CN113908570B - A concentrating device for antifreeze liquid in heat source tower - Google Patents
A concentrating device for antifreeze liquid in heat source tower Download PDFInfo
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- CN113908570B CN113908570B CN202111309123.XA CN202111309123A CN113908570B CN 113908570 B CN113908570 B CN 113908570B CN 202111309123 A CN202111309123 A CN 202111309123A CN 113908570 B CN113908570 B CN 113908570B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0041—Use of fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0064—Feeding of liquid into an evaporator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0094—Evaporating with forced circulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/14—Evaporating with heated gases or vapours or liquids in contact with the liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
- B01D1/305—Demister (vapour-liquid separation)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
- B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
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Abstract
The invention relates to a concentrating device for heat source tower antifreeze fluid, which belongs to the technical field of concentrating equipment, and comprises a box body, wherein a circulating air unit is arranged on the box body; the condensing unit is arranged in the box body and positioned at one air inlet end, and the condensing unit is arranged in the box body and positioned at one air outlet end; the external side of the box body is provided with a heating unit which is connected with the concentration unit and used for circulating the solution, a refrigerating unit which is connected with the condensation unit and used for circulating the condensate water, and a solution box; the liquid inlet end of the heating unit and the liquid outlet end of the concentration unit are connected with a first circulating pipe; the solution tank is communicated with the first circulating pipe. Through adopting above-mentioned technical scheme, can be simpler, high-efficient, safe, reliable concentrate liquid, and the investment is lower, the energy consumption is lower, more convenient maintenance.
Description
Technical Field
The invention belongs to the technical field of concentration equipment, and particularly relates to a concentration device for heat source tower antifreeze.
Background
The comprehensive utilization of energy and resources is a long-term strategy for the economic and social development of China. For air conditioning systems, the search for inexpensive renewable sources of cold and heat is a key measure in energy conservation and consumption reduction. In the southern area of China, the air source heat pump is widely applied, but when the outdoor air temperature is low in winter, defrosting measures are needed to be adopted because of dew condensation on the surface of the fins of the outdoor heat exchanger, so that the heating effect is poor and the energy consumption of the system is additionally increased. The ground source heat pump uses soil or groundwater as a relatively stable heat source, has good heat supply performance when being used in winter, but the country has strict limitation on the use of groundwater, only geothermal resources are allowed to be obtained in the form of buried pipes, and the application of the ground source heat pump is limited due to the complicated geological conditions of the south of China.
The heat source tower heat pump is a novel heat pump technology, can solve the problems, and is relatively suitable for various buildings with outdoor air wet bulb temperature not lower than-8 ℃.
In order to extract the latent heat energy in the air, the heat source tower system condenses the vapor in the air when the heat source tower operates in winter, in addition, part of rain and snow fall into the heat source tower in rain and snow seasons, so that the concentration of the antifreeze is reduced, the freezing point of the antifreeze is raised, the operation of the heat source tower heat pump is affected, the system is required to concentrate the solution of the antifreeze system, remove the moisture in the antifreeze, and improve the concentration of the antifreeze, namely reduce the freezing point of the antifreeze.
There are some solutions and products on the market at present, but the following disadvantages need to be resolved:
1. The concentration efficiency is low: the dilute solution is heated and concentrated by using electricity, steam and fuel gas as a concentration heat source, so that the energy utilization rate is low and the energy consumption is high.
2. The equipment investment is high: some concentrating devices with relatively high concentrating efficiency have complex systems and high equipment prices.
3. Unstable operation: the noncondensable gas contained in the dilute antifreeze solution causes that a plurality of concentrating devices cannot realize continuous concentration, the concentrating devices are required to be periodically subjected to duty cycle for removing the noncondensable gas at intervals, continuous concentration cannot be realized, and the concentration yield is limited.
4. The operation and maintenance cost is high: the equipment is unstable to operate due to the corrosiveness of the dilute solution, and the operation and maintenance workload is large.
As described above, the existing heat source tower solution concentrating device generally has the problems of high investment, high energy consumption, high operation cost, inconvenient maintenance, unstable operation, low concentrating capacity and the like in whole or in part.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a concentrating device for the heat source tower antifreeze, which can concentrate liquid more simply, efficiently, safely and reliably, has lower investment, lower energy consumption and is more convenient to maintain.
In order to achieve the above object, the present invention provides a technical solution as follows:
a concentrating device for heat source tower antifreeze fluid comprises a box body, wherein a circulating air unit is arranged on the box body; the condensing unit is arranged in the box body and positioned at one air inlet end, and the condensing unit is arranged in the box body and positioned at one air outlet end; the external side of the box body is provided with a heating unit which is connected with the concentration unit and used for circulating the solution, a refrigerating unit which is connected with the condensation unit and used for circulating the condensate water, and a solution box; the liquid inlet end of the heating unit and the liquid outlet end of the concentration unit are connected with a first circulating pipe; the solution tank is communicated with the first circulating pipe.
Preferably, the circulating air unit comprises a circulating fan and a circulating air channel, and the circulating fan is fixed on the inner side of the box body and is positioned on one side of the concentrating unit far away from the condensing unit; the two ends of the circulating air channel are respectively communicated with the two ends of the box body, the end, close to the circulating fan, of the box body is an air inlet end, and the end, far away from the circulating fan, is an air outlet end; the concentration unit and the condensation unit are sequentially arranged between the air inlet end and the air outlet end of the box body; a heat balance air outlet is arranged on the box body and close to one side of the condensing unit, and a heat balance air inlet is arranged on the box body and close to one side of the condensing unit; the heat balance air outlet can discharge air in the box body, and the heat balance air inlet can provide cold air for the box body.
Preferably, the concentration unit comprises a first water spraying basin and a first water collecting basin which are arranged in the box body; the first water spraying basin is positioned at the top of the first water collecting basin, and a space exists between the first water spraying basin and the first water collecting basin; a liquid supply pipe is arranged between the first water spraying basin and the water supply end of the heating unit, and a first electromagnetic valve is arranged on the liquid supply pipe; one end of the first circulating pipe is communicated with the bottom of the first water collecting basin.
Preferably, a first cross flow filler is arranged between the first water spraying basin and the first water collecting basin, and the solution can enter the first cross flow filler through the first water spraying basin; the first cross-flow packing may be air-fed and solution-passed.
Preferably, the condensing unit comprises a second water spraying basin and a second water collecting basin which are arranged in the box body; the second water collecting basin is positioned below the second water spraying basin, and a second cross flow filler is arranged between the second water spraying basin and the second water collecting basin; the solution can enter the second cross flow filler through the second water spraying basin; the second cross-flow filler is capable of passing air and water; a water supply pipe is connected between the second water spraying basin and the refrigerating unit; a tap water pipe and a second drain pipe are connected to the second water collecting basin; the second water collecting basin is connected with a condensate pipe, a second circulating pipe is arranged between the condensate pipe and the water inlet end of the refrigerating unit, and a condensate pump is arranged on the condensate pipe.
Preferably, the heating unit comprises a heating pump arranged on the first circulating pipe and a heating piece, and the heating pump is connected with the first circulating pipe; the refrigerating unit comprises a refrigerating pump and a refrigerating piece, and the refrigerating pump is connected with the second circulating pipe; a refrigerating unit is arranged at the outer side of the box body and comprises a condenser, an evaporator and a compressor; the heating part is the condenser, and the refrigerating part is the evaporator; the liquid outlet end of the heating pump and the liquid inlet end of the liquid supply pipe are connected with the condenser for heat exchange; and the evaporator is connected between the water outlet end of the refrigeration pump and the water inlet end of the water supply pipe for heat exchange.
Preferably, the solution tank comprises a dilute solution tank and a concentrated solution tank, a liquid adding pipe is arranged on the dilute solution tank, a liquid return pipe is arranged on the concentrated solution tank, and the liquid adding pipe and the other end of the liquid return pipe are respectively communicated with the first circulating pipe; the liquid adding pipe is provided with a dilute solution pump, and the liquid returning pipe is provided with a concentrated solution pump.
Preferably, a liquid level sensor is arranged in the first water collecting basin, and when the liquid level sensor detects that the liquid level reaches a first set liquid level, the concentrated solution pump is controlled to be started, and the dilute solution pump is controlled to be closed; when the liquid level sensor detects that the liquid level reaches a second set liquid level, the concentrated solution pump is controlled to be closed, the dilute solution pump is controlled to be opened, and when the liquid level sensor is positioned between the first set liquid level and the second set liquid level, the concentrated solution pump and the dilute solution pump are opened; the first set liquid level is higher than the second set liquid level; a first drain pipe is connected to the first water collecting basin, and the water inlet end of the first drain pipe is not lower than the first set liquid level; the water outlet end of the first drain pipe is positioned at the outer side of the box body.
Preferably, the liquid supply pipe and the first circulating pipe are connected with a heat recovery unit, and the heat recovery unit comprises a heat supply pipeline and a first heat exchanger; the two ends of the heat supply pipeline are respectively connected with the liquid supply pipe and the first circulating pipe, and a second electromagnetic valve is arranged on the heat supply pipeline; the heat supply pipeline is communicated with a passage of the first heat exchanger; and two ends of the other passage of the first heat exchanger are respectively connected with a heat supply water inlet pipe and a heat supply water outlet pipe.
Preferably, a preheating component for preheating the liquid entering the first circulating pipe is arranged at the liquid adding pipe; the preheating component comprises a second heat exchanger and a third heat exchanger, a first branch pipe, a second branch pipe and a third branch pipe are formed on the liquid adding pipe in parallel connection with the pipe section of the dilute solution pump, which is far away from the dilute solution tank, the first branch pipe is provided with a third electromagnetic valve, and the second branch pipe is provided with a fourth electromagnetic valve; the first branch pipe is communicated with one passage of the second heat exchanger, and the condensed water pipe is communicated with the other passage of the second heat exchanger; the third branch pipe is communicated with one passage of the third heat exchanger, and the liquid return pipe is communicated with the other passage of the third heat exchanger.
The invention provides a concentration device for heat source tower antifreeze, which is characterized in that an air solution and condensed water are used as circulating media through a circulating air unit, a concentration unit, a condensation unit, a heating unit and a refrigerating unit, the inside water is controlled to be vaporized by heating the solution to be treated, the water vapor is conveyed through air, the concentration process of the solution is realized, and the water vapor in the air is condensed through the condensation unit and the refrigerating unit, so that the dehumidification effect of the circulating air is realized.
And secondly, the invention utilizes the refrigerating and heat exhausting functions of the water chilling unit to realize the heating effect on the solution and the refrigerating effect on the condensed water, so that the operation energy consumption of the concentrating device is lower, and meanwhile, the air circulation is normal-pressure air circulation without vacuum circulation, thus the operation is safer and more stable. The concentration device is a simple, efficient, safe and reliable solution for concentrating the solution of the heat source tower system.
Drawings
FIG. 1 is a schematic diagram of a concentrating apparatus for antifreeze of a heat source tower according to the present invention;
FIG. 2 is a schematic view showing a protruding concentration unit and a heating unit in a concentration device for heat source tower antifreeze of the present invention;
FIG. 3 is a schematic view of a protruding condensing unit and a refrigerating unit in a concentrating apparatus for heat source tower antifreeze of the present invention;
fig. 4 is a schematic view showing a protruding preheating assembly in a concentrating apparatus for heat source tower antifreeze of the present invention.
Reference numerals in the drawings:
100. A case; 110. a heat balance exhaust outlet; 120. the heat balance air inlet; 130. a water baffle;
200. A circulating air unit; 210. a circulating fan; 220. a circulating air duct;
300. a concentration unit; 310. a first basin; 320. a first water collection tub; 321. a liquid level sensor; 322. a first drain pipe; 330. a liquid supply pipe; 331. a first electromagnetic valve; 340. a first cross-flow filler;
400. a condensing unit; 410. a second basin; 420. a second water collection tub; 430. a second cross-flow filler; 440. a water supply pipe; 450. a tap water pipe; 460. a second drain pipe; 470. a condenser water pipe; 471. a condensate pump; 480. a second circulation pipe;
500. A heating unit; 510. a first circulation pipe; 520. heating the pump; 530. a heating member;
600. a refrigerating unit; 610. a refrigeration pump; 620. a refrigerating member;
700. A solution tank; 710. a dilute solution tank; 720. a concentrated solution tank; 730. a liquid adding tube; 740. a liquid return pipe; 750. a dilute solution pump; 760. a concentrated solution pump;
800. a heat recovery unit; 810. a heat supply pipe; 811. a second electromagnetic valve; 820. a first heat exchanger; 830. a heat supply water inlet pipe; 840. a heating water outlet pipe;
900. A preheating assembly; 910. a second heat exchanger; 920. a third heat exchanger; 930. a first branch pipe; 931. a third electromagnetic valve; 940. a second branch pipe; 941. a fourth electromagnetic valve; 950. and a third branch pipe.
Detailed Description
The present invention will be further described with reference to the drawings and the specific embodiments in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
The invention provides a concentration device for heat source tower antifreeze, referring to fig. 1-4, comprising a box body 100, wherein a circulating air unit 200 is arranged on the box body 100; a concentration unit 300 is arranged in the box body 100 and positioned at the air inlet end, and a condensation unit 400 is arranged in the box body 100 and positioned at the air outlet end; the outside of the case 100 is provided with a heating unit 500 connected with the concentration unit 300 for circulating the solution, a refrigerating unit 600 connected with the condensation unit 400 for circulating the condensed water, and a solution tank 700; the liquid inlet end of the heating unit 500 and the liquid outlet end of the concentration unit 300 are connected with a first circulation pipe 510; the solution tank 700 communicates with the first circulation pipe 510. In operation, the solution tank 700 is internally provided with a liquid to be concentrated, the liquid enters the heating unit 500 through the first circulating pipe 510 to be heated, the heated liquid enters the tank body 100 to be concentrated, a wind source is provided for the tank body 100 through the circulating wind unit 200, the wind blows away the water vapor in the liquid passing through the concentrating unit 300, and the water vapor enters the condensing unit 400 to be condensed, so that the solution is concentrated and the air is dehumidified.
The circulating air unit 200 includes a circulating fan 210 and a circulating air duct 220, the circulating fan 210 being fixed to the inside of the case 100 and being located at one side of the condensing unit 300 away from the condensing unit 400; two ends of the circulating air duct 220 are respectively communicated with two ends of the box body 100, one end of the box body 100, which is close to the circulating fan 210, is an air inlet end, and one end, which is far away from the circulating fan 210, is an air outlet end; the condensing unit 300 and the condensing unit 400 are sequentially disposed between the air inlet end and the air outlet end of the box 100, and can be penetrated by air supply, so that hot steam inside the condensing unit 300 can be carried away in the penetrating process, and the hot steam can be condensed in the condensing unit 400 to form liquid water. Through the circulating air unit 200, when in operation, the circulating air fan 210 is turned on, the circulating air fan 210 blows air to one side of the concentration unit 300, and in the blowing process, hot steam on the inner side of the concentration unit 300 is carried away, so that concentration of a solution is realized. In this process, the air temperature is increased, and in the condensation process of entering the condensation unit 400, the steam is condensed to form liquid water, thereby realizing the dehumidification of the circulating gas. The dehumidified air enters the air inlet end of the box body 100 again through the circulating air duct 220 at the outer side for circulation.
A heat balance air outlet 110 is arranged on one side of the box body 100, which is close to the concentration unit 300, and a heat balance air inlet 120 is arranged on one side of the box body 100, which is close to the condensation unit 400; the heat balance air outlet 110 can exhaust air in the box 100, and the heat balance air inlet 120 can provide cold air in the box 100. Through the heat balance air outlet 110 and the heat balance air inlet 120, the air quantity inside the box body 100 can be balanced, and the high-temperature and high-humidity air in the box body 100 can be discharged outwards through opening the heat balance air outlet 110, so that more heat can be discharged, and heat can be recovered. Low temperature and low humidity air may be introduced into the interior of the cabinet 100 through the heat balance air inlet 120.
The concentration unit 300 includes a first tub 310 and a first tub 320 disposed in the cabinet 100. Wherein the first water basin 310 is positioned at the top of the first water collection basin 320, and a space exists between the first water basin 310 and the first water collection basin 320; a liquid supply pipe 330 is arranged between the first basin 310 and the water supply end of the heating unit 500, and a first electromagnetic valve 331 is arranged on the liquid supply pipe 330; one end of the first circulation pipe 510 communicates with the bottom of the first water collecting tub 320.
A first cross flow packing 340 is provided between the first tub 310 and the first water collection tub 320, and a solution may enter the first cross flow packing 340 through the first tub 310; the first cross-flow packing 340 may be supplied with air and solution therethrough. The solution may be directly sprayed into the first cross-flow packing 340 through the first shower basin 310, or may be directly sprayed into the first cross-flow packing 340. Meanwhile, the solution enters the first water collecting basin 320 after passing through the first cross flow packing 340, the solution between the first water spraying basin 310 and the first water collecting tray can be sprayed or sprayed in addition to the falling mode of the first cross flow packing 340, and the solution and the water vapor in the spraying or spraying can be continuously separated in the blowing process through the spraying or spraying.
The condensing unit 400 includes a second tub 410 and a second tub 420 disposed in the case 100; the second water collecting tub 420 is positioned below the second water spraying tub 410, and a second cross flow packing 430 is provided between the second water spraying tub 410 and the second water collecting tub 420; the solution may enter the second cross-flow packing 430 through the second water basin 410; the second cross-flow packing 430 may supply air and water therethrough. A water supply pipe 440 is connected between the second tub 410 and the refrigerating unit 600; the second catchment basin 420 is connected with a tap water pipe 450 and a second drain pipe 460; wherein the water inlet end of the second drain pipe 460 may be located at a set maximum water level of the second catchment basin 420 while avoiding water from overflowing the second catchment basin 420.
The second water collecting tub 420 is connected with a condensate pipe 470, a second circulation pipe 480 is provided between the condensate pipe 470 and the water inlet end of the refrigerating unit 600, and a condensate pump 471 is provided on the condensate pipe 470. After the wind passes through the condensing unit 300, the water vapor is carried into the condensing unit 400. When the condensation unit 400 works, water is supplied to the second water collecting basin 420 through the tap water pipe 450, water in the second water collecting basin 420 enters the refrigeration unit 600 through the condensation water pipe 470 and the second circulating pipe 480 to refrigerate, the refrigerated water enters the second water spraying basin 410 through the water supply pipe 440 to spray, the water is sprayed on the second cross flow filler 430 to condense water vapor, and the passing gas dehumidification is realized. The condensed water passing through the second cross flow packing 430 is returned to the second water collecting tub 420 again to be circulated. The water in the second catchment basin 420 may also be discharged for use through the condensate line 470.
The heating unit 500 includes a heating pump 520 provided on the first circulation pipe 510, and a heating member 530, the heating pump 520 being connected to the first circulation pipe 510; the refrigerating unit 600 includes a refrigerating pump 610 and a refrigerating element 620, the refrigerating pump 610 being connected to the second circulation pipe 480; the heating element 530 is used for heating the solution, the cooling element 620 is used for cooling tap water, and the heating element 530 and the cooling element 620 are not limited to this, as long as the heating or cooling functions described above can be achieved.
A refrigerating unit is arranged outside the box body 100, and comprises a condenser, an evaporator and a compressor; the refrigeration unit is the same as the existing air conditioner refrigeration principle, and is not described in detail herein.
The heating element 530 is a condenser and the cooling element 620 is an evaporator; the liquid outlet end of the heating pump 520 and the liquid inlet end of the liquid supply pipe 330 are connected with a condenser for heat exchange; the evaporator is connected between the water outlet end of the refrigerating pump 610 and the water inlet end of the water supply pipe 440 to exchange heat.
The solution tank 700 comprises a dilute solution tank 710 and a concentrated solution tank 720, wherein a liquid adding pipe 730 is arranged on the dilute solution tank 710, a liquid return pipe 740 is arranged on the concentrated solution tank 720, and the other ends of the liquid adding pipe 730 and the liquid return pipe 740 are respectively communicated with the first circulating pipe 510; specifically, the connection position of the return tube 740 and the first circulation tube 510 is further away from the heating unit 500 than the filling tube 730. The liquid adding pipe 730 is provided with a dilute solution pump 750, and the liquid returning pipe 740 is provided with a concentrated solution pump 760.
Specifically, a liquid level sensor 321 is disposed in the first water collecting basin 320, and when the liquid level sensor 321 detects that the liquid level reaches a first set liquid level, the concentrated solution pump 760 is controlled to be turned on, and the dilute solution pump 750 is controlled to be turned off; when the liquid level sensor 321 detects that the liquid level reaches a second set liquid level, the concentrated solution pump 760 is controlled to be closed, and the dilute solution pump 750 is controlled to be opened; when the liquid level sensor is positioned between the first set liquid level and the second set liquid level, the concentrated solution pump 760 and the dilute solution pump 750 are started; the first set level is higher than the second set level. The water outlet end of the first water discharge pipe 322 is located outside the cabinet 100. With this arrangement, automatic control of the concentration rate can be achieved while avoiding the solution from flooding the first catchment basin 320.
The liquid supply pipe 330 and the first circulation pipe 510 are connected with a heat recovery unit 800, and the heat recovery unit 800 includes a heat supply pipe 810 and a first heat exchanger 820; two ends of the heat supply pipe 810 are respectively connected with the liquid supply pipe 330 and the first circulating pipe 510, and a second electromagnetic valve 811 is arranged on the heat supply pipe 810; the heat supply pipe 810 communicates with a passage of the first heat exchanger 820; a heat supply water inlet pipe 830 and a heat supply water outlet pipe 840 are connected to both ends of the other path of the first heat exchanger 820, respectively. The heat in the heated solution can be recovered and utilized by the heat recovery unit 800.
A preheating assembly 900 for preheating the liquid entering the first circulation tube 510 is provided at the liquid filling tube 730; the preheating assembly 900 includes a second heat exchanger 910 and a third heat exchanger 920. A first branch pipe 930, a second branch pipe 940 and a third branch pipe 950 are formed on the liquid adding pipe 730 in parallel on the pipe section of the dilute solution pump 750, which is far away from the dilute solution tank 710, a third electromagnetic valve 931 is arranged on the first branch pipe 930, and a fourth electromagnetic valve 941 is arranged on the second branch pipe 940; the first branch pipe 930 communicates with one passage of the second heat exchanger 910, and the condensate water pipe 470 communicates with the other passage of the second heat exchanger 910; the third branch pipe 950 communicates with one passage of the third heat exchanger 920, and the return pipe 740 communicates with the other passage of the third heat exchanger 920. With this arrangement, the first branch pipe 930 can cool the solution, the second branch pipe 940 can cool the solution at normal temperature, and the third branch pipe 950 can recover the temperature of the feed liquid entering the inside of the concentrated solution tank 720. By controlling the opening values of the third solenoid valve 931 and the fourth solenoid valve 941, it is possible to achieve adjustment of the temperature of the solution to be treated which enters the first circulation pipe 510.
A water baffle 130 is disposed between the condensing unit 300 and the condensing unit 400 inside the case 100, and holes through which the gas can pass are formed in the water baffle 130, so that water drops of the solution carried in the humid gas can be prevented from entering the condensing unit 400 by the water baffle 130.
When the solution needs to be concentrated, for example, the heat source tower antifreeze is concentrated, the antifreeze to be treated is placed in the dilute solution tank 710, and the circulating fan 210 is controlled to work, so that circulating air is formed inside the tank 100. The dilute solution pump 750 is controlled to operate to pump in the solution to be treated, which is initially preheated at the preheating assembly 900. The preheated solution is heated by the heating unit 500, enters the inside of the tank 100, and is concentrated in water. In the concentration process, the solution is sprayed to the first cross flow filler 340 at the lower side through the first water spraying basin 310 at the upper end, flows downwards in the first cross flow filler 340, flows horizontally in the flowing process, takes away the water vapor in the high-temperature solution, realizes concentration of the solution, and circulates or enters the concentrated solution tank 720 through the first water collecting basin 320 and the first circulating pipe 510. The wind carries the water vapor into the condensing unit 400 to be condensed.
In the condensation unit 400, water is added to the second water collection tub 420 through the tap water pipe 450 before concentration, the tap water enters the refrigeration unit 600 through the condensation water pipe 470 and the second circulating water pipe to perform refrigeration, the cooled tap water enters the second water shower tub 410 through the water supply pipe 440 to spray, the tap water newly enters the second water collection tub 420 through the second cross flow packing 430, and the passing humid air is cooled and dehumidified in the second cross flow packing 430.
It should be noted that: the concentrating device for the heat source tower antifreeze solution is used for concentrating the energy source tower solution, but is not limited to the concentration of the solution, and can also be used for concentrating other solutions.
The invention provides a concentration device for heat source tower antifreeze, which is provided with a circulating air unit 200, a concentration unit 300, a condensation unit 400, a heating unit 500 and a refrigeration unit 600, and is characterized in that air solution and condensed water are used as circulating media, the solution to be treated is heated, the vaporization of internal water is controlled, the water vapor is conveyed by air, the concentration process of the solution is realized, and the water vapor in the air is condensed by the condensation unit 400 and the refrigeration unit 600, so that the dehumidification effect of the circulating air is realized.
And secondly, the invention utilizes the refrigerating and heat exhausting functions of the water chilling unit to realize the heating effect on the solution and the refrigerating effect on the condensed water, so that the operation energy consumption of the concentrating device is lower, and meanwhile, the air circulation is normal-pressure air circulation without vacuum circulation, thus the operation is safer and more stable. The concentration device is a simple, efficient, safe and reliable solution for concentrating the solution of the heat source tower system.
In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," "rear," and the like indicate an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, but do not indicate or imply that the apparatus or elements to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or communicating between the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Embodiments of the invention and features of the embodiments may be combined with each other without conflict.
The foregoing examples merely illustrate embodiments of the invention and are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A enrichment facility for heat source tower antifreeze fluid, its characterized in that: the device comprises a box body (100), wherein a circulating air unit (200) is arranged on the box body (100);
a concentration unit (300) is arranged in the box body (100) and positioned at the air inlet end, and a condensation unit (400) is arranged in the box body (100) and positioned at the air outlet end;
a heating unit (500) connected with the concentration unit (300) and used for circulating the solution, a refrigerating unit (600) connected with the condensation unit (400) and used for circulating the condensate water, and a solution tank (700) are arranged outside the tank body (100);
the liquid inlet end of the heating unit (500) and the liquid outlet end of the concentration unit (300) are connected with a first circulating pipe (510);
the solution tank (700) is in communication with the first circulation tube (510).
2. The concentrating apparatus for antifreeze of heat source tower according to claim 1, wherein said circulating air unit (200) comprises a circulating fan (210) and a circulating air duct (220),
The circulating fan (210) is fixed on the inner side of the box body (100) and is positioned on one side of the concentration unit (300) away from the condensation unit (400);
two ends of the circulating air duct (220) are respectively communicated with two ends of the box body (100), one end, close to the circulating fan (210), of the box body (100) is an air inlet end, and one end, far away from the circulating fan (210), is an air outlet end;
the concentration unit (300) and the condensation unit (400) are sequentially arranged between the air inlet end and the air outlet end of the box body (100);
A heat balance air outlet (110) is formed in one side, close to the concentration unit (300), of the box body (100), and a heat balance air inlet (120) is formed in one side, close to the condensation unit (400), of the box body (100);
The heat balance air outlet (110) can discharge air in the box body (100), and the heat balance air inlet (120) can provide cold air for the box body (100).
3. The apparatus according to claim 1, wherein the concentration unit (300) includes a first basin (310) and a first basin (320) disposed in the tank (100);
The first water spraying basin (310) is positioned at the top of the first water collecting basin (320), and a space exists between the first water spraying basin (310) and the first water collecting basin (320);
A liquid supply pipe (330) is arranged between the first water spraying basin (310) and the water supply end of the heating unit (500), and a first electromagnetic valve (331) is arranged on the liquid supply pipe (330); one end of the first circulating pipe (510) is communicated with the bottom of the first water collecting basin (320).
4. A concentrating device for antifreeze of heat source tower according to claim 3, wherein a first cross flow filler (340) is arranged between the first water spray basin (310) and the first water collection basin (320),
Solution can enter the first cross flow filler (340) through the first water basin (310); the first cross-flow packing (340) is air-and solution-permeable.
5. A concentrating apparatus for heat source tower antifreeze according to claim 3, wherein said condensing unit (400) includes a second water basin (410) and a second water collection basin (420) disposed within said tank (100);
The second water collecting basin (420) is positioned below the second water spraying basin (410), and a second cross flow filler (430) is arranged between the second water spraying basin (410) and the second water collecting basin (420); solution can enter the second cross flow filler (430) through the second water spraying basin (410), and the second cross flow filler (430) can be supplied with air and water to pass through;
A water supply pipe (440) is connected between the second water spraying basin (410) and the refrigerating unit (600);
a tap water pipe (450) and a second drain pipe (460) are connected to the second water collecting basin (420);
The second water collecting basin (420) is connected with a condensate pipe (470), a second circulating pipe (480) is arranged between the condensate pipe (470) and the water inlet end of the refrigerating unit (600), and a condensate pump (471) is arranged on the condensate pipe (470).
6. The concentrating apparatus for antifreeze of a heat source tower according to claim 5, wherein said heating unit (500) includes a heating pump (520) provided on said first circulation pipe (510), and a heating member (530), said heating pump (520) being connected to said first circulation pipe (510); the refrigeration unit (600) comprises a refrigeration pump (610) and a refrigeration piece (620), wherein the refrigeration pump (610) is connected with the second circulation pipe (480);
A refrigerating unit is arranged outside the box body (100), and comprises a condenser, an evaporator and a compressor;
the heating element (530) is the condenser, and the cooling element (620) is the evaporator;
The liquid outlet end of the heating pump (520) and the liquid inlet end of the liquid supply pipe (330) are connected with the condenser for heat exchange; the evaporator is connected between the water outlet end of the refrigeration pump (610) and the water inlet end of the water supply pipe (440) for heat exchange.
7. The concentrating apparatus for antifreeze of a heat source tower according to claim 6, wherein:
The solution tank (700) comprises a dilute solution tank (710) and a concentrated solution tank (720), a liquid adding pipe (730) is arranged on the dilute solution tank (710), a liquid return pipe (740) is arranged on the concentrated solution tank (720), and the liquid adding pipe (730) and the other end of the liquid return pipe (740) are respectively communicated with the first circulating pipe (510);
The liquid adding pipe (730) is provided with a dilute solution pump (750), and the liquid returning pipe (740) is provided with a concentrated solution pump (760).
8. The concentrating apparatus for antifreeze of a heat source tower according to claim 7, wherein:
A liquid level sensor (321) is arranged in the first water collecting basin (320), and when the liquid level detected by the liquid level sensor (321) reaches a first set liquid level, the concentrated solution pump (760) is controlled to be started, and the dilute solution pump (750) is controlled to be closed; when the liquid level sensor (321) detects that the liquid level reaches a second set liquid level, the concentrated solution pump (760) is controlled to be closed, and the dilute solution pump (750) is controlled to be opened; when the liquid level sensor is positioned between a first set liquid level and a second set liquid level, the concentrated solution pump (760) and the dilute solution pump (750) are started; the first set liquid level is higher than the second set liquid level;
A first drain pipe (322) is connected to the first water collecting basin (320), and the water inlet end of the first drain pipe (322) is not lower than the first set liquid level; the water outlet end of the first water outlet pipe (322) is positioned at the outer side of the box body (100).
9. A concentrating apparatus for antifreeze of heat source tower according to claim 3, wherein said liquid supply pipe (330) and said first circulation pipe (510) are connected with a heat recovery unit (800), said heat recovery unit (800) comprising a heat supply pipe (810), and a first heat exchanger (820);
two ends of the heat supply pipeline (810) are respectively connected with the liquid supply pipe (330) and the first circulating pipe (510), and a second electromagnetic valve (811) is arranged on the heat supply pipeline (810);
-a passage through which said heating conduit (810) communicates with said first heat exchanger (820); two ends of the other passage of the first heat exchanger (820) are respectively connected with a heat supply water inlet pipe (830) and a heat supply water outlet pipe (840).
10. The concentrating apparatus for antifreeze of heat source tower according to claim 8, wherein said liquid feeding pipe (730) is provided with a preheating unit (900) for preheating the liquid entering the first circulation pipe (510);
The preheating assembly (900) comprises a second heat exchanger (910) and a third heat exchanger (920),
The liquid adding pipe (730) is provided with a first branch pipe (930), a second branch pipe (940) and a third branch pipe (950) which are arranged on the liquid adding pipe (730) and are positioned on the pipe section of the dilute solution pump (750) far away from the dilute solution tank (710) in parallel, the first branch pipe (930) is provided with a third electromagnetic valve (931), and the second branch pipe (940) is provided with a fourth electromagnetic valve (941);
the first branch pipe (930) is communicated with one passage of the second heat exchanger (910), and the condensed water pipe (470) is communicated with the other passage of the second heat exchanger (910); the third branch pipe (950) is communicated with one passage of the third heat exchanger (920), and the liquid return pipe (740) is communicated with the other passage of the third heat exchanger (920).
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| CN217119340U (en) * | 2021-11-06 | 2022-08-05 | 江苏辛普森新能源有限公司 | A enrichment facility for heat source tower antifreeze |
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| IL87088A (en) * | 1988-07-12 | 1993-05-13 | Ormat Turbines 1965 Ltd | Method of and apparatus for evaporating and cooling liquid |
| JPH09262401A (en) * | 1996-03-27 | 1997-10-07 | Konica Corp | Heat pump type evaporative concentrator |
| CA2223922C (en) * | 1997-12-05 | 2006-09-05 | Inland Technologies Inc. | Method and apparatus for removing water from aqueous fluid mixture |
| JP2000070601A (en) * | 1998-08-28 | 2000-03-07 | Konica Corp | Evaporation-concentration apparatus and method for evaporation-concentration of photographic waste liquid |
| US20090173678A1 (en) * | 2008-01-03 | 2009-07-09 | Clark Emory Lysne | Vertical evaporation technologies |
| CN102759156B (en) * | 2012-07-06 | 2014-08-13 | 清华大学 | A solution regeneration treatment device |
| CN204388351U (en) * | 2014-12-08 | 2015-06-10 | 江苏辛普森新能源有限公司 | The simple and easy enrichment facility of a kind of heat source tower heat pump solution |
| CN104771918B (en) * | 2015-04-20 | 2016-03-23 | 黄国和 | A kind of cold concentration systems based on wet evaporation |
| CN209865331U (en) * | 2019-04-23 | 2019-12-31 | 重庆三峡学院 | A heat source tower circulating water concentration device |
| CN110655255A (en) * | 2019-10-09 | 2020-01-07 | 江苏同奇环保科技有限公司 | Waste water evaporation concentration decrement integrated device |
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Denomination of invention: A concentrated device for heat source tower antifreeze liquid Granted publication date: 20241015 Pledgee: Yangzhou Branch of Bank of Jiangsu Co.,Ltd. Pledgor: JIANGSU SIMPSON NEW ENERGY Co.,Ltd. Registration number: Y2025980054894 |