CN110242545B - Full recovery system of waste heat of air compressor - Google Patents
Full recovery system of waste heat of air compressor Download PDFInfo
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- CN110242545B CN110242545B CN201910635144.7A CN201910635144A CN110242545B CN 110242545 B CN110242545 B CN 110242545B CN 201910635144 A CN201910635144 A CN 201910635144A CN 110242545 B CN110242545 B CN 110242545B
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- 238000011084 recovery Methods 0.000 title claims abstract description 32
- 239000002918 waste heat Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 238000001816 cooling Methods 0.000 claims abstract description 53
- 239000007789 gas Substances 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 electronics Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Compressor (AREA)
Abstract
The invention provides a waste heat full recovery system of an air compressor, which comprises: the first valve is connected with the outlet ends of the first cooling channel and the second cooling channel; the second valve is connected with the outlet end of the first reclaimed water inlet channel; the water pump is connected with the outlet end of the second valve; the first heat exchanger is provided with a first heat exchange channel and a second heat exchange channel; the third valve is connected between the outlet end of the first heat exchange channel and the inlet end of the first cooling channel; the fourth valve is connected between the outlet end of the first heat exchange channel and the inlet end of the second cooling channel; the fifth valve is connected between the outlet end of the first circulating water inlet channel and the inlet end of the second heat exchange channel; the inlet end of the sixth valve is connected with the outlet end of the second heat exchange channel; the second heat exchanger is provided with a third heat exchange channel and a fourth heat exchange channel; eleventh, twelve valves, link to each other with the inlet end and the outlet end of fourth heat transfer passageway. The invention can recycle the heat generated by the compressor, improve the energy utilization rate and reduce the energy waste and carbon emission.
Description
Technical Field
The invention relates to the field of energy recovery, in particular to a waste heat full recovery system of an air compressor.
Background
An air compressor (also called an air compressor or a compressor) is a device for compressing gas, and is widely applied to the fields of machine manufacturing, steel, metallurgy, shipbuilding, textile, electronics, chemical industry, petroleum, mine, light industry, food, medicine and the like. Air compressors generate a large amount of heat of compression during operation, and are currently cooled using external circulating water systems. For example, as shown in fig. 1, a three-stage air compressor system 100 is shown, which includes a primary compressor (i.e., a first compressor 101), a primary cooler (i.e., a first cooler 102), a secondary compressor (i.e., a second compressor 103), a secondary cooler (i.e., a second cooler 104, a three-stage compressor (i.e., a third compressor 105), and a three-stage cooler (i.e., a third cooler 106) in gaseous communication in this order, wherein the three coolers 102, 104, 106 each have fluid passages with inlet and outlet ends connected to an external circulating water system, respectively, to cool heat generated by the compressors 101, 103, 105 by the external circulating water system such that the heat is entirely discharged to the atmosphere, thereby wasting energy and accelerating the greenhouse effect.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a full waste heat recovery system of an air compressor, so that the heat generated by the compressor is recovered on the premise of not influencing the normal operation of the compressor, thereby improving the energy utilization rate and reducing the energy waste and carbon emission.
In order to achieve the above object, the present invention provides a total heat recovery system of an air compressor for recovering heat of an air compressor system including a first compressor, a first cooler, a second compressor, a second cooler, a third compressor, and a third cooler in gaseous communication in this order, wherein the first cooler has a first cooling passage, the second cooler has a second cooling passage, and the third cooler has a third cooling passage, wherein the total heat recovery system comprises:
The inlet end of the first valve is connected with the outlet end of the first cooling channel and the outlet end of the second cooling channel at the same time, and the outlet end of the first valve is connected with the inlet end of the first reclaimed water outlet channel;
the inlet end of the second valve is connected with the outlet end of the first reclaimed water inlet channel;
The inlet end of the water pump is connected with the outlet end of the second valve;
The first heat exchanger is provided with a first heat exchange channel and a second heat exchange channel for exchanging heat, and the inlet end of the first heat exchange channel is connected with the outlet end of the water pump;
The inlet end of the third valve is connected with the outlet end of the first heat exchange channel, and the outlet end of the third valve is connected with the inlet end of the first cooling channel;
the inlet end of the fourth valve is connected with the outlet end of the first heat exchange channel, and the outlet end of the fourth valve is connected with the inlet end of the second cooling channel;
The inlet end of the fifth valve is connected with the outlet end of the first circulating water inlet channel, and the outlet end of the fifth valve is connected with the inlet end of the second heat exchange channel;
The inlet end of the sixth valve is connected with the outlet end of the second heat exchange channel, and the outlet end of the sixth valve is connected with the inlet end of the first circulating water outlet channel;
A second heat exchanger having a third heat exchange channel and a fourth heat exchange channel for exchanging heat, an inlet end of the third heat exchange channel being connected to a gas outlet end of the third cooler, an outlet end of the third heat exchange channel being in communication with an external atmosphere;
an eleventh valve, the inlet end of which is connected with the outlet end of the second reclaimed water inlet channel, and the outlet end of which is connected with the inlet end of the fourth heat exchange channel;
And the inlet end of the twelfth valve is connected with the outlet end of the fourth heat exchange channel, and the outlet end of the twelfth valve is connected with the inlet end of the second reclaimed water outlet channel.
In one embodiment of the present invention, the total waste heat recovery system further includes:
a seventh valve connected between the outlet end of the first heat exchange passage and the inlet end of the fifth valve;
An eighth valve connected between the inlet end of the first valve and the outlet end of the sixth valve.
In one embodiment of the present invention, the total waste heat recovery system further includes:
a ninth valve connected between an inlet end of the fifth valve and an outlet end of the first circulating water inlet passage;
And a tenth valve connected between an outlet end of the sixth valve and an inlet end of the first circulating water outlet passage.
In one embodiment of the present invention, the first, second, fifth, eleventh and twelfth valves are on-off valves, and the third, fourth and sixth valves are regulating valves.
In one embodiment of the present invention, the seventh valve and the eighth valve are on-off valves.
In one embodiment of the present invention, the ninth valve and the tenth valve are on-off valves.
In one embodiment of the invention, the first heat exchanger and the second heat exchanger are plate heat exchangers.
In one embodiment of the present invention, the inlet end of the third cooling channel is connected to the outlet end of the second circulating water inlet channel through a tenth valve, and the outlet end of the third cooling channel is connected to the inlet end of the second circulating water outlet channel through a fourteenth valve.
In one embodiment of the invention, the total waste heat recovery system further comprises a combination of one or more of the following components:
a first thermometer connected to an inlet end of the first cooling channel;
a second thermometer connected to an outlet end of the first cooling channel;
A third thermometer connected to an inlet end of the second cooling channel; a fourth thermometer connected to an outlet end of the second cooling channel.
In one embodiment of the present invention, the total waste heat recovery system further includes: a flow meter connected between the outlet end of the second heat exchange passage and the inlet end of the sixth valve.
By adopting the technical scheme, the invention has the following beneficial effects:
According to the invention, the water flow flowing in the first reclaimed water inlet channel can be conveyed to the first heat exchanger through the water pump to be subjected to temperature regulation, and the water flow after temperature regulation flows through the first cooling channel and the second cooling channel through the third valve and the fourth valve respectively so as to absorb heat generated by the first compressor and the second compressor; meanwhile, the water flow flowing through the second heat exchanger can also absorb the heat generated by the third compressor, the absorbed heat can heat the water flow and is finally conveyed to an external recycling water system for recycling, so that the heat generated by the compressor is recycled on the premise of ensuring the normal operation of the air compressor system, the energy utilization rate is improved, and the energy waste and carbon emission are reduced.
Drawings
FIG. 1 is a schematic diagram of a prior art air compressor system;
fig. 2 is a schematic diagram of an embodiment of a total waste heat recovery system of an air compressor according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, 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.
The invention provides a full waste heat recovery system of an air compressor, which is used for recovering heat generated by the air compressor system 100. As shown in fig. 2, in the present embodiment, the air compressor system 100 includes a first compressor 101, a first cooler 102, a second compressor 103, a second cooler 104, a third compressor 105, and a third cooler 106 in gaseous communication in that order. Wherein the first cooler 102 has a first gas passage and a first cooling passage, the second cooler 104 has a second gas passage and a second cooling passage, and the third cooler 106 has a third gas passage and a third cooling passage. The inlet end of the first compressor 101 is connected to the atmosphere, the outlet end of the first compressor 101 is connected to the inlet of the first gas passage, the inlet end of the second compressor 103 is connected to the outlet of the first gas passage, the outlet end of the second compressor 103 is connected to the inlet of the second gas passage, the inlet end of the third compressor 105 is connected to the outlet of the second gas passage, and the outlet end of the third compressor 105 is connected to the atmosphere. The first, second and third compressors 101, 103, 105 of the present embodiment may be, for example, centrifugal compressors.
The waste heat full recovery system mainly comprises the following components: first valve 201, second valve 202, third valve 203, fourth valve 204, fifth valve 205, sixth valve 206, seventh valve 207, eighth valve 208, ninth valve 209, tenth valve 210, eleventh valve 215, twelfth valve 216, thirteenth valve 218, fourteenth valve 219, water pump 215, first heat exchanger 216, and second heat exchanger 217. The connection relationship between the components is described in detail below:
The inlet end of the first valve 201 is connected to both the outlet end of the first cooling passage and the outlet end of the second cooling passage, and the outlet end of the first valve 201 is connected to the inlet end of the first reclaimed water outlet passage 218. The outlet end of the first reclaimed water outlet channel 218 is connected to an external first reclaimed water utilization system.
The inlet end of the second valve 202 is connected to the outlet end of a first reclaimed water inlet passage 219, and the inlet end of the first reclaimed water inlet passage 219 is connectable to city tap water piping.
The inlet end of the water pump 215 is connected to the outlet end of the second valve 202.
The first heat exchanger 216 has a first heat exchange passage and a second heat exchange passage for exchanging heat, and an inlet end of the first heat exchange passage is connected to an outlet end of the water pump 215. In the present embodiment, the first heat exchanger 216 and the second heat exchanger may be, for example, plate heat exchangers.
The inlet end of the third valve 203 is connected to the outlet end of the first heat exchanging channel, and the outlet end of the third valve 203 is connected to the inlet end of the first cooling channel.
The inlet end of the fourth valve 204 is connected to the outlet end of the first heat exchange passage, and the outlet end of the fourth valve 204 is connected to the inlet end of the second cooling passage.
The inlet end of the fifth valve 205 is connected to the outlet end of the first circulating water inlet passage 220, and the outlet end of the fifth valve 205 is connected to the inlet end of the second heat exchange passage. Wherein, the inlet end of the first circulating water inlet channel 220 is connected with the outlet end of the external first circulating water system.
The inlet end of the sixth valve 206 is connected to the outlet end of the second heat exchange passage, and the outlet end of the fifth valve 205 is connected to the inlet end of the 217 first circulating water outlet passage 221. Wherein, the outlet end of the first circulating water outlet channel 221 is connected to the inlet end of the first circulating water system.
The seventh valve 207 is connected between the outlet end of the first heat exchange channel and the inlet end of the fifth valve 205.
The eighth valve 208 is connected between the inlet end of the first valve 201 and the outlet end of the sixth valve 206.
The ninth valve 209 is connected between an inlet end of the fifth valve 205 and an outlet end of the first circulating water inlet passage 220.
The tenth valve 210 is connected between the outlet end of the sixth valve 206 and the inlet end of the first circulating water outlet passage 221.
The second heat exchanger 217 has a third heat exchange passage and a fourth heat exchange passage for exchanging heat, an inlet end of the third heat exchange passage being connected to a gas outlet end of the third cooler 106, an outlet end of the third heat exchange passage being in communication with the outside atmosphere.
An inlet end of the eleventh valve 211 is connected to an outlet end of the second reclaimed water inlet passage 222, and an outlet end of the eleventh valve 211 is connected to an inlet end of the fourth heat exchanging passage.
The inlet end of the twelfth valve 212 is connected to the outlet end of the fourth heat exchange passage, the outlet end of the twelfth valve 212 is connected to the inlet end of the second reclaimed water outlet passage 213, and the outlet end of the first reclaimed water outlet passage 223 is connected to an external second reclaimed water utilization system.
In the present embodiment, the inlet end of the third cooling passage is connected to the outlet end of the second circulating water inlet passage 224 through the tenth valve 213. The outlet end of the third cooling passage is connected to the inlet end of the second circulating water outlet passage 225. The inlet end of the second circulating water inlet passage 224 and the outlet end of the second circulating water inlet passage 225 are connected to the outlet end and the inlet end of the external second circulating water system, respectively.
Among them, the first, second, fifth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, and fourteenth valves 201, 202, 205, 207, 208, 209, 210, 211, 212, 213, and 206 are preferably on-off valves, and the third, fourth, and sixth valves 203, 204, and 206 are preferably regulating valves. The difference between the switch valve and the regulating valve is that the switch valve has no special requirement on the flow characteristics except the switch and the switch, and the regulating valve has higher requirement on the flow characteristics in the whole process from the switch to the switch; the requirements of the switching valve on the switching speed and the leakage amount are higher than those of the regulating valve, and the requirements of the regulating valve on the opening stability between the opening and the closing are higher than those of the switching valve.
The direction indicated by the arrow in fig. 2 is the flow direction of the fluid.
The heat recovery process of the waste heat full recovery system is as follows:
first, the first valve 201, the second valve 202, the fifth valve 205, the sixth valve 206, the ninth valve 209, the tenth valve 210, the eleventh valve 211, the twelfth valve 212 are opened, while the seventh valve 207 and the eighth valve 208, and the thirteenth valve 213 and the fourteenth valve 214 are closed.
Then, the water pump 215 is activated to convey the water flowing in the first reclaimed water inlet passage 219 to the first heat exchange passage by the water pump 215, and then flows through the first cooling passage and the second cooling passage through the third valve 203 and the fourth valve 204, respectively, and finally flows into the first reclaimed water outlet passage 218 through the first valve 201, and is conveyed to the external first reclaimed water utilization system through the first reclaimed water outlet passage 218, thereby establishing a first reclaimed water flow path.
Then, the air compressor system 100 is started, and at this time, the water flowing through the first water recovery flow path is heated by the heat generated by the first compressor 101 and the second compressor 103, and finally flows into the first recovery water utilization system to be recovered. Meanwhile, the water flow in the second water recovery flow path formed by the second recovered water inlet channel 222, the eleventh valve 211, the fourth heat exchange channel, the twelfth valve, and the second recovered water outlet channel 223 is heated by the heat generated by the third compressor 105, and finally flows into the second recovered water utilization system to be recovered. For example, two recycled water utilization systems can use recycled hot water for heating, bathing, canteen, boiler water make-up preheating, reverse osmosis pure water production heat use, and the like.
It should be noted that, in the heat recovery process, the outlet water temperature of the coolers 102, 104, 106 needs to be increased for recycling, but an increase in the outlet water temperature of the coolers 102, 104, 106 will result in an increase in the outlet air temperature of the coolers 102, 104, 106. In the present application, the higher the discharge temperature of the first cooler 102, the higher the intake air temperature of the second compressor 103, and the higher the discharge temperature of the second cooler 104, the higher the intake air temperature of the third compressor 105. When the intake air temperature of the compressor is too high, compressor surge may result.
In order to prevent surging, the invention provides a first water cooling flow path formed by a second heat exchange channel, a fifth valve 205, a sixth valve 206, a first circulating water inlet channel 220, a first circulating water outlet channel and an external first circulating water system, and the inlet water temperature of the first cooler 102 and the second cooler 104 can be regulated by regulating the sixth valve 206 so as to quickly take away the inlet air temperature in the first cooler 102 and the second cooler 104, so that surging of the second compressor 103 and the third compressor 105 can be avoided. In addition, the invention also provides a third valve 203 and a fourth valve 204, and the outlet water temperature of the first cooler 102 and the second cooler 104 can be controlled by adjusting the third valve 203 and the fourth valve 204.
According to experimental tests, when the full waste heat recovery system is adopted for heat recovery, as long as the inlet water temperature of the first cooler 102 and the second cooler 104 is controlled to be not higher than 35 ℃ and the outlet water temperature is controlled to be not higher than 55 ℃, the second compressor 103 and the third compressor 105 can normally operate, and no surge occurs.
Referring again to fig. 2, when the air compressor system 100 is not stopped but heat recovery is no longer required, the seventh valve 207 and the eighth valve 208 are opened, and the water pump 215, the first valve 201, the second valve 202, the fifth valve 205, and the sixth valve 206 are closed, so that water supplied from the external first circulating water system can enter the first cooler 102 and the second cooler 104 through the ninth valve 209, the seventh valve 207, the third valve 203, and the fourth valve 204, and then flow back to the external first circulating water system through the eighth valve 208 and the tenth valve 210, thereby cooling heat generated from the first compressor 101 and the second compressor 103; meanwhile, the thirteenth valve 213 and the fourteenth valve 214 are opened, and the eleventh valve 211 and the twelfth valve 212 are closed, so that water supplied from the external second circulation water system may enter the third cooler 106 through the thirteenth valve 213 and flow back to the external second circulation water system through the fourteenth valve 214, thereby cooling heat generated from the third compressor 105.
According to the specific embodiment of fig. 2, the total waste heat recovery system of the present invention further comprises any one or more of the following four components (four are shown in fig. 2): a first thermometer 226 connected to the inlet end of the first cooling channel; a second thermometer 227 connected to the outlet end of the first cooling channel; a third thermometer 228 connected to the inlet end of the second cooling channel; and/or a fourth thermometer 229 connected to the outlet end of the second cooling channel. By the arrangement of these thermometers, the inlet water temperature and the outlet water temperature of the first cooler 102 and the second cooler 104 can be monitored to protect the normal operation of the waste heat full recovery system.
In addition, the waste heat full recovery system of the invention further comprises: a flow meter 230 is connected between the outlet end of the second heat exchange passage and the inlet end of the sixth valve 206 to facilitate accurate adjustment of the flow of water in the second heat exchange passage to adjust the inlet water temperature of the first cooler 102 and the second cooler 104.
In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (4)
1. A full waste heat recovery system for an air compressor for recovering heat from an air compressor system comprising a first compressor, a first cooler, a second compressor, a second cooler, a third compressor, and a third cooler in gaseous communication in sequence, wherein the first cooler has a first cooling channel, the second cooler has a second cooling channel, and the third cooler has a third cooling channel, the full waste heat recovery system comprising:
The inlet end of the first valve is connected with the outlet end of the first cooling channel and the outlet end of the second cooling channel at the same time, and the outlet end of the first valve is connected with the inlet end of the first reclaimed water outlet channel;
the inlet end of the second valve is connected with the outlet end of the first reclaimed water inlet channel;
The inlet end of the water pump is connected with the outlet end of the second valve;
The first heat exchanger is provided with a first heat exchange channel and a second heat exchange channel for exchanging heat, and the inlet end of the first heat exchange channel is connected with the outlet end of the water pump;
The inlet end of the third valve is connected with the outlet end of the first heat exchange channel, and the outlet end of the third valve is connected with the inlet end of the first cooling channel;
the inlet end of the fourth valve is connected with the outlet end of the first heat exchange channel, and the outlet end of the fourth valve is connected with the inlet end of the second cooling channel;
The inlet end of the fifth valve is connected with the outlet end of the first circulating water inlet channel, and the outlet end of the fifth valve is connected with the inlet end of the second heat exchange channel; and
The inlet end of the sixth valve is connected with the outlet end of the second heat exchange channel, and the outlet end of the sixth valve is connected with the inlet end of the first circulating water outlet channel;
a seventh valve connected between the outlet end of the first heat exchange passage and the inlet end of the fifth valve;
An eighth valve connected between the inlet end of the first valve and the outlet end of the sixth valve;
a ninth valve connected between an inlet end of the fifth valve and an outlet end of the first circulating water inlet passage;
a tenth valve connected between an outlet end of the sixth valve and an inlet end of the first circulating water outlet passage;
A second heat exchanger having a third heat exchange passage and a fourth heat exchange passage for exchanging heat, the second heat exchanger having a third heat exchange passage and a fourth heat exchange passage for exchanging heat
The inlet end of the third heat exchange channel is connected with the gas outlet end of the third cooler, and the outlet end of the third heat exchange channel is communicated with the external atmosphere;
an eleventh valve, the inlet end of which is connected with the outlet end of the second reclaimed water inlet channel, and the outlet end of which is connected with the inlet end of the fourth heat exchange channel;
A twelfth valve, the inlet end of which is connected with the outlet end of the fourth heat exchange channel, and the outlet end of which is connected with the inlet end of the second reclaimed water outlet channel;
the inlet end of the third cooling channel is connected with the outlet end of the second circulating water inlet channel through a tenth valve, and the outlet end of the third cooling channel is connected with the inlet end of the second circulating water outlet channel through a fourteenth valve;
The first valve, the second valve, the fifth valve, the eleventh valve and the twelfth valve are switching valves, and the third valve, the fourth valve and the sixth valve are regulating valves;
the seventh valve and the eighth valve are switching valves;
the ninth valve and the tenth valve are switching valves;
The first cooler has a first gas passage and a first cooling passage, the second cooler has a second gas passage and a second cooling passage, and the third cooler has a third gas passage and a third cooling passage; the inlet end of the first compressor is connected with the atmosphere, the outlet end of the first compressor is connected with the inlet of the first gas channel, the inlet end of the second compressor is connected with the outlet of the first gas channel, the outlet end of the second compressor is connected with the inlet of the second gas channel, the inlet end of the third compressor is connected with the outlet of the second gas channel, and the outlet end of the third compressor is connected with the atmosphere.
2. The total heat recovery system of an air compressor of claim 1, wherein the first heat exchanger and the second heat exchanger are plate heat exchangers.
3. The total waste heat recovery system of an air compressor of claim 1, further comprising a combination of one or more of the following components:
a first thermometer connected to an inlet end of the first cooling channel;
a second thermometer connected to an outlet end of the first cooling channel;
A third thermometer connected to an inlet end of the second cooling channel; and
A fourth thermometer connected to an outlet end of the second cooling channel.
4. The total waste heat recovery system of an air compressor of claim 1, further comprising:
a flow meter connected between the outlet end of the second heat exchange passage and the inlet end of the sixth valve.
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| JP2017129076A (en) * | 2016-01-21 | 2017-07-27 | 株式会社Ihi | Compressor system and waste heat recovery power generation method |
| CN206458574U (en) * | 2017-01-12 | 2017-09-01 | 湖南省轻工纺织设计院 | Waste heat recovery system of air compressor |
| CN107327422A (en) * | 2017-08-10 | 2017-11-07 | 上海赛捷能源科技有限公司 | A kind of high-efficiency air compressor heat recovery system |
| CN207935045U (en) * | 2017-12-27 | 2018-10-02 | 山东美天能源科技有限公司 | High-efficiency antiscaling thermostatic type waste heat recovery system of air compressor |
| CN109028928A (en) * | 2018-06-29 | 2018-12-18 | 上海赛捷能源科技有限公司 | A kind of heat recovery system of air compressor machine combination absorption drier |
| CN210483999U (en) * | 2019-07-15 | 2020-05-08 | 上海赛捷能源科技有限公司 | Air compressor's full recovery system of waste heat |
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| CN110242545A (en) | 2019-09-17 |
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