CN224188773U - Gas-fired hot water unit - Google Patents
Gas-fired hot water unitInfo
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- CN224188773U CN224188773U CN202520962039.5U CN202520962039U CN224188773U CN 224188773 U CN224188773 U CN 224188773U CN 202520962039 U CN202520962039 U CN 202520962039U CN 224188773 U CN224188773 U CN 224188773U
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Abstract
The utility model discloses a gas water heating device, which relates to the field of water heating equipment, and comprises a combustion device, a first heat exchanger, a fan and a second heat exchanger, wherein the combustion device is arranged at the upstream of the first heat exchanger, the second heat exchanger is arranged at the downstream of the first heat exchanger, the fan is used for driving high-temperature flue gas generated by the combustion device to flow through the first heat exchanger and the second heat exchanger in sequence, the second heat exchanger comprises a shell, a heat exchange part for exchanging heat between the flue gas flowing into the second heat exchanger after flowing through the first heat exchanger and water flowing into the second heat exchanger is arranged in the shell, the shell is provided with a condensed water drainage part, condensed water generated on the heat exchange part can flow to the condensed water drainage part, an inner cavity of the condensed water atomization device is communicated with the condensed water drainage part so as to enable the condensed water to flow into the inner cavity, and an airflow inlet, an airflow outlet, a diversion channel and the like are arranged on the condensed water atomization device. The utility model can solve the problem of low atomization efficiency of the condensate atomization device.
Description
Technical Field
The utility model relates to the technical field of water heating equipment, in particular to a gas water heating device.
Background
In the field of gas water heaters, a condensing heat exchanger is typically provided downstream of the main heat exchanger in order to improve energy conversion efficiency. When water flows through the condensing heat exchanger to exchange heat with the flue gas, water vapor in the flue gas is separated out when meeting cold, and condensed water is formed on the surface of the condensing heat exchanger. In order to avoid the additional arrangement of an external drain pipe for discharging condensate water, a condensate water atomizing device is arranged in the gas water heater in the prior art, and the condensate water is atomized and then discharged along with flue gas.
However, the condensate atomizing chamber of the current gas water heater is limited by the internal structure of the water heater, and the space is narrow. Under this situation, the existing condensate atomizing device is difficult to fully realize efficient atomization of condensate due to insufficient space, so that the condensate atomization efficiency is low, and further, the discharge speed of condensate is low, so that the actual use requirement cannot be met, and further improvement is necessary.
Disclosure of utility model
In order to overcome the defects in the prior art, the technical problem to be solved by the embodiment of the utility model is to provide a gas water heating device which can solve the problem of low atomization efficiency of a condensate water atomization device.
The specific technical scheme of the embodiment of the utility model is as follows:
The gas water heating device comprises a combustion device, a first heat exchanger, a fan and a second heat exchanger, wherein the combustion device is arranged at the upstream of the first heat exchanger, the second heat exchanger is arranged at the downstream of the first heat exchanger, and the fan is used for driving high-temperature flue gas generated by the combustion device to flow through the first heat exchanger and the second heat exchanger in sequence;
The second heat exchanger comprises a shell, a heat exchange component for exchanging heat between the smoke flowing into the second heat exchanger after flowing through the first heat exchanger and the water flow entering the second heat exchanger is arranged in the shell, a condensed water drainage part is arranged on the shell, and condensed water generated on the heat exchange component can flow to the condensed water drainage part;
The gas water heating device further comprises a condensate water atomization device, an inner cavity of the condensate water atomization device is communicated with the condensate water drainage part so that condensate water flows to the inner cavity, an airflow inlet, an airflow outlet and a diversion channel are arranged on the condensate water atomization device, a communication opening is formed between the diversion channel and the inner cavity, airflow flowing into the condensate water atomization device from the airflow inlet sequentially flows through the diversion channel, the communication opening, the inner cavity and the airflow outlet and then flows out of the condensate water atomization device, and the area of the communication opening is larger than that of the airflow inlet so as to disperse airflow flowing in from the airflow inlet.
Preferably, the condensate water atomizing device comprises a shell, an atomizing module and a flow guiding component, wherein the atomizing module and the flow guiding component are arranged on the shell, the inner cavity is formed in the shell, the flow guiding channel is formed in the flow guiding component, the atomizing module is arranged on the shell and is used for atomizing condensate water flowing into the shell, a condensate water inlet is formed in the shell, and the condensate water inlet is communicated with the condensate water draining part.
Preferably, the flow guiding member is disposed in the housing, the air flow inlet and the air flow outlet are formed on the housing, and the communication port is formed on the flow guiding member and is located in the housing;
Or, the flow guiding component is arranged outside the shell, the air flow inlet is formed on the flow guiding component, and the air flow outlet and the communication port are arranged on the shell;
The airflow entering the shell from the airflow inlet sequentially flows through the flow guide channel in the flow guide component and the communication port, then enters the shell, and carries atomized condensed water mist to flow out from the airflow outlet.
Preferably, the flow guiding member is provided on a first side of the housing, and the air flow outlet is provided on a second side of the housing opposite to the first side of the housing or on a top of the housing.
Preferably, the diversion component is arranged on the first side surface of the shell, and the diversion component is composed of a part of the first side surface of the shell and a diversion cover arranged on the first side surface of the shell.
Preferably, the flow guiding component is arranged in the shell, the flow guiding cover extends downwards from the airflow inlet, the communication port is arranged on the flow guiding component, and the communication port is formed by the tail end of the flow guiding cover and a guide plate arranged at the lower part of the tail end of the flow guiding cover.
Preferably, the guide plate is disposed in a substantially horizontal direction.
The air inlet is arranged on the first side face, the air guide cover comprises a first baffle plate arranged at the upper part of the air inlet and a second baffle plate opposite to the air inlet, and the first baffle plate, the second baffle plate, part of the third side face of the shell and part of the fourth side face of the shell are enclosed to form the air guide cover.
Preferably, the length of the communication port is greater than the length of the airflow inlet.
Preferably, the communication port is flat, and the width of the communication port is smaller than 30mm.
Preferably, the included angle between the direction of the air flow entering the inner cavity through the communication port and the liquid level of the inner cavity is between-45 degrees and 45 degrees.
Preferably, the communication port is disposed generally horizontally such that air flow into the lumen flows generally horizontally into the lumen.
Preferably, the communication port is a plurality of openings which are arranged approximately horizontally, and the total length of a plurality of the openings is larger than the length of the air flow inlet.
Preferably, the device further comprises a slow flow cavity, wherein the air entering from the air flow inlet flows through the slow flow cavity and then enters the shell through the communication port.
Preferably, the diversion channel comprises the slow flow cavity, and the cross-sectional area of the slow flow cavity is larger than the area of the air flow inlet.
Preferably, the atomization module is an ultrasonic atomization device, the ultrasonic atomization device is provided with a preset liquid level range for efficient atomization, and the atomization module further comprises a first liquid level detection device, and a first detection position of the first liquid level detection device is located in the preset liquid level range.
Preferably, the lowest point of the communication port is higher than the first detection position, and the distance between the lowest point of the communication port and the first detection position is smaller than 30mm.
Preferably, the height of the air flow inlet is higher than the height of the communication port.
Preferably, the airflow inlet communicates with the interior of the housing or in the vicinity of the flue gas inlet of the housing.
Preferably, the flue gas treatment device further comprises an inlet pipe, wherein the inlet of the inlet pipe is arranged at a position in the shell or near the flue gas inlet of the shell, and the outlet of the inlet pipe is connected with the air flow inlet.
Preferably, the inlet of the fan is communicated with the flue gas outlet of the first heat exchanger, and the outlet of the fan is communicated with the flue gas inlet of the second heat exchanger.
Preferably, the housing is provided with a flue gas outlet, and the flue gas outlet is communicated with the flue gas outlet.
Preferably, the device further comprises an eduction tube, wherein the eduction tube inlet is connected with the airflow outlet, and the eduction tube outlet is arranged at the flue gas outlet or at a position close to the flue gas outlet in the shell.
Preferably, the ultrasonic atomizing device further comprises a controller, wherein the controller is connected with the first detection device and the ultrasonic atomizing device, and when the first detection device detects that the liquid level in the inner cavity reaches the first detection position, the controller increases the power of the ultrasonic atomizing device.
The technical scheme of the utility model has the following remarkable beneficial effects:
According to the gas water heating device, the fan drives the high-temperature flue gas generated by the combustion device to flow through the first heat exchanger and the second heat exchanger in sequence, and water to be heated sequentially passes through the second heat exchanger and the inside of the first heat exchanger, so that heat exchange is performed with the flue gas, and the purpose of heating is achieved. The flue gas flowing into the second heat exchanger after flowing through the first heat exchanger exchanges heat with the water flow entering the second heat exchanger through the heat exchange component, condensed water is formed on the heat exchange component, and the condensed water flows into the inner cavity of the condensed water atomization device through the condensed water drainage part. The air flow flowing into the condensate water atomization device from the air flow inlet sequentially flows through the diversion channel, the communication port, the inner cavity and the air flow outlet and then flows out of the condensate water atomization device, so that condensate water mist formed after the condensate water in the inner cavity is atomized is taken away and discharged out of the condensate water atomization device. In the process, the condensed water mist formed in the inner cavity is carried away to discharge the condensed water atomization device, so that new condensed water mist is formed in the inner cavity, the atomization efficiency in the inner cavity of the condensed water atomization device is greatly improved, and the speed of discharging condensed water out of the condensed water atomization device is further improved.
Specific embodiments of the utility model are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not limited in scope thereby. Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments in combination with or instead of the features of the other embodiments.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present utility model, and are not particularly limited. Those skilled in the art with access to the teachings of the present utility model can select a variety of possible shapes and scale sizes to practice the present utility model as the case may be.
FIG. 1 is a schematic view of the internal structure of a gas water heater according to an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of a second heat exchanger and condensate atomizing device in accordance with an embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of a condensate atomizing device at an angle according to an embodiment of the present utility model;
fig. 4 is a schematic cross-sectional view of a condensed water atomizer according to another embodiment of the present utility model.
Reference numerals of the above drawings:
1. The device comprises a combustion device, 2, a first heat exchanger, 3, a fan, 4, a second heat exchanger, 41, a shell, 411, a flue gas outlet, 42, a heat exchange component, 43, a condensate water drainage part, 5, a condensate water atomization device, 51, an inner cavity, 52, an air inlet, 53, an air outlet, 54, a diversion channel, 541, a slow flow cavity, 55, a communication port, 56, a shell, 561, a condensate water inlet, 562, a first side surface, 563, a second side surface, 564, a third side surface, 57, an atomization module, 58, a diversion component, 581, a diversion cover, 5811, a first baffle, 5812, a second baffle, 59, a guide plate, 6, an inlet pipe and 7, an outlet pipe.
Detailed Description
The details of the utility model will be more clearly understood in conjunction with the accompanying drawings and description of specific embodiments of the utility model. The specific embodiments of the utility model described herein are for purposes of illustration only and are not to be construed as limiting the utility model in any way. Given the teachings of the present utility model, one of ordinary skill in the related art will contemplate any possible modification based on the present utility model, and such should be considered to be within the scope of the present utility model. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, may be in communication with each other in two elements, may be directly connected, or may be indirectly connected through an intermediary, and the specific meaning of the terms may be understood by those of ordinary skill in the art in view of the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In order to solve the problem of low atomization efficiency of the condensate atomization device 5, a gas water heating device is provided in the present utility model, fig. 1 is a schematic structural diagram of an interior of the gas water heating device in an embodiment of the present utility model, fig. 2 is a schematic sectional diagram of a second heat exchanger and the condensate atomization device in an embodiment of the present utility model, as shown in fig. 1 and fig. 2, the gas water heating device includes a combustion device 1, a first heat exchanger 2, a fan 3, and a second heat exchanger 4, the combustion device 1 is disposed upstream of the first heat exchanger 2, the second heat exchanger 4 is disposed downstream of the first heat exchanger 2, and the fan 3 is used for driving high-temperature flue gas generated by the combustion device 1 to flow through the first heat exchanger 2 and the second heat exchanger 4 in sequence; the second heat exchanger 4 comprises a shell 41, a heat exchange part 42 for exchanging heat between the flue gas flowing into the second heat exchanger 4 after flowing through the first heat exchanger 2 and the water flowing into the second heat exchanger 4 is arranged in the shell 41, a condensate water draining part 43 is arranged on the shell 41, condensate water generated on the heat exchange part 42 flows to the condensate water draining part 43, the gas water heating device further comprises a condensate water atomizing device 5, an inner cavity 51 of the condensate water atomizing device 5 is communicated with the condensate water draining part 43 so as to enable condensate water to flow into the inner cavity 51, an air flow inlet 52, an air flow outlet 53 and a diversion channel 54 are arranged on the condensate water atomizing device 5, a communication opening 55 is formed between the diversion channel 54 and the inner cavity 51, and the air flow flowing into the condensate water atomizing device 5 from the air flow inlet 52 flows out of the condensate water atomizing device 5 after sequentially flowing through the diversion channel 54, the communication opening 55, the inner cavity 51 and the air flow outlet 53, and the area of the communication opening 55 is larger than that of the air flow inlet 52 so as to disperse the air flow flowing into the air flow from the air flow inlet 52.
The gas water heating device drives high-temperature flue gas generated by the combustion device 1 to flow through the first heat exchanger 2 and the second heat exchanger 4 through the fan 3, and water to be heated sequentially passes through the second heat exchanger 4 and the inside of the first heat exchanger 2, so that heat exchange is performed with the flue gas, and the purpose of heating is achieved. The flue gas flowing through the first heat exchanger 2 and then flowing into the second heat exchanger 4 exchanges heat with the water flow entering the second heat exchanger 4 through the heat exchange component 42, condensed water is formed on the heat exchange component 42, and the condensed water flows into the inner cavity 51 of the condensed water atomization device 5 through the condensed water drainage part 43. The air flow flowing into the condensate water atomizing device 5 from the air flow inlet 52 flows through the diversion channel 54, the communication port 55, the inner cavity 51 and the air flow outlet 53 in sequence and then flows out of the condensate water atomizing device 5, so that condensate water mist formed after the condensate water in the inner cavity 51 is atomized is taken away and discharged out of the condensate water atomizing device 5. In the process, the condensed water mist formed in the inner cavity 51 can be carried away to discharge the condensed water atomization device 5, so that new condensed water mist is formed in the inner cavity 51, the atomization efficiency in the inner cavity 51 of the condensed water atomization device 5 is greatly improved, and the rate of discharging condensed water out of the condensed water atomization device 5 is further improved.
As shown in fig. 1, the combustion device 1 is used for mixing and burning fuel gas and air input into a fuel gas water heating device, thereby forming high-temperature flue gas. The first heat exchanger 2 is used for exchanging heat with the high-temperature flue gas output by the combustion device 1, so that water flowing through the first heat exchanger 2 is heated. The high-temperature flue gas flowing through the first heat exchanger 2 is converted into flue gas with relatively low temperature after heat exchange. The fan 3 is used for driving high-temperature flue gas generated by the combustion device 1 to flow through the first heat exchanger 2 and the second heat exchanger 4 in sequence. The flue gas after heat exchange of the first heat exchanger 2 is input into the second heat exchanger 4 for heat exchange under the action of the fan 3, so that water passing through the second heat exchanger 4 is heated. The water to be heated in the gas water heating device is preheated by the flue gas after heat exchange of the first heat exchanger 2 through the second heat exchanger 4, and the preheated water flows into the first heat exchanger 2 for heating, so that hot water meeting the requirement temperature of a user is formed, and the hot water is output and supplied to the user.
Fig. 3 is a schematic cross-sectional view of a condensed water atomization device under one angle, and fig. 4 is a schematic cross-sectional view of a condensed water atomization device under another angle, as shown in fig. 2 to 4, in an embodiment of the present utility model, the second heat exchanger 4 may include a housing 41, and a heat exchanging component 42 for exchanging heat between the flue gas flowing through the first heat exchanger 2 and then flowing into the second heat exchanger 4 and the water flowing into the second heat exchanger 4 is disposed in the housing 41. The flue gas after heat exchange by the first heat exchanger 2 is input into the shell 41 under the action of the fan 3, flows through the outside of the heat exchange component 42, exchanges heat with water to be heated flowing into the heat exchange component 42, and then flows out of the shell 41 and is discharged through a smoke discharge pipe of the gas water heater. The housing 41 is provided with a flue gas outlet 411, and the flue gas outlet 411 is communicated with a flue gas discharge pipe of the gas water heating device so that flue gas flows out of the flue gas outlet 411 of the housing 41 and is discharged from the flue gas discharge pipe. When the flue gas exchanges heat with the water to be heated flowing through the heat exchange component 42, as the flue gas is further cooled, water vapor in the flue gas is condensed into liquid to be separated out on the heat exchange component 42, and the condensed water separated out on the heat exchange component 42 falls into the shell 41 and finally flows out from the condensed water drainage part 43 of the shell 41.
Since the gas water heating apparatus includes the condensate atomizing device 5, the inner chamber 51 of the condensate atomizing device 5 communicates with the condensate drain 43, and thus the condensate flowing out of the condensate drain 43 of the housing 41 flows into the inner chamber 51 of the condensate atomizing device 5. The condensate atomizing device 5 is provided with an air inlet 52, an air outlet 53 and a diversion channel 54. The flow guide channel 54 and the inner cavity 51 are provided with a communication port 55, and air flow flowing into the condensate water atomization device 5 from the air flow inlet 52 sequentially flows through the flow guide channel 54, the communication port 55, the inner cavity 51 and the air flow outlet 53 and then flows out of the condensate water atomization device 5, so that condensate water mist formed after condensate water in the inner cavity 51 is atomized is taken away and discharged out of the condensate water atomization device 5. In the process, the condensed water mist formed in the inner cavity is carried away to discharge the condensed water atomization device, so that new condensed water mist is formed in the inner cavity, the atomization efficiency in the inner cavity of the condensed water atomization device is improved, and the speed of discharging condensed water from the condensed water atomization device is further improved.
Further, the area of the communication port 55 may be larger than the area of the air inlet 52, so that the air flowing in from the air inlet 52 can be dispersed, and when the dispersed air flows through the inner cavity 51 of the condensate water atomizing device 5, more condensate water mist formed in the inner cavity 51 can be carried away to be discharged out of the condensate water atomizing device 5, so that new condensate water mist is formed in the inner cavity 51, the atomizing efficiency in the inner cavity 51 of the condensate water atomizing device 5 is greatly improved, and the rate of discharging condensate water out of the condensate water atomizing device 5 is further improved.
In a possible embodiment, as shown in fig. 2 to 4, the air flow outlet 53 may be connected to the flue gas outlet 411, so as to be connected to the flue gas pipe of the gas water heating device, and by this structure, the condensed water mist in the inner cavity 51 may be discharged from the flue gas pipe of the gas water heating device after passing through the air flow outlet 53 and the flue gas outlet 411 of the housing 41 in sequence.
In particular, the gas water heating device may comprise an extraction pipe 7. The inlet of the eduction tube 7 is connected with the airflow outlet 53, and the eduction tube 7 outlet is arranged at the flue gas outlet 411 or at a position close to the flue gas outlet 411 in the housing 41.
As shown in fig. 2 to 4, the condensate water atomizing device 5 may include a housing 56 and an atomizing module 57 and a flow guide member 58 provided on the housing 56. Inside the housing 56 is the interior cavity 51. The flow directing channels 54 may be formed within the flow directing member 58. As a possibility, the flow guide member 58 may be provided in the housing 56, the air flow inlet 52 and the air flow outlet 53 are formed in the housing 56, and the communication port 55 is formed in the flow guide member 58 and located in the housing 56, by which means the volume of the condensate atomizing device 5 can be further reduced. As a practical matter, the flow guiding member 58 may be provided outside the housing 56, and the air flow inlet 52 may be formed on the flow guiding member 58, and the air flow outlet 53 and the communication port 55 may be provided on the housing 56. In the above two embodiments, the air flow entering the housing 56 from the air flow inlet 52 flows through the diversion channel 54 in the diversion member 58 and the communication opening 55 in sequence, then enters the housing 56, and carries atomized condensed water mist out from the air flow outlet 53.
An atomizing module 57 is provided on the housing 56 for atomizing the condensed water flowing into the housing 56, thereby forming a mist of the condensed water. For example, the atomizing module 57 may employ an ultrasonic atomizing device to generate water mist, and may include, in principle, single crystal piezoceramics, microporous webs, langevin transducers, etc., and other types of atomizing modules 57 may be employed in the present application without limitation.
As shown in fig. 2, the housing 56 may be provided with a condensate inlet 561, the condensate inlet 561 being in communication with the condensate drain 43, and condensate flowing out of the condensate drain 43 of the casing 41 flowing into the inner chamber 51 of the condensate atomizing device 5 through the condensate inlet 561.
As a practical matter, the direction of the air flow entering the inner chamber 51 through the communication port 55 may be in the range of-45 ° to 45 ° from the liquid level of the inner chamber 51. Through the above angle range, the gas flowing out of the communication port 55 can be directed to the condensate water level of the inner cavity 51, so that the flowing gas passes through the condensate water level or the position above the condensate water level, which is favorable for taking away the condensate water mist formed at the condensate water level, so as to improve the atomization efficiency of the condensate water atomization device 5. Further, the direction of the air flow entering the inner chamber 51 through the communication port 55 is generally toward the liquid surface of the inner chamber 51. Further, the communication port 55 may be disposed generally horizontally such that the flow of air into the interior cavity 51 flows generally horizontally into the interior cavity 51 to cause the flow of air to flow past the fluid level of the interior cavity 51. Through the mode, the condensate water mist vertical horse generated by the liquid level of the inner cavity 51 can be taken away, and the atomization efficiency in the inner cavity 51 of the condensate water atomization device 5 is improved.
As shown in fig. 2 to 4, when the flow guiding member 58 is disposed in the housing 56 or outside the housing 56, the flow guiding member 58 may be disposed on the first side 562 of the housing 56, and the air flow outlet 53 is disposed on the second side 563 of the housing 56 opposite to the first side 562 of the housing 56 or on the top of the housing 56, so that the air flowing out from the communication port 55 passes through as much of the inner cavity 51 inside the housing 56 as possible and then flows out from the air flow outlet 53, so that more condensed water mist formed in the inner cavity 51 can be carried away to the condensed water mist device 5. Wherein the first side 562 of the housing 56 may be the side of the condensate atomizing device 5 adjacent to the second heat exchanger 4, in such a way that the introduction of flue gas in the second heat exchanger 4 or flue gas from the first heat exchanger 2 to be flown into the second heat exchanger 4 into the condensate atomizing device 5 is facilitated for carrying away condensate mist.
When the baffle member 58 is disposed on the first side 562 of the housing 56, the baffle member 58 is formed from a portion of the first side 562 of the housing 56 and the baffle 581 disposed on the first side 562 of the housing 56. In the above manner, the first side 562 of the partial housing 56 can be utilized, so that the material consumption of the diversion component 58 is saved, and the cost of the gas water heating device is reduced. In this embodiment, as a possibility, the guide member 58 may be provided in the housing 56, the guide casing 581 extending downward from the airflow inlet 52, the communication port 55 being provided on the guide member 58, the communication port 55 being formed by a distal end of the guide casing 581 and a guide plate 59 provided at a lower portion of the distal end of the guide casing 581. The pod 581 may be generally inverted-L-shaped with the horizontal portion of the pod 581 positioned above the airflow inlet 52 at the lower end of the vertical portion of the pod 581. As a matter of possibility, the guide plate 59 is disposed in a substantially horizontal direction so that the gas flowing out from the communication port 55 is outputted in a substantially horizontal direction.
In one particular embodiment, as shown in FIGS. 2-4, the housing 56 may include a third side 564 of the housing 56 and a fourth side of the housing 56 connected to and disposed opposite the first side 562 of the housing 56. The third side 564 of the housing 56 and the fourth side of the housing 56 are located in the front-rear direction perpendicular to the paper surface. The airflow inlet 52 is disposed on the first side 562. The air guide sleeve 581 includes a first baffle 5811 disposed above the air inlet 52 and a second baffle 5812 opposite the air inlet 52, and the first baffle 5811, the second baffle 5812, the third side 564 of the portion of the housing 56, and the fourth side of the portion of the housing 56 enclose to form the air guide sleeve 581. In this way, the distance between the diversion passage 54 and the communication opening 55 in the direction perpendicular to the paper surface can be maximized, thereby increasing the cross-sectional areas of the diversion passage 54, the communication opening 55 in the gas flow direction.
In order to make the area of the communication port 55 larger than the area of the air flow inlet 52 to disperse the air flow flowing in from the air flow inlet 52, in one embodiment, the length of the communication port 55 may be made longer than the length of the air flow inlet 52, that is, the length of the communication port 55 in the direction perpendicular to the paper surface may be made longer than the length of the air flow inlet 52 in the direction perpendicular to the paper surface. In another embodiment, the communication port 55 may be a plurality of openings arranged substantially horizontally, and the total length of the plurality of openings is greater than the length of the airflow inlet 52.
In one possible embodiment, as shown in fig. 2 to 4, the communication port 55 may be flat, and the width of the communication port 55 may be less than 30mm. The width of the communication port 55 is the distance of the communication port 55 in the vertical direction. Through setting up the shape to the communication port 55 on the basis of guaranteeing the length of communication port 55 in the direction of perpendicular to paper, can promote the velocity of flow of the gaseous in the horizontal direction of communication port 55 output to gaseous as much as possible flows through the inner chamber 51 of comdenstion water atomizing device 5 in the horizontal direction, because comdenstion water mist in the inner chamber 51 of comdenstion water atomizing device 5 all is formed in comdenstion water horizontally surface department, can carry away the comdenstion water mist that forms on the comdenstion water surface of more inner chamber 51 like this and discharge comdenstion water atomizing device 5.
In order to enable the gas flowing in from the gas inlet 52 to be sufficiently dispersed and flow out from the communication port 55 into the inner cavity 51, the gas water heating device may include a slow flow cavity 541, and the gas flowing in from the gas inlet 52 is dispersed and flows into the housing 56 through the communication port 55 after passing through the slow flow cavity 541. Further, the air flow entering from the air flow inlet 52 passes through the slow flow cavity 541 and then uniformly enters the housing 56 through the communication port 55. The inlet and outlet of the slow flow cavity 541 are respectively connected with the air flow inlet 52 and the communication port 55 so as to realize communication.
When the atomizing module 57 is an ultrasonic atomizing device, the ultrasonic atomizing device has a preset liquid level range for efficient atomization. When the condensed water in the ultrasonic atomization device is in the preset liquid level range of the efficient atomization, the ultrasonic atomization device can atomize the condensed water relatively efficiently to form condensed water mist. The atomization module 57 includes a first liquid level detection device, where a first detection position of the first liquid level detection device is located within a preset liquid level range, and may be used to detect whether a liquid level of condensed water in the atomization module 57 is located within a preset liquid level range for efficient atomization, so as to control power of the atomization module 57, so that the liquid level of the condensed water in the atomization module 57 is located at or below the first detection position of the first liquid level detection device as much as possible.
For example, the gas water heating device may include a controller. The controller is electrically connected with the first detection device and the ultrasonic atomization device. When the first detection means detects that the liquid level in the inner cavity 51 reaches the first detection position, the controller increases the power of the ultrasonic atomizing means.
In the above embodiment, the lowest point of the communication port 55 may be higher than the first detection position, and the distance between the lowest point of the communication port 55 and the first detection position is less than 30mm. Through the above mode, the gas flowing out of the communication port 55 can flow through the horizontal plane of the condensed water as much as possible, so that the gas takes away the condensed water mist formed at the horizontal plane of the condensed water as much as possible, the ultrasonic atomization device is facilitated to form new condensed water mist at the horizontal plane of the condensed water, and the atomization efficiency of the ultrasonic atomization device is greatly improved. Even when the level of the condensed water in the atomizing module 57 is higher than the communication port 55, the condensed water flowing in from the air flow inlet 52 can be pressed out of the communication port 55 from the communication port 55 to the flow guide passage 54 when the air flow flowing in from the air flow inlet 52 passes through the flow guide passage 54, and the air flow can be dispersed to flow into the inner chamber 51 through the communication port 55.
In order to prevent condensed water in the inner chamber 51 from flowing backward to the first heat exchanger 2 and/or the second heat exchanger 4 against the flow direction of the gas through the gas flow inlet 52, the height of the gas flow inlet 52 may be higher than the height of the communication port 55, affecting the normal heat exchange of the first heat exchanger 2 and/or the second heat exchanger 4.
The air flow flowing into the condensate water atomizer 5 from the air flow inlet 52 may be the flue gas outputted after heat exchange by the first heat exchanger 2, where the air flow inlet 52 may be in communication with the vicinity of the flue gas inlet of the housing 41, or may be the flue gas after at least partial heat exchange by the second heat exchanger 4, where the air flow inlet 52 is in communication with the interior of the housing 41, or may be the flue gas outputted after heat exchange by the second heat exchanger 4, which is not aligned in any way in the present application.
In a specific embodiment, as shown in fig. 2 to 4, the gas water heating device may comprise an introduction pipe 6. The inlet of the inlet pipe 6 is arranged at a position inside the housing 41 or near the flue gas inlet of the housing 41, and the outlet of the inlet pipe 6 is connected with the gas flow inlet 52. In this way, the flue gas after heat exchange in the second heat exchanger 4 or the flue gas after heat exchange in the first heat exchanger 2 can be directly led to the air flow inlet 52 through the introducing pipe 6, so that after that, the flue gas entering the air flow inlet 52 through the introducing pipe 6 does not exchange heat with water to be heated flowing through the second heat exchanger 4 or only exchanges a small amount of heat with water to be heated flowing through the second heat exchanger 4, compared with the flue gas completely exchanging heat through the second heat exchanger 4, the flue gas entering the air flow inlet 52 through the introducing pipe 6 can keep a relatively high temperature, so that when the flue gas enters the inner cavity 51, the condensed water mist in the inner cavity 51 can be prevented from being converted into liquid drops again due to low temperature, and the condensed water mist formed in the inner cavity 51 can not be carried by the flue gas to be discharged out of the condensed water atomization device 5.
In one embodiment, the diversion channel 54 may include a slow flow cavity 541, the cross-sectional area of the slow flow cavity 541 being larger than the area of the gas flow inlet 52 in the direction of gas flow. The slow flow cavity 541 can reduce the flow rate of the gas, and achieve the effect of stabilizing the flow and equalizing the air, so that the gas enters the inner cavity 51 through the communication port 55 at a lower flow rate and stable and equalized flow. For the gas water heater, the power of the fan 3 is mainly adjusted by matching with the combustion power of the gas water heater. For the condensate atomizing device, the driving force of the gas entering the inlet pipe 6 is provided by the fan 3, so that the flow rate of the gas is determined by the fan 3, and the power of the fan 3 is too high for taking away condensate mist in the inner cavity of the condensate atomizing device due to the fact that the flow rate of the gas entering the inlet pipe 6 is too high in cooperation with the combustion power of the gas water heating device, so that the slow flow cavity 541 is required to be arranged for reducing and controlling the flow rate of the gas, and the input inner cavity 51 for dispersing the gas can be prepared at the same time of reducing the speed.
As a practical matter, the inlet of the fan 3 may be in communication with the flue gas outlet of the first heat exchanger 2, and the outlet of the fan 3 is in communication with the flue gas inlet of the second heat exchanger 4. When the fan 3 is arranged between the flue gas outlet of the first heat exchanger 2 and the flue gas inlet of the second heat exchanger 4, the fan 3 can ensure the speed of flue gas flowing through the first heat exchanger 2 and the speed of flue gas flowing through the second heat exchanger 4 simultaneously relative to the upstream of the combustion device 1, in addition, the flue gas can be ensured to enter the inlet pipe 6 at a relatively high enough flow rate, so that enough flue gas flow is ensured to enter the condensate water atomization device 5, and the condensate water mist formed in more inner cavities 51 is facilitated to be carried away to be discharged out of the condensate water atomization device 5. All articles and references, including patent applications and publications, disclosed herein are incorporated by reference for all purposes. The term "consisting essentially of" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not substantially affect the essential novel features of the combination. The use of the terms "comprises" or "comprising" to describe combinations of elements, components, or steps herein also contemplates embodiments consisting essentially of such elements, components, or steps. By using the term "may" herein, it is intended that any attribute described as "may" be included is optional. Multiple elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, component, section or step is not intended to exclude other elements, components, sections or steps.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other. The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.
Claims (25)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202520962039.5U CN224188773U (en) | 2025-05-15 | 2025-05-15 | Gas-fired hot water unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202520962039.5U CN224188773U (en) | 2025-05-15 | 2025-05-15 | Gas-fired hot water unit |
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