CN215490313U - Gas heating water heater - Google Patents
Gas heating water heater Download PDFInfo
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- CN215490313U CN215490313U CN202121098873.2U CN202121098873U CN215490313U CN 215490313 U CN215490313 U CN 215490313U CN 202121098873 U CN202121098873 U CN 202121098873U CN 215490313 U CN215490313 U CN 215490313U
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Abstract
The utility model discloses a gas heating water heater, which comprises a water heater body, a main heat exchanger arranged on the water heater body, a burner for heating the main heat exchanger, a plate heat exchanger, a two-channel condensation heat exchanger, a heating pipeline and a bathroom pipeline, wherein a first channel and a second channel which are not communicated with each other are arranged in the two-channel condensation heat exchanger; the heating return water end of the heating pipeline is sequentially communicated with the first ports of the first channel, the main heat exchanger and the three-way valve, the second port of the three-way valve is connected with the heating water outlet end of the heating pipeline, the third port of the three-way valve is sequentially communicated with the plate heat exchanger and the heating return water end of the heating pipeline, and the bathroom water inlet end of the bathroom pipeline is sequentially connected with the bathroom water outlet end of the bathroom pipeline through the second channel and the plate heat exchanger. The utility model enables the lower-temperature bathroom water to participate in condensation heat exchange, and improves the heat efficiency of the double-channel condensation heat exchanger in a bathroom state.
Description
Technical Field
The utility model belongs to the technical field of water heaters, and particularly relates to a gas heating water heater.
Background
The gas heating water heater relies on gas to provide heating hot water and bathing hot water heat. And a secondary condensation heat exchanger is added to the condensation type wall-mounted boiler to recover the waste heat of the flue gas after heat exchange. Most condensing wall hanging furnaces in the current stage are connected with heating backwater, so that the heat efficiency can be improved, but the heating backwater temperature is higher in the bathroom state, and the heat efficiency of the condensing heat exchanger is lower in the bathroom state. The Chinese patent application, publication number is: CN104654583B discloses a gas heating water heater, which comprises: the system comprises a double-channel main heat exchanger, a plate type heat exchanger, a condensing heat exchanger, a heating pipeline and a bathing pipeline; the heating pipeline is connected with a water outlet of the heating pipeline sequentially through the condensing heat exchanger, the main heat exchanger and the three-way valve, and the other end of the three-way valve is connected with a water return port of the heating pipeline through the plate heat exchanger; the double-channel main heat exchanger is of a double-inlet and double-outlet sleeve structure, and the bathing pipeline is connected with a water outlet of the bathing pipeline sequentially through the plate heat exchanger and the double-channel main heat exchanger. In this technical scheme, under the bathroom mode, the bathroom water carries out the heat transfer back through plate heat exchanger, then carries out the heat transfer through the condensation heat exchanger again, because the bathroom water risees at the in-process temperature with the plate heat exchanger heat transfer, the higher bathroom water of temperature carries out the in-process of heat transfer with the condensation heat exchanger, can not fully reduce the temperature of condensation heat exchanger, can't promote the thermal efficiency of condensation heat exchanger.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that in the prior art, the structure of a gas heating water heater causes lower-temperature bathroom water not to participate in condensation heat exchange, so that the heat efficiency of a condensation heat exchanger in a bathroom state is low, and provides the gas heating water heater.
In order to solve the technical problems, the utility model adopts the technical scheme that: a gas heating water heater comprises a water heater body, a main heat exchanger arranged on the water heater body, a burner for heating the main heat exchanger, a plate heat exchanger, a double-channel condensation heat exchanger, a heating pipeline and a bathroom pipeline, wherein a first channel and a second channel which are not communicated with each other are arranged in the double-channel condensation heat exchanger; the heating return water end of the heating pipeline is sequentially communicated with the first ports of the first channel, the main heat exchanger and the three-way valve, the second port of the three-way valve is connected with the heating water outlet end of the heating pipeline, the third port of the three-way valve is sequentially communicated with the plate heat exchanger and the heating return water end of the heating pipeline, and the bathroom water inlet end of the bathroom pipeline is sequentially connected with the bathroom water outlet end of the bathroom pipeline through the second channel and the plate heat exchanger.
In one embodiment, the second channel is nested within the first channel.
In one embodiment, the first channel is provided with a first channel liquid inlet and a first channel liquid outlet; the second channel is provided with a second channel liquid inlet and a second channel liquid outlet, the second channel liquid outlet is close to the first channel liquid inlet, and the second channel liquid outlet is far away from the first channel liquid outlet.
In one embodiment, the first channel liquid inlet and the first channel liquid outlet are positioned on one side of the double-channel condensation heat exchanger; and the second channel liquid inlet and the second channel liquid outlet are positioned on the other side of the double-channel condensation heat exchanger.
In one embodiment, the outer periphery of the first channel is provided with fins.
In one embodiment, a memory metal one-way valve is arranged on the sanitary pipeline.
In one embodiment, the memory metal one-way valve is connected to a sanitary water inlet end of a sanitary pipeline and the sanitary pipeline between the two-channel condensation heat exchanger and the plate heat exchanger.
In one embodiment, the system further comprises a fan for blowing the flue gas generated after combustion to the double-channel condensation heat exchanger.
In one embodiment, the system further comprises a water pump for conveying the heating backwater into the double-channel condensation heat exchanger.
In one embodiment, the water pump is disposed on the heating conduit proximate the dual path condensing heat exchanger.
Compared with the background technology, the gas heating water heater of the utility model has the following technical effects: in the bathroom mode, external cold water flows into a second channel of the double-channel condensation heat exchanger from a bathroom water inlet end of a bathroom pipeline and exchanges heat with the double-channel condensation heat exchanger; the heat-exchanged bathroom water and the plate heat exchanger carry out secondary heat exchange and then flow out through a bathroom water outlet end of a bathroom pipeline. Because external cold water temperature is lower, it directly carries out the heat transfer through the first passageway in second passageway and the binary channels condensation heat exchanger, can reduce the temperature of binary channels condensation heat exchanger fast, makes it absorb the heat in the flue gas better, lets the better participation condensation heat transfer of second passageway, strengthens binary channels condensation heat exchanger's heat transfer effect, promotes the heat exchange efficiency of complete machine, shortens the heat duration of bathroom water.
Drawings
FIG. 1 is a schematic structural view of a gas heating water heater according to the present invention;
fig. 2 is a schematic structural view of a two-channel condensing heat exchanger in the gas heating water heater of the present invention.
In the drawings: 1. a primary heat exchanger; 2. a burner; 3. a plate heat exchanger; 4. a two-channel condensing heat exchanger; 5. a heating pipe; 6. a sanitary pipeline; 7. a three-way valve; 8. a memory metal check valve; 9. a fan; 10. a water pump; 41. a first channel; 42. a second channel; 43. a fin; 51. heating and water returning ends; 52. a heating water outlet end; 61. a bathroom water inlet end; 62. a bathroom water outlet end; 411. a first channel liquid inlet; 412. a first passage outlet; 421. a second channel liquid inlet; 422. and a second channel liquid outlet.
Detailed Description
As shown in fig. 1 to 2, a gas-fired water heater includes a water heater body, a main heat exchanger 1 disposed on the water heater body, a burner 2 for heating the main heat exchanger 1, a plate heat exchanger 3, a dual-channel condensing heat exchanger 4, a heating pipeline 5 and a sanitary pipeline 6, wherein the dual-channel condensing heat exchanger 4 is provided with a first channel 41 and a second channel 42 which are not communicated with each other; the heating return water end 51 of the heating pipeline 5 is sequentially communicated with the first channel 41, the main heat exchanger 1 and the first port of the three-way valve 7, the second port of the three-way valve 7 is connected with the heating outlet water end 52 of the heating pipeline 5, the third port of the three-way valve 7 is sequentially communicated with the plate heat exchanger 3 and the heating return water end 51 of the heating pipeline 5, and the bathroom water inlet end 61 of the bathroom pipeline 6 is sequentially connected with the bathroom water outlet end 62 of the bathroom pipeline 6 through the second channel 42 and the plate heat exchanger 3. It should be noted that the bathroom water inlet end 61 of the bathroom pipeline 6 is connected with the bathroom water outlet end 62 of the bathroom pipeline 6 sequentially through the second channel 42 and the plate heat exchanger 3 to form a bathroom flow channel; a heating return water end 51 of the heating pipeline 5 is connected with a heating water outlet end 52 of the heating pipeline 5 sequentially through the first channel 41, the main heat exchanger 1 and the three-way valve 7 to form a heating large circulation flow channel; and a third port of the three-way valve 7 is connected with a heating return water end 51 of the heating pipeline 5 through the plate heat exchanger 3 to form a heating small circulation flow passage. In the embodiment, in the bathroom mode, the external cold water flows into the second channel 42 of the dual-channel condensation heat exchanger 4 from the bathroom water inlet end 61 of the bathroom pipeline 6 and exchanges heat with the dual-channel condensation heat exchanger 4; the heat exchanged bathroom water exchanges heat with the plate heat exchanger 3 for the second time and then flows out through the bathroom water outlet end 62 of the bathroom pipeline 6. Because external cold water temperature is lower, it directly carries out the heat transfer through second passageway 42 and the first passageway 41 in the binary channels condensation heat exchanger 4, can reduce binary channels condensation heat exchanger 4's temperature fast, makes it absorb the heat in the flue gas better, lets the better participation condensation heat transfer of second passageway 42, strengthens binary channels condensation heat exchanger 4's heat transfer effect, promotes the heat exchange efficiency of complete machine, shortens the heat time of bathroom water. In addition, the bathroom water does not pass through the main heat exchanger 1, and the risk of scaling of the main heat exchanger 1 is reduced.
In one embodiment, the second channel 42 is disposed in the first channel 41. Therefore, the contact area of the heating backwater in the second channel 42 and the first channel 41 can be increased, and the heat exchange effect between the first channel 41 and the second channel 42 is improved.
In one embodiment, the first channel 41 is provided with a first channel inlet 411, a first channel outlet 412; the second channel 42 is provided with a second channel liquid inlet 421 and a second channel liquid outlet 422, the second channel liquid outlet 422 is close to the first channel liquid inlet 411, and the second channel liquid outlet 422 is far away from the first channel liquid outlet 412. Therefore, heating backwater flows in from the first channel liquid inlet 411 and flows out from the first channel liquid outlet 412, bathroom water flows in from the second channel liquid inlet 421 and flows out from the second channel liquid outlet 422, the flow direction of the heating backwater is opposite to that of the bathroom water, and heat exchange between the second channel 42 and the first channel 41 is facilitated.
In one embodiment, the first channel liquid inlet 411 and the first channel liquid outlet 412 are located on one side of the two-channel condensation heat exchanger 4; the second channel liquid inlet 421 and the second channel liquid outlet 422 are located on the other side of the two-channel condensation heat exchanger 4. The design structure is simple, the internal resistance of the double-channel condensation heat exchanger 4 is reduced, the process is simple, and the cost is saved.
In one embodiment, the outer periphery of the first channel 41 is provided with fins 43. Therefore, the contact area of the fins 43 and the flue gas can be increased, and the heat exchange effect of the first channel 41 and the flue gas is improved.
In one embodiment, a memory metal check valve 8 is disposed on the sanitary pipe 6. In this embodiment, the memory metal check valve 8 can be opened after the water temperature in part of the sanitary pipeline 6 exceeds a certain temperature, so as to prevent the sanitary pipeline 6 from being damaged due to the overhigh water temperature in the sanitary pipeline 6.
In one embodiment, the memory metal check valve 8 is connected to the sanitary water inlet end 61 of the sanitary pipe 6, the sanitary pipe 6 between the two-channel condensation heat exchanger 4 and the plate heat exchanger 3. Specifically, under the heating mode, plate heat exchanger 3 lasts and carries out the heat transfer with bathroom water for the bathroom water temperature in the bathroom pipeline 6 between plate heat exchanger 3 and the binary channels condensation heat exchanger 4 is too high, and memory metal check valve 8 is opened this moment, makes the bathroom water of high temperature can carry out the heat transfer with the low temperature bathroom water in the bathroom intake end 61, thereby reduces the bathroom water temperature in the bathroom pipeline 6 between plate heat exchanger 3 and the binary channels condensation heat exchanger 4.
In one embodiment, the system further comprises a fan 9 for blowing the flue gas generated after combustion to the double-channel condensation heat exchanger 4. In this embodiment, fan 9 is favorable to leading the flue gas to binary channels condensation heat exchanger 4 in, strengthens flue gas and bi-pass pipeline condensation heat exchanger's heat transfer effect.
In one embodiment, the system further comprises a water pump 10 for conveying heating return water into the double-channel condensation heat exchanger 4. The water pump 10 facilitates the delivery of heating return water into the two-channel condensing heat exchanger 4.
In one embodiment, the water pump 10 is disposed on the heating conduit 5 proximate to the dual path condensing heat exchanger 4.
The working principle is as follows:
a bathroom mode: the three-way valve 7 is communicated with the plate heat exchanger 3, and heating backwater circularly flows through a circulating pipeline formed by a heating backwater end 51 of the heating pipeline 5, a first channel 41 of the double-channel condensation heat exchanger 4, the main heat exchanger 1 and the three-way valve 7; the external cold water flows into the second channel 42 of the two-channel condensation heat exchanger 4 from the bathroom water inlet end 61 of the bathroom pipeline 6 and exchanges heat with the first channel 41 of the two-channel condensation heat exchanger 4; the heat exchanged bathroom water exchanges heat with the plate heat exchanger 3 for the second time and then flows out through the bathroom water outlet end 62 of the bathroom pipeline 6.
Heating mode: the three-way valve 7 is communicated with a heating water outlet end 52 of the heating pipeline 5, and heating return water circularly flows through a circulating pipeline formed by the heating return water end 51 of the heating pipeline 5, the first channel 41 of the two-channel condensation heat exchanger 4, the main heat exchanger 1, the three-way valve 7 and an external heater.
In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A gas heating water heater is characterized in that: the water heater comprises a water heater body, a main heat exchanger (1) arranged on the water heater body, a burner (2) used for heating the main heat exchanger (1), a plate type heat exchanger (3), a double-channel condensation heat exchanger (4), a heating pipeline (5) and a bathroom pipeline (6), wherein a first channel (41) and a second channel (42) which are not communicated with each other are arranged in the double-channel condensation heat exchanger (4); a heating backwater end (51) of the heating pipeline (5) is sequentially communicated with a first channel (41), the main heat exchanger (1) and a first port of a three-way valve (7), a second port of the three-way valve (7) is connected with a heating water outlet end (52) of the heating pipeline (5), and a third port of the three-way valve (7) is sequentially communicated with the plate heat exchanger (3) and the heating backwater end (51) of the heating pipeline (5); the bathroom water inlet end (61) of the bathroom pipeline (6) is connected with the bathroom water outlet end (62) of the bathroom pipeline (6) through the second channel (42) and the plate heat exchanger (3) in sequence.
2. The gas-fired heating water heater according to claim 1, wherein: the second channel (42) is sleeved in the first channel (41).
3. The gas-fired heating water heater according to claim 2, wherein: the first channel (41) is provided with a first channel liquid inlet (411) and a first channel liquid outlet (412); the second channel (42) is provided with a second channel liquid inlet (421) and a second channel liquid outlet (422), the second channel liquid outlet (422) is close to the first channel liquid inlet (411), and the second channel liquid outlet (422) is far away from the first channel liquid outlet (412).
4. The gas-fired heating water heater according to claim 3, wherein: the first channel liquid inlet (411) and the first channel liquid outlet (412) are positioned at one side of the double-channel condensation heat exchanger (4); and the second channel liquid inlet (421) and the second channel liquid outlet (422) are positioned on the other side of the double-channel condensation heat exchanger (4).
5. The gas-fired heating water heater according to claim 2, wherein: the outer periphery of the first channel (41) is provided with fins (43).
6. The gas-fired heating water heater according to claim 1, wherein: and a memory metal one-way valve (8) is arranged on the bathroom pipeline (6).
7. The gas-fired heating water heater according to claim 6, wherein: the memory metal one-way valve (8) is connected to a bathroom water inlet end (61) of the bathroom pipeline (6), and the bathroom pipeline (6) between the double-channel condensation heat exchanger (4) and the plate type heat exchanger (3).
8. The gas-fired heating water heater according to claim 1, wherein: the device also comprises a fan (9) used for blowing the flue gas generated after combustion to the double-channel condensation heat exchanger (4).
9. The gas-fired heating water heater according to claim 1, wherein: the system also comprises a water pump (10) used for conveying the heating backwater to the double-channel condensation heat exchanger (4).
10. The gas-fired heating water heater according to claim 9, wherein: the water pump (10) is arranged on the heating pipeline (5) and close to the double-channel condensation heat exchanger (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121098873.2U CN215490313U (en) | 2021-05-20 | 2021-05-20 | Gas heating water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121098873.2U CN215490313U (en) | 2021-05-20 | 2021-05-20 | Gas heating water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215490313U true CN215490313U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121098873.2U Active CN215490313U (en) | 2021-05-20 | 2021-05-20 | Gas heating water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215490313U (en) |
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2021
- 2021-05-20 CN CN202121098873.2U patent/CN215490313U/en active Active
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