CN215637503U - Gas wall-mounted furnace suitable for linkage solar heating - Google Patents

Gas wall-mounted furnace suitable for linkage solar heating Download PDF

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Publication number
CN215637503U
CN215637503U CN202122263640.XU CN202122263640U CN215637503U CN 215637503 U CN215637503 U CN 215637503U CN 202122263640 U CN202122263640 U CN 202122263640U CN 215637503 U CN215637503 U CN 215637503U
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heating
heat exchanger
solar
water
water pipe
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CN202122263640.XU
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徐立
赵曼
霍志敏
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Beijing Kd Navien Thermal Equipment Co ltd
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Beijing Kd Navien Thermal Equipment Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

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Abstract

The application relates to a gas wall-mounted boiler suitable for linkage solar heating, which comprises a wall-mounted boiler shell, a gas heating component and a heating water pipe, wherein the gas heating component and the heating water pipe are arranged in the wall-mounted boiler shell; the gas heating assembly comprises a burner fire row for providing heat and a main heat exchanger for heating water, a heating water pipe is connected with the main heat exchanger, and a circulating water pump is arranged on the heating water pipe; the solar heating system further comprises a solar heat exchanger, the solar heat exchanger and the main heat exchanger are connected in series on the heating water pipe, and heat energy input by the solar heat exchanger is provided by the solar heating device. The water-saving and environment-friendly water-saving device has the effects of energy conservation, environmental protection, adjustability, high safety performance, large flow of a water path system, small resistance and convenience in maintenance.

Description

Gas wall-mounted furnace suitable for linkage solar heating
Technical Field
The application relates to the field of heating devices, in particular to a gas wall-mounted furnace suitable for linkage solar heating.
Background
In human life, in order to suit life and living in a room in a cold season in winter, a heating system is installed in the room to heat domestic water and heat the room.
With the popularization of solar water heaters, people have been used to adopt solar water heaters to heat water through solar heating devices to provide domestic hot water; gas wall-mounted boilers are also used to provide domestic hot water and heating water.
However, the wall-mounted gas boiler is used alone to provide domestic hot water and heating, a large amount of natural gas is consumed, the operation cost is high, and the natural gas is also non-renewable energy; when the energy provided by the solar heating device is used independently for domestic hot water and heating, the solar energy is influenced by weather conditions, the area of the heat collector and the like, so that the heating heat provided by the solar energy is unstable.
SUMMERY OF THE UTILITY MODEL
In order to further reduce the running cost of life hot water and heating, energy saving and emission reduction, the application provides a gas hanging stove suitable for linkage solar heating.
A gas wall-mounted furnace suitable for linkage solar heating comprises a wall-mounted furnace shell, a gas heating component and a heating water pipe, wherein the gas heating component and the heating water pipe are arranged in the wall-mounted furnace shell; the gas heating assembly comprises a burner fire row for providing heat and a main heat exchanger for heating water, a heating water pipe is connected with the main heat exchanger, and a circulating water pump is arranged on the heating water pipe; the solar heating system further comprises a solar heat exchanger, the solar heat exchanger and the main heat exchanger are connected in series on the heating water pipe, and heat energy input by the solar heat exchanger is provided by the solar heating device.
By adopting the technical scheme, when the heating efficiency of the solar heating device is better, the heating water in the heating water pipe is subjected to heat exchange heating through the solar heat exchanger, the heating water is heated by utilizing renewable energy sources, the solar heating function is realized, the solar heating device is fully utilized besides the domestic water, the consumption of natural gas is reduced, and the heating is more energy-saving and environment-friendly; when the solar heating device cannot provide heat for the solar heat exchanger any more under the influence of the environment, such as cloudy days or after sunset, heating water is heated by natural gas through the main heat exchanger, so that the heating function of the wall-mounted boiler mechanism is realized, and the heating water keeps higher temperature and heating function; the heated heating water circulates in the indoor heating water pipe through the circulating water pump.
Optionally, the solar heat exchanger is a plate heat exchanger.
By adopting the technical scheme, the hot water output by the solar heating device is subjected to plate heat exchange and heating on the heating water through the solar heat exchanger, and the heat exchange is carried out in a cross convection mode, so that the heat exchange efficiency is higher; meanwhile, in the plate heat exchanger, a water loop of the solar heating device and a heating water system are mutually independent, so that the influence of water scale and impurities in the solar heating device on a wall-mounted furnace system can be isolated; and the maintenance and repair in the future are more convenient.
Optionally, the solar heat exchanger is located downstream of the main heat exchanger on the heating water pipe.
Through adopting above-mentioned technical scheme, solar heat exchanger is located main heat exchanger's low reaches to the heating water after making the heating of output in the solar heat exchanger is difficult for making main heat exchanger overheated.
Optionally, a second heating water temperature sensor is arranged on the passage of the heating water pipe and at the downstream of the solar heat exchanger.
Through adopting above-mentioned technical scheme, the second heating goes out the water temperature sensor and carries out the temperature-sensing to the heating water of following hanging stove mechanism output, makes the customer see the temperature of heating water more directly perceivedly to adjust by oneself.
Optionally, a water replenishing assembly is arranged on the passage of the heating water pipe and located at the upstream of the solar heat exchanger.
Through adopting above-mentioned technical scheme, under the not enough condition of heating water, in time carry out the moisturizing through the moisturizing subassembly, make the water yield in the heating water system sufficient, make the heating efficiency of heating water higher, can also reduce because the probability of the too little accident that produces of water yield.
Optionally, the heating water pipe is further connected with an expansion water tank in a branch way, and the expansion water tank is located at the upstream of the main heat exchanger.
Through adopting above-mentioned technical scheme, when the total water pressure of heating water pipe is great, water pressure makes heating water get into expansion tank, and expansion tank makes heating water system's water pressure be difficult for too high through the partial pressure to water pressure, makes heating water system more stable.
Optionally, a pressure relief valve is further arranged on the heating water pipe, and the pressure relief valve is arranged on the upstream of the expansion water tank.
Through adopting above-mentioned technical scheme, when the water pressure in the heating water pipe is great, great water pressure opens the relief valve automatically, makes the water in the heating water system let out to reduce water pressure, improve the smooth degree of heating water system operation.
Optionally, the circulating water pump is arranged at the upstream of the main heat exchanger, a branch communicated with the circulating water pump is arranged at the downstream of the solar heat exchanger of the heating water pipe, and a bypass valve is arranged on the branch.
By adopting the technical scheme, the communication of the control branch is adjusted in a self-adaptive manner through the bypass valve, when the differential pressure of the heating water pipe on two sides of the bypass valve is large, the bypass valve can be opened by the acting force generated by the differential pressure to form a loop from the circulating water pump to the solar heat exchanger through the main heat exchanger, so that the normal operation of each function can be more effectively maintained when the wall-mounted boiler mechanism is blocked or not smooth in circulation; the system flow resistance in the heating water pipe can be dispersed, so that the heating water channel is optimized, and the flow of the heating water system is ensured.
Optionally, a superheat detector is provided in the heating water pipe downstream of the main heat exchanger.
Through adopting above-mentioned technical scheme, through the detection of overheated detector to the heating temperature, when the heating temperature surpassed safe upper limit value, can the automatic shutdown combustor fire arrange, make main heat exchanger suspend the heating, reduce because the overheated potential safety hazard that produces of heating water.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the heating water is heated by utilizing renewable energy sources, so that the solar heating function is realized, and the solar heating device is fully utilized besides the domestic water, so that the consumption of natural gas is reduced, and the heating is more energy-saving and environment-friendly;
2. the solar heat exchange device is arranged as a plate heat exchanger, and heat exchange is carried out in a cross convection mode, so that the heat exchange efficiency is higher, the influence of water scales and impurities in the solar heating device on a wall-mounted furnace system can be isolated, and the later maintenance and repair are more convenient;
3. through setting up the bypass valve, the intercommunication of self-adaptation control branch road under the effect of heating water pressure difference makes hanging stove mechanism when the circulation is not smooth, can keep the normal function of each function better, can also disperse the system flow resistance in the heating water pipe, makes the heating water route optimize more, makes heating water system's flow obtain the guarantee.
Drawings
Fig. 1 is a water path structure diagram of a solar heat exchanger of a gas wall-mounted boiler suitable for linkage solar heating;
fig. 2 is a schematic structural view of a gas wall-mounted boiler suitable for linkage solar heating.
Description of reference numerals: 1. a wall-mounted boiler mechanism; 11. a wall-hanging oven housing; 12. a gas fired heating assembly; 121. a heat-preserving cover; 122. fire discharging of a burner; 1221. a gas valve; 123. an igniter; 1231. a flame sensor; 124. a main heat exchanger; 1241. a first heating water temperature sensor; 125. a fan; 1251. a wind pressure switch; 13. a heating water pipe; 131. an overheat detector; 132. a second heating water temperature sensor; 133. a bypass valve; 134. a water circulating pump; 135. a pressure relief valve; 136. a pressure gauge; 14. an expansion tank; 15. a water replenishing assembly; 151. a tap water replenishing pipe; 152. a water pressure switch; 16. a solar heat exchanger; 161. a solar water inlet; 162. a solar water outlet; 163. a heating water inlet; 164. and a heating water outlet.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses be suitable for linkage solar heating's gas hanging stove. Referring to fig. 1 and 2, a wall-hanging gas stove suitable for solar heating, hereinafter referred to as a wall-hanging stove mechanism 1, includes a wall-hanging stove housing 11 serving as an installation housing, a gas heating component 12 for heating water, a heating water pipe 13 for heating and supplying water, an expansion water tank 14 for balancing water pressure, a water replenishing component 15 for replenishing heating water, and a solar heat exchanger 16 for solar heating water.
The gas heating assembly 12 includes a heat-insulating cover 121 for heat insulation and heat insulation, a burner fire row 122 for converting combustion of natural gas into heat energy, an igniter 123 for igniting the burner fire row 122, a main heat exchanger 124 for heating water, and a fan 125 for exhausting air inside the heat-insulating cover 121.
The heat-insulating cover 121 is of a lower opening structure and covers the burner fire grate 122 and the main heat exchanger 124, and the heat-insulating cover 121 is fixedly connected with the wall-hanging furnace shell 11; the main heat exchanger 124 is installed in series on the heating water pipe 13 so that the heating water flows through and is heated by the main heat exchanger 124; the burner fire row 122 is provided at a lower side of the main heat exchanger 124, and heats heating water flowing through the main heat exchanger 124 using heat generated by combustion.
The igniter 123 is fixed on the inner side of the heat insulation cover 121, and the igniter 123 is arranged towards the burner fire row 122; a gas valve 1221 for controlling natural gas is arranged at the lower side of the burner fire bank 122, and a flame sensor 1231 is arranged at the upper side of the igniter 123, so that potential safety hazards are reduced; a first heating water temperature sensor 1241 is installed at a water outlet of the main heat exchanger 124 to detect the temperature of the heating water flowing out of the main heat exchanger 124, so that a user can more intuitively observe the temperature of the heating water when the gas heating assembly 12 heats the heating water.
The first heating outlet water temperature sensor 1241 senses the temperature of the heating water output from the main heat exchanger 124, and adjusts the size of the flame of the burner fire row 122 according to the water temperature, thereby adjusting the heating efficiency of the main heat exchanger 124; when the water temperature is detected to be low, the flame size of the burner fire row 122 is increased by adjusting the gas valve 1221, so that the heating efficiency of the main heat exchanger 124 is improved; when the water temperature is detected to be high, the flow rate of the gas valve 1221 is appropriately reduced, thereby reducing the heating efficiency of the main heat exchanger 124.
Preferably, the heating water pipe 13 is provided with the overheat detector 131 at the downstream of the main heat exchanger 124, and the overheat detector 131 detects the heating water temperature, so that when the heating water temperature exceeds the safety upper limit value, the gas valve 1221 can be automatically closed, the burner fire grate 122 is turned off, and the main heat exchanger 124 is suspended for heating, so that the temperature of the heating water is reduced, the temperature of the heating water is reduced to a safety range, and the potential safety hazard caused by overheating of the heating water is reduced.
The fan 125 is arranged at the top of the heat-insulating cover 121, and the fan 125 cools the surface temperature of the main heat exchanger 124 and reduces the expansion of hot air in the wall-hanging stove shell 11; an air outlet pipe of the fan 125 extends out of the hanging stove shell 11 from the top of the heat preservation cover 121.
In order to adjust the operation efficiency of the fan 125 more intelligently, the fan 125 is further provided with a wind pressure switch 1251, and the wind pressure switch 1251 is fixedly installed on the upper side of the heat-insulating cover 121. When the air outlet channel of the fan 125 is blocked or not smooth, the wind pressure switch 1251 detects that the wind pressure is large, so as to close the burner fire row 122, thereby reducing the potential safety hazard caused by the large wind pressure.
A circulation water pump 134 for circulating heating water in the heating water pipe 13 is installed on the heating water pipe 13. The solar heat exchanger 16 is installed on the heating water pipe 13 in series with the main heat exchanger 124, and the solar heat exchanger 16 is located downstream of the main heat exchanger 124, so that the main heat exchanger 124 is not easily overheated by the heated heating water output from the solar heat exchanger 16.
Preferably, the solar heat exchanger 16 is a plate heat exchanger, and the solar heat exchanger 16 is provided with a solar water inlet 161, a solar water outlet 162, a heating water inlet 163 and a heating water outlet 164; the solar heat exchanger 16 is communicated with the solar heating device through a solar water inlet 161 and a solar water outlet 162, water heated by the solar heating device enters the solar heat exchanger 16 from the solar water inlet 161, and then returns water from the solar water outlet 162; the heating water pipe 13 communicates with the solar heat exchanger 16 through the docking with the heating water inlet 163 and the heating water outlet 164.
The hot water output by the solar heating device heats the heating water through the solar heat exchanger 16, and the plate heat exchanger exchanges heat in a cross convection mode, so that the heat exchange efficiency is higher; meanwhile, the influence of water scale and impurities in the solar heating device on a wall-mounted furnace system can be isolated; and a water loop of the heating water pipe 13 is mutually independent from a water loop of the solar heating device, so that the future maintenance is more convenient.
In order to monitor the temperature of the heating water, a second heating outlet water temperature sensor 132 is disposed on the passage of the heating water pipe 13 at the downstream of the solar heat exchanger 16, and the second heating outlet water temperature sensor 132 senses the temperature of the heating water output from the wall-hung boiler mechanism 1, so that the user can observe the temperature of the heating water more intuitively for adjustment.
When the heating efficiency of the solar heating device is better, the solar heating device is only required to be started, the heating water in the heating water pipe 13 is subjected to heat exchange and heating through the solar heat exchanger 16, the heating water is heated by utilizing renewable energy sources, the solar heating function is realized, the solar heating device is fully utilized besides domestic water, and the consumption of natural gas is reduced; when the heating efficiency of the solar heating device is reduced, the solar heating device temporarily stops supplying water and heat to the solar heat exchanger 16, the igniter 123 is used again to open the burner fire grate 122, and the heating water is heated through the main heat exchanger 124, so that the heating function of the wall-hanging stove mechanism 1 is realized.
In order to further optimize the heating water passage in the wall-hanging stove mechanism 1, the circulating water pump 134 is provided upstream of the main heat exchanger 124, a branch communicating with the circulating water pump 134 is provided downstream of the solar heat exchanger 16 in the heating water pipe 13, and a bypass valve 133 is provided on the branch.
The bypass valve 133 is used for controlling the communication of the branches, when the pressure difference of the heating water pipe 13 on two sides of the bypass valve is large, the bypass valve 133 can be opened by the acting force generated by the pressure difference, a loop from the circulating water pump 134 to the solar heat exchanger 16 through the main heat exchanger 124 can be formed, and the normal operation of each function can be better kept when the flowing of the wall-mounted furnace mechanism 1 is not smooth or is blocked; the system flow resistance in the heating water pipe 13 can be dispersed, so that the flow of the heating water system is guaranteed; and the bypass valve 133 adaptively adjusts the flow rate of the heating water according to the pressure difference, so that the heating water path is more optimized.
In order to supplement the heating water in time under the condition of insufficient heating water, a water supplementing component 15 is arranged on the upstream of the solar heat exchanger 16 of the heating water pipe 13; the water replenishing assembly 15 includes a tap water replenishing pipe 151 for inputting tap water and a water pressure switch 152. The tap water replenishing pipe 151 is communicated with the heating water pipe 13 at the upstream of the solar heat exchanger 16 to replenish heating water, and is matched with a valve for adjusting flow to ensure the total flow in the heating water circulation system.
Through the water pressure switch 152, when the water volume of the heating water is insufficient and the water pressure switch 152 detects that the water pressure is smaller than the standard, the gas heating component 12 is controlled to pause heating for water supplement; when the water amount of the heating water pipe 13 reaches a certain standard, the water pressure switch 152 detects that the water pressure reaches the standard, and controls the gas heating component 12 to start heating.
In order to prevent the water pressure in the heating water system from being too high, the expansion water tank 14 is connected to the heating water pipe 13 in a branch manner, the expansion water tank 14 is located at the upstream of the main heat exchanger 124, when the total water pressure of the heating water pipe 13 is high, the heating water enters the expansion water tank 14 through the water pressure, and the expansion water tank 14 prevents the water pressure of the heating water system from being too high through the partial pressure of the water pressure.
Further, a pressure relief valve 135 and a pressure gauge 136 are installed on the heating water pipe 13, and both the pressure relief valve 135 and the pressure gauge 136 are arranged at the upstream of the expansion water tank 14; when the water pressure in the heating water pipe 13 is high, the high water pressure automatically opens the pressure release valve 135, so that the gas in the heating water system is released in time, thereby reducing the water pressure and improving the smooth operation degree of the heating water system; the user can more intuitively observe the water pressure in the heating water pipe 13 through the pressure gauge 136.
The implementation principle of the embodiment of the application is as follows: when the heating efficiency of the solar heating device is better, the solar heating device is started, the heating water in the heating water pipe 13 is subjected to heat exchange and heating through the solar heat exchanger 16, the heating water is heated by utilizing renewable energy sources, the solar heating function is realized, the solar heating device is fully utilized besides the domestic water, the consumption of natural gas is reduced, and the heating is more environment-friendly and energy-saving; when the solar heating apparatus cannot provide heat to the solar heat exchanger 16 any more under the influence of the environment, for example, after cloudy days or sunset, the solar heating apparatus temporarily supplies water and heat to the solar heat exchanger 16, and the heating water is heated by the natural gas through the main heat exchanger 124, so that the heating function of the wall-hanging furnace mechanism 1 is realized, and the heating water is kept at a high temperature and the heating function.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. A gas wall-mounted furnace suitable for linkage solar heating comprises a wall-mounted furnace shell (11), a gas heating component (12) and a heating water pipe (13), wherein the gas heating component (12) and the heating water pipe are arranged in the wall-mounted furnace shell (11); gas heating subassembly (12) are including providing the main heat exchanger (124) that the combustor fire of heat was arranged (122) and was heated heating water, and heating water pipe (13) are connected with main heat exchanger (124), are provided with circulating water pump (134), its characterized in that on heating water pipe (13): the solar heating system further comprises a solar heat exchanger (16), the solar heat exchanger (16) and the main heat exchanger (124) are connected in series on the heating water pipe (13), and heat energy input by the solar heat exchanger (16) is provided by a solar heating device.
2. The gas wall-mounted boiler suitable for linkage solar heating according to claim 1, characterized in that: the solar heat exchanger (16) is a plate heat exchanger.
3. The gas wall-mounted boiler suitable for linkage solar heating according to claim 1, characterized in that: the solar heat exchanger (16) is located downstream of the main heat exchanger (124) on the heating water pipe (13).
4. The gas wall-mounted boiler suitable for linkage solar heating according to claim 3, characterized in that: and a second heating outlet water temperature sensor (132) is arranged on the passage of the heating water pipe (13) and is positioned at the downstream of the solar heat exchanger (16).
5. The gas wall-mounted boiler suitable for linkage solar heating according to claim 3, characterized in that: and a water replenishing assembly (15) is arranged on the passage of the heating water pipe (13) and is positioned at the upstream of the solar heat exchanger (16).
6. The gas wall-mounted boiler suitable for linkage solar heating according to claim 5, characterized in that: the heating water pipe (13) is further connected with an expansion water tank (14) in a branch way, and the expansion water tank (14) is located at the upstream of the main heat exchanger (124).
7. The gas wall-hanging stove suitable for linkage solar heating according to claim 6, characterized in that: and a pressure relief valve (135) is also arranged on the heating water pipe (13), and the pressure relief valve (135) is arranged at the upstream of the expansion water tank (14).
8. The gas wall-mounted boiler suitable for linkage solar heating according to claim 1, characterized in that: the circulating water pump (134) is arranged at the upstream of the main heat exchanger (124), a branch communicated with the circulating water pump (134) is arranged at the downstream of the solar heat exchanger (16) of the heating water pipe (13), and a bypass valve (133) is arranged on the branch.
9. The gas wall-mounted boiler suitable for linkage solar heating according to claim 1, characterized in that: the heating water pipe (13) is provided with a superheat detector (131) downstream of the main heat exchanger (124).
CN202122263640.XU 2021-09-17 2021-09-17 Gas wall-mounted furnace suitable for linkage solar heating Active CN215637503U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122263640.XU CN215637503U (en) 2021-09-17 2021-09-17 Gas wall-mounted furnace suitable for linkage solar heating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122263640.XU CN215637503U (en) 2021-09-17 2021-09-17 Gas wall-mounted furnace suitable for linkage solar heating

Publications (1)

Publication Number Publication Date
CN215637503U true CN215637503U (en) 2022-01-25

Family

ID=79917567

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122263640.XU Active CN215637503U (en) 2021-09-17 2021-09-17 Gas wall-mounted furnace suitable for linkage solar heating

Country Status (1)

Country Link
CN (1) CN215637503U (en)

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