CN220321417U - Central heating device for low-carbon building heating - Google Patents
Central heating device for low-carbon building heating Download PDFInfo
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- CN220321417U CN220321417U CN202321676120.4U CN202321676120U CN220321417U CN 220321417 U CN220321417 U CN 220321417U CN 202321676120 U CN202321676120 U CN 202321676120U CN 220321417 U CN220321417 U CN 220321417U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 33
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 164
- 238000005338 heat storage Methods 0.000 claims abstract description 42
- 238000010248 power generation Methods 0.000 claims abstract description 21
- 238000004321 preservation Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 12
- 230000005484 gravity Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 6
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000008400 supply water Substances 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Abstract
The utility model relates to a low-carbon building heating central heating device, which comprises a solar water collector, a solar power generation unit, a heat storage container, a steady flow tank and an expansion water tank, wherein the outlet end of the solar water collector is communicated with the heat storage container, and the steady flow tank is communicated with a first water source heat pump unit and a second water source heat pump unit; the heat exchange unit is arranged between the water pressure heat pump unit and the heat storage container, the obtained heat pump water source is sent into the expansion water tank, water is supplemented towards the steady flow tank through the expansion water tank, and a plurality of water source heat pump units are subjected to centralized and stable heat supply water source through the steady flow tank, so that the stability of the water source heat pump units is ensured; in addition, through carrying out heat exchange with the return water of the evaporator side in the water source heat pump unit and the hot water in the heat storage container, the temperature is raised to carry out cyclic utilization, guarantee the heat pump water source and get into the temperature stability in the heat pump unit in the heat supply process, reduce because of the unstable problem of water intake temperature of water source heat pump, and influence water source heat pump unit operating stability.
Description
Technical Field
The utility model belongs to the technical field of building heating, and particularly relates to a low-carbon building heating central heating device.
Background
The heat pump energy technology is gradually mature when applied to a building heating system, natural gas and electric power are adopted as driving, and a clean heating system is provided for a building through the combination of a heat pump unit; at present, a ground (water) source heat pump system is adopted for building heating, namely geothermal (hydrothermal) is adopted as a heat source medium entering a heat pump unit, wherein in the water source heat pump, water is directly fed into the water source heat pump from a water taking place (underground, lake and the like) or is conveyed into a water tank, and is fed into the water source heat pump unit through the water tank, but the temperature of the obtained water source cannot be stabilized due to uncontrollable seasonal temperature, and in the water source heat pump unit, the operation stability of a heat supply system is also influenced, so that the heat supply stability is influenced.
Disclosure of Invention
Aiming at the problems, the utility model aims to provide a low-carbon building heating central heating device for central and stable heat supply.
The technical scheme for realizing the utility model is as follows
The low-carbon building heating central heating device comprises a solar water collector, a solar power generation unit, a first water source heat pump unit, a second water source heat pump unit, a heat storage container, a steady flow tank and an expansion water tank;
the outlet end of the solar water collector is communicated with a heat storage container, and the outlet end of the heat storage container is at least communicated with a hot water user;
the steady flow tank is horizontally arranged, and at least a first outlet pipeline and a second outlet pipeline are communicated below the steady flow tank;
the inlet end of the evaporator in the first water source heat pump unit is communicated with a first outlet pipeline; the inlet end of the evaporator in the second water source heat pump unit is communicated with a second outlet pipeline;
a plurality of user terminals are respectively connected in parallel at the condenser side of the first water source heat pump unit and the condenser side of the second water source heat pump unit;
the heat storage device also comprises a heat exchange unit, wherein the primary side of the heat exchange unit is communicated with the interior of the heat storage container, and the secondary side inlet end of the heat exchange unit is communicated with the outlet end of the evaporator in the first water source heat pump unit and the outlet end of the evaporator in the second water source heat pump unit;
the expansion water tank is communicated with the secondary side outlet end of the heat exchange unit through a first pipeline; the bottom of the expansion water tank is communicated with the inside of the steady flow tank through a second pipeline;
the first delivery pump is arranged on the first outlet pipeline, the second delivery pump is arranged on the second outlet pipeline, and the solar power generation unit is electrically connected with the first delivery pump and the second delivery pump.
In a further improvement scheme, the heat storage container is provided with a first heat preservation jacket, a first electric heater surrounding the inner space of the heat storage container is spirally arranged in the heat preservation jacket, a first temperature sensor for detecting the inner temperature is arranged on the heat storage container, and the solar power generation unit is electrically connected with the first electric heater.
In a further improvement scheme, the steady flow tank is provided with a second heat preservation jacket, a second electric heater surrounding the inner space of the steady flow tank is spirally arranged in the second heat preservation jacket, a second temperature sensor for detecting the inner temperature is arranged on the steady flow tank, and the solar power generation unit is electrically connected with the second electric heater.
In a further improvement scheme, the heat exchange unit comprises a first heat exchanger and a second heat exchanger, wherein the inlet end of the primary side of the first heat exchanger is communicated with the top in the heat storage container through a third pipeline, the outlet end of the primary side of the first heat exchanger is communicated with the inlet end of the primary side of the second heat exchanger, and the outlet end of the primary side of the second heat exchanger is communicated with the bottom in the heat storage container through a fourth pipeline;
a third conveying pump is arranged on the third pipeline, and the solar power generation unit is electrically connected with the third conveying pump;
the outlet end of the secondary side of the first heat exchanger is communicated with the expansion water tank through a first pipeline, and the inlet end of the secondary side of the first heat exchanger and the outlet end of the secondary side of the second heat exchanger are communicated through a fifth pipeline;
a sixth pipeline is connected in parallel between the outlet end of the evaporator in the first water source heat pump unit and the outlet end of the evaporator in the second water source heat pump unit, a first electric control valve is arranged on the sixth pipeline, and the outlet end of the evaporator in the first water source heat pump unit is communicated with the fifth pipeline through a seventh pipeline; a second electric control valve is arranged on the seventh pipeline;
an outlet end of an evaporator in the second water source heat pump unit is communicated with an inlet end of a secondary side of the second heat exchanger through an eighth pipeline; a third electrically operated control valve is mounted on the eighth conduit.
In a further improvement scheme, filters are respectively arranged at the outlet ends of the evaporator in the second pipeline, the first water source heat pump unit and the second water source heat pump unit.
In a further development, the expansion tank is located higher than the ballast tank, and the fluid in the expansion tank flows into the ballast tank by gravity.
In a further improvement, a fluid level sensor is assembled in the steady flow tank, an electromagnetic control valve is arranged on the second pipeline, and the fluid level sensor is in signal connection with the electromagnetic control valve.
By adopting the technical scheme, the obtained heat pump water source is sent into the expansion water tank, water is supplemented towards the steady flow tank through the expansion water tank, and a plurality of water source heat pump units are subjected to centralized and stable heat supply water source through the steady flow tank, so that the stability of the water source heat pump units is ensured; in addition, through carrying out heat exchange with the return water of the evaporator side in the water source heat pump unit and the hot water in the heat storage container, the temperature is raised to carry out cyclic utilization, guarantee the heat pump water source and get into the temperature stability in the heat pump unit in the heat supply process, reduce because of the unstable problem of water intake temperature of water source heat pump, and influence water source heat pump unit operating stability.
Drawings
FIG. 1 is a schematic diagram of a system of the present utility model;
FIG. 2 is a schematic diagram of a heat exchange unit according to the present utility model;
FIG. 3 is a schematic diagram of the solar power generation unit of the present utility model;
in the drawing, 100, a solar water collector, 101, a solar power generation unit, 102, a first water source heat pump unit, 103, a second water source heat pump unit, 104, a heat storage container, 105, a steady flow tank, 106, an expansion tank, 107, a hot water user, 108, a first outlet pipe, 109, a second outlet pipe, 110, a baffle, 111, a user end, 112, a total control valve, 113, a sub control valve, 114, a heat exchange unit, 115, a first pipe, 116, a second pipe, 117, a first transfer pump, 118, a second transfer pump, 119, a first electric heater, 120, a first temperature sensor, 121, a second electric heater, 122, a second temperature sensor, 123, a first heat exchanger, 124, a second heat exchanger, 125, a third pipe, 126, a fourth pipe, 127, a third transfer pump, 128, a sixth pipe, 129, a first electric control valve, 130, a seventh pipe, 131, a second electric control valve, 132, an eighth pipe, 133, a third electric control valve, 134, a ninth pipe, a fourth electric control valve, 136, a fifth pipe, a filter, a fifth pipe, a solenoid valve, 137.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.
Referring to fig. 1, 2 and 3, the low-carbon building central heating device comprises a solar water collector 100, a solar power generation unit 101, a first water source heat pump unit 102, a second water source heat pump unit 103, a heat storage container 104, a steady flow tank 105 and an expansion water tank 106; the solar water collector 100 is a solar water heater, and can adopt a plurality of solar water collectors to receive solar energy and generate hot water; the solar power generation unit 101 generates power by using a solar photovoltaic module, and the generated electric energy can be integrated into a power grid or can provide electric energy for the heating device, such as a delivery pump, a heater, an electric control valve and the like mentioned below in the application. The specific components and structures of the solar water collector 100 and the solar power generation unit 101 are not described herein. The heat storage container 104 is used for storing hot water discharged by the solar water collector 100 for centralized storage for subsequent use; the steady flow tank 105 is used for butting a plurality of water source heat pump units, so that the heat source inlet ends of the water source heat pump units are relatively stable and balanced; the expansion water tank 106 is used for stabilizing and supplementing water for the side of the water source heat pump unit.
The outlet end of the solar water collector 100 is communicated with the heat storage container 104, hot water generated by the solar water collector 100 can enter the heat storage container 104 for concentrated storage, and the internal capacity of the heat storage container 104 is at least the water capacity in two solar water collectors 100; the outlet end of the heat storage container 104 is at least communicated with a hot water user 107, the hot water user 107 can directly obtain hot water from the heat storage container 104, and the hot water can be used as floor heating water supply for the hot water user or daily hot water.
The steady flow tank 105 is horizontally placed, a long cylindrical water storage space is formed in the steady flow tank along the horizontal direction, and at least a first outlet pipeline 108 and a second outlet pipeline 109 are communicated below the steady flow tank 105; the space between the first outlet pipeline 108 and the second outlet pipeline 109 is more than 20 cm, so that mutual disturbance of water in the steady flow tank 105 entering the first outlet pipeline 108 and the second outlet pipeline 109 is reduced as much as possible, the flow of the internal water is relatively stable, and the flow stability entering each water source heat pump unit is further improved. Further reducing the disturbance of the flow, a baffle 110 is fixedly arranged at the bottom of the steady flow tank 105 between the first outlet pipe 108 and the second outlet pipe 109, and the baffle 110 extends upwards from the bottom of the steady flow tank 105 to below half the position in the steady flow tank 105 so as to separate the first outlet pipe and the second outlet pipe 109 relatively. A plurality of outlet pipes are also arranged below the steady flow tank 105 so as to be used in a subsequent expansion mode, and the liquid level in the steady flow tank 105 is higher than the height of the baffle plate.
The inlet end of the evaporator in the first water source heat pump unit 102 is communicated with a first outlet pipeline 108; the inlet end of the evaporator in the second water source heat pump unit 103 is communicated with a second outlet pipeline 109; that is, the water in the steady flow tank 105 is introduced into the evaporator in the first water source heat pump unit 102 through the drainage of the first outlet pipeline 108, and the water in the steady flow tank 105 is introduced into the evaporator in the second water source heat pump unit 103 through the drainage of the second outlet pipeline 109; and a plurality of user terminals 111 are respectively connected in parallel on the condenser side in the first water source heat pump unit 102 and the condenser side in the second water source heat pump unit 103, and the fluid at the user terminal 111 enters the condenser, so that the temperature is increased, and heat supply is performed.
A main control valve is arranged at the inlet end of the condenser of the water source heat pump unit so as to open the corresponding main control valve 112 according to the use of the water source heat pump unit, and a sub control valve 113 is arranged at the outlet end of each user terminal so as to control the fluid at the user terminal to enter the condenser.
The heat storage device further comprises a heat exchange unit 114, wherein the primary side of the heat exchange unit 114 is communicated with the interior of the heat storage container 104, the secondary side inlet end of the heat exchange unit 114 is communicated with the outlet end of the evaporator in the first water source heat pump unit 102 and the outlet end of the evaporator in the second water source heat pump unit 103, and the expansion water tank 106 is communicated with the secondary side outlet end of the heat exchange unit through a first pipeline 115; the bottom of the expansion tank 106 is communicated with the interior of the steady flow tank 105 through a second pipeline 116; the water discharged from the evaporator and having a reduced temperature can exchange heat with the high temperature water in the heat storage container 104 through the heat exchange unit, and after the temperature is raised, the water enters the expansion water tank 106 through the first pipeline 115 and is mixed with the water in the expansion water tank 106, and finally flows into the steady flow tank 105 through the second pipeline 116, so that the entering temperature of the evaporator in the water source heat pump unit is raised.
The first delivery pump 117 is assembled on the first outlet pipe 108, the second delivery pump 118 is assembled on the second outlet pipe 109, and the solar power generation unit 101 is electrically connected with the first delivery pump 117 and the second delivery pump 118, that is, the power generated by the solar power generation unit 101 can be supplied to the first delivery pump and the second delivery pump.
In a further implementation, the heat storage container 104 is provided with a first heat preservation jacket, a first electric heater 119 surrounding the inner space of the heat storage container 104 is spirally arranged in the heat preservation jacket, a first temperature sensor 120 for detecting the inner temperature is arranged on the heat storage container 104, the solar power generation unit 101 is electrically connected with the first electric heater 119 to supply power for the first heater 119, and the first electric heater 119 is positioned in the first heat preservation jacket to heat, so that the temperature in the heat preservation jacket is increased, and the heat preservation effect is improved.
In a further implementation, the steady flow tank 105 is provided with a second heat insulation jacket, a second electric heater 121 surrounding the inner space of the steady flow tank 105 is spirally arranged in the second heat insulation jacket, a second temperature sensor 122 for detecting the inner temperature is installed on the steady flow tank 105, the solar power generation unit 101 is electrically connected with the second electric heater 121 to supply power for the second heater 121, and the second heater 122 is positioned in the second heat insulation jacket for heating, so that the temperature in the heat insulation jacket is increased, and the heat insulation effect is improved.
In the embodiment of the application, the heat exchange unit comprises a first heat exchanger 123 and a second heat exchanger 124, wherein the inlet end of the primary side of the first heat exchanger 123 is communicated with the top in the heat storage container 104 through a third pipeline 125, the outlet end of the primary side of the first heat exchanger 123 is communicated with the inlet end of the primary side of the second heat exchanger 124, and the outlet end of the primary side of the second heat exchanger 124 is communicated with the bottom in the heat storage container 104 through a fourth pipeline 126; a third transfer pump 127 is mounted on the third pipe 125, and the solar power generation unit 101 is electrically connected to the third transfer pump 127 to supply electric power to the third transfer pump 127.
The outlet end of the secondary side of the first heat exchanger 123 is communicated with the expansion water tank 106 through a first pipeline, and the inlet end of the secondary side of the first heat exchanger 123 and the outlet end of the secondary side of the second heat exchanger 124 are communicated through a fifth pipeline 138; a sixth pipeline 128 is connected in parallel between the outlet end of the evaporator in the first water source heat pump unit 102 and the outlet end of the evaporator in the second water source heat pump unit 103, a first electric control valve 129 is arranged on the sixth pipeline 128, and the outlet end of the evaporator in the first water source heat pump unit 102 is communicated with a fifth pipeline 138 through a seventh pipeline 130; a second electrically-operated control valve 131 is installed on the seventh pipe 130; the outlet end of the evaporator in the second water source heat pump unit 103 is communicated with the inlet end of the secondary side of the second heat exchanger 124 through an eighth pipeline 132; a third electrically-operated control valve 133 is mounted on the eighth pipe.
During the use, when the first electric control valve 129 and the third electric control valve 133 are opened and the second electric control valve 131 is closed, the backwater discharged from the evaporator side of the two water source heat pump units sequentially passes through the second heat exchanger 124 and the first heat exchanger 123 to exchange heat, and the heat exchange is performed in series, so that the backwater in the heat storage container 104 flows reversely with the backwater from the evaporator side through the first heat exchanger 123 and the second heat exchanger 124 in sequence, and the backwater temperature rises.
When the first electric control valve 129 and the second electric control valve 131 are opened and the third electric control valve 133 is closed, the backwater discharged from the evaporator sides of the two water source heat pump units passes through the first heat exchanger 123 to exchange heat, and the backwater at the evaporator sides only needs to exchange heat through the first heat exchanger 123 when the first water source heat pump unit 102 is deactivated or the second heat pump unit is deactivated.
The outlet ends of the evaporator sides of the other two water source heat pump units can be communicated with the expansion water tank 106 through a ninth pipeline 134 connected in parallel with the outlet ends, a fourth electric control valve 135 is arranged on the ninth pipeline 134, when the return water of the evaporator does not need to pass through the heat exchange unit for heat exchange, the first electric control valve 129 and the fourth electric control valve 135 are opened, the second electric control valve 131 and the third electric control valve 133 are closed, and the return water discharged from the evaporator sides can directly enter the expansion water tank 106.
In the implementation of the present application, the filter 136 is respectively installed at the outlet end of the evaporator in the second pipeline, the first water source heat pump unit 102, and the outlet end of the evaporator in the second water source heat pump unit 103, so as to filter the water source.
In the implementation of the application, the position of the expansion water tank 106 is higher than that of the steady flow tank 105, and fluid in the expansion water tank 106 flows into the steady flow tank 105 through gravity, so that a fluid power source is not needed, and the use of equipment is reduced.
In the middle of this application implementation, install fluid level sensor in stationary flow jar 105, install electromagnetic control valve 137 on the second pipeline, fluid level sensor forms signal connection with electromagnetic control valve 137, when the interior water pressure of stationary flow jar 105 is less than the settlement pressure, electromagnetic control valve opens and carries out water delivery supplementary pressure, makes the interior water pressure that is in certain within range of stationary flow jar 105, guarantees the stability to water source heat pump unit water supply.
Finally, it should be noted that: the above embodiments are merely preferred embodiments of the present utility model to illustrate the technical solution of the present utility model, but not to limit the scope of the present utility model; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions; in addition, the technical scheme of the utility model is directly or indirectly applied to other related technical fields, and the technical scheme is included in the scope of the utility model.
Claims (7)
1. The low-carbon central heating device for building heating comprises a solar water collector, a solar power generation unit, a first water source heat pump unit, a second water source heat pump unit, a heat storage container, a steady flow tank and an expansion water tank, and is characterized in that,
the outlet end of the solar water collector is communicated with a heat storage container, and the outlet end of the heat storage container is at least communicated with a hot water user;
the steady flow tank is horizontally arranged, and at least a first outlet pipeline and a second outlet pipeline are communicated below the steady flow tank;
the inlet end of the evaporator in the first water source heat pump unit is communicated with a first outlet pipeline; the inlet end of the evaporator in the second water source heat pump unit is communicated with a second outlet pipeline;
a plurality of user terminals are respectively connected in parallel at the condenser side of the first water source heat pump unit and the condenser side of the second water source heat pump unit;
the heat storage device also comprises a heat exchange unit, wherein the primary side of the heat exchange unit is communicated with the interior of the heat storage container, and the secondary side inlet end of the heat exchange unit is communicated with the outlet end of the evaporator in the first water source heat pump unit and the outlet end of the evaporator in the second water source heat pump unit;
the expansion water tank is communicated with the secondary side outlet end of the heat exchange unit through a first pipeline; the bottom of the expansion water tank is communicated with the inside of the steady flow tank through a second pipeline;
the first delivery pump is arranged on the first outlet pipeline, the second delivery pump is arranged on the second outlet pipeline, and the solar power generation unit is electrically connected with the first delivery pump and the second delivery pump.
2. The low-carbon construction heating central heating apparatus according to claim 1, wherein,
the heat storage container is provided with a first heat preservation jacket, a first electric heater surrounding the inner space of the heat storage container is spirally arranged in the heat preservation jacket, a first temperature sensor for detecting the inner temperature is arranged on the heat storage container, and the solar power generation unit is electrically connected with the first electric heater.
3. The low-carbon construction heating central heating apparatus according to claim 1, wherein,
the steady flow tank is provided with a second heat preservation jacket, a second electric heater surrounding the inner space of the steady flow tank is spirally arranged in the second heat preservation jacket, a second temperature sensor for detecting the inner temperature is arranged on the steady flow tank, and the solar power generation unit is electrically connected with the second electric heater.
4. The low-carbon construction heating central heating apparatus according to claim 1, wherein,
the heat exchange unit comprises a first heat exchanger and a second heat exchanger, wherein the inlet end of the primary side of the first heat exchanger is communicated with the top in the heat storage container through a third pipeline, the outlet end of the primary side of the first heat exchanger is communicated with the inlet end of the primary side of the second heat exchanger, and the outlet end of the primary side of the second heat exchanger is communicated with the bottom in the heat storage container through a fourth pipeline;
a third conveying pump is arranged on the third pipeline, and the solar power generation unit is electrically connected with the third conveying pump;
the outlet end of the secondary side of the first heat exchanger is communicated with the expansion water tank through a first pipeline, and the inlet end of the secondary side of the first heat exchanger and the outlet end of the secondary side of the second heat exchanger are communicated through a fifth pipeline;
a sixth pipeline is connected in parallel between the outlet end of the evaporator in the first water source heat pump unit and the outlet end of the evaporator in the second water source heat pump unit, a first electric control valve is arranged on the sixth pipeline,
the outlet end of the evaporator in the first water source heat pump unit is communicated with the fifth pipeline through a seventh pipeline; a second electric control valve is arranged on the seventh pipeline;
an outlet end of an evaporator in the second water source heat pump unit is communicated with an inlet end of a secondary side of the second heat exchanger through an eighth pipeline; a third electrically operated control valve is mounted on the eighth conduit.
5. The low-carbon construction heating central heating apparatus according to claim 1, wherein,
filters are respectively arranged at the outlet ends of the evaporator in the second pipeline and the first water source heat pump unit and the outlet ends of the evaporator in the second water source heat pump unit.
6. The low-carbon construction heating central heating apparatus according to claim 1, wherein,
the position of the expansion water tank is higher than that of the steady flow tank, and fluid in the expansion water tank flows into the steady flow tank through gravity.
7. The low-carbon construction heating central heating apparatus according to claim 1, wherein,
the steady flow tank is internally provided with a fluid level sensor, the second pipeline is provided with an electromagnetic control valve, and the fluid level sensor is in signal connection with the electromagnetic control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321676120.4U CN220321417U (en) | 2023-06-29 | 2023-06-29 | Central heating device for low-carbon building heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321676120.4U CN220321417U (en) | 2023-06-29 | 2023-06-29 | Central heating device for low-carbon building heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220321417U true CN220321417U (en) | 2024-01-09 |
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ID=89413698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321676120.4U Active CN220321417U (en) | 2023-06-29 | 2023-06-29 | Central heating device for low-carbon building heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220321417U (en) |
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2023
- 2023-06-29 CN CN202321676120.4U patent/CN220321417U/en active Active
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