CN216619976U - Sewage source heat pump system capable of supplying cold and heat simultaneously in winter - Google Patents
Sewage source heat pump system capable of supplying cold and heat simultaneously in winter Download PDFInfo
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- CN216619976U CN216619976U CN202123265600.5U CN202123265600U CN216619976U CN 216619976 U CN216619976 U CN 216619976U CN 202123265600 U CN202123265600 U CN 202123265600U CN 216619976 U CN216619976 U CN 216619976U
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Abstract
The utility model relates to the technical field of sewage source energy utilization, in particular to a sewage source heat pump system capable of supplying cold and heat simultaneously in winter. The utility model discloses a sewage source heat pump system capable of supplying cold and heat simultaneously in winter, which comprises a sewage plate type heat exchanger, a cold supply plate type heat exchanger, a water source heat pump unit, a water collector and a water separator, wherein the primary side of the sewage plate type heat exchanger is connected with a sewage source, the secondary side of the sewage plate type heat exchanger is connected with the water source heat pump unit, the secondary side of the cold supply plate type heat exchanger is connected with a cold supply pipe network at the tail end of an area A, and the primary side of the cold supply plate type heat exchanger is connected with the primary side of the sewage plate type heat exchanger and the sewage source. The advantages are that: the design is reasonable, a sewage source heat pump system is selected, other cold sources are not needed to be added, the initial investment and the operation cost are reduced, and meanwhile, tail water in a sewage source is utilized, so that the energy is saved; the cold supply power supply equipment only has a water pump in winter, so that the power consumption is reduced, and the operation cost is reduced.
Description
Technical Field
The utility model relates to the technical field of sewage source energy utilization, in particular to a sewage source heat pump system capable of supplying cold and heat simultaneously in winter.
Background
At present, some buildings use air conditioning systems all the year round, cold sources and heat sources are required to be used at any time, and part of air conditioning areas need to supply cold all the year round or alternatively supply cold and hot water. This requires the air conditioning supply system to have both cooling and heating functions.
When available sewage sources are arranged near a building, a sewage source heat pump system is adopted as a main energy source for heating and refrigerating. Compared with other energy source modes, the sewage source heat pump is more stable and energy-saving in operation. In order to meet the requirements of refrigerating in summer and refrigerating and heating in winter of the building, the sewage heat pump system is additionally provided with other cold sources such as an air source heat pump, a water chilling unit and the like for refrigerating in winter besides heating in winter and cooling in summer. The construction cost and the operation cost of the air conditioning system are higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a sewage source heat pump system for supplying cold and heat simultaneously in winter, which effectively overcomes the defects of the prior art.
The technical scheme for solving the technical problems is as follows:
the utility model provides a cold sewage source heat pump system who supplies simultaneously winter, includes sewage plate heat exchanger, cooling plate heat exchanger, water source heat pump set, water collector and water knockout drum: a primary side fluid inlet of the sewage plate type heat exchanger is communicated with a sewage water taking tank at the upstream of a sewage source through a pipeline, a primary side fluid outlet of the sewage plate type heat exchanger is respectively connected with a first pipeline and a second pipeline, the first pipeline is connected with a pipeline at the downstream of the sewage source, the second pipeline is communicated with a primary side fluid inlet of the cooling plate type heat exchanger, and the first pipeline and the second pipeline are respectively provided with a first valve and a second valve; the primary side fluid outlet of the cooling plate type heat exchanger is connected with a sewage source downstream pipeline through a pipeline;
the water source heat pump unit is provided with an evaporator and a condenser, a medium inlet of the evaporator is respectively connected with a secondary side fluid outlet of the sewage plate type heat exchanger and a liquid outlet of the water collector through a third pipeline and a fourth pipeline, a third valve and a fourth valve are respectively arranged on the third pipeline and the fourth pipeline, a medium outlet of the evaporator is respectively connected with a liquid inlet of the water separator and a secondary side fluid inlet of the sewage plate type heat exchanger through a fifth pipeline and a sixth pipeline, and a fifth valve and a sixth valve are respectively arranged on the fifth pipeline and the sixth pipeline;
the medium inlet of the condenser is respectively connected with the liquid outlet of the water collector and the secondary side fluid outlet of the sewage plate type heat exchanger through a seventh pipeline and an eighth pipeline, and a seventh valve and an eighth valve are respectively arranged on the seventh pipeline and the eighth pipeline; a medium outlet of the condenser is connected with a secondary side fluid inlet of the sewage plate type heat exchanger and a liquid inlet of the water separator through a ninth pipeline and a tenth pipeline respectively, and a ninth valve and a tenth valve are arranged on the ninth pipeline and the tenth pipeline respectively;
the liquid outlet of the water separator is connected with the liquid inlet of the cooling pipe network at the tail end of the area A and the liquid inlet of the cooling pipe network at the tail end of the area B through a first cooling pipe and a first cooling pipe respectively, and the first cooling pipe is provided with a first cooling valve; a secondary side fluid outlet of the cooling plate type heat exchanger is connected with a liquid inlet of the cooling pipe network at the tail end of the area A through a secondary side pipeline, and a second cooling valve is arranged on the secondary side pipeline;
a liquid outlet of the terminal cold supply pipe network of the area A is respectively connected with a liquid inlet of the water collector and a secondary side fluid inlet of the cold supply plate type heat exchanger through a third cold supply pipe and a fourth cold supply pipe, and the third cold supply pipe and the fourth cold supply pipe are respectively provided with a third cold supply valve and a fourth cold supply valve; the liquid outlet of the cold and warm pipe network at the tail end of the B area is connected with the liquid inlet of the water collector.
On the basis of the technical scheme, the utility model can be further improved as follows.
Furthermore, an intermediate water circulating pump is arranged at a secondary side fluid outlet of the sewage plate type heat exchanger.
Further, a middle tail water circulating pump is arranged on the second pipeline.
Furthermore, an eleventh valve is arranged on the primary side fluid outlet pipeline of the cooling plate type heat exchanger.
Further, a cold water circulating pump is arranged on the secondary side pipeline of the cold supply plate type heat exchanger.
Furthermore, a cold and hot water circulating pump is arranged at the liquid inlet end of the water separator.
Further, a primary side fluid inlet of the sewage plate type heat exchanger is communicated with a liquid outlet end of a submersible sewage pump in the sewage water taking tank through a pipeline.
The utility model has the beneficial effects that: the design is reasonable, a sewage source heat pump system is selected, other cold sources are not needed to be added, the initial investment and the operation cost are reduced, and meanwhile, tail water in a sewage source is utilized, so that the energy is saved; the cold supply power supply equipment only has a water pump in winter, so that the power consumption is reduced, and the operation cost is reduced.
Drawings
FIG. 1 is a schematic diagram of a sewage source heat pump system for supplying cold and heat simultaneously in winter according to the present invention;
FIG. 2 is a pipeline connection diagram of a sewage source heat pump system for supplying cold and heat simultaneously in winter according to the present invention in summer;
fig. 3 is a piping connection diagram of the sewage source heat pump system for simultaneous supply of cold and heat in winter according to the present invention, in use in winter.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a sewage plate heat exchanger; 2. a cold supply plate heat exchanger; 3. a water source heat pump unit; 4. a water collector; 5. a water separator; 6. a sewage taking tank; 7. a source of sewage downstream piping; 8. an intermediate water circulating pump; 9. a middle tail water circulating pump; 10. a cold water circulation pump; 11. a first valve; 12. a second valve; 13. an eleventh valve; 31. an evaporator; 32. a condenser; 41. a third cooling valve; 42. a fourth cooling valve; 51. a first cooling valve; 52. a second cooling valve; 101. a cold and hot water circulating pump; 102. a submersible sewage pump; 311. a third valve; 312. a fourth valve; 313. a fifth valve; 314. a sixth valve; 321. a seventh valve; 322. an eighth valve; 323. a ninth valve; 324. a tenth valve.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.
Example (b): as shown in fig. 1, the winter cold and hot simultaneous supply sewage source heat pump system of this embodiment includes a sewage plate heat exchanger 1, a cold supply plate heat exchanger 2, a water source heat pump unit 3, a water collector 4 and a water separator 5: a primary side fluid inlet of the sewage plate type heat exchanger 1 is communicated with a sewage taking tank 6 at the upstream of a sewage source through a pipeline, a primary side fluid outlet of the sewage plate type heat exchanger is respectively connected with a first pipeline and a second pipeline, the first pipeline is connected with a sewage source downstream pipeline 7, the second pipeline is communicated with a primary side fluid inlet of the cold supply plate type heat exchanger 2, and the first pipeline and the second pipeline are respectively provided with a first valve 11 and a second valve 12; the primary side fluid outlet of the cooling plate type heat exchanger 2 is connected with a sewage source downstream pipeline 7 through a pipeline;
the water source heat pump unit 3 is provided with an evaporator 31 and a condenser 32, a medium inlet of the evaporator 31 is respectively connected with a secondary side fluid outlet of the sewage plate heat exchanger 1 and a liquid outlet of the water collector 4 through a third pipeline and a fourth pipeline, a third valve 311 and a fourth valve 312 are respectively arranged on the third pipeline and the fourth pipeline, a medium outlet of the evaporator 31 is respectively connected with a liquid inlet of the water separator 5 and a secondary side fluid inlet of the sewage plate heat exchanger 1 through a fifth pipeline and a sixth pipeline, and a fifth valve 313 and a sixth valve 314 are respectively arranged on the fifth pipeline and the sixth pipeline;
the medium inlet of the condenser 32 is connected to the liquid outlet of the water collector 4 and the secondary side fluid outlet of the sewage plate heat exchanger 1 through a seventh pipeline and an eighth pipeline, and a seventh valve 321 and an eighth valve 322 are respectively arranged on the seventh pipeline and the eighth pipeline; a medium outlet of the condenser 32 is connected to a secondary side fluid inlet of the sewage plate heat exchanger 1 and a liquid inlet of the water separator 5 through a ninth pipeline and a tenth pipeline, respectively, and the ninth pipeline and the tenth pipeline are provided with a ninth valve 323 and a tenth valve 324, respectively;
the liquid outlet of the water separator 5 is connected with the liquid inlet of the cooling pipe network at the tail end of the area A and the liquid inlet of the cooling pipe network at the tail end of the area B through a first cooling pipe and a first cooling pipe respectively, and the first cooling pipe is provided with a first cooling valve 51; a secondary side fluid outlet of the cooling plate type heat exchanger 2 is connected with a liquid inlet of the cooling pipe network at the tail end of the area A through a secondary side pipeline, and a second cooling valve 52 is arranged on the secondary side pipeline;
a liquid outlet of the cooling pipe network at the tail end of the area A is respectively connected with a liquid inlet of the water collector 4 and a secondary side fluid inlet of the cooling plate type heat exchanger 2 through a third cooling pipe and a fourth cooling pipe, and the third cooling pipe and the fourth cooling pipe are respectively provided with a third cooling valve 41 and a fourth cooling valve 42; the liquid outlet of the cold and warm pipe network at the tail end of the B area is connected with the liquid inlet of the water collector 4.
An intermediate water circulating pump 8 is arranged at a secondary side fluid outlet of the sewage plate type heat exchanger 1, a middle tail water circulating pump 9 is arranged on the second pipeline, an eleventh valve 13 is arranged on a primary side fluid outlet pipeline of the cooling plate type heat exchanger 2, a cold water circulating pump 10 is arranged on a secondary side pipeline of the cooling plate type heat exchanger 2, a cold and hot water circulating pump 101 is arranged at a liquid inlet end of the water separator 5, and a primary side fluid inlet of the sewage plate type heat exchanger 1 is communicated with a liquid outlet end of a submersible sewage pump 102 in the sewage taking pool 6 through a pipeline.
The system is formed into four circulation loops in the whole embodiment: the energy-taking circulation loop for the reclaimed water, the intermediate water circulation loop, the cold and hot water circulation loop at the tail end and the cold supply circulation loop in winter are specifically used as follows:
as shown in fig. 2, in summer, a cooling pipe network (denoted by a in the drawing) at the end of a zone a and a cooling and heating pipe network (denoted by B in the drawing) at the end of a zone B supply cooling, a first valve 11, a third cooling valve 41, a first cooling valve 51, a fourth valve 312, a fifth valve 313, an eighth valve 322, and a ninth valve 323 are opened, and a second valve 12, an eleventh valve 13, a fourth cooling valve 42, a second cooling valve 52, a third valve 311, a sixth valve 314, a seventh valve 321, and a tenth valve 324 are closed.
A reclaimed water energy-taking circulation loop: a sewage water taking tank 6 is arranged near the upstream of the sewage source, and the sewage water taking tank 6 is used as sewage source reclaimed water; the sewage taking tank 6 is internally provided with a sewage submersible pump 102, the sewage submersible pump 102 pumps reclaimed water to flow through the sewage plate heat exchanger 1 to exchange heat with intermediate water, heat in the intermediate water is absorbed, and the reclaimed water after heat absorption and temperature rise is discharged to a sewage source downstream pipeline 7 through a first valve 11 on a first pipeline.
An intermediate water circulation loop: the medium water circulating pump 8 drives the cooled medium water flowing out of the sewage plate heat exchanger 1 to enter a medium inlet of the condenser 32 through an eighth valve 322 on the eighth pipeline; after absorbing the tail end heat of the work conversion in the water source heat pump unit 3, the intermediate water is heated; the heated intermediate water enters the sewage plate heat exchanger 1 and sewage source reclaimed water for heat exchange and then is cooled.
End cold water circulation loop: the cold and hot water circulating pump 10 drives cold water flowing out of the evaporator 31 to enter the water separator 5 through a fifth valve 313 on a fifth pipeline, and the water separator 5 is connected with a cold supply pipe network at the tail end of the area A and a cold and hot pipe network at the tail end of the area B; cold water enters a cooling pipe network at the tail end of the area A and a cooling and heating pipe network at the tail end of the area B through a water separator 5, absorbs the heat at the tail ends and reduces the indoor temperature; the cold water absorbing the heat at the tail end flows back to the evaporator 31 through the water collector 4 via the fourth valve 312 on the fourth pipeline, and the water source heat pump unit 3 does work to convert the heat in the cold water in the evaporator 31 into the intermediate water in the condenser 32.
And secondly, as shown in fig. 3, in winter, a cooling pipe network at the tail end of the area a supplies cold, a cooling pipe network at the tail end of the area B supplies heat, the second valve 12, the eleventh valve 13, the fourth cooling valve 42, the second cooling valve 52, the third valve 311, the sixth valve 314, the eighth valve 322 and the ninth valve 323 are opened, and the first valve 11, the third cooling valve 41, the first cooling valve 51, the fourth valve 312, the fifth valve 313, the eighth valve 322 and the ninth valve 323 are closed.
A reclaimed water energy-taking circulation loop: the submersible sewage pump 102 pumps reclaimed water to flow through the sewage plate heat exchanger 1 to exchange heat with intermediate water, the intermediate water absorbs heat in the reclaimed water to raise the temperature, and the reclaimed water lowers the temperature; the reclaimed water (reclaimed water) after heat removal and temperature reduction is driven by a reclaimed water circulating pump 9 to enter the cold supply plate type heat exchanger 2 through a second valve 12, the reclaimed water and cold supply cold water exchange heat through the cold supply plate type heat exchanger 2, and the heat in the cold supply cold water is absorbed and then discharged to the downstream of a sewage source through an eleventh valve 13.
An intermediate water circulation loop: the intermediate water circulating pump 8 drives the intermediate water flowing out of the sewage plate heat exchanger 1 to enter the evaporator 31 through the third valve 311; the water source heat pump unit 3 does work to convert the heat in the intermediate water in the evaporator 31 into the hot water at the tail end of the condenser 32, and the intermediate water is cooled; the cooled intermediate water flowing out of the evaporator 31 enters the sewage plate heat exchanger 1 to exchange heat with the sewage source reclaimed water, and the intermediate water absorbs the reclaimed water heat to heat up.
End hot water circulation loop: the cold and hot water circulating pump 101 drives hot water flowing out of the condenser 32 to enter the water separator 5 through the tenth valve 324, the first cold supply valve 51 is closed, and the water separator 5 is connected with a cold and hot pipe network at the tail end of the B area; hot water enters a cold and warm pipe network at the tail end of the B area through a water separator 5, and heat in the hot water is discharged to the tail end to raise the indoor temperature; the hot water after heat rejection flows back to the condenser 32 through the water collector 4 and the tenth valve 324, and the water source heat pump unit 3 does work to convert the heat in the intermediate water in the evaporator 31 into the condenser hot water.
Winter cooling circulation loop: the cold water circulating pump 10 drives the cooled cold water flowing out of the cold supply plate type heat exchanger 2 to enter the cold supply pipe network at the tail end of the area A through the second cold supply valve 52, so that the heat at the tail end is absorbed, and the indoor temperature is reduced; and the cold supply cold water absorbing the heat at the tail end enters the cold supply plate type heat exchanger 2 through the fourth cold supply valve 42 to exchange heat and then is cooled.
In the embodiment, the sewage source heat pump system is selected, other cold sources are not required to be added, the initial investment and the operation cost are reduced, tail water in the sewage source is fully utilized, and energy is saved; the cold supply power supply equipment only has a water pump in winter, so that the power consumption is reduced, and the operation cost is reduced.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. The utility model provides a cold and hot sewage source heat pump system who supplies simultaneously in winter which characterized in that: the system comprises a sewage plate type heat exchanger (1), a cold supply plate type heat exchanger (2), a water source heat pump unit (3), a water collector (4) and a water separator (5): a primary side fluid inlet of the sewage plate type heat exchanger (1) is communicated with a sewage water taking tank (6) at the upstream of a sewage source through a pipeline, a primary side fluid outlet of the sewage plate type heat exchanger is respectively connected with a first pipeline and a second pipeline, the first pipeline is connected with a sewage source downstream pipeline (7), the second pipeline is communicated with a primary side fluid inlet of the cooling plate type heat exchanger (2), and a first valve (11) and a second valve (12) are respectively arranged on the first pipeline and the second pipeline; the primary side fluid outlet of the cold supply plate type heat exchanger (2) is connected with a sewage source downstream pipeline (7) through a pipeline,
the water source heat pump unit (3) is provided with an evaporator (31) and a condenser (32), a medium inlet of the evaporator (31) is connected with a secondary side fluid outlet of the sewage plate type heat exchanger (1) and a liquid outlet of the water collector (4) through a third pipeline and a fourth pipeline respectively, a third valve (311) and a fourth valve (312) are arranged on the third pipeline and the fourth pipeline respectively, a medium outlet of the evaporator (31) is connected with a liquid inlet of the water separator (5) and a secondary side fluid inlet of the sewage plate type heat exchanger (1) through a fifth pipeline and a sixth pipeline respectively, and a fifth valve (313) and a sixth valve (314) are arranged on the fifth pipeline and the sixth pipeline respectively;
a medium inlet of the condenser (32) is respectively connected with a liquid outlet of the water collector (4) and a secondary side fluid outlet of the sewage plate type heat exchanger (1) through a seventh pipeline and an eighth pipeline, and a seventh valve (321) and an eighth valve (322) are respectively arranged on the seventh pipeline and the eighth pipeline; a medium outlet of the condenser (32) is connected with a secondary side fluid inlet of the sewage plate type heat exchanger (1) and a liquid inlet of the water separator (5) through a ninth pipeline and a tenth pipeline respectively, and a ninth valve (323) and a tenth valve (324) are arranged on the ninth pipeline and the tenth pipeline respectively;
a liquid outlet of the water separator (5) is connected with a liquid inlet of a terminal cooling pipe network in the area A and a liquid inlet of a terminal cooling and heating pipe network in the area B through a first cooling pipe and a first cooling pipe respectively, and a first cooling valve (51) is arranged on the first cooling pipe; a secondary side fluid outlet of the cooling plate type heat exchanger (2) is connected with a liquid inlet of the cooling pipe network at the tail end of the area A through a secondary side pipeline, and a second cooling valve (52) is arranged on the secondary side pipeline;
a liquid outlet of the cooling pipe network at the tail end of the area A is connected with a liquid inlet of the water collector (4) and a secondary side fluid inlet of the cooling plate type heat exchanger (2) through a third cooling pipe and a fourth cooling pipe respectively, and the third cooling pipe and the fourth cooling pipe are provided with a third cooling valve (41) and a fourth cooling valve (42) respectively; the liquid outlet of the cold and warm pipe network at the tail end of the B area is connected with the liquid inlet of the water collector (4).
2. A winter cold and hot simultaneously supplying sewage source heat pump system according to claim 1, characterized in that: and an intermediate water circulating pump (8) is arranged at a secondary side fluid outlet of the sewage plate type heat exchanger (1).
3. A winter cold and hot simultaneously supplying sewage source heat pump system according to claim 1, characterized in that: and a middle tail water circulating pump (9) is arranged on the second pipeline.
4. A winter cold and hot simultaneously supplying sewage source heat pump system according to claim 1, characterized in that: and an eleventh valve (13) is arranged on a fluid outlet pipeline on the primary side of the cold supply plate type heat exchanger (2).
5. A winter cold and hot simultaneously supplying sewage source heat pump system according to claim 1, characterized in that: and a cold water circulating pump (10) is arranged on a secondary side pipeline of the cold supply plate type heat exchanger (2).
6. A winter cold and hot simultaneously supplying sewage source heat pump system according to claim 1, characterized in that: and a cold and hot water circulating pump (101) is arranged at the liquid inlet end of the water separator (5).
7. A winter cold and hot water simultaneous supply sewage source heat pump system according to any one of claims 1 to 6, characterized in that: and a primary side fluid inlet of the sewage plate type heat exchanger (1) is communicated with a liquid outlet end of a submersible sewage pump (102) in the sewage taking tank (6) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123265600.5U CN216619976U (en) | 2021-12-23 | 2021-12-23 | Sewage source heat pump system capable of supplying cold and heat simultaneously in winter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123265600.5U CN216619976U (en) | 2021-12-23 | 2021-12-23 | Sewage source heat pump system capable of supplying cold and heat simultaneously in winter |
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| Publication Number | Publication Date |
|---|---|
| CN216619976U true CN216619976U (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123265600.5U Active CN216619976U (en) | 2021-12-23 | 2021-12-23 | Sewage source heat pump system capable of supplying cold and heat simultaneously in winter |
Country Status (1)
| Country | Link |
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| CN (1) | CN216619976U (en) |
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2021
- 2021-12-23 CN CN202123265600.5U patent/CN216619976U/en active Active
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