CN215295438U - Water source heat pump system - Google Patents
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- CN215295438U CN215295438U CN202121164927.0U CN202121164927U CN215295438U CN 215295438 U CN215295438 U CN 215295438U CN 202121164927 U CN202121164927 U CN 202121164927U CN 215295438 U CN215295438 U CN 215295438U
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Abstract
The application provides a water source heat pump system, relates to renewable energy and utilizes technical field. The water source heat pump system comprises a main water supply pipeline, a first heat pump subsystem, a second heat pump subsystem and a first bypass pipeline; the main water supply pipeline is used for conveying water from a water source; the first heat pump subsystem comprises a first valve, a first filter, a second valve and a first heat pump host which are sequentially connected, and the water inlet end of the first valve is connected with the main water supply pipeline; the second heat pump subsystem comprises a third valve, a second filter, a fourth valve and a second heat pump host which are sequentially connected, and the water inlet end of the third valve is connected with the main water supply pipeline; two ends of the first bypass pipeline are respectively connected with the water outlet end of the second valve and the water outlet end of the fourth valve, and the first bypass pipeline is provided with a fifth valve. The water source heat pump system can complete the cleaning or maintenance of the filter without stopping the operation of the whole system, is simple and economical to operate, and improves the production efficiency.
Description
Technical Field
The application relates to the technical field of renewable energy utilization, in particular to a water source heat pump system.
Background
A main operation system and a standby system are arranged in a water source heat pump system, and filters of the main operation system and the standby system are indispensable devices and are usually arranged at the medium inlet end of a pipeline system. The filter is a filter which directly intercepts impurities in a medium by using a filter screen and is used for removing suspended matters and particles in the medium, reducing turbidity, purifying the medium and reducing the generation of system dirt, bacteria, algae, rust and the like so as to ensure the normal work of the system.
However, as the system operation time increases, the filtering efficiency of the filter gradually decreases, and the system cannot maintain high-efficiency operation. Therefore, the filter needs to be periodically cleaned or maintained, but the operation of the entire system needs to be stopped at the time of cleaning or maintenance, which is cumbersome and uneconomical to operate, and reduces the production efficiency.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the water source heat pump system is provided for solving the problem that the whole system needs to be stopped when a filter is cleaned or maintained in the prior art.
In order to achieve the above object, the present application provides a water source heat pump system, which includes a main water supply pipeline, a first heat pump subsystem, a second heat pump subsystem, and a first bypass pipeline;
the main water supply pipeline is used for conveying water from a water source;
the first heat pump subsystem comprises a first valve, a first filter, a second valve and a first heat pump host which are sequentially connected, and the water inlet end of the first valve and the water outlet end of the first heat pump host are respectively connected with the main water supply pipeline;
the second heat pump subsystem comprises a third valve, a second filter, a fourth valve and a second heat pump main machine which are sequentially connected, and the water inlet end of the third valve and the water outlet end of the second heat pump main machine are respectively connected with the main water supply pipeline;
one end of the first bypass pipeline is connected between the water outlet end of the second valve and the water inlet end of the first heat pump host, the other end of the first bypass pipeline is connected between the water outlet end of the fourth valve and the water inlet end of the second heat pump host, and a fifth valve is arranged on the first bypass pipeline.
In a possible embodiment, the water outlet ends of the first filter and the second filter are correspondingly provided with a first pressure detection device and a second pressure detection device.
In a possible implementation manner, the water source heat pump system further includes a first circulating water pump and a second circulating water pump, the first circulating water pump and the second circulating water pump are connected in parallel and disposed on the main water supply pipeline, and both the first circulating water pump and the second circulating water pump are located upstream of the main water supply pipeline in the water conveying direction.
In one possible embodiment, the water source heat pump system further comprises a first circulating water pump and a second circulating water pump;
the first circulating water pump is arranged between the first valve and the main water supply pipeline;
the second circulating water pump is arranged between the third valve and the main water supply pipeline.
In a possible implementation manner, the water source heat pump system further includes a second bypass pipeline, two ends of the second bypass pipeline are respectively connected to the water inlet end of the first valve and the water inlet end of the third valve, and a sixth valve is disposed on the second bypass pipeline.
In a possible embodiment, the water source heat pump system further includes an auxiliary filter, and the fifth valve and the sixth valve are both three-way valves, and the auxiliary filter connects the fifth valve and the sixth valve, respectively.
In one possible embodiment, the fifth valve and the sixth valve are both electric three-way valves.
In a possible embodiment, the water inlet ends of the first circulating water pump and the second circulating water pump are provided with seventh valves.
In a possible implementation manner, the water inlet ends of the first heat pump main unit and the second heat pump main unit are provided with eighth valves.
In a possible implementation manner, the water outlet ends of the first heat pump main unit and the second heat pump main unit are connected to the main water supply pipeline through a return pipeline, the water source heat pump system further includes a ninth valve disposed on the main water supply pipeline, and the water outlet end of the ninth valve is connected to the return pipeline.
Compared with the prior art, the beneficial effects of the application are that:
the application provides a water source heat pump system, which comprises a main water supply pipeline, a first heat pump subsystem, a second heat pump subsystem and a first bypass pipeline; the main water supply pipeline is used for conveying water from a water source; the first heat pump subsystem comprises a first valve, a first filter, a second valve and a first heat pump host which are sequentially connected, wherein the water inlet end of the first valve and the water outlet end of the second heat pump host are respectively connected with a main water supply pipeline; the second heat pump subsystem comprises a third valve, a second filter, a fourth valve and a second heat pump host which are sequentially connected, and the water inlet end of the third valve and the water outlet end of the second heat pump host are respectively connected with the main water supply pipeline; one end of the first bypass pipeline is connected between the water outlet end of the second valve and the water outlet end of the fourth valve, the water inlet end of the first heat pump main unit, the other end of the first bypass pipeline is connected between the water outlet end of the fourth valve and the water inlet end of the second heat pump main unit, and the fifth valve is arranged on the first bypass pipeline. The application provides a water source heat pump system, at first heat pump subsystem start-up operation, under the second heat pump subsystem as reserve condition, when needs wash or maintain first filter, the third valve and the fourth valve in the fifth valve and the second heat pump subsystem on the first bypass pipeline are opened in proper order to the accessible, first valve and second valve in the first heat pump subsystem are closed again for water reentrant first heat pump host computer behind the second filter, guarantee water source heat pump system normal operating. Therefore, the filter can be cleaned or maintained without stopping the operation of the whole system, the operation is simple and economical, and the production efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram illustrating a water source heat pump system according to a first embodiment of the present application;
FIG. 2 illustrates a flow chart of a method for cleaning or maintaining a first filter in a water source heat pump system according to a first embodiment of the present application;
FIG. 3 is a schematic diagram of a water source heat pump system according to a second embodiment of the present application;
FIG. 4 is a flow chart illustrating a method for cleaning or maintaining a first filter in a water source heat pump system according to a second embodiment of the present disclosure;
fig. 5 shows a schematic structural diagram of a water source heat pump system according to a third embodiment of the present application.
Description of the main element symbols:
100-main water supply line; 100 a-a ninth valve; 200 a-a first heat pump subsystem; 200 b-a second heat pump subsystem; 210 a-a first branch line; 210 b-a second branch line; 220 a-a first valve; 220 b-a third valve; 230 a-a first filter; 230 b-a second filter; 240 a-a second valve; 240 b-a fourth valve; 250 a-a first pressure detection means; 250 b-a second pressure detection means; 260-eighth valve; 270 a-a first heat pump main machine; 270 b-a second heat pump main machine; 300-a first bypass line; 300 a-a fifth valve; 400 a-first circulating water pump; 400 b-a second circulating water pump; 410-a seventh valve; 500-a return line; 600-a second bypass line; 600 a-a sixth valve; 700-auxiliary filter.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "center," "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 present application and for simplicity in 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 present application.
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 one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, 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 intervening media. 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.
Example one
Referring to fig. 1 and fig. 2, a water source heat pump system provided in this embodiment belongs to the technical field of renewable energy utilization.
The water source heat pump system utilizes solar energy resources stored in the earth water body as cold and heat sources to carry out energy conversion. Water bodies that can be utilized include water or rivers with underground portions, rivers and lakes with surface portions, and oceans.
Referring to fig. 1, the water source heat pump system of the present embodiment includes a main water supply pipeline 100, a first heat pump subsystem 200a, a second heat pump subsystem 200b, and a first bypass pipeline 300. Wherein the main water supply pipeline 100 is used for conveying water from a water source, and the first heat pump subsystem 200a and the second heat pump subsystem 200b are both connected with the main water supply pipeline 100. In this embodiment, the first heat pump sub-system 200a and the second heat pump sub-system 200b are arranged in parallel.
It should be understood that the first heat pump sub-system 200a and the second heat pump sub-system 200b are provided in this embodiment to accommodate supply needs at different times. That is, during periods of low supply demand, the first heat pump subsystem 200a may be turned on with the second heat pump subsystem 200b on standby, although the second heat pump subsystem 200b may be turned on with the first heat pump subsystem 200a on standby. During periods of high supply demand, when only one of the first and second heat pump subsystems 200a and 200b cannot meet the demand, the first and second heat pump subsystems 200a and 200b may be turned on simultaneously to meet the supply demand.
In this embodiment, the second heat pump subsystem 200b is defined as a standby system of the first heat pump subsystem 200a, that is, the first heat pump subsystem 200a is a normally open system.
Referring to fig. 1, the first heat pump subsystem 200a includes a first branch line 210a, a first valve 220a, a first filter 230a, a second valve 240a, and a first heat pump main unit 270 a. The first valve 220a, the first filter 230a, the second valve 240a and the first heat pump main unit 270a are sequentially connected in series through the first branch line 210a, and a water inlet end of the first valve 220a and a water outlet end of the first heat pump main unit 270a are connected to the main water supply line 100.
The water body conveyed in the main water supply pipeline 100 can enter the first heat pump main unit 270a through the first valve 220a, the first filter 230a and the second valve 240a along the first branch pipeline 210a, and the water body is discharged after the energy exchange in the first heat pump main unit 270a is completed.
Accordingly, cleaning or maintenance of the first filter 230a may be facilitated by closing the first and second valves 220a and 240a at both ends of the first filter 230a to block water from entering the first filter 230 a.
Referring to fig. 1, the second heat pump subsystem 200b includes a second branch line 210b, a third valve 220b, a second filter 230b, a fourth valve 240b and a second heat pump main unit 270b, wherein the third valve 220b, the second filter 230b, the fourth valve 240b and the second heat pump main unit 270b are sequentially connected in series through the second branch line 210b, and a water inlet of the second valve 240a is connected to the main water supply line 100.
The water body transported in the main water supply pipeline 100 may also enter the second heat pump main unit 270b through the third valve 220b, the second filter 230b and the fourth valve 240b along the second branch pipeline 210b, and the water body is discharged after completing the energy exchange in the second heat pump main unit 270 b.
Therefore, it is possible to facilitate cleaning or maintenance of the second filter 230b by closing the third and fourth valves 220b and 240b located at both ends of the second filter 230b to block water from entering the second filter 230 b.
Further, in this embodiment, the water source heat pump system further includes a first bypass line 300 and a fifth valve 300 a.
One end of the first bypass line 300 is connected to the water outlet end of the second valve 240a, between the water inlet ends of the first heat pump main unit 270a, the other end of the first bypass line 300 is connected to the water outlet end of the fourth valve 240b and between the water inlet ends of the second heat pump main unit 270b, and the fifth valve 300a is disposed on the first bypass line 300. In the normal operation state, the fifth valve 300a of the first bypass line 300 is in a closed state.
Further, the first valve 220a, the second valve 240a, the third valve 220b, the fourth valve 240b, and the fifth valve 300a may be selected to be electric valves or manual valves. In this embodiment, the first valve 220a, the second valve 240a, the third valve 220b, the fourth valve 240b and the fifth valve 300a are selected as electric valves, i.e., the electric valves can be switched on and off by power-on control, so that the automation degree of the system is improved, and the operation is more convenient. Optionally, the first valve 220a, the second valve 240a, the third valve 220b, the fourth valve 240b, and the fifth valve 300a may be electrically operated butterfly valves.
In this embodiment, the water source heat pump system further includes a first water circulating pump 400a and a second water circulating pump 400b, wherein the first water circulating pump 400a and the second water circulating pump 400b are both disposed in parallel on the main water supply pipeline 100, and the first water circulating pump 400a and the second water circulating pump 400b are both located at the upstream of the main water supply pipeline 100 in the water body conveying direction, so that one of the first water circulating pump 400a and the second water circulating pump 400b can be used as a backup, and when one of the first water circulating pump 400a and the second water circulating pump 400b is damaged, the other one is started to ensure the normal operation of the system.
Further, the water inlet ends of the first water circulation pump 400a and the second water circulation pump 400b are respectively provided with a seventh valve 410, and the water outlet ends of the first water circulation pump 400a and the second water circulation pump 400b are respectively provided with a seventh valve 410. When one of the first water circulation pump 400a and the second water circulation pump 400b is repaired or replaced, the seventh valves 410 corresponding to both ends are only required to be closed.
Optionally, the seventh valve 410 can be selected to be an electric valve or a manual valve, and in this embodiment, the seventh valve 410 is selected to be a manual butterfly valve, because the seventh valve 410 is not frequently used, and the manual butterfly valve can reduce the cost of the whole system setup.
In this embodiment, the water inlet end and the water outlet end of the first heat pump main unit 270a and the second heat pump main unit 270b are provided with eighth valves 260. Therefore, the first heat pump main unit 270a or the second heat pump main unit 270b can be repaired or maintained by closing the corresponding eighth valve 260.
The water outlet ends of the first heat pump main unit 270a and the second heat pump main unit 270b are connected to the main water supply pipeline 100 through a return pipeline 500.
Further, the waterhead heat pump system further includes a ninth valve 100a disposed on the main water supply pipeline 100, and an outlet end of the ninth valve 100a is connected to the return pipeline 500, in this embodiment, the ninth valve 100a is located between the connection points of the return pipeline 500 and the third valve 220b, respectively, and the main water supply pipeline 100. Further, the water discharged from the first heat pump main unit 270a or the second heat pump main unit 270b is sent to the main water supply pipeline 100 along the return pipeline 500, and then returned to the water source or other places.
It should be noted that, when the water source heat pump system is in operation, the ninth valve 100a is in a closed state. Alternatively, the ninth valve 100a may be an electric valve or a manual valve, in this embodiment, a manual butterfly valve.
Further, in this embodiment, the outlet end of the first filter 230a is provided with a first pressure detecting device 250a, and the first pressure detecting device 250a is used for detecting the water pressure condition at the outlet end of the first filter 230 a. The water outlet end of the second filter 230b is provided with a second pressure detecting device 250b, and the second pressure detecting device 250b is used for detecting the water pressure condition of the water outlet end of the second filter 230 b.
Alternatively, the first and second pressure detecting means 250a and 250b may be selected to be mechanical pressure gauges.
Referring to fig. 1 and fig. 2, in the present embodiment, for example, when the first heat pump subsystem 200a is operating and the second heat pump subsystem 200b is in the standby shutdown state, if the pressure value of the first pressure detecting device 250a at the water outlet end of the first filter 230a is higher than the predetermined value, it is determined that the filter cartridge inside the first filter 230a is clogged. To ensure that the first heat pump subsystem 200a is operating properly, the first filter 230a needs to be cleaned or the filter cartridge replaced.
In this embodiment, the steps of cleaning or maintaining the first filter 230a are as follows:
s10: first opening the third valve 220b and the fourth valve 240b on either side of the second filter 230b in the second heat pump subsystem 200b to place the second filter 230b in communication with the main water line 100;
s20: then, the fifth valve 300a on the first bypass line 300 is opened, and the second filter 230b is connected to the first heat pump subsystem 200 a;
s30: a first valve 220a and a second valve 240a closing both ends of the first filter 230 a;
s40: cleaning or servicing the filter cartridge in the first filter 230 a;
s50: after cleaning or maintenance is completed, the first valve 220a at the water inlet end of the first filter 230a is opened to allow the water to enter the first filter 230a and fill the whole first filter 230a, so as to ensure that no gas is mixed in the first filter 230 a;
s60: then the second valve 240a at the outlet end of the second filter 230b is opened, so that the first filter 230a is connected to the system;
s70: the fifth valve 300a, the fourth valve 240b, and the third valve 220b are sequentially closed.
To be noted:
in step S30, the operation is performed after the system operation is stabilized.
In step S50, the exhaust port of the first filter 230a is opened to ensure that no gas is trapped in the first filter 230 a.
After the valve is closed in step S70, the water in the second filter 230b and the second branch pipeline 210b does not need to be discharged, and the inside of the pipeline is moisturized by the water, so that the corrosion inside the pipeline is reduced. Of course, the water in the second branch pipe 210b should be drained in winter to avoid frost cracking of the pipe.
From the above, when it is desired to clean or maintain the second filter 230b, the method may refer to the steps of cleaning or maintaining the first filter 230a as described above.
The embodiment provides a water source heat pump system, when cleaning or maintaining the first filter 230a or the second filter 230b, the first heat pump main unit 270a or the second heat pump main unit 270b does not need to be stopped, i.e. the whole water source heat pump system can keep normal operation, and the operation is simpler and more economical. Meanwhile, when the system normally operates, other processes can continuously operate, and therefore production efficiency is improved.
Example two
Referring to fig. 1 to 4, a water source heat pump system provided in the present embodiment belongs to the technical field of renewable energy utilization. The present embodiment is an improvement on the technology of the first embodiment, and compared with the first embodiment, the difference is that:
referring to fig. 3, in the present embodiment, the water source heat pump system includes a first circulating water pump 400a and a second circulating water pump 400b, wherein the first circulating water pump 400a is disposed between the first valve 220a and the main water supply pipeline 100, and the second circulating water pump 400b is disposed between the third valve 220b and the main water supply pipeline 100. That is, the first circulation water pump 400a is disposed on the first branch pipe 210a, the second circulation water pump 400b is disposed on the second branch pipe 210b, the first circulation water pump 400a may provide the water for the first heat pump subsystem 200a, and the second circulation water pump 400b may provide the water for the second heat pump subsystem 200 b.
In this embodiment, the water source heat pump system further includes a second bypass line 600 and a sixth valve 600 a. One end of the second bypass line 600 is connected to the water inlet end of the first valve 220a, and the other end of the second bypass line 600 is connected to the water inlet end of the third valve 220 b. The second bypass pipeline 600 is provided with a sixth valve 600a, and the first branch pipeline 210a and the second branch pipeline 210b can be switched on and off by controlling the switch of the sixth valve 600 a.
Further, in the present embodiment, a seventh valve 410 is provided at the water inlet end of the first and second circulating water pumps 400a and 400 b. By controlling the on-off of the seventh valve 410, the water body can be selectively controlled to enter the first heat pump subsystem 200a or the second heat pump subsystem 200 b.
In some embodiments, the sixth valve 600a and the seventh valve 410 may also be selected to be electric valves or manual valves. In this embodiment, the sixth valve 600a and the seventh valve 410 are both selected as electric valves, i.e. the electric control switches can be turned on or off, so as to improve the automation degree of the system, and the operation is more convenient. Optionally, the sixth valve 600a and the seventh valve 410 are each selected to be electrically operated butterfly valves.
Referring to fig. 3 and 4, in the water source heat pump system provided in the present embodiment, when the first filter 230a is clogged during the operation of the first heat pump subsystem 200a, the steps of cleaning or maintaining the first filter 230a are as follows:
s100: first, the sixth valve 600a on the second bypass line 600, the third valve 220b and the fourth valve 240b at both ends of the second strainer 230b in the second heat pump subsystem 200b are opened, so that the second strainer 230b is communicated with the first branch line 210 a;
s200: then, the fifth valve 300a on the first bypass line 300 is opened, and the second filter 230b is connected to the first heat pump subsystem 200 a;
s300: a first valve 220a and a second valve 240a closing both ends of the first filter 230 a;
s400: cleaning or servicing the filter cartridge in the first filter 230 a;
s500: after cleaning or maintenance is completed, the first valve 220a at the water inlet end of the first filter 230a is opened to allow the water to enter the first filter 230a and fill the whole first filter 230a, so as to ensure that no gas is mixed in the first filter 230 a;
s600: then the second valve 240a at the outlet end of the second filter 230b is opened, so that the first filter 230a is connected to the system;
s700: the fifth valve 300a, the fourth valve 240b, the third valve 220b, and the sixth valve 600a are sequentially closed.
For the operation notice of the steps S300, S600, S700, reference may be made to S30, S60, S70 in the above embodiments, which are not repeated in this embodiment.
The water source heat pump system provided by the present embodiment also completes the cleaning or maintenance of the first filter 230a or the second filter 230b without stopping the entire system. The operation is simpler and more economical, and the production efficiency is improved.
EXAMPLE III
Referring to fig. 3 to 5, a water source heat pump system provided in this embodiment belongs to the technical field of renewable energy utilization. The present embodiment is an improvement on the technology of the second embodiment, and compared with the second embodiment, the difference is that:
referring to fig. 5, in the present embodiment, the fifth valve 300a and the sixth valve 600a are selected to be three-way valves, wherein two ports of the fifth valve 300a are connected to the first bypass pipeline 300 respectively, and two ports of the sixth valve 600a are connected to the second bypass pipeline 600 respectively.
Further, in this embodiment, the source heat pump system further includes an auxiliary filter 700, a water inlet end of the auxiliary filter 700 is connected to the third port of the sixth valve 600a through a pipeline, and a water outlet of the auxiliary filter 700 is connected to the third port of the fifth valve 300 a.
Optionally, the fifth valve 300a and the sixth valve 600a are selected to be electric three-way valves, so that convenience in operation is improved.
In a normal operation state of the system, the auxiliary strainer 700 is not in communication with the first bypass line 300 and the second bypass line 600, and the auxiliary strainer 700 is used only when the first strainer 230a or the second strainer 230b is cleaned or maintained.
For example, when the first filter 230a is cleaned or maintained, the fifth valve 300a and the sixth valve 600a are first controlled, so that the auxiliary filter 700 is communicated with the first bypass line 300 and the second bypass line 600, that is, the water in the first branch line 210a passes through the auxiliary filter 700 and enters the first heat pump main unit 270a again. The first valve 220a and the second valve 240a on both ends of the first filter 230a are then closed, so that the first filter 230a can be cleaned or maintained without shutting down the system.
Similarly, when cleaning or maintaining the second filter 230b, reference may be made to the above-described manner.
Thus, in this embodiment, the auxiliary filter 700 may serve as a shared backup for the first heat-pump sub-system 200a and the second heat-pump sub-system 200 b.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means 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 application. 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 application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A water source heat pump system is characterized by comprising a main water supply pipeline, a first heat pump subsystem, a second heat pump subsystem and a first bypass pipeline;
the main water supply pipeline is used for conveying water from a water source;
the first heat pump subsystem comprises a first valve, a first filter, a second valve and a first heat pump host which are sequentially connected, and the water inlet end of the first valve and the water outlet end of the first heat pump host are respectively connected with the main water supply pipeline;
the second heat pump subsystem comprises a third valve, a second filter, a fourth valve and a second heat pump main machine which are sequentially connected, and the water inlet end of the third valve and the water outlet end of the second heat pump main machine are respectively connected with the main water supply pipeline;
one end of the first bypass pipeline is connected between the water outlet end of the second valve and the water inlet end of the first heat pump host, the other end of the first bypass pipeline is connected between the water outlet end of the fourth valve and the water inlet end of the second heat pump host, and a fifth valve is arranged on the first bypass pipeline.
2. The water source heat pump system according to claim 1, wherein the water outlet ends of the first and second filters are provided with a first and second pressure detection device respectively.
3. The waterhead heat pump system as claimed in claim 1, further comprising a first circulating water pump and a second circulating water pump, wherein the first circulating water pump and the second circulating water pump are arranged in parallel on the main water supply pipeline, and the first circulating water pump and the second circulating water pump are both located upstream of the main water supply pipeline in the water conveying direction.
4. The water source heat pump system according to claim 1, further comprising a first circulating water pump and a second circulating water pump;
the first circulating water pump is arranged between the first valve and the main water supply pipeline;
the second circulating water pump is arranged between the third valve and the main water supply pipeline.
5. The water source heat pump system according to claim 4, further comprising a second bypass pipeline, wherein two ends of the second bypass pipeline are respectively connected with the water inlet end of the first valve and the water inlet end of the third valve, and a sixth valve is disposed on the second bypass pipeline.
6. The waterhead heat pump system of claim 5, further comprising an auxiliary filter, wherein the fifth valve and the sixth valve are both three-way valves, and the auxiliary filter connects the fifth valve and the sixth valve, respectively.
7. The waterhead heat pump system of claim 6, wherein the fifth valve and the sixth valve are both electrically operated three-way valves.
8. The water source heat pump system according to any one of claims 3-7, wherein the water inlet ends of the first circulating water pump and the second circulating water pump are provided with seventh valves.
9. The water source heat pump system as claimed in claim 1, wherein the water inlet ends of the first heat pump main unit and the second heat pump main unit are provided with eighth valves.
10. The waterhead heat pump system according to claim 1 or 9, wherein the water outlet ends of the first heat pump main unit and the second heat pump main unit are connected to the main water supply pipeline through a return pipeline, the waterhead heat pump system further comprises a ninth valve disposed on the main water supply pipeline, and the water outlet end of the ninth valve is connected to the return pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121164927.0U CN215295438U (en) | 2021-05-27 | 2021-05-27 | Water source heat pump system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121164927.0U CN215295438U (en) | 2021-05-27 | 2021-05-27 | Water source heat pump system |
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| CN215295438U true CN215295438U (en) | 2021-12-24 |
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| CN202121164927.0U Active CN215295438U (en) | 2021-05-27 | 2021-05-27 | Water source heat pump system |
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