CN219222896U - Heat source tower heat pump system and heat source tower unit - Google Patents
Heat source tower heat pump system and heat source tower unit Download PDFInfo
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- CN219222896U CN219222896U CN202223254716.3U CN202223254716U CN219222896U CN 219222896 U CN219222896 U CN 219222896U CN 202223254716 U CN202223254716 U CN 202223254716U CN 219222896 U CN219222896 U CN 219222896U
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- heat source
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- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 230000008020 evaporation Effects 0.000 abstract description 7
- 238000001704 evaporation Methods 0.000 abstract description 7
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 238000012856 packing Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model discloses a heat source tower heat pump system and a heat source tower unit, and belongs to the field of heat pump air conditioning systems. The heat source tower heat pump system includes: at least two heat source towers connected in parallel, a heat source tower host and a cooling and heating terminal; at least one of the heat source towers is provided with a self-circulation system, the self-circulation system comprises a self-circulation pump, a first control valve and a self-circulation pipeline, and the self-circulation pump pumps solution in the heat source tower into the self-circulation pipeline and then conveys the solution into the heat source tower. The heat source tower heat pump system utilizes a self-circulation system to enable the solution in the heat source tower to be in contact with air with higher temperature so as to accelerate evaporation, so that the concentration of the solution is increased, and excessive moisture in the solution in the heat source tower is balanced.
Description
Technical Field
The utility model relates to the field of heat pump air conditioning systems, in particular to a heat source tower heat pump system and a heat source tower unit.
Background
Heat source tower heat pump systems have been widely used as winter heating sources in areas where heating is required. However, when the heat source tower works, the spray solution absorbs a large amount of moisture from the low-temperature high-humidity air, the concentration of the solution is reduced, the freezing point is raised, and the danger of freezing exists, so that the system cannot work stably and continuously. The prior art generally adopts ways of replenishing concentrated solution, storing dilute solution and the like so as to reduce the influence of absorbed moisture on the concentration of the solution, and the way has higher cost and needs to be provided with a dilute solution storage tank with huge volume, thereby occupying large space.
Disclosure of Invention
Based on the technical problems, the utility model provides a heat source tower heat pump system and a heat source tower unit for improving solution concentration by accelerating evaporation of solution by utilizing air with higher temperature.
Aiming at the technical problems, the utility model provides the following technical scheme:
a heat source tower heat pump system comprising: at least two heat source towers connected in parallel, a heat source tower host and a cooling and heating terminal; at least one of the heat source towers is provided with a self-circulation system, the self-circulation system comprises a self-circulation pump, a first control valve and a self-circulation pipeline, and the self-circulation pump pumps solution in the heat source tower into the self-circulation pipeline and then conveys the solution into the heat source tower.
In some embodiments of the present utility model, the input end of the self-circulation pipeline is connected to the water supply tray at the lower side of the heat source tower, and the output end of the self-circulation pipeline is connected to the water distribution tray at the upper side of the heat source tower.
In some embodiments of the present utility model, the heat source tower host includes an evaporator and a condenser, and an external circulation system is disposed between the heat source tower and the heat source tower host, and the external circulation system includes an external circulation pump, at least one second control valve, and an external circulation pipeline.
In some embodiments of the present utility model, the input end of the external circulation pipeline is connected to the water feeding tray at the lower side of the heat source tower, and the output end of the external circulation pipeline is connected to the water distribution tray at the upper side of the heat source tower.
In some embodiments of the present utility model, the external circulation pipeline includes a main pipeline and a branch pipeline, the main pipeline is communicated with the heat source tower host, and the plurality of heat source towers are communicated with the main pipeline through the branch pipeline.
In some embodiments of the present utility model, the external circulation pump is located on a main pipeline, and the second control valve is located on the branch pipeline, and includes a second output control valve located on an output pipeline of the heat source tower and a second input control valve located on an input pipeline of the heat source tower.
The utility model also provides a heat source tower unit, which comprises: at least two heat source towers connected in parallel with each other; the at least one heat source tower comprises: the self-circulation system comprises a self-circulation pump, a first control valve and a self-circulation pipeline, wherein the self-circulation pump pumps solution in the heat source tower into the self-circulation pipeline and then conveys the solution into the heat source tower.
In some embodiments of the present utility model, the input end of the self-circulation pipeline is connected to the water supply tray at the lower side of the heat source tower, and the output end of the self-circulation pipeline is connected to the water distribution tray at the upper side of the heat source tower.
In some embodiments of the present utility model, an air outlet area is further disposed on the upper side of the heat source tower body, and a fan is disposed in the air outlet area.
Compared with the prior art, the technical scheme of the utility model has the following technical effects:
in the heat source tower heat pump system and the heat source tower unit provided by the utility model, at least part of the heat source towers are provided with the self-circulation system, the self-circulation system enables the solution in the towers to be circularly supplied in the operation process, and the air with higher temperature is utilized to accelerate the evaporation of the solution, so that the concentration of the solution is increased, and excessive moisture in the solution in the heat source towers is balanced.
Drawings
The objects and advantages of the present utility model will be better understood by describing in detail preferred embodiments thereof with reference to the accompanying drawings in which:
FIG. 1 is a system configuration diagram of one embodiment of a heat source tower heat pump system provided by the present utility model;
fig. 2 is a schematic structural diagram of a heat source tower according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Referring to fig. 1, there is shown an embodiment of a heat source tower heat pump system according to the present utility model, the system includes: at least two heat source towers 10, a heat source tower main unit 20 and a cooling and heating terminal 30 connected in parallel with each other; at least one of the heat source towers 10 is provided with a self-circulation system 40, the self-circulation system 40 comprises a self-circulation pump 41, a first control valve 42 and a self-circulation pipeline 43, and the self-circulation pump 41 pumps the solution in the heat source tower 10 into the self-circulation pipeline 43 and then conveys the solution into the heat source tower 10.
Since the solution of the heat source tower 10 absorbs more moisture in the air in winter, especially in "low temperature and high humidity" weather conditions. When the air temperature is higher than the set value and the humidity is lower than the set value, the self-circulation system in the heat source tower heat pump system can be utilized to enable the solution in the heat source tower 10 to circularly flow, and in the flowing process, the air with higher temperature is utilized to accelerate evaporation of the solution, so that the concentration of the solution is increased to balance excessive moisture in the heat source tower.
Specifically, in an alternative embodiment, the input end of the self-circulation pipe 43 is connected to the lower side of the heat source tower 10 in the water supply tray 11, so as to avoid that the use of the self-circulation pump 41 is affected by the air mixed in the pipe; the output end of the self-circulation pipeline 43 is connected to the water distribution disc 12 on the upper side of the heat source tower 10, and water is distributed through the water distribution disc 12 to ensure that the solution and the filler are mixed more uniformly.
The heat source tower main unit 20 includes an evaporator and a condenser, an external circulation system 50 for finally providing cold or heat to the cold and heat supply terminal 30 is disposed between the heat source tower 10 and the heat source tower main unit 20, and the external circulation system 50 includes an external circulation pump 51, at least one second control valve 52, and an external circulation pipeline 53. When the heat pump system of the heat source tower performs heating circulation in winter, the output port of the heat source tower 10 is communicated with the evaporator of the heat source tower main unit 20 through the external circulation pipeline 53, and the solution flows back to the output port of the heat source tower 10 through the pipeline after passing through the heat source tower main unit 20 and the cooling and heating terminal 30.
Specifically, in an alternative embodiment, the input end of the external circulation pipeline 53 is connected to the water supply disc 11 at the lower side of the heat source tower 10, so as to avoid that the use of the self-circulation pump 41 is affected by the air mixed in the pipeline; the output end of the external circulation pipeline 53 is connected to the water distribution disc 12 on the upper side of the heat source tower 10, and water is distributed through the water distribution disc 12 to ensure that the solution and the filler are mixed more uniformly.
Specifically, in an alternative embodiment, the external circulation pipeline 53 includes a main pipeline 53a and a branch pipeline 53b, one end of the main pipeline 53a is communicated with the input and output ports of the heat source tower main unit 20, the other end is communicated with a plurality of branch pipelines 53b, and a plurality of heat source towers 10 are communicated with the main pipeline 53a through the branch pipelines 53 b.
More specifically, the external circulation pump 51 is located on the main line 53a, and the second control valve 52 is located on the branch line 53b, which includes a second output control valve 52a located on the output line of the heat source tower 10 and a second input control valve 52b located on the input line of the heat source tower 10. The second input control valve 52b and the second output control valve 52a are provided for the input and output lines of each heat source tower 10, respectively.
The following describes an operation flow of the heat source tower heat pump system under different environmental conditions, taking the heat source tower heat pump system shown in fig. 1 as an example. The heat source tower heat pump system includes two heat source towers 10 (heat source towers 10 of No. I and No. II) having an internal circulation system and one heat source tower 10 (heat source tower 10 of No. III) having no internal circulation system.
When the outdoor ambient temperature is low, the solution in each heat source tower 10 is circulated by the external circulation shower, and at this time, the external circulation pump 51 and the second control valve 52 are opened, and the first control valve 42 and the self-circulation pump 41 are closed. The solution with higher temperature enters the evaporator from the input port of the heat source pump host and exchanges heat with the refrigerant in the evaporator, after the heat exchange, the solution with lower temperature enters the water distribution disc 12 of the heat source tower 10 from the output port of the heat source pump host, the solution respectively enters the three heat source towers 10 through the second input control valves 52b, the low-temperature solution respectively enters the water return pipe of the heat source tower 10 through the second output control valves 52a after the heat exchange and the temperature rise in the heat source tower 10, and the heated solution is conveyed into the evaporator by the external circulation pump 51 to complete circulation.
When the outdoor environment temperature is higher, the circulation mode of the solution in the No. III heat source tower 10 is external circulation spraying, at the moment, the external circulation pump 51 is started, the second control valve 52 of the No. III heat source tower 10 is opened, and the second control valves 52 of the No. I heat source tower 10 and the No. II heat source tower 10 are closed; the solution circulation modes of the heat source tower 10 No. I and the heat source tower 10 No. II are self-circulation, and at this time, the first control valve 42 and the self-circulation pump 41 are opened. When the III-type heat source tower 10 performs external circulation spraying, the solution with higher temperature enters the evaporator from the input port of the heat source pump host and exchanges heat with the refrigerant in the evaporator, after the heat exchange, the solution with lower temperature enters the III-type heat source tower 10 from the output port of the heat source pump host through the second input control valve 52b, the low-temperature solution enters the return pipe of the heat source tower 10 from the second output control valve 52a after the heat exchange and the temperature rise in the heat source tower 10, and the heated solution is conveyed into the evaporator by the external circulation pump 51 to complete the circulation. When the heat source towers 10 and 10, 10 carry out self-circulation spraying, the solution in the solution tank is conveyed into the water distribution disc 12 at the top of the heat source tower 10 by the self-circulation pump 41, the solution contacts with air with higher temperature in the tower body to realize self-circulation concentration, and when the liquid level in the solution tank is reduced to a set value due to concentration, the second input control valve 52b of the heat source tower 10 is opened to supplement the dilute solution. When the concentration of the dilute solution in the system gradually decreases, the second output control valve 52a is opened to replenish the concentrated solution into the system to balance the moisture in the air accumulated in the solution of the heat source tower 10 in the "low temperature and high humidity" weather.
The utility model also provides a concrete implementation mode of the heat source tower unit, wherein the heat source tower unit comprises at least two heat source towers 10 which are connected in parallel; as shown in fig. 2, at least one heat source tower 10 includes: the heat source tower comprises a heat source tower body 10a, wherein a packing area A positioned in a middle area, a water supply area positioned at the lower side of the packing area A, and a water distribution area and an air outlet area positioned at the upper side of the packing area A are arranged in the heat source tower body 10 a; wherein, the heat source tower body 10a is communicated with the heat source tower main machine 20 through an output port 10a1 communicated with the water supply area and an input port 10a2 communicated with the water distribution area. The heat source tower further comprises a self-circulation system 40 connected to the heat source tower body 10a, the self-circulation system 40 comprises a self-circulation pump 41, a first control valve 42 and a self-circulation pipeline 43, and the self-circulation pump 41 pumps the solution in the heat source tower 10 into the self-circulation pipeline 43 and then conveys the solution into the heat source tower 10.
And part of the heat source tower body of the heat source tower unit is connected with the self-circulation system, and the air with higher temperature is utilized to accelerate the evaporation of the solution, so that the concentration of the solution is increased to balance excessive moisture in the heat source tower. Furthermore, the packing in the heat source tower also increases the contact area between the solution and the air, so that the evaporation speed of the solution is further improved.
Specifically, in an alternative embodiment, the air outlet area is provided with a fan 13 to accelerate the convection speed of air inside the heat source tower, so that the evaporation speed of the solution from the circulation system 40 is increased.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present utility model.
Claims (9)
1. A heat source tower heat pump system, comprising:
at least two heat source towers connected in parallel, a heat source tower host and a cooling and heating terminal;
at least one of the heat source towers is provided with a self-circulation system, the self-circulation system comprises a self-circulation pump, a first control valve and a self-circulation pipeline, and the self-circulation pump pumps solution in the heat source tower into the self-circulation pipeline and then conveys the solution into the heat source tower.
2. A heat source tower heat pump system according to claim 1, wherein the input end of the self-circulation pipeline is connected to the water supply tray at the lower side of the heat source tower, and the output end of the self-circulation pipeline is connected to the water distribution tray at the upper side of the heat source tower.
3. The heat source tower heat pump system according to claim 1, wherein the heat source tower main unit comprises an evaporator and a condenser, an external circulation system is provided between the heat source tower and the heat source tower main unit, and the external circulation system comprises an external circulation pump, at least one second control valve and an external circulation pipeline.
4. A heat source tower heat pump system according to claim 3, wherein the input end of the external circulation pipeline is connected to the water supply tray at the lower side of the heat source tower, and the output end of the external circulation pipeline is connected to the water distribution tray at the upper side of the heat source tower.
5. A heat source tower heat pump system as recited in claim 4 wherein said external circulation line includes a main line and a branch line, said main line communicating with said heat source tower main unit, a plurality of said heat source towers communicating with said main line through said branch line.
6. A heat source tower heat pump system according to claim 5, wherein the external circulation pump is located on a main pipeline, and the second control valve is located on the branch pipeline, and comprises a second output control valve located on an output pipeline of the heat source tower and a second input control valve located on an input pipeline of the heat source tower.
7. A heat source tower unit, comprising:
at least two heat source towers connected in parallel with each other; the at least one heat source tower comprises:
the self-circulation system comprises a self-circulation pump, a first control valve and a self-circulation pipeline, wherein the self-circulation pump pumps solution in the heat source tower into the self-circulation pipeline and then conveys the solution into the heat source tower.
8. The heat source tower unit according to claim 7, wherein the input end of the self-circulation pipeline is connected to the water supply tray at the lower side of the heat source tower, and the output end of the self-circulation pipeline is connected to the water distribution tray at the upper side of the heat source tower.
9. The heat source tower unit according to claim 8, wherein an air outlet area is further provided on the upper side of the heat source tower body, and a fan is provided in the air outlet area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223254716.3U CN219222896U (en) | 2022-12-05 | 2022-12-05 | Heat source tower heat pump system and heat source tower unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223254716.3U CN219222896U (en) | 2022-12-05 | 2022-12-05 | Heat source tower heat pump system and heat source tower unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219222896U true CN219222896U (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223254716.3U Active CN219222896U (en) | 2022-12-05 | 2022-12-05 | Heat source tower heat pump system and heat source tower unit |
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| Country | Link |
|---|---|
| CN (1) | CN219222896U (en) |
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- 2022-12-05 CN CN202223254716.3U patent/CN219222896U/en active Active
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