CN219868260U - Air conditioner cold and hot source control system - Google Patents
Air conditioner cold and hot source control system Download PDFInfo
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- CN219868260U CN219868260U CN202321199161.9U CN202321199161U CN219868260U CN 219868260 U CN219868260 U CN 219868260U CN 202321199161 U CN202321199161 U CN 202321199161U CN 219868260 U CN219868260 U CN 219868260U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 173
- 238000001816 cooling Methods 0.000 claims description 19
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an air conditioner cold and hot source control system, which comprises a chilled water supply pipeline, a hot water supply pipeline, a chilled water return pipeline, a hot water return pipeline, a PLC (programmable logic controller), an air-cooled chiller, a four-pipe air-cooled heat pump unit, a first air-cooled heat pump unit, a second air-cooled heat pump unit and a plurality of water pumps, wherein the water pumps comprise a hot water pump, a chilled water pump and a standby water pump, and the hot water pump, the chilled water pump and the standby water pump are connected through pipelines; and a temperature sensor is arranged on the chilled water return pipeline and the hot water return pipeline. The cold and heat source control system of the air conditioner can meet the requirements of the tail end of the air conditioner on cold and heat sources, can automatically allocate according to the actual requirements of the tail end, controls the running mode of the air conditioner, and realizes automatic switching and rapid adjustment of the cold and heat modes of a unit.
Description
Technical Field
The utility model relates to a cold and heat source control system, in particular to an air conditioner cold and heat source control system.
Background
Fuel cells are chemical devices that directly convert chemical energy of fuel into electrical energy, and fuel cell laboratories need to meet strict environmental control requirements to ensure accuracy and reliability of experiments, minimize environmental impact on fuel cell experiments, especially in terms of temperature control, and thus are often provided with air conditioning cold and heat source systems in the laboratory that can accurately control indoor temperature, which often requires the use of accurate temperature sensors and controllers to keep indoor temperature stable.
The conventional air conditioner cold and heat source system cannot meet the requirements of the air conditioner tail end on cold and heat sources at the same time, and cannot be automatically allocated according to the actual requirements of the tail end, so that automatic switching of unit cold and heat modes and rapid adjustment of load change cannot be realized, and unstable operation of a laboratory air conditioner cold and heat source control system can be caused.
Disclosure of Invention
In view of the above-mentioned shortcomings of the existing cold and heat source control system, the utility model provides an air conditioner cold and heat source control system, which can realize automatic switching of unit cold and heat modes and meet the demands of the tail end of an air conditioner on cold and heat sources.
In order to achieve the above purpose, the embodiment of the present utility model adopts the following technical scheme:
the air conditioner cold and hot source control system comprises a water supply pipeline and a water return pipeline, wherein the water supply pipeline comprises a chilled water supply pipeline and a hot water supply pipeline, the water return pipeline comprises a chilled water return pipeline and a hot water return pipeline, the air conditioner cold and hot source control system further comprises a PLC (programmable logic controller), an air cooling water chilling unit, an air cooling heat pump unit and a plurality of water pumps, the air cooling heat pump unit comprises a four-pipe air cooling heat pump unit, a first air cooling heat pump unit and a second air cooling heat pump unit, and the air cooling water chilling unit, the air cooling heat pump unit and the water pumps are all connected with the water supply pipeline and the water return pipeline through pipelines; the water pump comprises a hot water pump, a chilled water pump and a standby water pump, and the hot water pump, the chilled water pump and the standby water pump are connected through pipelines; and a temperature sensor is arranged on the chilled water return pipeline and the hot water return pipeline.
According to one aspect of the utility model, the temperature sensor comprises a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is arranged on the hot water return pipeline, and the second temperature sensor is arranged on the chilled water return pipeline.
According to one aspect of the present utility model, the chilled water supply line is provided with a third temperature sensor and the hot water supply line is provided with a fourth temperature sensor.
According to one aspect of the utility model, a plurality of valves including a valve V1, a valve V2, a valve V3, a valve V4, a valve V5, a valve V6, a valve V7 and a valve V8 are arranged on the pipelines connected among the first air-cooled heat pump unit, the second air-cooled heat pump unit and the air-cooled water chilling unit, and the valves are all electric switch valves.
According to one aspect of the utility model, the valves V1, V2, V3, V4, V5, V6, V7, V8 are connected to and controlled by the PLC controller.
According to one aspect of the utility model, the air-cooled heat pump unit and the air-cooled cold water unit are connected with the PLC through a Modbus industrial bus protocol.
According to one aspect of the utility model, the water supply pipeline is provided with an electromagnetic flowmeter, the electromagnetic flowmeter comprises a first electromagnetic flowmeter and a second electromagnetic flowmeter, the first electromagnetic flowmeter is arranged on the chilled water supply pipeline, and the second electromagnetic flowmeter is arranged on the hot water supply pipeline.
According to one aspect of the utility model, a pipeline is connected between the chilled water supply pipeline and the chilled water return pipeline, and a valve V9 is arranged on the pipeline connected between the chilled water supply pipeline and the chilled water return pipeline.
According to one aspect of the utility model, a pipeline is connected between the hot water supply pipeline and the hot water return pipeline, and a valve V10 is arranged on the pipeline connected between the hot water supply pipeline and the hot water return pipeline.
The implementation of the utility model has the advantages that: the utility model provides an air conditioner cold and hot source control system which comprises a chilled water supply pipeline, a hot water supply pipeline, a chilled water return pipeline, a hot water return pipeline, a PLC (programmable logic controller), an air-cooled chiller, a four-pipe air-cooled heat pump unit, a first air-cooled heat pump unit, a second air-cooled heat pump unit and a plurality of water pumps, wherein the water pumps comprise a hot water pump, a chilled water pump and a standby water pump, and the hot water pump, the chilled water pump and the standby water pump are connected through pipelines; the system can meet the requirements of the tail end of the air conditioner on cold and heat sources, can automatically allocate according to the actual requirements of the tail end, controls the running mode of the air conditioner, and realizes automatic switching and rapid adjustment of the cold and heat modes of the unit.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a connection structure of an air conditioner cold and heat source control system according to the present utility model.
In the figure: 1. four-pipe air-cooled heat pump unit; 2. an air-cooled chiller unit; 3. a first air-cooled heat pump unit; 4. the second air-cooled heat pump unit; 5. a standby water pump; 6. a chilled water pump; 7. a hot water pump; 8. a first electromagnetic flowmeter; 9. a second electromagnetic flowmeter; 10. a chilled water supply line; 11. a hot water supply pipe; 12. chilled water return lines; 13. hot water return pipe.
Detailed Description
In the description of the present utility model, it should be understood that the terms "center," "longitudinal," "transverse," "up," "down," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and to simplify 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 the like 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 defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
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, for example, fixedly connected, detachably connected, or integrally connected: can be mechanically or electrically connected: 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 can be understood by those of ordinary skill in the art in a specific case.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
As shown in fig. 1, an air conditioner cold and hot source control system includes a water supply pipe including a chilled water supply pipe 10 and a hot water supply pipe 11, and a return pipe including a chilled water return pipe 12 and a hot water return pipe 13.
In practical application, the air conditioner cold and heat source control system further comprises a PLC controller, an air cooling water chilling unit 2, an air cooling heat pump unit and a plurality of water pumps, wherein the air cooling heat pump unit comprises a four-pipe air cooling heat pump unit 1, a first air cooling heat pump unit 3 and a second air cooling heat pump unit 4, a heat source inlet of the four-pipe air cooling heat pump unit 1 is connected with a hot water supply pipeline 11, a cold source inlet is connected with a chilled water supply pipeline 10, a heat source outlet is connected with a hot water return pipeline 13, and a cold source outlet is connected with a chilled water return pipeline 12.
In practical application, the air-cooled chiller 2, the air-cooled heat pump unit, the four-pipe air-cooled heat pump unit 1 and the plurality of water pumps are all connected with a water supply pipeline and a water return pipeline through pipelines; the water pump includes hot water pump 7, chilled water pump 6 and reserve water pump 5, is connected through the pipeline between hot water pump 7, chilled water pump 6 and the reserve water pump 5, and in this system, chilled water pump 6 is provided with four, and reserve water pump 5 is provided with one, and hot water pump 7 is provided with three. The input end of the chilled water pump 6 is connected with a chilled water supply pipeline 10, and the output end of the chilled water pump 6 is connected with a cold source inlet of the four-pipe refrigerating air-heating pump unit; the input end of the hot water pump 7 is connected with a hot water supply pipe, and the output end is connected with a heat source inlet of the four-pipe refrigerating air-heating pump unit; the input end of the standby water pump 5 is respectively connected with a chilled water supply pipeline 10 and a hot water supply pipeline 11, valves are respectively arranged between the input end of the standby water pump 5 and the chilled water supply pipeline 10 and the hot water supply pipeline 11, the output end of the standby water pump 5 is respectively connected with a cold source inlet and a heat source inlet of the four-pipe refrigerating wind heat pump unit, and valves are respectively arranged between the output end of the standby water pump 5 and the cold source inlet and the heat source inlet.
In practical application, the chilled water return pipe 12 and the hot water return pipe 13 are provided with temperature sensors. The temperature sensor comprises a first temperature sensor T1 and a second temperature sensor T2, wherein the first temperature sensor T1 is arranged on the hot water return pipeline 13, and the second temperature sensor T2 is arranged on the chilled water return pipeline 12;
the chilled water supply line 10 is provided with a third temperature sensor T3, and the hot water supply line 11 is provided with a fourth temperature sensor T4.
In practical application, a plurality of valves are arranged on pipelines connected among the first air-cooled heat pump unit 3, the second air-cooled heat pump unit 4 and the air-cooled water chilling unit 2, and the valves comprise a valve V1, a valve V2, a valve V3, a valve V4, a valve V5, a valve V6, a valve V7 and a valve V8, and the valves V1-V8 are all electric switch valves.
The valve V1, the valve V2, the valve V3, the valve V4, the valve V5, the valve V6, the valve V7 and the valve V8 are connected with the PLC and controlled by the PLC.
Further, the cold source inlet of the four-pipe air-cooled heat pump unit 1 is connected with the inlet end of the valve V1 through a pipeline, the outlet end of the valve V1 is connected with the inlet end of the air-cooled heat pump unit 2 through a pipeline, the outlet end of the valve V1 is connected with the inlet end of the valve V3 through a pipeline, the outlet end of the valve V3 is connected with the inlet end of the first air-cooled heat pump unit 3 through a pipeline, the outlet end of the valve V3 is connected with the inlet end of the valve V5 through a pipeline, the outlet end of the valve V5 is connected with the inlet end of the second air-cooled heat pump unit 4 through a pipeline, the heat source inlet of the four-pipe air-cooled heat pump unit 1 is connected with the inlet end of the valve V7 through a pipeline, and the outlet end of the valve V7 is connected with the outlet end of the valve V5 and the inlet end of the second air-cooled heat pump unit 4.
Further, the outlet end of the air-cooled chiller 2 is connected with the inlet end of the valve V2 through a pipeline, the outlet end of the valve V2 is connected with the chilled water return pipeline 12 through a pipeline, the outlet end of the first air-cooled chiller 3 is connected with the inlet end of the valve V4 through a pipeline, the outlet end of the valve V4 is connected with the inlet end of the valve V2 through a pipeline, the outlet end of the second air-cooled chiller 4 is connected with the inlet end of the valve V6 through a pipeline, the outlet end of the second air-cooled chiller 4 is connected with the inlet end of the valve V8 through a pipeline, and the inlet end of the valve V8 is connected with the hot water return pipeline 13 through a pipeline.
The air-cooled heat pump unit and the air-cooled water chiller 2 are connected with the PLC through a Modbus industrial bus protocol, and the PLC controls the automatic switching of the operation modes of the cold and heat source control system through temperature data detected by the temperature sensor.
In practical application, be equipped with electromagnetic flowmeter on the water supply pipe, electromagnetic flowmeter includes first electromagnetic flowmeter 8, second electromagnetic flowmeter 9, and first electromagnetic flowmeter 8 is located on the chilled water supply pipe 10, and second electromagnetic flowmeter 9 is located on the hot water supply pipe 11, and electromagnetic flowmeter is used for gathering total flow on chilled water supply pipe 10, the hot water supply pipe 11 and uploads the flow information who gathers to the PLC controller.
In practical application, a pipeline is connected between the chilled water supply pipeline 10 and the chilled water return pipeline 12, and a valve V9 is provided on the pipeline connected between the chilled water supply pipeline 10 and the chilled water return pipeline 12.
A pipeline is connected between the hot water supply pipeline 11 and the hot water return pipeline 13, and a valve V10 is arranged on the pipeline connected between the hot water supply pipeline 11 and the hot water return pipeline 13.
The working principle of the system is as follows: the temperatures of the chilled water return pipeline 12 and the hot water return pipeline 13 are fed back through the first temperature sensor T1 and the second temperature sensor T2, and which operation mode is selected is automatically judged. The system mainly comprises the following operation modes: 1. a summer mode; 2. a transition mode; 3. winter mode.
1. Summer mode: opening the valve V1, the valve V2, the valve V3, the valve V4, the valve V5 and the valve V6, closing the valve V7 and the valve V8, executing the cold and hot simultaneous mode by the four-pipe air-cooled heat pump unit 1, executing the refrigeration mode by the first air-cooled heat pump unit 3 and the second air-cooled heat pump unit 4, and executing the refrigeration mode by the air-cooled water chiller 2. In the mode, the PLC controls the on/off states of the air-cooled chiller 2, the first air-cooled heat pump unit 3 and the second air-cooled heat pump unit 4 according to the data of the second temperature sensor T2, and controls the on/off states of the four-pipe air-cooled heat pump unit 1 according to the data of the first temperature sensor T1.
2. Transition mode: opening the valve V1, the valve V2, the valve V7 and the valve V8, closing the valve V3, the valve V4, the valve V5 and the valve V6, and executing a cold and hot simultaneous mode by the four-pipe air-cooled heat pump unit 1, stopping the operation of the first air-cooled heat pump unit 3, executing a heating mode by the second air-cooled heat pump unit 4, and executing a refrigerating mode by the air-cooled water chiller unit 2. In this mode, the PLC controls the start/stop of the air-cooled chiller 2 according to the data of the second temperature sensor T2, and controls the start/stop of the four-pipe air-cooled heat pump unit 1 and the second air-cooled heat pump unit 4 according to the data of the first temperature sensor T1.
3. Winter mode: opening the valve V3, the valve V4, the valve V5, the valve V6, the valve V7 and the valve V8, closing the valve V1 and the valve V2, performing a heating mode by the four-pipe air-cooled heat pump unit 1, performing a heating mode by the first air-cooled heat pump unit 3 and the second air-cooled heat pump unit 4, and performing a cooling mode by the air-cooled water chiller 2. In the mode, the PLC controls the on/off of the air-cooled chiller 2 according to the data of the second temperature sensor T2, and controls the on/off of the four-pipe air-cooled heat pump unit 1, the first air-cooled heat pump unit 3 and the second air-cooled heat pump unit 4 according to the data of the first temperature sensor T1.
The system can simultaneously meet the requirements of the tail end of the air conditioner on the cold and heat sources in the actual use process, and can be automatically allocated according to the actual requirements of the tail end, thereby realizing the automatic fantasy of the cold and heat modes of the unit.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (9)
1. The air conditioner cold and hot source control system comprises a water supply pipeline and a water return pipeline, wherein the water supply pipeline comprises a chilled water supply pipeline (10) and a hot water supply pipeline (11), and the water return pipeline comprises a chilled water return pipeline (12) and a hot water return pipeline (13), and is characterized by further comprising a PLC (programmable logic controller), an air cooling water chilling unit (2), an air cooling heat pump unit and a plurality of water pumps, wherein the air cooling heat pump unit comprises a four-pipe air cooling heat pump unit (1), a first air cooling heat pump unit (3) and a second air cooling heat pump unit (4), and the air cooling water chilling unit (2), the air cooling heat pump unit and the water pumps are all connected with the water supply pipeline and the water return pipeline through pipelines; the water pump comprises a hot water pump (7), a chilled water pump (6) and a standby water pump (5), wherein the hot water pump (7), the chilled water pump (6) and the standby water pump (5) are connected through pipelines; and the chilled water return pipeline (12) and the hot water return pipeline (13) are provided with temperature sensors.
2. An air conditioner cold and heat source control system according to claim 1, wherein the temperature sensor comprises a first temperature sensor T1 and a second temperature sensor T2, the first temperature sensor T1 is arranged on a hot water return pipe (13), and the second temperature sensor T2 is arranged on a chilled water return pipe (12).
3. An air conditioner cold and hot source control system according to claim 2, wherein a third temperature sensor T3 is installed on the chilled water supply pipe (10), and a fourth temperature sensor T4 is installed on the hot water supply pipe (11).
4. The air conditioner cold and heat source control system according to claim 1, wherein a plurality of valves are installed on the pipelines connected between the first air-cooled heat pump unit (3), the second air-cooled heat pump unit (4) and the air-cooled water chiller unit (2), and each valve is an electric switch valve, and the valves comprise a valve V1, a valve V2, a valve V3, a valve V4, a valve V5, a valve V6, a valve V7 and a valve V8.
5. The air conditioner heat and cold source control system according to claim 4, wherein the valve V1, the valve V2, the valve V3, the valve V4, the valve V5, the valve V6, the valve V7 and the valve V8 are connected with the PLC controller and controlled by the PLC controller.
6. The air conditioner cold and hot source control system according to claim 5, wherein the air-cooled heat pump unit and the air-cooled cold water unit (2) are connected with the PLC through Modbus industrial bus protocol.
7. An air conditioner cold and hot source control system according to claim 1, wherein an electromagnetic flowmeter is arranged on the water supply pipeline, the electromagnetic flowmeter comprises a first electromagnetic flowmeter (8) and a second electromagnetic flowmeter (9), the first electromagnetic flowmeter (8) is arranged on the chilled water supply pipeline (10), and the second electromagnetic flowmeter (9) is arranged on the hot water supply pipeline (11).
8. An air conditioner cold and heat source control system according to claim 1, wherein a pipeline is connected between the chilled water supply pipeline (10) and the chilled water return pipeline (12), and a valve V9 is arranged on the pipeline connected between the chilled water supply pipeline (10) and the chilled water return pipeline (12).
9. An air conditioner cold and heat source control system according to claim 1, wherein a pipeline is connected between the hot water supply pipeline (11) and the hot water return pipeline (13), and a valve V10 is arranged on the pipeline connected between the hot water supply pipeline (11) and the hot water return pipeline (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321199161.9U CN219868260U (en) | 2023-05-18 | 2023-05-18 | Air conditioner cold and hot source control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321199161.9U CN219868260U (en) | 2023-05-18 | 2023-05-18 | Air conditioner cold and hot source control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219868260U true CN219868260U (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321199161.9U Active CN219868260U (en) | 2023-05-18 | 2023-05-18 | Air conditioner cold and hot source control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219868260U (en) |
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2023
- 2023-05-18 CN CN202321199161.9U patent/CN219868260U/en active Active
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