CN220083362U - System for be used for cooling tower test heat supply and computer lab to supply cold - Google Patents
System for be used for cooling tower test heat supply and computer lab to supply cold Download PDFInfo
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- CN220083362U CN220083362U CN202321061454.0U CN202321061454U CN220083362U CN 220083362 U CN220083362 U CN 220083362U CN 202321061454 U CN202321061454 U CN 202321061454U CN 220083362 U CN220083362 U CN 220083362U
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- 238000001816 cooling Methods 0.000 title claims abstract description 175
- 238000012360 testing method Methods 0.000 title claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 277
- 239000000523 sample Substances 0.000 claims abstract description 34
- 239000000498 cooling water Substances 0.000 claims description 52
- 238000001704 evaporation Methods 0.000 claims description 25
- 230000008020 evaporation Effects 0.000 claims description 22
- 230000005494 condensation Effects 0.000 claims description 11
- 238000009833 condensation Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 16
- 239000003570 air Substances 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Abstract
The utility model relates to a system for testing heat supply and cooling of a machine room by a cooling tower and a control method, wherein the hot end of the system heats cooling circulating water in a cooling tower testing loop, the cold end of the system cools part of the cooling circulating water in the cooling loop of the machine room by cooling, the cooling system comprises a water chilling unit, a chilled water outlet temperature sensing probe, a chilled water return temperature sensing probe, a chilled water pump, a plate heat exchanger, a plate change-out water temperature sensing probe, a check valve, an electric valve, a cooling pump, a first pipeline, a second pipeline, a third pipeline and a controller, the controller regulates the running power of the water chilling unit in real time so that the outlet water temperature continuously reaches the target testing temperature under the set flow, and the controller controls the running frequency of the cooling pump so that the chilled water continuous temperature of a hot end outlet of the plate heat exchanger is at the second set temperature. The utility model not only realizes the heat supply requirement of the cooling tower test, but also utilizes the cold quantity to cool the machine room, thereby reducing the power consumption of the machine room refrigerating system.
Description
Technical Field
The utility model relates to the field of evaporative cooling and heat exchange products and control, in particular to a system for testing heat supply and cooling of a machine room of a cooling tower.
Background
The cooling tower is a kind of heat sink in which water exchanges heat with air sufficiently to lower the temperature of hot water to a target temperature. In the development and production of cooling towers, the cooling capacity of the cooling towers is tested, and is usually 100-500m 3 And (3) carrying out actual condition simulation on circulating hot water with the temperature of 37 ℃, generally firing the hot water by using a boiler, and then cooling the hot water by using a cooling tower to complete the whole test process.
Today, for some large enterprises of data centers, in order to further pursue consumption reduction and energy saving of the data centers, some enterprises of data centers also perform research and development design of cooling towers at the same time, or test the cooling towers of the enterprises of cooling towers in the data centers to obtain better test data, if the boiler is used for heating, the large requirements and consumption are caused on occupied area and energy, so that the test cost is greatly increased.
In a data center, a water chilling unit is generally used for cooling a machine room, and at the same time, a great amount of heat is generated during cooling, a cooling tower with good performance is generally required for cooling a condensation end of the machine room, a large amount of circulating water with higher temperature is required for testing the cooling tower, and the water chilling unit is required for releasing condensation pressure, so that a system which can be used for testing the cooling tower for heating and providing a cold source for the machine room is required to be faced.
Disclosure of Invention
In order to overcome the defects of the existing products and technologies, the utility model provides a system for testing heat supply and cooling of a machine room by using a cooling tower, which can stably provide cooling circulating water with higher temperature for the test of the cooling tower and can provide a cold source for the machine room, thereby solving the problems of large occupied area and more energy sources in the test of the cooling tower and the problems of consumption reduction and energy conservation in the cooling of the machine room.
The technical scheme of the embodiment of the utility model is as follows:
the system comprises a chiller, a chilled water outlet temperature sensing probe, a chilled water return temperature sensing probe, a chilled water pump, a plate heat exchanger, a plate change water temperature sensing probe, a check valve, an electric valve, a cold discharge pump, a first pipeline, a second pipeline, a third pipeline and a controller, wherein a water inlet of an evaporation heat exchange end of the chiller is communicated with a water outlet end of the chilled water pump through a first pipeline, a water inlet end of the chilled water pump is communicated with a water outlet end of the plate heat exchanger through a pipeline, a cold water inlet end of the plate heat exchanger is communicated with a water outlet of an evaporation heat exchange end of the chiller through a second pipeline, the chilled water return water temperature sensing probe is positioned in the first pipeline, the chilled water outlet temperature sensing probe is positioned in the second pipeline, cooling circulating water in the chiller test loop enters the chiller, enters the condenser heat exchange end through the first pipeline, the electric heat exchange valve is communicated with the water inlet end of the chiller through the electric heat exchange plate, the water inlet end of the chiller is communicated with the water outlet end of the chiller, the electric heat exchange plate heat exchange end of the chiller is communicated with the water inlet of the chiller through the electric heat exchange plate, the water outlet of the chiller is communicated with the water outlet of the water return pump through the check valve, the controller adjusts the running power of the water chilling unit in real time to enable the water outlet temperature of the condensation heat exchange end of the water chilling unit to continuously reach the target test temperature under the set flow, the controller controls the running frequency of the chilled water pump to enable the water outlet temperature continuous temperature of the evaporation heat exchange end of the water chilling unit to be at the first set temperature, the controller controls the switch of the electric valve according to the opening of the water chilling unit, and the controller controls the running frequency of the cooling pump to enable the chilled water continuous temperature of the hot end water outlet of the plate heat exchanger to be at the second set temperature.
Preferably, the system further comprises a cooling tower, a butterfly valve and a second check valve, wherein the flow stopping end of the second check valve is communicated with the water inlet end of the chilled water pump through a pipeline, the flow guiding end of the second check valve is communicated with the water outlet of the cooling tower through a pipeline, the water inlet of the cooling tower is communicated with one end of the butterfly valve through a pipeline, the other end of the butterfly valve is communicated with the water outlet of the evaporation heat exchange end of the water chilling unit through a pipeline, and the controller further controls the rotating speed of the fan of the cooling tower to enable the continuous water outlet temperature of the evaporation heat exchange end of the water chilling unit to be at a first set temperature.
Preferably, the cooling tower test loop comprises a cooling water supply temperature sensing probe, a cooling water return temperature sensing probe, a cooling water pump and a cooling tower to be tested, wherein a water outlet of the cooling water pump is communicated with a water inlet of a condensation heat exchange end of the water chilling unit through a pipeline, a water inlet of the cooling water pump is communicated with a water outlet of the cooling tower through a pipeline, the cooling water supply temperature sensing probe is communicated with a water outlet of the condensation heat exchange end of the water chilling unit through a pipeline, the cooling water return temperature sensing probe is communicated with the cooling tower and the pipeline of the water chilling unit, and the controller controls the cooling water pump to work and operate at a set frequency.
Compared with the prior art, the utility model has the beneficial effects that:
the heat generated by the cold water machine for cooling by the data center is used for providing constant-flow constant-temperature cooling circulating water for the test cooling tower, so that the energy and the occupied area required by the test of the cooling tower are saved; the controller controls the running power of the water chiller and the running frequency of the chilled water pump to realize that the temperature values of the evaporating end and the condensing end of the water chiller respectively reach set values, so that the cooling circulating water with constant flow and constant temperature is provided for the test cooling tower, and meanwhile, the cooling capacity is provided for the machine room, and the power consumption of an external cooling source is reduced; the controller controls the cooling pump to achieve the consistency of the cooling temperature of the machine room and the temperature of the external cold source, and the temperature property of the cooling temperature of the machine room is maintained.
Drawings
FIG. 1 is a schematic diagram of a system for testing heat supply and cooling of a machine room for a cooling tower according to the present utility model;
FIG. 2 is a schematic diagram of a system for testing heat supply and cooling of a machine room for a cooling tower according to the second embodiment of the present utility model;
FIG. 3 is a flow chart of a control method of a system for cooling tower test heating and machine room cooling in accordance with the present utility model;
10. a water chiller; 11. chilled water outlet temperature sensing probe; 12. chilled water return temperature sensing probe; 13. the method comprises the steps of carrying out a first treatment on the surface of the A chilled water pump; 14. a plate heat exchanger; 15. the plate is replaced by a water temperature sensing probe; 16. a check valve; 17. an electric valve; 18. a cooling pump; 19. a first pipe; 20. a second pipe; 21. a third conduit; 22. a water supply pipe; 23. a water return pipe; 24. air conditioning of a machine room; 25. cooling the cooling tower; 26. butterfly valve; 27. a second check valve; 28. cooling the water supply temperature sensing probe; 29. cooling back the water temperature sensing probe; 30. a cooling water pump; 31. and (5) a cooling tower.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
As shown in fig. 1, fig. 1 is a schematic diagram of a system for testing heat supply and cooling of a machine room by a cooling tower according to the present utility model; the system comprises a chiller 10, a chilled water outlet temperature sensing probe 11, a chilled water return temperature sensing probe 12, a chilled water pump 13, a plate heat exchanger 14, a plate water outlet temperature sensing probe 15, a check valve 16, an electric valve 17, a cold discharge pump 18, a first pipeline 19, a second pipeline 20, a third pipeline 21 and a controller, wherein a water inlet of an evaporation heat exchange end of the chiller is communicated with a water outlet end of the chilled water pump through the first pipeline, a water inlet end of the chilled water pump is communicated with a cold end water outlet of the plate heat exchanger through the pipeline, a cold end water inlet of the plate heat exchanger is communicated with a water outlet of an evaporation heat exchange end of the chiller through the second pipeline, the chilled water return temperature sensing probe is positioned in the first pipeline, the chilled water outlet temperature sensing probe is positioned in the second pipeline, the cooling heat exchange end of the chiller is communicated with a water inlet of the electric valve through the electric valve, a water outlet end of the chiller is communicated with a water outlet of the plate heat exchange loop through the electric valve, a water inlet of the cold water inlet of the chiller is communicated with a water outlet of the plate heat exchange loop through the third pipeline, a water outlet of the cold exchange end of the chiller is communicated with a water outlet of the plate heat exchange loop through the check valve, the other end of the electric valve is communicated with a water return pipe 23 in the machine room cooling loop through a pipeline, the controller adjusts the running power of the water chilling unit in real time so that the water outlet temperature of the condensation heat exchange end of the water chilling unit continuously reaches the target test temperature under the set flow, the controller controls the running frequency of the chilled water pump so that the water outlet temperature continuous temperature of the evaporation heat exchange end of the water chilling unit is at the first set temperature, the controller controls the switch of the electric valve according to the opening of the water chilling unit, and the controller controls the running frequency of the cooling pump so that the chilled water continuous temperature of the hot end water outlet of the plate heat exchanger is at the second set temperature.
The system provided by the utility model uses the water chilling unit to generate heat, so as to provide hot water required by the test of the cooling tower, and meanwhile, the cold energy generated by the water chilling unit is connected into the machine room cooling system to cool the machine room, so that the full utilization of energy is realized, and the purpose of energy conservation is achieved. The heat of the hot water of the test cooling tower is provided by the condensing end of the water chilling unit, the cooling circulating water exchanges heat with the condensing end of the water chilling unit, the normal-temperature cooling water is heated to become hot water cooling water, the hot water cooling water enters the test cooling tower for cooling, the cooling water enters the condensing end of the water chilling unit again for heat exchange, and thus the circulation is performed, according to the target test temperature and the target flow of the hot water required by the test of the cooling tower, the flow in the test loop of the cooling tower is firstly regulated and stabilized, and then the running power of the water chilling unit is regulated, so that the cooling circulating water is input into the cooling tower for testing under the working condition of constant flow and fixed temperature. And the cold energy generated by the water chilling unit at the heat exchange evaporation end exchanges heat with the chilled water heated and reflowed by the plate heat exchanger at the heat exchange evaporation end, the chilled water is cooled to low-temperature chilled water, and the low-temperature chilled water is conveyed to the plate heat exchanger for heat exchange and cooling of a part of chilled backwater in a machine room cooling system at the other side of the plate heat exchanger, so that the cold energy is conveyed to a data center machine room, and the circulation is performed.
In the utility model, the cooling tower test loop needs to meet various record tests on the cooling performance parameter values of the cooling tower, and specifically, the cooling tower test loop comprises a cooling water supply temperature sensing probe 28, a cooling water return temperature sensing probe 29, a cooling water pump 30 and a cooling tower 31 needing to be tested, wherein the water outlet of the cooling water pump is communicated with the water inlet of the condensation heat exchange end of the water chilling unit through a pipeline, the water inlet of the cooling water pump is communicated with the water outlet of the cooling tower through a pipeline, the cooling water supply temperature sensing probe is positioned in the pipeline communicated with the cooling tower and the cooling water pump, the water inlet of the cooling tower is communicated with the water outlet of the condensation heat exchange end of the water chilling unit through a pipeline, and the controller controls the cooling water pump to work at a set frequency.
When the cooling tower is tested, the controller calculates the running frequency of the cooling water pump through the circulating water flow of the cooling tower in the cooling water test working condition parameters, adjusts the working frequency of the cooling water pump to run on the set frequency to control the cooling water flow, ensures that the circulating water flow of the cooling circulating water of the test cooling tower is in a fixed value, and intelligently adjusts the running power of the water chilling unit to ensure that the heat generated by the water chilling unit is in a stable area, ensures that the outlet water temperature of the cooling circulating water exchanging heat from the water chilling unit is in a target test temperature value, and after multiple times of circulating running adjustment, the water chilling unit outputs the cooling circulating water with constant flow and fixed temperature, and then takes the specific performance index of the cooling tower, and the process generally lasts about 60 minutes. When one test condition is over, another hot water condition with different temperature or flow rate can be continued, and the water chiller is regulated again. And obtaining heat released by the condensing end of the water chilling unit and cold released by the evaporating end of the water chilling unit by calculating water inlet and outlet temperature difference and cooling circulating water quantity in the performance index of the cooling tower.
In the testing process, chilled water generated by the water chilling unit enters the plate heat exchanger to exchange heat with chilled backwater of the machine room, and finally, the chilled water is released to the data center machine room through the machine room air conditioner 24. In order to ensure that the chilled water connected into the machine room cooling loop has stable temperature, the controller can adjust the running frequency of the chilled water pump according to the first set temperature, so that the outlet water temperature of the water chilling unit is controlled in a first set temperature value, and adjust the running frequency of the cooling pump according to the second set temperature, so that the outlet water temperature of the plate heat exchanger is controlled in the second set temperature value. When the process is operated, the front end electric valve of the cold discharge pump is opened, the cold discharge pump is started, frozen backwater is pumped from the backwater pipe in the machine room cold supply loop to the plate heat exchanger for heat exchange, for example, the system sets the water outlet temperature of the plate heat exchanger to 8 ℃, and the water outlet temperature automatically controls the running water quantity of the cold discharge pump through the system. Chilled water of the water chilling unit is cooled by the plate heat exchanger to cool the air conditioner of the machine room. And the other side of the plate is replaced, the chilled water outlet temperature of the water chilling unit is set to be 7 ℃, and the running water quantity of the chilled water pump is automatically controlled by the system at the temperature. When the testing process is stopped, the front-end electric valve of the cooling pump is closed, and the whole testing system is isolated from the machine room cooling system.
In the whole process, the temperature and flow of chilled water of a chiller unit can show certain fluctuation, and stable cooling is required for operation of a machine room, so that the impact of fluctuation of chilled water on cooling of the machine room in the testing process of a cooling tower is avoided, the temperature of chilled water at 7 ℃ and the temperature of plate-change water at 8 ℃ are ensured, and a cooling tower is connected in parallel with a plate-type heat exchanger at the chilled water end, so that fluctuation of the cooling process is eliminated. Fig. 2 is a schematic diagram of a system for testing heat supply and cooling of a machine room in a cooling tower according to the second embodiment of the present utility model; preferably, the system further comprises a cooling tower 25, a butterfly valve 26 and a second check valve 27, wherein the flow stopping end of the second check valve is communicated with the water inlet end of the chilled water pump through a pipeline, the flow guiding end of the second check valve is communicated with the water outlet of the cooling tower through a pipeline, the water inlet of the cooling tower is communicated with one end of the butterfly valve through a pipeline, the other end of the butterfly valve is communicated with the water outlet of the evaporation heat exchange end of the water chilling unit through a pipeline, and the controller further controls the rotating speed of the fan of the cooling tower to enable the continuous temperature of the water outlet temperature of the evaporation heat exchange end of the water chilling unit to be at a first set temperature.
At the set temperature, the air inlet quantity of the cooling tower is regulated by controlling the rotating speed of the fan of the cooling tower, so that the heat exchange quantity of the chilled water and the air is automatically regulated, and the chilled backwater temperature of the chiller is further controlled, and the stable cooling of the machine room is realized.
Compared with the prior art, the utility model has the beneficial effects that:
the heat generated by the cold water machine for cooling by the data center is used for providing constant-flow constant-temperature cooling circulating water for the test cooling tower, so that the energy and the occupied area required by the test of the cooling tower are saved; the controller controls the running power of the water chiller and the running frequency of the chilled water pump to realize that the temperature values of the evaporating end and the condensing end of the water chiller respectively reach set values, so that the cooling circulating water with constant flow and constant temperature is provided for the test cooling tower, and meanwhile, the cooling capacity is provided for the machine room, and the power consumption of an external cooling source is reduced; the controller controls the cooling pump to achieve the consistency of the cooling temperature of the machine room and the temperature of the external cold source, and the temperature property of the cooling temperature of the machine room is maintained.
The cooling tower test is arranged near the data center, so that the cold water meter group is utilized for providing test hot water for the test cooling tower in an original way, and the refrigerating capacity generated by the cold water meter group is effectively recovered to cool a data center machine room, thereby achieving the purpose of energy conservation. The utility model uses a conventional cooling tower as a cooling tower, and the chilled water is generally lower than the temperature of the ambient air, so that part of impact cold energy can be absorbed from the air and released. The utility model does not adopt a conventional boiler heating method, adopts clean energy electric energy in the whole process, avoids smoke dust pollution in the use process of the boiler, and reduces carbon emission.
The following describes a control method of the system in combination with the above system, where the control method of the system includes:
step 100: acquiring a temperature set value T1 and a flow set value L1 of cooling circulating water for cooling tower testing, acquiring a temperature set value T2 of chilled water at an evaporation heat exchange end of a water chilling unit, and acquiring a temperature set value T3 of chilled water supply in a machine room cooling loop;
the parameters of hot water of the cooling tower to be tested are input, the parameters of the hot water of the cooling water comprise a temperature set value T1 and a flow set value L1, meanwhile, in order to ensure the stability of the cooling machine set on the cooling end of the machine room, the current chilled water supply temperature T3 in the cooling loop of the machine room needs to be obtained, and in order to conveniently control the running frequency of the cooling pump, the chilled water outlet temperature of the evaporation heat exchange end of the cooling machine set is also set, and the temperature set value T2 is also input. The controller intelligently adjusts the running frequencies of the cooling pump and the chilled water pump according to the running power of the water chilling unit, which is input by the controller, of the set value
Step 200: adjusting the operation frequency H1 of the cooling water pump to enable the flow value of cooling circulating water to be L1, adjusting the operation power W of the water chilling unit and adjusting the operation frequency H2 of the freezing water pump to enable the temperature value of the cooling circulating water to be T1 and the temperature value of the freezing water at the evaporation heat exchange end of the water chilling unit to be T2;
after the flow set value L1 of cooling circulating water is obtained, the operating frequency H1 of the cooling water pump is calculated according to the linear relation value of the flow of the cooling water pump and the operating frequency, a control signal of the operating frequency is output, the cooling water pump operates under the frequency H1, at this moment, in a cooling tower test loop, the cooling water circulating flow is L1, the water inlet temperature of the cooling water of the cooling tower test loop is monitored, the operating power W of the cooling water unit is adjusted, the water inlet temperature of the cooling water is lower, the operating power W of the cooling water unit is increased, the cooling water unit releases larger heat, at this moment, the cooling water temperature rises, when the cooling water temperature rises to T1, the cooling water unit is kept under the operating power W, a certain amount of cold energy is released at a heat exchange evaporation end when the cooling water unit operates under the power, the heat exchange evaporation end releases a certain amount of cold energy, the heat released by the cooling water inlet temperature difference and the circulating flow of the cooling water unit can be calculated, the water outlet temperature of the heat exchange evaporation end is measured in real time, when the water outlet temperature is lower than T1 ', the operating frequency H2 of the cooling water pump is increased, and the water outlet temperature gradually increases until the water outlet temperature reaches T1'.
In order to stabilize the chilled water outlet temperature to T2 even faster, the step S200 preferably further includes: and (3) regulating the rotating speed S of a fan of the cooling tower to enable the temperature value of chilled water at the evaporation heat exchange end of the water chilling unit to be T2.
And opening the cooling tower, enabling the chilled water with the temperature lower than T2 to enter the cooling tower, carrying out heat exchange with external natural wind, heating the chilled water, and when the fan rotating speed S of the cooling tower is higher, the air quantity is higher, the heat exchange heat is higher, and at the moment, the cooling capacity of the chilled water is higher, so that the chilled water is more rapidly at the temperature of T2.
Step 300: and detecting whether the water chilling unit is started or not, controlling the switch of the electric valve according to a start signal of the water chilling unit, and adjusting the running frequency H3 of the cooling pump when the electric valve is in a start state, so that the temperature value of chilled water at the hot end water outlet of the plate heat exchanger is T3.
When the chiller is in an on state, an electric valve of the system is also opened, part of chilled water pumped by a cold pump at the cold side of a machine room enters the plate heat exchanger, after the temperature T3 of the chilled water supply is obtained, the chilled water outlet temperature of the plate heat exchanger is detected in real time, when the chilled water outlet temperature is greater than T3, the operating frequency of the cold pump is reduced until the chilled water outlet temperature reaches T3, when the chilled water outlet temperature is less than T3, the operating frequency of the cold pump is increased until the chilled water outlet temperature reaches T3.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (3)
1. A system for testing heat supply and cooling of a machine room by a cooling tower, wherein the hot end of the system heats cooling circulating water in a cooling tower test loop, the cold end of the system cools part of the cooling circulating water in the cooling loop of the machine room,
the system comprises a water chilling unit, a chilled water outlet temperature sensing probe, a chilled water return temperature sensing probe, a chilled water pump, a plate heat exchanger, a plate water change temperature sensing probe, a check valve, an electric valve, a cold discharge pump, a first pipeline, a second pipeline, a third pipeline and a controller, wherein a water inlet of an evaporation heat exchange end of the water chilling unit is communicated with a water outlet end of the chilled water pump through the first pipeline, a water inlet end of the chilled water pump is communicated with a cold end water outlet of the plate heat exchanger through a pipeline, a cold end water inlet of the plate heat exchanger is communicated with a water outlet of an evaporation heat exchange end of the water chilling unit through the second pipeline, the chilled water return temperature sensing probe is positioned in the first pipeline, the chilled water outlet temperature sensing probe is positioned in the second pipeline, cooling circulating water cooled in a cooling tower test loop enters the condensation heat exchange end of the water chilling unit for heat exchange circulation, a hot end water outlet of the plate heat exchanger is communicated with a water guide end of the check valve through the third pipeline, a cold end of the plate heat exchange end of the plate heat exchanger is communicated with a water inlet of the electric motor through the electric valve, and one end of the electric heat exchange loop through the water return pump through the water inlet of the electric valve.
2. The system of claim 1, wherein the system further comprises a controller configured to control the controller,
the system further comprises a cooling tower, a butterfly valve and a second check valve, wherein the flow stopping end of the second check valve is communicated with the water inlet end of the chilled water pump through a pipeline, the flow guiding end of the second check valve is communicated with the water outlet of the cooling tower through a pipeline, the water inlet of the cooling tower is communicated with one end of the butterfly valve through a pipeline, and the other end of the butterfly valve is communicated with the water outlet of the evaporation heat exchange end of the chiller unit through a pipeline.
3. The system of claim 2, wherein the system further comprises a controller configured to control the controller,
the cooling tower test loop comprises a cooling water supply temperature sensing probe, a cooling water return temperature sensing probe, a cooling water pump and a cooling tower to be tested, wherein a water outlet of the cooling water pump is communicated with a water inlet of a condensation heat exchange end of the water chilling unit through a pipeline, a water inlet of the cooling water pump is communicated with a water outlet of the cooling tower through a pipeline, the cooling water supply temperature sensing probe is communicated with the cooling tower and the cooling water pump in the pipeline, a water inlet of the cooling tower is communicated with a water outlet of the condensation heat exchange end of the water chilling unit through a pipeline, and the cooling water return temperature sensing probe is communicated with the cooling tower and the cooling water chilling unit in the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321061454.0U CN220083362U (en) | 2023-05-06 | 2023-05-06 | System for be used for cooling tower test heat supply and computer lab to supply cold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321061454.0U CN220083362U (en) | 2023-05-06 | 2023-05-06 | System for be used for cooling tower test heat supply and computer lab to supply cold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220083362U true CN220083362U (en) | 2023-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321061454.0U Active CN220083362U (en) | 2023-05-06 | 2023-05-06 | System for be used for cooling tower test heat supply and computer lab to supply cold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220083362U (en) |
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2023
- 2023-05-06 CN CN202321061454.0U patent/CN220083362U/en active Active
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