CN216357906U - Secondary refrigerant negative pressure circulating device for data center - Google Patents
Secondary refrigerant negative pressure circulating device for data center Download PDFInfo
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- CN216357906U CN216357906U CN202122436314.4U CN202122436314U CN216357906U CN 216357906 U CN216357906 U CN 216357906U CN 202122436314 U CN202122436314 U CN 202122436314U CN 216357906 U CN216357906 U CN 216357906U
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Abstract
The utility model provides a secondary refrigerant negative pressure circulating device for a data center, and belongs to the technical field of refrigeration. The utility model provides a secondary refrigerant negative pressure circulating device for a data center, which comprises: the system comprises a closed-loop circulation circuit and a secondary refrigerant backflow and supply device, wherein the closed-loop circulation circuit comprises a surface cooler, a heat exchanger, a secondary refrigerant circulating pump and a connecting pipeline, and a pressure gauge is arranged on the connecting pipeline; two ends of the secondary refrigerant circulating pump are connected with a bridging pipeline in parallel, and a first valve is arranged on the bridging pipeline; the secondary refrigerant backflow and supply device is connected to the closed-loop circulation loop, and when the first valve is opened, secondary refrigerant is supplied to the closed-loop circulation loop or is collected. According to the secondary refrigerant negative pressure circulating device for the data center, the interior of the system runs in a negative pressure state, once leakage occurs, external air enters the interior of the system, secondary refrigerant is prevented from leaking to the outside, and the use safety is improved.
Description
Technical Field
The utility model belongs to the technical field of refrigeration, and particularly relates to a secondary refrigerant negative pressure circulating device for a data center.
Background
With the rapid development of communication and network technology, the scale and number of data centers are increasing, and a large amount of data processing equipment, networking equipment, telecommunication equipment and the like are centrally stored in the data centers, therefore, a large amount of heat can be generated in the working process, the temperature of the data center is increased, the temperature rise is not beneficial to the long-term work of the equipment, so that the refrigeration equipment is mostly used for environmental cooling, however, the refrigerating equipment has the risk of secondary refrigerant leakage in the using process, once leakage occurs, the secondary refrigerant leaks on equipment in the data center, and serious safety accidents are easily caused, so that the leakage place needs to be repaired and treated in time, and under the condition of micro leakage, because the leakage amount is small, the micro-leakage place is very difficult to find and detect, which may cause safety accidents, cause great economic loss and even casualties.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a negative pressure closed secondary refrigerant circulating device for a data center, and aims to solve the problem that a microleakage place is very difficult to find and detect.
In order to achieve the purpose, the utility model adopts the technical scheme that: provided is a coolant negative pressure circulating device for a data center, comprising:
the pressure sensor is connected in the closed loop in series and can monitor the pressure change inside the closed loop; a signal receiving end of the control module is connected with the pressure sensor, and a control end of the control module is connected with a controlled end of the closed loop;
the first valve is arranged in the bypass pipeline, and two ends of the bypass pipeline are respectively positioned at an inlet and an outlet of the secondary refrigerant circulating pump; the bypass pipeline has a blocking state when the first valve is closed and a conducting state when the first valve is opened;
and the secondary refrigerant backflow and supply device is connected in the closed-loop circulation circuit and is suitable for supplying or recovering and storing the secondary refrigerant in the closed-loop circulation circuit when the first valve is opened.
In one possible implementation, the coolant return and feed device includes a holding tank having an inlet and an outlet;
the outlet of the secondary refrigerant recovery pump is connected with the inlet of the placing box;
a third valve located on the inlet line of the coolant recovery pump;
and the second valve is positioned on the outlet pipeline of the placing box.
In one possible implementation manner, the coolant negative pressure circulating device is characterized by further comprising a pressure gauge connected in series in the closed loop.
In a possible implementation manner, the surface air cooler is provided with a plurality of surface air coolers which are connected in parallel.
In a possible implementation manner, the secondary refrigerant negative pressure circulating device further comprises an expansion water tank, an inner cavity of the expansion water tank is communicated with the closed loop circulating loop, and a liquid level display mark is arranged on the expansion water tank.
In one possible implementation manner, a floating ball is disposed in the expansion tank, the floating ball is located in an inner cavity of the expansion tank, and the floating ball floats in the expansion tank when the coolant in the closed-loop circulation circuit enters the expansion tank.
In one possible implementation, the coolant discharge end of the coolant recovery pump is provided with a first check valve.
In one possible implementation, the coolant discharge end of the coolant circulation pump is provided with a second check valve.
In a possible implementation, the heat exchanger is provided in plurality.
In a possible implementation manner, the heat exchanger is filled with a cooling liquid, an inlet end for injecting the cooling liquid and an outlet end for discharging the cooling liquid are arranged on the heat exchanger, and the inlet end is arranged below the outlet end.
The negative pressure closed secondary refrigerant circulating device for the data center has the advantages that:
compared with the prior art, the cold-carrying medium negative pressure circulating device is provided with a closed-loop circulating loop, cold-carrying medium circularly flows in the closed-loop circulating loop, the first valves are connected to two ends of a cold-carrying medium circulating pump in parallel, the cold-carrying medium can be conveniently led in and out, a cold-carrying medium backflow and supply device is arranged, the cold-carrying medium can be led in the closed-loop circulating loop and can also be collected in the closed-loop circulating loop, the inside of the cold-carrying medium negative pressure circulating device is in a closed state and can form a negative pressure state, the cold-carrying medium is led in the cold-carrying medium negative pressure circulating device in the negative pressure state, once micro leakage occurs, gas in the external environment can enter the inside of the cold-carrying medium negative pressure circulating device under the action of pressure difference, the cold-carrying medium leakage is prevented from occurring, equipment in the external environment is prevented from being damaged, and the use safety is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic perspective view of a negative pressure coolant circulation device for a data center according to an embodiment of the present invention.
In the figure: 1. a surface cooler; 2. a pressure gauge; 3. a pressure sensor; 4. an expansion tank; 5. a heat exchanger; 6. a first valve; 7. a first check valve; 8. a secondary refrigerant circulating pump; 9. a third valve; 10. a secondary refrigerant recovery pump; 11. placing a box; 12. a second valve; 13. a second one-way valve; 14. connecting a pipeline; 15. bridging the pipeline; 16. a return supply line; 17. and a communication pipeline.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1, a description will now be given of an embodiment of a negative pressure coolant circulation device for a data center according to the present invention, including:
the surface cooler 1, the heat exchanger 5 and the secondary refrigerant circulating pump 8 that form closed loop circulation circuit connect in series in proper order, its characterized in that, the inside negative pressure state that is of closed loop circulation circuit, negative pressure circulating device still includes:
the pressure sensor 3 is connected in series in the closed loop circulation circuit, and can monitor the pressure change in the closed loop circulation circuit; the signal receiving end of the control module is connected with the pressure sensor 3, and the control end is connected with the controlled end of the closed loop circulation circuit;
the system comprises a bridging pipeline 15 and a first valve 6, wherein the first valve 6 is arranged in the bridging pipeline 15, and two ends of the bridging pipeline 15 are respectively positioned at an inlet and an outlet of a secondary refrigerant circulating pump 8; the bypass line 15 has a blocking state when the first valve 6 is closed, and a conducting state when the first valve 6 is open;
and the secondary refrigerant backflow and supply device is connected in the closed-loop circulation circuit and is suitable for supplying or recovering and storing the secondary refrigerant in the closed-loop circulation circuit when the first valve 6 is opened.
The utility model provides a negative pressure closed secondary refrigerant circulating device for a data center, which is provided with a closed loop circulating loop, wherein secondary refrigerant circularly flows in the closed loop circulating loop, a first valve 6 is connected in parallel with two ends of a secondary refrigerant circulating pump 8 to facilitate the introduction and the discharge of the secondary refrigerant, a secondary refrigerant backflow and supply device is arranged to introduce the secondary refrigerant into the closed loop circulating loop and collect the secondary refrigerant in the closed loop circulating loop, the interior of the secondary refrigerant negative pressure circulating device is in a closed state and can form a negative pressure state, the secondary refrigerant is introduced into the secondary refrigerant negative pressure circulating device in the negative pressure state, once micro leakage occurs, gas in the external environment can enter the secondary refrigerant negative pressure circulating device under the action of pressure difference, the secondary refrigerant is prevented from leaking outside to cause equipment damage in the external environment, and the use safety is improved.
Specifically, referring to fig. 1, the closed-loop circulation circuit includes a surface air cooler 1, a heat exchanger 5, a coolant circulation pump 8, a pressure sensor 3, a control module, a bridging pipeline 15 and a first valve 6, a connecting pipeline 14 is disposed in the closed-loop circulation circuit, the surface air cooler 1, the heat exchanger 5 and the coolant circulation pump 8 are connected in series in the closed-loop circulation circuit through the connecting pipeline 14, the coolant circulation pump 8 provides power for coolant circulation, the pressure sensor 3 is disposed in the closed-loop circulation circuit, the pressure sensor 3 monitors pressure change in the coolant negative-pressure circulation device in real time, once the pressure in the coolant negative-pressure circulation device increases, early warning is performed in time, the pressure sensor 3 is connected with a signal receiving end of the control module, the pressure sensor 3 transmits a control signal to the control module, and the control module outputs a closing instruction to the coolant circulation pump 8, the secondary refrigerant circulating pump 8 is closed, the first valves 6 are connected in parallel at two ends of the secondary refrigerant circulating pump 8 through the bridging pipeline 15, when the secondary refrigerant circulating pump 8 is closed, the first valves 6 can be opened to communicate the heat exchanger 5 and the surface cooler 1, so that negative pressure pumping and secondary refrigerant introduction are facilitated, and when the secondary refrigerant circulating pump 8 is opened, the first valves 6 are closed to avoid secondary refrigerant backflow in the operation process; the secondary refrigerant backflow and supply device is connected with the connecting pipeline 14 or the bridging pipeline 15, and supplies secondary refrigerant to the closed loop circulation circuit when the first valve 6 is opened, or collects the secondary refrigerant when micro leakage occurs; and a negative pressure forming port is arranged, so that the negative pressure can be conveniently pumped out of the system.
Further, the secondary refrigerant negative pressure circulating device is a closable system, the secondary refrigerant negative pressure circulating device can be manufactured and kept in a negative pressure state, the secondary refrigerant is led into the secondary refrigerant negative pressure circulating device in the negative pressure state until the secondary refrigerant reaches the specified secondary refrigerant pre-filling standard, the secondary refrigerant negative pressure circulating device is started, and the secondary refrigerant circularly flows in the secondary refrigerant negative pressure circulating device to realize refrigeration. When the secondary refrigerant negative pressure circulating device leaks slightly, gas in the external environment enters the secondary refrigerant negative pressure circulating device, air pressure inside the secondary refrigerant negative pressure circulating device changes, the secondary refrigerant negative pressure circulating device is immediately closed at the moment, secondary refrigerant in the secondary refrigerant negative pressure circulating device is led out and collected, the secondary refrigerant negative pressure circulating device is overhauled, the place where the leakage occurs is timely repaired, equipment in the external environment is prevented from being damaged, and the use safety is improved.
Referring to fig. 1, a coolant return and supply apparatus for a data center according to an embodiment of the present invention includes a receiving box 11 having an inlet and an outlet;
the outlet of the secondary refrigerant recovery pump 10 is connected with the inlet of the placing box 11;
a third valve 9 positioned on an inlet pipeline of the secondary refrigerant recovery pump 10;
and a second valve 12 located on an outlet pipe of the placing tank 11.
Specifically, referring to fig. 1, the coolant return and supply device includes a tank 11, a second valve 12, a third valve 9, a coolant recovery pump 10, and a return supply line 16, wherein the return supply line 16 connects the tank 11, the second valve 12, the third valve 9, and the coolant recovery pump 10 in series; a communication line 17 is provided between the second valve 12 and the third valve 9, and connects the closed-loop circulation circuit; when the secondary refrigerant negative pressure circulating device pumps negative pressure, the second valve 12 and the third valve 9 are both opened, so that gas in the device can conveniently circulate, and a negative pressure environment is created; when the secondary refrigerant is introduced into the closed loop circulation circuit, the second valve 12 is opened to communicate the placing box 11 and the secondary refrigerant circulating pump 8, so that the secondary refrigerant is conveniently introduced, and the second valve 12 is closed after the secondary refrigerant is introduced; when the secondary refrigerant in the closed loop circulation loop flows back into the placing box 11, the second valve 12 is kept closed to prevent the secondary refrigerant from flowing back into the closed loop circulation loop, the third valve 9 and the secondary refrigerant recovery pump 10 are opened, and the secondary refrigerant flows into the placing box 11.
Referring to fig. 1, as a specific embodiment of the coolant negative pressure circulation device for a data center provided by the present invention, the coolant negative pressure circulation device further includes a pressure gauge 2 connected in series in the closed loop.
Specifically, referring to fig. 1, a pressure gauge 2 is arranged on the connecting pipeline 14, and the pressure gauge 2 is connected in series in the closed loop circulation circuit, so that the pressure value can be visually displayed.
Referring to fig. 1, a plurality of surface air coolers 1 are provided, and the plurality of surface air coolers 1 are connected in parallel.
Specifically, referring to fig. 1, a plurality of surface coolers 1 are arranged, so that the refrigerating area is increased, and the refrigerating efficiency is improved.
As a specific embodiment of the secondary refrigerant negative pressure circulating device for a data center provided by the utility model, referring to fig. 1, the secondary refrigerant negative pressure circulating device further includes an expansion water tank 4, an inner cavity of the expansion water tank 4 is communicated with the closed loop circulation circuit, and the expansion water tank 4 is provided with a liquid level display mark.
Specifically, referring to fig. 1, the expansion tank 4 is disposed on the closed-loop circulation loop, and the expansion tank 4 can display the liquid level in the device.
As a specific embodiment of the coolant negative pressure circulation device for a data center according to the present invention, referring to fig. 1, a floating ball is disposed in the expansion tank 4, and the floating ball is located in an inner cavity of the expansion tank 4, and floats in the expansion tank 4 when coolant in the closed-loop circulation loop enters the expansion tank 4.
Specifically, referring to fig. 1, a floating ball is disposed in the expansion tank 4, the liquid level in the coolant negative pressure circulation device can be directly observed by the floating ball, the floating ball floats upwards in the expansion tank 4 along with the injection of the coolant, the position of the floating ball is the liquid level of the coolant injected into the coolant negative pressure circulation device, and the floating ball floats upwards to a predetermined position to complete the injection of the coolant.
Referring to fig. 1, as one embodiment of the negative pressure coolant circulation device for a data center according to the present invention, a first check valve 7 is disposed at a coolant discharge end of a coolant recovery pump 10.
Specifically, referring to fig. 1, the first check valve 7 is disposed at the coolant discharge end of the coolant recovery pump 10 to prevent the coolant from flowing backward.
Referring to fig. 1, as an embodiment of the negative pressure coolant circulation device for a data center according to the present invention, a second check valve 13 is disposed at a coolant discharge end of the coolant circulation pump 8.
Specifically, referring to fig. 1, the second check valve 13 is disposed at the coolant discharge end of the coolant circulation pump 8 to prevent the coolant from flowing backward.
Referring to fig. 1, a heat exchanger 5 includes a plurality of heat exchangers 5, as an embodiment of the negative pressure coolant circulation device for a data center according to the present invention.
Specifically, referring to fig. 1, the heat exchangers 5 are provided with a plurality of groups to improve heat exchange efficiency.
Referring to fig. 1, a heat exchanger 5 is filled with a cooling liquid, the heat exchanger 5 is provided with an inlet end for injecting the cooling liquid and an outlet end for discharging the cooling liquid, and the inlet end is disposed below the outlet end.
Specifically, referring to fig. 1, the heat exchanger 5 is provided with an inlet end of the cooling fluid below an outlet end of the cooling fluid, so as to improve the heat exchange efficiency.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a secondary refrigerant negative pressure circulating device for data center, is including the surface cooler, the heat exchanger that form closed loop circulation circuit in proper order and establish ties to reach the secondary refrigerant circulating pump, its characterized in that, the inside negative pressure state that is of closed loop circulation circuit, negative pressure circulating device still includes:
the pressure sensor is connected in the closed loop in series and can monitor the pressure change inside the closed loop; a signal receiving end of the control module is connected with the pressure sensor, and a control end of the control module is connected with a controlled end of the closed loop;
the first valve is arranged in the bypass pipeline, and two ends of the bypass pipeline are respectively positioned at an inlet and an outlet of the secondary refrigerant circulating pump; the bypass pipeline has a blocking state when the first valve is closed and a conducting state when the first valve is opened;
and the secondary refrigerant backflow and supply device is connected in the closed-loop circulation circuit and is suitable for supplying or recovering and storing the secondary refrigerant in the closed-loop circulation circuit when the first valve is opened.
2. The negative pressure coolant circulation device for a data center as set forth in claim 1, wherein said coolant return-and-supply means includes a settling tank having an inlet and an outlet;
the outlet of the secondary refrigerant recovery pump is connected with the inlet of the placing box;
a third valve located on the inlet line of the coolant recovery pump;
and the second valve is positioned on the outlet pipeline of the placing box.
3. The negative coolant pressure cycling apparatus for a data center according to claim 1, further comprising a pressure gauge connected in series in the closed loop.
4. The negative pressure circulating apparatus of claim 1, wherein a plurality of surface coolers are provided, and a plurality of surface coolers are connected in parallel.
5. The negative pressure coolant circulation device for a data center as claimed in claim 1, further comprising an expansion tank, wherein an inner cavity of the expansion tank is communicated with the closed loop circulation circuit, and the expansion tank is provided with a liquid level display mark.
6. The negative pressure coolant circulation device of claim 5 wherein a float ball is provided in said expansion tank, said float ball being located in an inner cavity of said expansion tank, said float ball floating in said expansion tank when said coolant in said closed-loop circulation circuit enters said expansion tank.
7. The negative pressure coolant circulation device for a data center as set forth in claim 2, wherein said coolant discharge end of said coolant recovery pump is provided with a first check valve.
8. The negative pressure coolant circulation device for a data center as set forth in claim 1, wherein said coolant discharge end of said coolant circulation pump is provided with a second check valve.
9. The negative pressure coolant circulation device for a data center as set forth in claim 1, wherein said heat exchanger is provided in plurality.
10. The negative pressure coolant circulation device for a data center according to claim 9, wherein the heat exchanger is filled with a coolant, and wherein the heat exchanger is provided with an inlet end into which the coolant is injected and an outlet end from which the coolant is discharged, and wherein the inlet end is disposed below the outlet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122436314.4U CN216357906U (en) | 2021-10-09 | 2021-10-09 | Secondary refrigerant negative pressure circulating device for data center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122436314.4U CN216357906U (en) | 2021-10-09 | 2021-10-09 | Secondary refrigerant negative pressure circulating device for data center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216357906U true CN216357906U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122436314.4U Active CN216357906U (en) | 2021-10-09 | 2021-10-09 | Secondary refrigerant negative pressure circulating device for data center |
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| Country | Link |
|---|---|
| CN (1) | CN216357906U (en) |
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2021
- 2021-10-09 CN CN202122436314.4U patent/CN216357906U/en active Active
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