Buffering and pressure stabilizing device of liquid cooling system

Abstract

The utility model provides a buffer pressure stabilizing device of a liquid cooling system, which comprises a buffer container used for accommodating cooling liquid and gas in the liquid cooling system and connected with the liquid cooling system; the liquid level adjusting assembly comprises a liquid storage container, cooling liquid is stored in the liquid storage container, and the liquid storage container is connected with the buffer container through two pipelines and used for liquid flowing between the buffer container and the liquid storage container; the air pressure adjusting assembly comprises an air source device and an exhaust switch, the air source device is used for supplementing air into the buffer container, and the exhaust switch is used for releasing the air in the buffer container to the outside of the buffer container; and the buffer container is communicated with the outside through the pipeline and is kept closed. By adjusting the air pressure and the liquid level in the liquid storage container, the liquid volume and the pressure are maintained in set ideal intervals, and stable operation of the liquid cooling system can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of liquid cooling systems, in particular to a buffering and voltage stabilizing device for liquid cooling systems. Background Art

[0002] With the in-depth layout and development of the power industry, especially the rapid expansion of wind, solar and storage fields, power equipment, such as transformers / transformers, SVG / SVC, battery energy storage boxes, etc., have increasingly higher requirements on the stability and safety of the operating pressure of their liquid cooling systems. Utility Model Content

[0003] The utility model aims to provide a buffer pressure stabilizing device for a liquid cooling system, which is used to solve the technical problem that the existing liquid cooling system cannot maintain a stable operating pressure.

[0004] In order to achieve the above purpose, the utility model proposes the following technical solutions:

[0005] A buffering and voltage stabilizing device for a liquid cooling system, comprising:

[0006] A buffer container, used to contain coolant and gas in the liquid cooling system, wherein the buffer container is connected to a coolant flow channel of the liquid cooling system through a pipeline;

[0007] A liquid level adjustment assembly, comprising a liquid storage container, wherein the liquid storage container stores coolant, and the liquid storage container is connected to the buffer container via two pipelines, one of which is a pipeline for discharging liquid from the buffer container to the liquid storage container, and the other is a pipeline for replenishing liquid from the liquid storage container to the buffer container;

[0008] An air pressure adjustment assembly, comprising an air source device and an exhaust switch, wherein the air source device and the exhaust switch are both connected to the buffer container through a pipeline, the air source device is used to replenish gas into the buffer container, and the exhaust switch is used to release the gas in the buffer container to the outside of the buffer container;

[0009] The buffer container is kept airtight except being connected to the outside through the above-mentioned pipeline.

[0010] Furthermore, the liquid level adjustment component includes a liquid level sensor, and the liquid level sensor is arranged on the buffer container.

[0011] Furthermore, there are multiple liquid level sensors, which are distributed at different liquid level heights of the buffer container.

[0012] Furthermore, a solenoid valve is provided on the pipeline for discharging liquid from the buffer container to the liquid storage container.

[0013] Furthermore, a one-way valve and a pump are provided on the pipeline for the liquid storage container to replenish the liquid into the buffer container.

[0014] Furthermore, a pressure sensor is provided on the buffer container.

[0015] Furthermore, the exhaust switch is connected to a pipeline between the gas source device and the buffer container.

[0016] Furthermore, a one-way valve is connected to the pipeline between the gas source device and the buffer container.

[0017] Furthermore, the gas source device is any one or a combination of a high-pressure gas cylinder and an air pump.

[0018] Beneficial effects:

[0019] It can be seen from the above technical scheme that the technical scheme of the utility model provides a buffering and pressure-stabilizing device for a liquid cooling system. Since the liquid cooling system needs to be maintained stable, it is related to the liquid capacity in the liquid storage container and the pressure in the liquid storage container. Therefore, the gas pressure and liquid level in the liquid storage container are adjusted by the device of the present application, including increasing and decreasing the liquid level, increasing and decreasing the pressure, so as to maintain the liquid capacity in the liquid storage container and the pressure in the liquid storage container within the set ideal range, thereby ensuring the pressure stability of the liquid cooling system.

[0020] Through the structure of the present application, the adjustment efficiency is high and the effect is good, and the structure is easy to build and can be deployed quickly.

[0021] It should be appreciated that all combinations of the foregoing concepts, as well as additional concepts described in greater detail below, may be considered part of the inventive subject matter of the present disclosure, provided such concepts are not mutually inconsistent.

[0022] The foregoing and other aspects, embodiments and features of the present invention can be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as the features and / or beneficial effects of the exemplary embodiments, will be apparent from the following description or learned from the practice of the specific embodiments according to the teachings of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are not intended to be drawn to scale. In the accompanying drawings, each identical or nearly identical component shown in various figures may be represented by the same reference numeral. For the sake of clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the utility model will be described by way of example and with reference to the accompanying drawings, in which:

[0024] Figure 1 Schematic diagram of the structure of the buffer voltage stabilizing device in the embodiment of the present application;

[0025] Figure 2 Schematic diagram of a control method of a buffer voltage stabilizing device in an embodiment of the present application.

[0026] In the figure, the meanings of the reference numerals are as follows:

[0027] Buffer tank 1, first sensor 2, second sensor 3, third sensor 4, first one-way valve 5, liquid replenishing pump group 6, liquid replenishing tank 7, liquid discharge solenoid valve 8, air source device 9, second one-way valve 10, exhaust solenoid valve 11, pressure sensor 12. DETAILED DESCRIPTION

[0028] In order to better understand the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

[0029] Various aspects of the utility model are described in the present disclosure with reference to the accompanying drawings, in which many illustrative embodiments are shown. The embodiments of the present disclosure are not necessarily intended to include all aspects of the utility model. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed by the utility model are not limited to any implementation. In addition, some aspects disclosed by the utility model can be used alone, or in any appropriate combination with other aspects disclosed by the utility model.

[0030] like Figure 1 As shown, an embodiment of the utility model provides a buffer pressure stabilizing device for a liquid cooling system, which is used to ensure that a liquid cooling circulation pipeline in the liquid cooling system can always operate at an ideal pressure.

[0031] Figure 1 A buffer pressure stabilizing device for a liquid cooling system shown in FIG. 1 includes:

[0032] Buffer container, i.e. Figure 1 The buffer tank 1 is a sealable container. When the pipeline connecting the buffer tank 1 to the outside is not opened, the buffer tank 1 is used to contain the coolant and gas in the liquid cooling system. The buffer container is connected to the coolant flow channel of the liquid cooling system through a pipeline. The buffer container remains sealed except for being connected to the outside through the above pipeline.

[0033] Since the buffer container is connected to the coolant flow channel of the liquid cooling system, when the coolant capacity and / or pressure in the coolant flow channel of the liquid cooling system changes, the capacity and pressure of the buffer container will be affected, and vice versa. Therefore, the embodiment of the present application needs to maintain the liquid capacity and pressure in the buffer container in a stable state, so that the liquid cooling system can be maintained in a stable operating state.

[0034] In order to keep the liquid capacity and pressure in a stable state, this embodiment provides the following liquid level adjustment component and air pressure adjustment component to achieve liquid level adjustment and pressure adjustment.

[0035] Wherein, the liquid level adjustment component includes a liquid storage container, namely Figure 1 The refilling tank 7 stores coolant in the refilling tank 7, and the refilling tank 7 is connected to the buffer container through two pipelines, one of which is used to discharge liquid from the buffer container to the liquid storage container, and the other is used to replenish liquid from the liquid storage container to the buffer container.

[0036] When the liquid in the buffer tank 1 is less than the set normal range, the liquid in the liquid replenishing tank 7 is added to the buffer tank 1. Conversely, when the liquid in the buffer tank 1 is more than the set normal range, the liquid in the buffer tank 1 is introduced into the liquid replenishing tank 7.

[0037] The air pressure adjustment component includes an air source device 9 and an exhaust switch. The air source device 9 and the exhaust switch are both connected to the buffer container through a pipeline. The air source device 9 is used to replenish gas into the buffer container. The exhaust switch, i.e., the exhaust solenoid valve 11 in the figure, is used to release the gas in the buffer container to the outside of the buffer container.

[0038] When the pressure in the buffer tank 1 is too high, the pressure can be reduced by discharging the gas in the buffer tank 1. When the pressure in the buffer tank 1 is too low, the pressure can be increased by filling the buffer tank 1 with gas. In addition to changing the gas content in the buffer tank 1, the pressure can also be adjusted by adjusting the liquid content in the buffer tank 1, such as reducing the pressure in the buffer tank 1 by reducing the liquid content in the buffer tank 1, and conversely, increasing the liquid content in the buffer tank 1 to increase the pressure in the buffer tank 1. The above-mentioned methods of adjusting the gas and liquid content can be used alone or in combination to achieve the adjustment of the pressure in the buffer tank 1.

[0039] In order to detect the content of the liquid in the buffer container, in this embodiment, the liquid level adjustment assembly includes a liquid level sensor, and the liquid level sensor is arranged on the buffer container.

[0040] like Figure 1 As shown, in an embodiment of the present utility model, there are three liquid level sensors, which are distributed at different liquid level heights of the buffer container. Figure 1 In the figure, the sensor located at the top is the first sensor 2, the sensor located in the middle is the second sensor 3, and the sensor located at the bottom is the third sensor 4.

[0041] The first sensor 2, the second sensor 3, and the third sensor 4 represent the higher level, the lower level, and the ultra-low level of the liquid level, respectively. By detecting the actual liquid level height in the buffer container through the above three sensors, the liquid content in the sensor can be judged. Specifically, when the first sensor 2, the second sensor, and the third sensor 4 all detect liquid, it is judged that the actual liquid level in the buffer container is higher than the position of the first sensor 2, and it is judged that the liquid level is at a high level at this time. When the first sensor 2 cannot detect liquid, and the second sensor 3 and the third sensor 4 detect liquid, it is judged that the actual liquid level in the buffer container is between the first sensor 2 and the second sensor 3, and it is judged that the liquid level is normal at this time. When the first sensor 2 and the second sensor 3 cannot detect liquid, and the third sensor 4 detects liquid, it is judged that the actual liquid level in the buffer container is between the second sensor 3 and the third sensor 4, and it is judged that the liquid level is at a low level at this time. When the first sensor 2, the second sensor 3, and the third sensor 4 cannot detect liquid, it is judged that the actual liquid level in the buffer container is lower than the position of the third sensor 4, and it is judged that the liquid level is ultra-low at this time. Generally, there is an abnormality such as serious water shortage or leakage, and the system needs to be tripped for inspection or maintenance.

[0042] like Figure 1 As shown, a solenoid valve is provided on the pipeline for discharging liquid from the buffer container to the liquid storage container, that is, Figure 1 The liquid discharge solenoid valve 8 in the buffer container is provided with a one-way valve and a pump on the pipeline from the liquid storage container to the buffer container. Figure 1 In the infusion pump group 6, the one-way valve is the first one-way valve 5 in the figure. When it is necessary to discharge liquid from the buffer container to the liquid storage container, the solenoid valve is opened. When it is necessary to replenish liquid from the liquid storage container to the buffer container, the first one-way valve 5 and the infusion pump group 6 are opened. If there is no such requirement, the discharge solenoid valve 8, the first one-way valve 5 and the infusion pump group 6 are in a closed state.

[0043] To monitor the pressure in the buffer vessel, Figure 1 As shown, a pressure sensor 12 is provided on the buffer container.

[0044] Figure 1 The exhaust solenoid valve 11 is the exhaust switch, which is connected to the pipeline between the gas source device 9 and the buffer container. When the buffer container needs to release gas to the outside, the exhaust solenoid valve 11 is opened. When the buffer container does not need to release gas to the outside, the exhaust solenoid valve 11 is closed.

[0045] Furthermore, a one-way valve is connected to the pipeline between the gas source device 9 and the buffer container, that is, Figure 1The second one-way valve 10 shown in the figure is located between the gas source device 9 and the exhaust solenoid valve 11. The second one-way valve 10 can prevent the gas from flowing to the gas source device 9 during exhaust.

[0046] The gas source device 9 is any one or a combination of a high-pressure gas cylinder and an air pump.

[0047] The buffer pressure stabilizing device in the above embodiment can determine the liquid state in the buffer container by combining the liquid level height with the pressure monitored by the pressure sensor 12, and then automatically select the action of draining / replenishing air or liquid to achieve the purpose of stabilizing the liquid level and pressure in the buffer.

[0048] The embodiment of the utility model continuously adjusts the state in the buffer container through the detection data of the above-mentioned multiple liquid level sensors and pressure sensors 12, and finally maintains the buffer container in a state of normal liquid level and normal pressure, thereby keeping the liquid cooling system in a normal working state.

[0049] This embodiment provides operating the buffer voltage stabilizing device in the following manner to maintain stable operation of the liquid cooling system.

[0050] like Figure 2 As shown, the whole is divided into 2 major steps:

[0051] The first step is to detect the liquid level and adjust the gas and liquid content to a normal liquid level;

[0052] The second step is to adjust the gas content to a normal liquid level and pressure state when the liquid level is normal.

[0053] Specifically, Figure 2 As shown, it is divided into the following situations:

[0054] Case a: When the liquid level is normal and the pressure is normal, no adjustment action is required.

[0055] Case b: When the liquid level is normal and the pressure is low, the adjustment can be completed by replenishing the pressure to a normal state through air replenishment.

[0056] Case c: When the liquid level is normal and the pressure is high, the adjustment action can be completed by exhausting the pressure to a normal state.

[0057] Case d: When the liquid level is low and the pressure is low, the pressure and liquid level are increased through the liquid replenishment action. If the pressure reaches the high pressure value first, the liquid level is still at a low level at this time. The exhaust action can be used to readjust the liquid level and pressure to the low state. This cycle is repeated until the liquid level is adjusted to a normal state. Then, according to the plan of case a / b / c, corresponding actions can be taken to adjust the liquid level and pressure to a normal state.

[0058] Case e: When the liquid level is low and the pressure is high or normal, the exhaust action can be used to adjust the liquid level to a low pressure state, and then the corresponding action can be performed according to the plan of case d to adjust the liquid level to a normal pressure state.

[0059] Case f: When the liquid level is high and the pressure is high or normal, the pressure and liquid level are reduced by draining the liquid. If the pressure reaches the low value first, the liquid level is still high at this time. The air replenishment action can be used to readjust the liquid level and pressure to the high state. This cycle is repeated until the liquid level is adjusted to the normal state. Then, according to the plan of case a / b / c, corresponding actions can be taken to adjust the liquid level and pressure to the normal state.

[0060] In case g, when the liquid level is high and the pressure is low, the air supply action can be used to adjust the liquid level to a high pressure state, and then the corresponding action can be performed according to the plan of case f to adjust the liquid level to a normal pressure state.

[0061] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A buffer voltage stabilizing device for a liquid cooling system, characterized in that: include: A buffer container, used to contain coolant and gas in the liquid cooling system, wherein the buffer container is connected to a coolant flow channel of the liquid cooling system through a pipeline; A liquid level adjustment assembly, comprising a liquid storage container, wherein the liquid storage container stores coolant, and the liquid storage container is connected to the buffer container via two pipelines, one of which is a pipeline for discharging liquid from the buffer container to the liquid storage container, and the other is a pipeline for replenishing liquid from the liquid storage container to the buffer container; An air pressure adjustment assembly, comprising an air source device and an exhaust switch, wherein the air source device and the exhaust switch are both connected to the buffer container through a pipeline, the air source device is used to replenish gas into the buffer container, and the exhaust switch is used to release the gas in the buffer container to the outside of the buffer container; The buffer container remains airtight except being connected to the outside through the above-mentioned pipeline.

2. The buffer voltage stabilizing device according to claim 1, characterized in that: The liquid level adjustment assembly comprises a liquid level sensor, and the liquid level sensor is arranged on the buffer container.

3. The buffer voltage stabilizing device according to claim 2, characterized in that: There are multiple liquid level sensors, which are distributed at different liquid level heights of the buffer container.

4. The buffer voltage stabilizing device according to claim 1, characterized in that: A solenoid valve is provided on the pipeline for discharging liquid from the buffer container to the liquid storage container.

5. The buffer voltage stabilizing device according to claim 1, characterized in that: A one-way valve and a pump are arranged on the pipeline for the liquid storage container to replenish the liquid into the buffer container.

6. The buffer voltage stabilizing device according to claim 1, characterized in that: The buffer container is provided with a pressure sensor.

7. The buffer voltage stabilizing device according to claim 6, characterized in that: The exhaust switch is connected to the pipeline between the gas source device and the buffer container.

8. The buffer voltage stabilizing device according to claim 7, characterized in that: A one-way valve is also connected to the pipeline between the gas source device and the buffer container.

9. The buffer voltage stabilizing device according to claim 6, characterized in that: The gas source device is any one or a combination of a high-pressure gas cylinder and an air pump.

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