Circulating filtering device of water cooling system

Abstract

A circulating filtering device of a water cooling system is used for cooling equipment to be cooled and comprises an inlet valve block, a heater, a centrifugal pump, an electric three-way valve, a filter and an outlet valve block which are sequentially connected through pipelines, and the equipment to be cooled is connected with the inlet valve block and the outlet valve block through pipelines. Wherein cooling liquid flows through the inlet valve block, the centrifugal pump provides power for the cooling liquid to flow in a pipeline, residues in the cooling liquid are filtered through the filter after the cooling liquid passes through the electric three-way valve, and then the cooling liquid enters the outlet valve block and finally flows to equipment to be cooled to cool the equipment to be cooled. According to the utility model, integrated assembly can be carried out, and independent circulating filtration can be efficiently carried out on water cooling systems of electrical equipment such as a wind power gear box, a converter and the like; and meanwhile, heat exchange equipment can be externally connected to cool the cooling liquid, so that the device has the characteristics of convenience and high efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of water-cooled circulation of electrical equipment, and particularly relates to a circulating filtration device for a water-cooling system. Background Technique

[0002] In recent years, the new energy wind power generation industry has developed and matured rapidly. As the main components of the electrical system supporting wind turbines, heat exchangers and converters have received extensive attention and emphasis.

[0003] Among them, the residues existing in the heat exchanger core and pipeline itself, as well as the newly added impurities during the working process, are likely to block the pipeline after accumulation, resulting in a decrease in the flow rate of the coolant and a weakening of the heat exchange capacity. Therefore, the filtration of impurities such as residues in the system coolant is extremely important; and as one of the main heat-generating devices of the wind turbine, it is also particularly important to cool the internal heat-generating components of the converter to maintain a safe working temperature. Therefore, designing a water-cooling system circulating filtration device to overcome the above defects is an urgent problem to be solved. Content of the Utility Model

[0004] Based on the above technical problems, the purpose of the utility model is to provide a circulating filtration device for a water-cooling system, which is used to cool the equipment to be cooled.

[0005] To achieve the above purpose, the utility model provides a circulating filtration device for a water-cooling system, which is used to cool the equipment to be cooled, including: an inlet valve block, a heater, a centrifugal pump, an electric three-way valve, a filter, and an outlet valve block that are connected in sequence through pipelines, and the equipment to be cooled is respectively connected to the inlet valve block and the outlet valve block through pipelines.

[0006] Among them, the coolant flows through the inlet valve block, the centrifugal pump provides the power for the coolant to flow in the pipeline, the residues are filtered by the filter after passing through the electric three-way valve, then enter the outlet valve block, and finally flow to the equipment to be cooled to cool it.

[0007] Preferably, the water-cooling system circulating filtration device further includes: a first temperature sensor disposed inside the pipeline of the inlet valve block to detect the temperature of the coolant in the inlet valve block; when the first temperature sensor detects that the temperature of the coolant is lower than the set threshold, the heater is turned on to heat the coolant; a heat exchange device respectively connected to the electric three-way valve and the filter; the electric three-way valve includes a first port, a second port, and a third port; its first port is connected to the outlet of the centrifugal pump, its second port is connected to the inlet of the filter, its third port is connected to the inlet of the heat exchange device, and the outlet of the heat exchange device is connected to the inlet of the filter; a second temperature sensor disposed inside the pipeline of the outlet valve block to detect the temperature of the coolant in the outlet valve block; when the second temperature sensor detects that the temperature of the coolant is higher than the set threshold, the first port and the third port of the electric three-way valve are switched to be connected, so that the coolant flows through the heat exchange device and then enters the filter, realizing the reduction of the temperature of the coolant.

[0008] Preferably, the water-cooling system circulating filtration device further includes a water injection valve connected to the inlet of the inlet valve block for injecting coolant into the inlet valve block.

[0009] Preferably, the water-cooling system circulating filtration device further includes an expansion tank connected to the inlet valve block; wherein, when the temperature of the coolant rises, the volume expands and the pressure increases, the coolant will enter the expansion tank for storage; on the contrary, when the temperature of the coolant drops and the pressure decreases, the expansion tank will supplement the coolant to maintain the pressure stability of the water-cooling system circulating filtration device and compensate for the volume change of the coolant due to temperature changes.

[0010] Preferably, a pressure gauge and an exhaust valve are provided on the expansion tank; when the pressure gauge detects that the pressure in the expansion tank exceeds the set threshold, the exhaust valve is opened to release the gas in the expansion tank to the atmosphere to reduce the pressure.

[0011] Preferably, the water-cooling system circulating filtration device further includes a first pressure sensor disposed inside the pipeline of the inlet valve block to detect the pressure in the inlet valve block; when the first pressure sensor detects that the pressure in the inlet valve block is greater than the set threshold, the blocked pipeline of the water-cooling system circulating filtration device needs to be repaired.

[0012] Preferably, the water-cooling system circulating and filtering device further comprises: a safety valve connected to the outlet valve block for relieving pressure on the outlet valve block; a water storage kettle connected to the safety valve for storing the coolant flowing out due to the pressure relief of the safety valve; a second pressure sensor disposed inside the pipeline of the outlet valve block for detecting the pressure in the outlet valve block; when the second pressure sensor detects that the pressure in the outlet valve block is greater than the set preset value, the safety valve is opened to relieve pressure on the outlet valve block.

[0013] Preferably, the filter is a Y-type filter.

[0014] Preferably, the water-cooling system circulating and filtering device further comprises an electric control cabinet, which is respectively connected to the centrifugal pump, the heater and the heat exchange device; and the electric control cabinet is respectively connected to the first temperature sensor, the second temperature sensor, the first pressure sensor and the second pressure sensor.

[0015] Preferably, the water-cooling system circulating and filtering device further comprises a bottom frame for supporting the whole water-cooling system circulating and filtering device.

[0016] In summary, compared with the prior art, a water-cooling system circulating and filtering device of the present utility model can be integrally assembled, and can independently circulate and filter the water-cooling systems of electrical equipment such as wind power gearboxes and converters with high efficiency; at the same time, a heat exchange device can be externally connected to cool the coolant, which has the characteristics of convenience and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the equipment of the present utility model;

[0018] Figure 2 is a schematic principle diagram of the present utility model;

[0019] In the figure:

[0020] 1, electric control cabinet; 2, water storage kettle; 3, safety valve; 4, outlet valve block; 5, temperature sensor; 6, filter; 7, bottom frame; 8, electric three-way valve; 9, centrifugal pump; 10, water injection valve; 11, inlet valve block; 12, pressure sensor; 13, heater; 14, exhaust valve; 15, pressure gauge; 16, expansion tank; 17, equipment to be cooled; 18, heat exchange device.

[0021] 51, first temperature sensor; 52, second temperature sensor; 121, first pressure sensor; 122, second pressure sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following combines the attached Figure 1 and the attached Figure 2, the present utility model will be further elaborated by describing a preferred specific embodiment in detail.

[0023] It should be noted that the attached drawings are in a very simplified form and all use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the embodiments of the present utility model, not for limiting the limiting conditions for the implementation of the present utility model. Therefore, they do not have any technical substance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the efficacy that the present utility model can produce and the purpose that can be achieved, should still fall within the scope covered by the technical content disclosed by the present utility model.

[0024] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0025] As Figure 1 and Figure 2 shown, the present utility model provides a water-cooling system circulating filtration device for cooling a device to be cooled 17, including an inlet valve block 11, a heater 13, a centrifugal pump 9, an electric three-way valve 8, a filter 6, and an outlet valve block 4 that are sequentially connected by pipelines; wherein, the device to be cooled 17 is respectively connected to the inlet valve block 11 and the outlet valve block 4 by pipelines, thereby forming a water-cooling circulating pipeline.

[0026] Among them, the coolant flows through the inlet valve block, the centrifugal pump provides the power for the coolant to flow in the pipeline, after passing through the electric three-way valve, the filter filters the residues in it, then enters the outlet valve block, and finally flows to the device to be cooled to cool it.

[0027] Further, the water-cooling system circulating filtration device further includes: a water injection valve 10, which is connected to the inlet of the inlet valve block 11 and is used to inject the coolant for cooling the device to be cooled 17 from the water injection valve 10 into the inlet valve block 11.

[0028] Further, a first pressure sensor 121 is arranged on the inner side of the pipeline of the inlet valve block 11 to detect the pressure in the inlet valve block 11 and judge whether there is a blockage in the internal pipeline of the water-cooling system circulating filtration device; when the pressure detected by the first pressure sensor 121 is greater than the set threshold, it indicates that there is a blockage in the internal pipeline of the water-cooling system circulating filtration device and maintenance is required.

[0029] Further, a first temperature sensor 51 is also provided inside the pipeline of the inlet valve block 11 to detect the temperature of the coolant in the inlet valve block; when the first temperature sensor detects that the temperature of the coolant is lower than the set threshold, the heater is turned on to heat the coolant.

[0030] Further, the heater 13 is provided at the outlet of the inlet valve block 11, and when the first temperature sensor 51 detects that the temperature of the coolant injected into the inlet valve block 11 by the water injection valve 10 is lower than the set threshold, the heater 13 can be turned on to heat the coolant in the inlet valve block 11 to ensure that its temperature can maintain its normal flow and prevent the coolant temperature from being too low, which may affect the normal operation of electrical equipment (too low coolant temperature may cause it to be unable to flow in the pipeline).

[0031] Further, the water-cooling system circulation filtration device further includes: an expansion tank 16, which is connected to the inlet valve block 11; and a pressure gauge 15 and an exhaust valve 14 are provided on the expansion tank 16. It should be noted that when the coolant temperature rises, its volume expands and the pressure increases, the coolant will enter the expansion tank 16 for storage; on the contrary, when the coolant temperature drops and the pressure decreases, the expansion tank 16 will supplement the coolant to maintain the pressure stability of the water-cooling system circulation filtration device and compensate for the volume change of the coolant due to temperature change; and when the pressure gauge 15 detects that the pressure in the expansion tank 16 is too high, the exhaust valve 14 can be opened to release the gas in the expansion tank 16 into the atmosphere to reduce the pressure.

[0032] Further, the centrifugal pump 9 is connected to the outlet of the heater 13, and the centrifugal pump 9 uses the centrifugal force generated when the impeller rotates to transport the coolant so that the coolant circulates in the pipeline of the water-cooling system circulation filtration device.

[0033] Further, the water-cooling system circulation filtration device further includes: a heat exchange device 18, which is respectively connected to the electric three-way valve 8 and the filter 6.

[0034] Further, the electric three-way valve 8 includes three ports. Its first port is connected to the outlet of the centrifugal pump 9, its second port is connected to the inlet of the filter 6, its third port is connected to the inlet of the heat exchange device 18, and the outlet of the heat exchange device 18 is also connected to the inlet of the filter 6.

[0035] It can be understood that the electric three-way valve 8 forms different connection paths with the filter 6 under different circumstances by switching the connection between the second and third ports and the first port.

[0036] Further, the filter 6 can filter the residues in the water cooling system and the impurities generated during daily operation, so that the water cooling system can maintain a reliable operating state. In the preferred embodiment of the present invention, the filter 6 can be a Y-type filter.

[0037] Further, the outlet of the outlet valve block 4 is connected to the outlet of the filter 6, and a second temperature sensor 52 is arranged on the inner side of the pipeline of the outlet valve block 4 to detect the temperature of the coolant in the outlet valve block 4.

[0038] Specifically, when the second temperature sensor 52 detects that the temperature of the coolant in the outlet valve block 4 is normal, the first port and the second port of the electric three-way valve 8 are connected. At this time, the coolant directly enters the outlet valve block 4 through the electric three-way valve 8 via the filter 6; when the second temperature sensor 52 detects that the temperature of the coolant in the outlet valve block 4 is higher than the set threshold, the first port of the electric three-way valve 8 is controlled to be connected to the third port, so that the coolant flows to the heat exchange device 18 for heat exchange. After the coolant is cooled, it enters the outlet valve block 4 via the filter 6; until the second temperature sensor 52 detects again that the temperature of the coolant in the outlet valve block 4 is lower than the set threshold, the first port of the electric three-way valve 8 is controlled to be connected to the second port again.

[0039] It can be understood that the temperature threshold set by the first temperature sensor 51 is less than the temperature threshold set by the second temperature sensor 52.

[0040] Further, a second pressure sensor 122 is also arranged on the inner side of the pipeline of the outlet valve block 4 to detect the pressure in the outlet valve block 4. At the same time, the outlet valve block 4 is also connected to a safety valve 3. When the second pressure sensor 122 detects that the pressure in the outlet valve block 4 exceeds the set threshold, the safety valve 3 is opened to relieve the pressure of the outlet valve block 4, so as to ensure that the pressure at the outlet valve block 4 is normal and avoid damage to electrical equipment caused by excessive pressure.

[0041] Further, the water cooling system circulation filtering device further includes a water storage kettle 2, which is connected to the safety valve 3. After the safety valve 3 relieves the pressure, the flowing coolant will flow to the water storage kettle 2, thus avoiding the coolant flowing to the outside and causing environmental pollution.

[0042] Further, the water cooling system circulation filtering device further includes an electric control cabinet 1, and the electric control cabinet 1 is respectively connected to the centrifugal pump 9, the heater 13 and the heat exchange device 18; the electric control cabinet 1 is respectively connected to the first temperature sensor 51, the second temperature sensor 52, the first pressure sensor 121 and the second pressure sensor 122.

[0043] Further, the water-cooling system circulating filtration device further includes a bottom frame 7 for supporting the overall device and maintaining the integral molding of the device.

[0044] The present utility model also provides a water-cooling circulation filtration method implemented by using the water-cooling system circulating filtration device, which includes the following steps:

[0045] S1. Inject coolant from the water injection valve 10 into the inlet valve block 11.

[0046] S2. The first pressure sensor 122 detects the pressure of the inlet valve block 11 and feeds it back to the electric control cabinet 1 to determine whether the water-cooling circulation device is blocked; the first temperature sensor 51 detects the temperature of the coolant and feeds it back to the electric control cabinet 1. When the temperature of the coolant is lower than the set threshold, the electric control cabinet 1 controls the heater 13 to turn on and heat the coolant to maintain the normal operation of the water-cooling system circulating filtration device.

[0047] S3. The coolant sequentially flows through the heater 13, the centrifugal pump 9, the electric three-way valve 8, the filter 6, and the outlet valve block 4 in the pipeline of the water-cooling system circulating filtration device.

[0048] The second temperature sensor 52 detects the temperature of the coolant in the outlet valve block 4 and feeds it back to the electric control cabinet 1; when the temperature of the coolant in the outlet valve block 4 is higher than the set threshold, the electric control cabinet 1 controls the first port of the electric three-way valve 8 to be connected to the third port, so that the coolant flows into the heat exchange device 18 for heat exchange. After the coolant is cooled, it enters the outlet valve block 4 via the filter 6 again; until the second temperature sensor 52 detects again that the temperature of the coolant in the outlet valve block 4 is lower than the set threshold and feeds it back to the electric control cabinet 1, and then the electric control cabinet 1 controls the first port of the electric three-way valve 8 to be connected to the second port again;

[0049] The second pressure sensor 122 detects the pressure in the outlet valve block 4 and feeds it back to the electric control cabinet 1. When the second pressure sensor 122 detects that the pressure in the outlet valve block 4 exceeds the set threshold, the electric control cabinet 1 controls the safety valve 3 to open to relieve the pressure of the outlet valve block 4 to ensure the normal pressure at the outlet valve block 4 and avoid damage to electrical equipment caused by excessive pressure.

[0050] S4. The coolant flows into the device to be cooled 17, cools the device to be cooled 17, and then circulates back into the inlet valve block 11; repeat steps S2 to S4 until the cooling of the device to be cooled 17 is completed.

[0051] In summary, the circulating filtration device for the water-cooling system of the present utility model can be integrally assembled, and can independently circulate and filter the water-cooling systems of electrical equipment such as wind power gearboxes and converters with high efficiency; at the same time, heat exchange equipment can be externally connected to cool the coolant of the system, which has the characteristics of convenience and high efficiency.

[0052] Although the content of the present utility model has been introduced in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present utility model. After those skilled in the art have read the above content, various modifications and substitutions of the present utility model will be obvious. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims

1. A water-cooling system circulation filtration device for cooling a device to be cooled, characterized in that, Including: An inlet valve block, a heater, a centrifugal pump, an electric three-way valve, a filter, and an outlet valve block are sequentially connected through pipelines, and the equipment to be cooled is respectively connected to the inlet valve block and the outlet valve block through pipelines; Among them, the coolant flows through the inlet valve block, the centrifugal pump provides the power for the coolant to flow in the pipeline, after passing through the electric three-way valve, the filter filters the residues in it, then enters the outlet valve block, and finally flows to the equipment to be cooled to cool it; The water-cooling system circulation filtration device further includes: A first temperature sensor is arranged on the inner side of the pipeline of the inlet valve block to detect the temperature of the coolant in the inlet valve block; when the first temperature sensor detects that the temperature of the coolant is lower than the set threshold, the heater is turned on to heat the coolant; A heat exchange device is respectively connected to the electric three-way valve and the filter; the electric three-way valve includes a first port, a second port, and a third port; its first port is connected to the outlet of the centrifugal pump, its second port is connected to the inlet of the filter, its third port is connected to the inlet of the heat exchange device, and the outlet of the heat exchange device is connected to the inlet of the filter; A second temperature sensor is arranged on the inner side of the pipeline of the outlet valve block to detect the temperature of the coolant in the outlet valve block; when the second temperature sensor detects that the temperature of the coolant is higher than the set threshold, the first port and the third port of the electric three-way valve are switched to be connected, so that the coolant flows through the heat exchange device and then enters the filter to reduce the temperature of the coolant.

2. The circulating filtration device of the water cooling system according to claim 1, wherein The water-cooling system circulation filtration device further includes a water injection valve, which is connected to the inlet of the inlet valve block for injecting coolant into the inlet valve block.

3. The water-cooling system circulation filtration device according to claim 1, characterized in that, The water-cooling system circulation filtration device further includes an expansion tank, which is connected to the inlet valve block; Among them, when the temperature of the coolant rises, the volume expands and the pressure increases, the coolant will enter the expansion tank for storage; on the contrary, when the temperature of the coolant drops and the pressure decreases, the expansion tank will supplement the coolant to maintain the pressure stability of the water-cooling system circulation filtration device and compensate for the volume change of the coolant due to temperature change.

4. The water-cooling system circulating filtration device according to claim 3, wherein, A pressure gauge and an exhaust valve are arranged on the expansion tank; When the pressure gauge detects that the pressure in the expansion tank exceeds the set threshold, the exhaust valve is opened to release the gas in the expansion tank to the atmosphere to reduce the pressure.

5. The circulating filtration device of the water cooling system according to claim 1, characterized in that, The water-cooling system circulation filtration device further includes a first pressure sensor, which is arranged on the inner side of the pipeline of the inlet valve block to detect the pressure in the inlet valve block; when the first pressure sensor detects that the pressure in the inlet valve block is greater than the set threshold, the blocked pipeline of the water-cooling system circulation filtration device needs to be repaired.

6. The circulating filtration device of the water cooling system according to claim 5, characterized in that, The water-cooling system circulation filtration device further includes: A safety valve is connected to the outlet valve block for relieving pressure on the outlet valve block; A water storage kettle is connected to the safety valve for storing the coolant flowing out of the safety valve when it relieves pressure. A second pressure sensor is arranged inside the pipeline of the outlet valve block to detect the pressure in the outlet valve block; when the second pressure sensor detects that the pressure in the outlet valve block is greater than the set prefabrication, the safety valve is opened to relieve the pressure of the outlet valve block.

7. The circulating filtration device of the water cooling system according to claim 1, characterized in that, The filter adopts a Y-type filter.

8. The circulating filtration device of the water cooling system according to claim 6, characterized in that, It further includes an electric control cabinet, which is respectively connected to the centrifugal pump, the heater and the heat exchange equipment; and the electric control cabinet is respectively connected to the first temperature sensor, the second temperature sensor, the first pressure sensor and the second pressure sensor.

9. The circulating filtration device of the water cooling system according to claim 1, characterized in that, The water-cooling system circulation filtering device further includes a bottom frame to support the whole water-cooling system circulation filtering device.

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