A water cooling system

Abstract

The present application relates to the field of high-voltage frequency converter cooling technology, and discloses a water cooling system.The water cooling system comprises a phase-shifting voltage transformation unit, a high-voltage frequency conversion unit, a detection unit, a cooling water outlet pipe and a cooling water inlet pipe.The phase-shifting voltage transformation unit comprises a first water outlet and a first water inlet.The high-voltage frequency conversion unit comprises a second water inlet and a second water outlet.The first water outlet is connected to the second water inlet.The first water inlet is connected to the cooling water inlet pipe, and the second water outlet is connected to the cooling water outlet pipe.The detection unit is connected to the phase-shifting voltage transformation unit and the high-voltage frequency conversion unit respectively.The water cooling system can further improve the circulation efficiency and the adjustability of the water cooling system.

Description

Technical Field

[0001] This invention relates to the field of high-voltage frequency converter cooling technology, and in particular, to a water cooling system. Background Technology

[0002] Fans and pumps, widely used in industries such as metallurgy, coal mining, chemical engineering, power generation, and municipal water supply, account for approximately 40% of the energy consumption of all electrical equipment. Fan and pump motors are typically selected with a certain margin of safety, and their output air volume and flow rate vary with operating conditions. Therefore, using high-voltage frequency converters to control the speed of fan and pump loads not only improves production processes and product quality but also meets the need for energy conservation, making it an important measure for energy saving and consumption reduction.

[0003] A typical high-voltage frequency converter consists of a phase-shifting transformer, power unit, control unit, and cabinet. The heat generated during operation reaches 3.5% to 4% of the equipment capacity. Frequency converters are highly sensitive to ambient temperature; if the heat cannot be dissipated in time, the operating temperature often becomes too high, causing overheating alarms and even shutdowns. Prolonged operation in high-temperature environments will adversely affect the electrical insulation and lifespan of the equipment. Summary of the Invention

[0004] This invention provides a water cooling system that can improve heat dissipation efficiency and further save energy.

[0005] Other features and advantages of the invention will become apparent from the following detailed description, or may be learned in part by practice of the invention.

[0006] According to one aspect of the present invention, a water cooling system is provided, the system comprising: a phase-shifting transformer unit, a high-voltage frequency converter unit, a detection unit, a cooling water outlet pipe, and a cooling water inlet pipe; the phase-shifting transformer unit includes a first water outlet and a first water inlet; the high-voltage frequency converter unit includes a second water inlet and a second water outlet; the first water outlet is connected to the second water inlet; the first water inlet is connected to the cooling water inlet pipe, and the second water outlet is connected to the cooling water outlet pipe; the detection unit is connected to both the phase-shifting transformer unit and the high-voltage frequency converter unit.

[0007] In one embodiment of the present invention, based on the aforementioned scheme, the detection unit includes a flow meter and a first pressure gauge; both the flow meter and the first pressure gauge are disposed between the first water inlet and the cooling water inlet pipe.

[0008] In one embodiment of the present invention, based on the foregoing scheme, the detection unit further includes a second pressure gauge, which is disposed between the first water outlet and the second water inlet.

[0009] In one embodiment of the present invention, based on the foregoing scheme, the phase-shifting transformer unit includes a phase-shifting transformer, a cooling fan, and a water-air heat exchanger; the water-air heat exchanger is connected to the phase-shifting transformer, the cooling fan, the first water outlet, and the first water inlet, respectively.

[0010] In one embodiment of the present invention, based on the foregoing scheme, the phase-shifting transformer unit further includes a phase-shifting transformer duct, which is located above the cooling fan and connected to the air-water heat exchanger.

[0011] In one embodiment of the present invention, based on the foregoing scheme, the high-voltage frequency converter includes a condenser and a power unit; the condenser is connected to the power unit, the second water inlet and the second water outlet respectively.

[0012] In one embodiment of the present invention, based on the foregoing scheme, the high-voltage frequency converter further includes a control unit, which is connected to the condenser and the power unit respectively.

[0013] In one embodiment of the present invention, based on the foregoing scheme, the high-voltage frequency converter further includes a cooling pipeline, which is connected to the condenser, the power unit, the second water inlet, and the second water outlet respectively.

[0014] In one embodiment of the present invention, based on the foregoing scheme, a first valve and a second valve are further included; the first valve and the second valve are disposed between the first outlet and the second inlet.

[0015] In one embodiment of the present invention, based on the foregoing scheme, a third valve and a fourth valve are further included; the third valve is disposed between the first water inlet and the cooling water inlet pipe; the fourth valve is disposed between the second water outlet and the cooling water outlet pipe.

[0016] In the technical solution of this invention embodiment, the heat generated by the high-voltage frequency converter can be dissipated through the first water outlet and the second water inlet, and simultaneously cooled through the first water inlet and the cooling water inlet pipe. The generated high-heat water is discharged through the second water outlet and the cooling water outlet pipe, further improving the circulation efficiency. The detection unit can detect data such as water pressure and flow rate generated by the phase-shifting transformer unit and the high-voltage frequency converter unit, further improving the adjustability of the water cooling system.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0019] Figure 1 This is an overall block diagram of a water cooling system according to an embodiment of the present invention;

[0020] Figure 2 This is a specific block diagram of a water cooling system according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of a phase-shifting transformer unit according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of a high-voltage frequency converter unit according to an embodiment of the present invention.

[0023] Attached Figure Captions

[0024] 1. Phase-shifting transformer; 2. Cooling fan; 3. Air-water heat exchanger; 4. Phase-shifting transformer unit; 5. Phase-shifting transformer duct; 6. First water inlet; 7. First water outlet; 10. Cooling water inlet pipe; 11. Power unit; 12. Cooling pipe; 13. Condenser; 14. Phase-shifting transformer cabinet; 15. Control unit; 16. Second water inlet; 17. Second water outlet; 18. High-frequency transformer unit; 19. PLC system; 20. Cooling water outlet pipe; 30. Detection unit; 31. Flow meter; 32. First pressure gauge; 33. Second pressure gauge; 52. First valve; 53. Second valve; 51. Third valve; 54. Fourth valve. Detailed Implementation

[0025] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the invention will be more thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0026] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a full understanding of embodiments of the invention. However, those skilled in the art will recognize that the technical solutions of the invention can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of the invention.

[0027] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller node devices.

[0028] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0029] It should be noted that "multiple" in this article refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0030] The implementation details of the technical solutions in the embodiments of the present invention are described in detail below:

[0031] See Figures 1-4 This invention provides a water cooling system. The water cooling system includes a phase-shifting transformer unit 4, a high-voltage frequency converter unit 18, a detection unit 30, a cooling water outlet pipe 10, and a cooling water inlet pipe 20. The phase-shifting transformer unit 4 includes a first water outlet 7 and a first water inlet 6. The high-voltage frequency converter unit 18 includes a second water inlet 16 and a second water outlet 17. The first water outlet 7 is connected to the second water inlet 16. The first water inlet 6 is connected to the cooling water inlet pipe 10, and the second water outlet 17 is connected to the cooling water outlet pipe 20. The detection unit 30 is connected to both the phase-shifting transformer unit 4 and the high-voltage frequency converter unit 18.

[0032] Specifically, the heat generated by the high-voltage frequency converter unit 18 is dissipated through the first water outlet 7 and the second water inlet 6, while simultaneously being cooled through the first water inlet 6 and the cooling water inlet pipe 10. The generated hot water is discharged through the second water outlet 17 and the cooling water outlet pipe 20, further improving the circulation efficiency. The detection unit 30 can detect data such as water pressure and flow rate generated by the phase-shifting transformer unit 4 and the high-voltage frequency converter unit 18, further improving the adjustability of the water cooling system.

[0033] Furthermore, the detection unit 30 includes a flow meter 31 and a first pressure gauge 32; both the flow meter 31 and the first pressure gauge 32 are located between the first water inlet 6 and the cooling water inlet pipe 10.

[0034] Specifically, by placing both the flow meter 31 and the first pressure gauge 32 between the first water inlet 6 and the cooling water inlet pipe 10, the water volume and water pressure between the phase-shifting voltage converter 4 and the high-voltage frequency converter 18 can be monitored in real time.

[0035] Furthermore, the detection unit 30 also includes a second pressure gauge 33, which is located between the first water outlet 7 and the second water inlet 16.

[0036] Specifically, by placing the second pressure gauge 33 between the first outlet 7 and the second inlet 16, the current water pressure of the high-voltage frequency converter 18 can be monitored in real time. The second pressure gauge 33 can also monitor the pressure at the cooling water inlet of the power unit 11.

[0037] Furthermore, the phase-shifting transformer unit 4 includes a phase-shifting transformer 1, a cooling fan 2, and a water-air heat exchanger 3; the water-air heat exchanger 3 is connected to the phase-shifting transformer 1, the cooling fan 2, the first water outlet 7, and the first water inlet 6, respectively.

[0038] Specifically, the phase-shifting transformer unit consists of a phase-shifting transformer 1, a phase-shifting transformer cooling fan 2, a water-air exchanger 3, and a phase-shifting transformer cabinet 4. The phase-shifting transformer cabinet 4 and the transformer cabinet form a phase-shifting transformer air duct 5. The first water inlet 6 connects the cooling water inlet pipe 10 to the water-air exchanger 3, and the first water outlet 7 circulates the water after heat exchange in the water-air exchanger 3 through a stainless steel pipe to the intermediate system piping. The phase-shifting transformer 1, cooling fan 2, water-air exchanger 3, and phase-shifting transformer air duct 5 are all installed inside the phase-shifting transformer cabinet 4.

[0039] Furthermore, the phase-shifting transformer unit 4 also includes a phase-shifting transformer duct 5, which is located above the cooling fan 2 and is connected to the air-water heat exchanger 3.

[0040] Specifically, by setting the phase-shifting transformer duct 5 above the cooling fan 2, the cold air generated by the cooling fan 2 can be transported to the air-water heat exchanger 3 through the phase-shifting transformer duct 5 for the air-water heat exchanger 3 to operate.

[0041] Furthermore, the high-voltage frequency converter 18 includes a condenser 13 and a power unit 11; the condenser 13 is connected to the power unit 11, the second water inlet 16 and the second water outlet 17 respectively.

[0042] Specifically, the high-voltage frequency converter 18 includes a power unit 11, a cooling pipe 12, a condenser 13, a cabinet 14, and a control unit 15. The condenser 13 is connected to a second water inlet 16, which connects to the clean circulating cooling water of the intermediate system pipe, and a second water outlet 17 circulates the heat-exchanged clean circulating cooling water to the cooling water outlet pipe 20.

[0043] Furthermore, the high-voltage frequency converter 18 also includes a control unit 15, which is connected to the condenser 13 and the power unit 11 respectively.

[0044] Specifically, the entire system is monitored through the control unit 15, which is connected to the PLC system 19. All analog and digital signals are uploaded to the control unit 15, which allows for monitoring of the water cooling system's operating status. This ensures timely alarms in case of problems with the high-voltage frequency converter 18, preventing accidents from escalating.

[0045] Furthermore, the high-voltage frequency converter 18 also includes a cooling pipe 12, which is connected to the condenser 13, the power unit 11, the second water inlet 16, and the second water outlet 17, respectively.

[0046] Specifically, by connecting the cooling pipe 12 to the condenser 13, the power unit 11, the second water inlet 16, and the second water outlet 17 respectively, cooling water can be delivered to the heat-generating power unit 11, thereby cooling the power unit 11 and achieving a good cooling effect.

[0047] Furthermore, it also includes a first valve 52 and a second valve 53; the first valve 52 and the second valve 53 are disposed between the first outlet 7 and the second inlet 16.

[0048] Specifically, the water flow rate is controlled by the first valve 52 and the second valve 53, and the water volume can be controlled by opening / closing the corresponding valves. The flow meter 31 and the second pressure gauge 32 installed on the cooling water inlet pipe 10 can monitor the flow rate and pressure at the first water inlet 6 corresponding to the phase-shifting transformer. The flow rate at the first water inlet 6 of the phase-shifting transformer is consistent with the flow rate at the second water inlet 16 connected to the power unit 11. The flow meter 31, the first pressure gauge 32, and the second pressure gauge 33 all have analog output contacts, which can connect the pressure signal or flow signal to the control unit 15 in the high-voltage frequency converter unit through the control cable.

[0049] Furthermore, it also includes a third valve 51 and a fourth valve 54; the third valve 51 is located between the first water inlet 6 and the cooling water inlet pipe 10; the fourth valve 54 is located between the second water outlet 17 and the cooling water outlet pipe 20.

[0050] Specifically, by means of a third valve 51 located between the first water inlet 6 and the cooling water inlet pipe 10, and a fourth valve 54 located between the second water outlet 17 and the cooling water outlet pipe 20, the water flow rate and pressure between the first water inlet 6 and the cooling water inlet pipe 10, as well as the water flow rate and pressure between the second water outlet 17 and the cooling water outlet pipe 20, can be controlled.

[0051] In this invention, the air-water heat exchanger 3 adopts air-water heat exchange technology, and the condenser 13 of the high-voltage frequency conversion unit 18 adopts phase change heat exchange technology. Therefore, the outlet water temperature of the air-water heat exchanger 3 can meet the inlet temperature requirements of the power unit 11 and the condenser 13, and safely remove the heat generated by the phase-shifting transformer 1 and the power unit 11 in the high-voltage frequency conversion unit 18, thereby reducing the overall circulating water consumption and reducing the capacity of the water supply pump group, thus achieving the goal of energy saving and consumption reduction.

[0052] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A water cooling system, characterized in that, include: The system comprises a phase-shifting transformer unit, a high-voltage frequency converter unit, a detection unit, a cooling water outlet pipe, and a cooling water inlet pipe; the phase-shifting transformer unit includes a first water outlet and a first water inlet; the high-voltage frequency converter unit includes a second water inlet and a second water outlet; the first water outlet is connected to the second water inlet; the first water inlet is connected to the cooling water inlet pipe, and the second water outlet is connected to the cooling water outlet pipe; the detection unit is connected to both the phase-shifting transformer unit and the high-voltage frequency converter unit. The phase-shifting transformer unit includes a phase-shifting transformer, a cooling fan, and a water-air heat exchanger; the water-air heat exchanger is connected to the phase-shifting transformer, the cooling fan, the first water outlet, and the first water inlet, respectively. The high-voltage frequency conversion unit includes a condenser and a power unit; the condenser is connected to the power unit, the second water inlet and the second water outlet respectively. The air-water heat exchanger uses air-water heat exchange technology, and the condenser of the high-voltage frequency converter uses phase change heat exchange technology. The phase-shifting transformer unit also includes a phase-shifting transformer duct, which is located above the cooling fan and connected to the air-water heat exchanger. By installing a phase-shifting transformer duct above the cooling fan, the cool air generated by the cooling fan can be transported to the air-water heat exchanger through the phase-shifting transformer duct for the air-water heat exchanger to operate.

2. The water cooling system according to claim 1, characterized in that, The detection unit includes a flow meter and a first pressure gauge; both the flow meter and the first pressure gauge are located between the first water inlet and the cooling water inlet pipe.

3. The water cooling system according to claim 2, characterized in that, The detection unit further includes a second pressure gauge, which is located between the first water outlet and the second water inlet.

4. The water cooling system according to claim 1, characterized in that, The high-voltage frequency converter also includes a control unit, which is connected to the condenser and the power unit respectively.

5. The water cooling system according to claim 4, characterized in that, The high-voltage frequency converter unit also includes a cooling pipeline, which is connected to the condenser, the power unit, the second water inlet, and the second water outlet.

6. The water cooling system according to claim 1, characterized in that, It also includes a first valve and a second valve; the first valve and the second valve are located between the first outlet and the second inlet.

7. The water cooling system according to claim 1, characterized in that, It also includes a third valve and a fourth valve; the third valve is located between the first water inlet and the cooling water inlet pipe; the fourth valve is located between the second water outlet and the cooling water outlet pipe.

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