Horizontal water supply cooling device

Abstract

The utility model provides a horizontal water supply cooling device, which relates to the technical field of power equipment cooling and comprises a main water supply device, a frequency converter electrical cabinet heat dissipation system and an external heat exchanger. The main body water supply device comprises a water pump, a first pipe section connected with a water outlet of the frequency converter electrical cabinet heat dissipation system and a water inlet of the water pump, a second pipe section connected with a water outlet of the water pump and a water inlet of the external heat exchanger, a third pipe section connected with the water inlet of the frequency converter electrical cabinet heat dissipation system, and a fourth pipe section connected with a water outlet of the external heat exchanger; the water pumps are horizontal water supply pumps, and the multiple water pumps are connected in parallel. According to the utility model, the reliability of the whole machine is improved, the overall structural strength is enhanced, the transportation and the maintenance are convenient, the heat dissipation efficiency is higher, and the application environment of the device is expanded by a water-cooling heat dissipation mode, so that the device can be used in more scenes.

Description

Technical Field

[0001] This utility model relates to the field of power equipment cooling technology, specifically a horizontal water supply cooling device. Background Technology

[0002] Currently, electric fracturing frequency converter skids on the market, as high-power power electronic devices, generate significant heat accumulation during operation. Due to the extremely high power density inside these devices and the complex and variable application environments, an effective heat dissipation solution is crucial to ensuring stable operation. Water cooling, due to its high efficiency, has become the preferred solution for heat dissipation of electric fracturing frequency converter skids.

[0003] Existing electric fracturing variable frequency skid-mounted water cooling systems typically employ a cooling water circulation system for heat dissipation. The system works as follows: cooling water, driven by the water supply unit, enters the frequency converter, exchanges heat with the converter's power components, and then carries the heat through pipes to an external air heat exchanger. In the air heat exchanger, the cooling water is cooled and flows back to the water supply unit, where it re-enters the frequency converter for heat exchange, thus forming a closed-loop system.

[0004] However, existing electric fracturing frequency converter skid-mounted water cooling systems have a series of problems. First, these systems are typically equipped with only a single water pump, resulting in low flow rate and low cooling efficiency, which in turn affects the overall reliability of the machine. Second, most water cooling systems use vertical water pumps. Because the pumps are heavy and located in the middle of the system, the overall center of gravity is high, increasing maintenance difficulty and hindering transportation and use. Furthermore, the electrical control boxes inside the water cooling systems often use air cooling. When these systems are placed inside electric fracturing frequency converter containers, the limited internal space leads to heat concentration, resulting in poor heat dissipation inside the electrical control boxes, further affecting the stable operation of the equipment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a horizontal water supply cooling device that solves the problems of existing water cooling devices, such as low flow rate, high center of gravity which makes transportation difficult, low air cooling efficiency, installation limitations caused by air cooling, high space requirements for installation of the device and frequency converter, complex installation and coordination, and difficulty in frequency converter debugging.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A horizontal water supply cooling device includes a main water supply unit, a frequency converter electrical cabinet heat dissipation system, and an external heat exchanger. The main water supply unit includes a water pump, a first pipe section connecting the outlet of the frequency converter electrical cabinet heat dissipation system to the inlet of the water pump, a second pipe section connecting the outlet of the water pump to the inlet of the external heat exchanger, a third pipe section connecting the inlet of the frequency converter electrical cabinet heat dissipation system, and a fourth pipe section connecting the outlet of the external heat exchanger. The third and fourth pipe sections are connected. The water pump is a horizontal water supply pump, and there are multiple water pumps connected in parallel.

[0008] Preferably, a deion flow meter, a deion tank, a precision filter, and a buffer tank are sequentially connected between the third pipe section and the first pipe section to form a branch pipe section from the third pipe section to the first pipe section.

[0009] Preferably, a heater is connected between the outlet of the water pump and the inlet of the external heat exchanger.

[0010] Preferably, a filter is connected to the fourth pipe section.

[0011] Preferably, a three-way valve is connected to the fourth pipe section, the first end of the three-way valve is connected to the outlet of the external heat exchanger, the second end of the three-way valve is connected to the second pipe section, and the third end of the three-way valve is connected to the inlet of the filter.

[0012] Preferably, a safety valve and a make-up air pump are connected to the branch pipe section E.

[0013] Preferably, the deionization tank is equipped with a replenishment pump.

[0014] Preferably, a precision filter is installed between the buffer tank and the deion tank, and a deion flow meter is installed between the deion tank and the third pipe section.

[0015] Preferably, a pressure sensor and a temperature sensor are respectively connected to the first pipe segment and the third pipe segment, and a conductivity sensor is also connected to the third pipe segment.

[0016] Preferably, the horizontal water supply cooling device further includes an electrical control cabinet, which is located on the upper front of the main water supply device. The inverter electrical cabinet heat dissipation system includes an internal heat exchanger, which is located below the electrical control cabinet and forms a complete air duct with the cooling fan inside the electrical control cabinet. The water pump is located on the upper front of the main water supply device. The first pipe section and the third pipe section are placed in the lower rear area of ​​the main water supply device, and the second pipe section and the fourth pipe section are placed in the upper rear area of ​​the main water supply device.

[0017] This utility model provides a horizontal water supply cooling device. It has the following beneficial effects:

[0018] Improve overall system reliability: By adopting a two-in-one-out pump configuration, the pumps can be used in rotation, thereby enhancing the stability and reliability of the entire device. Even if one pump fails, the system can still operate stably.

[0019] Compact yet strong: The horizontal water pump design makes the overall layout of the device more compact and lowers the center of gravity, which not only improves the stability of the device but also enhances the overall structural strength, making it easier to transport and maintain.

[0020] High heat dissipation efficiency and wide application range: The internal electrical control box adopts water cooling, which is more efficient than traditional air cooling, effectively reducing the temperature of the electrical control cabinet and extending the service life of the equipment. At the same time, water cooling also expands the application environment of the device, enabling it to be used in more scenarios. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the pipe connection structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the front structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the rear structure of the present invention;

[0024] Figure 4 This is a simplified structural diagram of the rear axial side of this utility model;

[0025] Figure 5 This is a simplified structural diagram of the other side of the rear of this utility model;

[0026] Figure 6 This is a schematic diagram of the air duct of the electrical control cabinet of this utility model.

[0027] In the diagram: 11-Main water supply device, 12-Internal heat exchanger, 13-Electrical control cabinet, 14-Inverter electrical cabinet heat dissipation system, 15-External heat exchanger, 20A-First pipe section, 20B-Second pipe section, 20C-Third pipe section, 20D-Fourth pipe section, 21-Deion flow meter, 22-Deion tank, 23-Precision filter, 24-Buffer tank, 25-Water pump, 26-Heater, 27-Filter, 31-Cooling fan, 41-Three-way valve, 51-Safety valve, 52-Air replenishment pump, 53-Liquid replenishment pump, 61-Pressure sensor, 62-Temperature sensor, 63-Conductivity sensor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1 The utility model patent proposes a horizontal water supply cooling device, including a main water supply device 11, a frequency converter electrical cabinet heat dissipation system 14, and an external heat exchanger 15. The main water supply device 11 includes a water pump 25, a first pipe section 20A connecting the outlet of the frequency converter electrical cabinet heat dissipation system 14 and the inlet of the water pump 25, a second pipe section 20B connecting the outlet of the water pump 25 and the inlet of the external heat exchanger 15, a third pipe section 20C connecting the inlet of the frequency converter electrical cabinet heat dissipation system 14, and a fourth pipe section 20D connecting the outlet of the external heat exchanger 15. The third pipe section 20C and the fourth pipe section 20D are connected. The water pump 25 is a horizontal water supply pump, and there are 3 water pumps 25 connected in parallel. This invention aims to address the shortcomings of existing water cooling devices, such as low flow rate, high center of gravity hindering transportation, low air cooling efficiency, installation limitations due to air cooling, high space requirements for installation and inverter integration, complex installation coordination, and difficult inverter debugging. Three main circulating horizontal water pumps 25 are placed at the bottom of the device, connecting the first pipe section 20A and the second pipe section 20B to provide circulation pressure for the overall water supply cooling system. During operation of the entire liquid cooling circulation system, multiple water pumps 25 operate alternately, which not only increases the lifespan of the pumps 25 but also ensures stable system operation in case of failure of one pump 25. Furthermore, the horizontal design of the pumps 25, installed at the bottom of the main water supply device 11, lowers the overall center of gravity compared to traditional vertical pumps, reducing maintenance and transportation difficulties.

[0030] A deion flow meter 21, a deion tank 22, a precision filter 23, and a buffer tank 24 are sequentially connected between the third pipe section 20C and the first pipe section 20A, forming a branch pipe section 20E from the third pipe section 20C to the first pipe section 20A.

[0031] A heater 26 is connected between the outlet of the water pump 25 and the inlet of the external heat exchanger 15 to heat the liquid in the overall liquid cooling circulation system; a filter 27 is connected to the fourth pipe section 20D to filter the liquid in the overall liquid cooling circulation.

[0032] A three-way valve 41 is connected to the fourth pipe section 20D. The first end of the three-way valve 41 is connected to the outlet of the external heat exchanger 15, the second end of the three-way valve 41 is connected to the second pipe section 20B, and the third end of the three-way valve 41 is connected to the inlet of the filter 27.

[0033] A precision filter 23 is installed between the buffer tank 24 and the deion tank 22 to filter the liquid in the branch pipe section 20E, ensuring the stability of the liquid composition of the overall liquid cooling circulation system. A deion flow meter 21 is installed between the deion tank 22 and the third pipe section 20C to detect the ion water content of the liquid in the overall liquid cooling circulation system, ensuring the liquid composition content of the overall liquid cooling circulation system.

[0034] Please see Figure 4 and Figure 5 A safety valve 51 and a make-up air pump 52 are connected to the branch pipe section 20E to ensure the stability of the buffer tank during fracturing. A make-up liquid pump 53 is installed on the deionization tank 22 to make up liquid for the overall liquid cooling circulation system and avoid the problem of insufficient circulating liquid caused by leakage of the overall liquid cooling circulation system.

[0035] Please see Figure 4 and Figure 5 A pressure sensor 61 and a temperature sensor 62 are connected to the first pipe section 20A and the third pipe section 20C, respectively. A conductivity sensor 63 is also connected to the third pipe section 20C. The pressure sensor 61 and the temperature sensor 62 detect parameters such as temperature and hydraulic pressure within the circulation system, respectively. The conductivity sensor 63 detects the conductivity of the liquid within the overall liquid cooling circulation system, ensuring the liquid's insulation performance.

[0036] Please see Figure 2 , Figure 3 and Figure 6 A horizontal water supply cooling device includes an electrical control cabinet 13, which is located on the upper front of the main water supply device 11 to facilitate human-machine interaction. The inverter electrical cabinet cooling system 14 includes an internal heat exchanger 12, located below the electrical control cabinet 13 and forming a complete air duct with the cooling fan 31 inside the electrical control cabinet 13. This enables the entire horizontal water pump cooling device to achieve liquid cooling, avoiding the application environment limitations of air cooling. The water pump 25 is located on the upper front of the main water supply device 11. The first pipe section 20A and the third pipe section 20C are placed in the lower rear area of ​​the main water supply device 11, and the second pipe section 20B and the fourth pipe section 20D are placed in the upper rear area of ​​the main water supply device 11.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A horizontal water supply cooling device, comprising a main water supply device (11), a frequency converter electrical cabinet heat dissipation system (14), and an external heat exchanger (15); the main water supply device (11) comprises a water pump (25), a first pipe section (20A) connecting the outlet of the frequency converter electrical cabinet heat dissipation system (14) to the inlet of the water pump (25), a second pipe section (20B) connecting the outlet of the water pump (25) to the inlet of the external heat exchanger (15), a third pipe section (20C) connecting the inlet of the frequency converter electrical cabinet heat dissipation system (14), and a fourth pipe section (20D) connecting the outlet of the external heat exchanger (15), wherein the third pipe section (20C) and the fourth pipe section (20D) are connected, characterized in that: The water pump (25) is a horizontal water supply pump, and there are multiple water pumps (25) connected in parallel.

2. The horizontal water supply cooling device according to claim 1, characterized in that: The third pipe section (20C) is connected in sequence to the first pipe section (20A) by a deion flow meter (21), a deion tank (22), a precision filter (23) and a buffer tank (24), forming a branch pipe section (20E) from the third pipe section (20C) to the first pipe section (20A).

3. A horizontal water supply cooling device according to claim 1, characterized in that: A heater (26) is connected between the outlet of the water pump (25) and the inlet of the external heat exchanger (15).

4. A horizontal water supply cooling device according to claim 1, characterized in that: A filter (27) is connected to the fourth pipe section (20D).

5. A horizontal water supply cooling device according to claim 4, characterized in that: A three-way valve (41) is connected to the fourth pipe section (20D). The first end of the three-way valve (41) is connected to the outlet of the external heat exchanger (15), the second end of the three-way valve (41) is connected to the second pipe section (20B), and the third end of the three-way valve (41) is connected to the inlet of the filter (27).

6. A horizontal water supply cooling device according to claim 2, characterized in that: A safety valve (51) and an air supply pump (52) are connected to the branch pipe section (20E).

7. A horizontal water supply cooling device according to claim 6, characterized in that: The deionization tank (22) is equipped with a replenishment pump (53).

8. A horizontal water supply cooling device according to claim 7, characterized in that: A precision filter (23) is installed between the buffer tank (24) and the deion tank (22), and a deion flow meter (21) is installed between the deion tank (22) and the third pipe section (20C).

9. A horizontal water supply cooling device according to claim 1, characterized in that: A pressure sensor (61) and a temperature sensor (62) are respectively connected to the first pipe section (20A) and the third pipe section (20C), and a conductivity sensor (63) is also connected to the third pipe section (20C).

10. A horizontal water supply cooling device according to any one of claims 1-9, characterized in that: It also includes an electrical control cabinet (13), which is located on the upper front of the main water supply device (11). The inverter electrical cabinet heat dissipation system (14) includes an internal heat exchanger (12), which is located below the electrical control cabinet (13) and forms a complete air duct with the cooling fan (31) inside the electrical control cabinet (13). The water pump (25) is located on the upper front of the main water supply device (11). The first pipe section (20A) and the third pipe section (20C) are placed in the lower back area of ​​the main water supply device (11), and the second pipe section (20B) and the fourth pipe section (20D) are placed in the upper back area of ​​the main water supply device (11).

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