A water replenishment and pressure stabilization device for a high-level water tank in a wind power water cooling system

Abstract

This utility model discloses a water replenishment and pressure stabilization device for a high-level water tank in a wind power water-cooling system, comprising a tank body installed on a second-level platform inside the tower; several transverse partitions are staggered on both sides of the tank body, the transverse partitions being smaller than the cross-sectional area of ​​the tank body; a level gauge and a level switch are provided on the surface of the tank body; a breather valve is connected to the tank body, and a purification structure is provided on the breather valve; the purification structure includes an outer shell, inside which is an inner cylinder, and inside the inner cylinder, from one end away from the breather valve to the other end, there are sequentially arranged a moisture-absorbing layer, a waterproof fiberglass layer, a stainless steel wire mesh layer, and corrosion-resistant filter paper. The staggered transverse partitions inside this utility model can prevent lateral sloshing of the liquid inside the tank, reducing liquid surface oscillation and its impact on the level gauge; the multi-layer filtration structure inside the outer shell connected to the breather valve can remove salt spray during air intake, preventing it from corroding the internal structure.

Description

Technical Field

[0001] This utility model relates to the field of wind power equipment technology, specifically to a water replenishment and pressure stabilization device for a high-level water tank in a wind power water cooling system. Background Technology

[0002] Water cooling systems for wind turbine converters typically employ pressure expansion tanks to maintain pressure balance. However, expansion tanks have inherent technical limitations. As closed-loop systems, their pressure stabilization capabilities are limited by their structure, making them prone to failure when system pressure is too high or too low. Consequently, water cooling systems using expansion tanks as pressure balancing devices frequently experience low outlet valve pressure. Statistics show that this type of failure accounts for 50%-70% of all water cooling system failures, severely impacting system reliability. Therefore, existing technologies often replace expansion tank pressure stabilization systems with elevated water tank systems.

[0003] The elevated water tank pressure stabilization system mainly consists of a water tank, support frame, breather valve, level sensor, and connecting pipes. Its principle is to install the water tank on a second-level platform, using the height difference to provide a constant static pressure to the water cooling system. In practical use, elevated water tanks have some technical drawbacks. For example, the liquid level is prone to fluctuations during repeated filling and emptying processes, leading to repeated opening and calibration of the level gauge. Additionally, in offshore wind power or coastal wind farms, salt spray exists in the air. Salt spray, mainly composed of airborne salts (such as sodium chloride) and water vapor, is highly corrosive and significantly impacts equipment operation and lifespan. Current technology lacks breather valves for treating and blocking salt spray, indicating room for technological improvement. Utility Model Content

[0004] This invention aims to solve the aforementioned technical problems of technical defects and room for improvement in high-level water tanks, and provides a water replenishment and pressure stabilization device for high-level water tanks in wind power water cooling systems.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a water replenishment and pressure stabilization device for a high-level water tank of a wind power water cooling system, including a tank installed on a second-level platform inside the tower; the upper end of the tank is provided with an opening and a sealing cover plate that can cover the opening, and a transmission pipe connected to the water cooling pipe is provided below the tank, and a liquid inlet and outlet control valve is provided on the transmission pipe.

[0006] The tank body has several horizontal partition plates arranged alternately on both sides, and the horizontal partition plates are smaller than the cross-sectional area of ​​the tank body.

[0007] The surface of the tank is equipped with a level gauge and a level switch; a breather valve is connected to the tank, and a purification structure is provided on the breather valve; the purification structure includes an outer shell, one end of which is connected to the breather valve, and the other end of which is provided with an air hole;

[0008] The outer shell is provided with an inner cylinder, and the inner cylinder is provided with a moisture-absorbing layer, a waterproof fiberglass layer, a stainless steel wire mesh layer, and a corrosion-resistant filter paper in sequence from one end away from the breathing valve to the other end.

[0009] Furthermore, the tank body is provided with three legs along the circumference below. The legs are all L-shaped and face each other, and the legs are provided with several assembly holes.

[0010] Furthermore, the level gauge is a hydrostatic level gauge with a glass panel; the level switch is a float-type level switch.

[0011] Furthermore, one end of the inner cylinder is provided with an inlet / outlet 1 that communicates with the breathing valve and the outer shell, and the other end is provided with an inlet / outlet 2 that corresponds to the air hole.

[0012] Furthermore, both the inner cylinder and the outer shell are made of metal and are galvanized; the inner side of the inner cylinder is coated with a nano-coating.

[0013] Furthermore, the moisture-absorbing layer has a three-layer structure, with the inner layer near the glass fiber layer being hydrophobic fiber, the middle layer being moisture-absorbing fiber, and the outer layer being hydrophilic fiber.

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] The interior is equipped with several horizontal partitions that can prevent the liquid from sloshing laterally inside the tank, reduce liquid surface oscillation and its impact on the level gauge.

[0016] The outer casing connected to the breather valve is equipped with a multi-layer filter structure, which can remove salt spray during air intake to prevent it from corroding the internal structure, and can also absorb water vapor that follows the gas during air exhaust to prevent it from falling on the outside of the tank and causing corrosion over time. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the tank body of this utility model.

[0019] Figure 3 This is a schematic diagram of the internal structure of the outer shell and inner cylinder of this utility model.

[0020] As shown in the figure: 1. Tank body, 2. Support legs, 3. Sealing cover, 4. Transmission pipeline, 5. Liquid inlet / outlet control valve, 6. Level gauge, 7. Level switch, 8. Breathing valve, 9. Outer shell, 10. Vent, 11. Inner cylinder, 12. Inlet / outlet one, 13. Inlet / outlet two, 14. Moisture-absorbing layer, 15. Fiberglass layer, 16. Stainless steel wire mesh layer, 17. Corrosion-resistant filter paper, 18. Horizontal partition plate. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Example 1, in conjunction with Appendix Figure 1 A high-level water tank water replenishment and pressure stabilization device for a wind power water cooling system includes a tank 1 installed on a second-level platform inside the tower, which provides automatic water replenishment to the cooling device through the height difference; the tank 1 is provided with three legs 2 along the circumference below, each leg 2 is L-shaped and faces each other, and the legs 2 are provided with several mounting holes, which enable the tank 1 to be stably installed.

[0023] Combined with appendix Figure 1 The upper end of the tank body 1 is provided with an opening and a sealing cover plate 3 that can cover the opening. The lower part of the tank body 1 is provided with a transmission pipe 4 that connects to the water cooling pipe. The transmission pipe 4 is provided with a liquid inlet and outlet control valve 5. By operating the liquid inlet and outlet control valve 5 through an external control mechanism, the liquid in the tank body 1 can be transmitted through the transmission pipe 4.

[0024] Combined with appendix Figure 1 , 2 Several transverse partitions 18 are staggered on both sides inside the tank body 1. The transverse partitions 18 are smaller than the cross-sectional area inside the tank body 1. The transverse partitions 18 can prevent the liquid from swaying laterally inside the tank, reduce the liquid surface oscillation when the liquid level changes, and reduce the impact on the liquid level gauge.

[0025] Referring to the attached diagram, the surface of tank 1 is equipped with a level gauge 6 and a level switch 7; the level gauge 6 is a hydrostatic level gauge with a glass panel; the level switch 7 is a float-type level switch; the level gauge 6 and the level switch 7 complement each other, enabling more objective and accurate monitoring of the internal liquid level of tank 1, and further reducing the impact of liquid surface oscillation on the detection results;

[0026] Combined with appendix Figure 1 , 3 A breathing valve 8 is connected to the tank body 1, and a purification structure is provided on the breathing valve 8. Specifically, the purification structure includes an outer shell 9, one end of which is connected to the breathing valve 8, and the other end is provided with an air hole 10. An inner cylinder 11 is provided inside the outer shell 9. One end of the inner cylinder 11 is provided with an inlet and outlet 12 that is connected to the breathing valve 8 and the outer shell 9, and the other end is provided with an inlet and outlet 2 13 that corresponds to the air hole 10. Through the above structure, the gas passage is realized.

[0027] In addition, both the inner cylinder 11 and the outer shell 9 are made of metal and are galvanized. The inner side of the inner cylinder 11 is coated with a nano-coating, which can improve corrosion resistance.

[0028] Based on the above structure, the inner cylinder 11 is provided with a moisture-absorbing layer 14, a waterproof fiberglass layer 15, a stainless steel wire mesh layer 16, and a corrosion-resistant filter paper 17 sequentially from one end away from the breather valve 8 to the other end. The fiberglass layer has the characteristics of strong resistance and high filtration efficiency. The stainless steel wire mesh has high strength and can play an auxiliary support role in the middle. It is also durable and intercepts impurities in the incoming and outgoing air. The corrosion-resistant filter paper is widely used in salt spray filtration and has a good interception effect.

[0029] The moisture-absorbing layer 14 has a three-layer structure. The inner layer near the glass fiber layer 15 is made of hydrophobic fiber, the middle layer is made of moisture-absorbing fiber, and the outer layer is made of hydrophilic fiber. Thus, it can achieve unidirectional moisture conduction through differential capillary effect, which is convenient for absorbing the moisture carried in the exhaust gas and avoids dripping and causing corrosion on the outside of the tank 1.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A water replenishment and pressure stabilization device for a high-level water tank in a wind power water cooling system, comprising a tank (1) installed on a second-level platform inside the tower; characterized in that: The upper end of the tank (1) is provided with an opening and a sealing cover (3) that can cover the opening. The lower part of the tank (1) is provided with a transmission pipe (4) that connects to the water cooling pipe. The transmission pipe (4) is provided with a liquid inlet and outlet control valve (5). The tank (1) has several horizontal partitions (18) arranged alternately on both sides, and the horizontal partitions (18) are smaller than the cross-sectional area of ​​the tank (1). The surface of the tank (1) is provided with a level gauge (6) and a level switch (7); a breather valve (8) is connected to the tank (1), and a purification structure is provided on the breather valve (8); the purification structure includes an outer shell (9), one end of the outer shell (9) is connected to the breather valve (8), and the other end is provided with an air hole (10); The outer shell (9) is provided with an inner cylinder (11), and the inner cylinder (11) is provided with a moisture-absorbing layer (14), a waterproof fiberglass layer (15), a stainless steel wire mesh layer (16), and a corrosion-resistant filter paper (17) in sequence from one end away from the breathing valve (8) to the other end.

2. The water replenishment and pressure stabilization device for a high-level water tank in a wind power water-cooling system according to claim 1, characterized in that: The tank body (1) has three legs (2) along its circumference. The legs (2) are all L-shaped and face each other. The legs (2) have several assembly holes.

3. The water replenishment and pressure stabilization device for a high-level water tank in a wind power water-cooling system according to claim 1, characterized in that: The level gauge (6) is a hydrostatic level gauge with a glass panel; the level switch (7) is a float-type level switch.

4. The water replenishment and pressure stabilization device for a high-level water tank in a wind power water-cooling system according to claim 1, characterized in that: The inner cylinder (11) has an inlet and outlet (12) at one end that communicates with the breathing valve (8) and the outer shell (9), and an inlet and outlet (13) at the other end that corresponds to the air hole (10).

5. The water replenishment and pressure stabilization device for a high-level water tank in a wind power water-cooling system according to claim 4, characterized in that: The inner cylinder (11) and the outer shell (9) are both made of metal and are galvanized; the inner side of the inner cylinder (11) is provided with a nano-coating.

6. The water replenishment and pressure stabilization device for a high-level water tank in a wind power water-cooling system according to claim 1, characterized in that: The moisture-absorbing layer (14) has a three-layer structure, with the inner layer near the glass fiber layer (15) being hydrophobic fiber, the middle layer being moisture-absorbing fiber, and the outer layer being hydrophilic fiber.

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