CN213711244U

CN213711244U - Automatic water supply pressure stabilizer for water cooling system

Info

Publication number: CN213711244U
Application number: CN202021595460.0U
Authority: CN
Inventors: 王洋羊
Original assignee: Longyuan Power Group Shanghai Wind Power Co Ltd
Current assignee: Longyuan Power Group (Shanghai) new energy Co.,Ltd.
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-07-16
Anticipated expiration: 2030-08-04

Abstract

The application provides an automatic water supply voltage regulator device for water cooling system includes: circulating pump, converter, ripple formula voltage regulator device, water tank, outer cold radiator and three-way valve, the circulating pump export communicates three-way valve and converter import in proper order, constitutes the inner loop, the three-way valve still communicates cold radiator and converter import in proper order, constitutes the extrinsic cycle, the circulating pump export still is provided with ripple formula voltage regulator device between importing with the converter, voltage regulator device is connected with the water tank. The ripple formula voltage regulator device that this application adopted replaces traditional gas accumulator as wind turbine generator system water-cooling energy storage equipment, improves water cooling system stability, reduces the fault rate, has also solved water-cooling voltage regulator device and has received the corruption problem.

Description

Automatic water supply pressure stabilizer for water cooling system

Technical Field

The application relates to the technical field of wind power generation, in particular to an automatic water replenishing and pressure stabilizing device for a water cooling system.

Background

The wind generating set is a device for converting wind energy into mechanical energy, the rotating mechanical energy is transmitted to a generator through a transmission chain system, and electric energy generated by the generator is transmitted to a power grid through a converter system. The converter system mainly functions to convert low-frequency electric energy generated by the generator into power-frequency electric energy meeting the requirements of a power grid, and is one of important parts of a wind turbine generator.

At present, the heat dissipation of a megawatt direct-drive wind generating set converter system mainly adopts a water circulation cooling mode, and the heat absorption of water is large under the condition of the same temperature rise by mainly utilizing the large specific heat coefficient of water and the same volume of water and air. The variable-flow water cooling system needs to be regularly maintained by site operation and maintenance personnel due to heat consumption, leakage and the like in the operation process, so that operations such as water replenishing, air replenishing and the like are performed, and the water cooling system is ensured to operate under normal working conditions; when the water cooling system gives a warning of low pressure, operation and maintenance personnel need to carry the cooling liquid and a self-made water replenishing device to replenish the cooling liquid in the pipeline of the water cooling system.

The water cooling device of the current generator set usually adopts a gas energy accumulator mode to stabilize the voltage, the device has poor stability and high failure rate, and the gas energy accumulator has the problems of narrow maintenance operation space, long time consumption for fault treatment and the like besides high failure rate.

Disclosure of Invention

The application provides an automatic water supply voltage stabilizer for water cooling system solves current water cooling system's voltage stabilizer problem, is dedicated to improving water cooling system stability, reduces economic loss, improves the generated energy.

The application provides a pair of water cooling system automatic water supply voltage regulator device includes: circulating pump, converter, ripple formula voltage regulator device, water tank, outer cold radiator and three-way valve, the circulating pump export communicates three-way valve and converter import in proper order, constitutes the inner loop, the three-way valve still communicates cold radiator and converter import in proper order, constitutes the extrinsic cycle, set up ripple formula voltage regulator device between the circulating pump export and the converter import, ripple formula voltage regulator device still is connected with the water tank.

In some embodiments, the corrugated voltage stabilization device comprises: the upper portion of the upper shell is provided with an air vent, the lower portion of the lower shell is provided with a pipe joint, a cooling cavity is formed inside the upper shell and the lower shell after the upper shell and the lower shell are buckled up and down, a corrugated pipe is arranged on the wall of the cooling cavity, cooling liquid is arranged in the corrugated pipe, and when the water level in the corrugated pressure stabilizing device drops, the water tank automatically opens a valve to replenish water, so that the water level in the pressure stabilizing device is kept at a specified position.

In some embodiments, a sealing ring is further arranged between the upper shell and the lower shell, and the upper shell and the lower shell are fastened through bolts.

In some embodiments, the bellows is made of a corrosion resistant metal.

In some embodiments, the corrugated pressure stabilizer is provided with a release valve, and the release valve is communicated with the corrugated pipe.

In some embodiments, the pipe joint is a threaded pipe, and the thread model of the interface pipe is the same as that of the interface pipe used for matching the gas accumulator of the existing unit.

According to the embodiment, the corrugated voltage stabilizing device is used as a water-cooling energy storage device of the wind turbine generator instead of a traditional gas energy accumulator, so that the stability of a water-cooling system is improved, the failure rate is reduced, and the problem that the water-cooling voltage stabilizing device is corroded is solved; still can be under the prerequisite that does not change water cooling system overall structure, the on-the-spot reality of standing, change current gas energy storage ware, it is convenient to install, practices thrift the transformation time, has reduced the work degree of difficulty, improves water cooling system stability.

Drawings

FIG. 1 is a diagram illustrating an automatic water replenishing and pressure stabilizing apparatus for a water cooling system according to an embodiment;

fig. 2 is a structural diagram of a metal corrugated voltage regulator according to an embodiment.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings by way of specific embodiments. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

The terms "communicate" and "couple" as used herein, unless otherwise specified, include both communication, direct and indirect communication (coupling).

Referring to fig. 1-2, the present application provides an automatic water supply pressure stabilizing device for a water cooling system, comprising: the circulating pump 3, the converter 4, the corrugated pressure stabilizing device 5, the water tank 6, the external cooling radiator 4 and the three-way valve 2, wherein the outlet of the circulating pump 3 is sequentially communicated with the three-way valve 2 and the inlet of the converter 4 through a first pipeline 71 to form internal circulation; the three-way valve 2 is also sequentially communicated with the cold radiator 1 and the inlet of the converter 4 through a second pipeline 72 to form external circulation; a corrugated voltage stabilizer 5 is also arranged between the outlet of the circulating pump 3 and the inlet of the converter 4. The corrugated voltage stabilizing device 5 is arranged at the position, so that pressure impact generated when the working state of the circulating pump 3 is changed can be effectively absorbed, meanwhile, the inlet pressure of the converter 4 can be compensated in time, and the stability of the pressure of cooling liquid flowing through the converter 4 is ensured.

The circulating pump 3 provides power for the internal circulation of the whole system, and the flow of the system is ensured to meet the requirement of cold and heat exchange. The circulation pump 3 is damaged or the efficiency is reduced to directly cause the flow of the system to be reduced, heat cannot be taken away in time, and the converter has over-temperature faults.

The three-way valve 2 is used for internal and external circulation switching, and when the unit operation power is low, the three-way valve 2 keeps an internal circulation state so as to reduce the power consumption of the heat dissipation system; when the unit operating power is higher, the three-way valve is switched to the external circulation mode, and the system heat dissipation power is increased. Specifically, the first end of three-way valve 2 is connected with the outlet of circulating pump 3, the second end of three-way valve 2 is connected with converter 4, and the third end of three-way valve 2 is connected with external cooling radiator 4.

The external cooling radiator 4 is a core component of heat exchange of the water cooling system, and after the external cooling radiator is damaged or aged, the heat dissipation efficiency is greatly reduced, so that the converter is directly over-temperature or power-limited operation.

The corrugated type voltage stabilizer 5 includes: the cooling device comprises an upper shell 52 and a lower shell 56, wherein the upper part of the upper shell 52 is provided with a vent hole 51, the lower part of the lower shell 56 is provided with a pipe joint 57, the upper shell 52 and the lower shell 56 are buckled up and down to form a cooling cavity, the wall of the cooling cavity is provided with a corrugated pipe 53, and cooling liquid is arranged in the corrugated pipe 53. When the water level in the corrugated pressure stabilizer 5 drops, the water tank 6 automatically opens the valve to replenish water, so that the water level in the pressure stabilizer 5 is kept at a specified position.

In some embodiments, a sealing ring 55 is further disposed between the upper housing 52 and the lower housing 56, and the upper housing 52 and the lower housing 56 are fastened by bolts 54.

In some embodiments, the bellows 53 is machined from a corrosion-resistant metal to be corrugated and fully sealed, and the corrugated structure is utilized to achieve a range of good deformability. The rigid counter force is 0.5bar-2bar, and the pressure resistance is more than 10 bar.

In some embodiments, the bellows-type pressure stabilizer 5 is provided with a release valve, which communicates with the bellows 53. After the installation of the bellows-type pressure stabilizer 5, the sealing condition is checked, and the bellows is observed whether air exists or not, and if necessary, the air is exhausted through an air release valve.

In some embodiments, coupling 57 is a threaded pipe, the same type of interface pipe thread as used by existing units to mate gas accumulators, facilitating retrofitting and replacement of existing water cooling systems.

The present application has been described with reference to specific examples, which are provided only to aid understanding of the present application and are not intended to limit the present application. For a person skilled in the art to which the application pertains, several simple deductions, modifications or substitutions may be made according to the idea of the application.

Claims

1. The utility model provides an automatic water supply pressure stabilizing device for water cooling system which characterized in that includes: circulating pump, converter, ripple formula voltage regulator device, water tank, outer cold radiator and three-way valve, the circulating pump export communicates three-way valve and converter import in proper order, constitutes the inner loop, the three-way valve still communicates cold radiator and converter import in proper order, constitutes the extrinsic cycle, the circulating pump export still is provided with ripple formula voltage regulator device between with the converter import, ripple formula voltage regulator device still is connected with the water tank.

2. The apparatus of claim 1, wherein the corrugated regulator apparatus comprises: the upper portion of the upper shell is provided with an air vent, the lower portion of the lower shell is provided with a pipe joint, a cooling cavity is formed inside the upper shell and the lower shell after the upper shell and the lower shell are buckled up and down, a corrugated pipe is arranged on the wall of the cooling cavity, cooling liquid is arranged in the corrugated pipe, and when the water level in the corrugated pressure stabilizing device drops, the water tank automatically opens a valve to replenish water, so that the water level in the pressure stabilizing device is kept at a specified position.

3. The device of claim 2, wherein a sealing ring is further disposed between the upper casing and the lower casing, and the upper casing and the lower casing are fastened by bolts.

4. The apparatus of claim 2, wherein the bellows is made of corrosion resistant metal.

5. The device according to claim 2, wherein the bellows-type pressure stabilizer is provided with a release valve, and the release valve is communicated with the bellows.

6. The apparatus of claim 2, wherein the coupler is a threaded pipe having the same type of interface pipe thread used by existing units to match gas accumulators.