Pressure regulating device for hydraulic station of wind turbine generator

Abstract

The invention discloses a pressure regulating device for a hydraulic station of a wind turbine generator. The pressure regulating device comprises an oil tank, the oil way component comprises a pipeline assembly arranged in the oil tank and a fixing assembly arranged on one side of the pipeline assembly; the pressure regulating component comprises a connecting assembly arranged on one side of the upper portion of the oil tank and a driving assembly arranged on one side of the connecting assembly; the pressure measuring assembly is arranged above the oil tank and is connected with the connecting assembly; the pressure relief assembly is arranged on one side of the oil tank and connected with the pressure measuring assembly; through cooperation of the pressure regulating driving assembly and the connecting assembly, the device can achieve remote automatic pressure regulation, the practicability of the device is improved, through design of the pressure measuring assembly, the oil pressure in the oil tank is monitored, through design of the pressure relief assembly, the device can achieve automatic pressure relief, and when the internal pressure is too large, the device is prevented from being damaged. And the safety of the device is ensured by automatic pressure relief.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic station pressure regulation, and in particular to a hydraulic station pressure regulating device for a wind turbine generator set. Background Art

[0002] With the rapid development of the new energy industry, the update and iteration speed of wind turbines is getting faster and faster. The previously installed wind turbines are becoming increasingly weak and the failure rate is getting higher and higher, especially those with open cabins. Affected by the ambient temperature, as long as the components inside the cabin involve oil products, such as hydraulic pumps, gear boxes and other mechanisms, they are affected by the thermal expansion and contraction of oil products. For example, in the hydraulic station, when the hydraulic oil in the tank and the pipeline is affected by the thermal expansion and contraction of the ambient temperature, the pressure in the hydraulic station will continue to change. Since the main system pressure is constant, the hydraulic pump will run to increase the pressure, or the pressure relief valve will open to relieve the pressure. With the change of ambient temperature, if the hydraulic station runs for too long, it will directly lead to the hydraulic station running time exceeding the limit, resulting in unit failure. The personnel must stop the unit and climb the tower to perform maintenance on the faulty unit. The same is true for some other failures. Therefore, in order to effectively solve the above problems and avoid long-term shutdown of the unit, can the personnel operate remotely or without personnel? Summary of the invention

[0003] In view of the above problems existing in the pressure regulating device of the hydraulic station of the existing wind turbine generator set, the present invention is proposed.

[0004] Therefore, an object of the present invention is to provide a pressure regulating device for a hydraulic station of a wind turbine generator set.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: including an oil tank; an oil circuit component, which includes a pipeline assembly arranged inside the oil tank, and a fixing assembly arranged on one side of the pipeline assembly; a pressure regulating component, which is a connecting assembly arranged on one side above the oil tank, and a driving assembly arranged on one side of the connecting assembly; a pressure measuring assembly, which is arranged above the oil tank and connected to the connecting assembly; and a pressure relief assembly, which is arranged on one side of the oil tank and connected to the pressure measuring assembly.

[0006] As a preferred solution of the wind turbine hydraulic station pressure regulating device of the present invention, a tank plug is provided on one side of the tank, and a tank cap is provided on the upper end of the tank.

[0007] As a preferred solution of the wind turbine hydraulic station pressure regulating device of the present invention, the pipeline assembly includes a refueling port arranged at the upper end of the oil tank, a gear pump arranged inside the oil tank, and an oil pipe arranged on one side of the gear pump; wherein one end of the oil pipe is fixedly connected to the gear pump, and the other end of the oil pipe is fixedly connected to the top of the oil tank.

[0008] As a preferred solution of the wind turbine hydraulic station pressure regulating device of the present invention, the fixed component includes an oil level gauge arranged on one side of the oil tank, and a filter arranged inside the oil tank and fixedly connected to the lower end of the gear pump.

[0009] As a preferred solution of the wind turbine hydraulic station pressure regulating device of the present invention, the connecting assembly includes a valve seat arranged at the upper end of the oil tank, a pressure regulating valve arranged at one side of the valve seat, and a coupling arranged at one side of the pressure regulating valve; wherein the coupling is connected to the driving assembly.

[0010] As a preferred solution of the wind turbine hydraulic station pressure regulating device of the present invention, a valve seat oil inlet joint is arranged between the valve seat and the oil tank, and a valve seat oil outlet pipeline is arranged on one side of the valve seat oil inlet joint.

[0011] As a preferred solution of the wind turbine hydraulic station pressure regulating device of the present invention, the driving assembly includes a reducer arranged at one end of the coupling, an encoder arranged at one side of the reducer, and a driving motor arranged at one side of the encoder.

[0012] As a preferred solution of the wind turbine hydraulic station pressure regulating device of the present invention, wherein: the pressure measuring assembly includes a pressure gauge arranged on one side of the valve seat, and a solenoid valve at the upper end of the valve seat; Wherein, the solenoid valve is connected to the pressure relief component.

[0013] As a preferred solution of the wind turbine hydraulic station pressure regulating device of the present invention, the pressure relief assembly includes a pneumatic telescopic rod arranged at one end of the solenoid valve, and a fixing seat is arranged at one end of the pneumatic telescopic rod.

[0014] As a preferred solution of the wind turbine hydraulic station pressure regulating device of the present invention, the oil pipe and the valve seat oil outlet pipeline are both made of copper material.

[0015] The beneficial effects of the present invention are as follows: through the cooperation of the pressure regulating drive component and the connecting component, the device can realize long-distance automatic pressure regulation, thereby improving the practicability of the device; through the design of the pressure measuring component, the oil pressure in the oil tank can be monitored; through the design of the pressure relief component, the device can realize automatic pressure relief; when the internal pressure is too high, the automatic pressure relief ensures the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the pressure regulating device of the hydraulic station of the wind turbine unit of the present invention.

[0018] Figure 2 It is a schematic diagram of the internal structure of the fuel tank described in the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the regulating component described in the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the pressure relief assembly described in the present invention.

[0021] 100, oil tank, 200, oil circuit components, 201, pipeline components, 202, fixing components, 300, pressure regulating components, 301, connecting components, 302, driving components, 400, pressure measuring components, 401, pressure relief components, 100a, oil tank plug, 100b, oil tank cap, 201a, refueling port, 201b, gear pump, 201c, oil pipe, 202a, oil level gauge, 202b, filter, 301a, valve seat, 301b, pressure regulating valve, 301c, coupling, 303, valve seat oil inlet connector, 304, valve seat oil outlet pipeline, 302a, reducer, 302b, encoder, 302c, driving motor, 400a, pressure gauge, 400b, solenoid valve, 401a, pneumatic telescopic rod, 401b, fixing seat. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0026] Example 1 Reference Figure 1-4 , a wind turbine hydraulic station pressure regulating device is provided, comprising an oil tank 100; an oil circuit component 200, which comprises a pipeline component 201 arranged inside the oil tank 100, and a fixing component 202 arranged on one side of the pipeline component 201; a pressure regulating component 300, which comprises a connecting component 301 arranged on one side above the oil tank 100, and a driving component 302 arranged on one side of the connecting component 301; a pressure measuring component 400, which is arranged above the oil tank 100 and connected to the connecting component 301; a pressure relief component 401, which is arranged on one side of the oil tank 100 and connected to the pressure measuring component 400; Through the cooperation of the pressure regulating drive component 302 and the connecting component 301, the device can realize automatic pressure regulation over a long distance, thereby improving the practicability of the device. Through the design of the pressure measuring component 400, the oil pressure in the oil tank 100 can be monitored. Through the design of the pressure relief component 401, the device can realize automatic pressure relief. When the internal pressure is too high, the automatic pressure relief ensures the safety of the device.

[0027] Specifically, a fuel tank plug 100 a is provided on one side of the fuel tank 100 , and a fuel tank cover 100 b is provided on the upper end of the fuel tank 100 .

[0028] Furthermore, the pipeline assembly 201 includes a refueling port 201a arranged at the upper end of the fuel tank 100, a gear pump 201b arranged inside the fuel tank 100, and an oil pipe 201c arranged on one side of the gear pump 201b; wherein one end of the oil pipe 201c is fixedly connected to the gear pump 201b, and the other end of the oil pipe 201c is fixedly connected to the top of the fuel tank 100.

[0029] Furthermore, the fixed component 202 includes an oil level gauge 202a arranged on one side of the oil tank 100, and a filter screen 202b arranged inside the oil tank 100 and fixedly connected to the lower end of the gear pump 201b. The purpose of the filter screen 202b is to prevent dirt from entering the pipeline, and the oil level gauge 202a is to monitor the liquid level of the oil in the oil tank 100.

[0030] Furthermore, the connecting component 301 includes a valve seat 301a arranged at the upper end of the oil tank 100, a pressure regulating valve 301b arranged on one side of the valve seat 301a, and a coupling 301c arranged on one side of the pressure regulating valve 301b; wherein the coupling 301c is connected to the driving component 302, and the coupling 301c adopts an electronic hydraulic station pressure measuring device, which calculates the pressure through the flow rate and the area passed by the hydraulic oil, and feeds back the pressure value to the main controller through the signal line.

[0031] Furthermore, a valve seat oil inlet joint 303 is provided between the valve seat 301 a and the oil tank 100 , and a valve seat oil outlet pipeline 304 is provided on one side of the valve seat oil inlet joint 303 .

[0032] Furthermore, the drive assembly 302 includes a reducer 302a arranged at one end of the coupling 301c, an encoder 302b arranged at one side of the reducer 302a, and a drive motor 302c arranged at one side of the encoder 302b. The drive motor 302c is mainly composed of a high-precision stepper motor 42. The main controller calculates a pulse, and the stepper motor rotates 1°, which corresponds to a constant value of how much the pressure of the hydraulic station increases, controls the relative angle of the motor rotation, and realizes long-distance pressure regulation.

[0033] Furthermore, the pressure measuring assembly 400 includes a pressure gauge 400a disposed on one side of the valve seat 301a, and a solenoid valve 400b disposed on the upper end of the valve seat 301a; wherein the solenoid valve 400b is connected to the pressure relief component.

[0034] Operation process: The electronic hydraulic pressure measuring device is installed at the lower port of the hydraulic gauge of the hydraulic station, and the pressure value obtained by the test is fed back to the receiving port of the main controller through the 24V signal line to monitor the pressure of the hydraulic station at all times; the automatic reclosing device is connected to the primary switch of the hydraulic station power supply circuit in the cabin control cabinet; the automatic / remote pressure regulating and setting device is installed at the pressure regulating port of the hydraulic station; when the main controller detects that the pressure of the hydraulic station system is too low or too high due to thermal expansion and contraction of the oil, the manual pressure relief device relieves the pressure of the hydraulic station system, and stops running after the pressure is released. The automatic / remote pressure regulating and setting device calculates through the main controller, controls the internal servo motor to rotate to the corresponding angle to the appropriate pressure and then stops working. The main controller powers on the hydraulic station, and the hydraulic station re-pressurizes, and stops running when the pressure reaches the preset value.

[0035] Example 2 Reference Figure 1-4 This embodiment is different from the first embodiment in that the pressure relief assembly 401 includes a pneumatic telescopic rod 401a provided at one end of the solenoid valve 400b, and a fixing seat 401b provided at one end of the pneumatic telescopic rod 401a.

[0036] The other end of the pneumatic telescopic rod 401a is fixed by the fixing seat 401b, and the pressure relief can be automated by the setting of the pneumatic telescopic rod 401a. The pneumatic telescopic rod 401a is connected to the main controller by electrical signals.

[0037] The rest of the structure is the same as that of Example 1.

[0038] Example 3 Reference Figure 1-4 , this embodiment is different from the above embodiment in that the oil pipe 201c and the valve seat oil outlet pipe 304 are both made of copper. The benefits of using copper materials to make pipes in hydraulic systems mainly include the following aspects: Good thermal conductivity: Copper is an excellent thermal conductive material that can quickly transfer heat and maintain the stability of the oil. In the hydraulic system, the copper pipe can quickly transfer the heat of the oil to prevent the oil temperature from being too high, thereby extending the service life of the system; Corrosion resistance: Copper has good corrosion resistance and can resist corrosion from chemicals such as acids and alkalis. This property enables the copper pipe to remain stable even in harsh environments such as humidity, high temperature, and high pressure, ensuring the normal operation of the system; Easy to process and maintain: The copper pipe is simple to process, easy to cut and bend, easy to install, low maintenance cost, and not easy to damage after long-term use. These characteristics make the copper pipe more popular in hydraulic systems. Economic and environmental protection: The copper pipe has a long service life, reducing the cost and trouble of replacing the pipe; in addition, the copper pipe has a high recovery rate, which is in line with the concept of sustainable development.

[0039] The rest of the structure is the same as that of Example 2.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pressure regulating device for a hydraulic station of a wind turbine generator set, characterized in that: include, Fuel Tank (100); An oil circuit component (200), comprising a pipeline component (201) disposed inside the oil tank (100), and a fixing component (202) disposed on one side of the pipeline component (201); A pressure regulating component (300), comprising a connecting component (301) disposed on one side above the oil tank (100), and a driving component (302) disposed on one side of the connecting component (301); A pressure measuring assembly (400) disposed above the oil tank (100) and connected to the connecting assembly (301); A pressure relief assembly (401) is arranged on one side of the oil tank (100) and is connected to the pressure measuring assembly (400).

2. The pressure regulating device for a hydraulic station of a wind turbine generator set according to claim 1, characterized in that: A fuel tank plug (100a) is provided on one side of the fuel tank (100), and a fuel tank cover (100b) is provided on the upper end of the fuel tank (100).

3. The pressure regulating device for a hydraulic station of a wind turbine generator set according to claim 2, characterized in that: The pipeline assembly (201) comprises a refueling port (201a) provided at the upper end of the oil tank (100), a gear pump (201b) provided inside the oil tank (100), and an oil pipe (201c) provided at one side of the gear pump (201b); One end of the oil pipe (201c) is fixedly connected to the gear pump (201b), and the other end of the oil pipe (201c) is fixedly connected to the top of the oil tank (100).

4. The pressure regulating device for a hydraulic station of a wind turbine generator set as claimed in claim 3, characterized in that: The fixed component (202) comprises an oil level gauge (202a) disposed on one side of the oil tank (100), and a filter screen (202b) disposed inside the oil tank (100) and fixedly connected to the lower end of the gear pump (201b).

5. The pressure regulating device for a hydraulic station of a wind turbine generator set according to claim 4, characterized in that: The connection assembly (301) comprises a valve seat (301a) arranged at the upper end of the oil tank (100), a pressure regulating valve (301b) arranged at one side of the valve seat (301a), and a coupling (301c) arranged at one side of the pressure regulating valve (301b); Wherein, the coupling (301c) is connected to the driving assembly (302).

6. The pressure regulating device for a hydraulic station of a wind turbine generator set according to claim 5, characterized in that: A valve seat oil inlet joint (303) is provided between the valve seat (301a) and the oil tank (100), and a valve seat oil outlet pipeline (304) is provided on one side of the valve seat oil inlet joint (303).

7. The pressure regulating device for a hydraulic station of a wind turbine generator set according to claim 6, characterized in that: The driving assembly (302) comprises a reducer (302a) arranged at one end of the coupling (301c), an encoder (302b) arranged at one side of the reducer (302a), and a driving motor (302c) arranged at one side of the encoder (302b).

8. The pressure regulating device for a hydraulic station of a wind turbine generator set according to claim 7, characterized in that: The pressure measuring assembly (400) comprises a pressure gauge (400a) arranged on one side of the valve seat (301a), and a solenoid valve (400b) at the upper end of the valve seat (301a); Wherein, the solenoid valve (400b) is connected to the pressure relief component.

9. The pressure regulating device for a hydraulic station of a wind turbine generator set according to claim 8, characterized in that: The pressure relief assembly (401) comprises a pneumatic telescopic rod (401a) provided at one end of the solenoid valve (400b), and a fixing seat (401b) provided at one end of the pneumatic telescopic rod (401a).

10. The pressure regulating device for a hydraulic station of a wind turbine generator set according to claim 9, characterized in that: The oil pipe (201c) and the valve seat oil outlet pipe (304) are both made of copper.

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