Electro-hydraulic control integrated high-pressure porous anti-explosion quick regulating valve

Abstract

The utility model discloses an electro-hydraulic control integrated high-pressure porous explosion-proof rapid regulating valve, which is composed of an electro-hydraulic execution unit and a main valve, the electro-hydraulic execution unit comprises an oil tank, a main oil supply oil way, an electromagnetic directional valve, a control loop and an execution oil cylinder which are communicated in sequence, and the electro-hydraulic control integrated high-pressure porous explosion-proof rapid regulating valve is characterized in that the main oil supply oil way is provided with a bypass energy storage oil way; a quick-opening electromagnetic valve, an energy accumulator and a pressure release valve are sequentially arranged on the energy storage oil way in the direction from the electromagnetic reversing valve to the oil tank. The energy storage oil way is introduced, so that the energy accumulator can quickly release stored energy when needed, the main valve is pushed to quickly act, and the operation period and the response time are remarkably shortened; functional parts of all the electro-hydraulic execution units are integrally installed on the bottom plate and integrally installed with the main valve, the integrated design simplifies the overall structure, the requirement for the installation space of the system is remarkably reduced, and the electro-hydraulic control valve is suitable for the application environment with the limited space.

Description

Technical Field

[0001] The utility model relates to the technical field of electro-hydraulic controlled valves, in particular to an electro-hydraulic controlled integrated high-pressure multi-hole explosion-proof fast regulating valve. Background Art

[0002] Electro-hydraulic control valves are widely used in various applications of hydraulic systems due to their high efficiency, safety and precise control capabilities, such as hydraulic machinery, engineering machinery, aerospace equipment, and hydraulic control systems in certain special industrial environments. The action speed of traditional hydraulic valves is limited by the structure of the actuator and the control system of the valve. In application scenarios that require fast response and action, it is difficult to meet the needs of rapid closing or opening, which affects the response speed and efficiency of the system. In addition, high-pressure control valves usually adopt a split design, that is, the hydraulic system and the valve body are installed separately. This design leads to high installation complexity and large floor space, which increases the assembly cost and maintenance difficulty of the system. Based on this, it is necessary to improve the existing electro-hydraulic control valves. Utility Model Content

[0003] In order to improve the response speed of an electro-hydraulic control valve, the utility model provides an electro-hydraulic integrated high-pressure multi-hole explosion-proof fast regulating valve.

[0004] The technical solution adopted by the utility model is as follows: an electro-hydraulic controlled integrated high-pressure multi-porous explosion-proof fast regulating valve, composed of an electro-hydraulic actuator unit and a main valve, the electro-hydraulic actuator unit includes an oil tank, a main oil supply oil circuit, an electromagnetic reversing valve, a control circuit and an actuator cylinder connected in sequence, and is characterized in that the main oil supply oil circuit is provided with a bypass energy storage oil circuit, and the energy storage oil circuit is provided with a quick-opening electromagnetic valve, an accumulator and a pressure relief valve in sequence along the direction from the electromagnetic reversing valve to the oil tank.

[0005] Preferably, a breathing valve and a sight glass are provided on the oil tank.

[0006] Preferably, the main oil supply line is provided with an oil suction filter, an oil pump and a first one-way valve.

[0007] Preferably, a two-way hydraulic lock and a switch throttle valve are sequentially arranged on the control circuit.

[0008] Preferably, the actuator cylinder is equipped with an interrogator as a control signal source for the electromagnetic reversing valve.

[0009] Preferably, a pressure gauge and a pressure transmitter are connected to the energy storage oil circuit.

[0010] Preferably, the main oil supply circuit is provided with a bypass manual oil circuit, and the manual oil circuit is provided with a manual pump and a second one-way valve.

[0011] Preferably, the main oil supply circuit is provided with a bypass overflow circuit, and the manual oil circuit is provided with an overflow valve.

[0012] Preferably, the components of the electro-hydraulic actuator unit are integrated and mounted on a base plate, and the base plate is installed integrally with the main valve.

[0013] The utility model has the following beneficial effects: by introducing an energy storage oil circuit, the accumulator can quickly release the stored energy when needed, driving the main valve to move quickly, significantly shortening the operation cycle and response time; all functional components of the electro-hydraulic actuator unit are integrated and installed on the base plate and installed as a whole with the main valve. The integrated design simplifies the overall structure and significantly reduces the installation space requirement of the system, which is suitable for application environments with limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The hydraulic principle diagram of the embodiment of the utility model.

[0015] Figure 2 It is a left side schematic diagram of an embodiment of the utility model.

[0016] Figure 3 This is a front view schematic diagram of an embodiment of the utility model.

[0017] Oil tank 1; main oil supply circuit 2; solenoid reversing valve 3; control circuit 4; actuator cylinder 5; energy storage circuit 6; quick-opening solenoid valve 7; accumulator 8; pressure relief valve 9; breathing valve 10; sight glass 11; oil suction filter 12; oil pump 13; first one-way valve 14; two-way hydraulic lock 15; switch throttle valve 16; interrogator 17; pressure gauge 18; pressure transmitter 19; manual oil circuit 20; manual pump 21; second one-way valve 22; overflow circuit 23; overflow valve 24; base plate 25; control box 26; main valve 27. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the embodiments and drawings.

[0019] In the embodiment, Figures 1 to 3 As shown, it is an electro-hydraulic integrated high-pressure multi-hole explosion-proof fast regulating valve, which is composed of an electro-hydraulic actuator unit and a main valve 27. The electro-hydraulic actuator unit includes an oil tank 1, a main oil supply oil circuit 2, an electromagnetic reversing valve 3, a control circuit 4 and an actuator oil cylinder 5 which are connected in sequence. It is characterized in that the main oil supply oil circuit 2 is provided with a bypass energy storage oil circuit 6, and the energy storage oil circuit 6 is provided with a quick-opening electromagnetic valve 7, an accumulator 8 and a pressure relief valve 9 in sequence along the direction from the electromagnetic reversing valve 3 to the oil tank 1. In this embodiment, by introducing the energy storage oil circuit 6, the accumulator 8 can quickly release the stored energy when needed, and promote the main valve 27 to act quickly, which significantly shortens the operation cycle and response time;

[0020] In the embodiment, Figures 1 to 3 As shown, the oil tank 1 is provided with a breathing valve 10 and a sight glass 11. The function of the breathing valve 10 is to allow air to freely enter and exit the oil tank 1 to adjust the internal gas pressure and prevent the oil tank from generating vacuum or overpressure, which can effectively protect the hydraulic system from the influence of oil fluctuations and ambient temperature changes. The sight glass 11 is installed on the oil tank 1 to observe the cleanliness and liquid level of the oil in real time. Through the sight glass 11, the operator can directly check whether the oil is clean and whether the oil level is normal, so as to timely discover and solve potential oil contamination or abnormal liquid level problems.

[0021] In the embodiment, Figures 1 to 3 As shown, the main oil supply circuit 2 is provided with an oil suction filter 12, an oil pump 13 and a first one-way valve 14. The oil suction filter 12 plays the role of filtering and cleaning the hydraulic oil, can effectively remove impurities, particles and pollutants in the oil, maintain the cleanliness of the oil, reduce the wear and damage of the internal components of the system, and extend the service life of the hydraulic system. The oil pump 13 is the core component of the hydraulic system, which is responsible for sucking the hydraulic oil from the oil tank 1 and delivering it to the various actuators of the system. The first one-way valve 14 plays an important role in preventing the backflow of the oil, especially when the system is shut down or the system pressure fluctuates, the first one-way valve 14 can prevent the hydraulic oil from backflowing to the oil pump and other components, effectively protecting the stability and safety of the system, and preventing damage or failure of the hydraulic components caused by backflow. The reasonable configuration and optimized design of these devices improve the energy efficiency performance of the hydraulic system, reduce energy consumption, optimize the flow and pressure control of the oil, and improve the overall operating efficiency and performance of the system.

[0022] In the embodiment, Figures 1 to 3 As shown, a two-way hydraulic lock 15 and a switch throttle valve 16 are sequentially arranged on the control loop 4. The two-way hydraulic lock 15 is used to prevent the actuator in the system from moving or sliding under unexpected conditions, and can lock the actuator cylinder 5 in a specific position to prevent accidental movement due to pressure fluctuations or external interference, thereby ensuring the safety and stability of the system. The switch throttle valve 16 is used to adjust the flow and speed of the fluid in the hydraulic system. By adjusting the opening of the valve to control the flow rate, the flow rate of the hydraulic oil in the system can be accurately adjusted, so that the system can maintain a stable operating state under different loads and working conditions, thereby improving the control accuracy and response speed of the system. The optimized control loop 4 design makes the system operation more convenient and intuitive, while reducing maintenance costs. The operator can achieve precise control of the hydraulic system through simple adjustment and monitoring, and quickly respond to changes in various working conditions, effectively improving the system's work efficiency and operational flexibility.

[0023] In the embodiment, Figures 1 to 3As shown, the actuator cylinder 5 is equipped with a transmitter 17 as a control signal source for the electromagnetic reversing valve 3. The transmitter 17 is a control signal conversion device, so that the operator can control the electromagnetic reversing valve 3 through a simple control console or an automation system.

[0024] In the embodiment, Figures 1 to 3 As shown, a pressure gauge 18 and a pressure transmitter 19 are connected to the energy storage oil circuit 6. By connecting the pressure gauge 18 and the pressure transmitter 19 to the energy storage oil circuit 6, real-time monitoring, precise control and intelligent management of the system pressure are achieved, thereby improving the safety, stability and operation efficiency of the system.

[0025] In the embodiment, Figures 1 to 3 As shown, the main oil supply circuit 2 is provided with a bypass manual oil circuit 20, and a manual pump 21 and a second one-way valve 22 are provided on the manual oil circuit 20. The manual oil circuit 20 allows the operator to manually operate the system in the event of electric control failure or emergency. Through the manual pump 21, the operator can manually inject hydraulic oil into the system to maintain or adjust the working pressure and flow of the system, and the second one-way valve 22 ensures the correct flow of hydraulic oil to prevent system pressure backflow or leakage. During equipment commissioning, maintenance or emergency repair, the manual oil circuit 20 provides a convenient method to control and adjust the operating status of the system. The operator can perform manual operation and maintenance of the system independently of the electro-hydraulic control system, thereby reducing system downtime and maintenance costs.

[0026] In the embodiment, Figures 1 to 3 As shown, the main oil supply circuit 2 is provided with a bypass overflow circuit 23, and the manual oil circuit 20 is provided with an overflow valve 24. The setting of the overflow circuit 23 can release excess hydraulic oil when the system pressure exceeds the preset value to prevent damage to the system or equipment due to overpressure. This safety measure ensures that the system can still maintain a stable and safe working state in unexpected situations.

[0027] In the embodiment, Figures 1 to 3 As shown, the components of the electro-hydraulic actuator unit are integrated and installed on the bottom plate 25, and the bottom plate 25 is installed integrally with the main valve 27. In this embodiment, all the functional components of the electro-hydraulic actuator unit are integrated and installed on the bottom plate 25, and are installed integrally with the main valve 27. The integrated design simplifies the overall structure and significantly reduces the installation space requirement of the system, which is suitable for application environments with limited space.

[0028] All functional components in the embodiment can select products with different explosion-proof levels according to actual conditions to meet the safety requirements of the valve usage scenario.

[0029] The working principle and operation description of this embodiment are as follows:

[0030] 1. Local control

[0031] Turn the conversion switch on the control box 26 to the "local" position.

[0032] 1.1. Open the valve

[0033] Press the "open" button switch on the control box 26, the motor runs to drive the oil pump 13 to generate a high-pressure oil source, and the high-pressure oil source enters the rodless chamber of the actuator cylinder 5. The actuator cylinder 5 will open the main valve 27 at a set speed until it automatically stops opening the valve at the fully open position.

[0034] 1.2 Close the valve

[0035] Press the "off" button switch on the control box 26, the motor runs to drive the oil pump 13 to generate a high-pressure oil source, the electromagnetic reversing valve 3 is energized at the same time, and the high-pressure oil source enters the rod chamber of the actuator cylinder 5. The actuator cylinder 5 will close the main valve 27 at a set speed until it reaches the fully closed position and automatically stops the valve closing action. When the valve is in the fully closed position, the valve closing is invalid.

[0036] 1.3 Stop

[0037] When the main valve 27 is in the process of opening and closing, the stop button is pressed, the oil pump 13 and the electromagnetic reversing valve 3 are both de-energized, and the main valve 27 stops at any intermediate position.

[0038] 2. Energy storage and pressure maintenance

[0039] When the main valve 27 is fully opened, the oil pump 13 continues to pressurize, and this pressure enters the accumulator 8 for storage. When the valve needs to be closed quickly, the solenoid reversing valve 3 and the oil pump 13 are not running, and the high-pressure oil source stored in the accumulator 8 enters the rodless chamber of the actuator cylinder 5, thereby realizing the rapid closure of the main valve 27.

[0040] 3. Adjustment control

[0041] Turn the switch on the control box 26 to the "adjustment" position, and the adjustment indicator light will light up. A 4-20mA analog adjustment command is issued in the central control room, and this command is connected to the local controller. The valve changes according to the change of the analog 4-20mA command, thereby realizing the valve adjustment function.

[0042] 4. Manual Operation

[0043] When the power supply fails, the main valve 27 can be opened and closed by shaking the manual pump 21. The manual function is mainly to debug the valve when there is no power, or to close the valve in an emergency under special circumstances.

[0044] Obviously, the above embodiments of the present invention are only examples for explaining the present invention, and are not intended to limit the implementation methods of the present invention. Other obvious changes or modifications derived from the essence of the present invention still fall within the protection scope of the present invention.

Claims

1. An electro-hydraulic integrated high-pressure multi-hole explosion-proof fast regulating valve, comprising an electro-hydraulic actuator unit and a main valve (27), wherein the electro-hydraulic actuator unit comprises an oil tank (1), a main oil supply oil circuit (2), an electromagnetic reversing valve (3), a control circuit (4) and an actuator oil cylinder (5) which are connected in sequence, characterized in that: The main oil supply circuit (2) is provided with a bypass energy storage circuit (6), and the energy storage circuit (6) is provided with a quick-opening electromagnetic valve (7), an accumulator (8) and a pressure relief valve (9) in sequence along the direction from the electromagnetic reversing valve (3) to the oil tank (1).

2. The electro-hydraulic integrated high-pressure porous explosion-proof rapid regulating valve according to claim 1 is characterized in that: The oil tank (1) is provided with a breathing valve (10) and a sight glass (11).

3. The electro-hydraulic integrated high-pressure porous explosion-proof rapid regulating valve according to claim 1 is characterized in that: An oil suction filter (12), an oil pump (13) and a first one-way valve (14) are provided on the main oil supply circuit (2).

4. The electro-hydraulic integrated high-pressure porous explosion-proof rapid regulating valve according to claim 1 is characterized in that: The control circuit (4) is provided with a bidirectional hydraulic lock (15) and a switch throttle valve (16) in sequence.

5. The electro-hydraulic integrated high-pressure porous explosion-proof rapid regulating valve according to claim 1 is characterized in that: The actuator cylinder (5) is equipped with an interrogator (17) as a control signal source for the electromagnetic reversing valve (3).

6. The electro-hydraulic integrated high-pressure porous explosion-proof rapid regulating valve according to claim 1 is characterized in that: The energy storage oil circuit (6) is connected to a pressure gauge (18) and a pressure transmitter (19).

7. The electro-hydraulic integrated high-pressure porous explosion-proof rapid regulating valve according to claim 1 is characterized in that: The main oil supply circuit (2) is provided with a bypass manual oil circuit (20), and the manual oil circuit (20) is provided with a manual pump (21) and a second one-way valve (22).

8. The electro-hydraulic integrated high-pressure porous explosion-proof rapid regulating valve according to claim 7 is characterized in that: The main oil supply circuit (2) is provided with a bypass overflow circuit (23), and the manual oil circuit (20) is provided with an overflow valve (24).

9. The electro-hydraulic integrated high-pressure porous explosion-proof rapid regulating valve according to claim 1 is characterized in that: The components of the electro-hydraulic actuator unit are integrated and mounted on a base plate (25), and the base plate (25) and the main valve (27) are mounted integrally.

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