Adjustable electro-hydraulic butterfly valve

Abstract

The utility model provides an adjustable electro-hydraulic butterfly valve, and relates to the technical field of valves. The butterfly valve comprises a butterfly valve body, an adjusting valve rod is rotationally connected into the butterfly valve body, a blocking butterfly plate is fixedly connected to the outer surface of the adjusting valve rod, the blocking butterfly plate rotates in the butterfly valve body, and an executing mechanism is arranged above the butterfly valve body. Through the arrangement of the adjusting valve rod, the blocking butterfly plate, the executing mechanism, the monitoring cavity, the pressure sensor and other components and the cooperation relation between the integrated control module and the pressure sensor, the device can monitor the airtightness of the valve in real time, and the valve is closed in time after leakage occurs to the valve; and safety accidents caused by continuous leakage of media are avoided, workers can replace the sealing gasket conveniently, the situation that normal use of the device is affected due to abrasion after long-time use of the sealing gasket is prevented, and the working intensity of replacing the sealing gasket by the workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to an electro-hydraulic butterfly valve, in particular to an adjustable electro-hydraulic butterfly valve, belongs to valve technical field. BACKGROUND

[0002] The electro-hydraulic butterfly valve is a valve composed of an angular stroke electro-hydraulic intelligent actuator and a butterfly valve, has the characteristics of easy operation and intelligent control convenience, and has the advantages of high precision, high reliability, long service life and large load capacity of the hydraulic actuator, and can reduce the harm to operating personnel in dangerous environments.

[0003] According to the patent No. CN210715997U, an adjustable electro-hydraulic butterfly valve is disclosed, which comprises a valve body, a valve plate, a valve shaft sleeve, an upper valve shaft, a lower valve shaft, a rotation angle device shell, a rotating wheel, an eccentric connecting rod, a hydraulic telescopic device and a driving motor.

[0004] The above-mentioned scheme can improve the strength of the valve plate during implementation, and will not increase the fluid resistance in the pipeline, but the above-mentioned scheme is difficult to monitor the air tightness of the valve in real time during implementation, and if dangerous gas leakage occurs, it is easy to cause safety accidents; Therefore, we provide an adjustable electro-hydraulic butterfly valve to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of adjustable electro-hydraulic butterfly valves to solve the problem that the overall air tightness of valve is affected by the fact that sealing pad is easily worn after long time use in prior art, and it is difficult to replace sealing pad.

[0006] The utility model is realized by the following technical scheme: an adjustable electro-hydraulic butterfly valve, comprising a butterfly valve body, a regulating valve rod is rotatably connected inside the butterfly valve body, a blocking butterfly plate is fixedly connected to the outer surface of the regulating valve rod, the blocking butterfly plate rotates inside the butterfly valve body, an executing mechanism is arranged above the butterfly valve body, a threaded column is screwedly connected inside the butterfly valve body, a fixed disc is fixedly connected above the threaded column, a mounting column is fixedly installed on the top surface of the fixed disc by bolt, a monitoring chamber is fixedly connected inside the mounting column, and a pressure sensor is fixedly installed outside the monitoring chamber.

[0007] Preferably, an alarm is fixedly installed outside the pressure sensor, and a rubber sealing pad is movably installed inside the butterfly valve body, which improves the sealing performance of the device.

[0008] Preferably, the regulating valve rod penetrates through the rubber sealing pad, threaded column, fixed disc, mounting column and monitoring chamber and is rotatably connected thereto, and the regulating valve rod controls the rotation of the blocking butterfly plate.

[0009] Preferably, the actuator comprises a fixed shell, a regulating column is rotatably connected inside the fixed shell, the regulating valve rod penetrates through the fixed shell and is rotatably connected with the fixed shell, and the fixed shell provides stable support effect for other devices of the actuator.

[0010] Preferably, the top end of the regulating valve rod is fixedly connected with the regulating column, and a worm wheel is fixedly connected to the outer surface of the regulating column, and the regulating column serves to control rotation of the regulating valve rod.

[0011] Preferably, a servo motor is fixedly installed inside the fixed shell, and a worm is arranged inside the fixed shell and fixedly connected with the output rotating shaft of the servo motor, and the servo motor provides power for the flow rate inside the regulating valve.

[0012] Preferably, an integrated control module is fixedly installed inside the fixed shell, and the integrated control module is electrically connected with other electrical elements through wired or wireless technology, and the integrated control module serves to control overall operation of the device.

[0013] Preferably, a flow sensor is fixedly installed outside the butterfly valve body, and a probe of the flow sensor is located inside the butterfly valve body, and the flow sensor serves to monitor the flow rate of the medium inside the valve.

[0014] The utility model provides a kind of adjustable electro-hydraulic butterfly valve, it has the beneficial effects as follows:

[0015] The utility model discloses a regulating valve rod, an actuator, a monitoring chamber and a pressure sensor are arranged, the cooperation between the integrated control module and the pressure sensor enables the device to monitor the valve air tightness in real time, and the valve is closed in time after leakage, to avoid continuous leakage of medium causing safety accidents, and the sealing pad is replaced by staff, to prevent the sealing pad from affecting normal use of the device due to wear after long time use, reduce the working strength of staff replacing sealing pad.

[0016] The servo motor, worm, regulating column and worm wheel are arranged, the servo motor is started to drive the worm to rotate, the worm is rotated to drive the regulating column to rotate, so as to drive the regulating valve rod and the blocking butterfly plate to rotate inside the butterfly valve body, to realize automatic adjustment and control of the medium flow rate inside the valve, reduce the working strength of staff manually opening and closing the valve, and reduce the harm to personnel in dangerous environment. DRAWINGS

[0017] Figure 1 It is the whole structure schematic view of the utility model;

[0018] Figure 2The utility model discloses an actuator structure sectional view of the utility model;

[0019] Figure 3 The utility model discloses a part structure explosion map of the utility model;

[0020] Figure 4 The utility model discloses a part structure schematic view of the utility model;

[0021] Figure 5 The utility model discloses a monitoring chamber structure schematic view.

[0022]

Main component symbol explanation

[0023] 1, butterfly valve main part;2, regulating valve stem;3, blocking butterfly plate;

[0024] 4, actuator;401, fixed shell;402, adjusting column;403, worm wheel;404, servo motor;405, worm;406, integrated control module;

[0025] 5, threaded column;6, fixed disc;7, mounting column;8, monitoring chamber;9, pressure sensor;10, alarm;11, rubber sealing pad;12, flow sensor. Specific implementation

[0026] The utility model embodiment provides a kind of adjustable electro-hydraulic butterfly valve.

[0027] Please refer to Figure 1 And Figure 3 Including butterfly valve main part 1, the outside fixed mounting of butterfly valve main part 1 has flow sensor 12, the probe of flow sensor 12 is located inside butterfly valve main part 1, flow sensor 12 can be used to monitor the flow velocity of medium on the both sides of blocking butterfly plate 3, it is convenient for device to carry out automatic regulation accurate control to the flow rate in valve, the both ends of butterfly valve main part 1 are equipped with flange plate, it is convenient for staff to install device in the pipeline that needs to use, by the setting of device, it is helpful to complete the purpose of pipeline automatic management control, reduce the work intensity of staff, reduce the risk of pipeline accident, the electrical element involved in the present application is all prior art, the technical means that the relevant field personnel are familiar with, will not be too much elaboration to its installation mode and working principle.

[0028] The butterfly valve body 1 is internally connected to a regulating valve stem 2. The regulating valve stem 2 passes through the rubber sealing gasket 11, threaded column 5, fixed plate 6, mounting column 7 and monitoring chamber 8 and is rotatably connected to them. The regulating valve stem 2 is a through-rod structure. The internal structure has been heat-treated and has good comprehensive mechanical properties, corrosion resistance and scratch resistance. When the valve body is opened and closed, the regulating valve stem 2 only rotates and does not move up and down. The packing of the regulating valve stem 2 is not easily damaged and the seal is reliable. It is fixed to the blocking butterfly plate 3 with a tapered pin. The extended end is designed to prevent ejection to avoid fragments from breaking out when the regulating valve stem 2 breaks accidentally at the connection between the blocking butterfly plate 3.

[0029] A blocking butterfly plate 3 is fixedly connected to the outer surface of the regulating valve stem 2. The blocking butterfly plate 3 rotates inside the butterfly valve body 1. The blocking butterfly plate 3 adopts a streamlined design to reduce fluid resistance loss. The sealing surface is coated with tungsten carbide using supersonic spraying to improve the hardness of the sealing surface of the blocking butterfly plate 3 and extend the service life of the blocking butterfly plate 3. When the regulating valve stem 2 drives the blocking butterfly plate 3 to rotate inside the butterfly valve body 1, it can regulate the flow rate of the medium in the pipeline and facilitate the control of the speed of the medium transported in the pipeline.

[0030] Please see Figure 1 and Figure 2 An actuator 4 is provided above the butterfly valve body 1. The actuator 4 includes a fixed housing 401. An adjusting column 402 is rotatably connected inside the fixed housing 401. The adjusting valve stem 2 passes through the fixed housing 401 and is rotatably connected to the fixed housing 401. The top end of the adjusting valve stem 2 is fixedly connected to the adjusting column 402. The rotation of the adjusting column 402 can drive the adjusting valve stem 2 to rotate inside the butterfly valve body 1. The rotation of the adjusting valve stem 2 can drive the blocking butterfly plate 3 to rotate, thereby facilitating the device to control the flow rate of the medium inside the valve.

[0031] A worm gear 403 is fixedly connected to the outer surface of the regulating column 402. A servo motor 404 is fixedly installed inside the fixed housing 401. A worm 405 is provided inside the fixed housing 401. The worm 405 is fixedly connected to the output shaft of the servo motor 404. The worm 405 meshes with the worm gear 403. When the servo motor 404 starts and drives the worm 405 to rotate, the worm 405 can drive the regulating column 402 to rotate through the worm gear 403, thereby driving the regulating valve stem 2 and the blocking butterfly plate 3 to rotate, thus regulating the flow rate inside the valve. The servo motor 404 can control the opening and closing of the valve by forward and reverse rotation, thus completing the automatic control of the valve.

[0032] An integrated control module 406 is fixedly installed inside the fixed housing 401. The integrated control module 406 is electrically connected to other electrical components via wired or wireless technology. The integrated control module 406 integrates existing equipment such as power supply and electrical circuit control system, which can provide power for the operation of each electrical component of the device and control the operation of the electrical components through wired and wireless signals, thus providing energy support for the use of the valve.

[0033] Please see Figure 1 , Figure 3 and Figure 4 The butterfly valve body 1 has an internal threaded connection to a threaded post 5, and a fixed plate 6 is fixedly connected above the threaded post 5. A rubber sealing gasket 11 is movably installed inside the butterfly valve body 1. The rubber sealing gasket 11 has good flexibility and sealing performance, and is used to seal any gaps that may exist between the regulating valve stem 2 and the butterfly valve body 1, preventing the medium from flowing out through the gaps when flowing inside the valve. The rubber sealing gasket 11 will be worn after a long period of use, and the staff needs to replace the rubber sealing gasket 11 regularly to prevent valve leakage. When the rubber sealing gasket 11 needs to be replaced, the staff only needs to rotate the threaded post 5 to disengage the threaded post 5 from the butterfly valve body 1, and then remove the rubber sealing gasket 11 from the butterfly valve body 1 for replacement. After replacement, the threaded post 5 can be reinstalled into the butterfly valve body 1. The threaded post 5 can press against the rubber sealing gasket 11, so that the rubber sealing gasket 11 can achieve a sealing effect.

[0034] Please see Figure 1 , Figure 3 , Figure 4 and Figure 5 The top surface of the fixed plate 6 is fixedly mounted with a mounting column 7 by bolts. The monitoring chamber 8 is fixedly connected inside the mounting column 7. A pressure sensor 9 is fixedly mounted outside the monitoring chamber 8. An alarm 10 is fixedly mounted outside the pressure sensor 9. The monitoring chamber 8 is hollow and has good sealing between itself and the regulating valve stem 2. When there is a problem with the airtightness between the butterfly valve body 1 and the regulating valve stem 2, gas leakage will enter the monitoring chamber 8 through the gap, thereby increasing the pressure inside the monitoring chamber 8. The pressure sensor 9 can monitor the pressure inside the monitoring chamber 8 in real time. When the pressure inside the monitoring chamber 8 is detected to be rising, the pressure sensor 9 will send a signal to the integrated control module 406. After receiving the signal, the integrated control module 406 controls the blocking butterfly plate 3 to close. After the staff depressurizes the pipeline, the entire valve is inspected, and the rubber sealing gasket 11 is replaced through the threaded column 5. The alarm 10 is equipped with a buzzer alarm and a flashing light. When there is a problem with the valve, the pressure sensor 9 can control the alarm 10 to start, thereby alerting the staff to the location of the problem.

[0035] Working principle: First, the operator installs the device onto a suitable pipeline location using a flange. Then, the electrical components within the device are activated to monitor the valve's airtightness in real time. When a valve leaks, the flowing medium enters the monitoring chamber 8 through the gap, increasing the internal pressure. When the pressure sensor 9 detects that the internal pressure of the monitoring chamber 8 has risen to a certain level, it transmits an alarm signal to the integrated control module 406 and activates the alarm 10. The alarm 10 emits a buzzer warning sound and flashes a light to attract the operator's attention. When the integrated control module... After receiving the alarm signal, 406 will control the servo motor 404 to start. The servo motor 404 will drive the worm gear 403 to rotate through the worm 405. The rotation of the worm gear 403 will drive the adjusting column 402 to rotate. The rotation of the adjusting column 402 will drive the adjusting valve stem 2 to rotate, thereby causing the blocking butterfly plate 3 to rotate inside the butterfly valve body 1, closing the internal passage of the valve. Then, the operator will depressurize the pipeline. After the depressurization is completed, the rubber sealing gasket 11 will be replaced by rotating the threaded column 5. Finally, the threaded column 5 will be reset to complete the replacement of the valve rubber sealing gasket 11.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electro-hydraulic butterfly valve with adjustable, comprising a butterfly valve body (1), characterized in that: The inside of the butterfly valve body (1) is rotatably connected with an adjusting valve rod (2), the outer surface of the adjusting valve rod (2) is fixedly connected with a blocking butterfly plate (3), the blocking butterfly plate (3) is rotatable in the inside of the butterfly valve body (1), the upper portion of the butterfly valve body (1) is provided with an actuator (4), the inside of the butterfly valve body (1) is threadedly connected with a threaded column (5), the upper portion of the threaded column (5) is fixedly connected with a fixed disc (6), the top surface of the fixed disc (6) is fixedly installed with a mounting column (7) through bolts, the inside of the mounting column (7) is fixedly connected with a monitoring cavity (8), the outside of the monitoring cavity (8) is fixedly installed with a pressure sensor (9).

2. An electro-hydraulic butterfly valve according to claim 1, characterized in that: The outside of the pressure sensor (9) is fixedly installed with an alarm (10), the inside of the butterfly valve body (1) is movably installed with a rubber sealing gasket (11).

3. An electro-hydraulic butterfly valve according to claim 2, wherein: The adjusting valve rod (2) penetrates through the rubber sealing gasket (11), the threaded column (5), the fixed disc (6), the mounting column (7) and the monitoring cavity (8) and is rotatably connected therewith.

4. The adjustable electro-hydraulic butterfly valve of claim 1, wherein: The actuator (4) comprises a fixed shell (401), the inside of the fixed shell (401) is rotatably connected with an adjusting column (402), the adjusting valve rod (2) penetrates through the fixed shell (401) and is rotatably connected with the fixed shell (401).

5. An electro-hydraulic butterfly valve according to claim 4, wherein: The top end of the adjusting valve rod (2) is fixedly connected with the adjusting column (402), the outer surface of the adjusting column (402) is fixedly connected with a worm gear (403).

6. An electro-hydraulic butterfly valve according to claim 4, wherein: The inside of the fixed shell (401) is fixedly installed with a servo motor (404), the inside of the fixed shell (401) is provided with a worm (405), the worm (405) is fixedly connected with the output rotating shaft of the servo motor (404).

7. The adjustable electro-hydraulic butterfly valve of claim 4, wherein: The inside of the fixed shell (401) is fixedly installed with an integrated control module (406), the integrated control module (406) is electrically connected with other electrical elements through wired or wireless technology.

8. The adjustable electro-hydraulic butterfly valve of claim 1, wherein: The outside of the butterfly valve body (1) is fixedly installed with a flow sensor (12), the probe of the flow sensor (12) is located in the inside of the butterfly valve body (1).

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