Self-operated regulating valve with feedback device

Abstract

The utility model provides a self-operated regulating valve with a feedback device, which comprises a valve body, a valve core, a push rod and a main body bracket, and the valve core is connected with one end of the push rod and is positioned in the valve body; a feedback device is connected to the main body support, the feedback device is connected with the main body support through a connecting support plate, the feedback device is connected with the push rod through a connecting piece, and the axial position state of the push rod is fed back through the feedback device. According to the utility model, the valve core is driven to move through the movement of the push rod, and the opening degree of the valve is adjusted through the movement of the valve core. The feedback device is connected with the push rod through the connecting piece and can detect and feed back the axial position state of the push rod in real time, the position state of the valve element at the moment can be obtained through the position state of the push rod, and valve position information of the valve at the moment can be obtained. The valve position information detected by the feedback device can be sent to the remote monitoring end, and the remote monitoring end can monitor and record the valve position data of the regulating valve in real time, so that the recording of control and operation data is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially relates to a self force type regulating valve with feedback device. BACKGROUND

[0002] Self force type regulating valve does not need to consume external energy (does not need to add power supply or gas source) when regulating valve position, utilizes the energy (pressure variation) of being regulated medium as power source, and introduces actuating mechanism to control push rod and valve core position to change flow area and then adjusts the pressure difference of both ends, thereby make the valve before or valve after pressure that needs to control stabilize at given value.

[0003] However, the existing self force type pressure regulating valve cannot detect and feedback the position state of push rod and valve core in real time when working, so that the remote monitoring end cannot know the valve position state of regulating valve in real time, which is inconvenient for recording valve control data. SUMMARY

[0004] The utility model discloses a self force type regulating valve with feedback device, which solves the problems in the prior art.

[0005] The utility model discloses a self force type regulating valve with feedback device, which solves the problems in the prior art.

[0006] Preferably, the main support includes an upper support body, a lower support body and a connecting column, the connecting column is arranged between the upper support body and the lower support body, a guide sleeve is arranged on the lower support body, and the push rod passes through the guide sleeve; the valve body is connected with the lower support body; a first spring positioning plate is arranged on the guide sleeve, a second spring positioning plate is arranged on the push rod, and a spring is arranged between the first spring positioning plate and the second spring positioning plate.

[0007] Preferably, a first long hole and a second long hole are arranged on the connecting piece, the connecting piece is connected with the push rod through a connecting screw, and the connecting screw passes through the first long hole on the connecting piece; the feedback device is a displacement sensor, and a measuring head on the displacement sensor is connected with the second long hole on the connecting piece.

[0008] Preferably, the connecting piece is in the shape of "T", and the first long hole and the second long hole are perpendicular.

[0009] As preferred, the connecting bracket plate is connected with the feedback device through fastening screws, the connecting bracket plate is provided with a hoop, the hoop is in "U" shape, the connecting bracket plate is provided with a through hole corresponding to the hoop, the two ends of the hoop pass through the through hole on the connecting bracket plate, and the two ends of the hoop are connected with fastening nuts; the connecting column on the main body bracket passes through the hoop.

[0010] As preferred, the connecting bracket plate is in "L" shape.

[0011] As preferred, the utility model further includes an actuator, one end of the push rod is connected with the actuator, and the actuator is fixedly connected with the upper bracket body of the main body bracket.

[0012] The utility model has the advantages of:

[0013] 1. In the utility model, the push rod is moved to drive the valve core to move, the opening of the valve is adjusted through the movement of the valve core. The feedback device is connected with the push rod through the connecting piece, the feedback device can detect and feedback the axial position state of the push rod in real time, the position state of the valve core at the moment can be known through the position state of the push rod, and the valve position information of the valve at the moment can be known. The valve position information detected by the feedback device can be sent to the remote monitoring end, the remote monitoring end can monitor and record the valve position data of the regulating valve in real time, so that the recording of control and operation data is realized. The operating state of the valve can be obtained by the remote operator in time, and the stability and safety of valve operation are greatly increased.

[0014] 2. The feedback device is fixedly installed on the connecting column of the main body bracket through the connecting bracket plate, the connecting bracket plate is connected with the connecting column through the hoop, and the connecting bracket plate is connected with the feedback device through the fastening screws. This connecting and installing mode facilitates the installation and dismounting of the feedback device. The feedback device is arranged outside the entire self-operated regulating valve, and once the feedback device fails, the feedback device can be conveniently maintained or replaced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic view of the utility model.

[0016] Fig. 2 It is a structural schematic view of the connecting piece.

[0017] Fig. 3 It is a structural schematic view of the feedback device.

[0018] In the diagram: 1. Valve body, 2. Valve core, 3-1. Lower support body, 3-2. Upper support body, 3-3. Connecting column, 3-4. Guide sleeve, 3-5. First spring positioning plate, 4. Push rod, 5. Second spring positioning plate, 6. Spring, 7. Actuator, 9. Feedback device, 9-1. Measuring head, 10. Connecting piece, 10-1. First elongated hole, 10-2. Second elongated hole, 11. Connecting screw, 12. Connecting bracket plate, 13. Fastening screw, 14. Hoop, 15. Fastening nut. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0020] like Figs. 1 to 3 As shown, a self-regulating valve with a feedback device includes a valve body 1, a valve core 2, a push rod 4, and a main support. The valve core 2 is connected to one end of the push rod 4 and is located in the valve body 1. A feedback device 9 is connected to the main support. The feedback device 9 is connected to the main support through a connecting bracket plate 12 and to the push rod 4 through a connecting piece 10. The feedback device 9 provides feedback on the axial position of the push rod 4.

[0021] The self-regulating valve with feedback device also includes an actuator 7. The end of the push rod 4 away from the valve core 2 is connected to the actuator 7. The actuator 7 is fixedly connected to the upper support body 3-2 of the main support.

[0022] In this invention, the movement of the push rod 4 drives the valve core 2 to move, thereby adjusting the valve opening. The feedback device 9 is connected to the push rod 4 via the connector 10. The feedback device 9 can detect and provide feedback on the axial position of the push rod 4 in real time. The position of the push rod 4 indicates the current position of the valve core 2 and the valve position information. The valve position information detected by the feedback device 9 can be sent to a remote monitoring terminal, which can monitor and record the valve position data in real time, thus enabling the recording of control and operational data. Remote operators can obtain the valve's operating status promptly, greatly increasing the valve's operational stability and safety.

[0023] The main support includes an upper support body 3-2, a lower support body 3-1, and a connecting column 3-3. The connecting column 3-3 is located between the upper support body 3-2 and the lower support body 3-1. A guide sleeve 3-4 is provided on the lower support body 3-1, and a push rod 4 passes through the guide sleeve 3-4. The valve body 1 is connected to the lower support body 3-1. A first spring positioning plate 3-5 is provided on the guide sleeve 3-4, and a second spring positioning plate 5 is provided on the push rod 4. A spring 6 is provided between the first spring positioning plate 3-5 and the second spring positioning plate 5.

[0024] The connector 10 has a first elongated hole 10-1 and a second elongated hole 10-2. The connector 10 is connected to the push rod 4 by a connecting screw 11, which passes through the first elongated hole 10-1 on the connector 10. The feedback device 9 is a displacement sensor, and the measuring head 9-1 on the displacement sensor is connected to the second elongated hole 10-2 on the connector 10. When the push rod 4 moves, the push rod 4 drives the connector 10 to move, and the connector 10 drives the measuring head 9-1 on the displacement sensor to move. By detecting the real-time displacement of the valve through the displacement sensor, the current position of the push rod 4 and the valve core 2 can be known.

[0025] In this embodiment, the connector 10 is T-shaped, and the first elongated hole 10-1 and the second elongated hole 10-2 are perpendicular.

[0026] Furthermore, the connecting bracket plate 12 and the feedback device 9 are connected by fastening screws 13. The connecting bracket plate 12 is provided with a U-shaped clamping ring 14. The connecting bracket plate 12 has through holes corresponding to the clamping ring 14, and both ends of the clamping ring 14 pass through the through holes on the connecting bracket plate 12. Fastening nuts 15 are connected to both ends of the clamping ring 14. The connecting column 3-3 on the main support passes through the clamping ring 14. The feedback device 9 is fixedly mounted on the connecting column 3-3 on the main support via the connecting bracket plate 12. The connecting bracket plate 12 and the connecting column 3-3 are connected by the clamping ring 14, and the connecting bracket plate 12 and the feedback device 9 are connected by fastening screws 13. This connection and installation method facilitates the installation and disassembly of the feedback device 9. Moreover, the feedback device 9 is located outside the entire self-regulating valve, allowing for convenient repair or replacement should a malfunction occur.

[0027] In this embodiment, the connecting bracket plate 12 is L-shaped.

[0028] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A self-operated regulating valve with a feedback device, characterized in that, It includes a valve body, a valve core, a push rod, and a main support. The valve core is connected to one end of the push rod and is located in the valve body. A feedback device is connected to the main support. The feedback device is connected to the main support through a connecting bracket plate and to the push rod through a connector. The feedback device provides feedback on the axial position of the push rod.

2. A self-regulating valve with a feedback device according to claim 1, characterized in that, The main support includes an upper support body, a lower support body, and a connecting column. The connecting column is located between the upper support body and the lower support body. A guide sleeve is provided on the lower support body, and the push rod passes through the guide sleeve. The valve body is connected to the lower support body. A first spring positioning plate is provided on the guide sleeve, and a second spring positioning plate is provided on the push rod. A spring is provided between the first spring positioning plate and the second spring positioning plate.

3. A self-regulating valve with a feedback device according to claim 2, characterized in that, The connector has a first elongated hole and a second elongated hole. The connector is connected to the push rod by a connecting screw, which passes through the first elongated hole on the connector. The feedback device is a displacement sensor, and the measuring head on the displacement sensor is connected to the second elongated hole on the connector.

4. A self-regulating valve with a feedback device according to claim 3, characterized in that, The connector is T-shaped, with the first elongated hole and the second elongated hole perpendicular to each other.

5. A self-regulating valve with a feedback device according to claim 2, characterized in that, The connecting bracket plate is connected to the feedback device by fastening screws. The connecting bracket plate is provided with a hoop, which is U-shaped. The connecting bracket plate is provided with a through hole corresponding to the hoop. Both ends of the hoop pass through the through hole of the connecting bracket plate, and fastening nuts are connected to both ends of the hoop. The connecting column on the main bracket passes through the hoop.

6. A self-regulating valve with a feedback device according to claim 5, characterized in that, The connecting bracket plate is L-shaped.

7. A self-regulating valve with a feedback device according to claim 2, characterized in that, It also includes an actuator, with the end of the push rod away from the valve core connected to the actuator, and the actuator being fixedly connected to the upper support body of the main support.

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