Pneumatic valve assembly and pipeline system

Abstract

The invention relates to a pneumatic valve assembly and a pipeline system.The pneumatic valve assembly comprises a pneumatic valve, a valve switch feedback device and a flexible transmission shaft, the pneumatic valve comprises a valve body and an actuator, the valve body is used for being installed on a pipeline, and the actuator is connected with the valve body; the valve switch feedback device and the pneumatic valve are arranged at an interval and used for being installed on the fixing support, and the fixing support is fixed to the ground. The first end of the flexible transmission shaft is connected with a rotating shaft of the actuator, the second end of the flexible transmission shaft is connected with a feedback shaft of the valve switch feedback device, and the flexible transmission shaft is configured to enable the feedback shaft to synchronously rotate along with the rotating shaft. Due to the fact that the pneumatic valve and the valve switch feedback device are arranged at intervals, and the rotating shaft of the actuator is connected with the feedback shaft of the valve switch feedback device through the flexible transmission shaft, vibration generated by the pipeline is difficult to transmit to the valve switch feedback device. And the condition that the valve switch feedback device is influenced by pipeline vibration to generate faults or signal disappearance is avoided.

Description

Technical Field

[0001] The present disclosure relates to the field of valve switch technology, and in particular, to a pneumatic valve assembly and a pipeline system. Background Art

[0002] In many fields such as electricity and petrochemicals, pneumatic valves with valve switch feedback devices are widely used in production sites. The valve switch feedback device in the prior art is usually integrated on the pneumatic valve. When the pipeline vibrates, the vibration is transmitted to the valve switch feedback device, which can easily cause the valve switch feedback device terminal to loosen and the internal parts of the valve switch feedback device to be damaged, resulting in the valve switch status signal disappearing or error during the operation of the pipeline system, which brings hidden dangers to the stable operation of the system. Summary of the invention

[0003] The purpose of the present disclosure is to provide a pneumatic valve assembly and a pipeline system to at least partially solve the technical problems existing in the related art.

[0004] In order to achieve the above object, according to a first aspect of the present disclosure, a pneumatic valve assembly is provided, comprising: A pneumatic valve comprises a valve body and an actuator, wherein the valve body is used to be installed on a pipeline, and the actuator is connected to the valve body; A valve switch feedback device is spaced apart from the pneumatic valve and is used to be mounted on a fixed bracket, and the fixed bracket is fixed on the ground; A flexible transmission shaft, wherein the first end of the flexible transmission shaft is connected to the rotating shaft of the actuator, the second end of the flexible transmission shaft is connected to the feedback shaft of the valve switch feedback device, and the flexible transmission shaft is constructed so that the feedback shaft can rotate synchronously with the rotating shaft.

[0005] Optionally, the flexible transmission shaft includes a shaft body, a first connecting section and a second connecting section respectively located at two ends of the shaft body, the first connecting section is sleeved on the rotating shaft, and the second connecting section is sleeved on the feedback shaft.

[0006] Optionally, the pneumatic valve assembly further includes a first fixing member and a second fixing member, wherein the first fixing member is used to fix the first connecting section and the rotating shaft, and the second fixing member is used to fix the second connecting section and the feedback shaft.

[0007] Optionally, the first fixing member is a first clamp, and the second fixing member is a second clamp.

[0008] Optionally, the shaft body is configured as a solid shaft.

[0009] Optionally, the interior of the shaft body is hollow, and a plurality of reinforcing plates are arranged at intervals inside the shaft body, and the reinforcing plates extend in the radial direction of the shaft body.

[0010] Optionally, the flexible transmission shaft is configured as a carbon fiber shaft.

[0011] According to a second aspect of the present disclosure, there is provided a pipeline system, comprising a pipeline, a fixed bracket and the above-mentioned pneumatic valve assembly, wherein the fixed bracket is spaced apart from the pipeline, the fixed bracket is fixed on the ground, the valve body of the pneumatic valve assembly is mounted on the pipeline, and the valve switch feedback device of the pneumatic valve assembly is mounted on the fixed bracket.

[0012] Optionally, the fixed bracket includes a support rod and a mounting plate, the bottom of the support rod is fixed to the ground, the mounting plate is located on the upper part of the support rod, and the valve switch feedback device is detachably mounted on the mounting plate.

[0013] Optionally, the fixing bracket further includes a reinforcing rod, the mounting plate is arranged parallel to the horizontal plane, and the reinforcing rod is connected between the supporting rod and the mounting plate.

[0014] Through the above technical solution, the pneumatic valve is installed on the pipeline, and the valve switch feedback device is installed on the fixed bracket. Since the fixed bracket is installed on the ground, there is no vibration transmission between the fixed bracket and the pipeline, so the vibration generated by the pipeline itself is difficult to be transmitted to the fixed bracket, and the valve switch feedback device is spaced apart from the pneumatic valve and connected through a flexible transmission shaft, then the vibration transmitted by the pneumatic valve will be absorbed by the flexible transmission shaft, so the vibration generated by the pneumatic valve being affected by the pipeline vibration is difficult to be transmitted to the valve switch feedback device. In general, the vibration of the pipeline is difficult to affect the valve switch feedback device, thereby avoiding the valve switch feedback device being affected by the pipeline vibration and causing failure, thereby improving the reliability of the valve switch feedback device during use, reducing the failure of the pneumatic valve switch feedback device, avoiding the disappearance or error of the switch status signal of the pneumatic valve, and thus ensuring the stability of the system operation.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 is a schematic diagram of a pipeline system provided by an exemplary embodiment of the present disclosure.

[0017] Figure 2is a schematic diagram of a pneumatic valve assembly provided in accordance with an exemplary embodiment of the present disclosure.

[0018] Figure 3 is a schematic diagram of a valve switch feedback device provided by an exemplary embodiment of the present disclosure.

[0019] Figure 4 It is a schematic diagram of the internal structure of a valve switch feedback device provided in an exemplary embodiment of the present disclosure.

[0020] Figure 5 is a schematic diagram of a mounting bracket provided in accordance with an exemplary embodiment of the present disclosure.

[0021] Description of Reference Numerals 100. Pneumatic valve assembly, 10. Pneumatic valve, 11. Valve body, 12. Actuator, 121. Rotating shaft, 20. Valve switch feedback device, 21. Feedback shaft, 22. Cam, 23. Micro switch, 24. Signal output terminal, 25. Housing, 30. Flexible transmission shaft, 31. First connecting section, 32. Second connecting section, 33. Shaft body, 40. First fixing member, 50. Second fixing member, 200. Pipeline, 300. Fixed bracket, 310. Support rod, 320. Mounting plate, 330. Reinforcing rod, 340. Mounting base. DETAILED DESCRIPTION

[0022] The specific embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0023] In the description of the present disclosure, it is necessary to understand that the terms "upper", "lower", etc., indicating orientation or positional relationship, are defined based on the drawing directions shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, and a specific orientation structure and operation, and therefore cannot be understood as a limitation on the present disclosure.

[0024] In the present disclosure, it should be noted that the terms used, such as "first", "second", etc., are used to distinguish one element from another element, and do not have order and importance. In addition, in the description with reference to the drawings, the same number in different drawings represents the same element.

[0025] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "connected", and "installed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0026] According to the first aspect of the present disclosure, Figures 1 to 5 As shown, the present disclosure provides a pneumatic valve assembly 100, including a pneumatic valve 10, a valve switch feedback device 20 and a flexible transmission shaft 30, the pneumatic valve 10 includes a valve body 11 and an actuator 12, the valve body 11 is used to be installed on a pipeline 200, and the actuator 12 is connected to the valve body 11; the valve switch feedback device 20 is spaced apart from the pneumatic valve 10 and is used to be installed on a fixed bracket 300, and the fixed bracket 300 is fixed on the ground; the first end of the flexible transmission shaft 30 is connected to the rotating shaft 121 of the actuator 12, and the second end of the flexible transmission shaft 30 is connected to the feedback shaft 21 of the valve switch feedback device 20, and the flexible transmission shaft 30 is constructed to enable the feedback shaft 21 to rotate synchronously with the rotating shaft 121.

[0027] Through the above technical solution, since the valve switch feedback device 20 is spaced apart from the pneumatic valve 10, and the valve switch feedback device 20 is installed on the fixed bracket 300, and the fixed bracket 300 is installed on the ground, the vibration generated by the pipeline 200 itself is difficult to be transmitted to the fixed bracket 300 and the valve switch feedback device 20, and the valve switch feedback device 20 is spaced apart from the pneumatic valve 10 and connected through the flexible transmission shaft 30, even if the vibration generated by the pipeline 200 is transmitted to the pneumatic valve 10, it will be absorbed by the flexible transmission shaft 30, so the vibration generated by the pneumatic valve 10 affected by the vibration of the pipeline 200 is difficult to be transmitted to the valve switch feedback device 20. In general, the vibration of the pipeline 200 is difficult to affect the valve switch feedback device 20, thereby preventing the valve switch feedback device 20 from being affected by the vibration of the pipeline 200 and causing failure, thereby improving the reliability of the valve switch feedback device 20 when in use, reducing the situation of failure of the valve switch feedback device 20, and preventing the switch state signal of the pneumatic valve 10 from disappearing or making mistakes, thereby ensuring the stability of the operation of the system.

[0028] The actuator 12 is a component for controlling the operation of the pneumatic valve 10, and the two can be mechanically connected. The actuator 12 of the present disclosure can be an actuator that uses compressed air as a power source to operate the opening and closing of the pneumatic valve 10. Specifically, the rotating shaft 121 of the actuator 12 is connected to the valve core or valve stem of the valve body 11 through an interface. This interface is designed to allow the rotational motion generated by the actuator 12 to be transmitted to the pneumatic valve 10, so as to realize the opening and closing action of the pneumatic valve 10.

[0029] In addition, it can be understood that the function of the valve switch feedback device 20 is to feedback the opening and closing state of the pneumatic valve 10. The feedback shaft 21 of the valve switch feedback device 20 is connected to the rotating shaft 121 through the flexible transmission shaft 30. Since the valve switch feedback device 20 needs to timely judge the use status of the pneumatic valve 10 through the rotation of the feedback shaft 21, the feedback shaft 21 is driven to rotate synchronously when the rotating shaft 121 rotates, which can ensure that the feedback shaft 21 can synchronously follow the rotation of the rotating shaft 121, thereby timely transmitting the switch state of the feedback pneumatic valve 10 to the pneumatic valve 10.

[0030] In related technologies, such as Figure 4 As shown, a micro switch 23 connected to the signal output terminal 24 can be provided inside the valve switch feedback device 20, and a cam 22 that rotates synchronously with the feedback shaft 21 can be provided on the valve switch feedback device 20. After the cam 22 rotates, it can touch the micro switch 23 to form a signal output. In the present disclosure, when the rotating shaft 121 rotates, the feedback shaft 21 can be driven to rotate accordingly through the flexible transmission shaft 30, so that the cam 22 on the feedback shaft 21 can touch the micro switch 23 to form a signal output, thereby feeding back the state information of the pneumatic valve 10, and the state information can be information such as the open state, the closed state or the opening degree.

[0031] The connection between the flexible transmission shaft 30 and the rotating shaft 121 and the feedback shaft 21 can be a suitable method such as sleeve connection, clamping connection, etc., as long as the connection between the flexible transmission shaft 30 and the rotating shaft 121 and the connection between the flexible transmission shaft 30 and the feedback shaft 21 are stable and can transmit power. This disclosure does not limit this. Figure 2 As shown, the flexible transmission shaft 30 may include a shaft body 33, a first connecting section 31 and a second connecting section 32 respectively located at both ends of the shaft body 33, the first connecting section 31 is sleeved on the rotating shaft 121, and the second connecting section 32 is sleeved on the feedback shaft 21. In this way, the installation and removal between the flexible transmission shaft 30 and the rotating shaft 121 and the feedback shaft 21 can be facilitated.

[0032] Since the rotating shaft 121 needs to drive the feedback shaft 21 to rotate through the flexible transmission shaft 30, it is necessary to ensure the stability between the flexible transmission shaft 30, the rotating shaft 121 and the feedback shaft 21. Figure 1 and Figure 2As shown, the pneumatic valve assembly 100 may also include a first fixing member 40 and a second fixing member 50. The first fixing member 40 is used to fix the first connecting section 31 and the rotating shaft 121, which is beneficial to improving the stability of the connection between the first connecting section 31 and the rotating shaft 121. The second fixing member 50 is used to fix the second connecting section 32 and the feedback shaft 21, which is beneficial to improving the stability of the connection between the second connecting section 32 and the feedback shaft 21, thereby ensuring that the flexible transmission shaft 30 can transmit the rotation of the rotating shaft 121 to the feedback shaft 21, so as to ensure that the feedback shaft 21 can rotate synchronously with the rotating shaft 121.

[0033] Optionally, the first fixing member 40 may be a first clamp, and the second fixing member 50 may be a second clamp. Since the clamp can adjust the degree of tightness, the greater the degree of tightness of the clamp is set, the better the degree of tightness of the clamp connection position. For example, the first clamp presses the first connecting section 31 and the rotating shaft 121, so that the first connecting section 31 and the rotating shaft 121 can be stably connected, thereby preventing the connection position from axially disengaging or circumferentially rotating, and avoiding feedback error signals. Similarly, the second clamp is also the same.

[0034] Here, the clamp can be a suitable structure such as a bolt type clamp, a lock type clamp, a spring type clamp, etc.

[0035] Since the flexible transmission shaft 30 needs to transmit the rotation of the rotating shaft 121 to the feedback shaft 21 in real time, in order to avoid the flexible transmission shaft 30 itself twisting and causing the feedback shaft 21 and the rotating shaft 121 to rotate asynchronously, as an embodiment, the shaft body 33 of the flexible transmission shaft 30 can be set as a solid shaft to enhance the strength of the flexible transmission shaft 30 itself, so as to avoid the flexible transmission shaft 30 itself twisting and being unable to drive the feedback shaft 21 to rotate.

[0036] As another embodiment, the interior of the shaft body 33 can be set to be hollow, and a plurality of reinforcing plates are arranged at intervals inside the shaft body 33, and the reinforcing plates extend along the radial direction of the shaft body 33. This embodiment can also strengthen the strength of the flexible transmission shaft 30 itself, and prevent the torsion of the flexible transmission shaft 30 itself from causing the rotation of the feedback shaft 21 and the rotating shaft 121 to be asynchronous, thereby preventing the valve switch feedback device 20 from having erroneous feedback.

[0037] The material of the flexible transmission shaft 30 can be selected from suitable soft materials with certain strength, such as stainless steel, titanium alloy, copper alloy, etc., or a structure such as a woven mesh can be used to ensure the strength of the flexible transmission shaft 30 while maintaining flexibility to absorb vibrations, and the present disclosure does not limit this. For example, the flexible transmission shaft 30 can be set as a carbon fiber shaft, which can not only ensure the strength and flexibility of the flexible transmission shaft 30, but also be light in weight, high in stability, and easy to weave and install.

[0038] According to the second aspect of the present disclosure, Figure 1 As shown, a pipeline system is provided, including a pipeline 200, a fixed bracket 300 and the above-mentioned pneumatic valve assembly 100, the fixed bracket 300 is spaced apart from the pipeline 200, the fixed bracket 300 is fixed on the ground, the valve body 11 of the pneumatic valve assembly 100 is installed on the pipeline 200, and the valve switch feedback device 20 of the pneumatic valve assembly 100 is installed on the fixed bracket 300. Since the fixed bracket 300 is spaced apart from the pipeline 200, the valve switch feedback device 20 installed on the fixed bracket 300 is less affected by the vibration of the pipeline 200, thereby improving the stability of the valve switch feedback device 20 in use.

[0039] Alternatively, if Figure 1 As shown, the fixing bracket 300 may include a support rod 310 and a mounting plate 320. The bottom of the support rod 310 is fixed to the ground, which can provide a stable installation foundation for the fixing bracket 300, so that the valve switch feedback device 20 installed on the fixing bracket 300 can work under vibration-free conditions to avoid damage to the valve switch feedback device 20 caused by vibration. The mounting plate 320 is located on the upper part of the support rod 310, and the valve switch feedback device 20 is detachably mounted on the mounting plate 320, so that the installation and removal of the valve switch feedback device 20 can be facilitated.

[0040] In order to further ensure the stability of the fixing bracket 300 , a bottom plate for installing the fixing bracket 300 may be provided at the bottom of the fixing bracket 300 . The bottom plate has a large weight and is installed at the construction site.

[0041] In order to facilitate the installation of the valve switch feedback device 20 in factories or some places with relatively narrow spaces, a mounting base 340 can be set between the valve switch feedback device 20 and the mounting plate 320. The mounting base 340 can be connected to the mounting plate 320 by threaded parts (such as bolts). The position of the mounting base can be adjusted according to the on-site installation requirements to adjust the position of the valve switch feedback device 20 to meet the on-site installation requirements.

[0042] In some embodiments of the present disclosure, Figures 3 to 5 As shown, the valve switch feedback device 20 may include a housing 25 and structural parts (such as a micro switch 23, a cam 22, etc.) installed inside the housing. The housing 25 may be configured as two parts connected by threads to facilitate the installation of the structural parts. In addition, a clearance hole is provided on the housing 25 to allow the feedback shaft 21 to pass through the inside and outside of the housing 25. In order to facilitate the installation of the valve switch feedback device 20 and the fixing bracket 300, the housing 25 may be connected to the mounting base 340 by a threaded member.

[0043] In order to ensure the reliability of the installation between the valve switch feedback device 20 and the fixing, the fixing bracket 300 may further include a reinforcing rod 330, the mounting plate 320 is arranged parallel to the horizontal plane, and the reinforcing rod 330 is connected between the support rod 310 and the mounting plate 320. In this way, the installation operation of the operator can also be facilitated.

[0044] In practical applications, the present invention can install the fixed bracket 300 in an empty space near the pipeline system, and then install the valve switch feedback device 20 on the fixed bracket 300, so that the valve switch feedback device 20 can work under vibration-free conditions, and use the flexible transmission shaft 30 to connect the feedback shaft 21 of the valve switch feedback device 20 with the rotating shaft 121 of the actuator 12 of the pneumatic valve 10. By installing the valve switch feedback device 20 and the pneumatic valve 10 separately, the problem of abnormal feedback signal of the pneumatic valve 10 caused by pipeline vibration can be solved, and the working state of the components inside the valve switch feedback device 20 can be made more stable, thereby reducing equipment safety hazards and reducing equipment maintenance costs.

[0045] In the present disclosure, in order to increase the service life of the pipeline system, structures such as the outer shell 25 and the fixing bracket 300 can all be made of metal materials, and the outer surfaces can be sprayed with anti-corrosion paint.

[0046] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and the present disclosure will not further explain various possible combinations.

[0048] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A pneumatic valve assembly, characterized in that: include: A pneumatic valve comprises a valve body and an actuator, wherein the valve body is used to be installed on a pipeline, and the actuator is connected to the valve body; A valve switch feedback device is spaced apart from the pneumatic valve and is used to be mounted on a fixed bracket, and the fixed bracket is fixed on the ground; A flexible transmission shaft, wherein the first end of the flexible transmission shaft is connected to the rotating shaft of the actuator, the second end of the flexible transmission shaft is connected to the feedback shaft of the valve switch feedback device, and the flexible transmission shaft is constructed so that the feedback shaft can rotate synchronously with the rotating shaft.

2. The pneumatic valve assembly according to claim 1, characterized in that: The flexible transmission shaft comprises a shaft body, a first connecting section and a second connecting section respectively located at two ends of the shaft body, the first connecting section is sleeved on the rotating shaft, and the second connecting section is sleeved on the feedback shaft.

3. The pneumatic valve assembly according to claim 2, characterized in that: The pneumatic valve assembly further includes a first fixing member and a second fixing member, wherein the first fixing member is used to fix the first connecting section and the rotating shaft, and the second fixing member is used to fix the second connecting section and the feedback shaft.

4. The pneumatic valve assembly according to claim 3, characterized in that: The first fixing member is a first clamp, and the second fixing member is a second clamp.

5. The pneumatic valve assembly according to claim 2, characterized in that: The shaft body is configured as a solid shaft.

6. The pneumatic valve assembly according to claim 2, characterized in that: The shaft body is hollow inside, and a plurality of reinforcing plates are arranged inside the shaft body at intervals, and the reinforcing plates extend in a radial direction of the shaft body.

7. The pneumatic valve assembly according to any one of claims 1 to 6, characterized in that: The flexible transmission shaft is configured as a carbon fiber shaft.

8. A pipeline system, characterized in that: It comprises a pipeline, a fixed bracket and the pneumatic valve assembly described in any one of claims 1 to 7, wherein the fixed bracket is spaced apart from the pipeline, the fixed bracket is fixed on the ground, the valve body of the pneumatic valve assembly is installed on the pipeline, and the valve switch feedback device of the pneumatic valve assembly is installed on the fixed bracket.

9. The piping system according to claim 8, characterized in that The fixing bracket comprises a support rod and a mounting plate, the bottom of the support rod is fixed to the ground, the mounting plate is located on the upper part of the support rod, and the valve switch feedback device is detachably mounted on the mounting plate.

10. The piping system according to claim 9, characterized in that The fixing bracket also includes a reinforcing rod, the mounting plate is arranged parallel to the horizontal plane, and the reinforcing rod is connected between the supporting rod and the mounting plate.

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