Linkage ball valve with pressure guide pipe

Abstract

The utility model provides a linkage ball valve with pressure guiding pipes, which comprises a ball valve body and a pair of pressure guiding pipes, the ball valve body is provided with a pair of valve seats, and the pair of pressure guiding pipes are communicated with the pair of valve seats in one-to-one correspondence. According to the ball valve with the pressure guide pipe, the pressure guide pipe is arranged in the ball valve body, and welding on a pipeline is not needed. The pressure guide pipe is directly connected inside the ball valve body and led out to the valve cavity through the valve seat of the valve body, so that the pressure at the front end and the rear end of the ball valve is measured, the risk of leakage at the welding point of the pressure guide pipe and a pipeline is reduced, and stable operation of the pipeline is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of linkage ball valve especially, a kind of self-contained pressure lead pipe type linkage ball valve. BACKGROUND

[0002] Gas-liquid linkage ball valve has been widely applied in oil pipeline field, especially on the main pipeline of oil pipeline, wherein, the pressure lead pipe of gas-liquid linkage ball valve plays an important role, responsible for testing pressure before and after gas-liquid linkage ball valve, and carries out the remote transmission of data, and pressure data can be monitored in real time on Scada (Supervisory Control And Data Acquisition, data acquisition and monitoring control system) system, and then determine whether the pressure before and after ball valve and pipeline is in the safe pressure range. However, in oil pipeline industry, the pressure lead pipe of gas-liquid linkage ball valve is often connected to the pipeline on both sides of valve body, and welding process is used, and the disadvantage of this is that leakage often occurs at the welding interface of pressure lead pipe to oil pipeline, which causes certain threat to the operation of pipeline and the life safety of surrounding personnel. SUMMARY

[0003] The utility model solves the technical problem in the prior art, and provides a self-contained pressure lead pipe type linkage ball valve.

[0004] The technical scheme for solving the above technical problem of the utility model is as follows: a self-contained pressure lead pipe type linkage ball valve, comprising: a ball valve body and a pair of pressure lead pipes, the ball valve body is provided with a pair of valve seats, and the pair of pressure lead pipes are in one-to-one correspondence with the pair of valve seats and are communicated with the pair of valve seats.

[0005] The beneficial effects of the technical scheme of the utility model are as follows: by designing the pressure lead pipe existing in the ball valve body itself, welding on the pipeline is not needed, that is, the self-contained pressure lead pipe type ball valve. The pressure lead pipe is directly connected to the inside of ball valve body, and is led out to valve cavity by valve seat, so that the pressure at both ends of ball valve is measured, the risk of leakage at the welding point of pressure lead pipe and pipeline is reduced, and the stable operation of pipeline is ensured.

[0006] Further, the ball valve body is a gas linkage ball valve body, an electric linkage ball valve body or a liquid linkage ball valve body.

[0007] The beneficial effects of the above further technical scheme are as follows: the self-contained pressure lead pipe type linkage ball valve is suitable for various types of linkage ball valves, and the applicability is improved.

[0008] Further, the pair of valve seats are installed at the front and rear ends of the ball valve body in one-to-one correspondence, the ball valve body is provided with a valve cavity, and the pair of valve seats are communicated with the valve cavity.

[0009] The beneficial effect of the further technical scheme is that the two pressure leading pipes before and after the valve are led into the valve cavity from the valve seat of the ball valve, thereby forming a new integrated pressure leading type ball valve with the whole valve.

[0010] Further, the pair of pressure leading pipes are communicated with the pair of valve seats through a casting process, or the pair of pressure leading pipes are both telescopic pipes, and the pair of pressure leading pipes are inserted into the pair of valve seats one by one.

[0011] The beneficial effect of the further technical scheme is that the pressure leading pipe is integrated with the ball valve, and the pressure leading pipe can be cast in the valve seat of the ball valve by using the casting method, without welding, so that the process is simple and the safety factor is high. Considering that the impurities in the pipeline may block the pressure leading pipe, in addition to the casting process for integrating the pressure leading pipe with the valve, the telescopic pressure leading pipe can be inserted into the valve body or pulled out for cleaning.

[0012] Further, a valve is installed on each of the pair of pressure leading pipes.

[0013] The beneficial effect of the further technical scheme is that the valve controls the fluid in the pressure leading pipe and prevents the pressure leading pipes before and after the ball valve from communicating with each other.

[0014] Further, an actuator is connected to each of the pair of pressure leading pipes.

[0015] The beneficial effect of the further technical scheme is that the actuator is used to transmit a hydraulic signal to control the opening and closing state of the ball valve.

[0016] Further, the actuator is connected to a remote wireless transmission device, and the remote wireless transmission device is remotely and wirelessly connected to a data acquisition and monitoring control system.

[0017] The beneficial effect of the further technical scheme is that the pressure leading pipe plays an important role in testing the pressure before and after the gas-liquid linkage ball valve and remotely transmitting data, so that the pressure data can be monitored in real time on the Scada system, and it is determined whether the pressure before and after the ball valve and the pipeline is within the safe pressure range.

[0018] Further, a ball is installed in the ball valve body, and the ball is connected to a valve rod.

[0019] The beneficial effect of the further technical scheme is that the ball and the valve rod are provided to facilitate the opening and closing of the self-contained pressure leading pipe type linkage ball valve.

[0020] Further, the bottom of the ball is rotatably connected with the ball valve body through a lower bearing, and the valve rod is rotatably connected with the ball valve body through an upper bearing.

[0021] The beneficial effects of the further technical solution are that the upper bearing and the lower bearing are arranged to facilitate the rotation of the ball and the valve rod relative to the ball valve body.

[0022] Further, a spring is installed in the ball valve body and abuts against the ball.

[0023] The beneficial effects of the further technical solution are that the spring is arranged to facilitate the resetting of the ball.

[0024] The advantages of the additional aspects of the present application will be partially given in the following description, some will become apparent from the following description, or will be understood by those skilled in the art through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The structure diagram of the self-pressure pipe type linkage ball valve provided by the present application is shown.

[0026] Reference signs: 1, ball valve body; 2, pressure pipe; 3, valve seat; 4, valve; 5, actuator; 6, ball; 7, valve rod. DETAILED DESCRIPTION

[0027] The principles and features of the present application will be described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application and are not used to limit the scope of the present application.

[0028] As shown in the drawings, Figure 1 The present application provides a self-pressure pipe type linkage ball valve, which comprises a ball valve body 1 and a pair of pressure pipes 2, the ball valve body 1 is provided with a pair of valve seats 3, and the pair of pressure pipes 2 are in one-to-one correspondence with the pair of valve seats 3.

[0029] The beneficial effects of the technical solution of the present application are that the pressure pipe is designed in the ball valve body itself, without welding on the pipeline, that is, the self-pressure pipe type ball valve. The pressure pipe is directly connected to the ball valve body, and the valve seat of the valve body leads to the valve cavity, so that the pressure at the front and rear ends of the ball valve is measured, the risk of leakage at the welding point of the pressure pipe and the pipeline is reduced, and the stable operation of the pipeline is ensured.

[0030] The two pressure pipes before and after the valve are led into the valve cavity of the ball valve from the valve seat of the ball valve, pressure detection is performed and transmitted to the Scada system of the oil transportation station, the pressure pipe is integrated with the gas-liquid linkage ball valve, welding on the pipeline is not required, the risk caused by welding of the pressure pipe on the pipeline is greatly reduced, the structure is simple, installation is convenient, the safety of pipeline transportation is improved, meanwhile, the use function of the gas-liquid linkage ball valve is not affected, and the original function of the pressure pipe, i.e., measuring the pressure of the pipeline before and after the ball valve, is maintained, which plays a crucial role in ensuring stable pipeline transportation.

[0031] As shown in Figure 1 Further, the ball valve body 1 is a gas linkage ball valve body, an electric linkage ball valve body or a liquid linkage ball valve body.

[0032] The beneficial effect of the above further technical solution is that the self-provided pressure pipe type linkage ball valve is suitable for various types of linkage ball valves, and the applicability is improved.

[0033] The gas-liquid linkage ball valve is composed of a valve body, a ball valve core, a sealing element, a piston and an actuator. The valve body adopts a spherical structure, the ball valve core (ball) is moved up and down to realize opening and closing of the valve. The sealing element is responsible for ensuring the sealing performance of the valve to avoid fluid leakage. The piston and the actuator are used to transmit the hydraulic signal and control the opening and closing state of the ball valve. In the gas-liquid linkage ball valve, the operation of the valve handle (valve rod) is transmitted through the hydraulic signal and fed back by the ball valve core. There is a spring between the ball valve core and the piston to ensure that there is always a certain contact force between the ball valve core and the piston. When the valve is opened or closed, the hydraulic signal is input from the operating rod and transmitted between the piston and the ball valve core. If the valve is to be opened, the gas source will push the piston through the hydraulic signal, the ball valve core will also move up and open the valve. When the valve is closed, the hydraulic signal disappears from the operating rod, the ball valve core is returned to the original position under the action of the valve spring, and the valve is closed.

[0034] As shown in Figure 1 Further, a pair of valve seats 3 are installed at the front and rear ends of the ball valve body 1 one by one, and the ball valve body 1 is provided with a valve cavity, and the valve seats 3 are in communication with the valve cavity.

[0035] The beneficial effect of the above further technical solution is that the two pressure pipes before and after the valve are led into the valve cavity of the ball valve from the valve seat of the ball valve, thereby forming a new integrated pressure pipe type ball valve with the entire valve. Pressure detection is performed and transmitted to the Scada system of the oil transportation station.

[0036] As shown in Figure 1As shown in the drawings, further, one pair of the pressure lead pipes 2 are in communication with one pair of the valve seats 3 through a casting process, or one pair of the pressure lead pipes 2 are both telescopic pipes, and one pair of the pressure lead pipes 2 are inserted into one pair of the valve seats 3 one by one.

[0037] The beneficial effect of the above further technical solution is that the pressure lead pipe is integrated with the ball valve, the pressure lead pipe can be cast in the valve seat of the ball valve through casting, and welding is not needed, so the process is simple and the safety factor is high. Considering that the impurities in the pipeline may block the pressure lead pipe, in addition to the casting process to integrate the pressure lead pipe with the valve, the telescopic pressure lead pipe can also be made, that is, it can be inserted into the valve body or pulled out for cleaning.

[0038] As shown in the drawings, further, a valve 4 is installed on one pair of the pressure lead pipes 2. Figure 1

[0039] The beneficial effect of the above further technical solution is that the valve controls the fluid in the pressure lead pipe and prevents the pressure lead pipes at the front and back of the ball valve from communicating with each other.

[0040] The valve can be a ball valve.

[0041] As shown in the drawings, further, one pair of the pressure lead pipes 2 are connected with an actuator 5. Figure 1 The beneficial effect of the above further technical solution is that the actuator is used to transmit a hydraulic signal and control the on-off state of the ball valve.

[0042] Further, the actuator 5 is connected with a remote wireless transmission device, and the remote wireless transmission device is remotely and wirelessly connected with a data acquisition and monitoring control system.

[0043] The beneficial effect of the above further technical solution is that the pressure lead pipe plays an important role, is responsible for testing the pressure before and after the gas-liquid linkage ball valve, and performs remote transmission of data, and the pressure data can be monitored in real time on the Scada system, and then it is determined whether the pressure before and after the ball valve and the pipeline is within the safe pressure range.

[0044] The acquisition method, transmission method, analysis method and control method of the remote wireless transmission device and the data acquisition and monitoring control system are all prior art, and those skilled in the art can easily think of how to program to achieve them according to actual needs, and will not be described here.

[0045] As shown in the drawings, further, a ball 6 is installed in the ball valve body 1, and the ball 6 is connected with a valve rod 7.

[0046] Figure 1

[0047] ​​​The beneficial effects of the further technical solutions are that the ball and the valve stem are arranged to facilitate the opening and closing of the self-introduced pressure pipe type linkage ball valve.

[0048] As shown in Figure 1 Further, the bottom of the ball 6 is rotatably connected to the ball valve body 1 through a lower bearing, and the valve stem 7 is rotatably connected to the ball valve body 1 through an upper bearing.

[0049] The beneficial effects of the further technical solutions are that the upper bearing and the lower bearing are arranged to facilitate the rotation of the ball and the valve stem relative to the ball valve body.

[0050] Further, a spring is installed in the ball valve body 1 and abuts against the ball 6.

[0051] The beneficial effects of the further technical solutions are that the spring is arranged to facilitate the resetting of the ball.

[0052] The ball valve of the gas-liquid linkage mechanism is composed of a valve stem, a valve body, a ball, upper and lower bearings, a valve seat, and a spring, etc. The improvement is to introduce the two pressure pipes before and after the valve into the valve cavity from the valve seat, so as to form a new type of integrated pressure introduction type ball valve (self-introduced pressure pipe type linkage ball valve) with the entire valve. After the improvement, the integrated pressure pipe ball valve only needs to install two pressure pipes in the valve body to avoid the risk of oil leakage caused by welding at the pipe.

[0053] Under the condition that the position of the pressure pipe is changed and other conditions remain unchanged, the original gas-liquid linkage ball valve pressure pipe exposed in the station is improved to solve the problems of deformation and leakage of the pressure pipe caused by ground subsidence and air corrosion. First, in view of the corrosion problem caused by the long-term exposure of the pressure pipe of the gas-liquid linkage ball valve in the air, the pressure pipe is introduced into the valve body to avoid direct contact with the air, create a near-vacuum condition, and isolate the air to avoid corrosion caused by external conditions. Second, in view of the deformation problem of the pressure pipe welding joint caused by ground subsidence, the pressure pipe is connected to the valve body inside the valve body, and the pressure pipe and the valve body of the ball valve are integrated by casting process to make the valve body and the pressure pipe closely connected and integrated to avoid the deformation of the pressure pipe and the pipe caused by ground subsidence.

[0054] The self-introduced pressure pipe type ball valve (self-introduced pressure pipe type linkage ball valve) belongs to safety improvement and is created to ensure the stable operation of the oil and gas station and prevent leakage at the pressure pipe and welding joint. It has the following advantages:

[0055] 1. The pressure pipe and the ball valve are integrated to prevent deformation of the pressure pipe caused by external factors such as ground subsidence and wind, which may cause leakage.

[0056] 2. The pressure pipe is integrated with the ball valve, the pressure pipe can be cast in the ball valve seat by casting method, welding is not needed, so the process is simple and the safety factor is high.

[0057] 3. After the pressure pipe is integrated with the valve, the pressure pipe is directly removed from the outside, and is actually led to the inside of the valve body, having good confidentiality.

[0058] 4. The manufacturing cost is low, the process is simple and easy to understand, and there is no high difficulty threshold.

[0059] The self-contained pressure pipe type ball valve (self-contained pressure pipe type linkage ball valve) has a simple and easy-to-understand internal structure, and plays a great role in improving the safety of the station.

[0060] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A self-pilot pipe-connected ball valve, characterized by, The utility model relates to a ball valve with a pair of pressure pipes, which comprises a ball valve body and a pair of pressure pipes. The ball valve body is a pneumatic, electric or hydraulic ball valve body.

2. A self-pilot pipe-type linked ball valve according to claim 1, characterized in that, The ball valve body is provided with a valve cavity, and the valve seats are in communication with the valve cavity.

3. A self-pilot pipe-type linked ball valve according to claim 1, characterized in that, The pressure pipes are provided with valves.

4. The self-pilot pipe-type linked ball valve according to claim 1, characterized in that, The pressure pipes are connected with actuators.

5. The self-pilot pipe-type linked ball valve according to claim 1, characterized in that, The actuators are connected with remote wireless transmission devices, which are connected with data acquisition and monitoring control systems.

6. A self-pilot pipe-type linked ball valve according to claim 5, characterized in that, The ball valve body is provided with a ball, which is connected with a valve rod.

7. A self-pilot pipe-type linked ball valve according to claim 1, characterized in that, The bottom of the ball is rotatably connected with the ball valve body through a lower bearing, and the valve rod is rotatably connected with the ball valve body through an upper bearing.

8. A self-pilot pipe-type linked ball valve according to claim 7, characterized in that, The ball valve body is provided with a spring, which is in abutment with the ball.

9. A self-pilot pipe-type linked ball valve according to claim 7, characterized in that, ​

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