Pipeline purging sponge ball passing indicator

Abstract

According to the pipeline purging sponge ball passing indicator, the upper end of a ball valve is connected with a shell, a sealing flange at the lower end of the ball valve is connected with a saddle seat, the top of the shell is connected with a guide flange, a tightness adjuster is arranged on one side of the shell, and a touch wheel extends into a pipeline and is connected with an indicating shaft; the indicating shaft sequentially penetrates through the saddle, the sealing flange, the ball valve, an inner cavity of the shell and the guide flange, the indicating shaft is of a structure with the thick middle and the two thin ends, a sealing groove is formed in the middle of the indicating shaft, the tightness adjuster is composed of a screw seat, a nut, a clamping shaft, an inner spring and an outer spring, the screw seat is connected with the shell through threads, and the position of the screw seat is adjusted through the nut. The control clamping shaft is matched with a sealing groove formed in the upper end of the indicating shaft for tightness. The ball passing indicator is compact in structure, convenient and efficient to operate and low in manufacturing cost, sensitivity is adjusted, the ball passing indicator is particularly suitable for pipeline pigging balls made of soft materials, and the problem that most of existing ball passing indicators need to be dismantled under the conveying stopping condition is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline cleaning and maintenance tools, in particular to a pipeline purging sponge ball passing ball indicator. Background Technique

[0002] During the service process of long-distance oil pipelines for transporting crude oil medium, many solid impurities in the crude oil medium will inevitably adhere to the inner wall of the pipeline. Over time, the situation will become more and more serious, and finally, due to excessive adhesion, the transportation of the medium in the pipeline will be affected. Therefore, the pigging and descaling equipment has become an important cleaning equipment for pipeline cleaning. During the pipeline cleaning process, in order to accurately indicate whether the pig passes through a certain predetermined position, it is necessary to install a passing ball indicator on the pipeline to assist the pipeline cleaning operation.

[0003] At present, in the cleaning and detection operations of oil pipelines in China, magnetic induction type passing ball indicators, mechanical passing ball indicators or flag type passing ball indicators are usually used. Most of the above indicators have a hinge structure inside, and a large driving force is required to generate a signal. Conventional rubber pigging balls, polymer pigging balls and metal pigging balls are relatively hard in texture, and the driving force generated during the cleaning process is relatively large, and the signal is easily collected by the above equipment. However, during the pipeline cleaning process, for pipelines with relatively small diameters, a large number of bends or complex orientations, only the softest sponge pigging balls can be selected, and the existing passing ball indicators have very unsatisfactory detection efficiency for such soft sponge pigging balls. Content of the Utility Model

[0004] The utility model provides a pipeline purging sponge ball passing ball indicator to solve the problems of relatively low passing ball detection success rate and complex passing ball detection process existing in the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A pipeline purging sponge ball passing ball indicator is composed of a guiding flange, a tension adjuster, a shell, an indicating shaft, a ball valve, a saddle and a touch wheel. The upper end of the ball valve is connected to the shell, and the sealing flange at the lower end of the ball valve is connected to the saddle. The top of the shell is connected to the guiding flange. The tension adjuster is arranged on one side of the shell. The touch wheel extends into the pipeline and is connected to the indicating shaft. The indicating shaft sequentially passes through the saddle, the sealing flange, the ball valve, the inner cavity of the shell and the guiding flange from bottom to top. The indicating shaft has a structure with a thick middle and thin ends. A sealing groove is arranged in the middle part of the indicating shaft. The tension adjuster is composed of a screw base, a nut, a clamping shaft, an inner spring and an outer spring. The screw base is connected to the shell by threads. By adjusting the position of the nut, the cooperation tightness between the clamping shaft and the sealing groove arranged at the upper end of the indicating shaft is controlled.

[0007] A rubber ring made of nitrile rubber is installed in the sealing groove of the above-mentioned indicating shaft.

[0008] The above-mentioned sealing flange, saddle support and pipeline are welded together in sequence.

[0009] The above-mentioned sealing flange and ball valve are connected by bolts and sealed by a sealing rubber ring.

[0010] A sealing rubber ring is arranged between the above-mentioned indicating shaft and the housing.

[0011] The above-mentioned indicating shaft and the trigger wheel are connected by a pin shaft. When the sponge ball passes through, the indicating shaft is dragged to move upward through rotational friction.

[0012] The upper end of the above-mentioned indicating shaft is a milled flat structure and is matched with the guiding flange to prevent the axial rotation of the indicating shaft and ensure that the trigger wheel at the bottom end of the indicating shaft is always parallel to the pipeline.

[0013] An indicating scale is arranged at the upper end of the above-mentioned indicating shaft.

[0014] The pipeline purging sponge ball passing ball indicator of the present utility model can be equipped with a threaded plug block and a blind plate. According to the engineering requirements, the valve remaining on the pipeline can be removed under pressure.

[0015] When the device of the present invention is used, first, a matching saddle support and sealing flange are configured according to the specifications of the target pipeline, then the valve is installed, the opening is made with the help of a hole opener, then the passing ball indicator is installed, the tightness of the indicator is adjusted, and the passing ball cleaning operation is started. After the operation is completed, first, the passing ball indicator is removed, secondly, the threaded plug block is installed, then the ball valve is removed, and finally the blind plate is installed.

[0016] The structure of the present utility model is simple and compact, the operation is convenient and efficient, not only the cost is low, but also the adjustment of the sensitivity makes it especially suitable for the pipeline pigging balls made of relatively soft materials, and this device solves the problem that most of the existing passing ball indicators need to remove the device under the condition of pipeline shutdown. Description of the Drawings

[0017] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0018] Figure 1 is the structural schematic diagram of the present utility model;

[0019] Figure 2 is the structural schematic diagram of the tightness adjuster of the present utility model;

[0020] Figure 3 is the structural schematic diagram of the indicating shaft of the present utility model;

[0021] Figure 4 is the plugging schematic diagram of the present utility model.

[0022] In the figure: 1 guiding flange, 2 tension adjuster, 3 housing, 4 indicating shaft, 5 ball valve, 6 sealing flange, 7 saddle, 8 touching wheel, 9 blind plate, 10 threaded plug block, 11 pipeline, 21 thread base, 22 nut, 23 clamping shaft, 24 inner spring and 25 outer spring. Detailed implementation mode

[0023] As Figure 1 , Figure 2 and Figure 3 shown, a pipeline purging sponge ball passing indicator, the touching wheel 8 extends into the interior of the pipeline 11, the touching wheel 8 is connected to the indicating shaft 4, and the indicating shaft 4 sequentially passes through the saddle 7, the sealing flange 6, the ball valve 5, the housing 3 and the guiding flange 1 at the top from bottom to top; the pipeline 11, the saddle 7 and the sealing flange 6 are sequentially connected by welding; the sealing flange 6 and the ball valve 5 are connected by bolts and sealed by a sealing rubber ring; a sealing rubber ring is arranged between the indicating shaft 4 and the housing 3; the bottom end of the housing 3 and the ball valve 5 are connected by bolts and sealed by a sealing rubber ring; a tension adjuster 2 is arranged on one side of the top end of the housing 3, and the top end of the housing 3 is connected to the guiding flange 1. The touching wheel 8 is arranged at the bottom end of the indicating shaft 4, and the indicating shaft 4 and the touching wheel 8 are connected by a pin shaft. The indicating shaft 4 is arranged in the inner cavity of the housing 3; the indicating shaft 4 has a structure with a thick middle and thin ends, a sealing groove is arranged in the middle part, and a nitrile rubber ring is installed in the sealing groove. The upper end of the indicating shaft 4 is a milled flat structure to cooperate with the guiding flange 1 to prevent the axial rotation of the indicating shaft 4, and the guiding flange 1 and the housing 3 are connected by screws. A convex groove structure is arranged at the upper end of the indicating shaft 4 to cooperate with the tension adjuster 2, and the tightness of the indicator can be adjusted according to the pipeline cleaning pressure.

[0024] The tension adjuster 2 is composed of a thread base 21, a nut 22, a clamping shaft 23, an inner spring 24 and an outer spring 25. The thread base 21 is connected to the housing 3 by a thread; by adjusting the position of the nut 22, the tightness of the cooperation between the clamping shaft 23 and the sealing groove arranged at the upper end of the indicating shaft 4 is controlled.

[0025] According to the specifications of the target pipeline 11, a matching saddle 7 and sealing flange 6 are configured, then the ball valve 5 is installed, and an opening is made with a hole opener. After that, the guiding flange 1, the tension adjuster 2, the housing 3 and the indicating shaft 4 are installed, the tightness of the tension adjuster 2 is adjusted, and the ball passing cleaning operation is started.

[0026] As Figure 4 shown, after the operation is completed, first close the ball valve 5, remove the guiding flange 1, the tension adjuster 2, the housing 3 and the indicating shaft 4; install the threaded plug block 10 through special equipment, then remove the ball valve 5, and finally install the blind plate 11.

[0027] During specific use, if the pipeline is in a state of shutdown without pressure, the ball valve of the whole device can be omitted. The scale on the indicating shaft 4 can also be modified to other types of indication forms.

Claims

1. Pipeline purging sponge ball passing ball indicator, characterized in that It is composed of a guiding flange, a tension adjuster, a housing, an indicating shaft, a ball valve, a saddle and a touch wheel. The upper end of the ball valve is connected to the housing, and the sealing flange at the lower end of the ball valve is connected to the saddle. The top of the housing is connected to the guiding flange. The tension adjuster is arranged on one side of the housing. The touch wheel extends into the pipeline and is connected to the indicating shaft. The indicating shaft sequentially passes through the saddle, the sealing flange, the ball valve, the inner cavity of the housing and the guiding flange from bottom to top. The indicating shaft has a structure with a thick middle and thin ends. A sealing groove is arranged in the middle part of the indicating shaft. The tension adjuster is composed of a screw base, a nut, a clamping shaft, an inner spring and an outer spring. The screw base is connected to the housing by threads. By adjusting the position of the nut, the tightness of the cooperation between the clamping shaft and the sealing groove arranged at the upper end of the indicating shaft is controlled.

2. The pipeline purging sponge ball passing ball indicator according to claim 1, characterized in that A rubber ring made of nitrile rubber is installed in the sealing groove of the indicating shaft.

3. The pipeline purging sponge ball passing ball indicator according to claim 1, characterized in that The sealing flange, the saddle and the pipeline are welded together in sequence.

4. The pipeline purging sponge ball passing ball indicator according to claim 1, characterized in that The sealing flange and the ball valve are connected by bolts and sealed by a sealing rubber ring.

5. The pipeline purging sponge ball passing ball indicator according to claim 1, characterized in that A sealing rubber ring is arranged between the indicating shaft and the housing.

6. The pipeline purging sponge ball passing ball indicator according to claim 1, characterized in that The indicating shaft and the touch wheel are connected by a pin shaft.

7. The pipeline purging sponge ball passing ball indicator according to claim 1, characterized in that The upper end of the indicating shaft is a milled flat structure for cooperation with the guiding flange.

8. The pipeline purging sponge ball passing ball indicator according to claim 1, characterized in that An indicating scale is arranged at the upper end of the indicating shaft.

Images