Replacement structure of pressure sensor for petroleum pipeline safety management

Abstract

The utility model relates to the technical field of pressure sensors, in particular to a replacement structure of a pressure sensor for petroleum pipeline safety management, which comprises a sensor body, a cylindrical acquisition end arranged at the bottom of the sensor body, and a clamping block arranged on the outer wall of the middle of the acquisition end. A spherical valve cavity is formed in the mounting shell, a connecting flange communicated with the valve cavity is arranged on one side of the mounting shell, a mounting channel communicated with the mounting shell is formed in the top of the mounting shell, a locking block is arranged on the inner wall of the mounting channel, and a shaft hole communicated with the valve cavity is formed in the bottom of the mounting shell; the ball valve is arranged in the valve cavity in a matched mode, a right-angle channel corresponding to the connecting flange and the mounting channel is arranged in the ball valve, a sealing ring is arranged on the inner wall of the top of the right-angle channel in the circumferential direction, and a control shaft extending downwards through a shaft hole is arranged at the bottom of the ball valve. The corresponding relation between the clamping block and the locking block and the corresponding relation between the right-angle channel and the connecting flange are changed through the control shaft at the same time, the effect of unlocking the sensor body is achieved, and replacement is easy and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure sensor technical field, concretely relates to a kind of replacement structure of pressure sensor for petroleum pipeline safety management. BACKGROUND

[0002] Pipeline pressure sensor is the most commonly used pressure sensor in industrial practice, which is widely used in various industrial control environments, involving petroleum pipeline, water conservancy and hydropower, railway transportation, intelligent building, production automatic control, aerospace, military industry, petrochemical industry, oil well, electric power, ship, machine tool, hydraulic machinery and many other industries. Pressure sensor is a device or apparatus that can sense pressure signals and convert them into useful output electrical signals according to certain rules.

[0003] In order to ensure the safety of petroleum pipeline, the pressure sensor is usually welded on the petroleum pipeline through the connecting pipe. This installation method is not conducive to quick disassembly and repair or replacement when the pressure sensor is damaged. Moreover, the petroleum pipeline needs to be closed when disassembling the pressure sensor, which affects the transportation of petroleum. To solve at least one of the above problems, the present utility model is designed by the present utility model inventor. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of replacement structure of pressure sensor for petroleum pipeline safety management, and the corresponding relationship of lock block and clamping block is changed by spline to make sensor body rotate together, so as to achieve the effect of unlocking sensor body, so that the replacement of sensor body is more simple and fast.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a kind of replacement structure of pressure sensor for petroleum pipeline safety management, it includes: sensor body, the bottom of the sensor body is provided with a cylindrical collection end, a plurality of clamping blocks are arranged on the outer wall of the middle part of the collection end; installation shell, the inside of the installation shell is provided with a spherical valve cavity, and one side of the installation shell is provided with a connecting flange communicated with the valve cavity, the top of the installation shell is provided with an installation channel communicated with the installation shell, the inner wall of the installation channel is provided with a plurality of lock blocks matched with the clamping blocks, the bottom of the installation shell is provided with a shaft hole communicated with the valve cavity; ball valve, the ball valve is matched in the valve cavity, and a right-angle channel is arranged in the ball valve corresponding to the connecting flange and the installation channel, a sealing ring is arranged on the inner wall of the top of the right-angle channel, and a control shaft is arranged on the bottom of the ball valve and extends downward through the shaft hole.

[0006] Preferably, the collection end is spline matched with the top end of the ball valve.

[0007] Preferably, the bottom of the installation shell is provided with a threaded cover matched with the valve cavity, and the shaft hole penetrates the cover.

[0008] Preferably, the cover top is provided with a sealing bowl matched with the ball valve bottom.

[0009] Preferably, the control shaft bottom end is a hexagonal head.

[0010] Preferably, each of the lock blocks is provided with a pressing slope.

[0011] The utility model has the advantages that when the sensor body is replaced, the operator only needs to rotate the control shaft, rotates the ball valve, and in the rotating process of the ball valve, not only the channel in the direction of the connecting flange is closed, but also the sensor body is rotated together through the spline to change the corresponding relationship between the clamping block and the lock block, so that the sensor body is unlocked, and the replacement of the sensor body is simpler and faster. The cover not only facilitates the assembly and maintenance of the product, but also can adjust the rotating resistance of the ball valve through the tightness of the cover. The bottom end of the control shaft is a hexagonal head, which can be matched with a commonly used wrench, so that special tools are avoided, and the replacement of the sensor body is more convenient. The downward pressure is applied to the collection end during the installation of the sensor body, and the sealing ring and the collection end achieve better sealing effect. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below.

[0013] Figure 1 It is a structural schematic view of the sensor body of the utility model.

[0014] Figure 2 It is a sectional view of the installation shell structure of the utility model.

[0015] In the drawing: 1, sensor body; 2, collection end; 3, clamping block; 4, installation shell; 5, connecting flange; 6, installation channel; 7, lock block; 8, ball valve; 9, right-angle channel; 10, control shaft; 11, sealing ring; 12, spline; 13, cover; 14, sealing bowl; 15, hexagonal head; 16, pressing slope. DETAILED DESCRIPTION

[0016] The technical scheme of the utility model will be clearly and completely described below with reference to the drawings of the utility model. Obviously, the described embodiments are only some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0017] According to Figure 1 , Figure 2 As shown in FIG. 1, a pressure sensor replacement structure for oil pipeline safety management comprises a sensor body 1, a cylindrical collection end 2 is arranged at the bottom of the sensor body 1, a plurality of clamping blocks 3 are arranged on the outer wall of the middle part of the collection end 2 in a circumferential direction; an installation shell 4, a spherical valve cavity is arranged in the inside of the installation shell 4, a connecting flange 5 is arranged on one side of the installation shell 4 and communicates with the valve cavity, an installation channel 6 is arranged on the top of the installation shell 4 and communicates with the installation shell 4, a plurality of locking blocks 7 are arranged on the inner wall of the installation channel 6 and match the clamping blocks 3, an axle hole is arranged at the bottom of the installation shell 4 and communicates with the valve cavity; a ball valve 8 is arranged in the valve cavity and matches the connecting flange 5 and the installation channel 6, a right-angle channel 9 is arranged in the ball valve 8, a sealing ring 11 is arranged on the inner wall of the top of the right-angle channel 9 in a circumferential direction, and a control shaft 10 is arranged at the bottom of the ball valve 8 and extends downward through the axle hole. The collection end 2 matches a top end spline 12 of the ball valve 8.

[0018] Through the arrangement, the connecting flange 5 is connected with the pipeline and makes the connecting flange 5 communicate with the installation channel 6 through the right-angle channel 9, so as to detect the pressure in the pipeline by the sensor body 1. When the sensor body 1 needs to be replaced, the operator only needs to rotate the control shaft 10 to rotate the ball valve 8, and the right-angle channel 9 is dislocated with the connecting flange 5 in the rotating process of the ball valve 8, so that the channel in the direction of the connecting flange 5 is closed, and the sensor body 1 is also rotated through the spline 12 to change the corresponding relationship between the clamping blocks 3 and the locking blocks 7, so as to achieve the effect of unlocking the sensor body 1, and the replacement of the sensor body 1 is more simple and fast.

[0019] A threaded cover 13 is arranged at the bottom of the installation shell 4 and matches the valve cavity, and the axle hole penetrates the cover 13. A sealing bowl 14 is arranged on the top of the cover 13 and matches the bottom of the ball valve 8.

[0020] Through the arrangement, the cover 13 is not only convenient for the assembly and maintenance of the product, but also can adjust the rotating resistance of the ball valve 8 through the tightness of the cover 13. When the sealing bowl 14 is worn after long-term use, the gap between the ball valve 8 and the sealing bowl 14 can be eliminated by tightening the cover 13.

[0021] As preferred, the bottom end of the control shaft 10 is a hexagonal head 15, the size of which can be matched with a common wrench, thereby avoiding the need for special tools and making replacement of the sensor body 1 more convenient.

[0022] In addition, the bottom of each lock block is provided with a pressing slope 16, through which downward pressure can be applied to the collection end 2 during installation of the sensor body 1, thereby ensuring better sealing of the sealing ring 11 and the collection end 2.

[0023] The above is merely a specific implementation of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be encompassed within the scope of protection of the present application. Therefore, the scope of protection of the present application should be subject to the scope of protection of the claims.

Claims

1. A replacement structure of a pressure sensor for safety management of a petroleum pipeline, characterized by , comprising: Sensor body (1), the sensor body (1) bottom is equipped with cylindrical collection end (2), the collection end (2) middle part outer wall circumferential direction is equipped with multiple clamping blocks (3); Installation shell (4), the installation shell (4) inside is equipped with spherical valve cavity, and one side of the installation shell (4) is equipped with the connecting flange (5) that communicates with the valve cavity, the top of the installation shell (4) is equipped with the installation channel (6) that communicates with the installation shell (4), the installation channel (6) inner wall is equipped with multiple lock blocks (7) with the clamping block (3) cooperation, the bottom of the installation shell (4) is equipped with the shaft hole that communicates with the valve cavity; Ball valve (8), the ball valve (8) is fitted in the valve cavity, and the ball valve (8) inside corresponds the connecting flange (5) and the installation channel (6) is equipped with a right angle channel (9), the right angle channel (9) top inner wall circumferential direction is equipped with sealing ring (11), the bottom of the ball valve (8) is equipped with the control shaft (10) that extends downward through the shaft hole.

2. The replacement structure of the pressure sensor for the safety management of the oil pipeline according to claim 1, characterized in that: The collection end (2) is matched with the top spline (12) of the ball valve (8).

3. The replacement structure of the pressure sensor for the safety management of the oil pipeline according to claim 1, characterized in that: The bottom of the installation shell (4) corresponds the valve cavity and is equipped with the threaded cover (13) of cooperation, and the shaft hole penetrates the cover (13).

4. The replacement structure of the pressure sensor for the safety management of the oil pipeline according to claim 3, characterized in that: The top of the cover (13) is equipped with the sealing bowl (14) that is matched with the bottom of the ball valve (8).

5. The replacement structure of the pressure sensor for the safety management of the oil pipeline according to claim 1, characterized in that: The bottom end of the control shaft (10) is hexagonal head (15).

6. The replacement structure of the pressure sensor for the safety management of the oil pipeline according to claim 1, characterized in that: Each lock block (7) bottom is equipped with the pressing slope (16).

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