Protection tool for natural gas pipeline installation

Abstract

The utility model discloses a protection tool for natural gas pipeline installation, which relates to the natural gas pipeline protection technology and comprises a plurality of sealing cylinders which are sleeved outside a pipeline body and are connected in sequence, air inlet frames communicated with the sealing cylinders are installed on the sealing cylinders, and air plug cylinders horizontally penetrate through the air inlet frames in a sliding mode. When the pipeline body leaks air, the air enters the air inlet frame and pushes the air plug column body to slide towards the outside of the air inlet frame; according to the protection tool for natural gas pipeline installation, the gas plug column body can be pushed to move only by overcoming the friction force between the gas plug column body and the gas inlet frame, in this way, when the gas plug column body moves by a certain distance, an alarm can be given, gas in a gas inlet cavity cannot be compressed, and the elasticity of a spring does not need to be overcome; the movement of the gas plug column body can be triggered in time, alarm processing can be carried out, timely maintenance is facilitated, and natural gas accumulation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas pipeline protection technology, specifically related to a kind of protection tool for natural gas pipeline installation. BACKGROUND

[0002] It is known that natural gas pipeline refers to the pipeline for transporting natural gas from mining site or processing plant to city gas distribution center or industrial enterprise user, after installation, natural gas pipeline has the risk of leakage from pipeline under long-time wind and sun or under the condition of earthquake, therefore, protection tool is usually installed on natural gas pipeline.

[0003] For example, the patent with the name of a kind of natural gas pipeline protection device, authorization announcement No.CN221570290U and authorization announcement date August 20, 2024, includes pipeline body, protection cylinder and support frame, pipeline body outside is equipped with protection cylinder, protection cylinder upper end is fixedly connected with support frame, protection cylinder upper end middle part passes through fixed cylinder, and fixed cylinder is fixedly connected with protection cylinder, fixed cylinder inside is equipped with inner cylinder, inner cylinder left and right sides are fixedly connected with limiting block, limiting block is slidingly connected in the inside of limiting groove, limiting groove is opened in the left and right sides of fixed cylinder, limiting block upper end is fixedly connected with spring, spring is arranged in the inside of limiting groove, the utility model can protect pipeline body in use process, and when pipeline body leaks, natural gas can be isolated in the protection cylinder of leaked section, and the gas leaked will push the top plate and inner cylinder to rise, when the top plate contacts the pressure sensor, warning can be carried out to remind staff.

[0004] The deficiency of the above-mentioned patent is that when natural gas leaks into the protection cylinder, natural gas needs to accumulate to a certain amount to overcome the elastic force of spring and drive the top plate to rise, that is, natural gas needs to leak for a period of time, and the top plate will contact the pressure sensor and alarm, which may cause maintenance not in time and cause natural gas accumulation. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a kind of protection tool for natural gas pipeline installation to solve the above-mentioned deficiencies in prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of protection tool for natural gas pipeline installation, including multiple sealing cylinders connected in sequence and sleeved on the outside of pipeline body, air inlet frame is installed on the sealing cylinder and communicated with it, air plug column body is slidingly penetrated on the air inlet frame;

[0008] When pipeline body leaks, gas enters the air inlet frame and pushes air plug column body to slide out of the air inlet frame.

[0009] The sealing cylinder is fixed with an annular sealing plate at the connection of the sealing cylinder.

[0010] The sealing cylinders are screwed together.

[0011] The sealing cylinder is provided with an air inlet on the upper side, the air inlet is fixed with an air inlet branch pipe, the lower end of the air inlet branch pipe is communicated with a circular air inlet part, and the diameter of the circular air inlet part is larger than that of the air inlet branch pipe.

[0012] The air inlet frame is slidably installed with a pushing plate, one end of the pushing plate close to the air plug column is formed with a pushing block, and the pushing block is attached to the air plug column.

[0013] The sealing cylinder is further provided with a displacement sensor and an alarm control system electrically connected with the displacement sensor.

[0014] The air inlet frame is slidably installed with a pushing plate, one end of the pushing plate close to the air plug column is formed with a pushing block, and the pushing block is attached to the air plug column.

[0015] The upper and lower ends of the pushing plate are both rollingly installed with a rolling column, the upper rolling column is abutted against the inner wall of the air inlet frame, and the lower rolling column is abutted against the horizontal bottom plate.

[0016] The air inlet frame is slidably installed with a pushing plate, one end of the pushing plate close to the air plug column is formed with a pushing block, and the pushing block is attached to the air plug column.

[0017] The air plug column is coated with a red warning coating on the outer side.

[0018] In the above technical solution, the natural gas pipeline installation protection tool can overcome the friction between the air plug column and the air inlet frame to move the air plug column, so that the air plug column can be moved and an alarm can be given after a distance, without compressing the gas in the air inlet cavity and without overcoming the spring force, so that the movement of the air plug column can be triggered in time and alarm processing can be performed, which is helpful for timely maintenance and avoids natural gas accumulation. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the technical scheme of the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments will be briefly introduced as follows. Obviously, the accompanying drawings in the following description only show some embodiments of the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0020] Figure 1 A perspective structural schematic view of the protective tool for natural gas pipeline installation is provided for an embodiment of the present application.

[0021] Figure 2 A sectional view of the protective tool for natural gas pipeline installation is provided for an embodiment of the present application.

[0022] Figure 3 A perspective structural schematic view of the protective tool for natural gas pipeline installation is provided for an embodiment of the present application. Figure 3 A partial enlarged view of X of the protective tool for natural gas pipeline installation.

[0023] Figure 4 A partial sectional view of the protective tool for natural gas pipeline installation is provided for another embodiment of the present application.

[0024] Explanation of reference signs:

[0025] 1, pipeline body; 2, sealing cylinder; 21, annular sealing plate; 22, gas inlet branch pipe; 23, circular gas inlet part; 3, gas inlet frame; 31, pushing plate; 32, pushing block; 33, horizontal bottom plate; 34, roller; 35, compression spring; 36, sealing block; 37, ball; 38, warning coating; 4, gas plug column. DETAILED DESCRIPTION

[0026] In order to make those skilled in the art better understand the technical scheme of the present application, the present application will be further described in detail with reference to the accompanying drawings.

[0027] As shown in Figures 1-4 the embodiment of the present application provides a protective tool for natural gas pipeline installation, which comprises a plurality of sealing cylinders 2 connected in sequence and sleeved on a pipeline body 1, a gas inlet frame 3 is installed on the sealing cylinder 2 and communicates with the sealing cylinder 2, and a gas plug column 4 is horizontally slidably penetrated on the gas inlet frame 3; when the pipeline body 1 leaks, the gas enters the gas inlet frame 3 and pushes the gas plug column 4 to slide out of the gas inlet frame 3.

[0028] Specifically in the embodiment, the use scene of the protection tool in the embodiment is a horizontally arranged pipeline body 1 or a slightly inclined pipeline body 1, the pipeline body 1 is used for conveying natural gas, each sealing cylinder 2 and the pipeline body 1 form an independent annular sealing space, the annular sealing space is defined as an air inlet cavity, when the pipeline body 1 leaks natural gas, the natural gas directly enters the air inlet cavity; the air inlet frame 3 is a square structure and is detachably fixed on the sealing cylinder 2; the air plug column 4 is a cylindrical structure and can only move in the horizontal direction, one section of the air plug column 4 is located in the air inlet frame 3 (defined as a first section), another section of the air plug column 4 is located in the external environment (defined as a second section), in the initial state, the length of the first section is approximately equal to the length of the second section, since the use scene of the embodiment is a horizontally arranged pipeline body 1 or a slightly inclined pipeline body 1, the air plug column 4 will not move outward in the case of no leakage; when the pipeline body 1 leaks, the gas enters the corresponding sealing cylinder 2, since only the air inlet frame 3 is connected to the sealing cylinder 2, the gas enters the air inlet frame 3 and pushes the air plug column 4 to move outward, in this way, the air plug column 4 can be pushed to move only by overcoming the friction between the air plug column 4 and the air inlet frame 3, and the first section of the air plug column 4 can be coated with a lubricant to further reduce the friction, in this way, the air plug column 4 can alarm after moving a distance, without compressing the gas in the air inlet cavity and overcoming the spring force, the movement of the air plug column 4 can be triggered in time and alarm processing can be performed, which is helpful for timely maintenance and avoids accumulation of natural gas.

[0029] In still another embodiment of the utility model, the sealing cylinder 2 and the connecting part of the sealing cylinder 2 are fixed with annular sealing plates 21 to form an independent annular sealing space between each sealing cylinder 2 and the pipeline body 1.

[0030] In still another embodiment of the utility model, the adjacent sealing cylinders 2 are screwed together, which is convenient for installation and disassembly.

[0031] In still another embodiment of the utility model, the upper side of the sealing cylinder 2 is provided with an air inlet, the air inlet is fixedly connected with an air inlet branch pipe 22, the upper end of the air inlet branch pipe 22 extends into the air inlet frame 3, the lower end of the air inlet branch pipe 22 is connected with a circular air inlet part 23, the diameter of the circular air inlet part 23 is greater than that of the air inlet branch pipe 22, the lower end of the circular air inlet part 23 is in an open state, which is convenient for the gas to enter the air inlet branch pipe 22 from the air inlet cavity and then enter the air inlet frame 3.

[0032] The utility model provides a further embodiment provided by the utility model discloses, sliding installation has the propulsion board 31 in the air intake frame 3, and the propulsion board 31 is located between the air plug cylinder 4 and air intake branch pipe 22 and limits the movement range of propulsion board 31, the propulsion board 31 is formed with the propulsion block 32 in the one end close to the air plug cylinder 4, the propulsion block 32 is pasted on the air plug cylinder 4, and the propulsion board 31 is sealed between the air intake frame 3, when gas enters the air intake frame 3, can push the propulsion board 31 movement to push the air plug cylinder 4 movement through the propulsion block 32, and the propulsion board 31 is designed to better utilize gas to enter the air intake frame 3 to push the air plug cylinder 4 movement, and when the air plug cylinder 4 drops, the air intake frame 3 is primarily sealed through the propulsion board 31.

[0033] The utility model provides a further embodiment provided by the utility model discloses, the displacement sensor and the alarm control system of electric connection with the displacement sensor are still installed on the sealing cylinder 2 upside, when the air plug cylinder 4 moves a distance, the displacement sensor passes displacement information to the alarm control system, and the air leakage alarm is given through the alarm control system.

[0034] The utility model provides a further embodiment provided by the utility model discloses, the horizontal bottom plate 33 is formed in the air intake frame 3 bottom bottom, the propulsion board 31 sliding installation is between the horizontal bottom plate 33 and the air intake frame 3 inner top wall, the upper and lower ends of the propulsion board 31 all are installed with the rolling cylinder 34, and the rolling cylinder 34 of upper side is butt joint on the air intake frame 3 inner top wall, and the rolling cylinder 34 of lower side is butt joint on the horizontal bottom plate 33, when the propulsion board 31 slides, the rolling cylinder 34 rolls, and the friction of the propulsion board 31 movement is reduced through the rolling cylinder 34, and the purpose that the horizontal bottom plate 33 is set lies in making the rolling cylinder 34 also can be primarily sealed in the movement process.

[0035] The utility model provides a further embodiment provided by the utility model discloses, the air plug cylinder 4 outside (that is, the second section) smears red warning coating 38, and when the initial state, that is, when there is no natural gas leakage, the red warning coating 38 can be observed to the patrol personnel, if the sealing cylinder 2 of not red warning coating appears, then the air plug cylinder 4 can have dropped, to provide another alarm mode.

[0036] The utility model provides a still another embodiment provided by the utility model, the air inlet frame 3 inside top wall is equipped with sealing block 36 through compression spring 35, sealing block 36 can only carry out the movement in vertical direction, sealing block 36 is close to the inner wall of one end of air inlet frame 3 close to gas plug cylinder 4, sealing block 36 is square plate structure, sealing block 36 lower end rolling installation has ball 37, initial state, compression spring 35 is compressed state and sealing block 36 lower end is pressed on gas plug cylinder 4, ball 37 is used for making the relative motion between sealing block 36 and gas plug cylinder 4 changes from sliding to rolling, reduces the influence of sealing block 36 to gas plug cylinder 4 movement, when gas plug cylinder 4 is completely dropped out air inlet frame 3, under the elasticity of compression spring 35, sealing block 36 downward movement carries out secondary sealing to the sliding joint of gas plug cylinder 4 and air inlet frame 3, prevents gas leakage.

[0037] Further, the upper end of the push block 32 is inclined, and the inclined surface near one end of the gas plug cylinder 4 is inclined downward; after the gas plug cylinder 4 is completely dropped out of the air inlet frame 3, the push block 32 can also extend to outside the air inlet frame 3 through the air inlet frame 3, therefore, when the sealing block 36 moves downward, it will contact the inclined surface to push the push block 32 and the push plate 31 to slide into the air inlet frame 3.

[0038] The above only describes certain exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled in the art, under the condition that without deviating from the spirit and scope of the utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A protection tool for natural gas pipeline installation, comprising a plurality of sealing cylinders connected in sequence and sleeved on the outer body of the pipeline, and an air inlet frame installed on the sealing cylinder and communicated with the sealing cylinder, characterized in that, The air inlet frame is horizontally slidably penetrated by the air plug column; When the pipeline body leaks, gas enters the air inlet frame and pushes the air plug column to slide out of the air inlet frame.

2. A protection tool for a natural gas pipeline installation according to claim 1, characterized in that, An annular sealing plate is fixed at the connection between the sealing cylinder and the sealing cylinder.

3. The protection tool for a natural gas pipeline installation according to claim 1, wherein The adjacent sealing cylinders are screwed together.

4. The protection tool for a natural gas pipeline installation according to claim 1, wherein An air inlet is formed on the upper side of the sealing cylinder, and an air inlet branch pipe is fixedly connected in the air inlet.

5. The protection tool for a natural gas pipeline installation according to claim 1, wherein A pushing plate is slidably installed in the air inlet frame, and a pushing block is formed at the end of the pushing plate close to the air plug column.

6. The protection tool for a natural gas pipeline installation according to claim 1, wherein A displacement sensor and an alarm control system electrically connected with the displacement sensor are further installed on the upper side of the sealing cylinder.

7. A protection tool for gas pipeline installation according to claim 5, wherein A horizontal bottom plate is formed at the bottom of the air inlet frame, and the pushing plate is slidably installed between the horizontal bottom plate and the inner top wall of the air inlet frame.

8. A protection tool for gas pipeline installation according to claim 7, wherein Rolling columns are installed at the upper and lower ends of the pushing plate, and the upper rolling column abuts against the inner top wall of the air inlet frame, and the lower rolling column abuts against the horizontal bottom plate.

9. A protection tool for gas pipeline installation according to claim 8, wherein A sealing block is installed on the inner top wall of the air inlet frame by a compression spring, the sealing block abuts against the inner wall of the end of the air inlet frame close to the air plug column, a rolling ball is installed at the lower end of the sealing block, and in the initial state, the compression spring is compressed and the lower end of the sealing block abuts against the air plug column.

10. The protection tool for a natural gas pipeline installation according to claim 1, wherein A red warning coating is applied to the outer side of the air plug column.

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