Natural gas pipeline valve protection device

Abstract

The utility model discloses a natural gas pipeline valve protection device which comprises a valve installed between two natural gas pipelines and a protection device body matched with the valve, and the protection device body comprises a first semicircular box with an opening in the top and a second semicircular box with an opening in the bottom. And the valve is positioned in the first semicircular box and the second semicircular box. According to the utility model, a series of structures are arranged and can be mounted on the outer side of the valve and form a totally-closed protection effect on the valve, so that the valve is not exposed, sand storm and rainwater are prevented from entering the valve to cause corrosion to the valve, the protection comprehensiveness is improved, and elastic safety buffering, force unloading and protection work can be conveniently carried out on the upper part when the phenomena such as falling objects occur; the phenomenon that hard vibration force is transmitted downwards is reduced, the anti-smashing protection safety is improved, convenient unlocking and upper opening in a simple pulling mode during follow-up internal operation or maintenance are facilitated, and follow-up internal operation and maintenance work are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of valve protection, in particular to a natural gas pipeline valve protection device. Background Art

[0002] During the natural gas transmission process, valves are installed on the natural gas pipelines. Valves are control components in the fluid transmission system and have functions such as shutoff, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves are easily corroded when exposed to the external environment for a long time, resulting in the valve being unable to rotate normally and losing its regulating ability.

[0003] In this regard, the Chinese utility model patent with the prior art announcement number CN214699495U discloses a natural gas pipeline valve protection device, including a semi-cylindrical shell-shaped protective shell, the left and right sides of the protective shell are semicircular surfaces, and a semicircular hole is opened in the center of the semicircular surface. A circular pipe clamp is installed in each semicircular hole on both sides, and is fixedly connected to the natural gas pipeline through the pipe clamps on both sides. The protective shell covers the top of the valve. When the valve needs to be adjusted, the nut on the connecting plate is loosened but not completely removed. The pipe clamp can be rotated around the natural gas pipeline. After the valve adjustment is completed, the pipe clamp is rotated back to its original position to cover the valve, and the nut is tightened again. This protective device is used for natural gas pipeline valves exposed in outdoor environments with rotation space. The valve body is covered in the protective cover to achieve the function of protecting the valve body.

[0004] The above-mentioned technology discloses a natural gas pipeline valve protection device, which protects the upper part of the valve by a protective shell cover directly above the valve, thereby reducing the risk of damage to the upper part of the valve by impact. However, the device still has the following problems when used:

[0005] 1. The method of simply using a protective shell cover to provide hard protection on the upper part cannot unload the force when an upper impact occurs due to falling objects, etc., and is prone to transmitting a large hard shock impact force downward, and the anti-smashing protection effect is not ideal; 2. It can only protect the upper half of the natural gas pipeline valve, and the lower half of the natural gas pipeline valve is still in an exposed state, which will still be corroded by wind, sand and rain. It cannot completely seal and protect the natural gas pipeline valve safely, and the protection is not comprehensive. In view of this, the present application proposes a natural gas pipeline valve protection device to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the present utility model is to provide a natural gas pipeline valve protection device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a natural gas pipeline valve protection device, comprising a valve installed between two natural gas pipelines and a protection device body matched with the valve, the protection device body comprising a first semicircular box with an opening at the top and a second semicircular box with an opening at the bottom, the valve being located within the first semicircular box and the second semicircular box, semicircular sealing rings movably sleeved on the outside of the corresponding natural gas pipelines being embedded and fixed on both side inner walls of the first and second semicircular boxes, the two semicircular sealing rings on the same side being in close contact with each other on their adjacent sides, the front and rear sides of the first and second semicircular boxes being both equipped with the same threaded fixing assembly; the two threaded fixing assemblies being used to splice and fix the first and second semicircular boxes to the outside of the natural gas pipeline to seal and protect the valve;

[0008] The top and upper right side of the second semicircular box are both set as openings and a semicircular sealing box with openings on the bottom and left side is rotatably installed. A card slot is opened on the left top of the semicircular sealing box, and an elastic card fixing component for card installation and locking is movably installed in the card slot. The second semicircular box is sleeved on the elastic card fixing component; the elastic card fixing component is used to lock and unlock the semicircular sealing box conveniently;

[0009] A buffer shield assembly for preventing falling objects is installed on the top of the semicircular sealing box; the buffer shield assembly is used to shield accidentally falling objects from the top and to buffer and unload the force when impacted by falling objects, thereby realizing upper safety buffer shielding.

[0010] Preferably, the threaded fixing assembly includes two fixing sleeves, the front and rear sides of the first semicircular box and the front and rear sides of the second semicircular box are respectively fixedly connected to the corresponding fixing sleeves, the movable sleeves in the two fixing sleeves on the same side are provided with the same fixing bolt, and a nut is threadedly sleeved on the fixing bolt, and the top of the nut is tightly contacted with the bottom of the corresponding fixing sleeve located below.

[0011] Preferably, the elastic fixing assembly includes an L-shaped clamping rod movably mounted in the clamping slot, a T-shaped guide rod is fixedly connected to the left inner wall of the L-shaped clamping rod, the second semicircular box is slidably sleeved on the L-shaped clamping rod and the T-shaped guide rod, a first spring is fixedly connected between the right inner wall of the T-shaped guide rod and the left inner wall of the second semicircular box, the first spring is movably sleeved on the T-shaped guide rod, and a pull ring is fixedly connected to the left side of the L-shaped clamping rod.

[0012] Preferably, the buffer guard assembly includes an arc-shaped baffle arranged above the semicircular sealing box, the bottom of the arc-shaped baffle is rectangular and fixedly connected to six T-shaped guide shafts, the semicircular sealing box is slidably sleeved on the six T-shaped guide shafts, and six buffer springs are fixedly connected between the top of the semicircular sealing box and the bottom of the arc-shaped baffle, and the buffer springs are movably sleeved on the corresponding T-shaped guide shafts.

[0013] Preferably, a same hinge is fixedly installed between the right bottom of the semicircular sealed box and the right side of the second semicircular box, and the semicircular sealed box is rotatably connected to the second semicircular box through the hinge.

[0014] Preferably, a first sealing strip is bonded and fixed to the contact position between the semicircular sealing box and the second semicircular box, and the first sealing strip is in tight contact with the second semicircular box.

[0015] Preferably, a second sealing strip is bonded and fixed to the contact position between the bottom of the second semicircular box and the first semicircular box, and the second sealing strip is in tight contact with the top of the first semicircular box.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The first semicircular box, the second semicircular box, the semicircular sealing ring and the threaded fixing assembly can be installed on the outside of the valve to form a fully enclosed protection effect. The enclosed protection prevents the valve from being exposed, preventing the entry of wind, sand and rain from causing corrosion, and improving comprehensive protection.

[0018] 2. The buffer guard assembly and the semicircular sealing box cooperate to provide elastic and safe buffering and unloading protection at the top in the event of falling objects, thereby reducing the transmission of hard shock force downwards, thereby reducing the risk of damage caused by falling objects and improving anti-smashing protection safety;

[0019] 3. Through the cooperation of the semicircular sealing box, the second semicircular box, the card slot and the elastic fixing component, it can be easily unlocked and opened to the upper part by simply pulling during subsequent internal operation or maintenance to remove the upper obstruction. The operation is simple and convenient for subsequent internal operation and maintenance.

[0020] The utility model is provided with a series of structures, which can be installed on the outside of the valve to form a fully enclosed protection effect for the valve, so that the valve is not exposed, avoiding the corrosion caused by wind, sand and rain water, improving the comprehensiveness of protection, and facilitating elastic safety buffering and force unloading protection work on the upper part when objects fall, reducing the phenomenon of hard shock force being transmitted downward, improving the safety of anti-smashing protection, and facilitating the subsequent unlocking and opening of the upper part by simply pulling during internal operation or maintenance, which is convenient for subsequent internal operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a natural gas pipeline valve protection device proposed by the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the right view structure;

[0023] Figure 3 This is a schematic diagram of the main cross-sectional structure of a natural gas pipeline valve protection device proposed by the utility model;

[0024] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A in FIG.

[0025] In the figure: 1. valve; 101. natural gas pipeline; 2. first semicircular box; 201. second semicircular box; 202. semicircular sealing ring; 3. fixing sleeve; 301. fixing bolt; 302. nut; 4. semicircular sealing box; 401. first sealing strip; 5. arc-shaped baffle; 501. T-shaped guide shaft; 502. buffer spring; 6. slot; 601. L-shaped clamping rod; 602. T-shaped guide rod; 603. first spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figures 1 to 4 As shown, a natural gas pipeline valve protection device proposed in this embodiment includes a valve 1 installed between two natural gas pipelines 101 and a protection device body matched with the valve 1. The protection device body includes a first semicircular box 2 with an opening at the top and a second semicircular box 201 with an opening at the bottom. The valve 1 is located in the first semicircular box 2 and the second semicircular box 201. Semicircular sealing rings 202 that are movably sleeved on the outside of the corresponding natural gas pipeline 101 are fixedly embedded on the inner walls of both sides of the first semicircular box 2 and the second semicircular box 201. Semicircular embedding holes are opened on the inner walls of both sides of the first semicircular box 2 and the second semicircular box 201. The sides of the two semicircular embedding holes opposite to each other are both adjacent. It is set to be open, and the inner wall of the semicircular embedding hole is bonded and fixed to the outer side of the corresponding semicircular sealing ring 202. The two semicircular sealing rings 202 on the same side are tightly squeezed and contacted with each other. The front and rear sides of the first semicircular box 2 and the second semicircular box 201 are both installed with the same threaded fixing component. The bottom of the second semicircular box 201 is bonded and fixed with a second sealing strip at the contact position with the first semicircular box 2. The second sealing strip is tightly contacted with the top of the first semicircular box 2, which plays a role of active sealing between the second semicircular box 201 and the first semicircular box 2; the two threaded fixing components are used to splice and fix the first semicircular box 2 and the second semicircular box 201 to the outside of the natural gas pipeline 101 to seal and protect the valve 1;

[0028] The top and right upper part of the second semicircular box 201 are both set as openings and are rotatably installed with a semicircular sealing box 4 with both bottom and left openings, wherein the same hinge is fixedly installed between the right bottom of the semicircular sealing box 4 and the right side of the second semicircular box 201, and the semicircular sealing box 4 is rotatably connected to the second semicircular box 201 through the hinge, which plays the effect of rotatable installation of the semicircular sealing box 4. A card slot 6 is provided on the left top of the semicircular sealing box 4, and an elastic card fixing component for card installation and locking is movably installed in the card slot 6. The second semicircular box 201 is sleeved on the elastic card fixing component, and the contact position between the semicircular sealing box 4 and the second semicircular box 201 is bonded and fixed with a first sealing strip 401, and the first sealing strip 401 is squeezed and contacted with the second semicircular box 201, which plays the effect of active sealing between the semicircular sealing box 4 and the second semicircular box 201; the elastic card fixing component is used to fix and easily unlock the semicircular sealing box 4;

[0029] A buffer shield assembly for preventing falling objects is installed on the top of the semicircular sealing box 4; the buffer shield assembly is used to shield the upper part from unexpected falling objects and to buffer and unload the force when impacted by falling objects, thereby realizing upper safety buffer shielding.

[0030] Specifically, the threaded fixing assembly includes two fixing sleeves 3. The front and rear sides of the first semicircular box 2 and the front and rear sides of the second semicircular box 201 are fixedly connected to the corresponding fixing sleeves 3 respectively. The two fixing sleeves 3 on the same side are provided with a same fixing bolt 301. The fixing bolt 301 is provided with a nut 302 on the threaded sleeve. The top of the nut 302 is tightly contacted with the bottom of the corresponding fixing sleeve 3 located below. The provided fixing sleeve 3, fixing bolt 301 and nut 302 cooperate with each other. By docking the second semicircular box 201 and the first semicircular box 2, the two natural gas pipelines 10 are connected. 1, pass the bottom end of the fixing bolt 301 through the corresponding two fixing sleeves 3, and then tighten the nut 302 on the corresponding fixing bolt 301 with a tool to fix the corresponding two fixing sleeves 3, thereby further driving the second semicircular box 201 and the first semicircular box 2 to press the four semicircular sealing rings 202 on the outside of the two natural gas pipelines 101, so as to fix the spliced ​​second semicircular box 201 and the first semicircular box 2 on the outside of the two natural gas pipelines 101, and use the fixed first semicircular box 2 and the second semicircular box 201 to seal the valve 1 and protect it from contamination.

[0031] Furthermore, the elastic clamping assembly includes an L-shaped clamping rod 601 movably mounted in the clamping slot 6, and a T-shaped guide rod 602 is fixedly connected to the left inner wall of the L-shaped clamping rod 601, and the second semicircular box 201 is slidably sleeved on the L-shaped clamping rod 601 and the T-shaped guide rod 602, wherein a rectangular guide hole and a transverse guide hole are opened on the left inner wall of the second semicircular box 201, and the inner wall of the rectangular guide hole and the inner wall of the transverse guide hole are in sliding contact with the outer sides of the L-shaped clamping rod 601 and the T-shaped guide rod 602 respectively, so as to allow the L-shaped clamping rod 601 and the T-shaped guide rod 602 to pass through and guide their horizontal sliding. A first spring 603 is fixedly connected between the right inner wall of the T-shaped guide rod 602 and the left inner wall of the second semicircular box 201, and the first spring 60 The movable sleeve is arranged on the T-shaped guide rod 602, and a pull ring is fixedly connected to the left side of the L-shaped clamping rod 601; the L-shaped clamping rod 601, the T-shaped guide rod 602, the first spring 603 and the pull ring cooperate with each other, and the L-shaped clamping rod 601 is clamped and locked with the clamping groove 6 to realize the clamping and locking of the semicircular sealing box 4. The semicircular sealing box 4 is used to perform sealing work at the upper part. When performing subsequent internal operations or maintenance, the pull ring is pulled to the left to drive the L-shaped clamping rod 601 to separate from the clamping groove 6 to the left. The L-shaped clamping rod 601 drives the T-shaped guide rod 602 to the left to compress the first spring 603, and the locked state is released. The semicircular sealing box 4 can then be rotated to the right to open and release the upper sealing, thereby achieving the effect of convenient unlocking and opening of the upper part, and facilitating subsequent internal operations and maintenance.

[0032] Furthermore, the buffer shield assembly includes an arc-shaped baffle 5 arranged above the semicircular sealing box 4. The bottom of the arc-shaped baffle 5 is rectangular and fixedly connected to six T-shaped guide shafts 501. The semicircular sealing box 4 is slidably sleeved on the six T-shaped guide shafts 501. The top of the semicircular sealing box 4 is rectangular and has six vertical guide holes that are respectively slidably sleeved with the outer sides of the corresponding T-shaped guide shafts 501, which play the role of allowing the T-shaped guide shafts 501 to pass through and guide their vertical sliding. Six buffer springs 502 are fixedly connected between the top of the semicircular sealing box 4 and the bottom of the arc-shaped baffle 5, and the buffer springs 502 are movably sleeved on the corresponding The arc baffle 5 is arranged on the T-shaped guide shaft 501; the arc baffle 5, the T-shaped guide shaft 501 and the buffer spring 502 cooperate with each other, and the arc baffle 5 is used to block the accidental falling objects at the top. When the arc baffle 5 is displaced downward by the impact of the falling objects, the arc baffle 5 drives the six T-shaped guide shafts 501 to move downward and compresses the buffer spring 502, and uses the elastic force of the buffer spring 502 to buffer and unload the impact force, and drives the arc baffle 5 to rise and reset after the elastic unloading, thereby achieving the effect of elastic buffering and protection at the top, reducing the risk of damage caused by the impact of falling objects, and improving protection safety.

[0033] The method of using this embodiment is as follows: before installation, during installation, first, the second semicircular box 201 and the first semicircular box 2 are butted up and down and spliced ​​together on the outsides of the two natural gas pipes 101, and the inner sides of the semicircular sealing rings 202 are in contact with the outer sides of the corresponding natural gas pipes 101, the bottom ends of the fixing bolts 301 are passed through the corresponding two fixing sleeves 3, and then the nuts 302 are tightened on the corresponding fixing bolts 301 with a tool to fix the corresponding two fixing sleeves 3, and then the second semicircular box 201 and the first semicircular box 2 are further driven to press the four semicircular sealing rings 202 on the outsides of the two natural gas pipes 101, so as to fix the spliced ​​second semicircular box 201 and the first semicircular box 2 on the outsides of the two natural gas pipes 101, and the valve 1 is sealed and protected from damage by the fixed first semicircular box 2 and the second semicircular box 201, so as to achieve the effect of completely sealing and protecting the valve 1, and the surrounding sealing protection is used to prevent the valve 1 from being exposed, thereby preventing the wind, sand and rain from entering and causing corrosion, thereby improving comprehensive protection;

[0034] When the object is accidentally dropped, the arc baffle 5 is used to block the dropped object at the upper part. When the arc baffle 5 is displaced downward by the impact of the dropped object, the arc baffle 5 drives the six T-shaped guide shafts 501 to move downward and compress the buffer spring 502. The elastic force of the buffer spring 502 is used to buffer and unload the impact force, and the arc baffle 5 is driven to rise and reset after the elastic unloading force, so as to achieve the effect of elastic safety buffering and unloading force protection at the upper part when the object is dropped, reduce the phenomenon of hard shock force being transmitted downward, thereby reducing the risk of damage caused by the impact of dropped objects and improving the safety of anti-smashing protection.

[0035] When the valve 1 needs to be operated or maintained later, the personnel directly pulls the pull ring to the left to drive the L-shaped card rod 601 to the left and separate from the card slot 6. The L-shaped card rod 601 drives the T-shaped guide rod 602 to the left to compress the first spring 603, releasing the locked state, and then the semicircular sealing box 4 can be rotated to the right. The semicircular sealing box 4 drives the arc baffle 5 to rotate to the right through the T-shaped guide shaft 501, releasing the upper closure, achieving the effect of convenient unlocking and opening the upper part, and facilitating subsequent internal operation and maintenance work. After operation or maintenance, the semicircular sealing box 4 is rotated back to the left to close, and then the tension on the pull ring is released. At this time, the elastic force of the first spring 603 in the compressed state drives the L-shaped card rod 601 to the right through the T-shaped guide rod 602 to snap into the card slot 6, thereby achieving the clamping and locking of the semicircular sealing box 4, and forming a fully closed protection state again.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A natural gas pipeline valve protection device, comprising a valve (1) installed between two natural gas pipelines (101) and a protection device body matched with the valve (1), characterized in that: The protective device body comprises a first semicircular box (2) with an opening at the top and a second semicircular box (201) with an opening at the bottom, the valve (1) is located in the first semicircular box (2) and the second semicircular box (201), and semicircular sealing rings (202) movably sleeved on the outside of the corresponding natural gas pipeline (101) are fixedly mounted on the inner walls of both sides of the first semicircular box (2) and the second semicircular box (201), and the two semicircular sealing rings (202) on the same side are squeezed and contacted with each other on the adjacent sides, and the front and rear sides of the first semicircular box (2) and the second semicircular box (201) are both installed with the same threaded fixing assembly; The top and the upper right side of the second semicircular box (201) are both set as openings and a semicircular sealing box (4) with both the bottom and the left side being opened is rotatably installed thereon. A card slot (6) is provided on the top left side of the semicircular sealing box (4). An elastic card fixing component for card fixing and locking is movably installed in the card slot (6). The second semicircular box (201) is sleeved on the elastic card fixing component. A buffer shield assembly for preventing falling objects from being buffered is installed on the top of the semicircular sealing box (4).

2. A natural gas pipeline valve protection device according to claim 1, characterized in that: The threaded fixing assembly comprises two fixing sleeves (3), the front and rear sides of the first semicircular box (2) and the front and rear sides of the second semicircular box (201) are fixedly connected to the corresponding fixing sleeves (3), the movable sleeves in the two fixing sleeves (3) on the same side are provided with the same fixing bolt (301), the threaded sleeve on the fixing bolt (301) is provided with a nut (302), and the top of the nut (302) is in tight contact with the bottom of the corresponding fixing sleeve (3) located below.

3. A natural gas pipeline valve protection device according to claim 1, characterized in that: The elastic clamping assembly comprises an L-shaped clamping rod (601) movably mounted in the clamping slot (6); a T-shaped guide rod (602) is fixedly connected to the left inner wall of the L-shaped clamping rod (601); the second semicircular box (201) is slidably sleeved on the L-shaped clamping rod (601) and the T-shaped guide rod (602); a first spring (603) is fixedly connected between the right inner wall of the T-shaped guide rod (602) and the left inner wall of the second semicircular box (201); the first spring (603) is movably sleeved on the T-shaped guide rod (602); and a pull ring is fixedly connected to the left side of the L-shaped clamping rod (601).

4. A natural gas pipeline valve protection device according to claim 1, characterized in that: The buffer shield assembly comprises an arc-shaped baffle (5) arranged above the semicircular sealing box (4); the bottom of the arc-shaped baffle (5) is rectangular and fixedly connected to six T-shaped guide shafts (501); the semicircular sealing box (4) is slidably sleeved on the six T-shaped guide shafts (501); six buffer springs (502) are fixedly connected between the top of the semicircular sealing box (4) and the bottom of the arc-shaped baffle (5), and the buffer springs (502) are movably sleeved on corresponding T-shaped guide shafts (501).

5. A natural gas pipeline valve protection device according to claim 1, characterized in that: A same hinge is fixedly installed between the right bottom of the semicircular sealed box (4) and the right side of the second semicircular box (201), and the semicircular sealed box (4) is rotatably connected to the second semicircular box (201) via the hinge.

6. A natural gas pipeline valve protection device according to claim 1, characterized in that: A first sealing strip (401) is bonded and fixed at the contact position between the semicircular sealing box (4) and the second semicircular box (201), and the first sealing strip (401) is in tight contact with the second semicircular box (201).

7. A natural gas pipeline valve protection device according to claim 1, characterized in that: A second sealing strip is bonded and fixed to the contact position between the bottom of the second semicircular box (201) and the first semicircular box (2), and the second sealing strip is in tight contact with the top of the first semicircular box (2).

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