Natural gas pipeline conveying bleeder

Abstract

The utility model relates to the technical field of bleeders, and discloses a natural gas pipeline conveying bleeder which comprises a tank body, a first valve and an exhaust pipe body which are communicated with the tank body, and a second valve which is arranged on the surface of the exhaust pipe body, and further comprises a thin plate which is fixedly connected to the surface of the first valve, the fixing ring is fixedly arranged on the surface of the exhaust pipe body in a sleeving mode. Through the arrangement of the four hollow cylinders, a worker can adjust the positions of the hollow cylinders according to the change of the air displacement during exhaust operation, so that when the air displacement is large, exhaust can be carried out through the cooperation of the lifting mechanism and the vent groove, and when the air displacement is small, the exhaust state can be judged through the auxiliary mechanism; the problems that when part of existing devices are used, normal shielding use of an exhaust pipe is easily affected after a cover is turned over, and normal exhaust operation is easily affected by the cover when the exhaust amount is small are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vent pipes, in particular to a vent pipe for natural gas pipeline transportation. Background Art

[0002] A natural gas pipeline vent pipe is a device specifically designed to release air or gas from within the pipeline. It is used to expel air from the pipeline when it is in operation. During pipeline or equipment maintenance, the vent pipe can be used to release gas from the pipeline to prevent the formation of explosive mixtures within the pipeline.

[0003] A search revealed a Chinese patent document, such as the one disclosed in CN202321873092.5, which describes a natural gas pipeline transmission and release device. This device includes a tank, a valve No. 1 disposed on the outer wall of the tank, a bracket disposed on the outer wall of the valve No. 1, a main pipeline interface disposed on the outer surface of one end of the tank, support legs disposed on the outer wall of the tank, a fixing plate disposed on the outer surface of the lower end of the support legs, an exhaust pipe disposed on the outer wall of the main pipeline interface, and a valve No. 2 disposed on the outer wall of the exhaust pipe.

[0004] The device disclosed in this patent can reduce the entry of external impurities into the exhaust pipe when in use. However, when the device is in use, if the exhaust volume is too large, the lid will flip over under the impact of the gas, thereby affecting the subsequent normal shielding of the exhaust pipe by the lid. In addition, when the gas is about to be discharged, the gas discharge volume is small at this time, and the lid may be difficult to be pushed open, thereby affecting the normal progress of the exhaust operation. Utility Model Content

[0005] The purpose of the utility model is to provide a natural gas pipeline transmission and release pipe to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a natural gas pipeline transmission and venting pipe, comprising a tank body, a No. 1 valve connected to the tank body and an exhaust pipe body, and a No. 2 valve installed on the surface of the exhaust pipe body, and further comprising:

[0007] A thin plate fixedly connected to the surface of valve No. 1, one end of the thin plate fixedly connected to a fixing ring, the fixing ring fixedly sleeved on the surface of the exhaust pipe body, the surface of the fixing ring provided with a sliding groove, the surface of the fixing ring slidably connected to a bracket, the surface of the bracket being installed with a positioning mechanism, the top of the thin plate provided with a positioning groove, the top of the exhaust pipe body fixedly connected to a fixing ring, the top of the fixing ring provided with a clamping groove;

[0008] A collar fixedly connected to the surface of the bracket. A hollow cylinder is fixedly sleeved inside the collar. A cavity is formed at the bottom of the hollow cylinder, and a connecting mechanism is installed inside the cavity. The number of hollow cylinders is four, and the four hollow cylinders are arranged in pairs. Auxiliary mechanisms are installed inside both of the two hollow cylinders. Visual windows are embedded on the surfaces of both of the two hollow cylinders. Column-shaped grooves are formed at the tops of both of the two hollow cylinders, and dust-proof nets are embedded inside the column-shaped grooves. Lifting mechanisms are installed inside the other two hollow cylinders, and ventilation grooves are formed on the surfaces of the other two hollow cylinders.

[0009] Preferably, the positioning mechanism includes a cross plate, a positioning rod, a U-shaped plate and a first compression spring. The cross plate is fixedly connected to the surface of the bracket. The positioning rod slidably penetrates through the cross plate and the U-shaped plate. The surface of the positioning rod contacts the inner wall of the positioning groove. Both ends of the U-shaped plate are fixedly connected to the surface of the bracket. The surface of the U-shaped plate contacts the inner wall of the chute. The first compression spring is sleeved on the surface of the positioning rod, and both ends of the first compression spring are fixedly connected to the top of the U-shaped plate and the bottom of the cross plate respectively.

[0010] Preferably, the connecting mechanism includes a clamping ring, a connecting rod, a pulling ring and a second compression spring. The surface of the clamping ring contacts both the inner wall of the cavity and the inner wall of the card slot. The connecting rod is fixedly connected to the top of the clamping ring. The bottom of the pulling ring contacts the top of the hollow cylinder. The top of the connecting rod is fixedly connected to the bottom of the pulling ring. The second compression spring is sleeved on the surface of the connecting rod, and both ends of the second compression spring are fixedly connected to the top of the inner wall of the cavity and the top of the clamping ring respectively.

[0011] Preferably, the auxiliary mechanism includes a bent rod, a long cylinder and a ribbon. Both ends of the bent rod are fixedly connected to both sides of the inner wall of the column-shaped groove. The long cylinder is fixedly sleeved on the surface of the bent rod. The ribbon is fixedly connected to the surface of the long cylinder.

[0012] Preferably, the lifting mechanism includes a smooth rod, a stress plate and a lifting plate. The smooth rod slidably penetrates through the top of the hollow cylinder. The stress plate and the lifting plate are respectively fixedly connected to the bottom and the top of the smooth rod. The surface of the stress plate contacts the inner wall of the hollow cylinder.

[0013] Preferably, a shielding ring is fixedly connected to the top of the inner wall of the ventilation groove, and the thickness of the shielding ring is less than the height of the ventilation groove.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The utility model is provided with four hollow cylinders. During the exhaust operation, the staff can adjust the position of the hollow cylinders according to the change of the exhaust volume, so that when the exhaust volume is large, the exhaust can be carried out through the cooperation of the lifting mechanism and the ventilation groove, and when the exhaust volume is small, the exhaust state can be judged by the auxiliary mechanism, which solves the problem that when some existing devices are in use, the lid is easily affected by the normal shielding of the exhaust pipe after being turned over, and the lid is easy to affect the normal exhaust operation when the exhaust volume is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the tank body, valve No. 1, exhaust pipe body, valve No. 2, thin plate, fixing ring and fixing ring of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model after the thin plate and the shaped plate are cut apart;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model after the hollow cylinder is cut open and the viewing window is removed;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model after the hollow cylinder is cut open;

[0021] Figure 6 For this utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0022] In the figure: 1. tank body; 2. Valve No. 1; 3. Exhaust pipe body; 4. Valve No. 2; 5. Thin plate; 6. Fixing ring; 7. Bracket; 8. Positioning mechanism; 81. Horizontal plate; 82. Positioning rod; 83. Shaped plate; 84. First compression spring; 9. Ring; 10. Hollow cylinder; 11. Connecting mechanism; 111. Snap ring; 112. Connecting rod; 113. Pull ring; 114. Second compression spring; 12. Auxiliary mechanism; 121. Bending rod; 122. Long cylinder; 123. Streamer; 13. Columnar groove; 14. Lifting mechanism; 141. Light rod; 142. Force plate; 143. Lifting plate; 15. Ventilation groove; 16. Shielding ring; 17. Fixing ring; 18. Snap groove. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-6 As shown, a natural gas pipeline transmission and release pipe includes a tank body 1, a No. 1 valve 2 and an exhaust pipe body 3 connected to the tank body 1, and a No. 2 valve 4 installed on the surface of the exhaust pipe body 3. A thin plate 5 is fixedly connected to the surface of the No. 1 valve 2, one end of the thin plate 5 is fixedly connected to a fixing ring 6, the fixing ring 6 is fixedly sleeved on the surface of the exhaust pipe body 3, a sliding groove is provided on the surface of the fixing ring 6, a bracket 7 is slidably connected to the surface of the fixing ring 6, a positioning mechanism 8 is installed on the surface of the bracket 7, a positioning groove is provided on the top of the thin plate 5, a sleeve 9 is fixedly connected to the surface of the bracket 7, a hollow cylinder 10 is fixedly sleeved inside the sleeve 9, a cavity is provided at the bottom of the hollow cylinder 10, a connecting mechanism 11 is installed inside the cavity, and the hollow cylinder 1 There are four 0s, and the four hollow cylinders 10 are arranged in pairs. Auxiliary mechanisms 12 are installed inside the two hollow cylinders 10, and visual windows are embedded on the surfaces of the two hollow cylinders 10. A cylindrical groove 13 is provided on the top of the two hollow cylinders 10, and a dust net is embedded inside the cylindrical groove 13. A lifting mechanism 14 is installed inside the other two hollow cylinders 10, and a ventilation groove 15 is provided on the surface of the other two hollow cylinders 10. A shielding ring 16 is fixedly connected to the top of the inner wall of the ventilation groove 15, and the thickness of the shielding ring 16 is less than the height of the ventilation groove 15, thereby reducing external debris from falling into the interior of the ventilation groove 15. A fixing ring 17 is fixedly connected to the top of the exhaust pipe body 3, and a card slot 18 is provided on the top of the fixing ring 17.

[0025] The positioning mechanism 8 includes a transverse plate 81, a positioning rod 82, a shaped plate 83 and a first compression spring 84. The transverse plate 81 is fixedly connected to the surface of the bracket 7. The positioning rod 82 slides through the transverse plate 81 and the shaped plate 83. The surface of the positioning rod 82 contacts the inner wall of the positioning groove. Both ends of the shaped plate 83 are fixedly connected to the surface of the bracket 7. The surface of the shaped plate 83 contacts the inner wall of the slide groove. The first compression spring 84 is sleeved on the surface of the positioning rod 82. The two ends of the first compression spring 84 are respectively fixedly connected to the top of the shaped plate 83 and the bottom of the transverse plate 81. After the staff adjusts the position of the bracket 7, under the action of the elastic force of the first compression spring 84, the positioning rod 82 passes through the shaped plate 83 and the positioning groove to fix the bracket 7 after the adjusted position.

[0026] The connecting mechanism 11 includes a snap ring 111, a connecting rod 112, a pull ring 113 and a second compression spring 114. The surface of the snap ring 111 is in contact with the inner wall of the cavity and the slot 18. The connecting rod 112 slides through the hollow cylinder 10. The connecting rod 112 is fixedly connected to the top of the snap ring 111. The bottom of the pull ring 113 is in contact with the top of the hollow cylinder 10. The top of the connecting rod 112 is fixedly connected to the bottom of the pull ring 113. The second compression spring 114 is sleeved on the surface of the connecting rod 112. The two ends of the second compression spring 114 are respectively in contact with the top of the inner wall of the cavity and the snap ring 111. The top of the hollow cylinder 10 is fixedly connected. Through the contact between the clamping ring 111 and the clamping groove 18, the staff can connect the corresponding hollow cylinder 10 to the exhaust pipe body 3 for subsequent use. When replacing the hollow cylinder 10, the staff only needs to pull the pull ring 113 to drive the clamping ring 111 to be moved out of the inside of the clamping groove 18 through the connecting rod 112. Thereafter, under the action of the elastic force of the second compression spring 114, the clamping ring 111 can be placed inside the clamping groove 18, thereby fixing the position of the corresponding hollow cylinder 10, so that the gas inside the exhaust pipe body 3 can be injected into the interior of the hollow cylinder 10 through the fixing ring 17.

[0027] The auxiliary mechanism 12 includes a bending rod 121, a long tube 122 and a ribbon 123. The two ends of the bending rod 121 are fixedly connected to the two sides of the inner wall of the cylindrical groove 13 respectively, the long tube 122 is fixedly sleeved on the surface of the bending rod 121, and the ribbon 123 is fixedly connected to the surface of the long tube 122. When a small amount of gas passes through the hollow tube 10 and is discharged through the cylindrical groove 13, the ribbon 123 is floated by the flow of gas, based on which the staff can judge the discharge status of the small amount of gas.

[0028] The lifting mechanism 14 includes a light rod 141, a force plate 142 and a lifting plate 143. The light rod 141 slides through the top of the hollow cylinder 10. The force plate 142 and the lifting plate 143 are fixedly connected to the bottom and top of the light rod 141 respectively. The surface of the force plate 142 contacts the inner wall of the hollow cylinder 10. When a large amount of gas is injected into the interior of the hollow cylinder 10 through the exhaust pipe body 3, the force plate 142 is forced to drive the light rod 141 to rise. At this time, the lifting plate 143 is lifted, and the staff can judge the exhaust status. At this time, the gas inside the tank body 1 can be discharged through the ventilation groove 15.

[0029] Working principle: The staff connects the two ends of the tank body 1 to the natural gas pipeline respectively. Then the staff opens the No. 1 valve 2 and the No. 2 valve 4 to discharge the gas in the natural gas pipeline. During this process, the staff can replace the position of the bracket 7 according to the exhaust volume so that the staff can better judge the exhaust status;

[0030] When the exhaust volume is large, the staff can adjust the bracket 7 to Figure 1In the state shown, at this time, the gas is injected into the interior of the corresponding hollow cylinder 10 through the exhaust pipe body 3, a large amount of gas squeezes the force-bearing plate 142, and the light rod 141 drives the lifting plate 143 to lift. At this time, the gas can be discharged through the ventilation groove 15. During this process, the staff can judge the exhaust volume according to the height of the lifting plate 143. When the bottom of the lifting plate 143 is close to the top of the hollow cylinder 10, or even when the bottom of the lifting plate 143 contacts the top of the hollow cylinder 10, the staff can pull the positioning rod 82 and move the bracket 7. At this time, the staff can adjust the position of the hollow cylinder 10, and a small amount of gas inside the exhaust pipe body 3 is discharged through the cylindrical groove 13 at the top of the hollow cylinder 10. During this process, the staff can observe the status of the streamer 123 through the visual window, so that the staff can promptly judge the time when the gas discharge operation is completed, thereby facilitating subsequent operations.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A natural gas pipeline transmission and venting pipe, comprising a tank body (1), a No. 1 valve (2) and an exhaust pipe body (3) in communication with the tank body (1), and a No. 2 valve (4) mounted on the surface of the exhaust pipe body (3), characterized in that: Also includes: A thin plate (5) is fixedly connected to the surface of the No. 1 valve (2), one end of the thin plate (5) is fixedly connected to a fixing ring (6), the fixing ring (6) is fixedly sleeved on the surface of the exhaust pipe body (3), the surface of the fixing ring (6) is provided with a sliding groove, the surface of the fixing ring (6) is slidably connected to a bracket (7), the surface of the bracket (7) is installed with a positioning mechanism (8), the top of the thin plate (5) is provided with a positioning groove, the top of the exhaust pipe body (3) is fixedly connected to a fixing ring (17), and the top of the fixing ring (17) is provided with a card slot (18); A collar (9) is fixedly connected to the surface of the bracket (7), a hollow cylinder (10) is fixedly sleeved inside the collar (9), a cavity is provided at the bottom of the hollow cylinder (10), a connecting mechanism (11) is installed inside the cavity, the number of the hollow cylinders (10) is four, and the four hollow cylinders (10) are arranged in pairs, an auxiliary mechanism (12) is installed inside the two hollow cylinders (10), a visual window is embedded in the surface of the two hollow cylinders (10), a cylindrical groove (13) is provided on the top of the two hollow cylinders (10), a dustproof net is embedded in the cylindrical groove (13), a lifting mechanism (14) is installed inside the other two hollow cylinders (10), and a ventilation groove (15) is provided on the surface of the other two hollow cylinders (10).

2. A natural gas pipeline transmission and release pipe according to claim 1, characterized in that: The positioning mechanism (8) includes a transverse plate (81), a positioning rod (82), a shaped plate (83) and a first compression spring (84), wherein the transverse plate (81) is fixedly connected to the surface of the bracket (7), the positioning rod (82) slides through the transverse plate (81) and the shaped plate (83), the surface of the positioning rod (82) contacts the inner wall of the positioning groove, both ends of the shaped plate (83) are fixedly connected to the surface of the bracket (7), the surface of the shaped plate (83) contacts the inner wall of the slide groove, the first compression spring (84) is sleeved on the surface of the positioning rod (82), and the two ends of the first compression spring (84) are fixedly connected to the top of the shaped plate (83) and the bottom of the transverse plate (81) respectively.

3. The natural gas pipeline transmission and release pipe according to claim 1, characterized in that: The connecting mechanism (11) includes a snap ring (111), a connecting rod (112), a pull ring (113) and a second compression spring (114). The surface of the snap ring (111) contacts the inner wall of the cavity and the slot (18). The connecting rod (112) is fixedly connected to the top of the snap ring (111). The bottom of the pull ring (113) contacts the top of the hollow cylinder (10). The top of the connecting rod (112) is fixedly connected to the bottom of the pull ring (113). The second compression spring (114) is sleeved on the surface of the connecting rod (112). The two ends of the second compression spring (114) are fixedly connected to the top of the inner wall of the cavity and the top of the snap ring (111) respectively.

4. The natural gas pipeline transmission and release pipe according to claim 1, characterized in that: The auxiliary mechanism (12) comprises a bending rod (121), a long tube (122) and a streamer (123); the two ends of the bending rod (121) are respectively fixedly connected to the two sides of the inner wall of the cylindrical groove (13); the long tube (122) is fixedly sleeved on the surface of the bending rod (121); and the streamer (123) is fixedly connected to the surface of the long tube (122).

5. The natural gas pipeline transmission and release pipe according to claim 1, characterized in that: The lifting mechanism (14) includes a light rod (141), a force-bearing plate (142) and a lifting plate (143); the light rod (141) slides through the top of the hollow cylinder (10); the force-bearing plate (142) and the lifting plate (143) are fixedly connected to the bottom and top of the light rod (141) respectively; the surface of the force-bearing plate (142) contacts the inner wall of the hollow cylinder (10).

6. The natural gas pipeline transmission and release pipe according to claim 1, characterized in that: A shielding ring (16) is fixedly connected to the top of the inner wall of the ventilation groove (15), and the thickness of the shielding ring (16) is smaller than the height of the ventilation groove (15).

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