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CN-224229566-U - Safety valve

CN224229566UCN 224229566 UCN224229566 UCN 224229566UCN-224229566-U

Abstract

The utility model relates to the technical field of natural gas pipelines and discloses a safety valve, which comprises a valve body, wherein valve pipes are fixedly connected to two sides of the valve body, a heat conducting ring is fixedly connected to the surface of the valve pipe, a circulating cavity is formed in the heat conducting ring, a heating mechanism is arranged at the bottom of the valve body, the heating mechanism comprises a box body fixedly connected to the bottom of the valve body, an electric heating rod is fixedly arranged in the box body, and micro water pumps are fixedly arranged on two sides of the box body.

Inventors

  • FENG YAOYU
  • LU YULONG
  • LIU BIAO
  • HAO YULONG

Assignees

  • 山西天然气有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (6)

  1. 1. The safety valve comprises a valve body (1), wherein valve pipes (2) are fixedly connected to two sides of the valve body (1), and the safety valve is characterized in that a heat conducting ring (3) is fixedly connected to the surface of the valve pipe (2), a circulating cavity (4) is formed in the heat conducting ring (3), and a heating mechanism is arranged at the bottom of the valve body (1); The heating mechanism comprises a box body (5) fixedly connected to the bottom of the valve body (1), an electric heating rod (6) is fixedly arranged in the box body (5), miniature water pumps (7) are fixedly arranged on two sides of the box body (5), a water inlet pipe (8) is fixedly connected to the water outlet end of each miniature water pump (7), one end of each water inlet pipe (8) is fixedly communicated with the corresponding heat conducting ring (3), a water return pipe (9) is fixedly communicated with one side of the corresponding heat conducting ring (3), and one end of each water return pipe (9) is fixedly communicated with one side of the corresponding box body (5); The heat preservation mechanism is arranged on the surface of the heat conduction ring (3).
  2. 2. The safety valve according to claim 1, wherein the heat preservation mechanism comprises an upper shell (10) and a lower shell (11), wherein both sides of the upper shell (10) are outwards extended to form a first skirt edge (12), both sides of the lower shell (11) are outwards extended to form a second skirt edge (13), heat preservation cotton (14) is fixedly connected to inner walls of the upper shell (10) and the lower shell (11), and a positioning mechanism is arranged at the top of the second skirt edge (13).
  3. 3. The safety valve according to claim 2, wherein the positioning mechanism comprises a clamping block (15) fixedly connected to the top of the second skirt edge (13), two moving blocks (16) are arranged in the clamping block (15), positioning rods (17) are fixedly connected to one sides, away from each other, of the two moving blocks (16), one end of each positioning rod (17) penetrates through the outer side of the clamping block (15), a pressing block (18) is fixedly connected to the top of each moving block (16), the top of each pressing block (18) penetrates through the top of the corresponding clamping block (15), clamping grooves (19) matched with the corresponding clamping block (15) are formed in the top of the corresponding first skirt edge (12), and positioning holes (20) matched with the corresponding positioning rods (17) are formed in the inner wall of each clamping groove (19).
  4. 4. A safety valve according to claim 3, wherein a spring (21) is provided in the block (15), and two ends of the spring (21) are fixedly connected to one side of the two moving blocks (16), respectively.
  5. 5. The safety valve according to claim 2, wherein the top of the second skirt (13) is fixedly connected with a cross limiting block (22), and a cross limiting groove (23) matched with the cross limiting block (22) is formed in the top of the first skirt (12).
  6. 6. A safety valve according to claim 1, wherein the inner wall of the heat conducting ring (3) is fixedly connected with a partition plate (24), and the partition plate (24) is positioned between the water inlet pipe (8) and the water return pipe (9).

Description

Safety valve Technical Field The utility model relates to the technical field of natural gas pipelines, in particular to a safety valve. Background Natural gas pipelines refer to pipelines that transport natural gas (including associated gas from oilfield production) from a production site or process plant to a municipal gas distribution center or industrial enterprise user, also known as gas pipelines. The natural gas pipeline is utilized to convey natural gas, the natural gas is conveyed in a large amount on land, and the safety valve is used for cutting off and connecting one accessory in the natural gas pipeline. Through searching, for example, chinese patent literature discloses a safety valve for a natural gas transmission pipeline (bulletin number: CN 222543141U). The valve comprises a safety valve body, an output end and an input end, wherein the output end is the right side of the safety valve body, and the input end is the left side of the valve. According to the utility model, the installation pipe, the sponge and the sealing component are arranged, when natural gas is conveyed to the position of the output end through the input end, the sponge can absorb moisture and impurities in the natural gas into the sponge, meanwhile, holes in the sponge can not obstruct the circulation of the natural gas, the moisture and impurities in the natural gas are prevented from corroding the safety valve body, the service life of the safety valve body is ensured, the problem that in the actual use process, the existing valve is easy to corrode due to the fact that the natural gas contains a certain amount of moisture and impurities, the existing valve does not have the function of adsorbing the moisture and the impurities, the service life of the valve is easy to be reduced, the use cost is increased, and the safety valve has a certain limitation is solved. In the prior art and the scheme, water in the natural gas can be adsorbed, so that the service life of the valve is prolonged, but when the existing valve is used in winter, the valve pipe is frozen due to too low temperature, natural gas cannot be normally conveyed, and the practicability of the safety valve is reduced. Disclosure of utility model The present utility model is directed to a safety valve, which solves the above-mentioned problems of the prior art. The safety valve comprises a valve body, wherein valve pipes are fixedly connected to two sides of the valve body, a heat conducting ring is fixedly connected to the surface of the valve pipe, a circulating cavity is formed in the heat conducting ring, and a heating mechanism is arranged at the bottom of the valve body; the heating mechanism comprises a box body fixedly connected to the bottom of the valve body, an electric heating rod is fixedly arranged in the box body, miniature water pumps are fixedly arranged on two sides of the box body, a water inlet pipe is fixedly connected to the water outlet end of each miniature water pump, one end of each water inlet pipe is fixedly communicated with a heat conducting ring, one side of each heat conducting ring is fixedly communicated with a water return pipe, and one end of each water return pipe is fixedly communicated with one side of the box body; The heat preservation mechanism is arranged on the surface of the heat conduction ring. Preferably, the heat preservation mechanism comprises an upper shell and a lower shell, wherein the two sides of the upper shell are outwards extended to form a first skirt edge, the two sides of the lower shell are outwards extended to form a second skirt edge, the inner walls of the upper shell and the lower shell are fixedly connected with heat preservation cotton, and the top of the second skirt edge is provided with a positioning mechanism. Preferably, the positioning mechanism comprises a clamping block fixedly connected to the top of the second skirt edge, two moving blocks are arranged in the clamping block, one sides of the moving blocks, which are far away from each other, are fixedly connected with positioning rods, one ends of the positioning rods penetrate through the outer sides of the clamping block, the tops of the moving blocks are fixedly connected with pressing blocks, the tops of the pressing blocks penetrate through the tops of the clamping blocks, clamping grooves matched with the clamping blocks for use are formed in the tops of the first skirt edge, and positioning holes matched with the positioning rods for use are formed in the inner walls of the clamping grooves. Preferably, a spring is arranged in the clamping block, and two ends of the spring are fixedly connected with one sides of the two moving blocks respectively. Preferably, the top of second shirt rim fixedly connected with cross stopper, the cross spacing groove that uses with the cooperation of cross stopper has been seted up at the top of first shirt rim. Preferably, the inner wall of the heat conducting ring is fixedly connected with