CN-224214800-U - Gas leakage preventing device for water seal and cover plate

CN224214800UCN 224214800 UCN224214800 UCN 224214800UCN-224214800-U

Abstract

The utility model discloses a device for preventing gas leakage by a water seal and a cover plate, and relates to the technical field of gas conveying water seals. The gas-sealing type gas-sealing valve comprises a gate valve, a water-sealing part and a sealing part, wherein the left side and the right side of the gate valve are connected with a gas conveying pipeline through flanges, two connecting pipes are arranged on the gas conveying pipeline positioned on the left side, the water-sealing part is arranged on the gas conveying pipeline on the left side, and the water-sealing part is used for sealing water to prevent gas leakage. According to the utility model, the water seal part is arranged, particularly, when gas leaks, the gas can enter the U-shaped pipe, the water seal effect is achieved through the water flow in the U-shaped pipe, the gas leakage is avoided, the length of the left side of the U-shaped pipe is enough, and the water flow in the U-shaped pipe has enough flowing distance, so that the water seal part can adapt to the larger pressure of the gas, the gas leakage can be effectively prevented, the surrounding air is ensured, and the potential safety hazard is avoided.

Inventors

NIU XIANGWEI
ZHAO ZHANSHAN
LI QIANG
CHEN YOU
Shu Ziliang
LI JIAJUN
LI ZHUANGZHUANG
REN HAIJUN
ZOU MING

Assignees

山西晋钢智造科技实业有限公司

Dates

Publication Date: 20260508
Application Date: 20250529

Claims (6)

1. The utility model provides a water seal adds apron and prevents coal gas leakage device, includes gate valve (1), there is coal gas pipeline (11) gate valve (1) left side and right side through flange joint, is located left install two connecting pipes (12) on coal gas pipeline (11), its characterized in that still includes: the water seal part (2), the water seal part (2) is arranged on the left gas conveying pipeline (11), the water seal part (2) is used for sealing water to prevent gas leakage, and A sealing part (3), wherein the sealing part (3) is arranged inside a gas conveying pipeline (11) at the left side, and the sealing part (3) is used for blocking a connecting pipe (12) when gas leaks; Wherein the connecting pipe (12) is connected with the gas conveying pipeline (11) by welding and is used for conveying the gas in a circulating way.
2. The water seal cover plate gas leakage prevention device according to claim 1, wherein the water seal part (2) comprises a U-shaped pipe (21) arranged on a left gas conveying pipeline (11), a fixing frame (22) is fixedly connected to the left side of the U-shaped pipe (21), the bottom of the fixing frame (22) is fixedly connected with the gas conveying pipeline (11), and a transparent plate (23) is arranged on the front surface of the U-shaped pipe (21); The fixing frame (22) is used for supporting the U-shaped pipe (21), and the transparent plate (23) is used for observing water flow in the U-shaped pipe (21).
3. The water seal and cover plate gas leakage prevention device according to claim 2, wherein the top of the U-shaped pipe (21) is in threaded connection with a cover plate (24), a sealing ring (25) is sleeved on the inner side of the cover plate (24), and the sealing ring (25) is extruded after the cover plate (24) is in threaded connection with the U-shaped pipe (21); The cover plate (24) is detachably arranged, water is conveniently added into the U-shaped pipe (21), and the cover plate (24) shields the U-shaped pipe (21).
4. A water seal cover plate gas leakage prevention device according to claim 3, wherein the sealing part (3) comprises two conical plugs (31) arranged in the gas conveying pipeline (11), sliding rods (32) are slidably connected in the two conical plugs (31), connecting frames (33) are fixedly connected on the right sides of the sliding rods (32), and springs (35) are fixedly connected on the left sides of the two conical plugs (31); The left side of the spring (35) is fixedly connected with the inner wall of the gas conveying pipeline (11), and the front side and the back side of the connecting frame (33) are fixedly connected with the inner wall of the gas conveying pipeline (11).
5. The gas leakage preventing device for the water seal cover plate according to claim 4, wherein a triangular block (34) is fixedly connected to the right side of the connecting frame (33), the triangular block (34) is used for reducing resistance to gas, and the sliding rod (32) is used for supporting the conical plug (31).
6. The device for preventing gas leakage of the water seal cover plate according to claim 5, wherein the gate valve (1) is used for opening and closing the gate valve (1), gas is conveyed from the right side to the left side, conical surfaces are arranged on the left side and the right side of the conical plug (31), the conical surface on the left side of the conical plug (31) is used for sealing the connecting pipe (12), and the conical surface on the right side of the conical plug (31) is used for pushing the conical plug (31) by the gas with high pressure.

Description

Gas leakage preventing device for water seal and cover plate Technical Field The utility model belongs to the technical field of gas conveying water seals, and particularly relates to a water seal and cover plate gas leakage preventing device. Background The gas leakage preventing device with water sealing and cover plate is one safety device to prevent gas leakage via physical water sealing structure and the gas is transported via pipeline. The traditional gas conveying pipeline is usually provided with a gate valve for controlling the communication and closing of the pipeline, but after the gate valve is used for a long time, an internal sealing structure is worn to generate gaps, so that gas is reversely strung, and the condition of gas leakage is possibly caused due to overlarge pressure of the reversely strung gas, and the gas leakage not only affects the environment, but also has larger potential safety hazard. Disclosure of utility model The utility model aims to provide a water seal and cover plate gas leakage prevention device, which is characterized in that a water seal part is arranged, particularly, when gas leaks, the gas can enter a U-shaped pipe, the gas leakage is avoided by the water flow in the U-shaped pipe, the length of the left side of the U-shaped pipe is enough, the water flow in the U-shaped pipe has enough flowing distance, so that the device can adapt to the larger pressure of the gas, the gas leakage can be effectively prevented, the surrounding air is ensured, the potential safety hazard is avoided, the problem that the gap is generated due to abrasion of an internal sealing structure after the gate valve is used for a long time, the gas is reversely strung, and the gas leakage is possibly caused due to overlarge pressure of the reversely strung gas is solved. In order to solve the technical problems, the utility model is realized by the following technical scheme: the utility model relates to a water seal cover plate gas leakage prevention device, which comprises a gate valve, wherein the left side and the right side of the gate valve are connected with a gas conveying pipeline through flanges, two connecting pipes are arranged on the gas conveying pipeline positioned on the left side, and the device further comprises: the water seal part is arranged on the left coal gas conveying pipeline and is used for sealing water to prevent coal gas leakage, and A sealing part installed inside the left gas transmission pipe for blocking the connection pipe when gas leaks; The connecting pipe is connected with the gas conveying pipeline in a welding mode and is used for conveying gas in a circulating mode. Further, the water seal part comprises a U-shaped pipe arranged on the left coal gas conveying pipeline, the left side of the U-shaped pipe is fixedly connected with a fixing frame, the bottom of the fixing frame is fixedly connected with the coal gas conveying pipeline, and the front surface of the U-shaped pipe is provided with a transparent plate; The fixing frame is used for supporting the U-shaped pipe, and the transparent plate is used for observing water flow in the U-shaped pipe. Further, the top of the U-shaped pipe is connected with a cover plate in a threaded manner, a sealing ring is sleeved on the inner side of the cover plate, and the cover plate is extruded after being connected with the U-shaped pipe in a threaded manner; wherein, the apron is for dismantling the setting, conveniently adds water in the U-shaped pipe to the apron shelters from the U-shaped pipe. The sealing part comprises two conical plugs arranged in the gas conveying pipeline, sliding rods are slidably connected in the two conical plugs, a connecting frame is fixedly connected to the right side of the sliding rods, and springs are fixedly connected to the left sides of the two conical plugs; The left side of the spring is fixedly connected with the inner wall of the gas conveying pipeline, and the front side and the back side of the connecting frame are fixedly connected with the inner wall of the gas conveying pipeline. Further, the right side of the connecting frame is fixedly connected with a triangular block, the triangular block is used for reducing resistance to gas, and the sliding rod is used for supporting the conical plug. Further, the gate valve is used for opening and closing the gate valve, gas is conveyed from the right side to the left side, the conical surfaces on the left side and the right side of the conical plug are both conical surfaces, the conical surface on the left side of the conical plug is used for sealing the connecting pipe, and the conical surface on the right side of the conical plug is used for enabling the gas with larger pressure to push the conical plug. The utility model has the following beneficial effects: 1. according to the utility model, the water seal part is arranged, particularly, when gas leaks, the gas can enter the U-shaped pipe, the water seal effect is ac