CN219573392U

CN219573392U - Gas tightness monitoring device for natural gas conveying pipeline

Info

Publication number: CN219573392U
Application number: CN202320488946.1U
Authority: CN
Inventors: 鹏宇; 黄汉清; 盖振兴
Original assignee: Dongguan New Energy Management Co ltd
Current assignee: Dongguan New Energy Management Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-08-22
Anticipated expiration: 2033-03-14

Abstract

The utility model provides a natural gas conveying pipeline air tightness monitoring device, which relates to the technical field of natural gas pipeline tightness detection and comprises flanges at the joint of two natural gas pipelines, and is characterized in that: the flange is sleeved with a sealing element, and the sealing element is provided with a detection assembly; the sealing piece comprises an upper arc piece and a lower arc piece, the other ends of the upper arc piece and the lower arc piece are connected with buckling pieces, and ventilation grooves are formed in the middle parts of the upper arc piece and the lower arc piece; the detection assembly comprises a gas leakage box, a gas leakage plate and a gas storage tank, wherein the gas leakage plate is provided with a gas hole, the gas hole is positioned at the outer side of a gas inlet end of the gas leakage box, when the flange connection is aged and gas leakage occurs, gas is discharged from the joint of the upper arc piece and the gas leakage box and is ejected to the gas storage tank through the gas hole, when gas leakage occurs, the gas ejection of the leaked gas of the gas leakage plate can be clearly seen through the observation window, the gas leakage of a pipeline can be timely found, the gas leakage condition can be rapidly treated, and the living safety of residents is ensured.

Description

Gas tightness monitoring device for natural gas conveying pipeline

Technical Field

The utility model relates to the technical field of natural gas pipeline tightness detection, in particular to a natural gas conveying pipeline tightness monitoring device.

Background

Natural gas is usually inflammable and explosive gas and is transmitted in a long distance through a sealed pipeline, wherein the sealed pipeline is mainly formed by combining steel pipe welding and pipe joint sealing connection.

At present, the natural gas pipeline pipe joint seal in residential areas is usually connected through a flange, a rubber sealing ring is arranged on the abutting surface of the flange, the inside rubber can be aged after long-time use, the air tightness is poor, air leakage and other phenomena occur, therefore, staff can regularly detect the air tightness through a detector, when the air leakage of the joint is caused, the maintenance cannot be timely found, the monitoring cannot be carried out for a long time, and serious potential safety hazards exist.

Disclosure of Invention

The embodiment of the utility model aims to provide a natural gas conveying pipeline air tightness monitoring device which can solve the technical problem of natural gas conveying pipeline air tightness monitoring.

The embodiment of the utility model provides a natural gas conveying pipeline air tightness monitoring device, which comprises a flange at the joint of two natural gas pipes, wherein a sealing element is sleeved on the flange, and a detection assembly is arranged on the sealing element;

the sealing piece comprises an upper arc piece and a lower arc piece, the upper arc piece and the lower arc piece are respectively wrapped on the flange, the upper arc piece is hinged with one end of the lower arc piece, the other ends of the upper arc piece and the lower arc piece are connected with a buckling piece, and ventilation grooves are formed in the middle parts of the upper arc piece and the lower arc piece;

the detection assembly comprises an air leakage box, an air leakage plate and an air storage tank, wherein the air leakage box is communicated with the top of the upper arc piece, the air leakage plate is abutted to the air inlet end of the air leakage box, air holes are formed in the air leakage plate and are positioned on the outer side of the air inlet end of the air leakage box, and the air storage tank is communicated with the air outlet end of the air leakage box.

Further, the top of gas holder is connected with the barometer, the lateral wall intercommunication of gas holder has gas solenoid valve.

Further, the side wall of the air leakage box is provided with a transparent observation window.

Further, the upper arc piece and the lower arc piece are respectively provided with a sealing rubber sleeve, and the sealing rubber sleeves are sleeved on the outer wall of the flange.

Further, the inner wall of the upper arc piece and the inner wall of the lower arc piece are both provided with sealing rubber gaskets.

Further, the buckling piece comprises a buckle and a fixing strip, the buckle is fixed on the side wall of the upper arc piece, the fixing strip is fixed on the side wall of the lower arc piece, and a handle is arranged on the outer wall of the buckle.

The utility model has the beneficial effects that:

according to the sealing element provided by the utility model, the detection component is arranged on the sealing element, when the flange connection is aged and air leakage occurs, air is discharged from the connection part of the upper arc piece and the air leakage box, the pressure relief plate is jacked up, and is discharged into the air storage tank through the air holes, when air leakage occurs, the leaked air of the air leakage plate can be clearly seen to jack up through the observation window, air leakage of a pipeline can be timely found, the air leakage condition can be rapidly treated, and the living safety of residents is ensured.

The air storage tank is communicated with the air leakage box, so that leaked air can be temporarily collected and stored, and the leakage of the air is avoided, and the air quality is influenced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic side view of an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of the structure at A-A of FIG. 2.

The reference numerals are respectively:

1. a seal; 11. an upper arc piece; 12. a lower arc piece; 13. a vent groove; 14. sealing the rubber sleeve; 15. sealing rubber cushion; 2. a detection assembly; 21. an air leakage box; 211. an observation window; 22. a gas release plate; 221. ventilation holes; 23. a gas storage tank; 231. a gas solenoid valve; 3. a fastener; 31. a buckle; 32. a fixing strip; 33. a handle; 4. an air pressure gauge; 5. a flange;

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-3, a natural gas conveying pipeline air tightness monitoring device comprises a flange 5 at the joint of two natural gas pipes, wherein a sealing element is sleeved on the flange 5, and a detection assembly is arranged on the sealing element;

when the sealing device is used, the sealing assembly is used for guaranteeing the tightness of the flange 5, leakage gas is prevented from being discharged to the outside, and the sealing of the flange 5 can be timely monitored by the detection assembly, so that the use safety of residents is guaranteed.

Referring to fig. 1 and 3, the sealing member comprises an upper arc member and a lower arc member, the upper arc member is wrapped on the upper part of the flange 5, the lower arc member is wrapped on the lower part of the flange 5, the upper arc member is hinged with one end of the lower arc member, the other ends of the upper arc member and the lower arc member are connected with a buckling member, and ventilation grooves are formed in the middle parts of the upper arc member and the lower arc member;

when the air leakage protection device is used, after the flange 5 is wrapped by the upper arc piece and the lower arc piece, the buckling piece is buckled, so that the flange 5 is wrapped completely and hermetically, when the flange 5 leaks air, air is discharged from the flange 5 into the ventilation groove and is discharged from the ventilation groove into the air leakage box, and the air is prevented from being discharged into the external environment.

Referring to fig. 1 and 3, the detection assembly comprises a gas discharge box, a gas discharge plate and a gas storage tank, wherein the gas discharge box is communicated with the top of the upper arc piece, the gas discharge plate is abutted to the gas inlet end of the gas discharge box, the gas discharge plate is provided with a gas vent, the gas vent is positioned at the outer side of the gas inlet end of the gas discharge box, and the gas storage tank is communicated with the gas outlet end of the gas discharge box;

when the flange 5 is connected and aged, when the condition of air leakage is generated, air is discharged from the connection part of the upper arc piece and the air leakage box, the pressure relief plate is jacked up, the air is discharged into the air storage tank through the air holes, when the air leakage is generated, the air leakage plate can be clearly seen to be jacked up by the leaked air through the observation window, the air leakage of the flange 5 can be timely found, the air leakage condition can be rapidly treated, and the living safety of residents is ensured.

Referring to FIG. 1, the top of the air storage tank is connected with a barometer, and the side wall of the air storage tank is communicated with a gas electromagnetic valve;

when the electromagnetic valve is used, the leaked gas can be temporarily stored in the gas storage tank, the leakage of the gas is avoided, whether the gas is flushed into the gas storage tank or not can be timely observed through the barometer, the severity of the leakage is accurately found, the electromagnetic valve can automatically control the gas discharge of the gas storage tank, and the phenomenon that the gas is inhaled carelessly by an artificial switch is avoided.

Referring to fig. 1, a transparent observation window is provided on a sidewall of the venting box, so that whether the venting plate is lifted by leaked gas or not and whether the venting plate is in a venting state can be effectively observed.

Referring to fig. 3, the upper arc member and the lower arc member are respectively provided with a sealing rubber sleeve, the sealing rubber sleeves are sleeved on the outer wall of the flange 5, and the tightness of the flange 5 can be more effectively enhanced through the sealing rubber sleeves.

Referring to fig. 3, sealing rubber gaskets are arranged on the inner wall of the upper arc piece and the inner wall of the lower arc piece, so that tightness between the upper arc piece and the lower arc piece and tightness between the upper arc piece, the lower arc piece and the pipeline can be better ensured.

Referring to fig. 2, the fastener comprises a fastener and a fixing strip, the fastener is fixed on the side wall of the upper arc piece, the fastener is obliquely arranged towards one side of the fixing strip, the fixing strip is fixed on the side wall of the lower arc piece, the fixing strip is obliquely arranged towards one side of the fastener, and a handle is arranged on the outer wall of the fastener;

when the sealing device is used, the sealing device is buckled on the fixing strip through the buckle, the upper arc piece and the lower arc piece are effectively and tightly attached, and the handle on the buckle can facilitate the disassembly of the sealing piece.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a natural gas pipeline gas tightness monitoring devices, includes the flange of two natural gas pipe junctions, its characterized in that: the flange is sleeved with a sealing element, and a detection assembly is arranged on the sealing element;

2. The natural gas conveying pipeline air tightness monitoring device according to claim 1, wherein the top of the gas storage tank is connected with a barometer, and the side wall of the gas storage tank is communicated with a gas electromagnetic valve.

3. The natural gas transmission pipeline tightness monitoring device according to claim 1, wherein a transparent observation window is arranged on the side wall of the air leakage box.

4. The natural gas conveying pipeline air tightness monitoring device according to claim 1, wherein sealing rubber sleeves are arranged in the upper arc piece and the lower arc piece, and the sealing rubber sleeves are sleeved on the outer wall of the flange.

5. The natural gas conveying pipeline air tightness monitoring device according to claim 1, wherein sealing rubber gaskets are arranged on the inner wall of the upper arc piece and the inner wall of the lower arc piece.

6. The natural gas conveying pipeline air tightness monitoring device according to claim 1, wherein the buckling piece comprises a buckle and a fixing strip, the buckle is fixed on the side wall of the upper arc piece, the fixing strip is fixed on the side wall of the lower arc piece, and a handle is arranged on the outer wall of the buckle.