CN213455944U

CN213455944U - Pipeline pressure detection structure

Info

Publication number: CN213455944U
Application number: CN202022894267.3U
Authority: CN
Inventors: 胡江; 马照财; 程宇
Original assignee: Guangzhou Gas Appliance Inspection Service Co ltd; Guangzhou Gas Group Co Ltd
Current assignee: Guangzhou Gas Technology Co ltd; Guangzhou Gas Group Co Ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-06-15
Anticipated expiration: 2030-12-04

Abstract

The utility model relates to a pressure detection technical field discloses a pipeline pressure detection structure, including pipeline and elasticity inflation piece, be equipped with the airflow channel who supplies the gas circulation in the pipeline, one side of pipeline seted up with the air vent that airflow channel is linked together, elasticity inflation piece cover is located on the air vent, elasticity inflation piece can follow the pressure variation of pipeline and grow or reduce. The utility model provides a pipeline pressure detects structure can help user or staff directly perceivedly to judge pipeline pressure, reduces the human cost of maintenance.

Description

Pipeline pressure detection structure

Technical Field

The utility model relates to a pressure detection technical field especially relates to a pipeline pressure detection structure.

Background

In a gas equipment pipe network, only pressure regulating equipment or individual gas equipment is provided with a pressure gauge for monitoring pressure, and no pressure detection device is fixed between the pressure regulating equipment and the gas equipment. If the pressure of the section of the pipe network needs to be detected, a worker can only remove the interface between the section of the pipe network and detect the position of the interface by an instrument. When the gas pressure of a stove at a user end is insufficient, the user and workers cannot directly judge whether the gas meter is caused by a pipeline fault in front of the gas meter or a pipeline fault behind the gas meter. Because the number of maintenance personnel who are responsible for maintaining the pipeline around the gas table and the skills that it possesses are different, in view of that user or staff can't directly judge that the pressure of which section pipeline is that the problem appears, the staff probably needs to go to the door to maintain, detect many times, leads to the manpower extravagant, and still disturb the people.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a pipeline pressure detects structure, it can help user or staff directly perceivedly to judge pipeline pressure, reduces the human cost of maintenance.

In order to realize the above object, the utility model provides a pipeline pressure detection structure, it includes pipeline and elasticity inflation piece, be equipped with the airflow channel who supplies the gas circulation in the pipeline, one side of pipeline seted up with the air vent that airflow channel is linked together, elasticity inflation piece cover is located on the air vent, elasticity inflation piece can follow the pressure change of pipeline and grow or reduce.

Optionally, the axis of the vent is perpendicular to the axis of the airflow passage.

Optionally, one side of the pipeline is provided with a protrusion extending outwards, the protrusion is in a circular ring shape, the protrusion surrounds the vent hole, and the elastic expansion piece is detachably sleeved on the protrusion.

Optionally, still include the protective housing, protective housing detachably cover is established outside the arch, be equipped with the protection chamber in the protective housing, elasticity inflation spare is located the protection intracavity just can the protection intracavity inflation or reduce, be equipped with on the protective housing with the through-hole of protection chamber intercommunication.

Optionally, the protective shell is threadedly connected to the boss.

Optionally, the protective housing includes a first housing and a second housing, the top of the first housing is fixedly connected to the bottom of the second housing, the first housing has a first cavity, the second housing has a second cavity, the first cavity and the second cavity are communicated and jointly form the protection cavity, the first housing is cylindrical, an internal thread is arranged on the inner side wall of the first housing, an external thread matched with the internal thread is arranged on the side surface of the raised periphery, the width of the second housing is smaller than the outer diameter of the first housing, and the through hole is formed in the top of the second housing.

Optionally, the cross-sectional shape of the second housing is hexagonal.

The utility model provides a pair of pipeline pressure detection structure compares with prior art, and its beneficial effect lies in: the utility model discloses a be equipped with the air vent on the pipeline, the air vent upper shield is equipped with the elasticity inflation piece that can increase and reduce along with atmospheric pressure change. When the air pressure in the pipeline is stable, the elastic expansion piece can expand. When the pipeline breaks down, the air pressure in the air flow channel is unstable, the air pressure is reduced, and the elastic expansion piece is shrunk. The staff judges the atmospheric pressure condition and the fault condition in the pipeline according to the volume change of elasticity inflation piece. This simple structure need not external power supply, and the cost is lower, and long service life can save a large amount of manpowers, shortens repair time, reduces the number of times of visiting the door and disturbing residents, improves the user and uses the impression.

Drawings

Fig. 1 is a schematic structural diagram of a pipeline pressure detection structure according to an embodiment of the present invention;

fig. 2 is a top view of the pipeline pressure detecting structure according to the embodiment of the present invention.

In the figure, 1, a pipeline; 2. an elastic expansion member; 3. an air flow channel; 4. a vent hole; 5. a protrusion; 6. a protective shell; 61. a first housing; 62. a second housing; 7. a through hole; 8. and protecting the cavity.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms used in the present invention are used in the description of the present invention, and it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like used in the present invention are used as the terms of the directions or positional relationships shown in the drawings, and are used only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be interpreted as a limitation of the present invention.

It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the utility model discloses a pipeline pressure detection structure of preferred embodiment, it includes pipeline 1 and elasticity inflation piece 2, is equipped with the airflow channel 3 that supplies the gas circulation in the pipeline 1, and air vent 4 that is linked together with airflow channel 3 is seted up to one side of pipeline 1, and elasticity inflation piece 2 covers and is located air vent 4, and elasticity inflation piece 2 can be along with the pressure variation of pipeline 1 and grow or reduce.

Based on the above technical scheme, pipeline 1 in this embodiment is the galvanized round pipe, and pipeline 1 is the straight tube, and its inside is equipped with the air current passageway 3 that the circulation has the natural gas. One side of the pipeline 1 is provided with a vent hole 4 communicated with the airflow channel 3, and the vent hole 4 is covered with an elastic expansion piece 2. The elastic expansion element 2 in this embodiment is preferably a flat balloon of rubber material, the tension of which is equal to the minimum gas pressure required by the gas appliance. The elastic expansion member 2 can expand or contract according to the air pressure in the air flow passage 3. In practical situations, the detection structure is applied to a gas pipeline and is installed at the upstream section of a gas meter. When the gas pressure in the pipe at the upstream section of the gas meter is normal, a certain gas pressure exists in the gas flow channel 3, and the elastic expansion piece 2 expands. When the pipeline 1 at the upstream section of the gas meter breaks down, the gas pressure of the gas flow channel 3 is reduced, and the elastic expansion piece 2 contracts and is flat. And a user or a worker can judge whether the pipeline at the upstream section of the gas meter breaks down or not according to the state of the elastic expansion piece 2. If the upstream section has a fault, a maintenance person responsible for maintaining the gas meter front pipeline 1 is arranged to maintain the upstream section. If the air pressure of the stove at the user end is insufficient and the upstream section does not have a fault, the fault is proved to be present at the downstream section of the gas meter, and maintenance personnel in charge of maintaining the rear pipeline 1 of the gas meter can be arranged to maintain the gas meter in the front, so that the effects of quick judgment and high-efficiency maintenance are achieved.

Wherein the position of the vent hole 4 can be set according to actual conditions, and preferably, the axis of the vent hole 4 is perpendicular to the axis of the airflow channel 3. If the included angle between the axis of the vent hole 4 and the axis of the airflow channel 3 is not equal to 90 °, the elastic expansion piece 2 sleeved on the vent hole 4 cannot be expanded or reduced well according to the pressure in the airflow channel 3. When the axis of the vent hole 4 is perpendicular to the axis of the airflow channel 3, the elastic expansion piece 2 can not affect the trend of the airflow and can sensitively detect the air pressure in the airflow channel 3. One side of the pipeline 1 is provided with a bulge 5 extending outwards, the bulge 5 is arranged around the vent hole 4, and the elastic expansion piece 2 is detachably sleeved on the bulge 5. The elastic expansion piece 2 is sleeved on the protrusion 5, so that the effect of tightly connecting the elastic expansion piece 2 and the protrusion 5 is achieved, and the elastic expansion piece 2 is prevented from leaking air outwards. The shape of the bulge 5 is circular, which ensures that the expansion change volume of the elastic expansion piece 2 in all directions is consistent, and avoids explosion caused by stress concentration at a certain point on the elastic expansion piece 2.

In addition, pipeline 1 pressure measurement structure still includes protective housing 6, and protective housing 6 detachably cover is established outside arch 5. The protective shell 6 may be detachably connected to the projection 5 by a snap connection or a screw connection or in some other way. Be equipped with protection chamber 8 in the protective housing 6, elasticity inflation piece 2 is located protection chamber 8 and can expand or contract in protection chamber 8. The protective housing 6 is used for protecting the elastic expansion piece 2 outside the vent hole 4, and the elastic expansion piece 2 is prevented from being punctured by an external sharp object, so that pressure detection is disabled, and meanwhile, gas leakage can be caused. The protective shell 6 is provided with a through hole 7 communicated with the protective cavity 8, and the through hole 7 is used for keeping the pressure in the protective cavity 8 constant, so that the elastic expansion piece 2 can be expanded or reduced. Meanwhile, a user or a worker can observe the volume change of the elastic expansion member 2 through the through hole 7. In actual operation, protective housing 6 can be made by transparent plastic material, and convenience of customers or staff observes the grow and diminish of elasticity inflation piece 2.

Specifically, the protective case 6 is screwed with the boss 5. The lower part of protective housing 6 is equipped with the internal thread, and protruding 5's periphery side is equipped with the external screw thread with internal thread screw-thread fit, realizes that protective housing 6 is connected with protruding 5's detachably through threaded connection's mode. When elastic expansion piece 2 needs to be replaced, protective housing 6 is unscrewed, elastic expansion piece 2 is detached from protrusion 5, new elastic expansion piece 2 is sleeved on cylindrical protrusion 5, and protective housing 6 is screwed on protrusion 5, so that operation is convenient. Elasticity inflation piece 2 is the balloon, and the bottom of balloon cup joints on cylindric protruding 5 external screw threads, in actual operation, can tie the balloon bottom at protruding 5 external screw thread bottom sides with the rubber band to fix the balloon better.

More specifically, the protective case 6 includes a first case 61 and a second case 62, a top portion of the first case 61 is fixedly connected to a bottom portion of the second case 62, and the first case 61 and the second case 62 are integrally formed. The first housing 61 has a first cavity and the second housing 62 has a second cavity, the first and second cavities being in communication and together forming the protection cavity 8. The volume of the first housing 61 is not less than the volume of the elastic expansion member 2 when it is expanded to the maximum. First casing 61's shape is cylindric, is equipped with the internal thread on first casing 61's the inside wall, and protruding 5's periphery side is equipped with the external screw thread with internal thread screw-thread fit, through the cooperation of internal thread and external screw thread, realizes first casing 61 spiro union on protruding 5. The width of the second housing 62 is smaller than the outer diameter of the first housing 61, and the through-hole 7 is provided at the top of the second housing 62. Protective housing 6 is boss column structure, and the staff accessible rotates second casing 62, drives whole protective housing 6 and rotates, realizes dismantling protective housing 6 from pipeline 1, or installs protective housing 6 in one side of pipeline 1. To facilitate the operator twisting the second housing 62, the second housing 62 has a hexagonal cross-sectional shape. The worker can screw the second housing 62 using a wrench.

The utility model discloses a working process does: the protective shell 6 is screwed on the cylindrical protrusion 5. During installation, the bottom of the elastic expansion piece 2 is sleeved outside the bulge 5 to achieve a sealing effect, and the protective shell 6 is screwed down to protect the elastic expansion piece 2. When the gas meter is used, when the pressure of the pipeline 1 at the upstream section of the gas meter is normal, the elastic expansion piece 2 can expand to fill the whole protection cavity 8. When the upstream section of the pipeline 1 breaks down, the pressure in the airflow channel 3 is insufficient, the balloon is flat, and the protection cavity 8 is empty. By observing the state of the elastic expansion piece 2, whether the pressure of the pipeline 1 at the upstream section of the gas meter is normal is judged, so that whether the pipeline 1 at the upstream section has a fault is judged.

To sum up, the embodiment of the utility model provides a pipeline pressure detection structure is equipped with the air vent on its pipeline, and the air vent upper shield is equipped with the elasticity inflation piece that can increase and reduce along with atmospheric pressure changes. When the air pressure in the pipeline is stable, the elastic expansion piece can expand. When the pipeline breaks down, the air pressure in the air flow channel is unstable, the air pressure is reduced, and the elastic expansion piece is shrunk. The staff judges the atmospheric pressure condition and the fault condition in the pipeline according to the volume change of elasticity inflation piece. This simple structure need not external power supply, and the cost is lower, and long service life can save a large amount of manpowers, shortens repair time, reduces the number of times of visiting the door and disturbing residents, improves the user and uses the impression.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a pipeline pressure detection structure, its characterized in that includes pipeline and elasticity inflation spare, be equipped with the air current channel that supplies the gas circulation in the pipeline, one side of pipeline seted up with the air vent that air current channel is linked together, elasticity inflation spare cover is located on the air vent, elasticity inflation spare can be followed the pressure variation of pipeline and grow or reduce.

2. The duct pressure detecting structure according to claim 1, wherein an axis of the vent hole is perpendicular to an axis of the airflow passage.

3. The pipe pressure detecting structure according to claim 1 or 2, wherein a protrusion extending outward is provided on one side of the pipe, the protrusion is shaped like a circular ring, the protrusion is disposed around the vent hole, and the elastic expansion member is detachably fitted over the protrusion.

4. The pipeline pressure detecting structure according to claim 3, further comprising a protective shell detachably sleeved outside the protrusion, wherein a protective cavity is formed in the protective shell, the elastic expansion member is located in the protective cavity and can expand or contract in the protective cavity, and a through hole communicated with the protective cavity is formed in the protective shell.

5. The line pressure detecting structure according to claim 4, wherein the protective case is screw-coupled with the boss.

6. The pipeline pressure detecting structure as claimed in claim 5, wherein the protective casing includes a first casing and a second casing, a top of the first casing is fixedly connected to a bottom of the second casing, the first casing has a first cavity, the second casing has a second cavity, the first cavity and the second cavity are communicated to form the protective cavity, the first casing is cylindrical, an inner thread is provided on an inner sidewall of the first casing, an outer thread which is in threaded engagement with the inner thread is provided on an outer peripheral side of the protrusion, a width of the second casing is smaller than an outer diameter of the first casing, and the through hole is provided on a top of the second casing.

7. The line pressure detecting structure according to claim 6, wherein the cross-sectional shape of the second housing is a hexagon.