CN217901153U

CN217901153U - Gas and liquid leakage detection device for conveying pipeline

Info

Publication number: CN217901153U
Application number: CN202221952927.1U
Authority: CN
Inventors: 徐铿; 占陈勇; 陈攀峰; 杨勇; 俞挺; 屈耀辉; 周行
Original assignee: Jiangxi Normal University
Current assignee: Jiangxi Normal University
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-11-25
Anticipated expiration: 2032-07-27

Abstract

The utility model relates to a check out test set technical field is revealed to gaseous liquid, concretely relates to detection device is revealed with gas and liquid to pipeline. The clamping piece is two concave pieces, and the two concave pieces are respectively sleeved on the flanges at the two sides and are connected with the first shell and the second shell through bolts; the first shell and the second shell are internally provided with an empty slot, a layer of first strain gauge is arranged on the outer side of the empty slot, a closed cavity is formed between the first strain gauge and the empty slot, and a first strain sensor is arranged on the inner side of the empty slot and is electrically connected with the first strain gauge; and a microcontroller, an audible and visual alarm and a power supply are arranged outside the clamping piece. The device can be used for the real-time supervision among gas and the liquid transportation process to can in time discover the leak point, the guarantee is carried the work safety and is gone on.

Description

Gas and liquid leakage detection device for conveying pipeline

Technical Field

The utility model relates to a gaseous liquid reveals check out test set technical field, concretely relates to detection device is revealed with gas and liquid to pipeline.

Background

At present, the leakage detection of gas and liquid basically adopts post detection, that is, after the leakage of the gas and liquid reaches a certain concentration in the air, different sensors and other modes are adopted for detecting different gases and liquids. The variety of gases or liquids transported industrially is limited by detection principles such as sensors, and different detection instruments are often required to be customized.

Meanwhile, the conveying pipelines usually need to be connected by flanges or welded at the joints of the adjacent pipelines; the pipeline joint is usually a weak part of the whole conveying pipeline, and leakage often occurs due to construction quality, corrosion, vibration and the like. Current pipeline is when the seam, only uses check out test set to detect after the construction is accomplished, and when using for a long time, the operator often only detects storage container, but ignores the condition of pipeline department, and then lacks the device that detects the pipeline node, if seam department takes place the crack, can lead to liquid or the gas leakage of pipeline interior transport, and the maintainer can't in time discover. Therefore, the seam position needs to be monitored in real time by using detection equipment, and a maintainer can find the seam position in time when leakage occurs.

Disclosure of Invention

An object of the utility model is to provide a detection device is revealed with gas and liquid to pipeline for the real-time supervision among gas and the liquid transportation process, so that can in time discover the leakage point, guarantee transport work safety goes on.

In order to achieve the above purpose, the utility model adopts the following technical scheme.

A gas and liquid leakage detection device for a conveying pipeline comprises a first shell, a second shell and a clamping piece, wherein the first shell and the second shell are arc-shaped, flanges are arranged on two sides of the first shell and the second shell respectively, the clamping piece is two concave pieces, the two concave pieces are sleeved on the flanges on the two sides respectively and are connected with the first shell and the second shell through bolts; the first shell and the second shell are internally provided with an empty slot, a layer of first strain gauge is arranged on the outer side of the empty slot, a closed cavity is formed between the first strain gauge and the empty slot, and a first strain sensor is arranged on the inner side of the empty slot and is electrically connected with the first strain gauge; the joint spare outside is equipped with microcontroller, audible-visual annunciator and power, first strain perception ware and audible-visual annunciator all with microcontroller electric connection, first strain perception ware, audible-visual annunciator and microcontroller all with power electric connection simultaneously.

Furthermore, a first transition cabin is arranged on the first shell, a first temperature and humidity sensor is arranged on the inner side of the first transition cabin, and the first temperature and humidity sensor is electrically connected with the microcontroller; two sides of the first transition cabin are respectively provided with a first air bag, and the tail part of the first air bag is provided with a first valve.

Furthermore, a second transition cabin is arranged on the second shell, a second temperature and humidity sensor is arranged on the inner side of the second transition cabin, and the second temperature and humidity sensor is electrically connected with the microcontroller; and two sides of the second transition cabin are respectively provided with a second air bag, and the tail part of the second air bag is provided with a second valve.

Furthermore, a first fixed seat is arranged at the tail part of the first air bag and connected with the first shell; the second strain gauge is arranged on the outer side of the first air bag, the second strain sensor is arranged on the side wall of the first fixing seat, the second strain gauge is electrically connected with the second strain sensor, and the second strain sensor is electrically connected with the microcontroller.

Furthermore, a second fixed seat is arranged at the tail part of the second air bag and connected with the second shell; the outer side of the second air bag is provided with a third strain gauge, the side wall of the second fixing seat is provided with a third strain sensor, the third strain gauge is electrically connected with the third strain sensor, and the third strain sensor is electrically connected with the microcontroller.

Further, audible-visual annunciator includes first audible-visual annunciator and second audible-visual annunciator, and first audible-visual annunciator is located left side concave part top, and second audible-visual annunciator is located right side concave part bottom, and first audible-visual annunciator and second audible-visual annunciator all with microcontroller and power electric connection.

The utility model has the advantages that:

(1) The device can be applied to the leakage monitoring of pipeline seam crossing, and the device can pass through the long-range intelligent terminal control personnel of reminding of thing networking when detecting abnormal conditions, can reduce artifical tour, the material resources of using manpower sparingly.

(2) The device is provided with the multilayer response of meeting an emergency, detects comprehensively in time, and the test mode is applicable to most of gas and liquid pipeline simultaneously, and the practicality is strong.

(3) The device is equipped with audible-visual annunciator and reports to the police, and the maintainer of being convenient for seeks the leakage point position to judge the condition of revealing, so that in time overhaul, prevent that the pipeline from continuously leaking.

(4) The device is equipped with the gasbag for temporary storage prevents that poisonous and harmful gas or liquid from causing the pollution to external environment, can discharge the gas or the liquid of temporary storage through the valve after the maintenance, and the unified collection, the security is good.

Drawings

Fig. 1 is a schematic view of the overall structure of the gas and liquid leakage detection device for the delivery pipe of the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is an enlarged schematic view of a portion B in fig. 1.

The reference signs explain:

1-a first shell, 2-a second shell, 3-a clamping piece, 4-a hollow groove, 5-a first strain sheet, 6-a first strain sensor, 7-a microcontroller, 8-a first audible and visual alarm, 9-a second audible and visual alarm, 10-a power supply, 11-a first transition cabin, 12-a first temperature and humidity sensor, 13-a first air bag, 14-a first valve, 15-a second transition cabin, 16-a second temperature and humidity sensor, 17-a second air bag, 18-a second valve, 19-a first fixed seat, 20-a second strain sheet, 21-a second fixed seat, 22-a third strain sheet and 23-a sealing ring.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and the present invention is not limited to the specific embodiments disclosed below.

The gas and liquid leakage detection device for the conveying pipeline as shown in fig. 1 to 3 comprises a first shell 1, a second shell 2 and a clamping piece 3, wherein the first shell 1 and the second shell 2 are arc-shaped, flanges are arranged on two sides of the first shell 1 and the second shell 2, the clamping piece 3 is two concave pieces, and the two concave pieces are respectively sleeved on the flanges on the two sides and are connected with the first shell 1 and the second shell 2 through bolts; when the device is used, the device is sleeved on the outer side of a conveying pipeline, and the sealing rings 23 are arranged at the edges of the first shell 1 and the second shell 2, so that a sealing cavity is formed among the first shell 1, the second shell 2 and the conveying pipeline. An empty slot 4 is formed in each of the first shell 1 and the second shell 2, a layer of first strain gauge 5 is arranged on the outer side of the empty slot 4, a closed cavity is formed between the first strain gauge 5 and the empty slot 4, a first strain sensor 6 is arranged on the inner side of the empty slot 4, and the first strain sensor 6 is electrically connected with the first strain gauge 5; the outside of joint spare 3 is equipped with microcontroller 7, audible-visual annunciator and power 10, and power 10 is small-size battery for each device power supply for the device, first strain perception ware 6 and audible-visual annunciator all with microcontroller 7 electric connection, first strain perception ware 6, audible-visual annunciator and microcontroller 7 all with power 10 electric connection simultaneously.

A first transition cabin 11 is arranged on the first shell 1, a first temperature and humidity sensor 12 is arranged on the inner side of the first transition cabin 11, and the first temperature and humidity sensor 12 is electrically connected with the microcontroller 7; two sides of the first transition cabin 11 are respectively provided with a first air bag 13, and the tail part of the first air bag 13 is provided with a first valve 14. The tail part of the first air bag 13 is also provided with a first fixed seat 19, and the first fixed seat 19 is connected with the first shell 1; the outer side of the first air bag 13 is provided with a second strain gauge 20, the side wall of the first fixing seat 19 is provided with a second strain sensor, the second strain gauge 20 is electrically connected with the second strain sensor, and the second strain sensor is electrically connected with the microcontroller 7 and the power supply 10.

A second transition cabin 15 is arranged on the second shell 2, a second temperature and humidity sensor 16 is arranged on the inner side of the second transition cabin 15, and the second temperature and humidity sensor 16 is electrically connected with the microcontroller 7; two sides of the second transition cabin 15 are respectively provided with a second air bag 17, and the tail part of the second air bag 17 is provided with a second valve 18. The tail part of the second air bag 17 is also provided with a second fixed seat 21, and the second fixed seat 21 is connected with the second shell 2; a third strain gauge 22 is arranged on the outer side of the second air bag 17, a third strain sensor is arranged on the side wall of the second fixing seat 21, the third strain gauge 22 is electrically connected with the third strain sensor, and the third strain sensor is electrically connected with the microcontroller 7 and the power supply 10. Wherein, integrated information acquisition module and communication module in the perception ware that meets an emergency, information acquisition module is used for gathering the deformation information of individual foil gage, and communication module is used for transmitting the information of gathering for microcontroller 7.

In this embodiment, audible and visual alarm includes first audible and visual alarm 8 and second audible and visual alarm 9, and first audible and visual alarm 8 is located left side concave part top, and second audible and visual alarm 9 is located right side concave part bottom, first audible and visual alarm 8 and second audible and visual alarm 9 all with microcontroller 7 and power 10 electric connection. Wherein, audible-visual annunciator is stroboscopic audible-visual annunciator, can send stroboscopic light and beep simultaneously, can mark the pipeline and reveal the position, plays the suggestion effect to the maintainer.

During the use, establish the device cover in the pipeline outside and with joint spare 3 and first casing 1 and second casing 2 fastening connection, the change of the sealed cavity internal gas pressure of real-time supervision device between first casing 1 and the second casing 2 of first foil gage 5, first strain perception ware 6, first temperature and humidity sensor 12 and second temperature and humidity sensor 16 in the device, humiture. If the gas conveying pipeline leaks, gas in the pipeline enters the sealed cavity, the first strain gauge 5 is deformed under the influence of pressure change, and the first strain sensor 6 acquires a deformation signal and transmits the deformation signal to the microcontroller 7; if the liquid conveying pipeline leaks, and after liquid in the pipeline enters the sealed cavity, the first strain gauge 5 deforms, and the first temperature and humidity sensor 12 or the second temperature and humidity sensor 16 can detect temperature and humidity changes and transmit signals to the microcontroller 7; after the microcontroller 7 receives the signal, the leakage information of the conveying pipeline is transmitted to the remote monitoring terminal to inform the staff, and the first audible and visual alarm 8 is controlled to give out stroboscopic light and buzzing sound for warning.

The first air bag 13 arranged on the first shell 1 and the second air bag 17 arranged on the second shell 2 can play a role of temporary storage when leakage occurs so as to prevent the pollution of toxic and harmful gas or liquid to the external environment; meanwhile, the second strain gauge 20 arranged at the tail part of the first air bag 13 and the third strain gauge 22 arranged at the tail part of the second air bag 17 can continuously monitor the leakage condition, and the monitored leakage information is transmitted to the remote monitoring terminal through the second strain sensor, the third strain sensor and the microcontroller 7. If the deformation signal of the second strain gauge 20 or the third strain gauge 22 exceeds the preset threshold, the microcontroller 7 receives the signal and controls the second audible and visual alarm 9 to emit stroboscopic light and buzzing sound warning, which indicates that the leakage condition is serious and needs to be maintained as soon as possible; maintenance personnel can carry out preliminary snap judgments to pipeline's the condition of revealing according to device both sides audible-visual annunciator's state before the maintenance, are favorable to the safety of maintenance work to go on. The valves arranged at the tail parts of the first air bag 13 and the second air bag 17 are used for discharging and uniformly collecting temporarily stored gas or liquid; when necessary, water or other buffer solvents can be filled into the air bag through the valve, so that the safety of maintenance work is guaranteed. The device symmetry sets up, installation and use easy operation, and the device both had been applicable to gas transmission pipeline's the detection of revealing, also was applicable to liquid transmission pipeline's the detection of revealing.

Claims

1. A gas and liquid leakage detection device for a conveying pipeline comprises a first shell, a second shell and a clamping piece, and is characterized in that the first shell and the second shell are arc-shaped, flanges are arranged on two sides of the first shell and the second shell respectively, the clamping piece is two concave pieces, the two concave pieces are sleeved on the flanges on the two sides respectively and are connected with the first shell and the second shell through bolts; the first shell and the second shell are internally provided with an empty slot, a layer of first strain gauge is arranged on the outer side of the empty slot, a closed cavity is formed between the first strain gauge and the empty slot, and a first strain sensor is arranged on the inner side of the empty slot and is electrically connected with the first strain gauge; the joint spare outside is equipped with microcontroller, audible-visual annunciator and power, first strain perception ware and audible-visual annunciator all with microcontroller electric connection, first strain perception ware, audible-visual annunciator and microcontroller all with power electric connection simultaneously.

2. The gas and liquid leakage detection device for the delivery pipeline as recited in claim 1, wherein a first transition chamber is provided on the first housing, a first temperature and humidity sensor is provided inside the first transition chamber, and the first temperature and humidity sensor is electrically connected to the microcontroller; two sides of the first transition cabin are respectively provided with a first air bag, and the tail part of the first air bag is provided with a first valve.

3. The gas and liquid leakage detection device for the delivery pipeline according to claim 1, wherein a second transition cabin is arranged on the second shell, a second temperature and humidity sensor is arranged on the inner side of the second transition cabin, and the second temperature and humidity sensor is electrically connected with the microcontroller; and two sides of the second transition cabin are respectively provided with a second air bag, and the tail part of the second air bag is provided with a second valve.

4. The gas and liquid leakage detection device for the delivery pipeline according to claim 2, wherein a first fixing seat is arranged at the tail part of the first air bag, and the first fixing seat is connected with the first shell; the second strain gauge is arranged on the outer side of the first air bag, the second strain sensor is arranged on the side wall of the first fixing seat, the second strain gauge is electrically connected with the second strain sensor, and the second strain sensor is electrically connected with the microcontroller.

5. The gas and liquid leakage detection device for the delivery pipe according to claim 3, wherein a second fixing seat is provided at a tail part of the second airbag, and the second fixing seat is connected with the second housing; the outer side of the second air bag is provided with a third strain gauge, the side wall of the second fixing seat is provided with a third strain sensor, the third strain gauge is electrically connected with the third strain sensor, and the third strain sensor is electrically connected with the microcontroller.

6. The gas and liquid leakage detection device for the delivery pipe according to claim 1, wherein the audible and visual alarm comprises a first audible and visual alarm and a second audible and visual alarm, the first audible and visual alarm is located at the top of the left concave member, the second audible and visual alarm is located at the bottom of the right concave member, and the first audible and visual alarm and the second audible and visual alarm are both electrically connected with the microcontroller and the power supply.