CN219798644U

CN219798644U - Intelligent gas leak detector

Info

Publication number: CN219798644U
Application number: CN202320588937.XU
Authority: CN
Inventors: 赵军委; 王文想; 张万杰; 尤英俊; 冯俊杰; 李河山; 姚婷婷; 张龙; 杜荣杰; 辛俊萱; 刘广源; 余远青
Original assignee: Shenzhen Deep Combustion Gas Technology Research Institute; Shenzhen Gas Corp Ltd
Current assignee: Shenzhen Deep Combustion Gas Technology Research Institute; Shenzhen Gas Corp Ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-10-03
Anticipated expiration: 2033-03-17

Abstract

The utility model relates to the technical field of gas overhaul equipment, and discloses an intelligent gas leak detector, which comprises: a housing; the electric inflator pump is arranged in the shell; a pressure sensor disposed within the housing; the air pipe joint penetrates through the outer wall of the shell and is used for connecting an external pipeline to be tested; the air passage pipeline is arranged in the shell and is communicated with the electric inflator pump, the pressure sensor and the air pipe joint. The problems that in the prior art, equipment is inconvenient to carry, data reading is easy to make mistakes and operation is complicated due to the fact that a water column meter is adopted for leak detection are solved.

Description

Intelligent gas leak detector

Technical Field

The utility model relates to the technical field of gas overhaul equipment, in particular to an intelligent gas leak detector.

Background

When the urban gas enterprise is in ignition for new user gas supply, in order to ensure that the customer uses gas safety to carry out a leak hunting pressure test to the upstream pipeline of gas table, the traditional mode uses ordinary water column table (U type manometer) to carry out leak hunting, is connected to the three-way pipe with U type manometer through the rubber tube, is being connected to the pipeline that awaits measuring and is inflated on the bellows through the three-way pipe, carries out manual inflation to the pipeline that awaits measuring through the bellows that inflates, then observes whether the liquid column of U type manometer changes.

The existing water column meter is generally in a long strip shape, is large in size and inconvenient to carry, and pressure measurement data are required to be read by a user and are easy to make mistakes. During measurement, the leather bag is required to be inflated manually, a user is required to record the pressure measurement process manually, the process operation is complex, and the use is inconvenient.

Accordingly, the prior art is still in need of improvement and development.

Disclosure of Invention

In view of the defects of the prior art, the utility model aims to provide an intelligent gas leak detector, which solves the problems of inconvenient equipment carrying, error-prone data reading and complex operation caused by leak detection by adopting a water column meter in the prior art.

The technical scheme of the utility model is as follows:

an intelligent gas leak detector comprising: a housing;

the electric inflator pump is arranged in the shell;

a pressure sensor disposed within the housing;

the air pipe joint penetrates through the outer wall of the shell and is used for connecting an external pipeline to be tested;

the air passage pipeline is arranged in the shell and is communicated with the electric inflator pump, the pressure sensor and the air pipe joint.

Optionally, the gas circuit pipeline includes: one end of the first connecting pipe is connected with the electric inflator;

the second connecting pipe, one end of the second connecting pipe connects the pressure sensor;

the first end and the second end of the three-way joint are respectively connected with the other end of the first connecting pipe and the other end of the second connecting pipe;

and

and one end of the third connecting pipe is connected with the third end of the three-way joint, and the other end of the third connecting pipe is connected with the air pipe joint.

Optionally, the tracheal tube comprises: the joint body penetrates through the outer wall of the shell;

the connector is arranged at one end of the connector main body, which is away from the shell, and is connected with the cock valve through a rubber tube and connected with a pipeline to be tested through the cock valve;

the joint main body is provided with a sleeve joint groove which is positioned at one side of the joint;

the rubber tube is sleeved on the connecting head and extends into the sleeving groove.

Optionally, the connector is tapered with a smaller cross-sectional diameter at an end distal from the housing than at an end proximal to the housing.

Optionally, a clamping table is arranged on the connector main body;

the outer wall of the shell is provided with a clamping hole, and the clamping table is fixedly embedded in the clamping hole;

a sleeve joint groove is formed between the clamping and embedding table and the connector.

Optionally, a control board is arranged in the shell, a controller is arranged on the control board, and the controller is electrically connected with the electric inflator pump and the pressure sensor;

the display screen is arranged on the shell and is electrically connected with the controller to display the air pressure data detected by the pressure sensor.

Optionally, the intelligent gas leak detector further comprises: the cloud transmitter is arranged in the shell, is electrically connected with the controller and is used for uploading detected air pressure data to the background server; and

the wireless communicator is arranged in the shell, is electrically connected with the controller and is used for connecting the mobile terminal in a wireless communication way.

Optionally, a battery, an alarm and a switch are also arranged in the shell;

the battery is electrically connected with the controller, the alarm is electrically connected with the controller, and the switch is electrically connected with the controller.

Optionally, a lower groove is formed in the shell, and the switch is located in the lower groove and penetrates through the outer wall of the shell.

Optionally, the electric inflator pump is a brushless diaphragm air pump;

the pressure sensor is a diffused silicon pressure sensor.

The beneficial effects are that: compared with the prior art, the intelligent gas leakage detector provided by the utility model has the advantages that the electric inflator pump is used for automatically inflating, the pressure sensor is used for detecting the air pressure in the pipeline to be detected, the automatic recording is realized, the operation is simple and convenient, the electronization and the automation of the indoor gas pipeline detection are realized, the intelligent gas leakage detector can be used for the indoor gas pipeline air tightness test and the intensity test, and the informatization and the intellectualization of the pressure maintaining detection work are improved. And the electric inflator pump and the pressure sensor are integrated in the shell, so that the simplification of the detection equipment is realized, and the portability is improved. The pressure sensor directly measures the air pressure data, so that the detection accuracy is ensured.

Drawings

FIG. 1 is a schematic diagram of an intelligent gas leak detector in accordance with an embodiment of the utility model;

FIG. 2 is an exploded view of an intelligent gas leak detector according to an embodiment of the utility model;

FIG. 3 is a schematic diagram of the internal architecture of an intelligent gas leak detector according to an embodiment of the utility model;

fig. 4 is a schematic block diagram of an intelligent gas leak detector in accordance with an embodiment of the utility model.

The reference numerals in the drawings: 10. a housing; 11. a clamping hole; 12. a lower groove; 13. an upper cover; 14. a bottom case; 20. an electric inflator; 30. a pressure sensor; 40. an air pipe joint; 41. a joint body; 42. a connector; 43. a socket groove; 44. a clamping and embedding table; 50. an air path pipeline; 51. a first connection pipe; 52. a second connection pipe; 53. a three-way joint; 54. a third connection pipe; 60. a control board; 61. a controller; 62. a display screen; 63. a cloud transmitter; 64. a wireless communicator; 65. a battery; 66. an alarm; 67. and (3) a switch.

Detailed Description

The utility model provides an intelligent gas leakage detector and a protective shell, and the utility model is optionally described in detail below with reference to the accompanying drawings and examples in order to make the purpose, technical scheme and effect of the utility model clearer and more definite. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The specific structure of this embodiment is as follows:

as shown in fig. 1 and 2, this embodiment provides an intelligent gas leak detector, which mainly includes: the device comprises a shell 10, an electric inflator 20, a pressure sensor 30, an air pipe joint 40 and an air passage pipeline 50. The housing 10 in this embodiment adopts a square structure, and the size of the housing 10 is 120×100×40 (mm), so that miniaturization of the device can be achieved and portability can be improved. The housing 10 has a mounting cavity formed therein, the electric inflator 20 is disposed in the mounting cavity in the housing 10, and is inflated after being energized, and the pressure sensor 30 is disposed in the mounting cavity in the housing 10 and is capable of detecting pressure. The air tube fitting 40 penetrates through the outer wall of the housing 10 such that the front end of the air tube fitting 40 is located outside the housing 10 and the rear end is located inside the housing 10. The front end of the air pipe joint 40 is used for connecting an external pipeline to be tested, and the air path pipeline 50 is arranged in the shell 10 and is communicated with the electric inflator 20, the pressure sensor 30 and the air pipe joint 40.

When it is necessary to detect whether the pressure is missing or to perform a pressure test. The air pipe joint 40 is connected to a pipeline to be detected, then the intelligent gas leak detector is started, the electric inflator 20 works first, the pipeline to be detected is inflated through the air path pipeline 50, air with certain pressure is injected into the pipeline to be detected, at the moment, the pressure sensor 30 can monitor the pressure of the injected air through the air path pipeline 50, when the set pressure is reached, the pressing action of the electric inflator 20 is stopped, the electric inflator 20 is automatically closed, and the pressing is completed. By communicating the air path conduit 50 with the conduit under test, the pressure sensor 30 can detect the pressure of the conduit under test, for example, once at predetermined intervals, and if the pressure of the conduit under test is not changed greatly, it indicates that the pressure in the conduit is stable and no air leakage occurs. Therefore, the pressure sensor 30 is used for detecting the air pressure in the pipeline to be detected, the automatic recording is realized, the operation is simple and convenient, the electronization and automation of the indoor air pipeline detection are realized, the indoor air pipeline detection device can be used for indoor air pipeline air tightness test and intensity test, and the informatization and intellectualization of pressure maintaining detection work are improved. And the electric inflator 20 and the pressure sensor 30 are integrated in the housing 10, so that the simplification of detection equipment is realized, and the portability is improved. The pressure sensor 30 directly measures the air pressure data, and the accuracy of detection is ensured.

The air path pipe 50 in this embodiment specifically includes: a first connection pipe 51, a second connection pipe 52, a three-way joint 53, and a third connection pipe 54. The electric inflator 20 has an air inlet end and an air outlet end, the air inlet end is used for being connected to the outside of the housing 10, the air outlet end is communicated with one end of the first connecting pipe 51, when the electric inflator 20 works, air is sent to the air outlet end from the air inlet end in a unidirectional mode, then enters the first connecting pipe 51 from the air outlet end, inflation pressurization in a pipeline is achieved, in order to achieve unidirectional air supply of the air outlet end, a one-way valve can be arranged at the air outlet end, and therefore after the electric inflator 20 is closed, air in the first connecting pipe 51 cannot flow out reversely from the air outlet end, and air pressure stability in the pipeline is guaranteed. The detection end of the pressure sensor 30 is communicated with one end of the second connecting pipe 52, and the connection part can be sealed by a sealing ring, so that the air pressure in the second connecting pipe 52 can be detected by the pressure sensor 30. The three-way connector 53 has three mutually communicated connection ends, namely a first end, a second end and a third end. Wherein the first end and the second end are respectively connected to the other end of the first connection pipe 51 and the other end of the second connection pipe 52, the third end of the three-way joint 53 is connected to one end of the third connection pipe 54, the other end of the third connection pipe 54 is connected to the rear end of the air pipe joint 40, and the connection is sealed to prevent air leakage. Thus, the air pipe joint 40 is communicated with the air passage pipeline 50, and the electric inflator pump 20 is used for inflating the pipeline to be tested, and the air pressure in the pipeline to be tested can be detected through the pressure sensor 30 after inflation is completed. The simple gas circuit structure is adopted to realize the gas leakage detection function, occupies a smaller installation cavity area, is beneficial to realizing the miniaturization of the whole intelligent gas leak detector and improves portability.

As shown in fig. 2 and 3, the tracheal tube 40 in this embodiment specifically includes: the joint body 41 and the joint 42. The joint body 41 penetrates through the outer wall of the shell 10 so as to connect the inside and the outside of the shell 10, the joint 42 is arranged at one end (front end) of the joint body 41, which is away from the shell 10, the joint 42 is connected with a rubber pipe, a cock valve is connected through the rubber pipe, and the joint 42 is connected with a pipeline to be tested through the cock valve, and as the joint 42 is larger than the joint body 41, a sleeve joint groove 43 is formed on the joint body 41, and the sleeve joint groove 43 is positioned at the rear side of the joint 42; when the rubber tube is connected to the connector 42, the rubber tube opening is enlarged by extrusion of the connector 42, after the rubber tube is sleeved on the connector 42, the rubber tube sleeve continues to extend into the sleeve groove 43, the rubber tube at the sleeve groove 43 is retracted and can be clung to the connector main body 41, the tightness of connection is ensured by the mode of matching the connector 42 and the rubber tube, and the rubber tube is not easy to separate from the tracheal tube connector 40 due to limit of the connector 42, so that the tracheal tube connector 40 is connected with a pipeline to be tested more firmly.

The connecting head 42 in this embodiment is tapered with a smaller cross-sectional diameter at the end remote from the housing 10 than at the end near the housing 10. When the connector 42 is connected with the rubber tube, the rubber tube is sleeved into the connector 42, the conical surface of the connector 42 can be used for guiding, so that the opening of the rubber tube is slowly swelled, and the whole connector 42 is sleeved, so that the rubber tube is greatly convenient to connect, after the rubber tube reaches the rear side of the connector 42, the rubber tube is positioned in the sleeve joint groove 43, the size is reduced, the opening of the rubber tube is contracted to be tightly attached to the tracheal joint 40, the stable connection of the tracheal joint 40 and the rubber tube is realized, and if the rubber tube is loose in the butt joint process, the rubber tube can be tightly tied on the sleeve joint groove 43 by using a binding belt or a clamping hoop.

As shown in fig. 2 and 3, in this embodiment, a clamping table 44 is disposed on a connector main body 41, the clamping table 44 is located at the rear side of the connector 42, a sleeve joint groove 43 is formed between the clamping table 44 and the connector 42, a clamping hole 11 is formed on the outer wall of the housing 10, the clamping table 44 is fixedly embedded in the clamping hole 11, in a specific structure, a clamping groove is formed on the outer edge of the clamping table 44, and the inner wall of the clamping hole 11 is clamped in the clamping groove, so that the clamping table 44 and the housing 10 are mounted, and through the structure, the quick mounting of the leak detector can be realized, and the tracheal connector 40 is not easy to loosen after being connected with the housing 10. The casing 10 may be divided into an upper cover 13 and a bottom casing 14, the upper cover 13 is connected to the bottom casing 14 by a screw, the clamping hole 11 is formed by connecting the upper cover 13 to the bottom casing 14, when in installation, the clamping table 44 is first embedded in a part of the clamping hole 11 on the bottom casing 14, and then the upper cover 13 is connected to the bottom casing 14, so that the inner wall of the other part of the clamping hole 11 on the upper cover 13 is clamped in the clamping table 44, thereby realizing the clamping fixation of the clamping table 44.

As shown in fig. 3 and 4, a control board 60 is disposed in the housing 10 in this embodiment, the control board 60 is a PCB circuit board, a controller 61 is disposed on the control board 60, and the controller 61 may be a single-chip microcomputer, for example, a 32-bit single-chip microcomputer (the single-chip microcomputer is responsible for initializing the whole device, storing preset parameters, and performing pressure test according to a set program). The controller 61 is electrically connected with the electric inflator 20 and the pressure sensor 30, and can control the start and stop of the electric inflator 20, the start and stop of the pressure sensor 30 and receive the pressure data detected by the pressure sensor 30 by the instruction of the controller 61. The casing 10 is further provided with a display screen 62, a display surface of the display screen 62 is exposed out of the upper surface of the casing 10, the display screen 62 is electrically connected with the controller 61, and an LCD dot matrix screen with a thickness of 128 x 64mm can be used for displaying the air pressure data detected by the pressure sensor 30. The controller 61 controls the components so as to realize automatic control, a preset program can be set in the singlechip, the electric inflator 20 can be automatically started to press to a preset pressure after the leak detector is started, and the pressure sensor 30 is automatically started to detect at intervals so as to detect whether the pipeline leaks. The display 62 can detect the detection result and the operation state so that the user can know the information in real time. The intelligent leak detector of this scheme can be used as the digital pressure tester at ordinary times, not only can leak hunting, can also test air feed pipeline static pressure and dynamic pressure data.

As shown in fig. 3 and 4, the intelligent gas leak detector in this embodiment further includes: the cloud transmitter 63 and the wireless communicator 64 have different functions. The cloud conveyor is arranged in the shell 10, is electrically connected with the controller 61, and is used for uploading detected air pressure data to the background server; specifically, the cloud transmitter 63 uses an NB-iot remote transmission module, which is an intelligent remote communication transmission system, and can be used for remote meter reading, and has wide application in the gas field. The single chip microcomputer is generally provided with a storage module, when the single chip microcomputer in the device is used for controlling, detected data can be automatically stored, the detected data can be uploaded to a background server for storage through the NB-iot remote transmission module, and analysis software on the background server can be combined for analyzing and tracing the pressure test time and the ignition data of an ignition person and also can be used for analyzing the engineering construction quality; the communication protocol between the device and the background can be modified according to the requirements of different platforms. The wireless communicator 64 is disposed in the housing 10, electrically connected to the controller 61, and used for wireless communication connection with the mobile terminal; specifically, the wireless communicator 64 uses a bluetooth module to communicate with an app on the mobile terminal. Thus, various parameters of the detection equipment can be set on the mobile terminal, the intelligent gas leak detector is controlled to execute the parameters, the mobile terminal can acquire detection data each time, and a user can monitor the detection process in real time.

As shown in fig. 3 and 4, a battery 65, an alarm 66 and a switch 67 are also provided in the housing 10 in the present embodiment. The battery 65 is electrically connected with the controller 61, the battery 65 can be a lithium battery 65, and the battery 65 can be charged through a usb interface (for example, the charging interface can be charged through 5V direct-current voltage of Type-C), the capacity of the battery 65 can be 3600maH, and the battery can continuously work for not less than 12 hours after being charged each time. The alarm 66 is electrically connected to the controller 61, and when the pressure value of the pipeline detected by the pressure sensor 30 is smaller and smaller, and the reduction speed is too fast, or the pressure is reduced to a preset warning value, the pipeline is judged to be leaked, otherwise, the pipeline is not leaked. When the pipeline leaks, alarm information is sent out through the alarm 66 to remind the user of paying attention. The alarm 66 may be an LED lamp or a buzzer. The switch 67 is electrically connected to the controller 61, and the switch 67 can control the start and stop of the whole controller 61.

The housing 10 in this embodiment is provided with a lower groove 12, and the switch 67 is located in the lower groove 12 and penetrates through the outer wall of the housing 10. The lower groove 12 is located the side of casing 10, and switch 67 adopts the switch 67 of push type, and switch 67 is located below the notch of lower groove 12, and lower groove 12 surrounds switch 67 like this, can avoid touching switch 67 by mistake in the in-process that is detecting and lead to detecting failure.

The electric inflator 20 in this embodiment is a brushless diaphragm air pump. The pressure sensor 30 is a diffused silicon pressure sensor 30; because the relative pressure of the measured pipeline is generally lower than 10KPa, and the relative atmospheric pressure is smaller, in order to ensure the measurement accuracy, the digital pressure sensor 30 selects the relative pressure sensor 30 with 0-10KPa according to the pressure of the low-pressure pipeline. Therefore, the measurement range of the diffused silicon pressure sensor 30 is 0-10KPa (which can be adjusted according to the need), and the measurement accuracy is less than or equal to 0.3% FS.

The detection process comprises the following steps:

when the air tightness test is carried out, the equipment is firstly connected to the pipeline to be detected through the rubber pipe and the cock valve, the switch 67 is opened so as to start the equipment, after the display screen 62 displays normally, the start button is pressed, and the equipment can be detected according to a set program.

The device starts the built-in electric inflator 20 first, injects air with a certain pressure into the test pipeline, stops pressing when the set pressure is reached, and automatically turns off the electric inflator 20.

After the pressurizing is finished, the controller 61 controls the pressure sensor 30 to test the pipeline pressure every 5 seconds, records pressure data, analyzes the recorded pressure data after the set test time (for example, 5 minutes), judges whether the pipeline to be tested has air leakage or not, and prompts a test result through the display screen 62 and the buzzer.

The test data can be uploaded to a background server through the built-in NB-iot remote transmission module, so that various data statistics and analysis can be conveniently carried out.

In summary, the intelligent gas leakage detector provided by the utility model has the advantages that the electric inflator pump 20 is used for automatically inflating, the pressure sensor 30 is used for detecting the air pressure in the pipeline to be detected, the automatic recording is realized, the operation is simple and convenient, the electronization and the automation of the indoor gas pipeline detection are realized, the intelligent gas leakage detector can be used for the indoor gas pipeline air tightness test and the intensity test, and the informatization and the intellectualization of the pressure maintaining detection work are improved. And the electric inflator 20 and the pressure sensor 30 are integrated in the housing 10, so that the simplification of detection equipment is realized, and the portability is improved. The pressure sensor 30 directly measures the air pressure data, and the accuracy of detection is ensured. In addition, the intelligent gas leak detector integrates the brushless micro diaphragm air pump (with the explosion-proof advantage), the pressure sensor 30, the NB-iot Internet of things module and other elements, can realize the functions of automatic inflation, pressure test, data recording, data uploading and the like, and has the advantages of automatic data reading and simple operation process when being convenient to carry.

It is to be understood that the utility model is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.

Claims

1. An intelligent gas leak detector, comprising: a housing;

the electric inflator pump is arranged in the shell;

a pressure sensor disposed within the housing;

the air pipe connector penetrates through the outer wall of the shell and is used for connecting an external pipeline to be tested;

2. The intelligent gas leak detector of claim 1, wherein the gas circuit conduit comprises: one end of the first connecting pipe is connected with the electric inflator;

the second connecting pipe, one end of the said second connecting pipe connects the said pressure sensor;

and

3. The intelligent gas leak detector of claim 2, wherein the gas line fitting comprises: the joint body penetrates through the outer wall of the shell;

the connector is arranged at one end of the connector main body, which is away from the shell, and is connected with the cock valve through a rubber tube and connected with the pipeline to be tested through the cock valve;

the joint body is provided with a sleeve joint groove which is positioned at one side of the joint head;

the rubber tube is sleeved on the connecting head and extends into the sleeve joint groove.

4. The intelligent gas leak detector of claim 3, wherein the connector is tapered with a smaller cross-sectional diameter at an end distal from the housing than at an end proximal to the housing.

5. The intelligent gas leak detector of claim 3, wherein the fitting body is provided with a snap-fit station;

a clamping hole is formed in the outer wall of the shell, and the clamping table is fixedly embedded in the clamping hole;

and a sleeving groove is formed between the clamping table and the connector.

6. The intelligent gas leak detector of claim 1, wherein a control board is disposed within the housing, the control board having a controller disposed thereon, the controller electrically connecting the electric inflator and the pressure sensor;

7. The intelligent gas leak detector of claim 6, wherein the intelligent gas leak detector further comprises: the cloud transmitter is arranged in the shell, is electrically connected with the controller and is used for uploading detected air pressure data to the background server; and

the wireless communicator is arranged in the shell, is electrically connected with the controller and is used for being connected with the mobile terminal in a wireless communication way.

8. The intelligent gas leak detector of claim 6, wherein a battery, an alarm and a switch are also disposed within the housing;

9. The intelligent gas leak detector of claim 8, wherein the housing defines a lower recess, and the switch is positioned within the lower recess and extends through an outer wall of the housing.

10. The intelligent gas leak detector of any one of claims 1-9, wherein the electric inflator is a brushless diaphragm air pump;

the pressure sensor is a diffused silicon pressure sensor.