CN216483709U

CN216483709U - Residential natural gas leakage detection device based on temperature change recognition technology

Info

Publication number: CN216483709U
Application number: CN202122479493.XU
Authority: CN
Inventors: 王凡; 陈婷婷; 王佩广
Original assignee: Beijing Gas Group Co Ltd
Current assignee: Beijing Gas Group Co Ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-05-10
Anticipated expiration: 2031-10-14

Abstract

The utility model discloses a house natural gas leakage detection device based on a temperature change recognition technology, which comprises a connecting pipeline connected with an indoor gas pipeline, wherein an insulating mounting seat is hermetically nested on the peripheral wall of the middle part of the connecting pipeline, the lower half part of the insulating mounting seat extends into the connecting pipeline, temperature sensors which are arranged in a geometric array manner are mounted on the lower end surface of the lower half part of the insulating mounting seat, a shell is hermetically nested on the peripheral wall of the upper half part of the insulating mounting seat, the shell is provided with a mounting cavity, a battery and a circuit board electrically connected with the battery are fixed in the mounting cavity of the shell, and the temperature sensors penetrate through the insulating mounting seat through leads to be connected with the circuit board. The novel water-saving valve has the advantages of simple structure, small volume, convenience in installation, low manufacturing cost, long service life and suitability for large-area popularization.

Description

Residential natural gas leakage detection device based on temperature change recognition technology

Technical Field

The utility model relates to the technical field of gas leakage detection, in particular to a residential natural gas leakage detection device based on a temperature change identification technology.

Background

At present, a common indoor leakage alarm device is a combustible gas leakage alarm, the product can detect indoor gas concentration, when the concentration reaches an alarm threshold value, through sound and light alarm, part of model products have a remote communication function, and can send alarm information to maintenance personnel. However, the product adopts a semiconductor sensor, is easily interfered by components such as alcohol, acetic acid, steam and the like in the air, has larger drift and failure probability, and has more cases of false alarm and failure. And this product needs the gas to leak the diffusion can detect after reaching certain degree in indoor, and this product sensor production technology is comparatively complicated, and manufacturing cost is high. The current temperature sensor based on temperature change recognition technology preparation can record gas temperature data, is aided with current ripe communication technology and realizes gas temperature data teletransmission, but when it was used in gas leakage detection technical field, the great unsuitable indoor installation of leak detection device volume needs installation components and parts more difficult installation and change, receives external environment interference for a long time and leads to life to shorten.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems of large volume, complex installation and short service life of the conventional gas pressure leakage detection device, the utility model innovatively provides a residential natural gas leakage detection device based on a temperature change identification technology, which has the advantages of simple structure, convenience in installation, low manufacturing cost and long service life.

In order to achieve the technical purpose, the utility model discloses a residential natural gas leakage detection device based on a temperature change identification technology, which comprises a connecting pipeline connected with an indoor gas pipeline, wherein an insulating mounting seat is hermetically nested on the peripheral wall of the middle part of the connecting pipeline, the lower half part of the insulating mounting seat extends into the connecting pipeline, temperature sensors which are arranged in a geometric array mode are mounted on the lower end face of the lower half part of the insulating mounting seat, a shell is hermetically nested on the peripheral wall of the upper half part of the insulating mounting seat, the shell is provided with a mounting cavity, a battery and a circuit board which is electrically connected with the battery are fixed in the mounting cavity of the shell, and the temperature sensors penetrate through the insulating mounting seat through leads to be connected with the circuit board.

Furthermore, the utility model relates to a residential natural gas leakage detection device based on a temperature change identification technology, wherein the upper half part of the insulating mounting seat is a flange which extends outwards to form, the lower end surface of the flange is fixedly connected with the peripheral wall of the connecting pipeline in a sealing manner, the shell is embedded on the peripheral wall of the flange in a sealing manner, and the lower end of the shell is fixedly connected with the peripheral wall of the connecting pipeline in a sealing manner.

Furthermore, the residential natural gas leakage detection device based on the temperature change identification technology is characterized in that the number of the temperature sensors is four, and the four temperature sensors are uniformly arranged at intervals along the axial direction of the insulating mounting seat.

Furthermore, the utility model relates to a residential natural gas leakage detection device based on a temperature change identification technology, wherein a partition plate is transversely arranged in a shell, the partition plate divides a mounting cavity of the shell into an upper mounting cavity and a lower mounting cavity, a battery is positioned in the upper mounting cavity and is fixed on the partition plate through first support columns distributed on two sides of the lower end of the battery, a circuit board is positioned in the lower mounting cavity and is fixed on an insulating mounting seat through second support columns distributed on two sides of the circuit board.

Furthermore, the residential natural gas leakage detection device based on the temperature change identification technology is characterized in that the space in the upper mounting cavity of the shell except the battery and the first support column and the space in the lower mounting cavity of the shell except the circuit board and the second support column are filled with pouring sealant.

Compared with the prior art, the utility model has the following differences: sealed nested insulating mount pad on the middle part periphery wall of connecting tube lets the lower half of insulating mount pad stretch into the connecting tube in, installs the temperature sensor who is the geometric array and arranges on the lower half lower extreme terminal surface of insulating mount pad, and sealed nested has a shell on the first periphery wall of insulating mount pad, is fixed with the battery and is connected with the circuit board of battery electricity in the installation cavity of shell, and temperature sensor passes insulating mount pad through the wire and is connected with the circuit board. The device has the advantages of simple structure, small volume, convenient installation, low manufacturing cost, long service life and suitability for large-area popularization and is based on the temperature change identification technology. In practical application, the installation can be completed only by connecting two ends of the connecting pipeline into the indoor gas pipeline; the manufacturing cost is low, the volume is small, and the device can be widely applied to indoor gas users; the structure is simple and the preparation and the production are easy; the temperature sensor, the battery and the circuit board are integrally packaged, so that the temperature sensor, the battery and the circuit board are not easily interfered by the external environment, and the service life is prolonged; and is suitable for large-area popularization and application.

Drawings

Fig. 1 is a schematic structural diagram of a residential natural gas leakage detection device based on a temperature change identification technology according to the present invention.

Detailed Description

The present invention will be explained and explained in detail with reference to the accompanying drawings.

As shown in fig. 1, the utility model discloses a residential natural gas leakage detection device based on a temperature change identification technology, which specifically comprises a connecting pipeline 1 connected with an indoor gas pipeline, wherein an insulating mounting seat 2 is hermetically nested on the peripheral wall of the middle part of the connecting pipeline 1, the lower half part of the insulating mounting seat 2 extends into the connecting pipeline 1, temperature sensors 3 which are arranged in a geometric array are mounted on the lower end surface of the lower half part of the insulating mounting seat 2, a shell 4 is hermetically nested on the peripheral wall of the upper half part of the insulating mounting seat 2, the shell 4 is provided with a mounting cavity, a battery 5 and a circuit board 6 which is electrically connected with the battery 5 are fixed in the mounting cavity of the shell 4, the battery 5 provides electric energy for the circuit board 6, and the temperature sensors 3 penetrate through the insulating mounting seat 2 through leads and are connected with the circuit board 6. Since the circuit board 6 mainly comprises a signal amplifying and filtering module, a microcomputer module, a communication module, etc. as the prior art, the detailed connection structure thereof will not be described in detail herein.

The temperature sensor 3 is arranged on the lower end face of the insulating mounting seat 2 and is positioned in the connecting pipeline, after the indoor gas pipeline is connected, the temperature sensor 3 can be completely isolated from the external environment, the interference of components such as alcohol, acetic acid and steam in the air can be eliminated, the production cost is low by arranging the temperature sensor 3, and the temperature sensor can be widely applied to indoor gas users, particularly large-quantity residential users. When in actual use, the installation can be completed only by connecting the two ends of the connecting pipeline into the indoor gas pipeline. When the gas flows through the leakage detection device, the array formed by the temperature sensors 3 can transmit the temperature detected by the temperature sensors 3 at different positions to the circuit board 6 in real time, and according to the temperature change condition, the temperature is compared with the output value of the temperature array when the normal gas appliance is used, whether the flow of the gas in the indoor pipeline is abnormal or not is judged, and then whether the gas leakage occurs or not is judged. And the leakage information is transmitted to maintenance personnel and users of individual gas property places through a communication module in a remote transmission mode, so that the leakage is found and treated in time. The manufacturing cost is low, the volume is small, and the device can be widely applied to indoor gas users; the structure is simple and the preparation and the production are easy; the temperature sensor 3, the battery 5 and the circuit board 6 are integrally packaged, so that the temperature sensor is not easily interfered by the external environment, and the service life is prolonged; and is suitable for large-area popularization and application.

As shown in fig. 1, in order to ensure the sealing performance of the leak detector, the upper half of the insulative mounting base 2 is designed as a flange 21 extending outward, the lower end surface of the flange 21 is fixedly connected to the outer peripheral wall of the connecting pipe 1 in a sealing manner, the housing 4 is fitted onto the outer peripheral wall of the flange 21 in a sealing manner, and then the lower end of the housing 4 is fixed to the outer peripheral wall of the connecting pipe 1 in a sealing manner, and the housing 4 and the connecting pipe 1 can be fixed by welding. Can form two-layer sealing through above setting, it is sealed to form the first layer between insulating mount pad 2 and the connecting tube 1 promptly, forms the second floor between shell 4 and the connecting tube 1 and seals, guarantees leak detection device's leakproofness through this two-layer seal structure, and the holistic reliability of hoisting device, and then reaches increase of service life's purpose.

On the basis of the above-described embodiment, as a specific embodiment, the temperature sensors 3 are specifically provided in four in the present embodiment, and the four temperature sensors 3 are provided at regular intervals in the axial direction of the insulative mounting base 2. And then temperature detection at different positions is formed to obtain a temperature array, and a data basis is provided for subsequent judgment of whether the gas leakage phenomenon occurs.

On the basis of the above-mentioned embodiments, as a specific embodiment, in order to ensure the electrical safety distance between the battery 5 and the circuit board 6, a partition plate 41 is transversely disposed in the housing 4, the partition plate 41 divides the mounting cavity of the housing 4 into an upper mounting cavity and a lower mounting cavity, the battery 5 is disposed in the upper mounting cavity and the battery 5 is fixed on the partition plate 41 through the first support columns 51 distributed on both sides of the lower end of the battery 5, the circuit board 6 is disposed in the lower mounting cavity and the circuit board 6 is fixed on the insulating mounting base 2 through the second support columns 61 distributed on both sides of the circuit board 6. And the space in the upper installation cavity of the shell 4 except the battery 5 and the first support column 51 and the space in the lower installation cavity of the shell 4 except the circuit board 6 and the second support column 61 are filled with the pouring sealant 7, and the pouring sealant 7 can be epoxy glue or electronic sealant such as silica gel. Make circuit board 6 and battery 5 can guarantee sufficient redundant contact through above setting up, improve product inner structure's stability, prevent that the contact failure condition that external force impact caused from appearing, and then reach reinforcing reliability, increase of service life's purpose.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and simplifications made in the spirit of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a house natural gas leakage detection device based on temperature variation recognition technology, includes connecting tube (1) of being connected with indoor gas pipeline, its characterized in that: sealed nested an insulating mount pad (2) that has on the middle part periphery wall of connecting tube (1), in the lower half of insulating mount pad (2) stretched into connecting tube (1), installed on the terminal surface under the lower half of insulating mount pad (2) and be the temperature sensor (3) that the geometric array arranged, sealed nested a shell (4) on the first periphery wall of insulating mount pad (2), shell (4) have an installation cavity, and the installation cavity of shell (4) is fixed with battery (5) and circuit board (6) of being connected with battery (5) electricity, temperature sensor (3) pass insulating mount pad (2) through the wire and are connected with circuit board (6).

2. The residential natural gas leakage detection apparatus based on temperature change recognition technology according to claim 1, characterized in that: the upper half part of the insulating mounting seat (2) is a flange (21) formed by extending outwards, the lower end face of the flange (21) is fixedly connected with the peripheral wall of the connecting pipeline (1) in a sealing mode, the shell (4) is nested on the peripheral wall of the flange (21) in a sealing mode, and the lower end of the shell (4) is fixed on the peripheral wall of the connecting pipeline (1) in a sealing mode.

3. The residential natural gas leakage detection apparatus based on temperature change recognition technology according to claim 2, characterized in that: the temperature sensors (3) are arranged in four, and the four temperature sensors (3) are uniformly arranged at intervals along the axis direction of the insulating mounting seat (2).

4. The residential natural gas leakage detection apparatus based on temperature change recognition technology according to claim 3, characterized in that: transversely be provided with a division board (41) in shell (4), division board (41) divide into installation cavity and lower installation cavity with the installation cavity of shell (4), battery (5) are located the installation cavity and battery (5) are fixed on division board (41) through first support column (51) that distribute in battery (5) lower extreme both sides, circuit board (6) are located down the installation cavity and circuit board (6) are fixed on insulating mount pad (2) through second support column (61) that distribute in circuit board (6) both sides.

5. The residential natural gas leakage detection apparatus based on temperature change recognition technology according to claim 4, characterized in that: the upper mounting cavity of the shell (4) is filled with pouring sealant (7) except for the remaining space of the battery (5) and the first supporting column (51) and the remaining space of the lower mounting cavity of the shell (4) except for the circuit board (6) and the second supporting column (61).