CN213177731U - Natural gas line leakage detection device - Google Patents

Abstract

The utility model discloses a natural gas line leakage detection device relates to the natural gas detection technology field. The utility model discloses a bottom structure has the open-ended device case, the inside horizontal baffle that is provided with of device case, the baffle will the device case is cut apart into a lower portion and is uncovered regional and an upper portion airtight region, uncovered region is fixed with a methane detector that is used for detecting methane concentration and exports methane concentration signal, airtight region installs one and is used for receiving methane concentration signal's controller. The utility model discloses a methane detector detects out the methane in the natural gas leakage, and it and then to controller signals, the air discharge fan work that is connected with the controller, takes the air in the kitchen out to methane concentration prevents that personnel from being poisoned in the reduction air, and the outage device work that is connected with the controller simultaneously prevents that personnel from turning on the light under the condition of not knowing natural gas leakage, causes conflagration or explosion with the indoor circuit outage.

Description

Natural gas line leakage detection device

Technical Field

The utility model relates to a natural gas detection technical field, concretely relates to natural gas line leak testing device.

Background

Natural gas is a combustible gas existing in nature, is a fossil fuel, comprises gases formed by various natural processes in the air space, water space and rock space, mainly comprises hydrocarbons, and contains non-hydrocarbon gas, so that yellow or blue flame is generated by combustion

The natural gas is mainly used as fuel, can be used for producing carbon black, chemicals and liquefied petroleum gas, and the propane and butane produced by the natural gas are important raw materials of modern industry. Natural gas is composed mainly of a mixture of gaseous low molecular hydrocarbons and non-hydrocarbon gases, and also contains carbon monoxide, hydrogen such as methane, which are colorless and odorless. However, human blood contains red blood cells, and the main component of red blood cells is hemoglobin, which has the function of transporting oxygen. In the lung, hemoglobin can combine with inhaled oxygen and deliver oxygen to various organs and tissues of the human body through the blood circulation. Carbon monoxide in natural gas is easier to combine with hemoglobin, and the combination is very firm. Its binding capacity is 200 times greater than that of oxygen. Therefore, once a human body inhales carbon monoxide, hemoglobin is combined with the carbon monoxide, so that oxygen cannot be conveyed, the human body is greatly damaged and even lives are threatened, and a fire or an explosion is possibly caused when natural gas leaks and meets open fire or electric sparks generated by a circuit.

The kitchen is the place most contacting with the natural gas in our life, the space is narrow, and a gas stove pipeline connector connected with a natural gas pipeline is easy to loosen, so that the natural gas leakage is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the personnel that cause for solving domestic natural gas line leakage are poisoned and prevent the conflagration explosion scheduling problem that natural gas leakage arouses, the utility model provides a natural gas line leakage detection device.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

a natural gas pipeline leakage detection device comprises a device box with an opening at the bottom, a horizontal clapboard is arranged inside the device box, the clapboard divides the device box into a lower open area and an upper closed area, a methane detector for detecting the methane concentration and outputting a methane concentration signal is fixed in the open area, the sealed area is provided with a controller for receiving the methane concentration signal, the output end of the controller is electrically connected with an exhaust fan and a power-off device which are positioned outside the sealed area, the exhaust fan is used for discharging methane in time, the power-off device is used for powering off an indoor circuit, the exhaust fan further comprises a power supply which is arranged in the closed area and used for providing electric quantity for the exhaust fan and the power-off device, when the concentration signal received by the controller exceeds the standard, the controller is used for controlling the exhaust fan to be opened and powering off the indoor through a power-off device.

Furthermore, the power-off device comprises a fixed box and a connecting piece, the fixed box is fixed on the wall surface and provided with a cavity, the connecting piece is connected with the circuit main gate switch, an electric small motor is arranged in the cavity, the controller is used for controlling the opening of the electric small motor, a winding wheel is fixed on a rotating shaft of the electric small motor, and the winding wheel is connected with the connecting piece through a nylon belt.

Furthermore, the connecting piece includes that the set establishes the annular buckle on circuit main brake switch, annular buckle cover portion of establishing is provided with a bolt that is used for the clamp circuit main brake switch.

Furthermore, two opposite side walls of the device box are respectively provided with a wire guide hole, and the wire guide holes are clamped with a sealing sleeve with a hollow inner part.

Further, still include a mounting bracket, mounting bracket one end is fixed its other end of device case lateral wall is fixed at the wall.

The utility model has the advantages as follows:

1. the utility model discloses a methane detector detects out the methane in the natural gas leakage, and then to controller signals, the air discharge fan work that is connected with the controller takes the air in the kitchen out to methane concentration prevents personnel's poisoning in the reduction air.

2. The utility model discloses a methane detector detects out the methane in the leakage natural gas, and then to controller signals, the power-off device work that is connected with the controller, with the indoor circuit outage, prevents that personnel from turning on the light under the condition of not knowing natural gas leakage, causes conflagration or explosion.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is an exploded view of the apparatus box of the present invention;

fig. 3 is a schematic perspective view of the power cutoff device of the present invention;

fig. 4 is a top view of the present invention;

reference numerals: 1. a device case; 11. a horizontal partition plate; 12. sealing sleeves; 2. a methane detector; 3. a controller; 4. an exhaust fan; 5. a power-off device; 51. a fixed box; 52. a connecting member; 521. an annular buckle; 522. a bolt; 53. an electric small motor; 54. a winding wheel; 55. a nylon band; 6. a power source; 7. and (7) mounting frames.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

As shown in fig. 1, 2 and 4, a natural gas pipeline leakage detecting device includes a device box 1 with an opening at the bottom, and a horizontal partition plate 11 is arranged inside the device box 1, the partition plate divides the device box 1 into a lower open area and an upper closed area, the open area is fixed with a methane detector 2 for detecting methane concentration and outputting a methane concentration signal, the closed area is installed with a controller 3 for receiving the methane concentration signal, and the output end of the controller 3 is electrically connected with an exhaust fan 4 and a power-off device 5 which are located outside the closed area, the controller 3 is connected with the exhaust fan 4 and the power-off device 5 through wires, meanwhile, the exhaust fan 4 is used for discharging methane and carbon monoxide in time, preventing the carbon monoxide concentration in a kitchen from rising to cause injury to human bodies, the power-off device 5 is used for powering off an indoor circuit, preventing personnel from turning on a light under the condition of not knowing the leakage of natural gas, cause conflagration or explosion, still including one set up in the regional inside power 6 that is used for providing the electric quantity to exhaust fan 4 and outage device 5 of airtight, and power 6 all passes through the wire with exhaust fan 4 and outage device 5 and is connected, wherein, when the concentration signal that controller 3 received exceeds the standard, it is used for controlling exhaust fan 4 to open and will cut off the power supply in the room through outage device 5, wherein power 6 stores in the airtight space, and outage device 5 that is connected with power 6, exhaust fan 4 all opens when the concentration can not cause danger after the natural gas leaks, the natural gas concentration of the inside leakage of kitchen in this later stage can be less than always and can cause personnel's injury and the concentration of taking place conflagration and explosion, the personnel that can effectually remind the home to open of exhaust fan 4 simultaneously have the natural gas leakage.

As shown in fig. 1 and 3, the power cut-off device 5 includes a fixed box 51 fixed on a wall surface and having a cavity, and a connecting member 52 connected to the circuit main gate switch, and an electric small motor 53 is disposed in the cavity, and the controller 3 is used for controlling the opening of the electric small motor 53, a winding wheel 54 is fixed on a rotating shaft of the electric small motor 53, the winding wheel 54 is connected to the connecting member 52 through a nylon belt 55, when a control signal of the controller 3 reaches the power cut-off device 5, the electric small motor 53 is opened, the winding wheel 54 fixed thereto rotates and simultaneously drives the nylon belt 55 to wind, and the connecting member 52 connected to the nylon belt 55 pulls the circuit main gate sleeved therewith to turn off the circuit power.

As shown in fig. 3, the connecting member 52 includes an annular buckle 521 sleeved on the main circuit gate switch, a bolt 522 for clamping the main circuit gate switch is disposed at a sleeved portion of the annular buckle 521, the annular buckle 521 is sleeved at one end of the main circuit gate, the main circuit gate is opened upward, the bolt 522 tightly connects the annular buckle 521 with the main circuit gate, and when the connecting member 52 is forced downward, the main circuit gate is pulled downward at the same time to form a power-off state.

As shown in fig. 1 and 2, two opposite side walls of the device box 1 are respectively provided with a wire guide hole, a sealing sleeve 12 with a hollow interior is clamped in the wire guide hole, and the sealing sleeve 12 and the sheath of the wire penetrating through the sealing sleeve have certain pressing force to form the sealing of the device box 1.

As shown in fig. 1 and 2, the gas burner further comprises a mounting bracket 7, one end of the mounting bracket 7 is fixed on the side wall of the device box 1, and the other end of the mounting bracket 7 is fixed on the wall surface, and the mounting bracket 7 can be generally arranged at a position which is not far away from the joint of the natural gas pipeline and the gas stove pipeline in order to fix the device box 1 on the wall surface.

Claims (5)

1. The utility model provides a natural gas line leak testing device, its characterized in that has open-ended device case (1) including the bottom structure, device case (1) inside is provided with a horizontal partition board (11), the baffle will device case (1) is split into lower portion open area and an upper portion sealed region, open area is fixed with one and is used for detecting methane concentration and exports methane concentration signal's methane detector (2), sealed regional installation has one and is used for receiving controller (3) of methane concentration signal, the output electric connection of controller (3) has one to be located sealed regional outside exhaust fan (4) and outage device (5), exhaust fan (4) are used for in time discharging methane, outage device (5) are used for the outage of indoor circuit, still include one to set up sealed regional inside be used for to exhaust fan (4) and outage device (5) provide power supply (6) of electric quantity, wherein, when the concentration signal received by the controller (3) exceeds the standard, the controller is used for controlling the exhaust fan (4) to be opened and powering off the indoor through a power-off device (5).

2. The natural gas pipeline leakage detecting device according to claim 1, wherein the power cut-off device (5) comprises a fixed box (51) fixed on a wall surface and provided with a cavity, and a connecting piece (52) connected with a circuit main brake switch, an electric small motor (53) is arranged in the cavity, the controller (3) is used for controlling the opening of the electric small motor (53), a winding wheel (54) is fixed on a rotating shaft of the electric small motor (53), and the winding wheel (54) is connected with the connecting piece (52) through a nylon belt (55).

3. The natural gas pipeline leakage detection device according to claim 2, wherein the connecting member (52) comprises an annular buckle (521) sleeved on the circuit main gate switch, and a bolt (522) for clamping the circuit main gate switch is arranged at the sleeved part of the annular buckle (521).

4. The natural gas pipeline leakage detection device according to claim 1, wherein two opposite side walls of the device box (1) are respectively provided with a wire guide hole, and the wire guide holes are clamped with a sealing sleeve (12) with a hollow inner part.

5. The natural gas pipeline leakage detection device according to claim 1, further comprising a mounting bracket (7), wherein one end of the mounting bracket (7) is fixed on the side wall of the device box (1) and the other end of the mounting bracket (7) is fixed on the wall surface.

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