CN213689555U

CN213689555U - Gas detector for electrical engineering

Info

Publication number: CN213689555U
Application number: CN202022692573.9U
Authority: CN
Inventors: 张克秋
Original assignee: Beijing Haishi Electrical Installation Engineering Co ltd
Current assignee: Beijing Haishi Electrical Installation Engineering Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-07-13
Anticipated expiration: 2030-11-18

Abstract

The application relates to the field of gas detection, especially, relate to a gas detector for electrical engineering, its technical scheme main points are: including the shell and locate the inside detection box of shell, be connected with inlet line, the pipeline of giving vent to anger on the detection box, inlet line and the free expansion end of the pipeline of giving vent to anger extend the shell, install the blast pump on the pipeline of giving vent to anger, the shell setting is all kept away from to the free expansion end of inlet line and the pipeline of giving vent to anger, and the free expansion end of inlet line is placed and is being waited to detect gas environment inside. The gas detector is not required to be held by a detection person and is arranged in the detected gas environment, so that the detection process is safer.

Description

Gas detector for electrical engineering

Technical Field

The application relates to the field of gas detection, in particular to a gas detector for electrical engineering.

Background

At present, in order to ensure the safety of gas in a space in an electrical construction site or a power distribution room, a gas detector is widely used in electrical engineering. The gas detector for electrical engineering mainly aims at combustible gas to detect and can be used for detecting the concentration of the combustible gas in the air.

Referring to fig. 1, the related art gas detector includes a housing 1, an inlet duct 2, an outlet duct 3, a detection box 5, and circuit components. Inlet channel 2, outlet channel 3 and detection box 5 all set up inside shell 1, and inlet channel 2 one end and the outside intercommunication of shell 1, the other end and the inside intercommunication of

detection box

5, 3 one ends of outlet channel and the outside intercommunication of shell 1, the other end and the inside intercommunication of detection box 5. People hold the gas detector by hand, put the gas detector into the gas environment to be detected, the external gas enters the detection box 5 from the gas inlet pipeline 2, the detection element 52 detects the gas, and then the gas flows out from the gas outlet pipeline 3.

In view of the above-mentioned related art solutions, the inventors found that: people need to hold the gas detector by hand and put the gas detector into the detected gas environment, so that part or the whole of a human body is put into the detected gas environment, if the gas environment is unsafe, the gas detector can cause harm to detection personnel, and the detection process is unsafe.

SUMMERY OF THE UTILITY MODEL

In order to make the testing personnel needn't hand the gas detector and place in the gaseous environment of being examined, make the testing process safer, this application provides a gas detector for electrical engineering.

The application provides a gaseous detector for electrical engineering adopts following technical scheme:

the utility model provides a gaseous detector for electrical engineering, includes the shell and locates the inside detection box of shell, is connected with inlet line, the pipeline of giving vent to anger on the detection box, and inlet line and the free expansion end of the pipeline of giving vent to anger extend the shell, install the blast pump on the pipeline of giving vent to anger, and the shell setting is all kept away from to the free expansion end of inlet line and the pipeline of giving vent to anger, and the free expansion end of inlet line is placed and is being waited to detect gas environment inside.

Through adopting above-mentioned technical scheme, people can keep away from shell one end with inlet channel and outlet duct and arrange in being detected gaseous environment, then handheld gaseous detector shell is in safe space, and the work of air-blowing pump makes the inlet channel absorb and is detected gaseous, and gaseous entering detects the box and is detected then the air-blowing pump that flows through, from the outlet channel outflow gas detector. Therefore, people can carry out gas detection on the area needing to be detected without entering the detected gas environment, and the risk that the detected gas damages the detected people is reduced.

Preferably, the inlet duct and the outlet duct are flexible ducts that can be bent.

Through adopting above-mentioned technical scheme, because inlet channel and the pipeline of giving vent to anger can freely bend, make inlet channel and the pipeline of giving vent to anger adapt to different environment like this, can be smooth keep away from shell one end with inlet channel and the pipeline of giving vent to anger and implant the detected gas region in the complicated operational environment of electrical engineering.

Preferably, the part of the air inlet pipeline and the part of the air outlet pipeline, which extend out of the shell, are sleeved with the wrapping pipe, and the wrapping pipe wraps the air outlet pipeline and the part of the air inlet pipeline, which is positioned outside the shell.

Through adopting above-mentioned technical scheme, the involucrum wraps up inlet duct and the pipeline of giving vent to anger, makes originally two root canals that expose outside the shell become a house steward, makes gas detection appearance's structure compacter like this, makes the measurement personnel need operate two root canals originally and become a house steward of operation, operates gas detection appearance simpler.

Preferably, the free end of the air inlet pipeline is provided with a detection head capable of passing through air, the detection head is communicated with the air outlet pipeline, the detection head is provided with a head air inlet hole and a head air outlet hole, the head air inlet hole is communicated with the air inlet pipeline, and the head air outlet hole is communicated with the air outlet pipeline.

Through adopting above-mentioned technical scheme, because the free end is the object that has certain weight, will give vent to anger pipeline and inlet duct and be connected, make giving vent to anger pipeline and inlet duct free end can be steady arrange in by the gas environment of being detected, reduce because the disturbance of being detected air flow in the gas environment to giving vent to anger pipeline and inlet duct.

Preferably, the detection head is of a cylindrical structure, and the head air inlet hole and the head air outlet hole are respectively formed in two opposite end faces of the detection head.

Through adopting above-mentioned technical scheme, on the department of admitting air and the punishment of giving vent to anger were arranged in two relative terminal surfaces respectively on the detection head, had certain distance between, make the gas that has detected be difficult for being inhaled inside the gas detector once more, improved the gaseous precision of gas detection appearance detection like this, make the gaseous result of gas detection appearance detection more accurate.

Preferably, a detection net is provided inside the detection box, and a plurality of different types of detection elements are uniformly provided on the detection net.

Through adopting above-mentioned technical scheme, need pass the detection net in being detected gaseous entering detection box and just can flow out the detection box, and the detecting element of equipartition detects the gas that flows through the detection net on the detection net, and the design that detects the net makes gaseous and detecting element's area of contact bigger, and compares and arrange detecting element in the detection box bottom, and the gas flow that flows through detecting element is bigger, makes gas detection appearance detect gaseous more sensitive.

Preferably, the air inlet pipeline and the air outlet pipeline are arranged on two opposite end faces of the detection box, and the two end faces of the detection box are parallel to the plane where the detection net is located.

Through adopting above-mentioned technical scheme, it flows into the detection box from the admission line to be detected gaseous, then flows through the detection net and flows out from the pipeline of giving vent to anger, and the department of admitting air that detects the box with give vent to anger out in detection net both sides, make like this to be detected gaseous can be more abundant contact detection net, make the testing result more accurate.

Preferably, the shell includes last casing and can with last casing matched with lower casing, goes up the casing and is provided with magnet one on being close to the terminal surface of casing down, and the terminal surface that the casing is close to last casing down is provided with magnet two that can adsorb each other with magnet one.

Through adopting above-mentioned technical scheme, go up the casing and can adsorb each other through magnet one and magnet two with lower casing, make the gaseous detector of opening that people can be easier like this to overhaul or maintain etc. to its inside.

In summary, the present application has the following technical effects:

1. by arranging the longer air inlet pipeline and the longer air outlet pipeline, a detector can place the detector head in a detected environment and is in a safe environment, so that the risk of the detector being injured by detection gas is reduced;

2. through having set up the detection net, it is more abundant to make gas to be examined can contact detecting element to make gas detection appearance sensitive, accurate to gaseous detection.

Drawings

FIG. 1 is a schematic view showing a structure of a gas detector in the related art;

FIG. 2 is a schematic diagram of a gas detector according to an embodiment of the present disclosure;

FIG. 3 is a schematic view showing the structure of a cartridge in an embodiment of the present application;

FIG. 4 is a schematic view of the internal structure of the detection head in the embodiment of the present application;

in the figure, 1, a housing; 11. an upper housing; 12. a lower housing; 121. a tracheal hole; 2. An air intake duct; 3. an air outlet pipe; 4. wrapping a pipe; 5. a detection cartridge; 51. detecting the net; 52. a detection element; 6. an air blowing pump; 10. a detection head; 101. a head air inlet; 102. a head air outlet.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 2, the present application provides a gas detector for electrical engineering, which includes a housing 1, an inlet duct 2, a detection box 5, and an outlet duct 3. The shell 1 comprises an upper shell 11 and a lower shell 12 which can be matched with the upper shell 11, a first magnet is arranged on the end face, close to the lower shell 12, of the upper shell 11, and a second magnet which can be adsorbed with the first magnet is arranged on the end face, close to the upper shell 11, of the lower shell 12. The detection box 5 is fixed on the inner surface of the shell 12, the detection box 5 is of a hollow box-shaped structure, one end of the air inlet pipeline 2 is fixedly connected with one side surface of the detection box 5, and the interior of the air inlet pipeline 2 is communicated with the interior of the detection box 5. The side of keeping away from inlet tube 2 at detection box 5 is provided with air-blowing pump 6, air-blowing pump 6 with detect box 5 fixed connection, air-blowing pump 6 air inlet with detect the inside intercommunication of

box

5, 3 one ends of the pipeline of giving vent to anger and 6 fixed connection of air-blowing pump, the pipeline of giving vent to anger 3 inside and 6 gas outlets of air-blowing pump intercommunication. The air pump 6 is arranged opposite to the air inlet pipeline 3, and is helpful for the detected gas to fully flow through the interior of the detection box 5, so that the detection box 5 detects the gas.

An air pipe hole 121 through which the air inlet pipe 2 and the air outlet pipe 3 can pass is formed in one side surface of the lower shell 12, and one ends of the air inlet pipe 2 and the air outlet pipe 3, which are far away from the detection box 5, extend to the outside of the shell 1, pass through the air pipe hole 121, and extend to the outside of the shell 1. The length of the inlet pipe 2 and the outlet pipe 3 extending out of the housing 1 is about 1-2 meters. The parts of the air inlet pipeline 2 and the air outlet pipeline 3 extending out of the shell 1 are provided with a wrapping pipe 4, one end of the air inlet pipeline 2 far away from the shell 1 is provided with a detection head 10, and the air inlet pipeline 2 and the air outlet pipeline 3 are communicated with the interior of the detection head 10.

The gas to be detected enters the gas detector from the gas inlet pipeline 2, the gas flows into the detection box 5, the detection box 5 detects the gas, then the gas flows through the air blowing pump 6 and flows out from the gas outlet pipeline 3, and the gas inlet pipeline 2 and the gas outlet pipeline 3 extend out of the shell by 11-2 meters, so that people can hold the shell 1 of the gas detector in a hand to be located in a safe area, and the detection head 10 is placed in a detected environment, so that people do not need to enter the detected environment, and the safety risk existing in the gas detection process is reduced.

In this embodiment, the air inlet pipe 2 and the air outlet pipe 3 are rubber pipes, plastic pipes or memory alloy pipes, and other pipes capable of realizing free bending function can be used.

Referring to fig. 3, a detection net 51 is arranged inside the detection box 5, the detection net 51 is a net structure shaped like a Chinese character jing formed by tubes which are hollow and communicated inside, the periphery of the detection net 51 is fixedly connected with the inner wall of the detection box 5, the net surface of the detection net 51 is perpendicular to the axis of the air outlet of the air inlet pipeline 2, and a plurality of detection elements 52 are uniformly arranged on the net surface of the detection net 51 close to the air inlet pipeline 2. The gas to be detected flows into the detection box 5 from the air inlet pipeline 2, then the gas flows through the detection net 51 and contacts with the detection elements 52, the detection elements 52 detect the gas, the flow direction of the gas to be detected is vertical to the plane of the detection net 51, a large amount of gas flows through each detection element 52, and therefore the detection elements 52 can fully contact with the gas to be detected, the gas detector is more sensitive, and the detection result is more accurate.

Referring to fig. 2 and 4, an L-shaped head air inlet 101 and an L-shaped head air outlet 102 are disposed inside the detection head 10, one end of the head air inlet 101 is communicated with one end of the air inlet pipe 2 away from the air blowing pump 6, one end of the head air outlet 102 is communicated with one end of the air outlet pipe 3 away from the detection box 5, one end of the head air inlet 101 away from the air inlet pipe 2 and one end of the head air outlet 102 away from the air outlet pipe 3 are disposed on two opposite end faces of the detection head 10. Because the gas inlet part and the gas outlet part on the detection head 10 are respectively arranged on the two opposite end faces and have a certain distance therebetween, the detected gas is not easy to be sucked into the gas detector again, so that the gas detection precision of the gas detector is improved, and the gas detection result of the gas detector is more accurate.

To sum up, the application process of this application is: the gas detector is started by operating the key 9 and then the detection is started and the gas detector is reset to zero to start the detection. Rotor 62 of air-blowing pump 6 drives blade 63 to rotate, and air-blowing pump 6 works, makes admission line 2 inhale gas, and in gaseous entering detection box 5, detection element 52 on the detection net 51 detected gas in the detection box 5, then gaseous flow through air-blowing pump 6 from the gaseous detector of pipeline 3 outflow of giving vent to anger, and detection element 52 detects gaseous result and shows on the screen, and the measurement personnel can cross and learn the result.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. The utility model provides a gaseous detector for electrical engineering, includes the shell and locates the inside detection box of shell, its characterized in that: be connected with inlet line, the pipeline of giving vent to anger on the detection box, inlet line and the free movable end of the pipeline of giving vent to anger extend the shell, install the blast pump on the pipeline of giving vent to anger, and the shell setting is all kept away from to the free movable end of inlet line and the pipeline of giving vent to anger, and the free movable end of inlet line can be placed and treat inside the gaseous environment.

2. A gas detector for electrical engineering according to claim 1, characterized in that: the air inlet pipeline (2) and the air outlet pipeline (3) are flexible pipelines capable of being bent.

3. A gas detector for electrical engineering according to claim 2, characterized in that: the part of the air inlet pipeline (2) and the air outlet pipeline (3) extending out of the shell (1) is sleeved with the packing pipe (4), and the air outlet pipeline (3) and the part of the air inlet pipeline (2) located outside the shell (1) are wrapped by the packing pipe (4).

4. A gas detector for electrical engineering according to claim 1, characterized in that: the free end of the air inlet pipeline (2) is provided with a detection head (10) capable of passing through air, the detection head (10) is communicated with the air outlet pipeline (3), the detection head (10) is provided with a head air inlet hole (101) and a head air outlet hole (102), the head air inlet hole (101) is communicated with the air inlet pipeline (2), and the head air outlet hole (102) is communicated with the air outlet pipeline (3).

5. A gas detector for electrical engineering according to claim 4, characterized in that: the detection head (10) is of a cylindrical structure, and a head air inlet hole (101) and a head air outlet hole (102) are respectively arranged on two opposite end faces of the detection head (10).

6. A gas detector for electrical engineering according to claim 1, characterized in that: a detection net (51) is arranged in the detection box (5), and a plurality of detection elements (52) of different types are uniformly arranged on the detection net (51).

7. A gas detector for electrical engineering according to claim 6, characterized in that: the air inlet pipeline (2) and the air outlet pipeline (3) are arranged on two opposite end faces of the detection box (5), and the two end faces of the detection box (5) are parallel to the plane where the detection net (51) is located.

8. A gas detector for electrical engineering according to claim 1, characterized in that: the shell comprises an upper shell (11) and a lower shell (12) which can be matched with the upper shell (11), a first magnet is arranged on the end face, close to the lower shell (12), of the upper shell (11), and a second magnet which can be adsorbed with the first magnet is arranged on the end face, close to the upper shell (11), of the lower shell (12).