CN219871266U

CN219871266U - Gas detector

Info

Publication number: CN219871266U
Application number: CN202322368618.0U
Authority: CN
Inventors: 刘遵; 何俊
Original assignee: Chengdu Rongyue Technology Co ltd
Current assignee: Chengdu Rongyue Technology Co ltd
Priority date: 2023-09-01
Filing date: 2023-09-01
Publication date: 2023-10-20
Anticipated expiration: 2033-09-01

Abstract

The utility model provides a gas detector, and belongs to the technical field of gas detection; the air inlet device comprises a fixed plate, a detector body and a fan, wherein the detector body and the fan are arranged on the fixed plate, a dust cover is arranged outside an air inlet pipeline on the detector body, a wind distributing disc is sleeved on the outer wall of the air inlet pipeline and positioned in the dust cover, and an air pipe is arranged between the wind distributing disc and an air outlet end of the fan; a first filter screen is arranged on one side of the dust cover, which is close to the air inlet end of the air inlet pipeline; a plurality of air outlet holes are uniformly distributed on one side of the air distribution disc, which is close to the first filter screen; dust in the air can be filtered by arranging the dust cover; by arranging the wind dividing disc and the fan, when dust is attached to the first filter screen, under the action of the fan, air is blown to the first filter screen along a plurality of air outlet holes of the wind dividing disc so as to blow off the dust attached to the air inlet side of the first filter screen; by the synergistic effect of the devices, the dust cover can continuously play a dust-proof role.

Description

Gas detector

Technical Field

The utility model relates to the technical field of gas detection, in particular to a gas detector.

Background

A gas detector is an instrument that detects the concentration of a gas. The instrument is suitable for dangerous places with combustible or toxic gas, and can continuously detect the content of the detected gas in the air within the explosion lower limit for a long time. The device can be widely applied to various industries of fuel gas, petrochemical industry, metallurgy, steel, coking, electric power and the like with combustible or toxic gases, and is an ideal monitoring instrument for guaranteeing property and personal safety.

Whether the gas detector is installed indoors or outdoors, the gas detector needs to be exposed to the air for a long time, so that dust is accumulated in the gas inlet pipeline easily, and the gas inlet pipeline is blocked, so that the gas detection accuracy is affected. In the prior art, a filter screen is usually arranged in an air inlet pipeline to reduce dust entering the detector, and the filter screen is arranged in the air inlet pipeline, so that after the air inlet surface of the filter screen is stuck with dust or is blocked by back dust, the filter screen is difficult to clean conveniently, and the filter screen cannot continuously play a role in filtering, so that the filter screen has certain defects.

Disclosure of Invention

The utility model aims to provide a gas detector, which is provided with a dust cover outside an air inlet pipeline, so that when dust is adhered to the air inlet surface of the dust cover, the dust can be rapidly treated, and the blockage of the dust cover is effectively avoided.

The utility model aims at realizing the following technical scheme:

the gas detector comprises a fixed plate, a detector body and a fan, wherein the detector body and the fan are arranged on the fixed plate, a dust cover is arranged outside an air inlet pipeline on the detector body, a wind dividing disc is sleeved on the outer wall of the air inlet pipeline and positioned in the dust cover, and a wind pipe is arranged between the wind dividing disc and an air outlet end of the fan; a first filter screen is arranged on one side of the dust cover, which is close to the air inlet end of the air inlet pipeline; and a plurality of air outlet holes are uniformly distributed on one side of the air distribution disc, which is close to the first filter screen.

In the scheme, the fixing plate is arranged, so that the gas detector can be conveniently fixed on a wall or other devices capable of placing the gas detector; dust in the air can be filtered by arranging a dust cover outside the air inlet pipeline, so that the dust is prevented from entering the air inlet pipeline to cause pipeline blockage and influence the detection accuracy; through setting up branch wind dish and setting up the fan of blowing in the branch wind dish in the dust cover, can be when the first filter screen of dust cover bottom adheres to the dust, under the effect of fan, make the air blow to the air-out side of first filter screen along a plurality of apopores of dividing the wind dish fast to with the dust of attaching at first filter screen air inlet side blows off. Through the synergistic effect of the devices, when dust is attached to the dust cover, the dust can be rapidly removed, so that the dust cover can continuously play a role in dust prevention.

Preferably, the air inlet end of the fan is provided with a second filter screen.

In the above-mentioned scheme, through setting up the second filter screen, can filter the inside air of entering fan at the fan during operation, avoid the dust to get into the dust cover inside along fan, tuber pipe and branch wind dish, and then get into in the admission line, influence the detector and survey the accuracy.

Preferably, the dust collection device is arranged at the bottom end of the dust cover, and the driving device is used for driving the dust collection device to horizontally move on the air inlet side of the first filter screen.

Under the effect of fan, can make the tiny particle that adheres to the air inlet side of first filter screen blow off, but, to the net, filiform dust that adheres to the air inlet side of first filter screen, only through the effect of fan, it is lower to get rid of efficiency, usually still has part net or filiform dust adhesion to first filter screen surface after blowing, in order to overcome this technical defect, in the above-mentioned scheme, through setting up dust extraction and drive arrangement, can make dust extraction carry out horizontal displacement in the air inlet side of first filter screen, so that dust extraction will adhere to net, filiform dust in the air inlet side of first filter screen.

Preferably, the driving device comprises electric sliding rails arranged on two opposite sides of the bottom end of the dust cover, and a sliding block in sliding fit with the electric sliding rails; the dust collection device is arranged between the two sliding blocks.

In the scheme, through the arrangement of the electric sliding rail and the sliding block, the sliding block can automatically slide on the electric sliding rail when the electric sliding rail works, and then the dust collection device moves along with the sliding of the sliding block.

Preferably, the dust collection device comprises a connecting block arranged between the two sliding blocks and a cotton block arranged on one side of the connecting block, which is close to the first filter screen.

In the scheme, the cotton block is arranged, so that dust adhered to the surface of the first filter screen can be removed by the cotton block when the cotton block moves along with the sliding block, and particularly filiform or netlike dust; in addition, because the cotton block is in the removal in-process, probably with some dust squeeze into the mesh of first filter screen, at this moment, open the fan, through wind-force will block up the dust in the first filter screen blow down can.

Preferably, a groove is formed in one side, close to the first filter screen, of the connecting block, and the cotton block is detachably arranged in the groove.

In the scheme, the cotton block can be detachably arranged in the groove so as to be replaced.

Preferably, the first filter screen is detachably arranged on the dust cover.

In the scheme, the first filter screen is detachably arranged on the dust cover, so that the first filter screen can be conveniently replaced when damaged.

Compared with the prior art, the utility model has the beneficial effects that:

by arranging the fixing plate, the gas detector is convenient to fix on a wall or other devices capable of placing the gas detector; dust in the air can be filtered by arranging a dust cover outside the air inlet pipeline, so that the dust is prevented from entering the air inlet pipeline to cause pipeline blockage and influence the detection accuracy; through setting up branch wind dish and setting up the fan of blowing in the branch wind dish in the dust cover, can be when the first filter screen of dust cover bottom adheres to the dust, under the effect of fan, make the air blow to the air-out side of first filter screen along a plurality of apopores of dividing the wind dish fast to with the dust of attaching at first filter screen air inlet side blows off. Through the synergistic effect of the devices, when dust is attached to the dust cover, the dust can be rapidly removed, so that the dust cover can continuously play a role in dust prevention.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model in elevation;

FIG. 2 is a schematic diagram of the structure of the present utility model in front view;

FIG. 3 is a schematic view illustrating a bottom view of an electric sliding rail according to the present utility model;

FIG. 4 is a schematic diagram of a cross-sectional structure of an electric sliding rail in the left-view direction;

in the figure: 100-fixed plate, 110-detector body, 120-fan, 240-air inlet pipeline, 130-dust cover, 140-wind dividing disc, 150-tuber pipe, 160-first filter screen, 170-air outlet hole, 190-electric slide rail, 200-slider, 210-connecting block, 220-cotton block and 230-groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to fig. 1 to 4, but the scope of the present utility model is not limited to the following description.

Example 1

1-2, a gas detector comprises a fixed plate 100, a detector body 110 and a fan 120 which are arranged on the fixed plate 100, a dust cover 130 arranged outside an air inlet pipeline 240 on the detector body 110, a wind dividing disc 140 sleeved on the outer wall of the air inlet pipeline 240 and positioned in the dust cover 130, and an air pipe 150 arranged between the wind dividing disc 140 and the air outlet end of the fan 120; a first filter screen 160 is arranged on one side of the dust cover 130 close to the air inlet end of the air inlet pipeline 240; a plurality of air outlets 170 are uniformly distributed on one side of the air distribution plate 140, which is close to the first filter screen 160. In practical use, the gas detector is generally connected with the gas controller, and the gas detector body 110 and the gas controller are all in the prior art, the model of the gas detector body 110 selected in the utility model is a YA-D300 detector (in practical use, only the filter screen in the gas inlet pipe 240 of the detector is removed), and when the gas detector is sold, a plurality of gas controllers adapted to the gas detector are available, and the working principle of the gas detector, the working principle of the gas controller and the connection mode of the gas controller are all in the prior art, and are not repeated herein. Further, a second filter (not shown) is disposed at the air inlet end of the blower 120.

In particular, the fixing plate 100 is first fixed on a wall and other devices that can be used to fix the fixing plate 100 by bolts (not shown), and after the fixing, the first filter screen 160 faces downward (the present utility model is mainly used for detecting a gas with a density smaller than that of air, such as natural gas). When the dust is adhered to the bottom surface of the first filter screen 160, the first filter screen 160 needs to be treated, generally speaking, when the adhered dust is too little, the first filter screen 160 needs to be opened immediately when the adhered dust is more and even the filtering effect of the first filter screen 160 is affected, under the action of the fan 120, the air is filtered by the second filter screen and then sequentially enters the air distribution disc 140 through the fan 120 and the air pipe 150, and the air is blown to the first filter screen 160 through the plurality of air outlet holes 170 at the bottom of the air distribution disc 140, so that the dust adhered to the first filter screen 160 is blown off, and the reduction of the filtering efficiency of the first filter screen 160 caused by the accumulation of a large amount of dust is avoided, and the detection accuracy of the gas detector is affected.

Example 2

On the basis of embodiment 1, as shown in fig. 1-4, the gas detector further includes a dust collection device disposed at the bottom end of the dust cover 130, and a driving device for driving the dust collection device to horizontally displace on the air inlet side of the first filter screen 160. Further, the driving device includes an electric sliding rail 190 disposed at two opposite sides of the bottom end of the dust cover 130, and a sliding block 200 slidably engaged with the electric sliding rail 190; the dust collection device is arranged between the two sliding blocks 200. Further, as shown in fig. 1, 3 and 4, the dust suction device includes a connection block 210 disposed between the two sliders 200, and a cotton block 220 (made of cotton) disposed on a side of the connection block 210 near the first filter screen 160. Further, as shown in fig. 4, a groove 230 is disposed on a side of the connection block 210 adjacent to the first filter screen 160, and the cotton block 220 is detachably disposed in the groove 230. Further, the first filter 160 is detachably disposed on the dust cover 130. It should be noted that, after the cotton block 220 is inserted into the groove 230, it can contact the inner wall and the bottom wall of the groove 230, and the cotton block 220 and the groove 230 are shown in fig. 4 to be provided with gaps for convenience of observation.

In particular, when some net-shaped or wire-shaped dust is attached to the air inlet side of the first filter screen 160, the electric slide rail 190 is started, so that the slide block 200 slides on the electric slide rail 190, and further the connecting block 210 and the cotton block 220 are driven to move synchronously, and the cotton block 220 can abut against the first filter screen 160 in the moving process, so that the net-shaped or wire-shaped dust attached to the first filter screen 160 can be adhered to the surface of the cotton block 220, and the purpose of removing the net-shaped or wire-shaped dust is achieved.

In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "longitudinal," "transverse," and the like indicate an orientation or a positional relationship based on that shown in fig. 1, merely for convenience of describing the patent and simplifying the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the patent.

The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein and is not to be considered as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either by the foregoing teachings or by the teaching of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims

1. The gas detector is characterized by comprising a fixed plate (100), a detector body (110) and a fan (120), wherein the detector body (110) and the fan (120) are arranged on the fixed plate (100), a dust cover (130) arranged outside an air inlet pipeline (240) on the detector body (110), a wind distributing disc (140) sleeved on the outer wall of the air inlet pipeline (240) and positioned in the dust cover (130), and an air pipe (150) arranged between the wind distributing disc (140) and an air outlet end of the fan (120); a first filter screen (160) is arranged on one side of the dust cover (130) close to the air inlet end of the air inlet pipeline (240); and a plurality of air outlet holes (170) are uniformly distributed on one side of the air distribution disc (140) close to the first filter screen (160).

2. A gas detector according to claim 1, characterized in that the air inlet end of the fan (120) is provided with a second filter screen.

3. A gas detector according to claim 1, further comprising a dust extraction device arranged at the bottom end of the dust cap (130), and a driving device for driving the dust extraction device to perform a horizontal displacement on the inlet side of the first filter screen (160).

4. A gas detector according to claim 3, wherein the driving means comprises electric slide rails (190) arranged on opposite sides of the bottom end of the dust cap (130), and a slider (200) in sliding engagement with the electric slide rails (190); the dust collection device is arranged between the two sliding blocks (200).

5. A gas detector according to claim 4, characterized in that the dust suction device comprises a connection block (210) arranged between two of the sliders (200), and a cotton block (220) arranged on the side of the connection block (210) close to the first filter screen (160).

6. A gas detector according to claim 5, wherein a recess (230) is provided in a side of the connection block (210) adjacent to the first filter screen (160), and the cotton block (220) is detachably provided in the recess (230).

7. A gas detector according to claim 1, wherein the first filter screen (160) is detachably arranged on the dust cap (130).