CN211263107U

CN211263107U - Dust concentration automatic checkout device in operational environment

Info

Publication number: CN211263107U
Application number: CN201922344094.5U
Authority: CN
Inventors: 周翠; 张宇晗; 李曙光; 董富强
Original assignee: Liaoning Huihua Technology Service Co ltd
Current assignee: Liaoning Huihua Technology Service Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-08-14
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses an automatic detection device for dust concentration in a working environment, which relates to the technical field of dust concentration detection, and comprises a box body, wherein a bracket is arranged at the bottom of the box body, an air inlet pipe is arranged at one side of the box body, and one end of the air inlet pipe extends to the interior of the box body and is provided with a detection pipe, the bottom of the detection pipe is provided with a photomultiplier, the outer wall of the air inlet pipe is provided with a shaft seat, one side of the shaft seat is rotatably connected with a filter plate through a rotating shaft, and the interior of the filter plate is provided with a heating wire, the bottom of the interior of the box body is provided with an exhaust fan, and one side of the exhaust fan is provided with a first conduit, the utility model solves the problem that the detection precision can be influenced by the air humidity through the filter plate, through the pipe, the problem that the instrument is in a high-concentration dust working environment and is not beneficial to observing a detection result is solved.

Description

Dust concentration automatic checkout device in operational environment

Technical Field

The utility model belongs to the technical field of dust concentration detection, concretely relates to dust concentration automatic checkout device in operational environment.

Background

The dust concentration detection is to detect the dust concentration in the air of a space, and the dust concentration detector mainly comprises a capacitance method, a beta-ray method, a light scattering method, a light absorption method, a triboelectric method, an ultrasonic method, a microwave method and other dust concentration online measurement methods.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dust concentration automatic checkout device in operational environment to the detection precision of proposing can receive the air humidity influence in solving above-mentioned background art, and the instrument is in high concentration dust operational environment, is unfavorable for observing the problem of testing result.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a dust concentration automatic checkout device in operational environment, the power distribution box comprises a box body, the support is installed to the bottom of box, the intake pipe is installed to one side of box, and the one end of intake pipe extends to the internally mounted of box and has the detecting tube, photomultiplier is installed to the bottom of detecting tube, the axle bed is installed to the outer wall of intake pipe, one side of axle bed rotates through the pivot and is connected with the filter, and the internally mounted of filter has the heater strip.

Preferably, the inside bottom of box is installed the air exhauster, and one side of air exhauster installs first pipe, the second pipe is installed to the one end of first pipe, and the below of second pipe installs the third pipe.

Preferably, a laser emitter is installed in the box body at a position close to the lower part of the detection tube, and a controller is installed on one side of the laser emitter.

Preferably, the front surface mounting of box has the display screen, and the below of display screen installs the switch, display screen, air exhauster, photomultiplier, heater strip and laser emitter all with controller electric connection, controller and switch electric connection.

Preferably, the rotation angle range of the filter plate is 0-360 degrees, and the outer wall of the filter plate is coated with an insulating coating.

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

(1) the utility model discloses a filter, filter are installed in the intake pipe, and through the mode of electrical heating, with the heater strip heating on the filter, the dust is along with the air that has higher air humidity, through the filter, then is dried, has solved the problem that the detection precision can receive the influence of air humidity.

(2) The utility model discloses a pipe, aim at the surface of box with the air exit, blow away the dust on box surface fast, avoid under high concentration dust environment, the dust is spread and is covered in the display screen top, leads to the user to see the numerical value that detects out directly perceivedly, has solved the instrument and is in high concentration dust operational environment, is unfavorable for observing the problem of testing result.

Drawings

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

FIG. 2 is an external view of the present invention;

FIG. 3 is a side view of the intake tube and filter plate of the present invention;

fig. 4 is a circuit block diagram of the present invention;

in the figure: 1-a controller; 2-a laser emitter; 3-a filter plate; 4, an air inlet pipe; 5-a detection tube; 51-photomultiplier tube; 6-a first conduit; 7-an exhaust fan; 8-a scaffold; 9-a box body; 10-a switch; 11-a second conduit; 111-a third conduit; 12-a display screen; 13-shaft seat; 14-heating wires.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a dust concentration automatic checkout device in operational environment, the power distribution box comprises a box body 9, support 8 is installed to the bottom of box 9, intake pipe 4 is installed to one side of box 9, and the internally mounted of the one end of intake pipe 4 extends to box 9 has detecting tube 5, photomultiplier 51 is installed to detecting tube 5's bottom, axle bed 13 is installed to intake pipe 4's outer wall, one side of axle bed 13 is rotated through the pivot and is connected with filter 3, and the internally mounted of filter 3 has heater strip 14, air exhauster 7 extracts outside dusty air, the air and heater strip 14 that the process has been heated by heater strip 14 fast, the moisture in the air is dried this moment, can not accumulate the inner wall at detecting tube 5 because of air moisture in the dust admission detecting tube 5, the concentration of dust in detecting tube 5 is unchangeable simultaneously, it is unchangeable to detect.

Further, an exhaust fan 7 is installed at the bottom inside the box 9, a first guide pipe 6 is installed on one side of the exhaust fan 7, a second guide pipe 11 is installed at one end of the first guide pipe 6, and a third guide pipe 111 is installed below the second guide pipe 11.

Further, the inside of box 9 is close to the below position department of detecting tube 5 and installs laser emitter 2, and controller 1 is installed to one side of laser emitter 2, adopt the light scattering method to detect dust concentration, when laser emitter 2 shines the light for the dust that floats in the detecting tube 5, under the certain condition of dust physical property, the scattered light intensity of dust is directly proportional to the mass concentration of dust, convert scattered light intensity into the relative mass concentration that the dust can be measured to the pulse count, through presetting numerical value, alright direct display dust mass concentration.

Further, a display screen 12 is installed on the front surface of the box body 9, a switch 10 is installed below the display screen 12, the exhaust fan 7, the photomultiplier 51, the heating wire 14 and the laser emitter 2 are all electrically connected with the controller 1, the controller 1 is electrically connected with the switch 10, the controller 1 adopts LD-5 and rated voltage of 6V, and the exhaust fan 7 adopts GD30K2-12 and rated power of 72V.

Furthermore, the rotation angle range of the filter plate 3 is 0-360 degrees, and the outer wall of the filter plate 3 is coated with an insulating coating.

The utility model discloses a theory of operation and use flow: when the device is used, a user switches on the device, then the switch 10 is turned on, the exhaust fan 7 pumps air, dust-containing air enters the detection tube 5 through the air inlet pipe 4, the laser emitter 2 emits laser light and enters the detection tube 5, parallel light in the detection tube 5 and the field of view of the light receiving part are crossed at a right angle to form a sensitive area, when dust passes through the sensitive area, scattered light in the ninety-degree direction penetrates through the slit and enters the photomultiplier 5 to be converted into photocurrent, the photocurrent is converted into the pulse number in unit time in direct proportion to the scattered light through the photocurrent integration circuit, the relative mass concentration of the dust can be obtained by recording the pulse number in unit time, the numerical value is transmitted to the controller 1, the controller 1 controls the display screen 12 to display the numerical value, the air flows to the second guide pipe 11 from the first guide pipe 6, and is discharged from the third guide pipe 111, and the.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dust concentration automatic checkout device in operational environment, includes box (9), support (8), its characterized in that are installed to the bottom of box (9): intake pipe (4) are installed to one side of box (9), and the one end of intake pipe (4) extends to the internally mounted of box (9) and has detecting tube (5), photomultiplier (51) are installed to the bottom of detecting tube (5), axle bed (13) are installed to the outer wall of intake pipe (4), one side of axle bed (13) is rotated through the pivot and is connected with filter (3), and the internally mounted of filter (3) has heater strip (14).

2. The automatic dust concentration detection device in a working environment according to claim 1, characterized in that: air exhauster (7) are installed to the inside bottom of box (9), and first pipe (6) are installed to one side of air exhauster (7), second pipe (11) are installed to the one end of first pipe (6), and third pipe (111) are installed to the below of second pipe (11).

3. The automatic dust concentration detection device in a working environment according to claim 1, characterized in that: the inside of box (9) is close to the below position department of detecting tube (5) and installs laser emitter (2), and controller (1) is installed to one side of laser emitter (2).

4. The automatic dust concentration detection device in a working environment according to claim 3, characterized in that: the front surface mounting of box (9) has display screen (12), and switch (10) are installed to the below of display screen (12), air exhauster (7), photomultiplier (51), heater strip (14) and laser emitter (2) all with controller (1) electric connection, controller (1) and switch (10) electric connection.

5. The automatic dust concentration detection device in a working environment according to claim 1, characterized in that: the rotation angle range of the filter plate (3) is 0-360 degrees, and the outer wall of the filter plate (3) is coated with an insulating coating.