CN217111957U

CN217111957U - PM raise dust monitoring facilities

Info

Publication number: CN217111957U
Application number: CN202220782987.7U
Authority: CN
Inventors: 潘林伟; 张卓伟; 王希
Original assignee: Hebei Lengchuang Technology Co ltd
Current assignee: Hebei Lengchuang Technology Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-08-02
Anticipated expiration: 2032-04-07

Abstract

The utility model discloses a PM raise dust monitoring facilities, including the monitoring facilities shell, locate inside PM detection mounting box and the preprocessing module of monitoring facilities shell, PM detects mounting box both sides outer wall upper portion and lower part and all is provided with the check out test set fixed block, and it has the bolt hole to open on the check out test set fixed block, the preprocessing module inlays the dress and detects the mounting box top through the screw fixation in PM. The utility model discloses a technique of second grade heating, the air that makes to flow into preprocessing device can heat twice, through the mode to the air heating in the inflow device, can effectively prevent the water smoke influence in rain and the high humid weather, help the raise dust sensor to realize the best performance under outdoor full scene, the air runner is "S" shape structure, the dwell time of air in the air runner has been improved, conveniently fully heat, adopt two PM detection module, detection effect is more accurate.

Description

PM raise dust monitoring facilities

Technical Field

The utility model relates to a PM raise dust monitoring technology field especially relates to PM raise dust monitoring facilities.

Background

The PM raise dust monitoring equipment has the working principle that suspended particles in air are measured by a laser scattering method, suspended particles with the particle size of more than 0.3um can be effectively detected by a mathematical model, real PM2.5 and PM10 values can be finally obtained by a complex mathematical algorithm, and dust adsorbed by static electricity can be immunized, so far, the reliability of the light scattering method is relatively low, however, a probe of the laser scattering principle is relatively cheap, the probe is easy to install, is relatively suitable for monitoring application, has more advantages compared with other principles, an application provider has better quality, and is relatively stable and sensitive, and the data reliability is greatly improved. Real-time response and support continuous collection and brand-new patent structure, six all-round shielding, the interference killing feature is stronger, and light scattering method is mature and common in application on the market at present, is the better selection of pm2.5 monitoring.

PM raise dust monitoring facilities of laser scattering method detects can receive the influence of the water smoke in the air, the technical difficulty of present PM raise dust monitoring module lies in that the device of pretreatment module can't reach the effect of thoroughly dehumidifying, if PM raise dust monitoring facilities is detecting the suspended particles thing in the air, there is the requirement to air humidity, if air humidity is too big, will lead to the dust collection appearance to be influential to air suspended particles thing analysis result, current like raise dust sensor does not handle the air humidity that needs to detect, like this when air humidity is higher, just can't accomplish continuous high quality on-line measuring to the suspended particles thing in the air, and lead to the error great.

The detection precision of the existing dust detection module is influenced by water mist, the heating and dehumidifying effect of the existing dust sensor pretreatment device cannot reach the thorough dehumidifying effect, and the following two points are provided for the reason:

1. the contact area of the air flowing into the module and the heating sheet is insufficient;

2. the primary heating dehumidification effect is not thorough.

In order to make the novel raise dust sensor gas heating dehumidification module reach better dehumidification effect, the following problem that needs to solve:

1. adopting multi-stage heating;

2. an airflow circuit inside the module is added, so that the contact area of air and the heating sheet is more sufficient;

3. the sealing performance of the heating sheet is increased, and the phenomenon of air leakage is prevented.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the PM raise dust monitoring facilities who proposes for improve PM detection module's accuracy and preprocessing device's dehumidification effect, reduce product operation consumption, equipment product size, weight all reduce portable and remove, make PM detection module's life longer, make the product application more extensive, it is higher to be suitable for the environment ability, it is more reliable to detect data, use user experience and promote comprehensively, satisfy many-sided demand of customer.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

PM raise dust monitoring facilities, locate monitoring facilities shell inside PM including monitoring facilities shell, cover and detect mounting box and preprocessing module, PM detects mounting box both sides outer wall upper portion and lower part and all is provided with the check out test set fixed block, and it has the bolt hole to open on the check out test set fixed block, preprocessing module inlays the dress and detects the mounting box top through the screw fixation in PM, preprocessing module includes the adhesive tape draw-in groove, two heating plate draw-in grooves that are fixed in respectively on the inner wall of adhesive tape draw-in groove both sides and the heating plate of pegging graft in the heating plate draw-in groove, PM detects and is fixed with two PM detection module on the inner wall of mounting box, and installs the air pump on the bottom inner wall of PM detection mounting box.

Preferably, the upper portion and the lower part of monitoring facilities shell both sides outer wall all open there are the opening, and four check out test set fixed blocks extend to the monitoring facilities shell outside through the opening.

Preferably, the top of the PM detection mounting box is provided with a mounting opening, and the inner wall of the bottom of the mounting opening is welded with threaded columns distributed at equal intervals.

Preferably, the outer walls of the four sides of the rubber strip clamping groove are provided with through holes distributed at equal intervals, the threaded column is inserted into the through holes, and the threaded column is screwed with nuts.

Preferably, an air flow channel is formed between the adhesive tape clamping groove and the two heating sheet clamping grooves, and the air flow channel is of an S-shaped structure.

Preferably, an air inlet is formed at the top position of the monitoring device shell, and the air inlet is communicated with the air flow channel through a conduit.

Preferably, the PM detects the bottom inner wall of mounting box top and adhesive tape draw-in groove and all opens there is the inlet port, and two inlet ports communicate each other.

The utility model has the advantages that:

1. the air flowing into the pretreatment device can be heated twice by adopting a secondary heating technology, and the influence of water mist in rainy and high-humidity weather can be effectively prevented by heating the air flowing into the device, so that the dust raising sensor is helped to realize the optimal performance in outdoor whole scenes;

2. the air runner is "S" shape structure, has improved the dwell time of air in the air runner, conveniently carries out the abundant heating, adopts two PM detection module, when a PM detection module appears unusually because dust blocks up or other reasons, changes another PM detection module automatically and detects, and detection effect is more accurate.

Drawings

Fig. 1 is a schematic perspective structural view of a PM dusting monitoring device according to the present invention;

fig. 2 is the utility model provides a PM raise dust monitoring facilities's preprocessing module overlooks the structure schematic diagram.

In the figure: the device comprises a monitoring device shell 1, a preprocessing module 2, a detection device fixing block 3, a PM detection mounting box 4, a PM detection module 5, an air pump 6, a heating plate clamping groove 7, an air flow channel 8, an adhesive tape clamping groove 9, an air inlet 10 and an air inlet 11.

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.

Embodiment 1, referring to fig. 1-2, a PM flying dust monitoring device includes a monitoring device housing 1, a PM detection installation box 4 and a pretreatment module 2, wherein the PM detection installation box is sleeved inside the monitoring device housing 1;

the upper part and the lower part of the outer wall of each side of the PM detection mounting box 4 are respectively provided with a detection device fixing block 3, the detection device fixing blocks 3 are provided with bolt holes, and the pretreatment module 2 is embedded and fixed on the top of the PM detection mounting box 4 through screws;

the pretreatment module 2 comprises an adhesive tape clamping groove 9, two heating sheet clamping grooves 7 respectively fixed on the inner walls of two sides of the adhesive tape clamping groove 9 and heating sheets inserted in the heating sheet clamping grooves 7, the adhesive tape clamping groove 9 between the cover and the PM detection mounting box 4 has a sealing and waterproof function, a two-stage heating technology is adopted, so that air flowing into the pretreatment device can be heated twice, and the influence of water mist in rainy and high-humidity weather can be effectively prevented by heating the air flowing into the device, so that the dust sensor is helped to realize the optimal performance of the dust sensor in outdoor whole scenes;

two PM detection modules 5 are fixed on the inner wall of the PM detection mounting box 4, the detection principle is a laser scattering method, two PM detection modules 5 are adopted, and when one PM detection module 5 is abnormal due to dust blockage or other reasons, the other PM detection module 5 is automatically replaced for detection;

an air pump 6 is installed on the inner wall of the bottom of the PM detection installation box 4, the air pump 6 adopts 12V power supply, and outside air is pumped into the PM detection installation box 4 through the air pump 6.

Embodiment 2, the upper portion and the lower part of monitoring facilities shell 1 both sides outer wall all open there are the opening, and four check out test set fixed blocks 3 extend to the monitoring facilities shell 1 outside through the opening.

The top of the PM detection mounting box 4 is provided with a mounting opening, and the inner wall at the bottom of the mounting opening is welded with threaded columns distributed at equal intervals.

Through holes distributed at equal intervals are formed in the outer walls of the four sides of the rubber strip clamping groove 9, threaded columns are inserted into the through holes, and nuts are screwed on the threaded columns.

An air flow channel 8 is formed between the adhesive tape clamping groove 9 and the two heating sheet clamping grooves 7, and the air flow channel 8 is of an S-shaped structure.

An air inlet 11 is formed in the top of the monitoring device shell 1, and the air inlet 11 is communicated with the air flow channel 8 through a conduit.

The air inlets 10 are formed in the top of the PM detection mounting box 4 and the inner wall of the bottom of the rubber strip clamping groove 9, and the two air inlets 10 are communicated with each other.

The working principle is as follows: during the use, through air pump 6 with outside air through air inlet 11, pipe, suction in the air runner 8, heat the air through two heating plates in the air runner 8, effectively reduce the water smoke influence in rainy and the high humid weather, the air gets into and detects through PM detection module 5 in the PM detects the mounting box 4, when a PM detection module 5 appears unusually because dust blocks up or other reasons, another PM detection module 5 of automatic replacement detects.

The above, only be the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is familiar with the technical field of the present invention in the technical scope of the scheme of the present invention, according to the technical scheme of the present invention and the utility model thereof, the concept of the present invention is equivalent to replace or change, and all should be covered in the protection scope of the present invention.

Claims

PM raise dust monitoring equipment comprises a monitoring equipment shell (1), a PM detection mounting box (4) and a pretreatment module (2) which are arranged in the monitoring equipment shell (1), it is characterized in that the upper part and the lower part of the outer wall at both sides of the PM detection mounting box (4) are respectively provided with a detection device fixing block (3), the detection device fixing block (3) is provided with a bolt hole, the pretreatment module (2) is embedded and fixed on the top of the PM detection mounting box (4) through screws, the pretreatment module (2) comprises an adhesive tape clamping groove (9), two heating sheet clamping grooves (7) which are respectively fixed on the inner walls of the two sides of the adhesive tape clamping groove (9) and heating sheets which are inserted in the heating sheet clamping grooves (7), two PM detection modules (5) are fixed on the inner wall of the PM detection mounting box (4), and an air pump (6) is arranged on the inner wall of the bottom of the PM detection mounting box (4).
2. A PM dusting monitoring device according to claim 1 whereby the upper and lower part of the outer walls at both sides of the monitoring device housing (1) are open and four detection device holding blocks (3) extend through the openings to the outside of the monitoring device housing (1).
3. The PM flying dust monitoring device according to claim 1, wherein a mounting opening is formed in the top of the PM detecting mounting box (4), and threaded columns distributed at equal intervals are welded on the inner wall of the bottom of the mounting opening.
4. The PM raise dust monitoring equipment according to claim 2, wherein the outer walls of the four sides of the rubber strip clamping groove (9) are provided with through holes distributed at equal intervals, a threaded column is inserted into the through holes, and a nut is screwed on the threaded column.
5. A PM dusting monitoring device according to claim 1, characterized in that an air flow channel (8) is formed between the rubber strip slot (9) and the two heating sheet slots (7), and the air flow channel (8) is of an "S" shaped structure.
6. A PM dusting monitoring device according to claim 1, characterized in that the monitoring device housing (1) is opened at its top position with an air inlet (11), and that the air inlet (11) is in communication with the air flow channel (8) via a conduit.
7. A PM raise dust monitoring equipment according to claim 1, characterized in that the top of the PM detection mounting box (4) and the inner wall of the bottom of the rubber strip clamping groove (9) are both provided with air inlet holes (10), and the two air inlet holes (10) are communicated with each other.