CN214622199U

CN214622199U - Portable particulate matter detector

Info

Publication number: CN214622199U
Application number: CN202120553069.2U
Authority: CN
Inventors: 苏红时
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-11-05
Anticipated expiration: 2031-03-17

Abstract

The utility model relates to an empty gas detection surveys technical field, and discloses a portable particulate matter detector. A portable particulate matter detector comprises a box body assembly, wherein a detection mechanism is arranged inside the box body assembly; the utility model discloses a set up first pipe in the mechanism, first control valve, three way connection, the intake pipe, the filter, the second pipe, the second control valve, the dehumidification structure, thereby can be right after detecting the completion at every turn, close first control valve, open the second control valve, close the valve, start the air pump, inhale the filter with external air through the intake pipe inside, inside filter the back and advancing in proper order through the second pipe, three way connection enters into the inside of barrel and carries out the drying, after indicator colour change reaction, open the valve, utilize the dustless air current of filtration back to carry out cleaning operation to particulate matter detector and some tubulations, thereby the artifical clear trouble has been avoided, guarantee to detect the accuracy of making next time simultaneously.

Description

Portable particulate matter detector

Technical Field

The utility model relates to an empty gas detection surveys technical field, specifically is a portable particulate matter detector.

Background

In recent years, the environmental air pollution characteristics are remarkably changed, the air particulate matters are more and more polluted, the problem of regional air pollution is more and more prominent, composite air pollution events such as dust haze, photochemical smog and acid rain frequently occur, and particularly, the fine particle pollution is obvious to attract attention of people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable particulate matter detector reaches and makes particulate matter detector possess the self-cleaning function, improves the purpose of particulate matter detector accuracy.

In order to achieve the above object, the utility model provides a following technical scheme: a portable particulate matter detector comprises a box body assembly, wherein a detection mechanism is arranged inside the box body assembly;

the detection mechanism comprises a sampling head, a sampling pipe, a first conduit, a three-way joint, an air inlet pipe, a filter, a second conduit, a dehumidification mechanism, a particulate matter detector, an air pump and an air outlet pipe, the sampling head is fixedly arranged at the top of the sampling pipe, one end of the first conduit is communicated with the sampling pipe, the other end of the first conduit is communicated with a three-way joint, the air inlet of the filter is communicated with an air inlet pipe through a pipeline, one end of the second conduit is communicated with the air outlet of the filter, the other end of the second conduit is communicated with the three-way joint, one end of the dehumidifying mechanism is communicated with the three-way joint, the other end of the dehumidifying mechanism is communicated with the particle detector, the air inlet of the air pump is communicated with the particulate matter detector through a pipeline, and the air outlet pipe is communicated with the air outlet of the air pump.

Preferably, the box subassembly includes the box, the right side of box is provided with operating panel, the right side of box is provided with the observation window, four corners of bottom half are provided with respectively and remove the wheel, are convenient for control whole detection device's operation through operating panel, observe the inside dry condition of barrel through the observation window to ensure the accuracy that detection device detected.

Preferably, sampling pipe fixed mounting is at the top of box, just sampling pipe passes through threaded connection with the box, the intake pipe runs through the top of box, the right side of box is run through to the outlet duct, dehumidification mechanism sets up in the inside of box, and threaded connection's sampling pipe is convenient for the installation and the dismantlement of sampling pipe, from the volume that can the whole detection device of shock attenuation to the convenience is transported detection device.

Preferably, the middle part of first pipe is provided with first control valve, the middle part of second pipe is provided with the second control valve, through the cooperation of first control valve and second control valve, is convenient for carry out cleaning operation after having carried out detection operation at every turn to guarantee the accuracy of next detection, avoided artifical regularly clear trouble simultaneously.

Preferably, dehumidification mechanism includes that barrel, spiral heating pipe, indicator hold groove, baffle, the top of barrel is provided with the air inlet, spiral heating pipe fixed mounting is on the upper portion of barrel inner chamber, indicator holds groove fixed mounting on the upper portion of barrel inner chamber, baffle fixed mounting is at the middle part of barrel inner chamber, the bottom of barrel is provided with the gas outlet, utilizes dehumidification mechanism will ensure the proportion of moisture in the air, further improves the accuracy of detection device testing result.

Preferably, barrel fixed mounting is in the left side of box inner chamber, just the position on barrel upper portion corresponds the position setting of observation window, the barrel passes through air inlet and three way connection intercommunication setting, the barrel passes through the gas outlet and sets up with particulate matter detector intercommunication, sets up the barrel in the left side of box inner chamber, is convenient for observe the change of indicator holding inslot portion indicator colour through the observation window to ensure the roughly condition of water content in the detection air, thereby ensure the accuracy of testing result.

Preferably, the reagent that holds of indicator holding tank is color-changing silica gel, the middle part of baffle is provided with the valve, adopts color-changing silica gel as knowledge, is convenient for observe the roughly content of the inside moisture of air, accords with the testing condition after, opens the valve again, with the inside leading-in particulate matter detector of the inside air of barrel inside detect to ensure whole testing process's accuracy.

The utility model provides a portable particulate matter detector. The method has the following beneficial effects:

(1) the utility model discloses a set up first pipe in the mechanism, first control valve, three way connection, the intake pipe, the filter, the second pipe, the second control valve, the dehumidification structure, thereby can be right after detecting the completion at every turn, close first control valve, open the second control valve, close the valve, start the air pump, inhale the filter with external air through the intake pipe inside, inside filter the back and advancing in proper order through the second pipe, three way connection enters into the inside of barrel and carries out the drying, after indicator colour change reaction, open the valve, utilize the dustless air current of filtration back to carry out cleaning operation to particulate matter detector and some tubulations, thereby the artifical clear trouble has been avoided, guarantee simultaneously that the accuracy of making is detected next time.

(2) The utility model discloses a set up dehumidification mechanism in detection mechanism's inside and carry out dehumidification operation before detecting the air particulate matter, avoid the air to cross wet or the temperature crosses the precision that leads to the testing result low excessively to reduce, in dehumidification mechanism, the change of controlling humidity is known through the change of indicator colour, thereby ensure the aridity of leading-in particulate matter detector air, the accuracy of testing result has not only been ensured, corrosive substance has been avoided to the particulate matter detector to cause the harm to liquid, the life of whole device has been prolonged.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the front cross-sectional structure of the present invention;

fig. 4 is a schematic view of the front section structure of the dehumidifying mechanism of the present invention.

In the figure: 1 box body assembly, 101 box body, 102 operating panel, 103 through window, 104 moving wheel, 2 detection mechanism, 201 sampling head, 202 sampling pipe, 203 first pipe, 204 first control valve, 205 three-way joint, 206 air inlet pipe, 207 filter, 208 second pipe, 209 second control valve, 210 dehumidification mechanism, 2101 cylinder body, 2102 air inlet, 2103 spiral heating pipe, 2104 indicator holding tank, 2105 baffle, 2106 valve, 2107 air outlet, 211 particulate matter detector, 212 air pump, 213 air outlet pipe.

Detailed Description

As shown in fig. 1-4, the utility model provides a technical solution: a portable particulate matter detector comprises a box body component 1, wherein the box body component 1 comprises a box body 101, an operation panel 102 is arranged on the right side of the box body 101, an observation window 103 is arranged on the right side of the box body 101, moving wheels 104 are respectively arranged at four corners of the bottom of the box body 101, and a detection mechanism 2 is arranged inside the box body component 1;

the detection mechanism 2 comprises a sampling head 201, a sampling pipe 202, a first conduit 203, a three-way joint 205, an air inlet pipe 206, a filter 207, a second conduit 208, a dehumidification mechanism 210, a particulate matter detector 211, an air pump 212 and an air outlet pipe 213, wherein the sampling head 201 is fixedly arranged at the top of the sampling pipe 202, the sampling pipe 202 is fixedly arranged at the top of the box body 101, the sampling pipe 202 is connected with the box body 101 through threads, one end of the first conduit 203 is communicated with the sampling pipe 202, the other end of the first conduit 203 is communicated with the three-way joint 205, a first control valve 204 is arranged in the middle of the first conduit 203, an air inlet of the filter 207 is communicated with the air inlet pipe 206 through a pipeline, the air inlet pipe 206 penetrates through the top of the box body 101, one end of the second conduit 208 is communicated with an air outlet of the filter 207, the other end of the second conduit 208 is communicated with the three-way joint 205, a second control valve 209 is arranged in the middle of the second conduit 208, one end of a dehumidifying mechanism 210 is communicated with a three-way joint 205, the other end of the dehumidifying mechanism 210 is communicated with a particulate matter detector 211, the dehumidifying mechanism 210 is arranged in a box 101, the dehumidifying mechanism 210 comprises a cylinder 2101, a spiral heating pipe 2103, an indicator containing groove 2104 and a partition 2105, an air inlet 2102 is arranged at the top of the cylinder 2101, the spiral heating pipe 2103 is fixedly arranged at the upper part of the inner cavity of the cylinder 2101, the indicator containing groove 2104 is fixedly arranged at the upper part of the inner cavity of the cylinder 2101, the reagent contained in the indicator containing groove 2104 is allochroic silicagel, the partition 2105 is fixedly arranged at the middle part of the inner cavity of the cylinder 2101, a valve 2106 is arranged at the middle part of the partition 2105, an air outlet 7 is arranged at the bottom of the cylinder 2101, the cylinder 2101 is fixedly arranged at the left side of the inner cavity of the box 101, the position at the upper part of the cylinder 2101 corresponds to the position of an observation window 103, the cylinder 2101 is communicated with the three-way joint 205 through the air inlet 2102, the cylinder 2101 is communicated with the particulate matter detector 211 through the air outlet 2107, the dehumidifying mechanism 210 is arranged in the detecting mechanism 2 to perform dehumidifying operation before detecting the particulate matter in the air, so that the reduction of the precision of a detection result caused by over-humidity or over-low temperature of the air is avoided, in the dehumidifying mechanism 210, the change of control humidity is known through the change of the color of the indicator, the dryness of the air led into the particulate matter detector 211 is ensured, the accuracy of the detection result is ensured, the corrosive substance is prevented from damaging the particulate matter detector 211, the service life of the whole device is prolonged, the air inlet of the air pump 212 is communicated with the particulate matter detector 211 through a pipeline, the air outlet pipe 213 is communicated with the air outlet of the air pump 212, the air outlet pipe 213 penetrates through the right side of the box body 101, and the first guide pipe 203, the first control valve 204, the air outlet 213 and the air outlet are arranged in the mechanism 2, Three way connection 205, intake pipe 206, filter 207, second pipe 208, second control valve 209, dehumidification structure 210, it is right after can detecting at every turn, close first control valve 204, open second control valve 209, close valve 2106, start air pump 212, inhale filter 207 inside through intake pipe 206 with external air, filter in 207 inside and advance and pass through second pipe 208 in proper order, three way connection 205 enters the inside of barrel 2101 and dries, after indicator color change reaction, open valve 2106, utilize the dustless air current of back filtration to carry out cleaning operation to particulate matter detector 211 and some tubulations, thereby avoided the trouble of artifical cleanness, guarantee the accuracy of the next time detection manufacture simultaneously.

When the device is used, firstly, the detection device is started through the operation panel 102, the air pump 212 starts to work, at the moment, the first control valve 204 is opened, the second control valve 209 is closed, the valve 2106 is closed, the air at the detection position sequentially passes through the sampling head 201 and the sampling pipe 202, the first conduit 203 and the three-way joint 205 enter the upper part of the inner cavity of the cylinder 2101, meanwhile, the allochroic silica gel in the indicator containing groove 2104 and the water in the air are adsorbed to generate color change, then, the spiral heating pipe 2103 starts to heat and dehumidify the air, the color of the indicator is restored, then, the valve 2106 is opened, the dried air can be guided into the particulate matter detector 211 to be detected, the air is discharged through the air outlet pipe 213 after the detection is finished, the whole detection operation is finished, after the whole detection operation is finished, the first control valve 204 is closed, the second control valve 209 is opened, the valve 2106 is closed, the air pump 212 is started, outside air is sucked into the filter 207 through the air inlet pipe 206, the air is filtered inside the filter 207 and then sequentially passes through the second guide pipe 208, the tee joint 205 enters the barrel 2101 for drying, after the color change reaction of the indicator, the valve 2106 is opened, and the particle detector 211 and a plurality of pipelines are cleaned by using dust-free airflow after filtering, so that the trouble of manual cleaning is avoided, and the accuracy of next detection and manufacturing is ensured.

Claims

1. A portable particulate matter detector, includes box subassembly (1), its characterized in that: a detection mechanism (2) is arranged in the box body assembly (1);

the detection mechanism (2) comprises a sampling head (201), a sampling pipe (202), a first conduit (203), a three-way joint (205), an air inlet pipe (206), a filter (207), a second conduit (208), a dehumidification mechanism (210), a particulate matter detector (211), an air pump (212) and an air outlet pipe (213), the sampling head (201) is fixedly installed at the top of the sampling pipe (202), one end of the first conduit (203) is communicated with the sampling pipe (202), the other end of the first conduit (203) is communicated with the three-way joint (205), an air inlet of the filter (207) is communicated with the air inlet pipe (206) through a pipeline, one end of the second conduit (208) is communicated with an air outlet of the filter (207), the other end of the second conduit (208) is communicated with the three-way joint (205), one end of the dehumidification mechanism (210) is communicated with the three-way joint (205), the other end and the particulate matter detector (211) intercommunication setting of dehumidification mechanism (210), the air inlet of air pump (212) passes through the pipeline and sets up with particulate matter detector (211) intercommunication, outlet duct (213) and the gas vent intercommunication setting of air pump (212).

2. The portable particulate matter detector of claim 1, wherein: the box body assembly (1) comprises a box body (101), an operation panel (102) is arranged on the right side of the box body (101), an observation window (103) is arranged on the right side of the box body (101), and moving wheels (104) are arranged at four corners of the bottom of the box body (101) respectively.

3. The portable particulate matter detector of claim 2, wherein: sampling pipe (202) fixed mounting is at the top of box (101), just sampling pipe (202) and box (101) pass through threaded connection, intake pipe (206) run through the top of box (101), outlet duct (213) run through the right side of box (101), dehumidification mechanism (210) set up the inside at box (101).

4. The portable particulate matter detector of claim 1, wherein: a first control valve (204) is arranged in the middle of the first guide pipe (203), and a second control valve (209) is arranged in the middle of the second guide pipe (208).

5. A portable particulate matter detector according to claim 3, wherein: dehumidification mechanism (210) include barrel (2101), spiral heating pipe (2103), indicator hold groove (2104), baffle (2105), the top of barrel (2101) is provided with air inlet (2102), spiral heating pipe (2103) fixed mounting is on the upper portion of barrel (2101) inner chamber, indicator holds groove (2104) fixed mounting in the upper portion of barrel (2101) inner chamber, baffle (2105) fixed mounting is in the middle part of barrel (2101) inner chamber, the bottom of barrel (2101) is provided with gas outlet (2107).

6. The portable particulate matter detector of claim 5, wherein: the barrel (2101) is fixedly installed on the left side of an inner cavity of the box body (101), the upper portion of the barrel (2101) is arranged corresponding to the position of the observation window (103), the barrel (2101) is communicated with the three-way joint (205) through the air inlet (2102), and the barrel (2101) is communicated with the particle detector (211) through the air outlet (2107).

7. The portable particulate matter detector of claim 5, wherein: the reagent that holds of indicator holding tank (2104) is color-changing silica gel, the middle part of baffle (2105) is provided with valve (2106).