CN215598946U

CN215598946U - Dual-channel gas quality monitoring system

Info

Publication number: CN215598946U
Application number: CN202022054626.4U
Authority: CN
Inventors: 景春雷; 李冰; 杨国林; 赵恩泽; 张雪红
Original assignee: Shijiazhuang Zhaorong Technology Co ltd
Current assignee: Shijiazhuang Zhaorong Technology Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2022-01-21
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a dual-channel gas quality monitoring system, which comprises a PM10 cutter, wherein the output end of the PM10 cutter is connected to a flow divider; one output end of the flow divider is connected to the PM2.5 cutter; a PM2.5 heating pipe is arranged at the output end of the PM2.5 cutter; the other output end of the flow divider is connected to a PM10 heating pipe; the PM2.5 heating pipe and the PM10 heating pipe are fixed on the top surface of the detection machine body; the PM2.5 heating pipe is connected to the upper sampling body assembly through a straight pipe; the PM10 heating tube is connected to the upper sampling body component through an inclined tube; a lower sampling body assembly is arranged right below the upper sampling body assembly; a paper tape is movably pressed between the upper sampling body assembly and the lower sampling body assembly; according to the two-channel gas quality monitoring system, the laser particulate matter monitoring unit dynamically outputs the acquired data in real time, and the beta-ray particulate matter monitoring unit outputs the acquired data in a static state at regular intervals; the timeliness of the detection data can be guaranteed, and meanwhile the accuracy of the monitoring data is guaranteed.

Description

Dual-channel gas quality monitoring system

Technical Field

The utility model relates to a two-channel gas quality monitoring system, and belongs to the technical field of monitoring equipment.

Background

Common monitoring methods for atmospheric particulates are: manual weighing, beta-ray, oscillating microbalance; the principle of the beta-ray method is that after beta-rays penetrate through a substance to be measured, the intensity attenuation degree of the beta-rays is only related to the mass of the penetrated substance and is not related to the physical and chemical properties of the penetrated substance; the beta-ray method has the advantages that the required sample amount is small, one monitoring data can be automatically obtained every hour, the change condition of the concentration of the particulate matters in the air can be reflected in real time, data transmission can be carried out, remote monitoring and automatic control are facilitated, and the manual workload is greatly reduced; the beta ray method has become one of the main measuring methods of a continuous automatic monitor for the concentration of particulate matters in the atmospheric environment; however, the existing beta-ray method has the defects of single detection data and low detection efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a two-channel gas quality monitoring system which can realize the detection of PM2.5 and PM10 by adopting two-channel detection.

The dual-channel gas quality monitoring system comprises a PM10 cutter, wherein the output end of the PM10 cutter is connected to a flow divider; one output end of the flow divider is connected to the PM2.5 cutter; a PM2.5 heating pipe is arranged at the output end of the PM2.5 cutter; the other output end of the flow divider is connected to a PM10 heating pipe; the PM2.5 heating pipe and the PM10 heating pipe are fixed on the top surface of the detection machine body; the PM2.5 heating pipe is connected to the upper sampling body assembly through a straight pipe; the PM10 heating tube is connected to the upper sampling body component through an inclined tube; a lower sampling body assembly is arranged right below the upper sampling body assembly; a paper tape is movably pressed between the upper sampling body assembly and the lower sampling body assembly; two ends of the paper tape are wound on the driving paper tray assembly and the driven paper tray assembly respectively; the driving paper tray assembly and the driven paper tray assembly are movably arranged on the sliding plate assembly; a display screen is arranged on the detection machine body; the display screen is electrically connected to a controller which is used for controlling the whole machine and arranged in the detection machine body; the PM10 cutter is a PM10 sampler, gas enters through a sampling head, enters a flow divider through a PM10 cutter, gas particulate matters are divided into two paths through the flow divider, one path is PM10 particulate matters, the other path cuts PM2.5 particulate matters in the air out through the PM2.5 cutter and enters an air path, the two paths of gas enter an upper sampling body, the particulate matters are left on a paper tape through the paper tape, a lower sampling body is provided with a beta source on a PM10 air path, a porch pipe and the beta source detect PM10 blank spots first during operation, then the lower sampling body descends, the paper tape is loosened, the sliding plate assembly drives the paper tape to move to one side away from a PM2.5 monitoring end and is positioned to the PM2.5 blank spots, the lower sampling body ascends, the paper tape is pressed to detect the PM2.5 spots, then the lower sampling body descends again, the paper tape is loosened, the sliding plate assembly is moved to reset, the lower sampling body ascends to start sampling, the sampling is carried out, the porch pipe detects PM10 sampling spots first after sampling, after the PM2.5 sampling is finished, the lower sampling body descends, the paper tape is loosened, the sliding plate assembly drives the paper tape to move to the position far away from the PM2.5 monitoring end, spots are detected after the PM2.5 sampling is finished, and the next round of detection is carried out; the sliding plate component comprises two linear guide rails fixed on a mounting plate of the detection machine body, and the two linear guide rails are arranged oppositely up and down; and a guide rail slide block arranged on the linear guide rail in a sliding way; and a sliding plate fixed with the guide rail sliding block; the driving paper tray assembly and the driven paper tray assembly are fixed on the sliding plate; the bottom of the sliding plate is fixed with a sliding block of the electric sliding table fixed at the lower part of the mounting plate through a sliding plate bracket, and a sliding plate positioning sheet is fixed on the back surface of the sliding plate; a positioning photoelectric proximity switch is arranged on the back surface of the mounting plate and right above the sliding plate positioning sheet; when the sliding platform moves, the sliding block of the electric sliding platform drives the sliding plate bracket to slide, and the sliding plate bracket drives the sliding plate to slide; the guide rail sliding block on the sliding plate slides along the linear guide rail; thereby driving the driving paper tray assembly and the driven paper tray assembly to slide, and positioning through the two positioning photoelectric proximity switches in the sliding process, thereby realizing the moving positioning; the upper sampling body assembly comprises an upper sampling body, and an air inlet channel of a PM2.5 heating pipe and an air inlet channel of a PM10 heating pipe are arranged inside the upper sampling body; a riparian pipe which is parallel to the air inlet channel of the PM2.5 heating pipe and is communicated with the air inlet channel of the PM10 heating pipe is embedded in the upper sampling body; an upper gasket is arranged at the bottom of the upper sampling body; the lower sampling body assembly comprises a lower sampling body and a two-way sampling head which is movably arranged on the inner side of the lower sampling body and driven by the eccentric shaft assembly to move up and down; the top of the double-pass sampling head is provided with a lower gasket which is pressed with the upper gasket; a PM2.5 pipeline and a PM10 pipeline are arranged on the inner side of the two-way sampling head, and face the PM2.5 heating pipe air inlet channel and the PM10 heating pipe air inlet channel; a beta source assembly is arranged inside the PM10 pipeline; the eccentric shaft assembly is connected to a motor through a coupler; gas containing particulate matters in the PM2.5 heating pipe and the PM10 heating pipe enters an air inlet channel of the PM2.5 heating pipe and an air inlet channel of the PM10 heating pipe, when the eccentric shaft assembly drives the two-way sampling head to press upwards, the upper gasket and the lower gasket are pressed tightly, the upper gasket and the lower gasket press the paper tape tightly, the gas passes through the paper tape, the particulate matters of the gas stop on the paper tape, and the gas is discharged outside through the PM2.5 pipeline and the PM10 pipeline; the cuckoo tube and the beta source detect the particles on the paper tape.

Furthermore, the driven paper tray assembly comprises a friction shaft with a threaded structure at two ends, and a seven-star handle and a compression nut which are respectively screwed at two ends of the friction shaft; the friction shaft sequentially penetrates through a front paper tape baffle plate, a blocking piece, a shaft block, a rear paper tape baffle plate, a driven paper disk shaft seat, a friction ring, a friction retaining ring, a compression spring and a spring pressing plate between the seven-star handle and the compression nut; the friction shaft is provided with a positioning chute; a positioning screw is screwed on the friction retainer ring; the positioning screw is arranged in the positioning sliding chute in a sliding manner; the rear paper tape baffle is fixed with the shaft block through a screw; a counter bore is formed in the center of the shaft block; a positioning screw is screwed in the counter bore; the driven paper tray shaft seat is fixed on a mounting plate of the detection machine body through a screw; the outer side of the paper tape is provided with a baffle plate which just blocks the paper tape roll paper cylinder, the outer side baffle plate is provided with a paper tape baffle plate and fixed through a friction shaft, and the friction shaft props against the paper tape baffle plate to drive the baffle plate to tightly press the roll paper cylinder, so that the paper tape roll paper cylinder and the shaft block are prevented from rotating; the spring is adopted to compress to generate friction force to control the damping of the rotation of the paper disc, so that the tightness of the paper tape is controlled, the pressure of the spring is adjustable, and the damping can be controlled more accurately;

preferably, the controller communicates with a remote data platform via a communication module.

Furthermore, the top surface of the detection machine body is also provided with a wind speed sensor, a wind direction sensor and a temperature and humidity sensor.

Further, the detection machine body is fixed on the vertical rod; the upright rods comprise an upper upright rod and a lower upright rod which are arranged by flanges; the upright stanchion is also provided with an LED display screen electrically connected with the controller; a camera support is fixed on the detection machine body, and a camera is mounted on the camera support.

Compared with the prior art, the two-channel gas quality monitoring system has the advantages that the laser particulate matter monitoring unit dynamically outputs the acquired data in real time, and the beta-ray particulate matter monitoring unit periodically outputs the acquired data statically; the timeliness of the detection data can be guaranteed, and meanwhile the accuracy of the monitoring data is guaranteed.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.

Fig. 2 is a front view schematically illustrating the construction of the sliding panel assembly of the present invention.

Fig. 3 is a schematic view of the back side structure of the sliding plate assembly of the present invention.

Fig. 4 is a schematic view of the overall structure of the up-sampling body assembly and the down-sampling body assembly of the present invention.

Figure 5 is a schematic side view of the up-sample assembly and down-sample assembly of the present invention.

Fig. 6 is a schematic view of the structure of the driven tray assembly of the present invention.

FIG. 7 is a schematic view of the installation structure of the inspection machine body, the vertical rod and the optional parts.

Detailed Description

Example 1:

the dual-channel gas quality monitoring system shown in fig. 1 to 6 comprises a PM10 cutter 1, wherein the output end of the PM10 cutter 1 is connected to a flow divider 2; one output end of the flow divider 2 is connected to the PM2.5 cutter 3; a PM2.5 heating pipe 4 is arranged at the output end of the PM2.5 cutter 3; the other output end of the flow divider 2 is connected to a PM10 heating pipe 5; the PM2.5 heating pipe 4 and the PM10 heating pipe 5 are fixed on the top surface of the detection machine body A; the PM2.5 heating pipe 4 is connected to an upper sampling body assembly 7 through a straight pipe; the PM10 heating tube 1 is connected to the upper sampling body assembly 7 through an inclined tube; a lower sampling body assembly 8 is arranged right below the upper sampling body assembly 7; a paper tape 9 is movably pressed between the upper sampling body assembly 7 and the lower sampling body assembly 8; two ends of the paper tape 9 are wound on the driving paper tray assembly 12 and the driven paper tray assembly 10 respectively; the driving paper tray assembly 12 and the driven paper tray assembly 10 are movably arranged on the sliding plate assembly 11; a display screen 13 is arranged on the detection machine body A; the display screen 13 is electrically connected to a controller used for controlling the whole machine in the detection machine body; the PM10 cutter is a PM10 sampler, gas enters through a sampling head, enters a flow divider through a PM10 cutter, gas particulate matters are divided into two paths through the flow divider, one path is PM10 particulate matters, the other path cuts PM2.5 particulate matters in the air out through the PM2.5 cutter and enters an air path, the two paths of gas enter an upper sampling body, the particulate matters are left on a paper tape through a paper tape, a lower sampling body is provided with a beta source on a PM10 air path, a porch pipe and the beta source detect PM10 blank spots first during operation, then the lower sampling body descends, the paper tape is loosened, the sliding plate assembly drives the paper tape to move to a position far away from a PM2.5 monitoring end, the PM2.5 blank spots are positioned, the lower sampling body ascends, the PM2.5 spots are detected by pressing of the paper tape, then the lower sampling body descends again, the paper tape is loosened, the sliding plate assembly is reset, the lower sampling body ascends to start sampling, the sampling is carried out, the PM10 sampling by the porch pipe after sampling, the lower sampling body descends after the sampling is completed, loosening the paper tape, driving the paper tape to move towards the end far away from the PM2.5 monitoring end by the sliding plate assembly, detecting the spot after PM2.5 sampling, and entering the next round of detection after the PM2.5 sampling is finished; the sliding plate assembly 11 comprises two linear guide rails 112 fixed on a mounting plate 111 of the detection machine body, and the two linear guide rails 112 are arranged oppositely up and down; a guide rail slider 113 slidably disposed on the linear guide rail 112; and a sliding plate 114 fixed to the rail slider 113; the driving tray assembly 12 and the driven tray assembly 10 are fixed to the sliding plate 114; the bottom of the sliding plate 114 is fixed with a sliding block of an electric sliding table 116 fixed at the lower part of the mounting plate through a sliding plate bracket 115, and a sliding plate positioning sheet 118 is fixed at the back of the sliding plate 114; a positioning photoelectric proximity switch 117 is arranged on the back surface of the mounting plate and right above the sliding plate positioning sheet 118; a sliding plate positioning sheet 118 movably attached to the positioning photoelectric proximity switch is fixed on the back surface of the sliding plate 114; when the sliding platform moves, the sliding block of the electric sliding platform drives the sliding plate bracket to slide, and the sliding plate bracket drives the sliding plate to slide; the guide rail sliding block on the sliding plate slides along the linear guide rail; thereby driving the driving paper tray assembly and the driven paper tray assembly to slide, and positioning through the two positioning photoelectric proximity switches in the sliding process, thereby realizing the moving positioning; the upper sampling sample body assembly 7 comprises an upper sampling sample body 71, wherein a PM2.5 heating pipe air inlet passage 72 and a PM10 heating pipe air inlet passage 73 are arranged inside the upper sampling sample body 71; the sampling body 71 is embedded with a shimeji tube 74 which is parallel to an air inlet channel of a PM2.5 heating tube and is communicated with an air inlet channel of a PM10 heating tube; the bottom of the upper sampling body 71 is provided with an upper gasket 75; the lower sampling body assembly 8 comprises a lower sampling body and a two-way sampling head 82 which is movably arranged on the inner side of the lower sampling body and driven by an eccentric shaft assembly 81 to move up and down; the top of the double-pass sampling head 82 is provided with a lower gasket 83 which is pressed with the upper gasket; a PM2.5 pipeline 84 and a PM10 pipeline 85 are arranged on the inner side of the two-way sampling head 82, and are opposite to an air inlet channel of a PM2.5 heating pipe and an air inlet channel of a PM10 heating pipe; a beta source assembly 86 is arranged inside the PM10 pipeline 85; the eccentric shaft assembly is connected to a motor 87 through a coupling; gas containing particulate matters in the PM2.5 heating pipe and the PM10 heating pipe enters an air inlet channel of the PM2.5 heating pipe and an air inlet channel of the PM10 heating pipe, when the eccentric shaft assembly drives the lower sampling body to be pressed upwards, the upper gasket and the lower gasket are pressed tightly, the upper gasket and the lower gasket press the paper tape tightly, the gas passes through the paper tape, the particulate matters of the gas stop on the paper tape, and the gas is discharged outside through the PM2.5 pipeline and the PM10 pipeline; the cuckoo tube and the beta source detect the particles on the paper tape.

The driven paper tray assembly 10 comprises a friction shaft 121 with two ends in a threaded structure, and a seven-star handle 122 and a compression nut 123 which are respectively screwed at two ends of the friction shaft; the friction shaft 121 sequentially penetrates through a front paper tape baffle 124, a blocking piece 125, a shaft block 126, a rear paper tape baffle 127, a driven paper tray shaft seat 128, a friction ring 129, a friction retainer ring 1201, a compression spring 1202 and a spring pressing plate 1203 between the seven-star handle and the pressing nut; the friction shaft 121 is provided with a positioning chute; a positioning screw 1204 is screwed on the friction retaining ring 1201; the positioning screw 1204 is slidably arranged in the positioning chute; the rear paper tape baffle 127 is fixed with the shaft block 126 through a screw; a counter bore is formed in the center of the shaft block 126; a positioning screw 1205 is screwed in the counter bore; the driven paper tray shaft seat 128 is fixed on a mounting plate of the detection machine body through a screw; the outer side of the paper tape is provided with a baffle plate which just blocks the paper tape roll paper cylinder, the outer side baffle plate is provided with a paper tape baffle plate and fixed through a friction shaft, and the friction shaft props against the paper tape baffle plate to drive the baffle plate to tightly press the roll paper cylinder, so that the paper tape roll paper cylinder and the shaft block are prevented from rotating; the spring is adopted to compress to generate friction force to control the damping of the rotation of the paper disc, so that the tightness of the paper tape is controlled, the pressure of the spring is adjustable, and the damping can be controlled more accurately; the controller communicates with a remote data platform through a communication module.

Wherein, the top surface of the detection body A is also provided with a wind speed sensor 6, a wind direction sensor 14 and a temperature and humidity sensor 15.

As shown in fig. 7, in another embodiment, the detecting body a is fixed on the vertical rod; the upright rods comprise an upper upright rod 16 and a lower upright rod 17 which are mounted by flanges; the upright stanchion is also provided with an LED display screen 18 electrically connected with the controller; a camera support 19 is fixed on the detection machine body A, and a camera 20 is installed on the camera support 19.

The above-described embodiments are merely preferred embodiments of the present invention, and all equivalent changes or modifications of the structures, features and principles described in the claims of the present invention are included in the scope of the present invention.

Claims

1. A two-channel gas quality monitoring system is characterized in that: a PM10 cutter is included, the output end of the PM10 cutter is connected to the flow divider; one output end of the flow divider is connected to the PM2.5 cutter; a PM2.5 heating pipe is arranged at the output end of the PM2.5 cutter; the other output end of the flow divider is connected to a PM10 heating pipe; the PM2.5 heating pipe and the PM10 heating pipe are fixed on the top surface of the detection machine body; the PM2.5 heating pipe is connected to the upper sampling body assembly through a straight pipe; the PM10 heating tube is connected to the upper sampling body component through an inclined tube; a lower sampling body assembly is arranged right below the upper sampling body assembly; a paper tape is movably pressed between the upper sampling body assembly and the lower sampling body assembly; two ends of the paper tape are wound on the driving paper tray assembly and the driven paper tray assembly respectively; the driving paper tray assembly and the driven paper tray assembly are movably arranged on the sliding plate assembly; a display screen is arranged on the detection machine body; the display screen is electrically connected to a controller which is used for controlling the whole machine and arranged in the detection machine body; the sliding plate component comprises two linear guide rails fixed on a mounting plate of the detection machine body, and the two linear guide rails are arranged oppositely up and down; and a guide rail slide block arranged on the linear guide rail in a sliding way; and a sliding plate fixed with the guide rail sliding block; the driving paper tray assembly and the driven paper tray assembly are fixed on the sliding plate; the bottom of the sliding plate is fixed with a sliding block of the electric sliding table fixed at the lower part of the mounting plate through a sliding plate bracket, and a sliding plate positioning sheet is fixed on the back surface of the sliding plate; a positioning photoelectric proximity switch is arranged on the back surface of the mounting plate and right above the sliding plate positioning sheet; the upper sampling body assembly comprises an upper sampling body, and an air inlet channel of a PM2.5 heating pipe and an air inlet channel of a PM10 heating pipe are arranged inside the upper sampling body; a riparian pipe which is parallel to the air inlet channel of the PM2.5 heating pipe and is communicated with the air inlet channel of the PM10 heating pipe is embedded in the upper sampling body; an upper gasket is arranged at the bottom of the upper sampling body; the lower sampling body assembly comprises a lower sampling body and a two-way sampling head which is movably arranged on the inner side of the lower sampling body and driven by the eccentric shaft assembly to move up and down; the top of the double-pass sampling head is provided with a lower gasket which is pressed with the upper gasket; a PM2.5 pipeline and a PM10 pipeline are arranged on the inner side of the two-way sampling head, and face the PM2.5 heating pipe air inlet channel and the PM10 heating pipe air inlet channel; a beta source assembly is arranged inside the PM10 pipeline; the eccentric shaft assembly is connected to a motor through a coupling.

2. The dual channel gas quality monitoring system of claim 1, wherein: the driven paper tray assembly comprises a friction shaft with thread structures at two ends, and a seven-star handle and a compression nut which are respectively screwed at two ends of the friction shaft; the friction shaft sequentially penetrates through a front paper tape baffle plate, a blocking piece, a shaft block, a rear paper tape baffle plate, a driven paper disk shaft seat, a friction ring, a friction retaining ring, a compression spring and a spring pressing plate between the seven-star handle and the compression nut; the friction shaft is provided with a positioning chute; a positioning screw is screwed on the friction retainer ring; the positioning screw is arranged in the positioning sliding chute in a sliding manner; the rear paper tape baffle is fixed with the shaft block through a screw; a counter bore is formed in the center of the shaft block; a positioning screw is screwed in the counter bore; and the driven paper tray shaft seat is fixed on a mounting plate of the detection machine body through a screw.

3. The dual channel gas quality monitoring system of claim 1, wherein: the controller communicates with a remote data platform through a communication module.

4. The dual channel gas quality monitoring system of claim 1, wherein: and the top surface of the detection machine body is also provided with a wind speed sensor, a wind direction sensor and a temperature and humidity sensor.

5. The dual channel gas quality monitoring system of claim 1, wherein: the detection machine body is fixed on the vertical rod; the upright rods comprise an upper upright rod and a lower upright rod which are arranged by flanges; the upright stanchion is also provided with an LED display screen electrically connected with the controller; a camera support is fixed on the detection machine body, and a camera is mounted on the camera support.