CN211856053U

CN211856053U - Multi-channel synchronous sampling device for atmospheric detection

Info

Publication number: CN211856053U
Application number: CN202020246895.8U
Authority: CN
Inventors: 龚云娇; 樊宇坤; 周婷; 马敏杰; 王晨光
Original assignee: Zhonghuan Qingke Jiaxing Environmental Technology Research Institute Co ltd
Current assignee: Zhonghuan Qingke Jiaxing Environmental Technology Research Institute Co ltd
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-11-03
Anticipated expiration: 2030-03-03

Abstract

The utility model provides an atmosphere detects with synchronous sampling device of multichannel, includes a plurality of air inlet pipeline, gas circuit switching device, connecting line and pump, on air inlet pipeline located gas circuit switching device, connecting line one end was connected with gas circuit switching device, and the connecting line other end is connected with the pump, and check out test set is connected to the other end of pump, the utility model provides a be equipped with a plurality of air inlet pipeline, air inlet pipeline is used for the sampling, inhales through the pump start, and gas circuit switching device controls the synchronous sampling of sampling device, and the switch of gas circuit switching device control air inlet pipeline is sent into in the check out test set and is detected after the atmosphere sampling.

Description

Multi-channel synchronous sampling device for atmospheric detection

Technical Field

The utility model relates to an atmosphere detection area specifically is a synchronous sampling device of multichannel for atmosphere detection.

Background

Along with the continuous industrialization in cities, the environmental problem is more serious, a large amount of waste gas is discharged in industrial production, harmful gas is contained in the waste gas, potential harm is brought to the healthy life of human beings, in recent years, atmospheric sampling is gradually combined with an analysis detection technology to form a device capable of automatically and continuously sampling, analyzing and detecting and recording detection results, the existing detection device is provided with a plurality of sampling channels, each channel needs to be provided with an electromagnetic valve, the power consumption is increased during working, the weight and the volume are increased along with the increase, the carrying is inconvenient, and a sampling detection device with a simple structure and lower power consumption is designed at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a synchronous sampling device of multichannel for atmospheric detection, the utility model discloses in be equipped with a plurality of air inlet pipeline, the air inlet pipeline is used for the sampling, inhales through the pump start, and the synchronous sampling of gas circuit switching device control sampling equipment, the switch of gas circuit switching device control air inlet pipeline, the check-out test in the check-out test set is sent into behind the atmospheric sampling.

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

the utility model provides an atmosphere detects with synchronous sampling device of multichannel, includes a plurality of air inlet pipeline, gas circuit switching device, connecting line and pump, and on the air inlet pipeline located gas circuit switching device, connecting line one end was connected with gas circuit switching device, and the connecting line other end is connected with the pump, and check out test set is connected to the other end of pump.

Preferably, the gas circuit switching device includes the motor, outer sleeve and inner tube, the outer sleeve is one end open-ended cavity setting, the outer sleeve other end is equipped with circular shape through-hole, the inner tube is one end closed one end open-ended cavity setting, the inner tube seals one and is served and is equipped with the blind hole, the inner tube is established inside the outer sleeve, the motor is fixed on the outer sleeve other end, motor output shaft stretches into in the through-hole, motor output shaft is equipped with the one end fixed connection of blind hole through the key-type connection with the inner tube, air inlet pipeline and outer sleeve fixed connection, air inlet pipeline is linked together with the outer sleeve, be.

Preferably, the inner cylinder is externally provided with an arc-shaped annular groove, a plurality of balls are arranged in the annular groove, and the balls are clamped in the annular groove.

Preferably, one side of the plurality of sampling ports on the inner cylinder is provided with a step, the side surface of the step is provided with a sealing ring, and the sealing ring is positioned between the inner cylinder and the outer sleeve.

Preferably, the detection device includes a flow meter, a gas storage device, a drying device for drying water vapor, a sensor group, a PM detection device, a PM filter device, an organic component analysis device, a controller and a display 59, the flow meter is located between the pump and the gas storage device, the gas storage device is connected with a plurality of detection pipelines, the plurality of detection pipelines include a first detection pipeline, a second detection pipeline and a third detection pipeline, the drying device and the sensor group for drying water vapor are located on the first detection pipeline, the PM detection device is located on the second detection pipeline, the PM filter device and the organic component analysis device are located on the third detection pipeline, and the other ends of the plurality of detection pipelines are connected with the controller and the display 59.

Preferably, a first channel is connected to the first detection pipeline between the drying device and the sensor group and the second detection pipeline, the first channel is communicated with the first detection pipeline and the second detection pipeline, the other end of the first channel is located at one end, close to the air storage device, of the PM detection device, a second channel and a third channel connected to the third detection pipeline are respectively arranged in front of and behind the PM detection device, the other ends of the second channel and the third channel are located at one end, close to the air storage device, of the PM filtration device, and electromagnetic valves of the control switches are respectively arranged on the first channel, the second channel and the third channel.

Compared with the prior art, the multi-channel synchronous sampling device for the atmospheric detection has the following beneficial effects that:

adopt the utility model discloses a synchronous sampling device of multichannel for atmosphere detection, the pump start is breathed in, and through a plurality of air inlet pipeline samplings, the switch of air circuit switching device control sampling equipment synchronous sampling and control air inlet pipeline, the check-out test in the check-out test set is sent into behind the atmosphere sampling.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a detection and multichannel synchronous sampling device.

Fig. 2 is a schematic structural diagram of a multi-channel synchronous sampling device for atmospheric detection.

Fig. 3 is a schematic diagram of the internal structure of the multi-channel synchronous sampling device for atmospheric detection.

Fig. 4 is a sectional view of the multi-channel synchronous sampling device for atmospheric detection.

Fig. 5 is an enlarged view of fig. 4 at a.

Fig. 6 is an enlarged view of fig. 4 at B.

Reference numerals: 1. an air intake line; 2. a gas path switching device; 21. a motor; 22. an outer sleeve; 23. an inner barrel; 24. a ball bearing; 25. a seal ring; 3. connecting a pipeline; 4. a pump; 5. a detection device; 51. a flow meter; 52. a gas storage device; 53. a drying device; 54. a sensor group; 55. A PM detection device; 56. a PM filter device; 57. an organic component analysis device; 58. an electromagnetic valve; 59. a display; 61. a first detection conduit; 62. a second detection conduit; 63. and a third pipeline is detected.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 6, a synchronous sampling device of multichannel for atmosphere detection, including a plurality of air inlet pipeline 1, gas circuit switching device 2, connecting line 3 and pump 4, air inlet pipeline 1 is located on gas

circuit switching device

2, 3 one ends of connecting line are connected with gas circuit switching device 2, the 3 other ends of connecting line are connected with pump 4, check out test set 5 is connected to the other end of pump 4, pump 4 starts to breathe in, sample through a plurality of air inlet pipeline 1, gas circuit switching device 2 control sampling device is synchronous to be sampled and control the switch of air inlet pipeline 1, detect in sending into check out test set 5 behind the atmosphere sampling.

The air path switching device 2 comprises a motor 21, an outer sleeve 22 and an inner sleeve 23, wherein the outer sleeve 22 is hollow with an opening at one end, a circular through hole is formed in the other end of the outer sleeve 22, the inner sleeve 23 is hollow with a closed end and an opening at one end, a blind hole is formed in the closed end of the inner sleeve 23, the inner sleeve 23 is arranged inside the outer sleeve 22, the motor 21 is fixed at the other end of the outer sleeve 22, an output shaft of the motor 21 extends into the through hole, the output shaft of the motor 21 is fixedly connected with one end, provided with the blind hole, of the inner sleeve 23 through a key connection, an air inlet pipeline 1 is fixedly connected with the outer sleeve 22, the air inlet pipeline 1 is communicated with the outer sleeve 22, a plurality of sampling ports matched with the air inlet pipeline 1 are formed in the inner sleeve 23, the output shaft of the motor 21 in the air path switching device 2, when sampling is needed, the output shaft of the motor 21 rotates rightwards or leftwards for 90 degrees, so that the inner cylinder 23 is driven to rotate rightwards or leftwards for 90 degrees, and the sampling device is started by the intersection of the air inlet pipeline 1 and the sampling port.

The inner tube 23 is externally provided with a circular arc-shaped annular groove, a plurality of balls 24 are arranged in the annular groove, the balls 24 are clamped in the annular groove, and the balls 24 are arranged to ensure that the inner tube 23 can ensure certain coaxiality in left rotation or right rotation, reduce friction and facilitate rotation of the inner tube 23.

One side of a plurality of sampling ports on the inner cylinder 23 is provided with a step, the side surface of the step is provided with a sealing ring 25, the sealing ring 25 is positioned between the inner cylinder 23 and the outer sleeve 22, and the arrangement of the sealing ring 25 ensures that the atmosphere can not enter the detection device when the sampling device is closed.

The detection device 5 comprises a flow meter 51, a gas storage device 52, a drying device 53 for drying water vapor, a sensor group 54, a PM detection device 55, a PM filtering device 56, an organic component analysis device 57, a controller and a display 59, wherein the flow meter 51 is positioned between the pump 4 and the gas storage device 52, the gas storage device 52 is connected with a plurality of detection pipelines, the plurality of detection pipelines comprise a first detection pipeline 61, a second detection pipeline 62 and a third detection pipeline 63, the drying device 53 and the sensor group 54 are arranged on the first detection pipeline 61, a drying agent which only absorbs water is arranged in the drying device 53, and the sensor group 54 comprises one or more of a carbon monoxide sensor, an ozone sensor and a nitrogen oxide sensor; the PM detection device 55 is provided on the second detection pipe 62, the PM filtering device 56 and the organic component analyzing apparatus 57 are provided on the third detection pipe 63, and the other ends of the plurality of detection pipes are connected to the controller and display 59.

A first channel is connected to the first detection pipeline 61 between the drying device 53 and the sensor group 54 and the second detection pipeline 62, the first channel is communicated with the first detection pipeline 61 and the second detection pipeline 62, the other end of the first channel is located at one end, close to the gas storage device 52, of the PM detection device 55, a second channel and a third channel connected with the third detection pipeline 63 are respectively arranged at the front and the rear of the PM detection device 55, the other ends of the second channel and the third channel are located at one end, close to the gas storage device 52, of the PM filtration device 56, electromagnetic valves 58 for controlling the switches are respectively arranged on the first channel, the second channel and the third channel, and the arrangement of the electromagnetic valves 58 enables the drying device 53, the PM detection device 55 and the machine component analysis device to separately detect gas and gradually detect gas, so that the accuracy and the reliability are improved.

The use process comprises the following steps:

1. when the atmosphere needs to be detected, the sampling device and the detection equipment 5 connected with the sampling device are taken out and placed at the position needing to be detected;

2. the motor 21 is fixed on one end of the outer sleeve 22, the output shaft of the motor 21 extends into the through hole and is fixedly connected with one end of the inner cylinder 23 through a key connection, when sampling is needed, the output shaft of the motor 21 rotates rightwards or leftwards, so that the inner cylinder 23 is driven to rotate rightwards or leftwards, a plurality of balls 24 are arranged in the annular groove, the rotation of the inner cylinder 23 is facilitated, and the air inlet pipeline 1 is intersected with a sampling port to start a sampling device;

3. the pump 4 starts to suck air, samples are taken through the plurality of air inlet pipelines 1, and the atmosphere enters the air storage device 52 in the detection device 5 through the pump 4;

4. the drying device 53, the PM detection device 55 and the organic component analysis device of the detection device 5 respectively detect the gas step by step, and the detected data are recorded by the controller.

The above description is a preferred embodiment of the present invention, and a person skilled in the art can make several modifications and improvements without departing from the principles of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a synchronous sampling device of multichannel for atmosphere detection which characterized in that: the multi-channel synchronous sampling device comprises a plurality of air inlet pipelines (1), an air circuit switch device (2), connecting pipelines (3) and a pump (4), wherein the air inlet pipelines (1) are arranged on the air circuit switch device (2), one end of each connecting pipeline (3) is connected with the air circuit switch device (2), the other end of each connecting pipeline (3) is connected with the pump (4), and the other end of each pump (4) is connected with a detection device (5).

2. The multi-channel synchronous sampling device for atmospheric detection according to claim 1, characterized in that: gas circuit switching device (2) includes motor (21), outer sleeve (22) and inner tube (23), outer sleeve (22) are one end open-ended cavity setting, the outer sleeve (22) other end is equipped with circular shape through-hole, inner tube (23) are one end closed one end open-ended cavity setting, inner tube (23) are sealed one and are served and be equipped with the blind hole, inner tube (23) are established inside outer sleeve (22), motor (21) are fixed on outer sleeve (22) other end, motor (21) output shaft stretches into in the through-hole, motor (21) output shaft passes through the key-type connection and is equipped with the one end fixed connection of blind hole with inner tube (23), admission line (1) and outer sleeve (22) fixed connection, admission line (1) are linked together with outer sleeve (22), be equipped with a plurality ofly on inner tube (23) and admission line (1) assorted.

3. The multi-channel synchronous sampling device for atmospheric detection according to claim 2, characterized in that: the outer of the inner cylinder (23) is provided with an arc-shaped annular groove, a plurality of balls (24) are arranged in the annular groove, and the balls (24) are clamped in the annular groove.

4. The multi-channel synchronous sampling device for atmospheric detection according to claim 3, characterized in that: steps are arranged on one side of the sampling ports on the inner cylinder (23), sealing rings (25) are arranged on the side faces of the steps, and the sealing rings (25) are located between the inner cylinder (23) and the outer sleeve (22).

5. The multi-channel synchronous sampling device for atmospheric detection according to claim 1, characterized in that: the detection device (5) comprises a flow meter (51), a gas storage device (52), a drying device (53) for drying water vapor, a sensor group (54), a PM detection device (55), a PM filtering device (56) and an organic component analysis device (57), wherein the flow meter (51) is positioned between the pump (4) and the gas storage device (52), the gas storage device (52) is connected with a plurality of detection pipelines, the detection pipelines comprise a first detection pipeline (61), a second detection pipeline (62) and a third detection pipeline (63), the drying device (53) for drying water vapor and the sensor group (54) are arranged on the first detection pipeline (61), the PM detection device (55) is arranged on the second detection pipeline (62), and the PM filtering device (56) and the organic component analysis device (57) are arranged on the third detection pipeline (63).

6. The multi-channel synchronous sampling device for atmospheric detection according to claim 5, characterized in that: the first detection pipeline (61) is located between the drying device (53) and the sensor group (54) and connected with a first channel on the second detection pipeline (62), the first channel is communicated with the first detection pipeline (61) and the second detection pipeline (62), the other end of the first channel is located at one end, close to the gas storage device (52), of the PM detection device (55), a second channel and a third channel which are connected with the third detection pipeline (63) are arranged in front of and behind the PM detection device (55), the other ends of the second channel and the third channel are located at one end, close to the gas storage device (52), of the PM filtering device (56), and electromagnetic valves (58) for controlling switches are arranged on the first channel, the second channel and the third channel respectively.