CN219890845U

CN219890845U - Air sampling device

Info

Publication number: CN219890845U
Application number: CN202321145113.1U
Authority: CN
Inventors: 吴淑敬
Original assignee: Hainan Xintianyuan Technology Development Co ltd
Current assignee: Hainan Xintianyuan Technology Development Co ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-10-24
Anticipated expiration: 2033-05-12

Abstract

The utility model provides an air sampling device, which comprises a processing box, a sampling mechanism and an air pretreatment mechanism, wherein the sampling mechanism comprises a sampling pump and an exhaust pipe, the air pretreatment mechanism comprises a conveying pipe, a sample pipe, an electromagnetic valve and a spiral condensing pipe, the sampling pump conveys outside air into the conveying pipe, the spiral condensing pipe arranged on the outer wall of the conveying pipe can cool the interior of the conveying pipe, so that water vapor contained in the air is liquefied into water and gathered at the middle position of a concave part of the inner bottom surface of the conveying pipe, the air with the water vapor removed can be conveyed into the sampling box through the sample pipe for storage, after sampling is finished, the sample pipe is closed through the electromagnetic valve, so that air samples in the sampling box can be monitored, and as the air samples are cooled and dehumidified before entering the sampling box, the air samples with high temperature and high humidity can be prevented from influencing the air monitoring effect, and meanwhile, the air monitoring device is prevented from being damaged by moisture.

Description

Air sampling device

Technical Field

The utility model relates to the technical field of environment detection, in particular to an air sampling device.

Background

The atmospheric environment refers to the physical, chemical and biological characteristics of air on which living organisms depend, wherein the physical characteristics comprise temperature, humidity, wind speed, air pressure and the like, the chemical characteristics comprise the components of the atmosphere, the air mainly comprises nitrogen, oxygen and hydrogen, the production and management activities of human beings can generate other various gases, such as nitrogen dioxide, sulfur dioxide, carbon monoxide, carbon dioxide and the like, part of the gases belong to harmful gases, the harmful gases exist in the air and can have a certain influence on the biological health, therefore, air monitoring is generated, the air monitoring can sample the air in a certain area and obtain an air sample, the air quality of the area can be known by analyzing the air sample, the air quality can be timely improved by manual intervention when the air quality has a problem, the air sampling device commonly used at present mostly extracts and samples air through an air pump, for example, an air sampler (hereinafter referred to as D1) for indoor air detection with the publication number of CN207556936U comprises a case, a case support column is arranged at the bottom of the case, a support column telescopic rod is arranged in the case support column, a support column base is fixed at the bottom end of the case support column, a detection cavity is arranged in the case, an air extracting pump rocker is arranged in a rocker slide rail, a switch is arranged under a laser emitter control button in an embedded manner, a case top cover is arranged at the top end of the case, an air extracting pump is arranged on the upper surface of the case top cover in a penetrating manner, a sampling tube is arranged above the air extracting pump along the height direction of the air extracting pump, a sampling tube suction nozzle is arranged at the top end of the sampling tube, external air is sucked into the sampling tube through the sampling tube suction nozzle by the air extracting pump, and finally the external air is fed into the detection cavity, however, D1 does not pre-treat the air after sampling the air, and for the southern area, the collected air sample is not in a state most suitable for air monitoring due to the high-temperature and high-humidity environment, and the water vapor contained in the air sample not only affects the air monitoring result, but also damages the monitoring equipment due to damp.

Disclosure of Invention

In view of this, the utility model provides an air sampling device, which can cool the collected air, and remove the water vapor contained in the air, so as to avoid affecting the effect of subsequent air monitoring.

The technical scheme of the utility model is realized as follows:

the utility model provides an air sampling device, includes processing box, sampling mechanism and air pretreatment mechanism, sampling mechanism includes sampling pump and exhaust tube, air pretreatment mechanism includes conveyer pipe, sample pipe, solenoid valve and spiral condenser pipe, conveyer pipe and sampling box set up inside the processing box, sample pipe one end is connected with the conveyer pipe tip, and the other end stretches into in the sampling box, the solenoid valve sets up on the sample pipe, spiral condenser pipe twines at the conveyer pipe outer wall, conveyer pipe inner bottom surface is provided with the undercut; the sampling pump is arranged on the outer wall of the processing box, the air inlet end of the sampling pump is connected with the air exhaust pipe, and the air outlet end of the sampling pump extends into the processing box and is connected with the end part of the conveying pipe, which is far away from the sample pipe.

Preferably, the air pretreatment mechanism further comprises a water chiller, the water chiller is arranged on the top surface of the treatment box, and two ends of the spiral condensing pipe extend out of the treatment box to be connected with the water chiller.

Preferably, the air pretreatment mechanism further comprises a gate valve and a water collecting tank, wherein a penetrating channel is formed in the position, with the lowest height, of the concave portion, the water collecting tank is arranged on the bottom surface of the conveying pipe and located below the penetrating channel, and the gate valve is arranged in the penetrating channel.

Preferably, the bottom surface of the conveying pipe is provided with a groove, the top surface of the water collecting tank is open, the top of the side wall of the water collecting tank is provided with an embedded block, and the embedded block is embedded into the groove and is positioned and fixed through a positioning mechanism.

Preferably, the positioning mechanism comprises an elastic spring ball and a positioning groove, the elastic spring ball is arranged on the side wall of the embedded block, the positioning groove is arranged on the side wall of the groove, and the elastic spring ball is popped into the positioning groove.

Preferably, the sampling mechanism further comprises a filter screen, and the filter screen is arranged in the exhaust pipe.

Preferably, the device further comprises a mixing mechanism, wherein the mixing mechanism is arranged in the sampling box and comprises a rotating motor, a rotating shaft and blades, the rotating motor is arranged on the inner side wall of the sampling box, an output shaft of the rotating motor is connected with one end of the rotating shaft, and the blades are arranged on the outer side wall of the rotating shaft.

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

(1) the air collected by the sampling pump can be conveyed through the conveying pipe, a spiral condensing pipe is arranged outside the conveying pipe, the spiral condensing pipe can cool the air in the conveying pipe and liquefy water vapor in the air, so that cooling and dehumidifying of an air sample are realized, and the effect that the collected high-temperature high-humidity air sample influences air monitoring is avoided;

(2) the inner bottom surface of the conveying pipe is provided with a concave surface, condensed liquid water can flow along the inner bottom surface of the conveying pipe and is gathered at the concave surface, so that water is prevented from entering the sampling box, and separation of water and air is realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only preferred embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an air sampling device according to the present utility model;

FIG. 2 is a schematic diagram of a connection structure between a delivery pipe and a water collection tank of an air sampling device according to the present utility model;

FIG. 3 is an enlarged view of FIG. 2 at A;

in the figure, 1 is a processing box, 2 is a sampling box, 3 is a sampling pump, 4 is an exhaust pipe, 5 is a conveying pipe, 6 is a sample pipe, 7 is an electromagnetic valve, 8 is a spiral condensing pipe, 9 is a concave part, 10 is a water chiller, 11 is a gate valve, 12 is a water collecting box, 13 is a through channel, 14 is a groove, 15 is an embedded block, 16 is an elastic collision bead, 17 is a positioning groove, 18 is a filter screen, 19 is a rotating motor, 20 is a rotating shaft, and 21 is a blade.

Detailed Description

For a better understanding of the technical content of the present utility model, a specific example is provided below, and the present utility model is further described with reference to the accompanying drawings.

Referring to fig. 1 to 3, the air sampling device provided by the utility model comprises a processing box 1, a sampling box 2, a sampling mechanism and an air pretreatment mechanism, wherein the sampling mechanism comprises a sampling pump 3 and an exhaust pipe 4, the air pretreatment mechanism comprises a conveying pipe 5, a sampling pipe 6, an electromagnetic valve 7 and a spiral condensing pipe 8, the conveying pipe 5 and the sampling box 2 are arranged in the processing box 1, one end of the sampling pipe 6 is connected with the end part of the conveying pipe 5, the other end of the sampling pipe extends into the sampling box 2, the electromagnetic valve 7 is arranged on the sampling pipe 6, the spiral condensing pipe 8 is wound on the outer wall of the conveying pipe 5, and a concave part 9 is arranged on the inner bottom surface of the conveying pipe 5; the sampling pump 3 is arranged on the outer wall of the treatment box 1, the air inlet end of the sampling pump 3 is connected with the air exhaust pipe 4, and the air outlet end of the sampling pump 3 extends into the treatment box 1 and is connected with the end part of the conveying pipe 5, which is far away from the sample pipe 6.

After the treatment box 1 is moved to an air monitoring area, the sampling pump 3 is started, the sampling pump 3 can suck external air through the exhaust pipe 4 and convey the external air into the conveying pipe 5, the spiral condensing pipe 8 is arranged on the outer wall of the conveying pipe 5 in a surrounding mode, the spiral condensing pipe 8 can cool the air conveyed inside the conveying pipe 5, water vapor contained in the air can be liquefied into water and flow and gather at the middle position inside the conveying pipe 5 along the concave portion 9, then the air with the water vapor removed can be conveyed from the sampling pipe 6 to the sampling box 2 for storage, after sampling is completed, the electromagnetic valve 7 is closed, excessive air is prevented from entering the sampling box 2, the high-temperature and high-humidity air sucked from the outside can be preprocessed through the arrangement of the spiral condensing pipe 8, and the influence on the air monitoring result caused by overhigh temperature and humidity is avoided.

After the air monitoring device is placed in the sampling box 2, the pretreated air sample can be subjected to real-time air monitoring, the monitoring result is displayed or transmitted outwards, and as the concave part 9 is arranged on the inner bottom surface of the conveying pipe 5, the liquefied water can be gathered in the middle of the concave part 9, so that the air monitoring device is prevented from being damaged by the water flowing into the sampling box 2, the humidity of the air sample in the sampling box 2 is lower, and the air monitoring device cannot be affected by moisture.

Preferably, the air pretreatment mechanism further comprises a water chiller 10, the water chiller 10 is arranged on the top surface of the treatment tank 1, and two ends of the spiral condensing pipe 8 extend out of the treatment tank 1 to be connected with the water chiller 10.

The water chiller 10 is used for 89 producing condensed water and delivering the condensed water into the spiral condensing pipe 8 so that the cold energy can be transferred into the delivery pipe 5 to realize the functions of cooling and liquefying water vapor.

Preferably, the air pretreatment mechanism further comprises a gate valve 11 and a water collecting tank 12, wherein a penetrating channel 13 is arranged at the position with the lowest height of the concave part 9, the water collecting tank 12 is arranged on the bottom surface of the conveying pipe 5 and below the penetrating channel 13, and the gate valve 11 is arranged in the penetrating channel 13.

In order to avoid that the liquid water accumulated in the lower concave part 9 excessively influences the air delivery, a through passage 13 is arranged in the lower concave part 9, after the through passage 13 is opened through a gate valve 11, the water in the lower concave part 9 can flow into a water collecting tank 12, and when the air delivery is carried out, the gate valve 11 can be closed to seal the through passage 13 and prevent the air from overflowing outwards from the through passage 13.

Preferably, the bottom surface of the conveying pipe 5 is provided with a groove 14, the top surface of the water collecting tank 12 is open, the top of the side wall of the water collecting tank is provided with an embedded block 15, the embedded block 15 is embedded in the groove 14 and is positioned and fixed through a positioning mechanism, the positioning mechanism comprises an elastic spring ball 16 and a positioning groove 17, the elastic spring ball 16 is arranged on the side wall of the embedded block 15, the positioning groove 17 is arranged on the side wall of the groove 14, and the elastic spring ball 16 is ejected into the positioning groove 17.

The water collection tank 12 and the conveying pipe 5 are detachably connected, the embedded block 15 is embedded into the groove 14, the elastic collision beads 16 are ejected into the positioning grooves 17, the water collection tank 12 can be fixed, and after more water is stored in the water collection tank 12, the water collection tank 12 can be detached, and the water is poured out.

The filter screen 18 can filter out solid impurities contained in the air and avoid entering the conveying pipe 5.

Preferably, the mixing mechanism is arranged in the sampling box 2 and comprises a rotating motor 19, a rotating shaft 20 and blades 21, wherein the rotating motor 19 is arranged on the inner side wall of the sampling box 2, an output shaft of the rotating motor is connected with one end of the rotating shaft 20, and the blades 21 are arranged on the outer side wall of the rotating shaft 20.

In order to ensure the effect of air monitoring, a mixing mechanism is arranged in the sampling box 2, the rotating motor 19 can drive the rotating shaft 20 to rotate after being started, and the blades 21 on the side wall of the rotating shaft 20 can drive the air in the sampling box 2 to flow, so that the air is uniformly mixed.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The air sampling device is characterized by comprising a processing box, a sampling mechanism and an air pretreatment mechanism, wherein the sampling mechanism comprises a sampling pump and an exhaust pipe, the air pretreatment mechanism comprises a conveying pipe, a sampling pipe, an electromagnetic valve and a spiral condensing pipe, the conveying pipe and the sampling box are arranged inside the processing box, one end of the sampling pipe is connected with the end of the conveying pipe, the other end of the sampling pipe extends into the sampling box, the electromagnetic valve is arranged on the sampling pipe, the spiral condensing pipe is wound on the outer wall of the conveying pipe, and a concave part is formed in the inner bottom surface of the conveying pipe; the sampling pump is arranged on the outer wall of the processing box, the air inlet end of the sampling pump is connected with the air exhaust pipe, and the air outlet end of the sampling pump extends into the processing box and is connected with the end part of the conveying pipe, which is far away from the sample pipe.

2. The air sampling device of claim 1, wherein the air pretreatment mechanism further comprises a water chiller, the water chiller is arranged on the top surface of the treatment tank, and two ends of the spiral condensing pipe extend out of the treatment tank to be connected with the water chiller.

3. The air sampling device according to claim 1, wherein the air pretreatment mechanism further comprises a gate valve and a water collection tank, a through passage is provided at a position where the height of the concave portion is lowest, the water collection tank is provided on the bottom surface of the conveying pipe and below the through passage, and the gate valve is provided in the through passage.

4. An air sampling device according to claim 3, wherein the bottom surface of the conveying pipe is provided with a groove, the top surface of the water collection tank is open, the top of the side wall of the water collection tank is provided with an embedded block, and the embedded block is embedded into the groove and is positioned and fixed by a positioning mechanism.

5. The air sampling device of claim 4, wherein the positioning mechanism comprises an elastic spring ball and a positioning groove, the elastic spring ball is arranged on the side wall of the embedded block, the positioning groove is arranged on the side wall of the groove, and the elastic spring ball is ejected into the positioning groove.

6. An air sampling device according to claim 1, wherein the sampling mechanism further comprises a filter screen disposed in the exhaust tube.

7. The air sampling device of claim 1, further comprising a blending mechanism disposed in the sampling tank and comprising a rotating motor disposed on an inner side wall of the sampling tank, a rotating shaft connected to one end of the rotating shaft, and blades disposed on an outer side wall of the rotating shaft.