Ambient air sampling temperature control device

Abstract

The invention discloses an ambient air sampling temperature control device, which comprises a box body, the box body comprises a placing chamber, a circulating water pumping chamber and a heating chamber, the placing chamber is circularly communicated with the heating chamber, the box body is provided with a cover plate which can be opened or closed, the placing chamber is internally provided with a leather bag which divides the placing chamber into two parts, and the leather bag is arranged in the box body. The lower half part of the leather bag is provided with circulating water circularly communicated with the heating chamber, the leather bag is provided with a plurality of sampling tube accommodating bags for placing gas sampling tubes, the cover plate is provided with sampling structures correspondingly communicated with the gas sampling tubes for sampling, and the cover plate is also provided with a heating device for conveniently heating the circulating water in the heating chamber; a pumping device for conveying circulating water in the placing cavity into the heating cavity is arranged in the circulating water pumping cavity; according to the device, multiple times of sampling can be conveniently carried out, constant-temperature storage can be carried out on air in the gas sampling pipe, and the accuracy of subsequent detection is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sampling structures and relates to an ambient air sampling temperature control device. Background Art

[0002] Environmental testing is a scientific activity that uses modern scientific and technological methods to quantitatively measure the concentration changes of environmental factors and other environmental pollutants that are harmful to human health in an intermittent or continuous form, and observe and analyze the process and degree of their environmental impact. The purpose of environmental testing is to timely, accurately and comprehensively reflect the current status and development trend of environmental quality, and provide a scientific basis for environmental management, pollution source control, environmental planning and environmental evaluation. When testing the air quality in the environment, it is necessary to use a sampling structure to sample the air in the environment for subsequent testing operations. At present, the operating steps of air sampling are to place the gas sampling tube in the environment where sampling is required, and then connect one end of the gas sampling tube to the vacuum pump, and air enters the gas sampling tube from the other end. In addition, multiple samplings are required in different time periods in one environment. Therefore, the interval between the first sampled gas sampling tube and the last sampled gas sampling tube is relatively long, and the temperature of the environment will change with time, resulting in a temperature difference that affects the first sampled gas sampling tube. For example, condensed water will be generated in the gas sampling tube, resulting in inaccurate detection. Summary of the invention

[0003] The technical problem to be solved by the present invention is: a temperature control device for sampling ambient air, which can facilitate multiple samplings and can store the air in a gas sampling tube at a constant temperature, thereby improving the accuracy of subsequent detection.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: an environmental air sampling temperature control device, including a box body, the box body includes a placement chamber, a circulating water pumping chamber and a heating chamber, the placement chamber is connected in a circulation manner with the heating chamber, the box body is provided with a cover that can be opened or closed, the placement chamber is provided with a leather bag that divides the placement chamber into two parts, the lower half of the leather bag is provided with circulating water that is connected in a circulation manner with the heating chamber, the leather bag is provided with a plurality of sampling tube accommodating bags for placing gas sampling tubes, the cover is provided with a sampling structure that is connected for sampling corresponding to the gas sampling tube, and the cover is also provided with a heating device that is convenient for heating the circulating water in the heating chamber; the circulating water pumping chamber is provided with an extraction device that transports the circulating water in the placement chamber to the heating chamber.

[0005] As a preferred solution, the sampling structure includes an air inlet branch pipe and an air outlet branch pipe fixedly installed on the cover plate and corresponding one-to-one to the air inlet and air outlet of the gas sampling tube. The air inlet branch pipes are connected to the air inlet main pipe, and the air outlet branch pipes are connected to the air outlet main pipe. The air inlet branch pipes and the air outlet branch pipes are both provided with valves for convenient opening and closing.

[0006] As a preferred solution, the extraction device includes a water pump fixedly installed in the circulating water pumping chamber, the water pump is provided with a water pumping pipe, the placement chamber is connected to the heating chamber through the water pumping pipe, and a water outlet is also provided between the placement chamber and the heating chamber.

[0007] As a preferred solution, the heating device includes a heating tube, the cover plate is provided with a heating notch for the heating tube to penetrate deeply, and a placement plate is provided on the top of the heating tube, and the placement plate is larger than the heating notch.

[0008] As a preferred solution, the cover plate includes a first cover plate and a second cover plate, the first cover plate corresponds to the circulating pumping chamber and the heating chamber, the heating notch is arranged on the first cover plate, the second cover plate corresponds to the placement chamber, the air inlet branch pipe and the air outlet branch pipe are fixedly installed on the second cover plate, and the first cover plate and the second cover plate are hingedly installed on the box body.

[0009] As a preferred solution, the air inlet branch pipe and the air outlet branch pipe are both PU hoses.

[0010] As a preferred solution, the sampling tube holding bag is made of a flexible material, and the sampling tube holding bag has the same shape as the gas sampling tube.

[0011] After adopting the above technical scheme, the effect of the present invention is as follows: since the ambient air sampling temperature control device includes a box body, the box body includes a placement chamber, a circulating water pumping chamber and a heating chamber, the placement chamber is cyclically connected with the heating chamber, the box body is provided with a cover plate that can be opened or closed, the placement chamber is provided with a leather bag that divides the placement chamber into two parts, the lower half of the leather bag is provided with circulating water cyclically connected with the heating chamber, the leather bag is provided with a plurality of sampling tube accommodating bags for placing gas sampling tubes, the cover plate is provided with a sampling structure corresponding to the gas sampling tube for sampling, and the cover plate A heating device is also provided on the top for heating the circulating water in the heating chamber; an extraction device is provided in the circulating pumping chamber to transport the circulating water in the placement chamber to the heating chamber; first, the air is sampled through the sampling structure to enter the corresponding gas sampling tube, and then the heating device heats the air in the heating chamber. At the same time, the extraction device works, and the circulating water in the placement chamber is extracted into the heating chamber, and the circulating water in the heating chamber enters the placement chamber again, so that the temperature in the placement chamber is maintained at a constant level until the required gas sampling tube is sampled, and then the sampling structure is sealed to preserve the gas sampling tube for subsequent detection.

[0012] Furthermore, since the sampling structure includes an air inlet branch pipe and an air outlet branch pipe fixedly mounted on the cover plate and corresponding one-to-one to the air inlet and air outlet of the gas sampling tube, the air inlet branch pipes are all connected to the air inlet main pipe, and the air outlet branch pipes are all connected to the air outlet main pipe, and the air inlet branch pipes and the air outlet branch pipes are both provided with valves for convenient opening and closing; since the gas sampling tubes need to be sampled one by one, the corresponding gas sampling tubes can be sampled by opening the corresponding valves, and the air inlet branch pipes and the air outlet branch pipes of each sampling tube can be summarized at the same time to facilitate sampling.

[0013] Furthermore, since the extraction device includes a water pump fixedly installed in the circulating water pumping chamber, the water pump is provided with a water pumping pipe, the placement chamber is connected with the heating chamber through the water pumping pipe, and a water outlet is also provided between the placement chamber and the heating chamber; the circulating water can be effectively circulated by actively pumping water through the water pump, ensuring that the water temperature is constant and uniform.

[0014] Since the heating device includes a heating tube, a heating notch is provided on the cover plate to facilitate the heating tube to penetrate therein, and a placement plate is provided on the top of the heating tube. The placement plate is larger than the heating notch. In this way, the circulating water in the heating chamber can be quickly heated by inserting the heating tube into the heating notch. At the same time, the heating tube can be suspended on the cover plate through the placement plate.

[0015] Furthermore, since the cover plate includes a first cover plate and a second cover plate, the first cover plate corresponds to the circulating water pumping chamber and the heating chamber, the heating notch is arranged on the first cover plate, the second cover plate corresponds to the placement chamber, the air inlet branch pipe and the air outlet branch pipe are both fixedly mounted on the second cover plate, and the first cover plate and the second cover plate are hingedly mounted on the box body, so that the first cover plate and the second cover plate can be folded, which is convenient for sorting and repairing the inside of the box body.

[0016] Furthermore, since the air inlet branch pipe and the air outlet branch pipe are both PU hoses, when the air inlet branch pipe and the air outlet branch pipe are connected to the gas sampling tube, they can be directly mounted on the air inlet end and the air outlet, which is simple and convenient.

[0017] Furthermore, since the sampling tube holding bag is made of a flexible material and has the same shape as the gas sampling tube, the circulating water can effectively adhere to the gas sampling tube when placed in the chamber, ensuring that the temperature of the circulating water can be effectively transferred to the gas sampling tube and maintained at a constant temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 is a stereogram of an embodiment of the present invention;

[0020] Figure 2 is a schematic top view of an embodiment of the present invention;

[0021] Figure 3 yes Figure 2 A cross-sectional view at AA;

[0022] Figure 4 is a schematic diagram of the internal structure of an embodiment of the present invention;

[0023] In the accompanying drawings: 1. Box body; 2. First cover plate; 3. Second cover plate; 4. Placement chamber; 5. Circulation pumping chamber; 6. Heating chamber; 7. Leather bag; 71. Sampling tube storage bag; 8. Air inlet branch pipe; 9. Air outlet branch pipe; 10. Air inlet main pipe; 11. Air outlet main pipe; 12. Air outlet; 13. Air inlet; 14. Water pump; 141. Water pump; 15. Water outlet; 16. Valve; 17. Heating tube; 171. Placement plate; 18. Heating notch. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below through specific examples.

[0025] like Figures 1 to 4 As shown, an ambient air sampling temperature control device comprises a housing 1, wherein the housing 1 comprises a placement chamber 4, a circulating water pumping chamber 5 and a heating chamber 6, wherein the placement chamber 4 is in circulation communication with the heating chamber 6, and the housing 1 is provided with a cover which can be opened or closed, wherein the placement chamber 4 is provided with a leather bag 7 which divides the placement chamber 4 into two parts, wherein the lower half of the leather bag 7 is provided with circulating water which is in circulation communication with the heating chamber 6, wherein the leather bag 7 is provided with a plurality of sampling tube accommodating bags 71 for placing gas sampling tubes, wherein the cover is provided with a sampling structure which is connected to the gas sampling tube for sampling, and wherein the cover is also provided with a heating device which is convenient for heating the circulating water in the heating chamber 6; wherein the circulating water pumping chamber 5 is provided with an extraction device which transports the circulating water in the placement chamber 4 to the heating chamber 6.

[0026] In this embodiment, the box body 1 is a rectangular structure. When the bladder 7 is fixedly installed in the placement chamber 4, a sealed structure is formed under the bladder 7 to store circulating water. Moreover, since the bladder 7 is a flexible structure, when the circulating water circulates, the bladder 7 can effectively withstand the fluctuation of the water flow, thereby ensuring that the gas sampling tube is effectively placed in the sampling tube holding bag 71.

[0027] like Figure 3As shown, the sampling structure includes an air inlet branch pipe 8 and an air outlet branch pipe 9 fixedly mounted on the cover plate and corresponding to the air inlet 13 and the air outlet 12 of the gas sampling tube. The air inlet branch pipe 8 is connected to the air inlet main pipe 10, and the air outlet branch pipe 9 is connected to the air outlet main pipe 11. The air inlet branch pipe 8 and the air outlet branch pipe 9 are provided with a valve 16 for convenient opening and closing. Since each gas sampling tube has an air inlet 13 and an air outlet 12, the corresponding air inlet branch pipe 8 and the air outlet branch pipe 9 can ensure that the gas sampling tube can effectively intake and exhaust air, and The air inlet branch pipe 8 and the air outlet branch pipe 9 are combined into an air inlet main pipe 10 and an air outlet main pipe 11, which can facilitate air extraction and exhaust. When a gas sampling tube is needed for sampling, the valve 16 of the corresponding gas sampling tube is opened, and the sampled gas will enter the corresponding gas sampling tube. The valve 16 is closed and another valve 16 is opened, and the sampled gas will enter another gas sampling tube, which effectively improves the sampling efficiency. When the sampled gas is discharged, it is only necessary to open the valve 16 on the corresponding air outlet branch pipe 9, and the sampled gas will enter the air outlet main pipe 11 and be discharged.

[0028] In this embodiment, the extraction device includes a water pump 14 fixedly installed in the circulating pumping chamber 5, and a water pump 141 is provided on the water pump 14. The placement chamber 4 is connected with the heating chamber 6 through the water pump 141. A water outlet 15 is also provided between the placement chamber 4 and the heating chamber 6. The circulating pumping chamber 5, the heating chamber 6 and the placement chamber 4 are all installed adjacent to each other. There is no circulating water in the circulating pumping chamber 5. Therefore, after the placement chamber 4, the water pump 14 and the heating chamber 6 are connected in sequence through the water pump 141, the placement chamber can be pumped out. At the same time, the circulating water in the heating chamber 6 is pumped out of the water outlet 15 because the circulating water in the placement chamber 4 is pumped away, thereby maintaining the pressure balance in the heating chamber 6 and the placement chamber 4, and the flow energy of the circulating water makes the temperature more uniform, thereby ensuring the constant temperature effect. Since the water pump 14 is an existing structure that can be purchased, it is not described in detail in the text.

[0029] like Figure 1 and Figure 4 As shown, the heating device includes a heating tube 17, and a heating notch 18 is opened on the cover plate to facilitate the heating tube 17 to penetrate deeply. A placement plate 171 is provided on the top of the heating tube 17, and the placement plate 171 is larger than the heating notch 18; in this embodiment, the heating tube 17 is a U-shaped tubular structure, and the heating tube 17 can heat the circulating water after being connected to a power source, and the placement plate 171 is larger than the heating notch 18, so that the placement plate 171 can be covered on the cover plate, so that the heating tube 17 is suspended in the heating chamber 6, further improving the heating effect of the circulating water; the heating tube 17 is an existing structure that can be purchased.

[0030] Furthermore, the cover plate includes a first cover plate 2 and a second cover plate 3, the first cover plate 2 corresponds to the circulating water pumping chamber 5 and the heating chamber 6, the heating notch 18 is arranged on the first cover plate 2, the second cover plate 3 corresponds to the placement chamber 4, the air inlet branch pipe 8 and the air outlet branch pipe 9 are both fixedly mounted on the second cover plate 3, the first cover plate 2 and the second cover plate 3 are hingedly mounted on the box body 1, so that they can be controlled separately. Since the gas sampling tube needs to be replaced in the placement chamber 4, the second cover plate 3 can be flipped to facilitate the placement of the gas sampling tube, and can effectively block external impurities from entering the placement chamber 4 and affecting sampling. The same is true for the first cover plate 2, which can effectively prevent external impurities from entering the heating chamber 6 and the circulating water pumping chamber 5.

[0031] In this embodiment, the air inlet branch pipe 8 and the air outlet branch pipe 9 are both PU hoses, so when connecting, you only need to put the air inlet branch pipe 8 and the air outlet branch pipe 9 on the air inlet 13 and the air outlet 12 corresponding to the gas sampling tube to complete the connection, which is convenient and quick.

[0032] Furthermore, the sampling tube holding bag 71 is made of a flexible material, and has the same shape as the gas sampling tube; thus, after the gas sampling tube is placed in the sampling tube holding bag 71, the circulating water squeezes the sampling tube holding bag 71 to make the sampling tube holding bag 71 close to the gas sampling tube, thereby enabling the sampling tube holding bag 71 to have good thermal conductivity.

[0033] The working principle of this embodiment is as follows: first, open the valve 16 on the air inlet branch 8 and the air outlet branch 9 corresponding to the first gas sampling tube, and the sampled gas enters the air inlet main pipe 10, then enters the air inlet branch 8 corresponding to the gas sampling tube, and finally enters the gas sampling tube, and then closes the valve 16 on the air inlet branch 8 and the air outlet branch 9 corresponding to the gas sampling tube; when waiting for the next sampling, open the valve 16 on the air inlet branch 8 and the air outlet branch 9 on another gas sampling tube to complete the sampling of another gas sampling tube, and repeat the above operation until the required sampling is completed. While sampling, the heating tube 17 works for heating, and the water pump 14 also starts to work, and the circulating water in the placement chamber 4 is transported to the heating chamber 6 through the water pump 141. The circulating water in the heating chamber 6 flows into the placement chamber 4 from the water outlet. After reaching the specified temperature, the heating rod stops heating. When the circulating water is lower than the specified temperature, the heating rod starts heating.

[0034] The above-described embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Various modifications and alterations to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the scope of protection defined by the claims of the present invention.

Claims

1. An ambient air sampling temperature control device, characterized in that: The invention comprises a box body, which comprises a placement chamber, a circulating water pumping chamber and a heating chamber. The placement chamber is in circulation communication with the heating chamber. The box body is provided with a cover which can be opened or closed. The placement chamber is provided with a leather bag which divides the placement chamber into two parts. The lower half of the leather bag is provided with circulating water which is in circulation communication with the heating chamber. The leather bag is provided with a plurality of sampling tube accommodating bags for placing gas sampling tubes. The cover is provided with a sampling structure which is connected to the gas sampling tube for sampling. The cover is also provided with a heating device which is convenient for heating the circulating water in the heating chamber. The circulating water pumping chamber is provided with an extraction device which transports the circulating water in the placement chamber to the heating chamber.

2. An ambient air sampling temperature control device as claimed in claim 1, characterized in that: The sampling structure includes an air inlet branch pipe and an air outlet branch pipe fixedly installed on the cover plate and corresponding to the air inlet and air outlet of the gas sampling tube one by one. The air inlet branch pipes are connected to the air inlet main pipe, and the air outlet branch pipes are connected to the air outlet main pipe. The air inlet branch pipes and the air outlet branch pipes are both provided with valves for convenient opening and closing.

3. An ambient air sampling temperature control device as claimed in claim 2, characterized in that: The extraction device comprises a water pump fixedly installed in the circulating water pumping chamber, the water pump is provided with a water pumping pipe, the placement chamber is connected with the heating chamber through the water pumping pipe, and a water outlet is also provided between the placement chamber and the heating chamber.

4. An ambient air sampling temperature control device as claimed in claim 3, characterized in that: The heating device comprises a heating tube, the cover plate is provided with a heating notch for the heating tube to penetrate deeply, a placement plate is provided on the top of the heating tube, and the placement plate is larger than the heating notch.

5. An ambient air sampling temperature control device as claimed in claim 4, characterized in that: The cover plate includes a first cover plate and a second cover plate, the first cover plate corresponds to the circulating pumping chamber and the heating chamber, the heating notch is arranged on the first cover plate, the second cover plate corresponds to the placement chamber, the air inlet branch pipe and the air outlet branch pipe are fixedly installed on the second cover plate, and the first cover plate and the second cover plate are hingedly installed on the box body.

6. An ambient air sampling temperature control device as claimed in claim 2, characterized in that: The air inlet branch pipe and the air outlet branch pipe are both PU hoses.

7. An ambient air sampling temperature control device as claimed in claim 1, characterized in that: The sampling tube containing bag is made of a flexible material, and the sampling tube containing bag has the same shape as the gas sampling tube.

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