Atmosphere sampling equipment with temperature regulation and control function

Abstract

The utility model relates to the technical field of atmosphere sampling, and discloses atmosphere sampling equipment with a temperature regulation and control function, which comprises a collection box, a cabinet door is rotatably mounted on the inner side wall of the collection box through a hinge, and an air pump is fixedly mounted on the top side in the collection box. By opening the electromagnetic valves on one group of air inlet pipes and driving the air pump, external air can be continuously guided into one group of collecting balls, when an operator sequentially opens the electromagnetic valves on the other group of air inlet pipes, different gases can be sampled and collected, and meanwhile, the heating rod and the circulating pump are opened, so that the heating effect is improved. Constant-temperature water in the water tank can be continuously guided into the constant-temperature water guide pipe, the multiple sets of hollow covers are communicated through communicating pipes, the constant-temperature water sequentially flows from the multiple sets of hollow covers and is finally guided into the water tank, and it can be efficiently guaranteed that the multiple sets of collecting balls are continuously heated by the hollow covers at constant temperature; gas sampled in the multiple groups of collecting balls is stored at a specified temperature, so that the sampling precision is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of atmospheric sampling, in particular to an atmospheric sampling device with a temperature control function. Background Technique

[0002] At present, atmospheric sampling refers to the method of collecting pollutant samples or polluted air samples in the atmosphere. One type of collection method is to pass a large amount of air through a liquid absorbent or a solid adsorbent to enrich the pollutants with relatively low concentrations in the atmosphere, such as the air extraction method and the filter membrane method. Another type is to collect the air containing pollutants with containers (glass bottles, plastic bags, etc.).

[0003] Among them, during the process of collecting samples by an atmospheric sampler, a constant temperature needs to be maintained to ensure the accuracy and comparability of sampling. Because pollutants and chemical substances in the atmosphere are often affected by temperature. For example, the increase in temperature will cause the evaporation of organic compounds, reducing its accuracy and reliability. Similarly, if the temperature is too low, some pollutants will solidify in the pipeline, which will also affect the accuracy of sampling.

[0004] However, the gases collected by the atmospheric sampling devices on the market are relatively single, and it is not easy to conduct multi-group sampling. Moreover, the constant temperature control is for the box body, and it is difficult to conduct constant temperature control on the collected gases, which will greatly affect the accuracy of gas sampling. Therefore, we propose an atmospheric sampling device with a temperature control function to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the prior art, and propose an atmospheric sampling device with a temperature control function.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An atmospheric sampling device with a temperature control function, comprising: a collection box, a cabinet door is rotatably installed on the inner side wall of the collection box through a hinge, an air pump is fixedly installed on the top side inside the collection box, a tee joint is connected and installed at the inlet port of the air pump, a set of interfaces of the tee joint is connected and installed with a gas collecting pipe, two sets of middle parts inside the collection box are fixedly installed with mounting frames, and a sampling heat preservation mechanism is installed inside the mounting frames;

[0008] The sampling heat preservation mechanism includes a plurality of equally spaced hollow covers fixedly installed on the mounting frame, collection balls fixedly installed inside each hollow cover, communicating pipes connected and installed between adjacent two hollow covers, a constant temperature water guide pipe connected and installed on the side wall of one of the hollow covers, and a circulation pipe connected and installed on the side wall of the other hollow cover.

[0009] Preferably, an intake pipe is connected and installed at the top of each group of the collection balls, and the other end of each group of the intake pipes is connected and installed with the outlet port of the air pump, so that the collected gas can be introduced into the collection balls.

[0010] Preferably, a branch pipe is connected and installed at the bottom of each group of the collection balls, the other end of each group of the branch pipes is connected and installed with a sampling pipe, and a first solenoid valve is installed on each of the intake pipes and the branch pipes.

[0011] Preferably, a gas tank is fixedly installed on one side inside the collection box, hydrogen gas is placed inside the gas tank, and the gas tank is connected and installed with the other set of interfaces of the three-way joint through a conduit, so as to purify the conduit and the inner cavity of the air pump.

[0012] Preferably, an exhaust pipe is fixedly installed on the side wall of the collection box, the other end of the exhaust pipe is connected and installed with the outlet port of the air pump, and a second solenoid valve is installed on the exhaust pipe and the gas tank, so as to evacuate the gas.

[0013] Preferably, a water tank is fixedly installed on the bottom side inside the collection box, circulating water is placed inside the water tank, a circulating pump is fixedly installed on the bottom side inside the water tank, the outlet port of the circulating pump is connected and installed with a constant temperature conduit, the side wall of the water tank is connected and installed with the other end of the circulation pipe, a controller is fixedly installed on the side wall of the water tank, a heating rod is fixedly installed at the other end of the controller, and a temperature control module is installed inside the controller, so as to constantly heat the circulating water inside the water tank at a constant temperature.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] In the present utility model, by opening the solenoid valve on one group of the intake pipes and driving the air pump, the outside air can be continuously introduced into one group of the collection balls. When the operator sequentially opens the solenoid valve on the other group of the intake pipes, different gases can be sampled and collected. At the same time, by turning on the heating rod and the circulating pump, the constant temperature water inside the water tank can be continuously introduced into the constant temperature conduit. With multiple groups of hollow covers all connected and installed through the connecting pipes, the constant temperature water flows through the multiple groups of hollow covers in sequence and finally is introduced into the water tank, which can efficiently ensure that multiple groups of collection balls are continuously heated at a constant temperature by the hollow covers, so that the sampled gases inside the multiple groups of collection balls are stored at a specified temperature, greatly improving the sampling accuracy.

[0016] Since a gas tank is fixedly installed on one side inside the collection box and the exhaust pipe fixedly installed on the side wall of the collection box is connected and installed with the outlet port of the air pump, when one group of the collection balls finishes collecting the gas, the opened solenoid valve can be closed, and the solenoid valves on the gas tank and the exhaust pipe can be opened, so that the pure gas inside the gas tank is sequentially led out from the air pump, the conduit and the discharge pipe, which can purify the inner cavity of the conduit and the air pump, and avoid the gas sampled last time remaining in the inner cavity of the conduit and the air pump during the secondary gas collection, affecting the accuracy of gas detection. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the main structure of the air sampling device with temperature control function proposed by the present utility model;

[0018] Figure 2 It is a schematic diagram of the distribution structure of multiple hollow covers of the air sampling device with temperature control function proposed by the present utility model.

[0019] In the figure: 1. Collection box; 11. Air pump; 12. Three-way joint; 13. Gas collecting pipe; 2. Mounting frame; 21. Hollow cover; 22. Collection ball; 23. Connecting pipe; 24. Constant temperature water conduit; 25. Circulation pipe; 3. Intake pipe; 31. Sub-distributing pipe; 32. Sampling pipe; 33. Gas tank; 34. Drain pipe; 4. Water tank; 41. Circulation pump; 42. Heating rod. Detailed Implementation Manner

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] Refer to Figure 1-2 An air sampling device with temperature control function includes: a collection box 1. A cabinet door is rotatably installed on the inner side wall of the collection box 1 through a hinge. An air pump 11 is fixedly installed on the top side inside the collection box 1. The intake port of the air pump 11 is connected and installed with a three-way joint 12. One group of interfaces of the three-way joint 12 is connected and installed with a gas collecting pipe 13. Two mounting frames 2 are fixedly installed in the middle of the inside of the collection box 1. A sampling heat preservation mechanism is installed inside the mounting frame 2;

[0022] The sampling and heat preservation mechanism includes a plurality of groups of hollow covers 21 fixedly installed on the mounting frame 2 at equal intervals, collection balls 22 fixedly installed inside each group of hollow covers 21, communication pipes 23 connected and installed between adjacent two groups of hollow covers 21, a constant temperature water conduit 24 connected and installed on the side wall of one of the hollow covers 21, and a circulation pipe 25 connected and installed on the side wall of the other hollow cover 21. An air inlet pipe 3 is connected and installed at the top of each group of collection balls 22. By opening the solenoid valve on one of the air inlet pipes 3 and driving the air pump 11, the outside air can be continuously introduced into one of the collection balls 22. When the operator sequentially opens the solenoid valves on the other air inlet pipes 3, different gases can be sampled and collected. At the same time, by turning on the heating rod 42 and the circulation pump 41, the constant temperature water in the water tank 4 can be continuously introduced into the constant temperature water conduit 24. Cooperating with the fact that multiple groups of hollow covers 21 are all connected and installed through the communication pipes 23, the constant temperature water flows through multiple groups of hollow covers 21 in sequence and finally is introduced into the water tank 4, which can efficiently ensure that multiple groups of collection balls 22 are continuously heated at a constant temperature by the hollow covers 21, so that the sampled gases inside multiple groups of collection balls 22 are stored at a specified temperature, greatly improving the sampling accuracy.

[0023] Furthermore, an air tank 33 is fixedly installed on one side inside the collection box 1. Hydrogen is placed inside the air tank 33. The air tank 33 is connected and installed with another interface of the three-way joint 12 through a conduit, which can purify the conduit and the inner cavity of the air pump 11. A drain pipe 34 is fixedly installed on the side wall of the collection box 1. The other end of the drain pipe 34 is connected and installed with the outlet port of the air pump 11. Second solenoid valves are installed on the drain pipe 34 and the air tank 33, which can empty the gas. After one of the collection balls 22 completes the gas collection, the opened solenoid valve can be closed, and the solenoid valves on the air tank 33 and the drain pipe 34 can be opened. The pure gas inside the air tank 33 is sequentially discharged from the air pump 11, the conduit, and the discharge pipe, which can purify the conduit and the inner cavity of the air pump 11, avoiding the presence of the gas sampled last time in the conduit and the inner cavity of the air pump 11 during the secondary gas collection, which affects the accuracy of gas detection.

[0024] Furthermore, the other end of each air inlet pipe 3 is connected and installed with the outlet port of the air pump 11, which can introduce the collected gas into the collection ball 22. A distribution pipe 31 is connected and installed at the bottom of each group of collection balls 22. The other end of each distribution pipe 31 is connected and installed with a sampling pipe 32. First solenoid valves are installed on each air inlet pipe 3 and the distribution pipe 31. After opening the solenoid valve on one of the air inlet pipes 3 and driving the air pump 11 to continuously introduce the outside air into one of the collection balls 22, the operator can open the solenoid valve on the corresponding distribution pipe 31 to discharge the collected gas from the sampling pipe 32 for detecting the sampled gas.

[0025] Furthermore, a water tank 4 is fixedly installed on the inner bottom side of the collection box 1. There is circulating water inside the water tank 4. A circulation pump 41 is fixedly installed on the inner bottom side of the water tank 4. The outlet port of the circulation pump 41 is connected and installed with a constant temperature water conduit 24. The other end of the side wall of the water tank 4 is connected and installed with a circulation pipe 25. A controller is fixedly installed on the side wall of the water tank 4. A heating rod 42 is fixedly installed at the other end of the controller. A temperature control module is installed inside the controller, which can heat the circulating water inside the water tank 4 to a constant temperature. When the operator sets a specified temperature on the temperature control module on the controller, it will drive the heating rod 42 to heat the circulating water inside the water tank 4 to a constant temperature, and continuously introduce the constant temperature water into the constant temperature water conduit 24 through a pump.

[0026] During use, first place the collection box 1 in a specified area, and then open the solenoid valve on one of the intake pipes 3 to drive the air pump 11, which can continuously introduce external air into one of the collection balls 22. When the operator sequentially opens the solenoid valve on the other intake pipe 3, different gases can be sampled and collected. At the same time, when the heating rod 42 and the circulation pump 41 are turned on, the constant temperature water inside the water tank 4 can be continuously introduced into the constant temperature water conduit 24. With multiple hollow covers 21 all connected and installed through a communication pipe 23, the constant temperature water flows through the multiple hollow covers 21 in sequence and finally into the water tank 4, which can efficiently ensure that the multiple collection balls 22 are continuously heated to a constant temperature by the hollow covers 21, so that the gases sampled inside the multiple collection balls 22 are stored at a specified temperature, greatly improving the sampling accuracy. At the same time, an air tank 33 is fixedly installed on one side inside the collection box 1, and the exhaust pipe 34 fixedly installed on the side wall of the collection box 1 is connected to the outlet port of the air pump 11. When one of the collection balls 22 finishes collecting gas, the opened solenoid valve can be closed, and the solenoid valves on the air tank 33 and the exhaust pipe 34 can be opened to sequentially export the pure gas inside the air tank 33 from the air pump 11, the conduit, and the discharge pipe, which can purify the conduit and the inner cavity of the air pump 11, and avoid the presence of the gas sampled last time in the conduit and the inner cavity of the air pump 11 during the second gas collection, which affects the accuracy of gas detection.

[0027] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. Atmospheric sampling equipment with temperature control function, characterized in that: include: A collection box (1), wherein a cabinet door is rotatably mounted on the inner side wall of the collection box (1) via a hinge, an air pump (11) is fixedly mounted on the top side of the collection box (1), an inlet of the air pump (11) is connected to a three-way joint (12), a group of interfaces of the three-way joint (12) is connected to a gas collecting pipe (13), a mounting frame (2) is fixedly mounted in the middle of two groups of the collection box (1), and a sampling heat preservation mechanism is mounted inside the mounting frame (2); The sampling and heat preservation mechanism comprises a plurality of groups of equally spaced hollow covers (21) fixedly mounted on the mounting frame (2), a collecting ball (22) fixedly mounted inside each group of the hollow covers (21), two adjacent groups of the hollow covers (21) connected to each other via a connecting pipe (23), a constant temperature water pipe (24) connected to the side wall of the hollow covers (21) on one side, and a circulation pipe (25) connected to the side wall of the hollow covers (21) on the other side.

2. The atmospheric sampling device with temperature control function according to claim 1, characterized in that: The top of each group of collecting balls (22) is connected to an air inlet pipe (3), and the other end of each group of air inlet pipes (3) is connected to an outlet port of an air pump (11).

3. The atmospheric sampling device with temperature control function according to claim 2, characterized in that: The bottom of each group of collecting balls (22) is connected to a branch pipe (31) installed thereon, the other end of each group of branch pipes (31) is connected to a sampling pipe (32) installed thereon, and a first solenoid valve is installed on each group of air inlet pipes (3) and branch pipes (31).

4. The atmospheric sampling device with temperature control function according to claim 1, characterized in that: A gas tank (33) is fixedly mounted on one side of the interior of the collection box (1), hydrogen is placed inside the gas tank (33), and the gas tank (33) is connected to another set of interfaces of the three-way joint (12) through a conduit.

5. The atmospheric sampling device with temperature control function according to claim 4, characterized in that: A drain pipe (34) is fixedly mounted on the side wall of the collection box (1); the other end of the drain pipe (34) is connected to an outlet port of the air pump (11); and a second solenoid valve is mounted on the drain pipe (34) and the air tank (33).

6. The atmospheric sampling device with temperature control function according to claim 1, characterized in that: A water tank (4) is fixedly mounted on the bottom of the collecting box (1), circulating water is placed inside the water tank (4), a circulating pump (41) is fixedly mounted on the bottom of the water tank (4), an outlet port of the circulating pump (41) is connected to the constant temperature water pipe (24), a side wall of the water tank (4) is connected to the other end of the circulating pipe (25), a controller is fixedly mounted on the side wall of the water tank (4), a heating rod (42) is fixedly mounted on the other end of the controller, and a temperature control module is mounted inside the controller.

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