Portable multi-air-grid atmosphere sampler

Abstract

The utility model discloses a portable multi-air-grid atmosphere sampler, comprising: an air storage unit comprising a box body and an air passage, the air passage penetrates through the box body, a plurality of air chambers are arranged around the air passage in the box body, the air passage extends into the air chambers through an inflation pipe, and the inflation pipe is provided with a first solenoid valve; the gas production unit comprises a reversible inflator pump, a gas inlet pipe and a gas outlet pipe, the gas inlet pipe is connected with a gas inlet of the reversible inflator pump and extends out of the box body, one end of the gas outlet pipe is connected with a gas outlet of the reversible inflator pump, and the other end of the gas outlet pipe is connected with one end of the gas channel. Due to the design of multiple gas grids, different types of gas samples are allowed to be collected and stored, the application flexibility of the sampler is improved, and the sampler is more suitable for variable environmental monitoring requirements.

Description

Technical Field

[0001] The utility model relates to a portable multi-gas grid atmosphere sampler, belonging to the technical field of atmosphere samplers. Background Art

[0002] In the field of environmental monitoring and scientific research, an atmospheric sampler is an important device used to collect gas samples in the atmosphere for analysis and evaluation. Traditional atmospheric samplers usually face problems such as bulky size, complex operation, low sampling efficiency, and limited sample capacity.

[0003] The existing document (CN206920192 U) discloses a portable air bag atmospheric sampler, comprising a reversible air pump, the opening of the box body is upward, a door is hinged at the upper end of the box body, a lock is installed on the door, and a rubber sealing strip is clamped between the door and the box body; a partition is fixed in the box body, and a battery, an MCU control unit and a reversible air pump are fixed in the box body and are located at the lower part of the partition; the air inlet pipe of the reversible air pump is fixed on the right side plate of the box body, the air inlet pipe is a curved pipe and the opening of the curved pipe is downward; the air outlet pipe of the reversible air pump is a straight pipe, a flow sensor is installed on the air outlet pipe, and a plurality of vertical pipes are connected to the air outlet pipe, and the vertical pipes are inserted into the preset holes on the partition; a solenoid valve is installed on each vertical pipe, and the air outlet of the air bag is clamped between the clamp and the vertical pipe; the sampler can collect atmospheric samples at regular intervals for analysis by the environmental monitoring department, and is easy to carry and has good rainproof performance. However, the sampler still has difficulty in collecting a variety of different gas components, which limits its application in different environments and diverse needs. At the same time, different gas components will be mixed to varying degrees during sampling, affecting the accuracy of sampling. Utility Model Content

[0004] Based on the above, the utility model provides a portable multi-gas grid atmospheric sampler to overcome the deficiencies of the prior art.

[0005] The technical solution of the utility model is: a portable multi-gas grid atmospheric sampler, comprising:

[0006] The air storage unit comprises a box body and an air passage, wherein the air passage runs through the box body, a plurality of air chambers are arranged in the box body around the air passage, the air passage extends into the air chambers through an air charging pipe, and a first electromagnetic valve is arranged on the air charging pipe;

[0007] The air collection unit includes a reversible air pump, an air inlet pipe and an air outlet pipe. The air inlet pipe is connected to the air inlet of the reversible air pump and extends outside the box. One end of the air outlet pipe is connected to the air outlet of the reversible air pump, and the other end is connected to one end of the airway.

[0008] As a further improvement of the utility model, a support foot is provided at the bottom of the box body, the air duct is arranged vertically, and a second solenoid valve is provided at the bottom end of the air duct.

[0009] As a further improvement of the utility model, the reversible air pump is arranged on the top of the box body, and the air inlet pipe is a curved pipe with its opening facing downward.

[0010] As a further improvement of the present invention, a rain shield is provided on the top of the box.

[0011] As a further improvement of the utility model, the air inlet of the reversible air pump is connected to one end of the gas flow meter, the other end of the gas flow meter is connected to the gas flow controller, the control end of the reversible air pump is connected to the gas flow controller, and a knob is provided on the gas flow controller.

[0012] As a further improvement of the present invention, multiple layers of air chambers are arranged in the box body along the height direction.

[0013] Beneficial effects of the utility model:

[0014] 1. The multi-gas grid design of the utility model allows the collection and storage of different types of gas samples, which improves the application flexibility of the sampler and makes it more suitable for changing environmental monitoring needs.

[0015] 2. The utility model is controlled by an independent gas chamber and a first solenoid valve, so that each gas sample can be collected and isolated separately, and the gas in the airway can be discharged through the second solenoid valve, thereby reducing the mixing of different gas components and improving the accuracy of sampling.

[0016] 3. The utility model makes the sampler easier to carry and use in various environments, especially outdoors or in severe weather conditions, through the compact structure of the box, the rain shield on the top and the combined design of the supporting feet at the bottom.

[0017] 4. The utility model provides accurate flow control capability by combining a reversible air pump with a gas flow meter and a flow controller, ensuring accurate gas flow under different sampling conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a longitudinal cross-sectional view of a portable multi-gas grid atmospheric sampler;

[0019] Description of reference numerals:

[0020] 1 box body, 2 air passage, 3 air chamber, 4 inflation tube, 5 first solenoid valve, 6 second solenoid valve, 7 reversible inflation pump, 8 air inlet pipe, 9 air outlet pipe, 10 gas flow meter, 11 gas flow controller, 12 knob, 13 support foot, 14 rain shield. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0022] See also Figure 1 , this embodiment provides a portable multi-gas grid atmospheric sampler, including a gas storage unit and a gas collection unit.

[0023] The gas storage unit includes a box body 1 and an airway 2. The box body 1 is cylindrical, and an airway 2 is opened in the middle of the box body 1. A plurality of air chambers 3 are arranged around the airway 2 on the same plane of the box body 1, and a plurality of layers of air chambers 3 are arranged in the height direction in the box body 1. The airway 2 extends into each air chamber 3 through an air filling tube 4. Each air filling tube 4 is provided with a first solenoid valve 5. A support foot 13 is provided at the bottom of the box body 1, and a second solenoid valve 6 is installed at the bottom of the airway 2. During operation, the sampled gas entering from the airway 2 enters the corresponding air chamber 3 for storage when a first solenoid valve 5 is opened and the other solenoid valves are closed. When the gas sampling is completed and the next gas sampling with different components is required, the second solenoid valve 6 can be opened to discharge the residual gas in the airway 2 first, and then the second solenoid valve 6 is closed and a first solenoid valve 5 is opened for sampling and storage.

[0024] The gas sampling unit includes a reversible air pump 7, an air inlet pipe 8 and an air outlet pipe 9. The reversible air pump 7 is installed on the box 1. The air inlet pipe 8 is connected to the air inlet of the reversible air pump 7 and extends to the outside of the box 1. Its opening is downward. One end of the air outlet pipe 9 is connected to the air outlet of the reversible air pump 7, and the other end is connected to the top of the airway 2. In order to ensure that accurate gas flow can be obtained under different sampling conditions, the air inlet of the reversible air pump 7 is connected to one end of a gas flow meter 10, and the other end of the gas flow meter 10 is connected to a gas flow controller 11. The control end of the reversible air pump 7 is connected to the gas flow controller 11. The gas flow controller 11 is provided with a knob 12. The resistance value of the control circuit is changed by the knob 12 to control the reversible air pump 7, so as to adjust the size of the air intake. A rain shield 14 is provided on the top of the box 1 to facilitate sampling outdoors or in bad weather conditions.

[0025] When in use, the user controls the device through the control panel (or remote control device), including opening / closing the solenoid valve, adjusting the speed of the air pump, monitoring the gas flow, etc. When the device collects gas samples, the user can select a specific gas chamber 3 to store different gases as needed.

[0026] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. Portable multi-gas grid atmospheric sampler, characterized in that: include: An air storage unit comprises a box body (1) and an air passage (2), wherein the air passage (2) passes through the box body (1), a plurality of air chambers (3) are arranged around the air passage (2) in the box body (1), the air passage (2) extends into the air chambers (3) through an air charging pipe (4), and a first electromagnetic valve (5) is arranged on the air charging pipe (4); The air collection unit comprises a reversible air pump (7), an air inlet pipe (8) and an air outlet pipe (9), wherein the air inlet pipe (8) is connected to the air inlet of the reversible air pump (7) and extends to the outside of the box (1), and one end of the air outlet pipe (9) is connected to the air outlet of the reversible air pump (7), and the other end is connected to one end of the air duct (2).

2. The portable multi-gas grid atmospheric sampler according to claim 1, characterized in that: A support foot (13) is provided at the bottom of the box body (1), the air duct (2) is arranged vertically, and a second solenoid valve (6) is provided at the bottom end of the air duct (2).

3. The portable multi-gas grid atmospheric sampler according to claim 1, characterized in that: The reversible air pump (7) is arranged on the top of the box body (1), and the air inlet pipe (8) is a curved pipe with its opening facing downward.

4. The portable multi-gas grid atmospheric sampler according to claim 1, characterized in that: A rain shield (14) is provided on the top of the box body (1).

5. The portable multi-gas grid atmospheric sampler according to claim 1, characterized in that: The air inlet of the reversible air pump (7) is connected to one end of a gas flow meter (10), the other end of the gas flow meter (10) is connected to a gas flow controller (11), the control end of the reversible air pump (7) is connected to the gas flow controller (11), and the gas flow controller (11) is provided with a knob (12).

6. The portable multi-gas grid atmospheric sampler according to claim 1, characterized in that: Multiple layers of air chambers (3) are arranged in the box body (1) along the height direction.

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