Intelligent plant volatile matter collecting device

By designing an intelligent plant volatiles collection device and adopting an automated replacement and cleaning system, the problems of cumbersome operations and relying on experience in the prior art are solved, and the collection efficiency and purity are improved.

CN119425305AInactive Publication Date: 2025-02-14XICHANG COLLEGE
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Patent Information

Application Number
CN202411908175.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-02-14
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing plant volatiles collection device is complicated in the connection and disassembly process, and a set of devices can only collect volatiles from one sample, and requires manual replacement of adsorption tubes and cleaning pipes. Relying on the experience of the operator, it increases the difficulty of work.

Method used

An intelligent plant volatiles collection device is designed, including a base, collection bag, shell and multiple adsorption tubes. It adopts an optimized pipeline connection structure and an automated replacement and cleaning system to realize the adsorption tube through docking mechanism and water supply and drainage mechanism. Automatic replacement and automatic cleaning of pipes.

Benefits of technology

The pipe connection and disassembly operations are simplified, the collection efficiency of plant volatiles is improved, the dependence on operator experience is reduced, and the purity and accuracy of volatiles are ensured.

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Abstract

The invention discloses an intelligent plant volatile matter collecting device, and relates to the field of agriculture and forestry plants, the intelligent plant volatile matter collecting device comprises a base, a collecting bag, a shell and a plurality of adsorption pipes, the collecting bag is communicated with an air inlet pipe and an air outlet pipe, the shell is fixedly installed on the base, and the intelligent plant volatile matter collecting device further comprises a water supply and drainage mechanism and a flow meter; the inlet end and the outlet end of the flow meter are correspondingly communicated with a pipe A1 and a pipe A2 respectively, valves are fixedly installed at the ends, close to the flow meter, of the pipe A1 and the pipe A2, and one side of the pipe A1 is communicated with a pipe B1; according to the intelligent plant volatile matter collecting device, the structure of the device is optimized, the operation steps of pipeline connection and disassembly are simplified, the pipeline can be cleaned more rapidly and the adsorption pipe can be replaced more rapidly after collection every time, the collecting efficiency of plant volatile matter is improved, and the purity and accuracy of plant volatile matter extracts are guaranteed; the dependence on the experience of an operator in the collection process is reduced, and the aim of reducing the collection difficulty of the plant volatile matters is achieved.
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Description

Technical Field

[0001] The invention relates to agricultural and forestry plant technology, and in particular to an intelligent plant volatiles collection device. Background Art

[0002] In botanical research and agricultural and forestry production, the collection, analysis and utilization of plant volatiles are of great value. Plant volatiles contain important chemical information of plants, which will not only vary due to differences in plant species, growth and development, health conditions, etc., but also change in response to different biological and abiotic environments. By collecting and analyzing plant volatiles, it is possible to monitor the health of plants, evaluate environmental changes, and use plant volatiles to regulate the interaction between plants and pests to achieve the goal of green plant protection. However, existing plant volatile collection devices have some shortcomings during use.

[0003] First, the connection process of the existing device is cumbersome. When the operator is inexperienced, other impurities in the air are often mixed in the plant volatile extract. Secondly, a set of equipment can only collect volatiles from one sample. If you want to collect the next sample, you must disassemble it, discard the used collection bag, and manually replace the adsorption tube. At the same time, the pipeline needs to be cleaned after each collection. Inadequate cleaning will also affect the purity and accuracy of the plant volatile extract. In summary, the connection and disassembly of the various components and pipelines of the current plant volatile extraction device is not only cumbersome and time-consuming, but also depends on the operator's experience. It is difficult to ensure the purity and accuracy of the collected volatiles, which greatly increases the difficulty of collecting plant volatiles and restricts the scientific and technological development in the fields of botany and agricultural and forestry production. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent plant volatiles collection device to solve the technical problem that the connection and disassembly operations of various components and pipelines in the plant volatiles collection device in the prior art are cumbersome, and a set of devices can only collect volatiles of one sample. If you want to collect the next sample, you need to manually replace the new adsorption tube and clean the pipeline to ensure the purity and accuracy of the collected volatiles. These links are very dependent on the operator's experience, which further increases the difficulty of the work.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent plant volatile collection device, comprising a base, a collection bag, a shell and a plurality of adsorption tubes, the collection bag is connected with an air inlet pipe and an air outlet pipe, the shell is fixedly installed on the base, and also comprises a water supply and drainage mechanism and a flow meter, the inlet end and the outlet end of the flow meter are respectively connected with an A1 tube and an A2 tube, the ends of the A1 tube and the A2 tube close to the flow meter are fixedly installed with valves, and one side of the A1 tube is connected with a B1 tube;

[0006] One end of the air outlet pipe away from the collection bag passes through the shell and extends to the inside of the shell. One side of the air outlet pipe located inside the shell is connected to the B2 tube. One side of the B2 tube is connected to a docking mechanism, which includes a docking tube. The docking mechanism can connect the inside of the B1 tube and the B2 tube to the inside of the docking tube or one of the adsorption tubes respectively.

[0007] One side of the A2 tube is connected to the C tube, and one end of the C tube away from the flow meter is connected to the air inlet pipe. Starting from the connection point between the A2 tube and the C tube, an air extraction component, an air supply component, a first purification component, and a second purification component are sequentially arranged along the flow path in the C tube. A valve is fixedly installed on the C tube and located between the air extraction component and the air supply component. One side of the air extraction component is connected to the C tube and can extract gas from the inside of the C tube. One side of the air supply component is connected to the C tube and can supply gas to the inside of the C tube.

[0008] One side of the first purification component is connected to the C tube and can perform a first round of purification on the gas flowing into the intake pipe, filtering out impurity gases soluble in water; one side of the second purification component is connected to the C tube and can perform a second round of purification on the gas flowing into the intake pipe, with impurity gases insoluble in water being adsorbed by activated carbon; the water supply and drainage mechanism can supply water to the inside of the A1 tube and / or the A2 tube.

[0009] Furthermore, both the air extraction component and the air supply component are atmospheric samplers, the air inlet end of the air extraction component is connected to the D1 tube, and the air outlet end of the air supply component is connected to the D2 tube. The ends of the D1 tube and the D2 tube are both connected to the inside of the C tube, and valves are fixedly installed on the D1 tube and the D2 tube.

[0010] Further, the first purification component includes a sealed bottle body A, which is filled with distilled water. An A input tube and an A output tube are arranged on the A sealed bottle body. The top ends of the A input tube and the A output tube both pass through the top end of the A sealed bottle body, the bottom end of the A input tube is below the liquid level of the distilled water in the A sealed bottle body, and the bottom end of the A output tube is above the liquid level of the distilled water in the A sealed bottle body. The top ends of the A input tube and the A output tube are both connected to the E1 tube, and the ends of the two E1 tubes away from the top of the A sealed bottle body are both connected to the C tube, and a valve is fixedly installed on the C tube and between the two E1 tubes.

[0011] Furthermore, the second purification component includes a B sealed bottle body, the interior of the B sealed bottle body is filled with activated carbon, a B input tube and a B output tube are arranged on the B sealed bottle body, the top ends of the B input tube and the B output tube both pass through the top end of the B sealed bottle body, the bottom end of the B input tube is inserted into the activated carbon, the bottom end of the B output tube is on the upper part of the activated carbon, the top ends of the B input tube and the B output tube are both connected to the E2 tube, the ends of the two E2 tubes away from the top of the B sealed bottle body are both connected to the C tube, and a valve is fixedly installed on the C tube and between the two E2 tubes.

[0012] Furthermore, the docking mechanism includes an activation component, a replacement component, a docking component and two docking parts. The docking parts include a docking head. The activation component is used to activate the adsorption tube. An annular groove is provided on the docking head. An annular air bag is provided inside the annular groove. One end of one of the docking heads away from the annular groove is fixedly connected to an end of the B2 tube away from the exhaust pipe, and the other end of the docking head away from the annular groove is fixedly connected to an end of the B1 tube away from the flow meter. The outer sides of the two docking heads are respectively connected to the docking components. The docking component is used to drive the two docking heads to move toward or in opposite directions. The replacement component is used to move the activated adsorption tube between the two docking heads.

[0013] Furthermore, the docking assembly includes a bracket, the top of the bracket is fixedly connected to the inner wall of the shell, a gear is provided at the bottom of the bracket, the inner side of the gear is connected to a rotating drive member A for driving the gear to rotate around its own axis, racks are meshed on both sides of the outside of the gear, and sliding frames are fixedly sleeved on the outside of the two docking heads, the top of the sliding frame is slidably connected to the bracket, one end of one of the racks is fixedly connected to one of the sliding frames, and one end of the other rack is fixedly connected to the other sliding frame.

[0014] Furthermore, the activation assembly includes a feeding rack, which is fixedly installed inside the shell, a high-temperature activation furnace is arranged at one end of the feeding rack, the end of the feeding rack close to the high-temperature activation furnace is arranged in an inclined shape, the middle part of the inclined end of the feeding rack is arranged in a hollow shape, an A vertical rod is arranged at the upper part of the inclined section of the feeding rack, a B vertical rod is arranged at the lower part of the inclined section of the feeding rack, a connecting frame is connected to the top end of the A vertical rod, the bottom end of the connecting frame is fixedly connected to the bottom end of the B vertical rod, and an A telescopic driving component for driving the connecting frame to move axially along the A vertical rod is connected to one side of the connecting frame.

[0015] Furthermore, the replacement component includes a rotating frame, one side of the rotating frame is rotatably connected to a mounting frame via a rotating shaft, the other side of the rotating frame is connected to a B rotating driving member driving the rotating frame to rotate around the axis of the rotating shaft, the bottom end of the mounting frame is fixedly connected to the shell, the docking tube is fixedly installed on the top of the rotating frame, two clamps for clamping the adsorption tube are symmetrically arranged at the bottom of the rotating frame, and the top of the clamp is connected to a B telescopic driving member for driving the clamp to move closer to or away from the rotating shaft. A storage cabin for storing the adsorption tube that has collected volatiles is arranged on one side of the rotating frame, and the storage cabin is fixedly installed on the side wall of the shell.

[0016] Furthermore, the water supply and drainage mechanism includes a water tank and a water pump. The water tank is filled with clean water. The water inlet of the water pump is connected to the F1 pipe. The end of the F1 pipe away from the water pump is connected to the inside of the water tank. The water outlet of the water pump is connected to the F2 pipe. The end of the F2 pipe away from the water pump is connected to the A1 pipe. One side of the F2 pipe is connected to the F3 pipe. The end of the F3 pipe away from the F2 pipe is connected to an end of the C pipe close to the A2 pipe. A valve is fixedly installed on the F3 pipe. A valve is fixedly installed on the F3 pipe. A valve is fixedly installed on the F2 pipe and on the side of the F2 pipe located at the connection between the F2 pipe and the F3 pipe close to the A1 pipe.

[0017] Furthermore, the A1 pipe, A2 pipe, B2 pipe and the bottom end of the air inlet pipe are connected to the same drain pipe, which is U-shaped. The drain pipe is fixedly installed in the shell and both ends of the drain pipe pass through the side wall of the shell. Valves are fixedly installed on the A1 pipe, A2 pipe, B2 pipe, the air outlet pipe and the air inlet pipe and on one end close to the drain pipe.

[0018] Compared with the prior art, the intelligent plant volatile collection device provided by the present invention simplifies the operation steps of pipe connection and disassembly by optimizing the device structure, so that the pipe can be cleaned and the adsorption tube can be replaced more quickly after each collection, thereby improving the collection efficiency of plant volatiles and reducing the dependence of the collection process on the operator's experience, thereby achieving the purpose of reducing the difficulty of collecting plant volatiles.

[0019] The docking mechanism and water supply and drainage mechanism are provided to effectively realize the automatic replacement of the adsorption tube and the automatic cleaning of the pipeline, reduce the complexity of manual operation, improve work efficiency, and the first purification component and the second purification component are provided to purify the gas entering the collection bag twice, remove impurities such as dust and particles, as well as harmful gases, odors and tiny particles in the gas, ensure that the gas entering the plant area is of higher quality, thereby improving the purity and accuracy of the collected plant volatiles;

[0020] The water supply and drainage mechanism can supply water to different pipes according to actual needs, so as to fully clean the pipes. At the same time, the design of the drain pipe makes it more convenient and efficient to discharge the water in the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall external structure provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of a first internal stereoscopic structure provided by an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of a second internal three-dimensional structure provided by an embodiment of the present invention;

[0025] Figure 4 A first cross-sectional structural schematic diagram provided for an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of a third internal three-dimensional structure provided by an embodiment of the present invention;

[0027] Figure 6 A second cross-sectional structural schematic diagram provided for an embodiment of the present invention;

[0028] Figure 7 The embodiment of the present invention provides Figure 6 A is an enlarged schematic diagram;

[0029] Figure 8 A schematic diagram of a partial cross-sectional structure provided by an embodiment of the present invention;

[0030] Fig. 9 The embodiment of the present invention provides Figure 8 The enlarged schematic diagram of point B in FIG.

[0031] Fig.10 A schematic diagram of the structure of an activation component (part) provided in an embodiment of the present invention;

[0032] Fig.11 A schematic diagram of the combination of a docking assembly and a docking head provided in an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Base; 2. Collection bag; 3. Shell; 4. Adsorption tube; 5. Air inlet pipe; 6. Air outlet pipe; 7. Docking mechanism; 70. Activation assembly; 701. Unloading rack; 702. High-temperature activation furnace; 7021. Furnace body; 7022. Furnace cover; 7023. C telescopic drive member; 703. A vertical rod; 704. B vertical rod; 705. Connecting frame; 706. A telescopic drive member; 71. Replacement assembly; 710. B rotating drive member; 711. Rotating frame; 712. Mounting frame; 713. Clamp; 714. B telescopic drive member; 715. Storage cabin; 72. Docking member; 721. Docking head; 722. Annular airbag; 73. Docking assembly; 731. Bracket; 732. Gear; 733, A rotating drive member; 734, rack; 735, sliding frame; 74, docking pipe; 8, water supply and drainage mechanism; 81, water tank; 82, water pump; 83, F1 pipe; 84, F2 pipe; 85, F3 pipe; 86, drainage pipe; 9, flow meter; 10, first purification component; 101, A sealed bottle body; 102, A input pipe; 103, A output pipe; 11, second purification component; 111, B sealed bottle body; 112, B input pipe; 113, B output pipe; 12, atmospheric sampler; 130, A1 pipe; 131, A2 pipe; 141, B1 pipe; 142, B2 pipe; 15, C pipe; 16, D1 pipe; 17, D2 pipe; 18, E1 pipe; 19, E2 pipe. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] See also Figures 1 to 6 , an intelligent plant volatile collection device, comprising a base 1, a collection bag 2, a shell 3 and a plurality of adsorption tubes 4, the base 1 can be movable, which is convenient for the movement of the device, the collection bag 2 is used to wrap the plants to be collected, the collection bag 2 is the existing technology, the collection bag 2 is connected with an air inlet pipe 5 and an air outlet pipe 6, the connection between the collection bag 2 and the air inlet pipe 5 and the air outlet pipe 6 is detachable, which is convenient for the replacement of the collection bag 2, the shell 3 is fixedly installed on the base 1, the adsorption tube 4 is filled with an adsorbent for adsorbing plant volatiles, the adsorption tube 4 can adopt a ProparQ adsorption column, and also includes a water supply and drainage mechanism 8 and a flow meter 9, the inlet end and the outlet end of the flow meter 9 are respectively connected with an A1 tube 130 and an A2 tube 131, the ends of the A1 tube 130 and the A2 tube 131 close to the flow meter 9 are fixedly installed with valves, and one side of the A1 tube 130 is connected with a B1 tube 141;

[0037] One end of the air outlet pipe 6 away from the collection bag 2 passes through the shell 3 and extends to the inside of the shell 3. The side of the air outlet pipe 6 located in the shell 3 is connected to the B2 tube 142. One side of the B2 tube 142 is connected to a docking mechanism 7. The docking mechanism 7 includes a docking tube 74. The docking mechanism 7 includes a docking tube 74. The docking mechanism can connect the inside of the B1 tube 141 and the B2 tube 142 to the inside of the docking tube 74 or one of the adsorption tubes 4 respectively;

[0038] One side of the A2 tube 131 is connected to the C tube 15, and one end of the C tube 15 away from the flow meter 9 is connected to the air inlet pipe 5. Taking the connection point between the A2 tube 131 and the C tube 15 as the starting point, an air extraction component, an air supply component, a first purification component 10 and a second purification component 11 are sequentially arranged along the flow path in the C tube 15. One side of the gas generating component is connected to the C tube 15 and can extract the gas inside the C tube 15. One side of the air supply component is connected to the C tube 15 and can supply gas to the inside of the C tube 15. A valve is fixedly installed on the C tube 15 and located between the air extraction component and the air supply component.

[0039] One side of the first purification component 10 is connected to the C tube 15 and can perform a first round of purification on the gas flowing into the intake pipe 5, filtering out impurity gases soluble in water; one side of the second purification component 11 is connected to the C tube 15 and can perform a second round of purification on the gas flowing into the intake pipe 5, and impurity gases insoluble in water are adsorbed by activated carbon; the water supply and drainage mechanism 8 can supply water to the inside of the A1 tube 130 and / or the A2 tube 131.

[0040] In the existing plant volatile collection device, when collecting plant volatiles, the pipeline in the device must be cleaned every time the plant volatiles are collected to improve the purity and accuracy of the collected plant volatiles. The connection and disassembly of the various components and pipelines in the existing device are relatively cumbersome, and each time the volatiles are collected, a new adsorption tube 4 needs to be replaced manually, which greatly reduces the collection efficiency when the plant volatiles are actually collected.

[0041] To this end, when collecting plant volatiles, the plants to be collected are wrapped with the collection bag 2. Since a valve is provided on the C tube 15 and located between the air extraction part, the air supply part and the C tube 15, the valve is in a closed state, and the end of the B1 tube 141 away from the flow meter 9 is connected to one end of one of the adsorption tubes 4 through the docking mechanism 7, and the end of the B2 tube 142 away from the air outlet pipe 6 is connected to the other end of one of the adsorption tubes 4, and air is supplied to the inside of the end of the C tube 15 close to the air inlet pipe 5 through the air supply part, and the gas flows along the inside of the C tube 15 through The first purification component 10 and the second purification component 11, the first purification component 10 performs a first round of purification on the gas to remove dust, particles and other impurities in the gas, and filter out impurity gases soluble in water, and humidify the gas, which helps to open the stomata on the plant leaves, thereby promoting the release of plant volatiles; the second purification component 11 further removes harmful gases, odors and tiny particles in the gas, and adsorbs impurity gases insoluble in water, ensuring that the gas entering the air inlet pipe 5 is of higher quality, and the gas enters the collection bag 2 through the air inlet pipe 5;

[0042] After the gas contacts the plants in the collection bag 2, the plant volatiles will be carried away by the gas and enter the outlet pipe 6, and then enter the adsorption tube 4 through the B2 tube 142. The adsorption tube 4 adsorbs the plant volatiles in the gas. After adsorption, the gas passes through the B1 tube 141 and the A1 tube 130 and flows through the flow meter 9. The flow meter 9 records the flow rate of the gas flowing through. At the same time, the exhaust component exhausts the inside of the end of the C tube 15C tube 15 away from the inlet pipe 5, so that the flow of the gas in the device is faster and more efficient, and the collection of plant volatiles is more efficient.

[0043] After the last plant volatiles are collected, one end of the docking tube 74 is connected to the end of the B1 tube 141 away from the flow meter 9 through the docking mechanism 7, the valve provided on the C tube 15 and located between the air extraction component, the air supply component and the C tube 15 is opened, and the connection between the air extraction component, the air supply component, the first purification component 10, and the second purification component 11 and the inside of the C tube 15 is disconnected, and the valves provided at the ends of the A1 tube 130 and the A2 tube 131 close to the flow meter 9 are controlled to be closed, and then water is supplied to the inside of the A1 tube 130 and / or the A2 tube 131 through the water supply and drainage mechanism 8;

[0044] When the collection bag 2 does not need to be replaced, it is necessary to clean the collection bag 2. At this time, the water supply and drainage mechanism 8 supplies water to the inside of the A1 tube 130 or the A2 tube 131, and the water can flow through the C tube 15, the air inlet pipe 5, the collection bag 2, the B1 tube 141, the B2 tube 142, the A1 tube 130 and the A2 tube 131. After the water flows through and fills the collection bag 2 and the above-mentioned multiple pipes, the water is discharged. The cycle can be repeated several times to achieve full cleaning of the pipes and the collection bag 2.

[0045] When the collecting bag 2 needs to be replaced, the collecting bag 2 is disconnected from the air inlet pipe 5 and the air outlet pipe 6. At this time, water is supplied to the A1 tube 130 and the A2 tube 131 at the same time through the water supply and drainage mechanism 8. Part of the water flows through the A2 tube 131, the C tube 15 and the air inlet pipe 5 and is discharged, and the other part of the water flows through the A2 tube 131, the B1 tube 141, the B2 tube 142 and the air outlet pipe 6 and is discharged, thereby cleaning the pipeline, effectively realizing the cleaning of the pipeline by the device under different conditions.

[0046] In one embodiment of the present invention, both the air extraction member and the air supply member are atmospheric samplers 12, and the atmospheric sampler 12 can adopt a QC-1B gas sampler (dual-channel type, flow rate 0.1-1.5L\min), the air inlet end of the air extraction member is connected to a D1 tube 16, and the air outlet end of the air supply member is connected to a D2 tube 17, and the ends of the D1 tube 16 and the ends of the D2 tube 17 are both connected to the inside of the C tube 15, and valves are fixedly installed on the D1 tube 16 and the D2 tube 17;

[0047] When collecting plant volatiles, close the valve between the air extraction component and the air supply component on the C tube 15. At this time, the atmospheric sampler 12 connected to the D2 tube 17 supplies air, and the gas enters the C tube 15 through the D2 tube 17. The gas passes through the C tube 15, the first purification component 10, the second purification component 11, and the air inlet pipe 5 and enters the collection bag 2. The atmospheric sampler 12 connected to the D1 tube 16 extracts air, and the gas in the collection bag 2 passes through the outlet pipe 6, the B2 tube 142, the adsorption tube 4, the B1 tube 141, the A1 tube 130, the flow meter 9, the A2 tube 131, the C tube 15, and the D2 tube 17. Enter the atmospheric sampler 12 connected to the D1 tube 16, so that the gas circulates and takes away the volatiles generated by the plants in the collection bag 2, so that the collection of plant volatiles can be more efficient.

[0048] When cleaning the pipes in the device, close the valves on the D1 pipe 16 and the D2 pipe 17. The D1 pipe 16 and the D2 pipe 17 are arranged in an inverted U shape so that water cannot enter the air extraction part and the air supply part.

[0049] In one embodiment of the present invention, the first purification component 10 includes an A sealed bottle body 101, the A sealed bottle body 101 is filled with distilled water, an A input tube 102 and an A output tube 103 are arranged on the A sealed bottle body 101, the top ends of the A input tube 102 and the A output tube 103 both pass through the top end of the A sealed bottle body 101, the bottom end of the A input tube 102 is below the liquid level of the distilled water in the A sealed bottle body 101, the bottom end of the A output tube 103 is above the liquid level of the distilled water in the A sealed bottle body 101, the top ends of the A input tube 102 and the A output tube 103 are both connected to the E1 tube 18, the ends of the two E1 tubes 18 away from the top of the A sealed bottle body 101 are both connected to the C tube 15, and a valve is fixedly installed on the C tube 15 and located between the two E1 tubes 18;

[0050] When the gas transported in the C tube 15 is purified for the first time, the valve between the two E1 tubes 18 on the C tube 15 is closed. The gas in the C tube 15 first passes through the E1 tube 18 connected to the A input tube 102 and the A input tube 102 and enters the distilled water. Then, the gas enters the C tube 15 again from the A output tube 103 and the E1 tube 18 connected to the A output tube 103. The distilled water removes impurities such as dust and particles in the gas, and filters out impurity gases dissolved in water. The distilled water can also play a humidifying role and can adjust the humidity of the gas entering the plant area. The appropriate humidity helps the stomata on the plant leaves to open, thereby increasing the release of plant volatiles.

[0051] When cleaning the pipeline, open the valve between the two E1 tubes 18 on the C tube 15 and close the valves on the two E1 tubes 18 . The E1 tubes 18 are arranged in an inverted U shape so that water cannot enter the first purification component 10 .

[0052] See also Figure 4 and Figure 5 In one embodiment of the present invention, the second purification component 11 includes a B sealed bottle body 111, the inside of the B sealed bottle body 111 is filled with activated carbon, and a B input tube 112 and a B output tube 113 are arranged on the B sealed bottle body 111. The top ends of the B input tube 112 and the B output tube 113 both pass through the top end of the B sealed bottle body 111, the bottom end of the B input tube 112 is inserted into the activated carbon, and the bottom end of the B output tube 113 is located on the upper part of the activated carbon. The top ends of the B input tube 112 and the B output tube 113 are both connected to the E2 tube 19, and the ends of the two E2 tubes 19 away from the top of the B sealed bottle body 111 are both connected to the C tube 15, and a valve is fixedly installed on the C tube 15 and located between the two E2 tubes 19;

[0053] When the gas transported in the C tube 15 is subjected to the second round of purification, the valve between the two E2 tubes 19 on the C tube 15 is closed, and the gas in the C tube 15 first passes through the E2 tube 19 connected to the B input tube 112 and the B input tube 112 and enters the activated carbon, and then the gas enters the C tube 15 again from the B input tube 112 and the E2 tube 19 connected to the B output tube 113, and the impurity gas insoluble in water is adsorbed by the activated carbon. The activated carbon has a strong adsorption capacity due to its porous structure, and can further remove harmful gases, odors and tiny particles in the gas, and remove chemical substances such as volatile organic compounds (VOCs) such as benzene, ethyl acetate, and chloroform, so as to avoid these substances from interfering with the collection of plant volatiles, and ensure that the gas entering the plant area is of higher quality;

[0054] When cleaning the pipeline, open the valve between the two E2 tubes 19 on the C tube 15 and close the valves on the two E2 tubes 19 . The E2 tubes 19 are arranged in an inverted U shape so that water cannot enter the first purification component 10 .

[0055] See also Figures 6 to 11 In one embodiment of the present invention, the docking mechanism 7 includes an activation component 70, a replacement component 71, a docking component 73 and two docking parts 72. The activation component 70 is used to activate the adsorption tube 4. The docking part 72 includes a docking joint 721. The docking joint 721 is provided with an annular groove. An annular air bag 722 is arranged inside the annular groove. One end of one docking joint 721 away from the annular groove is fixedly connected to the end of the B2 tube 142 away from the air outlet pipe 6, and the other end of the docking joint 721 away from the annular groove is fixedly connected to the end of the B1 tube 141 away from the flow meter 9. The outer sides of the two docking joints 721 are respectively connected to the docking components 73. The docking component 73 is used to drive the two docking joints 721 to move toward or in the opposite direction. The activation component 70 is used to perform high-temperature activation on the adsorption tube 4. The replacement component 71 is used to move the activated adsorption tube 4 between the two docking joints 721.

[0056] Before collecting plant volatiles, one of the adsorption tubes 4 is moved between the two docking joints 721 by replacing the assembly 71, and the two docking joints 721 are driven to move toward each other by the docking assembly 73, so that the two ends of the adsorption tube 4 are respectively inserted into the annular grooves on the two docking joints 721. At this time, the annular airbag 722 in the annular groove is squeezed by the docking joint 721 and the adsorption tube 4, and the annular airbag 722 is squeezed and deformed, and the connection between the adsorption tube 4 and the docking joint 721 is sealed, so that the adsorption tube 4 can be effectively replaced;

[0057] In one embodiment of the present invention, the docking assembly 73 includes a bracket 731, the top of the bracket 731 is fixedly connected to the inner wall of the shell 3, a gear 732 is provided at the bottom of the bracket 731, and the inner side of the gear 732 is connected to a rotating driving member A 733 for driving the gear 732 to rotate around its own axis, and racks 734 are meshed on both sides of the outer side of the gear 732, and one side of the rack 734 is slidably connected to the bracket 731, and sliding frames 735 are fixedly sleeved on the outer sides of the two docking joints 721, and the top of the sliding frame 735 is slidably connected to the bracket 731, one end of one of the racks 734 is fixedly connected to one of the sliding frames 735, and one end of the other rack 734 is fixedly connected to the other sliding frame 735, and the rotating driving member A 733 is a motor or a rotary cylinder, and the gear 732 is fixedly sleeved on the outside of the output shaft of the rotating driving member A 733, and the rotating driving member A 733 is fixedly installed on the bracket 731;

[0058] The gear 732 is driven to rotate by the A rotary driving member 733, and the gear 732 drives the two racks 734 to move toward or in opposite directions, and the two racks 734 drive the sliding frame 735 to move toward or in opposite directions, so that the two docking members 72 can move toward or in opposite directions, and docking with the adsorption tube 4 or the docking tube 74 and the two docking members 72 can be achieved, that is, the two ends of the adsorption tube 4 are respectively connected with the end of the B1 tube 141 away from the flow meter 9 and the end of the B2 tube 142 away from the air outlet pipe 6, or the two ends of the docking tube 74 are respectively connected with the end of the B1 tube 141 away from the flow meter 9 and the end of the B2 tube 142 away from the air outlet pipe 6;

[0059] In one embodiment of the present invention, the activation assembly 70 includes a feed rack 701, which is fixedly installed inside the shell 3. A high-temperature activation furnace 702 is provided at one end of the feed rack 701. The high-temperature activation furnace 702 includes a furnace body 7021, a furnace cover 7022 and a C telescopic drive member 7023. One side of the furnace body 7021 is rotatably connected to the furnace cover 7022 through a rotating shaft. The moving end of the C telescopic drive member 7023 is hinged to one side of the furnace cover 7022. The fixed end of the C telescopic drive member 7023 is hinged to the shell 3. When the furnace cover 7022 needs to be opened, the furnace cover 7022 is rotated by the telescopic movement of the moving end of the C telescopic drive member 7023, thereby realizing the opening and closing of the furnace cover 7022. The feed rack 701 is close to the furnace body 7021. One end of the high-temperature activation furnace 702 is arranged in an inclined shape, the middle part of the inclined end of the unloading rack 701 is arranged in a hollow shape, an A vertical rod 703 is arranged on the upper part of the inclined section of the unloading rack 701, and a B vertical rod 704 is arranged on the lower part of the inclined section of the unloading rack 701. The top of the A vertical rod 703 is connected to a connecting frame 705, and the bottom end of the connecting frame 705 is fixedly connected to the bottom end of the B vertical rod 704. One side of the connecting frame 705 is connected to an A telescopic driving member 706 for driving the connecting frame 705 to move along the axial direction of the A vertical rod 703. The moving end of the A telescopic driving member 706 is fixedly connected to the connecting frame 705, and the fixed end of the A telescopic driving member 706 is fixedly connected to the shell 3. The A telescopic driving member 706 and the C telescopic driving member 7023 both adopt telescopic cylinders or hydraulic cylinders.

[0060] A plurality of adsorption tubes 4 are placed on the unloading rack 701. Since one end of the unloading rack 701 close to the high-temperature activation furnace 702 is inclined, and the furnace cover 7022 is opened, the adsorption tube 4 cannot roll down along the surface of the unloading rack 701 due to the obstruction of the A vertical rod 703. When the adsorption tube 4 needs to be replaced, the connecting frame 705 is driven to move upward by the A telescopic driving member 706. The connecting frame 705 drives the A vertical rod 703 and the B vertical rod 704 to move upward. The A vertical rod 703 is separated from the contact with the adsorption tube 4 at the bottom of the unloading rack 701. The B vertical rod 704 moves up and obstructs the remaining multiple adsorption tubes 4. The A vertical rod 703 does not obstruct the rolling of the adsorption tube 4 at the bottom of the unloading rack 701. The adsorption tube 4 at the bottom of the unloading rack 701 rolls down into the furnace body 7021. The high-temperature activation furnace 702 performs high-temperature activation on the adsorbent in the adsorption tube 4, and then the furnace cover 7022 is closed, so that the adsorption tube 4 can be high-temperature activated.

[0061] In one embodiment of the present invention, the replacement component 71 includes a rotating frame 711, one side of the rotating frame 711 is rotatably connected to a mounting frame 712 via a rotating shaft, and the other side of the rotating frame 711 is connected to a B rotating driving member 710 for driving the rotating frame 711 to rotate around the axis of the rotating shaft, the B rotating driving member 710 is a motor or a rotating cylinder, the output shaft end of the B rotating driving member 710 passes through the mounting frame 712 and is fixedly connected to the rotating frame 711, the B rotating driving member 710 is fixedly installed on the mounting frame 712, the bottom end of the mounting frame 712 is fixedly connected to the shell 3, the butt joint 74 is fixedly installed on the top of the rotating frame 711, and the rotating frame Two clamps 713 for clamping the adsorption tube 4 are symmetrically arranged at the bottom of 711, and a B telescopic driving member 714 for driving the clamp 713 to move closer to or away from the rotating shaft is connected to the top of the clamp 713. The B telescopic driving member 714 is a telescopic cylinder or a hydraulic cylinder. The moving end of the B telescopic driving member 714 is fixedly connected to the clamp 713. The clamp 713 is a prior art and is not described here. The fixed end of the B telescopic driving member 714 is fixedly connected to the rotating frame 711. A storage cabin 715 for storing the adsorption tube 4 that has collected volatiles is arranged on one side of the rotating frame 711. The storage cabin 715 is fixedly installed on the side wall of the shell 3;

[0062] When the adsorption tube 4 needs to be replaced, the rotating frame 711 is driven to rotate by the B rotating driving member 710, and the rotating frame 711 drives the clamp 713 to rotate to the bottom of the adsorption tube 4 connected to the docking member 72 through the B telescopic driving member 714, and the clamp 713 is driven to move by the B telescopic driving member 714, and the clamp 713 clamps the adsorption tube 4, and the docking member 72 is separated from the adsorption tube 4 through the docking assembly 73, and then the rotating frame 711 is driven to rotate by the B rotating driving member 710 to rotate the adsorption tube 4 clamped by the clamp 713 to the storage compartment 715, and the B telescopic driving member 714 is controlled to move. 4 is telescopically moved, so that the adsorption tube 4 collecting volatiles can be placed in the storage compartment 715, effectively improving the degree of automation of collecting plant volatiles; similarly, the position of the clamp 713 is adjusted by the rotating frame 711 and the B telescopic driving member 714, so that the clamp 713 can clamp the adsorption tube 4 on the furnace body 7021, and the two clamps 713 clamp the two ends of the adsorption tube 4 respectively, and then the rotating frame 711 and the B telescopic driving member 714 drive the clamp 713 to move, so that the activated adsorption tube 4 moves to between the two docking heads 721, thereby realizing the replacement of the adsorption tube 4.

[0063] See also Figure 2 , Figure 3 , Figure 5 and Figure 6In one embodiment of the present invention, the water supply and drainage mechanism 8 includes a water tank 81 and a water pump 82. The water tank 81 is installed inside the housing 3. A water injection pipe for injecting clean water into the water tank 81 is provided on the water tank 81. The water tank 81 is filled with clean water. The water inlet of the water pump 82 is connected with the F1 pipe 83. The end of the F1 pipe 83 away from the water pump 82 is connected with the inside of the water tank 81. The water outlet of the water pump 82 is connected with the F2 pipe 84. The end of the F2 pipe 84 away from the water pump 82 is connected with the A1 pipe 130. One side of the F2 pipe 84 is connected with the F3 pipe 85. The end of the F3 pipe 85 away from the F2 pipe 84 is connected with the end of the C pipe 15 close to the A2 pipe 131. A valve is fixedly installed on the F3 pipe 85. A valve is fixedly installed on the F2 pipe 84 and on one side of the F2 pipe 84 and located at the connection between the F2 pipe 84 and the F3 pipe 85 and close to the A1 pipe 130.

[0064] When cleaning the pipeline, the water pump 82 extracts clean water from the water tank 81 through the F1 pipe 83, and the water pump 82 delivers the clean water to the A1 pipe 130 through the F2 pipe 84, and the F3 pipe 85 delivers the clean water to the A2 pipe 131. The valves on the F2 pipe 84 and the F3 pipe 85 can be closed or opened as needed to control the flow direction of the clean water, thereby supplying water to the pipeline and flushing the pipeline.

[0065] In one embodiment of the present invention, the A1 tube 130, the A2 tube 131, the B2 tube 142 and the bottom end of the air inlet pipe 5 are connected to the same drain pipe 86, the drain pipe 86 is U-shaped, the drain pipe 86 is fixedly installed in the shell 3 and both ends of the drain pipe 86 pass through the side wall of the shell 3, and the A1 tube 130, the A2 tube 131, the B2 tube 142, the air outlet pipe 6 and the air inlet pipe 5 and one end close to the drain pipe 86 are fixedly installed with a valve;

[0066] When it is necessary to drain the water in the pipeline, you can choose to open one or more of the valves located on the A1 tube 130, A2 tube 131, B2 tube 142, and the air inlet pipe 5, so that the water in the A1 tube 130, A2 tube 131, B2 tube 142, the air inlet pipe 5, and the air outlet pipe 6 can be drained into the drain pipe 86 and discharged from the drain pipe 86, thereby effectively flushing the pipeline.

[0067] It should be noted that the valves in the embodiments of the present application are all solenoid valves, specifically, pilot solenoid valves with specification model 4V210-08 can be used, which are suitable for pipelines involving gas and liquid transportation in the present application; the above-mentioned pipelines of the present application (outlet pipe 6, air inlet pipe 7, F1 pipe 83, F2 pipe 84, F3 pipe 85, A input pipe 102, A output pipe 103, B input pipe 112, B output pipe 113, A1 pipe 130, A2 pipe 131, B1 pipe 141, B2 pipe 142, C pipe 15, D1 pipe 16, D2 pipe, E1 pipe 18, E2 pipe 19) can all adopt transparent polytetrafluoroethylene tubes, and the pipelines can be fixed by U-shaped pipe clamps.

[0068] In one embodiment of the present invention, a corresponding control unit is provided for use. The control unit can select any controller to be connected to the electrical components in the present application, so as to control the opening and closing operation of each electrical component. This part is the prior art. Here, a single-chip microcomputer can be provided as a control unit for demonstration. The single-chip microcomputer in this embodiment is a typical embedded microcontroller (Microcontroller Unit), which is composed of an arithmetic unit, a controller, a memory, an input and output device, etc., which is equivalent to a microcomputer. Compared with the general-purpose microprocessor used in personal computers, it emphasizes self-supply (no external hardware) and cost saving. Its biggest advantage is that it is small in size and can be placed inside the instrument, but it has a small storage capacity, a simple input and output interface, and low functional consumption.

[0069] This application achieves precise control of gas flow and cleaning of pipelines through the coordinated work of solenoid valves, atmospheric samplers (exhaust components and air supply components), water pumps and other equipment. This automated control reduces human intervention, improves operational efficiency and accuracy, and makes the device more intelligent.

[0070] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An intelligent plant volatile collection device, comprising a base (1), a collection bag (2), a shell (3) and a plurality of adsorption tubes (4), wherein the collection bag (2) is connected to an air inlet pipe (5) and an air outlet pipe (6), and the shell (3) is fixedly mounted on the base (1), characterized in that: It also includes a water supply and drainage mechanism (8) and a flow meter (9), wherein the inlet end and the outlet end of the flow meter (9) are respectively connected to an A1 pipe (130) and an A2 pipe (131), and valves are fixedly installed at one end of the A1 pipe (130) and the A2 pipe (131) close to the flow meter (9), and one side of the A1 pipe (130) is connected to a B1 pipe (141); One end of the air outlet pipe (6) away from the collection bag (2) passes through the shell (3) and extends into the interior of the shell (3); one side of the air outlet pipe (6) located in the shell (3) is connected to the B2 tube (142); one side of the B2 tube (142) is connected to a docking mechanism (7); the docking mechanism (7) comprises a docking tube (74); the docking mechanism can connect the interior of the B1 tube (141) and the B2 tube (142) to the interior of the docking tube (74) or one of the adsorption tubes (4); One side of the A2 tube (131) is connected to the C tube (15), and one end of the C tube (15) away from the flow meter (9) is connected to the air inlet pipe (5). A gas extraction component, a gas supply component, a first purification component (10) and a second purification component (11) are sequentially arranged along the flow path in the C tube (15) with the connection point between the A2 tube (131) and the C tube (15) as the starting point. A valve is fixedly installed on the C tube (15) and located between the gas extraction component and the gas supply component. One side of the gas extraction component is connected to the C tube (15) and can extract gas from the inside of the C tube (15). One side of the gas supply component is connected to the C tube (15) and can supply gas to the inside of the C tube (15). One side of the first purification component (10) is connected to the C tube (15) and is capable of performing a first round of purification on the gas flowing into the intake pipe (5); one side of the second purification component (11) is connected to the C tube (15) and is capable of performing a second round of purification on the gas flowing into the intake pipe (5); and the water supply and drainage mechanism (8) is capable of supplying water to the inside of the A1 tube (130) and / or the A2 tube (131).

2. The intelligent plant volatiles collection device according to claim 1, characterized in that: The air extraction component and the air supply component are both atmospheric samplers (12); the air inlet end of the air extraction component is connected to a D1 tube (16); the air outlet end of the air supply component is connected to a D2 tube (17); the ends of the D1 tube (16) and the ends of the D2 tube (17) are both connected to the interior of the C tube (15); and valves are fixedly mounted on the D1 tube (16) and the D2 tube (17).

3. The intelligent plant volatiles collection device according to claim 1, characterized in that: The first purification component (10) comprises a sealed bottle body A (101), wherein the sealed bottle body A (101) is filled with distilled water. An input tube A (102) and an output tube A (103) are arranged on the sealed bottle body A (101), wherein the top ends of the input tube A (102) and the output tube A (103) both pass through the top end of the sealed bottle body A (101), wherein the bottom end of the input tube A (102) is below the liquid level of the distilled water in the sealed bottle body A (101), and the bottom end of the output tube A (103) is above the liquid level of the distilled water in the sealed bottle body A (101), wherein the top ends of the input tube A (102) and the output tube A (103) are both connected to an E1 tube (18), wherein the ends of the two E1 tubes (18) away from the top end of the sealed bottle body A (101) are both connected to a C tube (15), and a valve is fixedly installed on the C tube (15) and located between the two E1 tubes (18).

4. The intelligent plant volatiles collection device according to claim 1, characterized in that: The second purification component (11) comprises a B sealed bottle body (111), the interior of the B sealed bottle body (111) is filled with activated carbon, a B input tube (112) and a B output tube (113) are arranged on the B sealed bottle body (111), the top ends of the B input tube (112) and the B output tube (113) both pass through the top end of the B sealed bottle body (111), the bottom end of the B input tube (112) is inserted into the activated carbon, the bottom end of the B output tube (113) is located on the top of the activated carbon, the top ends of the B input tube (112) and the B output tube (113) are both connected to the E2 tube (19), the ends of the two E2 tubes (19) away from the top of the B sealed bottle body (111) are both connected to the C tube (15), and a valve is fixedly installed on the C tube (15) and located between the two E2 tubes (19).

5. The intelligent plant volatiles collection device according to claim 1, characterized in that: The docking mechanism (7) comprises an activation component (70), a replacement component (71), a docking component (73) and two docking parts (72). The activation component (70) is used to activate the adsorption tube (4). The docking part (72) comprises a docking head (721). An annular groove is formed on the docking head (721). An annular air bag (722) is arranged inside the annular groove. One end of one of the docking heads (721) away from the annular groove is fixedly connected to one end of the B2 tube (142) away from the air outlet pipe (6). The other end of the docking head (721) away from the annular groove is fixedly connected to one end of the B1 tube (141) away from the flow meter (9). The outer sides of the two docking heads (721) are respectively connected to the docking components (73). The docking components (73) are used to drive the two docking heads (721) to move toward or in opposite directions. The replacement component (71) is used to move the activated adsorption tube (4) between the two docking heads (721).

6. The intelligent plant volatiles collection device according to claim 5, characterized in that: The docking assembly (73) comprises a bracket (731), the top end of the bracket (731) is fixedly connected to the inner wall of the housing (3), the bottom of the bracket (731) is provided with a gear (732), the inner side of the gear (732) is connected with a rotating driving member (733) for driving the gear (732) to rotate around its own axis, the outer sides of the gear (732) are meshed with racks (734), the outer sides of the two docking heads (721) are fixedly sleeved with sliding frames (735), the top end of the sliding frames (735) is slidably connected to the bracket (731), one end of one of the racks (734) is fixedly connected to one of the sliding frames (735), and one end of the other rack (734) is fixedly connected to the other sliding frame (735).

7. The intelligent plant volatiles collection device according to claim 5, characterized in that: The activation assembly (70) includes a material unloading rack (701), which is fixedly installed inside the shell (3). A high-temperature activation furnace (702) is arranged at one end of the material unloading rack (701). The end of the material unloading rack (701) close to the high-temperature activation furnace (702) is arranged in an inclined shape. The middle part of the inclined end of the material unloading rack (701) is arranged in a hollow shape. An A vertical rod (703) is arranged at the upper part of the inclined section of the material unloading rack (701), and a B vertical rod (704) is arranged at the lower part of the inclined section of the material unloading rack (701). The top end of the A vertical rod (703) is connected to a connecting frame (705), and the bottom end of the connecting frame (705) is fixedly connected to the bottom end of the B vertical rod (704). One side of the connecting frame (705) is connected to an A telescopic driving member (706) for driving the connecting frame (705) to move along the axial direction of the A vertical rod (703).

8. The intelligent plant volatiles collection device according to claim 5, characterized in that: The replacement assembly (71) comprises a rotating frame (711), one side of the rotating frame (711) is rotatably connected to a mounting frame (712) via a rotating shaft, the other side of the rotating frame (711) is connected to a B rotating driving member (710) for driving the rotating frame (711) to rotate around the axis of the rotating shaft, the bottom end of the mounting frame (712) is fixedly connected to the shell (3), a butt joint pipe (74) is fixedly installed on the top of the rotating frame (711), two clamps (713) for clamping the adsorption tube (4) are symmetrically arranged at the bottom end of the rotating frame (711), the top end of the clamp (713) is connected to a B telescopic driving member (714) for driving the clamp (713) to move closer to or away from the rotating shaft, and a storage cabin (715) for storing the adsorption tube (4) that has collected volatiles is arranged on one side of the rotating frame (711), and the storage cabin (715) is fixedly installed on the side wall of the shell (3).

9. The intelligent plant volatiles collection device according to claim 1, characterized in that: The water supply and drainage mechanism (8) comprises a water tank (81) and a water pump (82). Clean water is contained in the water tank (81). The water inlet of the water pump (82) is connected to an F1 pipe (83). One end of the F1 pipe (83) away from the water pump (82) is connected to the inside of the water tank (81). The water outlet of the water pump (82) is connected to an F2 pipe (84). One end of the F2 pipe (84) away from the water pump (82) is connected to an A1 pipe (130). One side of the F2 pipe (84) is connected to an F3 pipe (85). One end of the F3 pipe (85) away from the F2 pipe (84) is connected to one end of the C pipe (15) close to the A2 pipe (131). A valve is fixedly installed on the F3 pipe (85). A valve is fixedly installed on the F2 pipe (84) and on one side of the F2 pipe (84) close to the A1 pipe (130) at the connection between the F2 pipe (84) and the F3 pipe (85).

10. The intelligent plant volatiles collection device according to claim 9, characterized in that: The A1 pipe (130), the A2 pipe (131), the B2 pipe (142) and the bottom end of the air inlet pipe (5) are connected to a same drain pipe (86), the drain pipe (86) is arranged in a U shape, the drain pipe (86) is fixedly installed in the shell (3), and both ends of the drain pipe (86) penetrate the side wall of the shell (3), and valves are fixedly installed on the A1 pipe (130), the A2 pipe (131), the B2 pipe (142), the air outlet pipe (6) and one end of the air inlet pipe (5) close to the drain pipe (86).