CN213779641U

CN213779641U - Atmospheric particulate collection device

Info

Publication number: CN213779641U
Application number: CN202021795594.7U
Authority: CN
Inventors: 王琰; 钟雪晴; 蔡函青; 张海; 邓秀清
Original assignee: Sichuan Sainasi Analysis And Testing Co Ltd
Current assignee: Sichuan Sainasi Analysis And Testing Co Ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-07-23
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses an atmospheric particulate collection device, which is used for solving the problem of low collection efficiency caused by slow floating speed when the existing atmospheric particulate collection device floats upwards by utilizing a balloon, and comprises a base, a rolling wheel which can rotate is arranged on the base, a traction pipe is wound on the rolling wheel and connected with the balloon, an air flow channel is formed in the middle of the traction pipe, a gap for air to flow through is formed between the bottom of the balloon and the air flow channel, one end of the traction pipe is fixedly connected with the balloon, the other end of the traction pipe is wound on the rolling wheel and communicated with an exhaust fan arranged on the base, an air inlet of the exhaust fan is communicated with a first air inlet pipe and a second air inlet pipe, the second air inlet pipe is communicated with the traction pipe, one end of the first air inlet pipe is a free end, the other end of the first air inlet pipe is communicated with an air inlet of the exhaust fan.

Description

Atmospheric particulate collection device

Technical Field

The utility model belongs to the technical field of atmospheric particulates detection; in particular to an atmospheric particulate collection device.

Background

Along with the higher living standard of people, the requirement on air quality is higher, and therefore, the sampling detection on the atmosphere is more and more. The important steps of atmospheric environment detection during atmospheric sampling have great reliability relation to detection data, and methods for collecting atmospheric samples mainly comprise two types: one is to make a large amount of air pass through a liquid absorbent or a solid adsorbent to absorb or retain pollutants, and enrich the original pollutants with lower concentration in the atmosphere, such as an air extraction method and a filter membrane method. The result of measurements with this type of method is the average concentration of the contaminants in the atmosphere over the sampling time. Another type is to use containers (glass bottles, plastic bags, rubber bladders, syringes, etc.) to collect air containing contaminants. Such methods are useful in situations where the concentration of pollutants in the atmosphere is high; or the sensitivity of the determination method is higher; contaminated gases and vapors that are not readily absorbed by liquid absorbents or solid adsorbents. The result of this measurement is the instantaneous concentration or the average concentration in a short time of the pollutants in the atmosphere.

The current methods for collecting air containing pollutants by using containers mainly comprise two methods: for high-altitude atmospheric sampling, atmospheric samples are mainly collected in modes of balloons, aircrafts and the like; for low-altitude atmospheric sampling, a handheld device is mainly adopted for collecting the atmospheric sample.

For high-altitude atmospheric sampling, cost control is limited, and currently, a balloon sampling mode is mainly adopted. In the prior art, technical documents about collecting air samples by using balloons are more, for example, a utility model patent with application number 201920561410.1 discloses an atmospheric particulate matter collecting and detecting device, which comprises a base, an induced draft fan, a collecting box and an atmospheric particulate matter concentration monitor; a motor is installed above the base, a wireless remote controller is placed above the base on one side of the motor, the collection box is installed above the base plate, an induced draft fan is installed on one side of the collection box in a penetrating mode, an atmospheric particulate matter concentration monitor is installed inside the collection box, a control box is installed on the other side of the collection box, and a hydrogen balloon is installed above the collection box; the output end of the motor is provided with a rope winding wheel, the surface of the rope winding wheel is wound with a traction pipe, and the top end of the traction pipe is fixedly connected with the bottom of the base plate; the collection box side of control box top is run through and is installed out the tuber pipe, the surface mounting who goes out the tuber pipe has the solenoid valve, the ventilation hole has been seted up to the collection box inboard of draught fan below.

However, the manner of bringing the collecting and detecting device together into the high altitude through the balloon has very high requirements on the bearing capacity of the balloon, which results in higher manufacturing cost; when an accident occurs (such as the balloon traction tube is broken under the condition of external force, and the balloon is damaged), because the number of components of the detection device carried by the balloon is large, a large potential safety hazard also exists.

Meanwhile, the balloons used by the existing collecting device are all filled with hydrogen or helium and the like, and the balloon ascends by utilizing the buoyancy of the balloon per se to naturally float, so that the ascending speed of the balloon is slower.

SUMMERY OF THE UTILITY MODEL

Based on above technical problem, the utility model provides an atmospheric particulates collection system can improve the speed of balloon come-up, is convenient for carry out atmospheric collection with balloon come-up to appointed altitude fast, improves the speed that atmospheric was gathered, is convenient for detect atmospheric particulates fast.

For solving the above technical problem, the utility model discloses a technical scheme as follows:

an atmospheric particulate collection device comprises a base, wherein a rolling wheel capable of rotating is arranged on the base in a matching mode, a traction tube is wound on the rolling wheel and connected with a balloon, and the atmospheric particulate collection device is characterized in that an air flow channel is formed in the middle of the traction tube, a gap for air to flow through is formed between the bottom of the balloon and the air flow channel, one end of the traction tube is fixedly connected with the balloon, the other end of the traction tube is wound on the rolling wheel and communicated with an exhaust fan arranged on the base, an air inlet of the exhaust fan is communicated with a first air inlet tube and a second air inlet tube, the second air inlet tube is communicated with the traction tube, one end of the first air inlet tube is a free end, the other end of the first air inlet tube is communicated with the air inlet of the exhaust fan, and the first air inlet tube and the second air inlet tube are both provided with switch valves; the air outlet of the exhaust fan is communicated with a first air outlet pipe and a second air outlet pipe, the second air outlet pipe is a gas collecting end, and the first air outlet pipe is communicated with the traction pipe.

In some embodiments, the air outlet of the exhaust fan is communicated with a first electromagnetic directional valve, and two outlets of the first electromagnetic directional valve are respectively communicated with a first air outlet pipe and a second air outlet pipe.

In some embodiments, the first air outlet pipe is communicated with the traction pipe at a position far away from the exhaust fan compared with the position of the switch valve on the second air inlet pipe.

In some embodiments, a guide cylinder is arranged in the air flow channel at the end, connected with the balloon, of the traction tube, the guide cylinder is conical, the axis of the guide cylinder coincides with the vertical center line of the air flow channel, the tip of the guide cylinder is located in the air flow channel, a gap for air flow to pass through is formed between the tip of the guide cylinder and the inner wall of the air flow channel, and the large-diameter end of the guide cylinder extends out of the traction tube.

In some embodiments, the guide shell is provided with connecting pins at two sides, and the inner wall of the traction tube is provided with pin shaft holes matched with the connecting pins.

In some embodiments, the balloon is attached to the draft tube at a position intermediate the plane.

In some embodiments, the second outlet pipe is communicated with a collecting cylinder for collecting atmosphere.

In some embodiments, a hollow rotating shaft with a cavity is arranged in the middle of the winding wheel, and two ends of the hollow rotating shaft are arranged on the bearing seats; the end part of the traction tube wound on the winding wheel is communicated with the cavity of the hollow rotating shaft, a sealing cover is arranged at one end of the hollow rotating shaft in a matching mode, a piston head is sleeved on the periphery of the other end of the hollow rotating shaft, and the piston head extends into the second air inlet tube and is sealed with the second air inlet tube.

In some embodiments, a plurality of wear-resistant sealing rings are arranged on the periphery of the piston head and/or the inner wall of the second air inlet pipe.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

in the use process of the atmospheric particulate collection device, firstly, the balloon begins to float up by releasing the traction tube on the rolling wheel, in the floating up process of the balloon, the switch valve of the first air inlet pipe of the exhaust fan is in an open state, the switch valve of the second air inlet pipe is in a closed state, the air outlet of the exhaust fan is mutually communicated with the first air outlet pipe through the first electromagnetic directional valve (at the moment, the first electromagnetic directional valve is not communicated with the second air outlet pipe in a cutting way), the external air flow is sucked from the first air inlet pipe, passes through the exhaust fan, is discharged from the first air outlet pipe, enters the traction tube and is discharged through the air flow channel of the traction tube, thereby from up jetting down to the air current to improve the speed of balloon come-up, be convenient for carry out atmospheric collection with balloon come-up to appointed altitude fast, improve the speed that atmospheric was gathered, be convenient for detect atmospheric particulates fast.

When the balloon reachd appointed altitude, the ooff valve of the first intake pipe of air exhauster is in the off-state, the ooff valve of second intake pipe is in the on-state, the export of the first electromagnetic directional valve of air exhauster gas outlet and second outlet duct intercommunication each other (this moment, first electromagnetic directional valve cuts off with first outlet duct and does not communicate), the air exhauster inhales the atmosphere in the air from the air current passageway, and input to the collection section of thick bamboo in through the second outlet duct of air exhauster, thereby accomplish the collection to the atmosphere in the air, be convenient for detect the atmospheric particulate matter. And after sampling is finished, closing the exhaust fan, and withdrawing the balloon through the traction tube. Compared with the prior art, when the high-altitude atmosphere is collected, the utility model only needs to put the balloon into the high altitude, and the balloon does not need to carry gas equipment in the whole floating process, so that the volume of the balloon can be reduced, and the manufacturing cost is reduced; more importantly, after the traction tube is blocked (or the balloon is damaged) under the action of external force, no additional injury is caused, and the use safety is ensured.

Simultaneously the utility model discloses a structural design, the air exhauster can enough blow the air current to the balloon drive balloon come-up to the air current passageway internal input gas, thereby the air exhauster can be with atmospheric collection in the high altitude to the collection cylinder in realizing again, has design benefit's characteristics, can simplify collection system's structure greatly.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention,

FIG. 2 is a schematic view of a portion A of FIG. 1;

FIG. 3 is a schematic enlarged view of a portion B of FIG. 1;

FIG. 4 is a schematic view of a portion of FIG. 1 at C;

FIG. 5 is a schematic view of the connection between the hollow shaft and the second intake pipe of the exhaust fan;

the labels in the figure are: 1. the device comprises a base, 101, a universal wheel, 102, a handrail, 2, a winding wheel, 201, a mounting rack, 202, an adjusting screw rod, 203, a locking nut, 204, a hollow rotating shaft, 2041, a piston head, 2042, a wear-resistant sealing ring, 205, a bearing seat, 3, a traction pipe, 301, an airflow channel, 302, a guide cylinder, 303, a connecting shaft, 304, a pin shaft hole, 4, a balloon, 5, an exhaust fan, 501, a first air inlet pipe, 502, a second air inlet pipe, 503, a switch valve, 504, a first electromagnetic reversing valve, 505, a first air outlet pipe, 506, a second air outlet pipe and a 6 collecting cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it should be understood that the terms "one end", "the other end", "both ends", "between", "middle part", "lower part", "upper end", "lower end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

With the help of the accompanying drawings, the utility model discloses an atmospheric particulates collection system, including being used for placing subaerial base 1, the winding has traction tube 3 on winding wheel 2, wherein, installs universal wheel 101 and handrail 102 on the base 1, through universal wheel and handrail 102, the removal and the transport of the base of being convenient for, set on the base 1 and can carry out pivoted winding wheel 2, in some embodiments, install mounting bracket 201 on the base 1, winding wheel 2 installs on mounting bracket 201, and mounting bracket 201 sets adjusting screw 202, and adjusting screw 202 of the adjusting screw 202 of mounting bracket 201 upside and the adjusting screw 202 of mounting bracket 201 downside all set lock nut 203, can adjust the interval between winding wheel 2 and the base 1 through lock nut 203 and adjusting screw 202 to can adjust winding traction tube 3's length on winding wheel 2 according to the in service behavior. The traction tube 3 is connected with balloon 4, the middle part of traction tube 3 is formed with

airflow channel

301, 4 connections of balloon are on traction tube 3 and make and form the clearance that is used for the air to flow through between balloon 4 and the airflow channel 301, that is to say that airflow 4 can not block up airflow channel 301, be convenient for obtain the atmosphere from the high altitude in the airflow channel 301 through traction tube 3, thereby draw out the atmosphere from airflow channel 301 of traction tube 3 and collect and detect, also be convenient for simultaneously spout the air current from airflow channel 301 of traction tube 3, be convenient for to drive 3 come-ups of balloon, accelerate the speed of balloon come-up, thereby improve the efficiency that the atmosphere was gathered. One end of the traction tube 3 is fixedly connected with the balloon 4, the other end of the traction tube 3 is wound on the winding wheel 2 and is communicated with an exhaust fan 5 mounted on the base 1, an air inlet of the exhaust fan 5 is communicated with a first air inlet tube 501 and a second air inlet tube 502, the second air inlet tube 502 is communicated with the traction tube 3, one end of the first air inlet tube 501 is a free end, the other end of the first air inlet tube 501 is communicated with an air inlet of the exhaust fan 5, the first air inlet tube 501 and the second air inlet tube 502 are both provided with a switch valve 503, that is, the first air inlet tube 501 and the second air inlet tube 502 can supply air to the exhaust fan 5, and the first air inlet tube 501 or the second air inlet tube 502 is controlled to supply air to the exhaust fan through the switch valve 503; the air outlet of the exhaust fan 5 is communicated with a first air outlet pipe 505 and a second air outlet pipe 506, the second air outlet pipe 506 is a gas collecting end, and the first air outlet pipe 505 is communicated with the traction pipe 3. The first air outlet pipe 505 is used for introducing air flow into the air flow channel 301 of the traction pipe 3, so that a balloon connected to the traction pipe 3 can be conveniently blown; the second outlet 506 is used for collecting the gas.

In some embodiments, the traction tube of the present invention may be made of polyethylene, which has the characteristics of light weight, flexibility and hardness.

In some embodiments, the air outlet of the exhaust fan 5 is communicated with a first electromagnetic directional valve 504, and two outlets of the first electromagnetic directional valve 504 are respectively communicated with a first air outlet pipe 505 and a second air outlet pipe 506. That is, the air outlet of the suction fan can be controlled to be communicated with the first air outlet pipe 505 or the second air outlet pipe 506 through the first electromagnetic directional valve 504.

In some embodiments, the first outlet pipe 505 is communicated with the traction pipe 3 at a position farther from the exhaust fan 5 than the position of the on-off valve 503 on the second inlet pipe 502. Thereby being convenient for ensuring that the gas sprayed out of the first air outlet pipe 505 can enter the traction pipe 3 and be sprayed out of the air flow channel 301 of the traction pipe 3 for blowing the balloon.

In some embodiments, the second air outlet pipe 506 is connected to a collecting barrel 6 for collecting the atmosphere, that is, the atmosphere adsorbed from the high air is blown into the collecting barrel 6 through the second air outlet pipe 506, and the gas is collected through the collecting barrel 6. In some embodiments, when the air in the high hole is sucked through the air flow passage in the traction tube by the suction fan, the second air outlet pipe 506 can be discharged for a first period of time in advance, so that the air in the high space is filled with the traction tube, the suction fan and the air flow passage between the traction tube and the suction fan, and therefore it is ensured that the air discharged from the second air outlet pipe 506 is the air in the high space.

In some embodiments, a guide cylinder 302 is provided in the air flow channel 301 at the end of the traction tube 3 connected to the balloon 4, the guide cylinder 302 is conical, the axis of the guide cylinder 302 coincides with the vertical center line of the air flow channel 301, the tip of the guide cylinder 302 is located in the air flow channel 301 and forms a gap for the air flow to pass through with the inner wall of the air flow channel 301, and the large-diameter end of the guide cylinder 302 extends out of the traction tube 3. The conical guide cylinder 302 can facilitate the dispersion of the gas in the gas flow channel 301, so that the gas is uniformly sprayed to the bottom of the balloon 4 from the outer wall of the guide cylinder 302, and the stress uniformity of the balloon 4 is guaranteed.

In some embodiments, the both sides of draft tube 302 are provided with connecting pin 303, set up the round pin shaft hole 304 with the mutual adaptation of connecting pin 303 on the inner wall of traction tube 3, draft tube 302 is connected through connecting pin 303, thereby make can rotate of draft tube 302, the flexibility of guarantee draft tube 302 use, when making balloon 4 float under the effect of outside air current, draft tube 302 can in time angle of adjustment, thereby make the gas can blow towards the bottom of balloon 4 in the air current passageway 301 of traction tube 3, the homogeneity of guarantee traction tube to balloon blowing.

In some embodiments, the balloon 4 is attached to the guide shell 302 at a position intermediate the plane.

In some embodiments, a hollow rotating shaft 204 with a cavity is provided in the middle of the winding wheel 2, two ends of the hollow rotating shaft 204 are mounted on bearing seats 205, and the bearing seats 205 are mounted on the base 1 or the mounting frame 201; when the mounting frame 201 is mounted on the base, two ends of the hollow rotating shaft 204 are mounted on the mounting frame 201 through the bearing seat 205, the end portion of the traction pipe 5 wound on the winding wheel 2 is communicated with the cavity of the hollow rotating shaft 204, a sealing cover is arranged at one end of the hollow rotating shaft 204, a piston head 2041 is sleeved on the periphery of the other end of the hollow rotating shaft 204, and the piston head 2041 extends into a second air inlet pipe 502 of the exhaust fan 5 and is sealed with the second air inlet pipe 502.

In some embodiments, a plurality of wear-resistant sealing rings 2042 are disposed on the periphery of the piston head 2041 and/or the inner wall of the air inlet pipe 501 of the exhaust fan 5, the hollow rotating shaft 204 and the air inlet pipe 501 are hermetically connected through the wear-resistant sealing rings 2042, and the hollow rotating shaft 204 does not affect the air inlet pipe 501 during rotation.

The utility model discloses a hollow shaft 204 bright night piston head 2041's structural design, the traction tube 3 of being convenient for can not influence the flow of air current following winding wheel 2 and carrying out the pivoted in-process, also can not make second intake pipe 502 take place the condition that the winding was knoed.

In some embodiments, a forward and reverse rotation motor for driving the hollow rotating shaft 204 to rotate is installed on the base 1 or the mounting frame 201, and the rotation of the winding wheel 2 is realized through the forward and reverse rotation motor, so as to release the traction tube or accommodate the traction tube 3.

The embodiment of the present invention is the above. The foregoing is the preferred embodiments of the present invention, and if the preferred embodiments in the preferred embodiments are not obviously contradictory or are based on a certain preferred embodiment, the preferred embodiments can be combined and used by any superposition, and the specific parameters in the embodiments and examples are only for the purpose of clearly expressing the utility model verification process of the utility model, and are not used for limiting the patent protection scope of the present invention, which is still based on the claims, and all the equivalent structural changes made by the contents of the specification and the drawings should be included in the protection scope of the present invention.

Claims

1. The atmospheric particulate collection device comprises a base (1), wherein a winding wheel (2) capable of rotating is arranged on the base (1), a traction tube (3) is wound on the winding wheel (2), the traction tube (3) is connected with a balloon (4), and the atmospheric particulate collection device is characterized in that an air flow channel (301) is formed in the middle of the traction tube (3), a gap for air to flow through is formed between the bottom of the balloon (4) and the air flow channel (301), one end of the traction tube (3) is fixedly connected with the balloon (4), the other end of the traction tube (3) is wound on the winding wheel (2) and is communicated with an exhaust fan (5) installed on the base (1), an air inlet of the exhaust fan (5) is communicated with a first air inlet pipe (501) and a second air inlet pipe (502), and the second air inlet pipe (502) is communicated with the traction tube (3), one end of the first air inlet pipe (501) is a free end, the other end of the first air inlet pipe (501) is communicated with an air inlet of the exhaust fan (5), and the first air inlet pipe (501) and the second air inlet pipe (502) are both provided with a switch valve (503); the air outlet of the exhaust fan (5) is communicated with a first air outlet pipe (505) and a second air outlet pipe (506), the second air outlet pipe (506) is a gas collecting end, and the first air outlet pipe (505) is communicated with the traction pipe (3).

2. The atmospheric particulate collection device according to claim 1, wherein an air outlet of the exhaust fan (5) is communicated with a first electromagnetic directional valve (504), and two outlets of the first electromagnetic directional valve (504) are respectively communicated with a first air outlet pipe (505) and a second air outlet pipe (506).

3. The atmospheric particulate collection device of claim 1, wherein the first outlet pipe (505) is communicated with the traction pipe (3) at a position farther away from the exhaust fan (5) than the position of the on-off valve (503) on the second inlet pipe (502).

4. The atmospheric particulate collection device according to any one of claims 1 to 3, wherein a guide cylinder (302) is provided in the air flow channel (301) at one end of the traction tube (3) connected to the balloon (4), the guide cylinder (302) is conical, the axis of the guide cylinder (302) and the vertical center line of the air flow channel (301) coincide with each other, the tip of the guide cylinder (302) is located in the air flow channel (301) and forms a gap for the air flow to pass through with the inner wall of the air flow channel (301), and the large-diameter end of the guide cylinder (302) extends out of the traction tube (3).

5. The atmospheric particulate collection device of claim 4, wherein connecting pins (303) are arranged on two sides of the guide shell (302), and pin shaft holes (304) matched with the connecting pins (303) are formed in the inner wall of the traction tube (3).

6. The atmospheric particulate collection device of claim 4, wherein the balloon (4) is connected to the guide shell (302) at a position in the middle of the upper plane.

7. The atmospheric particulates collection device of claim 1, wherein the second outlet duct (506) is communicated with a collecting cylinder (6) for collecting atmospheric air.

8. The atmospheric particulate collection device according to claim 1, wherein a hollow rotating shaft (204) with a cavity is provided in the middle of the winding wheel (2), and both ends of the hollow rotating shaft (204) are mounted on bearing seats (205); the winding is in intercommunication each other at the tip of the traction tube (3) of rolling wheel (2) and the cavity of hollow pivot (204), the one end of hollow pivot (204) sets sealed lid, the periphery cover of the other end of hollow pivot (204) is equipped with piston head (2041), piston head (2041) stretch into in second intake pipe (502) and with second intake pipe (502) mutual sealing.

9. The atmospheric particulate collection device of claim 8, wherein a plurality of wear-resistant sealing rings (2042) are arranged on the periphery of the piston head (2041) and/or the inner wall of the second air inlet pipe (502).