CN115824725A - Dust collection device and gas sampling system - Google Patents

Abstract

The invention discloses a sand dust collecting device, which relates to the technical field of gas component sampling and comprises a main box body and a power device, wherein a sand dust collecting mechanism is arranged in the main box body, an air inlet and an air outlet are also arranged on the main box body, and the air inlet and the air outlet are separated by a filtering component; after incoming flow gas enters the main box body through the air inlet, the filter assembly can block sand and dust in the incoming flow gas, and the blocked sand and dust can fall into the sand and dust collecting mechanism to be collected; wherein, the power device can drive the incoming flow gas to flow. The invention also provides a gas sampling system comprising the sand and dust collecting device. The invention can collect the sand and dust in the gas and prevent the sand and dust from blocking the working equipment.

Description

Dust collection device and gas sampling system

technical field

The invention relates to the technical field of gas component sampling, in particular to a dust collection device and a gas sampling system.

Background technique

The air generally contains sand and dust particles of different concentrations and components, and understanding their specific conditions is of great significance for air quality assessment and environmental status assessment. At the same time, many monitoring and experimental projects need to set up collection devices at their locations, which can separate and collect dust samples in the air for further analysis.

The current gas sampling devices are generally composed of sampling holes, sampling tubes, and gas storage equipment. They use the natural diffusion of air or the formation of negative pressure to drive gas into the gas storage equipment. Few of them can achieve targeted separation of dust in the air. And sampling, and there are widespread shortcomings such as dust in the collected air samples is easy to block the device, the air flow resistance is large, and the operation is complicated.

Contents of the invention

The object of the present invention is to provide a dust collection device and a gas sampling system to solve the above-mentioned problems in the prior art, to collect the dust in the gas, and to prevent the dust from clogging the working equipment.

To achieve the above object, the present invention provides the following scheme:

The invention provides a dust collection device, which includes a main box body and a power device, a dust collection mechanism is installed in the main box body, an air inlet and an air outlet are arranged on the main box body, and the air inlet It is separated from the air outlet by a filter assembly; when the incoming air enters the main box through the air inlet, the filter assembly can block the dust in the incoming air and be blocked The dust can fall into the dust collection mechanism for collection; wherein, the power device can drive the incoming gas to flow.

Preferably, the air inlet and the air outlet are respectively located on both sides of the main box, and the air inlet is opposite to the air outlet; wherein, the air inlet and the air outlet are both located on the The top of the side wall of the main box.

Preferably, the filter assembly includes a first filter assembly, the first filter assembly includes a first filter mechanism and a first baffle, the first baffle is fixed in the main box, when the incoming gas passes through the After the air inlet enters the main box, the first baffle can block the incoming gas; the first filter mechanism is installed in the dust collection mechanism and is located in the first baffle below the board.

Preferably, the first filter mechanism divides the dust collection mechanism into a first cavity and a second cavity; wherein, the first cavity is arranged close to the air inlet, and the second cavity is close to the air inlet The air outlet is provided; the top of the second cavity is provided with a third filter mechanism, and the third filter mechanism can cover the top of the second cavity.

Preferably, the first filter mechanism includes two layers of filter screens arranged in sequence along the gas flow direction, and filter paper can be inserted between the two layers of filter screens; the third filter mechanism includes a filter paper box, and the filter paper box Filter paper can be inserted inside, and filter holes are provided on the upper and lower sides of the filter paper box.

Preferably, the filter assembly further includes a second filter assembly, the second filter assembly includes a second filter mechanism and a second baffle, the second baffle is fixed in the dust collection mechanism, the first Two filter mechanisms are installed in the main box and located above the second baffle; wherein, the first filter assembly and the second filter assembly are arranged in parallel, and the first filter assembly and the second filter assembly There are a plurality of each, and the first filter assemblies and the second filter assemblies are arranged alternately along the direction from the air inlet to the air outlet.

Preferably, the dust collection mechanism is a dust collection box, and the dust collection box is detachably installed in the main box.

Preferably, the inner bottom of the main box is provided with an accommodating cavity, the bottom of the accommodating cavity is provided with a guide rail groove, the bottom of the dust collection box is provided with a sliding guide rail matching the guide rail groove, and the dust The collection box can slide along the guide rail groove, so that the dust collection tank can be installed in the accommodating cavity, or drawn out from the accommodating cavity;

The side wall of the dust collection box is also provided with a limit groove, the limit groove is arranged around the side wall of the dust collection box, a sealing ring is also arranged in the limit groove, and the dust collection The tank is sealed with the inner wall of the main tank by the sealing ring.

Preferably, the air inlet is equipped with an air inlet door, the top and the bottom of the air inlet are provided with slide grooves, and the top and bottom of the air inlet door are correspondingly provided with slide rails matching the slide grooves; wherein, The chute is parallel to the plane where the air inlet is located, and the air inlet door can slide along the chute to open or close the air inlet;

An air outlet pipe is connected to the air outlet, and the air outlet pipe is connected to the power device.

The invention also discloses a gas sampling system, which includes the above-mentioned dust collection device.

Compared with the prior art, the present invention has achieved the following beneficial technical effects:

The dust collection mechanism is installed in the main box of the present invention, and the air inlet and the air outlet of the main box are separated by a filter assembly; The sand and dust in the air are blocked, and the blocked sand and dust can fall into the dust collection mechanism for collection, so as to realize the effective collection of sand and dust in the gas and prevent the sand and dust from clogging the working equipment.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is a schematic diagram of the overall appearance of a dust collection device in an embodiment of the present invention;

Fig. 2 is a schematic diagram of the assembly of the components of the dust collection device in the embodiment of the present invention;

Fig. 3 is the structural representation of main box body in the embodiment of the present invention;

Fig. 4 is the structural representation of dust collection box in the embodiment of the present invention;

Fig. 5 is a schematic diagram of a sealing ring used in conjunction with a dust collection box in an embodiment of the present invention;

6 is a schematic diagram of the overall structure of the filter paper box in the embodiment of the present invention;

The front view of the filter paper box in the embodiment of the present invention in Fig. 7;

Fig. 8 is A-A sectional view among Fig. 7;

Fig. 9 is a schematic diagram of an air inlet door in an embodiment of the present invention;

Among them, 1 is the flange base, 2 is the dust collection box, 21 is the handle of the collection box, 22 is the filter screen, 23 is the sliding guide rail, 3 is the sealing ring, 4 is the front block, 5 is the air outlet pipe, 6 is the inlet Damper, 61 is a door handle, 62 is a slide rail, 7 is a main casing, 71 is a guide rail groove, 8 is a filter paper box, 81 is a filter paper socket, 82 is a heavy cut filter paper tank, and 9 is a first baffle plate.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The object of the present invention is to provide a dust collection device and a gas sampling system to solve the above-mentioned problems in the prior art, to collect the dust in the gas, and to prevent the dust from clogging the working equipment.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Embodiment one

As shown in Figures 1-9, the present embodiment provides a dust collecting device, which mainly includes a main box 7 and a power unit, a dust collection mechanism is installed in the main box 7, and the main box 7 An air inlet and an air outlet are also arranged on the top, and the air inlet and the air outlet are separated by a filter assembly; when the incoming air enters the main box 7 through the air inlet, the filter assembly The sand and dust in the incoming gas can be blocked, and the blocked sand and dust can fall into the dust collection mechanism for collection, thereby realizing effective collection of sand and dust in the gas and preventing sand and dust from clogging Working equipment; wherein, the power device can drive the incoming gas to flow.

In this embodiment, the dust collection mechanism is preferably a dust collection box 2 with a rectangular parallelepiped structure, and the main box 7 is also a corresponding rectangular parallelepiped box; the air inlet and the air outlet are respectively located in the main box. 7, and the air inlet is opposite to the air outlet; wherein, the air inlet and the air outlet are located at the top of the side wall of the main box 7; or, the air inlet and the air outlet can be They are respectively located on the adjacent two sides of the main box body 7, as long as it can be ensured that the incoming gas entering from the air inlet must be filtered by the filter assembly before being discharged from the air outlet. Wherein, the shapes of the dust collection box 2 and the main box body 7 can also be selected according to work needs, such as cylindrical box body or polygonal prism box body etc.

As a preferred embodiment, in this embodiment, the air inlet is located on the right side of the main box body 7, the air outlet is located on the left side of the main box body 7, and the filter assembly is located between the air inlet and the air outlet, and the filter The assembly can be sealed with the inner wall of the main box body 7 and the inner wall of the dust collection box 2 to prevent incoming air from being directly discharged from the air outlet without being filtered by the filter assembly.

In this embodiment, as shown in Figure 2, the filter assembly includes a first filter assembly, and the first filter assembly is perpendicular to the direction (left and right direction) from the air inlet to the air outlet; the first filter assembly includes a first filter assembly mechanism and the first baffle 9, wherein the first baffle 9 is fixed in the main box 7, when the incoming gas enters the main box 7 through the air inlet, the first baffle The plate 9 can block the incoming gas; the first filter mechanism is installed in the dust collection box 2, and is located below the first baffle 9, and the air blocked by the first baffle 9 The incoming gas flows downwards and is then filtered by the first filter mechanism.

In this embodiment, the first filter mechanism divides the dust collection box 2 into a first cavity and a second cavity; wherein, the first cavity is arranged close to the air inlet, and the second cavity The second cavity is arranged close to the air outlet; the top of the second cavity is provided with a third filter mechanism, and the third filter mechanism can cover the top of the second cavity; the incoming gas passes through the first After being filtered by the filter mechanism, it enters the second cavity, and after being filtered by the third filter mechanism, it is discharged from the air outlet.

In this embodiment, the incoming gas enters from the air intake door 6 and flows downward due to being hindered by the first baffle 9, and the dust carried in the incoming gas collides with the first baffle 9 and falls to the dust. In the collection box 2; after that, when the air flow flows from the right side to the left side of the dust collection box 2, it will pass through the first filter mechanism to further block and collect sand and dust; then driven by the air pump, the air flow When passing through the third filtering mechanism, the sand and dust carried by it are blocked and collected again, and then discharged from the air outlet, so as to block and collect the sand and dust particles in the incoming air.

In this embodiment, as shown in FIGS. 2-4 , the first filter mechanism includes two layers of filter screens 22, and filter paper can be inserted between the two layers of filter screens 22, wherein the front side of the filter screen 22 , the rear side and the bottom edge are all fixedly connected with the inwall of the dust collection box 2, and sealed, and the top edge of the filter screen 22 can be sealed with the bottom edge of the first baffle plate 9; and the first baffle plate 9 except the bottom edge The other sides outside are fixedly connected with the inner wall of the main box body 7 and sealed, and the bottom of the first baffle plate 9 is flush with the bottom of the front block 4 of the main box body 7, wherein the front block 4 is welded to the main box The front upper part of body 7. Described 3rd filter mechanism comprises filter paper box 8, can insert filter paper in the described filter paper box 8, and the upper and lower sides of described filter paper box 8 are all provided with filter hole; Wherein, the right side of filter paper box 8 and The first baffle plate 9 is welded and connected, and the other sides of the filter paper box 8 are welded with the inner wall of the main box 7 near the air outlet, and the filter paper box 8 is located between the air outlet and the dust collection box 2 .

In the present embodiment, the wall surface of the filter screen 22 is hollowed out in a hexagonal shape, and has a hexagonal grid with a side length of not less than 4mm, and the hollowed out area should be greater than 75% of the total area of the filter screen 22, so as to reduce Small air flow resistance; two layers of filter screens 22 are used to clamp filter paper to achieve the purpose of blocking sand and dust, filtering gas and collecting sand and dust. And the upper and lower sides of the filter paper box 8 are similar to the filter screen 22, and all do hexagonal hollow processing.

In this embodiment, as shown in Figures 6-8, the front of the filter paper box 8 has three filter paper sockets 81 from top to bottom for inserting filter paper into the filter paper box 8; The left and right sides and the rear side are provided with heavy-cut filter paper grooves 82 for supporting the filter paper put in. The heavy-cut filter paper grooves 82 on the three sides are arranged around the filter paper. In the present embodiment, three filter paper boxes can be inserted. filter paper to improve the filtering effect; wherein, the number of filter paper sockets 81 can be set as required, such as four or five.

In this embodiment, in order to facilitate the disassembly and assembly of the filter paper in the filter paper box 8, an opening corresponding to the filter paper socket 81 can be provided on the front block 4, and a sealing cover can be provided at the opening for sealing; or, a The top of the filter paper box 8 is fixedly connected with the front block 4, and the filter paper socket 81 on the filter paper box 8 exposes the front block 4 downwards, which is convenient for dismounting the filter paper. The opening through which the filter paper box 8 passes provides an installation space for the filter paper box 8 .

In this embodiment, the filter paper is preferably nylon filter paper, which can absorb sand and dust in the incoming air while filtering the incoming air.

In this embodiment, as shown in Figures 2-4, the dust collection box 2 is detachably installed in the main box body 7; as a preferred embodiment, the dust collection box 2 is a drawer type structure, which can be drawn and arranged in the main box body 7; specifically, the bottom of the main box body 7 is provided with an accommodation chamber, and the bottom of the accommodation chamber is provided with a guide rail groove 71, and the dust collection box 2 The bottom is provided with a sliding guide rail 23 matching the guide rail groove 71, and the dust collection box 2 can slide along the guide rail groove 71, so that the dust collection tank can be installed in the accommodating cavity, or out of the chamber.

In this embodiment, the sliding guide rail 23 and the guide rail groove 71 are provided with multiple channels correspondingly, and three channels are preferably provided in this embodiment; furthermore, the sliding guide rail 23 preferably adopts a symmetrical triangular guide rail of a standard size, which is convenient for processing and manufacturing, and the guide rail The slot 71 corresponds to a triangular guide rail slot.

In this embodiment, a limit groove is provided on the side wall of the dust collection box 2, and the limit groove is arranged around the side wall of the dust collection box 2, and a sealing seal is also arranged in the limit groove. ring 3, the dust collection box 2 is sealed with the inner wall of the main box body 7 through the sealing ring 3; wherein, as shown in Figure 5, the sealing ring 3 is annular as a whole, and the middle part of the front side is provided with an oblique The incision is convenient for inserting it into the limit groove; furthermore, the sealing ring 3 should be made of a material with certain elasticity, such as rubber or some elastic plastics, and the sealing ring 3 and the inner surface of the main box body 7 adopt an interference The matching method.

In this embodiment, the dust collection box 2 is provided with a collection box handle 21 directly in front of it, so that the dust collection box 2 can be pulled out from the main box body 7 or sent into the main box body 7 conveniently.

In this embodiment, the separate filtration collection method is adopted, which can specifically capture and collect the sand and dust in the incoming flow and leave less impurities in the collected samples; specifically, the separation filtration collection method refers to The first baffle plate 9 can be relied on to block sedimentation and screen filtration to separate the sand and dust in the incoming flow in a targeted manner to complete its collection work, and at the same time, the liquid phase component salt carried by the incoming flow can be reduced Mist and other gas phase components are in the dust collection device of this embodiment. The implementation of the above functions in this embodiment mainly depends on its specific filtering method; first: it has been verified that when the incoming air enters from the air inlet, the solid dust particles are larger and have a greater inertia of motion, so it is easier to Due to the failure to turn in time, the forward airflow hits the first baffle plate 9 to complete the settlement, and most of the liquid-phase salt mist and gas with light moving mass will follow the airflow movement and cannot complete the above process; second: dust collection at the bottom Between case 2 (drawer) double-deck filter screen and the filter paper that adopts in the filter paper box can be selected for selection only to filter solid sand dust particle and allow the material of fluid state to pass through to form.

In this embodiment, the air inlet is equipped with an air inlet door 6, the top and bottom of the air inlet are provided with slide grooves, and the top and bottom of the air inlet door 6 are correspondingly provided with slide rails 62, and the slide rails 62 It matches with the chute provided on the air inlet; wherein, the chute is parallel to the plane where the air inlet is located, and the air inlet door 6 can slide along the chute to open or close the air inlet. Further, as shown in FIG. 9 , a door handle 61 is provided on the outside of the air inlet door 6 to facilitate the pulling operation of the air inlet door 6 to control the flow area of the air inlet.

In this embodiment, an air outlet pipe is installed at the air outlet, and the air outlet pipe can be connected to a power device, the power device is preferably an air pump to provide power for air flow, or the power device can be a fan or the like.

In this embodiment, the main box body 7 is placed vertically, and can be welded on the flange base 1, and then fixed with connecting pieces such as bolts, so that the overall structure is more stable.

The working process of the dust collection device in the present embodiment is as follows:

When preparing to sample the sand and dust in the incoming air, insert nylon filter paper into the two-layer filter screen 22 and the filter paper box 8, connect the air outlet pipe 5 with the air pump, then pull the air inlet door 6 open, and then Turn on the air pump.

Under the suction effect of the air pump, the incoming air flows into the main box body 7 from the air inlet door 6, and is blocked by the first baffle plate 9 to flow downwards into the dust collection box 2, and then passes through the filter screen 22 from the sand and dust. The right side of the dust collection box 2 flows to the left side, and then flows upwards through the filter paper box 8, that is, flows out of the main box body 7 from the air outlet duct 5.

In the above flow process, the sand and dust in the gas are separated from the air flow successively due to the impact blocking effect of the first baffle plate 9, the adsorption of the two-layer filter screen 22 and the nylon filter paper in the filter paper box 8, and are collected in the airflow. In the dust collection box 2 and on the surface of the filter paper, dust particles in the incoming gas are collected, and the collected dust samples are concentrated and easy to extract.

In this embodiment, the first baffle plate 9 is used to block the collection of deposited sand and dust combined with two filter mechanisms, which can realize the complete and efficient collection of sand and dust in the incoming flow; and the collected sand and dust are mainly concentrated at the bottom 2 places of the dust collection box can not block the air inlet door 6, the air outlet duct 5 and the air flow path, which is conducive to reducing the flow resistance. At the same time, filter paper and the dust collection box 2 of the drawer type can be directly taken out, and the concentrated dust samples collected can be obtained very easily; the filter paper in the first filter mechanism and the filter paper box 8 can be replaced at any time, and the It is simple and can maintain a good dust filtration and collection effect for a long time. The dust collection device of this embodiment has a simple and compact structure, low cost, and is easy to process and manufacture.

In this embodiment, it needs to be explained that when the dust collection box 2 is installed in the main box body 7, the exposed side of the dust collection box 2 is the front side, and the side opposite to the front side is the back side, and the main box body 7 The side provided with the air inlet is the right side, and the side provided with the air outlet is the left side.

Embodiment two

This embodiment provides a dust collection device, which is an improvement on the basis of Embodiment 1. Compared with Embodiment 1, this embodiment also has the following characteristics:

The filter assembly in this embodiment also includes a second filter assembly, the second filter assembly includes a second filter mechanism and a second baffle, and the second baffle is fixed in the dust collection box 2, so The second filter mechanism is installed in the main box 7 and is located above the second baffle; wherein, the first filter assembly and the second filter assembly are arranged in parallel, and the first filter assembly and the second filter assembly There are multiple second filter assemblies, and the first filter assemblies and the second filter assemblies are arranged alternately along the direction from the air inlet to the air outlet.

The structure of the second filter assembly in this embodiment is basically the same as that of the first filter assembly in Embodiment 1, except that the positions of the baffle plate and the filter mechanism have been exchanged; in this embodiment, a plurality of first filter assemblies are staggered along the direction of gas flow. The component and the second filter component can filter the incoming gas multiple times, and improve the effect of blocking and collecting sand and dust in the incoming gas.

Embodiment Three

This embodiment discloses a gas sampling system, including the dust collection device in Embodiment 1 or Embodiment 2.

It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. . Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the invention, and any reference sign in a claim shall not be construed as limiting the claim concerned.

In the present invention, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention; meanwhile, for those of ordinary skill in the art, according to the present invention The idea of the invention will have changes in the specific implementation and scope of application. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (10)

1. A dust collection device, characterized in that: it comprises a main box and a power unit, a dust collection mechanism is installed in the main box, an air inlet and an air outlet are also arranged on the main box, and the The air inlet and the air outlet are separated by a filter assembly; when the incoming air enters the main box through the air inlet, the filter assembly can block the dust in the incoming air , the blocked dust can fall into the dust collection mechanism for collection; wherein, the power device can drive the incoming gas to flow. 2. The dust collection device according to claim 1, characterized in that: the air inlet and the air outlet are respectively located on both sides of the main box, and the air inlet is opposite to the air outlet ; Wherein, the air inlet and the air outlet are located at the top of the side wall of the main box. 3. The dust collecting device according to claim 2, characterized in that: said filter assembly comprises a first filter assembly, said first filter assembly comprises a first filter mechanism and a first baffle plate, said first filter assembly The plate is fixed in the main box, and when the incoming air enters the main box through the air inlet, the first baffle can block the incoming air; the first filter mechanism is installed in the It is inside the dust collection mechanism and is located below the first baffle. 4. The dust collection device according to claim 3, characterized in that: the first filter mechanism divides the dust collection mechanism into a first cavity and a second cavity; wherein the first cavity The body is set close to the air inlet, and the second cavity is set close to the air outlet; a third filter mechanism is set on the top of the second cavity, and the third filter mechanism can cover the second cavity. top of the cavity. 5. The dust collection device according to claim 4, characterized in that: the first filter mechanism comprises two layers of filter screens arranged in sequence along the gas flow direction, filter paper can be inserted between the two layers of the filter screens; The third filtering mechanism includes a filter paper box, filter paper can be inserted into the filter paper box, and filter holes are provided on the upper and lower sides of the filter paper box. 6. The dust collection device according to claim 3, characterized in that: the filter assembly also includes a second filter assembly, the second filter assembly includes a second filter mechanism and a second baffle, the second The baffle is fixed in the dust collection mechanism, and the second filter mechanism is installed in the main box and located above the second baffle; wherein, the first filter assembly and the second filter assembly Arranged in parallel, and a plurality of the first filter assemblies and the second filter assemblies are provided, and the first filter assemblies and the second filter assemblies are arranged alternately along the direction from the air inlet to the air outlet. 7. The dust collection device according to claim 1, wherein the dust collection mechanism is a dust collection box, and the dust collection box is detachably installed in the main box. 8. The dust collection device according to claim 7, characterized in that: the bottom of the main box body is provided with an accommodation chamber, the bottom of the accommodation chamber is provided with a guide rail groove, and the bottom of the dust collection box is provided with a A sliding guide rail matched with the guide rail groove, the dust collection box can slide along the guide rail groove, so that the dust collection tank can be installed in the accommodating cavity, or drawn out from the accommodating cavity; The side wall of the dust collection box is also provided with a limit groove, the limit groove is arranged around the side wall of the dust collection box, a sealing ring is also arranged in the limit groove, and the dust collection The tank is sealed with the inner wall of the main tank by the sealing ring. 9. The dust collection device according to claim 1, characterized in that: the air inlet is equipped with an air inlet door, the top and the bottom of the air inlet are provided with chute, the top and the bottom of the air inlet door correspond to A slide rail matching the chute is provided; wherein, the chute is parallel to the plane where the air inlet is located, and the air inlet door can slide along the chute to open or close the air inlet; An air outlet pipe is connected to the air outlet, and the air outlet pipe is connected to the power device. 10. A gas sampling system, characterized by comprising the dust collection device according to any one of claims 1-9.

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