Pipeline type jet drainage negative pressure dust collection device

Abstract

The utility model provides a pipeline type jet drainage negative pressure dust collection device, relates to the technical field of dust collection equipment, and solves the technical problem that a collection end has no negative pressure or is too small in negative pressure due to the fact that a pipeline is too long in the prior art. The device comprises at least one jet drainage assembly arranged on a pipeline, the jet drainage assembly is provided with an air passing cavity, the air passing cavity is provided with an injection air inlet and an injection air outlet, the injection air inlet is communicated with the outside and used for being connected with external air supply equipment, and the injection air outlet faces the airflow direction in the pipeline. According to the utility model, the jet drainage assembly is arranged to jet the dust-containing gas towards the airflow direction in the pipeline to guide the dust-containing gas to flow forwards along the pipeline, so that the collection end is kept at higher negative pressure, and the dust collection effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collection equipment, in particular to a pipeline type jet drainage negative pressure dust collection device. Background Art

[0002] In some dusty production environments, such as workshop production environments, in order to prevent dust from affecting the health of production personnel, negative pressure dust suction equipment is often used to attract dust to dust treatment equipment for treatment. Negative pressure dust suction equipment usually includes a negative pressure fan end and a dust collection end, which are often not located in the same position and are usually connected by pipelines. In practice, there are often problems such as no negative pressure at the dust collection end of the equipment or too small negative pressure and low dust collection efficiency due to reasons such as too long pipelines, insufficient air volume and air pressure of the dust collector fan, etc. Utility Model Content

[0003] The purpose of the utility model is to provide a pipeline-type jet drainage negative pressure dust suction device, which solves the technical problem of no negative pressure or too low negative pressure at the collection end caused by too long a pipeline in the prior art. The preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects as described below.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a pipeline-type jet drainage negative pressure dust suction device, comprising at least one jet drainage component arranged on a pipeline, the jet drainage component having an air passage cavity, the air passage cavity having an induced air inlet and an induced air outlet, the induced air inlet being connected to the outside and used for connecting to an external air supply device, and the induced air outlet facing the airflow direction in the pipeline.

[0006] Preferably, the air passage cavity is an annular cavity arranged along the circumference of the pipeline, and the induced air outlets are multiple and arranged in a ring shape.

[0007] Preferably, the induced air outlet is close to the outer wall of the pipeline.

[0008] Preferably, the jet drainage assembly is a cylindrical body, and the pipeline is connected through the cylindrical body.

[0009] Preferably, the cylindrical body comprises an outer cylinder and an inner cylinder, and the induced air outlet is arranged on the end wall of the cylindrical body and is located between the outer cylinder and the inner cylinder.

[0010] Preferably, both ends of the cylindrical body are connected to the pipeline through flanges, and the induced air outlet is located on the flange and inside the bolt holes of the flange.

[0011] Preferably, the outer cylinder at one end of the cylindrical body is provided with an annular air passage cavity, the induced air inlet is provided on the outer wall of the air passage cavity, and the induced air outlet is provided at the other end of the cylindrical body.

[0012] Preferably, the number of the jet drainage components is two or more and they are evenly arranged along the length direction of the pipeline.

[0013] This application adopts the above technical solution, which has at least the following beneficial effects:

[0014] A pipeline-type jet drainage negative pressure dust suction device includes at least one jet drainage component arranged on the pipeline, the jet drainage component has an air passage cavity, the air passage cavity has an induced wind inlet and an induced wind outlet, the induced wind inlet is connected to the outside and is used to connect to an external air supply device, the air supply device can provide compressed gas, the induced wind outlet faces the air flow direction in the pipeline, and the compressed gas passes through the air passage cavity and is ejected through the induced wind outlet, enters the interior of the pipeline and drives the dust-containing gas to flow forward along the pipeline, so that the collection end maintains a high negative pressure and thus ensures the dust suction effect. According to the length of the pipeline and the actual negative pressure fan power, at least one jet drainage component can be appropriately arranged in the pipeline to meet the dust suction effect of the collection end.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a cross-sectional structural diagram of the installation of the pipeline type jet drainage negative pressure dust suction device provided by the embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the pipeline-type jet drainage negative pressure dust suction device provided in an embodiment of the utility model.

[0019] In the figure, 1, jet drainage assembly; 2, air passage cavity; 3, induced air inlet; 4, induced air outlet; 5, outer cylinder; 6, inner cylinder; 7, flange; 8, bolt hole; 9, pipeline. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0021] The specific embodiment of the utility model provides a pipeline type jet drainage negative pressure dust suction device, combined with the attached Figure 1 and attached Figure 2 As shown, it mainly includes at least one jet drainage component 1 arranged on the pipeline 9, the jet drainage component 1 is provided with an air passage cavity 2, the air passage cavity 2 is used to pass compressed gas, the air passage cavity 2 is provided with an induced wind inlet 3 and an induced wind outlet 4, the induced wind inlet 3 is connected with the outside and is used to connect to the external air supply equipment, the external air supply equipment is used to provide compressed gas for the pipeline jet drainage negative pressure dust suction device, the induced wind outlet 4 is toward the air flow direction in the pipeline 9, the compressed gas is ejected through the induced wind outlet 4, and the ejection direction is toward the air flow direction, so that the dust-containing gas can be guided to flow forward along the pipeline by ejecting compressed gas, so that the collection end maintains a higher negative pressure and thus ensures the dust suction effect.

[0022] External air supply equipment can be a fixed air source, fan, air compressor, etc.

[0023] In a specific embodiment of the present application, the air passage cavity 2 is an annular cavity arranged along the circumference of the pipeline 9, and the number of induced air outlets 4 is multiple and arranged in a ring shape. Such an arrangement realizes the diversion of gas in the multiple induced air outlets 4 through the annular cavity, ensuring that the multiple induced air outlets 4 arranged in a ring shape can all spray air, so that the air can be sprayed from the circumference, which is more conducive to driving the movement of the dust-containing gas.

[0024] In another embodiment of the present application, the induced air outlet 4 is close to the outer wall of the pipeline 9, so that it can be sprayed toward the airflow direction from the inner wall of the pipeline 9, which can take away dust particles attached to the pipeline and prevent blockage.

[0025] In another embodiment of the present application, the jet drainage assembly 1 can be designed as a cylindrical body, and the pipeline 9 is connected through the cylindrical body, so that the middle space of the cylindrical body is connected to the pipelines 9 at both ends, and the cylindrical body is provided with an air cavity 2, an induced air inlet 3 and an induced air outlet 4. The lower part of the pipeline 9 of the original equipment can be cut off and then the pipeline jet drainage negative pressure dust suction device of the present application can be directly used without replacing the entire negative pressure dust suction equipment, thereby reducing costs.

[0026] Specifically, the cylindrical body in the present application includes an outer cylinder 5 and an inner cylinder 6. The induced air outlet 4 is arranged on the end wall of the cylindrical body and is located between the outer cylinder 5 and the inner cylinder 6. The air passage cavity 2 can be a space located between the outer cylinder 5 and the inner cylinder 6. The size of the inner cylinder 6 is smaller than the size of the pipeline 9. For example, when the cylindrical body and the pipeline 9 are both cylindrical structures, the diameter of the inner cylinder 6 is smaller than the inner diameter of the pipeline 9, ensuring that the induced air outlet 4 can be arranged in a ring shape close to the inner wall of the pipeline 9.

[0027] In another embodiment of the present application, both ends of the cylindrical body are connected to the pipeline 9 through a flange 7, and the flange 7 is used to achieve a stable and sealed connection. The induced air outlet 4 is located on the flange 7 and on the inner side of the bolt hole 8 of the flange 7. The induced air outlet 4 arranged in a ring shape on the flange 7 evenly sprays compressed gas from the circumferential direction.

[0028] In the present application, an annular air passage cavity 2 is arranged on the outer cylinder 5 at one end of the cylindrical body, an induced air inlet 3 is arranged on the outer wall of the air passage cavity 2, an induced air outlet 4 is arranged at the other end of the cylindrical body, and a partially straight air passage cavity 2 is formed between the outer cylinder 5 and the inner cylinder 6 and is connected to the annular part of the air passage cavity 2. The compressed gas supplied by the external air supply equipment enters the annular air passage cavity 2, and the compressed gas fills the annular part of the air passage cavity 2. Then the gas is drained to the induced air outlet 4 through the straight air passage cavity 2 and is ejected from the induced air outlet 4.

[0029] The straight air passage cavity 2 may be an annular tube structure between the outer tube 5 and the inner tube 6, and the induced air outlet 4 is a small hole opened on the flange 7, and the diameter of the small hole ranges from 2mm to 1cm, and this size can be designed according to the actual size of the pipeline 9 to meet the needs.

[0030] In a specific embodiment of the present application, the number of jet drainage assemblies 1 can be two or more and they can be evenly arranged along the length direction of the pipeline 9. When the length of the pipeline 9 between the negative pressure fan and the dust collection end is long, two or more jet drainage assemblies 1 can be arranged on the pipeline 9 to provide compressed gas from at least two positions in the middle, thereby further improving the dust collection efficiency of the dust collection end.

[0031] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", "some examples", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0032] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A pipeline type jet drainage negative pressure dust suction device, characterized in that: It includes at least one jet drainage component arranged on the pipeline, the jet drainage component has an air passage cavity, the air passage cavity has an induced air inlet and an induced air outlet, the induced air inlet is connected to the outside and is used to connect to external air supply equipment, and the induced air outlet is toward the airflow direction in the pipeline.

2. The pipeline type jet drainage negative pressure dust suction device according to claim 1, characterized in that: The air passage cavity is an annular cavity arranged along the circumference of the pipeline, and the induced air outlets are multiple and arranged in a ring shape.

3. The pipeline type jet drainage negative pressure dust suction device according to claim 1, characterized in that: The induced air outlet is close to the outer wall of the pipeline.

4. The pipeline type jet drainage negative pressure dust suction device according to claim 1, characterized in that: The jet drainage component is a cylindrical body, and the pipeline is connected through the cylindrical body.

5. The pipeline type jet drainage negative pressure dust suction device according to claim 4, characterized in that: The cylindrical body comprises an outer cylinder and an inner cylinder, and the induced air outlet is arranged on the end wall of the cylindrical body and is located between the outer cylinder and the inner cylinder.

6. The pipeline type jet drainage negative pressure dust suction device according to claim 5, characterized in that: Both ends of the cylindrical body are connected to the pipeline through flanges, and the induced air outlet is located on the flange and inside the bolt holes of the flange.

7. The pipeline type jet drainage negative pressure dust suction device according to claim 5, characterized in that: The outer cylinder at one end of the cylindrical body is provided with the annular air passage cavity, the induced air inlet is provided on the outer wall of the air passage cavity, and the induced air outlet is provided at the other end of the cylindrical body.

8. The pipeline type jet drainage negative pressure dust suction device according to claim 1, characterized in that: The number of the jet drainage components is two or more and they are evenly arranged along the length direction of the pipeline.

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