A suspended vacuum pump heat dissipation air intake filter group

Abstract

The utility model belongs to vacuum pump air intake auxiliary equipment technical field relates to a kind of suspended type vacuum pump heat dissipation air intake filter groups, including vacuum pump air intake end through pipeline connection air intake filter assembly, air intake filter assembly includes stainless steel external thread filter screen and slow flow filter inner tube, stainless steel external thread filter screen detachably installed on the pump box convex block, slow flow filter inner tube flange connects pump box, stainless steel external thread filter screen is set on slow flow filter inner tube.The utility model adopts the multistage filtration mode of stainless steel external thread filter screen and slow flow filter inner tube combination, the effective interception of different particle size particles is realized;And it can be quickly and conveniently disassembled and installed, without complex tool and tedious operation process;Slow flow filter inner tube can also carry out slow flow processing to the incoming airflow, so that airflow velocity gradually reduces, reduces the impact and abrasion of airflow to pump internal components, while also conducive to the full settlement and filtration of particles in filter inner tube, further improves the filtration effect.

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum pump intake auxiliary equipment, and in particular to a suspended vacuum pump heat dissipation intake filter group. Background Technology

[0002] In industrial production environments, the gases processed by vacuum pumps are often not pure gases, but mixtures containing various particles. When the vacuum pump is performing heat dissipation and gas intake operations, these particle mixtures are drawn into the vacuum pump along with the gas. After the gas containing the particle mixture enters the vacuum pump, due to the characteristics of the internal structure of the vacuum pump, the particles will gradually accumulate in the compression chamber. Its internal space is relatively limited and the airflow movement is complex. Under the action of the airflow, the particles will be deposited in various parts of the compression chamber, especially in some airflow dead corners and structural turning points, where particles are more likely to accumulate.

[0003] Minor issues may affect the vacuum level of the vortex vacuum pump, while severe issues may lead to pump body wear, decreased bearing performance, and serious impact on the vacuum pump's performance. To address the problem of particles in the vacuum pump's heat dissipation intake, some filtration devices exist on the market. However, while some simple filters can intercept larger particles, they are not effective at filtering small particles and cannot effectively prevent them from entering the vacuum pump. Moreover, most filtration devices have complex structures and are inconvenient to maintain after adsorbing impurities. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a suspended vacuum pump heat dissipation and air intake filter assembly.

[0005] The technical solution of this utility model is achieved through the following scheme: a suspended vacuum pump heat dissipation air intake filter assembly, including a pump box, a vacuum pump and an air intake filter assembly. The vacuum pump is installed inside the pump box. The air intake end of the vacuum pump is connected to the air intake filter assembly through a pipe. The air intake filter assembly includes a stainless steel external wire filter screen and a slow-flow filter inner cylinder. The stainless steel external wire filter screen is detachably installed on the protrusion of the pump box. The slow-flow filter inner cylinder is flanged and connected to the pump box. The stainless steel external wire filter screen is sleeved on the slow-flow filter inner cylinder.

[0006] Through the above technical solutions, a multi-stage filtration method combining a stainless steel external wire filter and a slow-flow filter inner cylinder is adopted to effectively intercept particles of different sizes, ensuring the cleanliness of the internal environment of the vacuum pump. This effectively avoids problems such as decreased vacuum, pump wear, and reduced bearing performance caused by particle accumulation, thus extending the service life of the vacuum pump. The entire inlet filter assembly can be quickly and easily disassembled and installed when maintenance is required, without complicated tools and cumbersome operating procedures, greatly saving maintenance time and labor costs. The slow-flow filter inner cylinder can also slow down the incoming airflow, gradually reducing the airflow velocity and making the distribution more uniform. This reduces the impact and wear of the airflow on the pump's internal components, while also facilitating the full settling and filtration of particles within the filter inner cylinder, further improving the filtration effect.

[0007] Preferably, the slow-flow filter inner cylinder includes a filter inner cylinder, a non-woven filter bag, and a slow-flow cone. The non-woven filter bag is screwed to the flange end of the filter inner cylinder, and a slow-flow cone is fixedly installed at one end of the filter inner cylinder away from the flange end. The slow-flow cone is located in the inner cavity of the filter inner cylinder.

[0008] Preferably, the outer surface of the filter inner cylinder is covered with primary filter cotton.

[0009] Preferably, the slow-flow cone is located at the axis of the inner cavity of the filter inner cylinder, and the cone head of the slow-flow cone faces the non-woven filter bag.

[0010] Preferably, the filter inner cylinder has several air inlets arranged in a ring array.

[0011] Preferably, the primary filter cotton is located between the stainless steel outer wire filter screen and the inner filter cylinder, and the primary filter cotton is fixed to the outer surface of the inner filter cylinder by several clamps.

[0012] In summary, this utility model has the following beneficial effects: 1. This utility model employs a multi-stage filtration method combining a stainless steel external wire filter screen and a slow-flow filter inner cylinder to effectively intercept particles of different sizes, ensuring a clean internal environment for the vacuum pump. This effectively avoids problems such as decreased vacuum, pump wear, and reduced bearing performance caused by particle accumulation, thus extending the service life of the vacuum pump. The entire inlet filter assembly can be quickly and easily disassembled and installed when maintenance is required, without the need for complex tools and cumbersome operating procedures, greatly saving maintenance time and labor costs. The slow-flow filter inner cylinder also slows down the incoming airflow, gradually reducing the airflow velocity and making the distribution more uniform. This reduces the impact and wear of the airflow on the pump's internal components and also facilitates the full settling and filtration of particles within the filter inner cylinder, further improving the filtration effect.

[0013] 2. The primary filter cotton is used to filter and initially slow down the flow of the incoming gas, reducing the burden on subsequent filter components. It is used in conjunction with a non-woven filter bag to further filter out fine particles, improve the filtration accuracy, and ensure that the gas entering the vacuum pump meets the high cleanliness requirements. The flow cone guides the direction of airflow and further slows down the airflow speed, avoiding direct airflow impact and reducing the generation of airflow turbulence and eddies.

[0014] 3. The annular array of air inlets makes the gas distribution into the filter inner cylinder more uniform. The gas enters from air inlets in different directions, and together with the flow-damping cone, it avoids the formation of local airflow concentration or dead zones. This allows the particles in the gas to have more time to contact the filter medium in the filter inner cylinder, increasing the probability of particles being intercepted and adsorbed. The clamp fixing method is firm and reliable, ensuring that the primary filter cotton will not loosen or shift under the pressure generated by the gas flow. At the same time, it also facilitates the installation and removal of the primary filter cotton. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembly structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a front-view diagram of the disassembly of this utility model; Figure 4 This is a three-dimensional structural diagram of the disassembled part of this utility model; Figure 5 This is a three-dimensional structural diagram of the filter inner cylinder of this utility model; Figure 6 This is a schematic diagram of the assembly structure of the filter inner cylinder of this utility model.

[0016] Explanation of reference numerals in the attached diagram: 1. Pump box; 2. Stainless steel external wire filter screen; 3. Slow-flow filter inner cylinder; 31. Filter inner cylinder; 32. Non-woven filter bag; 33. Slow-flow cone; 4. Clamp; 5. Primary filter cotton; 6. Air inlet. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] A suspended vacuum pump cooling intake filter assembly, such as Figures 1-6As shown, the system includes a pump housing 1, a vacuum pump, and an inlet filter assembly. The vacuum pump is housed within the pump housing 1, and its inlet is connected to the inlet filter assembly via a pipe. The inlet filter assembly includes a stainless steel external wire filter screen 2 and a slow-flow filter inner cylinder 3. The stainless steel external wire filter screen 2 is detachably mounted on a protruding block in the pump housing 1. The slow-flow filter inner cylinder 3 is flange-connected to the pump housing 1, and the stainless steel external wire filter screen 2 is fitted onto it. The stainless steel external wire filter screen 2 is screwed into the protruding block in the pump housing 1, making disassembly and installation very convenient. The protruding block in the pump housing 1 is cylindrical and facilitates slow-flow... The flange of the filter inner cylinder 3 is installed on the other side of the protruding block of the pump box 1. The slow-flow filter inner cylinder 3 is a convex cylinder in shape. Its cylindrical part is inserted into the inner cavity of the protruding block of the pump box 1. The slow-flow filter inner cylinder 3 protrudes inside the protruding block of the pump box 1 and is then covered and fitted by the stainless steel external wire filter screen 2 and the protruding block of the pump box 1. The various components of the air intake filter assembly are relatively independent. The stainless steel external wire filter screen 2 and the slow-flow filter inner cylinder 3 can be maintained and replaced separately. If a component is damaged or the filtration effect decreases, only the corresponding component needs to be replaced, without replacing the entire air intake filter assembly.

[0020] The flange connection ensures a stable connection between the slow-flow filter inner cylinder 3 and the pump box 1. During equipment operation, even if affected by air flow and vibration, it will not easily loosen or fall off, ensuring the structural stability of the entire air intake filter assembly. The vacuum pump inlet pipe is installed at the flange end of the slow-flow filter inner cylinder 3 through a flange and is connected to the flange of the pump box 1.

[0021] The stainless steel external wire filter screen 2 has a 360° ventilation and air intake on its annular side, allowing air to be drawn in from different directions. After the air enters, it forms a more uniform airflow distribution outside the slow-flow filter inner cylinder 3. The large contact area with the slow-flow filter inner cylinder 3 filters and slows the airflow comprehensively. The uniform airflow helps to reduce turbulence when the air enters the vacuum pump, and at the same time, it can make the various components inside the vacuum pump more evenly stressed, reducing wear and vibration caused by uneven airflow, and further improving the operational stability and reliability of the equipment.

[0022] The slow-flow filter inner cylinder 3 includes a filter inner cylinder 31, a non-woven filter bag 32, and a slow-flow cone 33. The non-woven filter bag 32 is screwed to the flange end of the filter inner cylinder 31. The slow-flow cone 33 is fixedly installed at the end of the filter inner cylinder 31 away from the flange end. The slow-flow cone 33 is located in the inner cavity of the filter inner cylinder 31. The end of the non-woven filter bag 32 is provided with a threaded frame. The inner cavity of the filter inner cylinder 31 near the flange end is provided with a threaded channel that matches the threaded frame of the non-woven filter bag 32. The two are screwed together. The combination of the non-woven filter bag 32 and the filter inner cylinder 31 further increases the filtration area and the filtration system. The larger filtration area allows the gas to have more contact opportunities when passing through the filter components, and impurities are more easily intercepted and adsorbed. At the same time, the non-woven filter bag 32 can be disassembled and replaced periodically to ensure the continuous and stable filtration effect. The end of the filter inner cylinder 31 away from the flange end is in a blind state, providing an installation surface for the slow-flow cone 33. The filter inner cylinder 31 and the slow-flow cone 33 are integrally formed.

[0023] The slow-flow cone 33 is located at the axis of the inner cavity of the filter inner cylinder 31. The cone head of the slow-flow cone 33 faces the non-woven filter bag 32. After the gas enters the filter inner cylinder 31 from the multiple air inlets 6 in the ring, it directly impacts the slow-flow cone 33. The slow-flow cone 33 guides the airflow direction and slows down the flow by its own structure, avoiding disordered flow and backflow of air in the filter inner cylinder 31, and ensuring that the airflow can pass smoothly through the subsequent filter components.

[0024] The outer surface of the filter inner cylinder 31 is covered with a primary filter cotton 5. The primary filter cotton 5 is located between the stainless steel outer wire filter screen 2 and the filter inner cylinder 31. The primary filter cotton 5 is fixed to the outer surface of the filter inner cylinder 31 by several clamps 4. The clamps 4 are preferably made of stainless steel. The primary filter cotton 5 is tightly bound to the annular surface of the filter inner cylinder 31. The primary filter cotton 5 itself can initially slow down the airflow. The cotton structure of the primary filter cotton 5 can reduce the speed of the high-speed airflow, so that the airflow passes through the subsequent multiple air inlets 6 more smoothly and evenly.

[0025] The filter inner cylinder 31 has several air inlets 6 arranged in a ring array. The air inlets 6 are square holes with a large filtration area and a large flow rate. When the air outside the filter inner cylinder 31 flows through it, the air comes into contact with the primary filter cotton 5 over a large area, which increases the filtration effect. The primary filter cotton 5 works together to alleviate the impact and turbulence caused by sudden changes in flow velocity.

[0026] Working principle: When the vacuum pump starts to draw in air, the outside air is drawn into the air intake filter component under negative pressure. The air flows through the stainless steel external wire filter screen 2, which effectively intercepts and filters out large particulate impurities carried in the air due to its specific pore size and structure. After being initially filtered by the stainless steel external wire filter 2, the airflow continues to flow forward and impacts the primary filter cotton 5. The primary filter cotton 5 further captures and filters out fine impurity particles in the air. At the same time, the primary filter cotton 5 also slows down the airflow initially, and then flows smoothly through multiple air inlets 6. Multiple air inlets 6 gather the airflow from multiple directions, causing the dispersed airflow to gradually converge and increasing the concentration of the airflow. The airflow entering the filter inner cylinder 31 then impacts the flow-slowing cone 33, further reducing the airflow velocity. At the same time, the flow-slowing cone 33 can quickly and effectively guide the airflow downward. After final filtration by the non-woven filter bag 32, the clean airflow enters the vacuum pump, providing a high-quality air source for the normal operation of the vacuum pump and ensuring the stable performance and service life of the vacuum pump.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A suspended vacuum pump heat dissipation air intake filter assembly, characterized in that: The system includes a pump housing (1), a vacuum pump, and an air intake filter assembly. The pump housing (1) contains a vacuum pump, and the air intake end of the vacuum pump is connected to the air intake filter assembly via a pipe. The air intake filter assembly includes a stainless steel external wire filter screen (2) and a slow-flow filter inner cylinder (3). The stainless steel external wire filter screen (2) is detachably installed on the protrusion of the pump housing (1). The slow-flow filter inner cylinder (3) is flange-connected to the pump housing (1), and the stainless steel external wire filter screen (2) is sleeved on the slow-flow filter inner cylinder (3).

2. The suspended vacuum pump heat dissipation and air intake filter assembly according to claim 1, characterized in that: The slow-flow filter inner cylinder (3) includes a filter inner cylinder (31), a non-woven filter bag (32), and a slow-flow cone (33). The non-woven filter bag (32) is screwed to the flange end of the filter inner cylinder (31). The slow-flow cone (33) is fixedly installed at one end of the filter inner cylinder (31) away from the flange end. The slow-flow cone (33) is located in the inner cavity of the filter inner cylinder (31).

3. The suspended vacuum pump heat dissipation and air intake filter assembly according to claim 2, characterized in that: The outer surface of the filter inner cylinder (31) is covered with primary filter cotton (5).

4. The suspended vacuum pump heat dissipation and air intake filter assembly according to claim 2, characterized in that: The slow-flow cone (33) is located at the axis of the inner cavity of the filter inner cylinder (31), and the cone head of the slow-flow cone (33) is directly opposite the non-woven filter bag (32).

5. The suspended vacuum pump heat dissipation and air intake filter assembly according to claim 3, characterized in that: The filter inner cylinder (31) has several air inlets (6) arranged in a ring array.

6. The suspended vacuum pump heat dissipation and air intake filter assembly according to claim 5, characterized in that: The primary filter cotton (5) is located between the stainless steel outer wire filter mesh (2) and the filter inner cylinder (31). The primary filter cotton (5) is fixed to the outer surface of the filter inner cylinder (31) by several clamps (4).

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