Flow channel structure of vacuum pump exhaust filter

Abstract

The utility model provides a flow channel structure of vacuum pump exhaust filter, including shell and a plurality of filter core in the shell, the bottom of shell is provided with shell recess, the top surface of shell recess is inclined, the bottom of shell is fixed with base, the shell bottom and base are sealed through seal ring, the shell recess is equipped with the shell recess, the top surface of shell recess is equipped with the seal ring, and the seal ring is equipped with the seal ring. The shell is provided with a groove, so that the groove of the shell forms an interlayer in a sealed state, the shell is provided with a water inlet and a water outlet which are communicated with the interlayer, and a bent flow channel is arranged in the interlayer. Compared with the prior art, the runner structure of the vacuum pump exhaust filter has the advantages that the water inlet interlayer is arranged at the bottom of the shell, and the runner is arranged in the interlayer, so that the cooling of the whole shell, the filter element in the shell and exhaust airflow is realized, the filtering effect of the filter element is ensured, and the service life of the filter element is ensured; the flow channel can be used for cooling and heating oil, and when condensable gas is extracted, in order to prevent gas condensation from polluting working oil, the oil generally needs to be heated.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum pump technology and relates to the flow channel structure of a vacuum pump exhaust filter. Background Technology

[0002] Vacuum pumps require lubricating oil during operation. The oil provides both lubrication and sealing, playing a crucial role in improving the vacuum level. However, as the pump temperature rises and operation continues, the lubricating oil gradually vaporizes and liquefies, producing oil fumes and liquids. These contaminated substances are discharged with the exhaust gas, polluting indoor air. Current technologies typically incorporate filters to remove these oily substances and fumes. Since these substances are often small particles or lack a fixed shape, filtration relies primarily on adsorption rather than blocking, as seen in patent application number "201520764750.6" entitled "Vacuum Pump Exhaust Port Filter Element." While these existing technologies only provide adsorption filtration, the high temperature of the exhaust gas can easily damage the filter element, resulting in poor filtration efficiency and a short lifespan. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the prior art by providing a flow channel structure for a vacuum pump exhaust filter that can cool the exhaust gas flow.

[0004] The objective of this utility model can be achieved through the following technical solution: a flow channel structure for a vacuum pump exhaust filter, comprising a housing and multiple filter elements located within the housing, a housing groove formed at the bottom of the housing, the top surface of the housing groove being inclined, a base fixed at the bottom of the housing, and a sealing ring sealing the bottom of the housing and the base, thereby forming a sealed partition layer in the housing groove, an inlet and an outlet communicating with the partition layer on the housing, and a curved flow channel provided within the partition layer.

[0005] In the flow channel structure of the vacuum pump exhaust filter described above, several first baffles and several second baffles are respectively provided on the opposite side walls of the housing groove. The first baffles and the second baffles are arranged in an inclined direction perpendicular to the top surface of the housing groove. The first baffles and the second baffles are parallel to each other and evenly distributed in the housing groove. There are flow gaps between the ends of the first baffles and the ends of the second baffles and the groove walls of the housing groove. The first baffles and the second baffles are arranged opposite to each other, so that the first baffles and the second baffles form a curved flow channel in the partition layer through which water flows.

[0006] In the flow channel structure of the vacuum pump exhaust filter described above, the height of the outlet is higher than the height of the inlet.

[0007] In the flow channel structure of the vacuum pump exhaust filter described above, four oil collection grooves are formed on the base.

[0008] Compared with existing technologies, the flow channel structure of this vacuum pump exhaust filter achieves cooling of the entire housing, the filter element, and the exhaust airflow by setting a water inlet baffle at the bottom of the housing and providing a flow channel within the baffle. This ensures the filtration effect and service life of the filter element. The first and second baffles are arranged opposite to each other, forming a curved flow channel within the water-conducting baffle, avoiding localized stagnant water and increasing the heat exchange area. The top surface of the housing groove is inclined, i.e., the top surface of the water baffle is inclined, and the first and second baffles are arranged vertically. The design, with its angled orientation relative to the top surface of the recessed housing, allows all gas within the partition to escape, preventing localized bulging at the top of the water partition and effectively ensuring heat dissipation. The outlet is higher than the inlet, allowing water to enter from a lower position and exit from a higher position, preventing air residue at the top of the flow channel and ensuring effective heat dissipation. The flow channel can be used for cooling or heating oil. When removing condensable gases, heating is typically required to prevent condensation and contamination of the working oil. An oil collection trough on the base prevents oil leakage and keeps the surrounding area clean. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of the flow channel structure of the vacuum pump exhaust filter hidden behind the base.

[0010] Figure 2 This is a three-dimensional structural diagram of the flow channel structure of the exhaust filter of this vacuum pump, hidden behind the air intake cover.

[0011] In the diagram, 1 is the housing; 101 is the exhaust port; 105 is the housing groove; 106 is the first partition; 107 is the water inlet; 108 is the water outlet; 112 is the second partition; 3 is the filter element; 8 is the air inlet cover; 81 is the air inlet; 9 is the base; and 91 is the oil collection groove. Detailed Implementation

[0012] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0013] like Figure 1 and Figure 2As shown, the flow channel structure of this vacuum pump exhaust filter includes a housing 1 and multiple filter elements 3 located within the housing 1. An air inlet cover 8 is provided at the end of the housing 1, with an air inlet 81 formed on the air inlet cover 8. An exhaust port 101 is formed on the top surface of the housing 1. A housing groove 105 is formed at the bottom of the housing 1, with the top surface of the housing groove 105 inclined. A base 9 is fixed to the bottom of the housing 1, and a sealing ring seals the bottom of the housing 1 and the base 9, forming a sealed partition in the housing groove 105. An inlet 107 and an outlet 108 communicating with the partition are formed on the housing 1. A curved flow channel is provided within the partition.

[0014] In the above technical solutions: such as Figure 1 As shown, several first partitions 106 and several second partitions 112 are respectively provided on the opposite side walls of the recess 105. The first partitions 106 and second partitions 112 are arranged in an inclined direction perpendicular to the top surface of the recess 105. The first partitions 106 and second partitions 112 are parallel to each other and evenly distributed in the recess 105. There are flow gaps between the ends of the first partitions 106 and the ends of the second partitions 112 and the walls of the recess 105. The first partitions 106 and second partitions 112 are arranged opposite to each other, forming a curved flow channel in the water-conducting partition, avoiding local stagnant water, and also increasing the heat exchange area. The top surface of the housing groove 105 is inclined, which means the top surface of the water separator is inclined. The first partition 106 and the second partition 112 are set in a direction perpendicular to the top surface of the housing groove 105. This allows all the gas in the separator to be discharged, avoids local bulging of the top of the water separator, and effectively ensures the heat dissipation effect of the top surface of the separator.

[0015] In the above technical solution, the height of the outlet 108 is higher than the height of the inlet 107, allowing water to enter from a lower position and exit from a higher position. This avoids air residue at the top of the flow channel and ensures an effective heat dissipation area. The flow channel can be used for cooling or heating oil. When removing condensable gases, the oil usually needs to be heated to prevent gas condensation from contaminating the working oil.

[0016] In the above technical solution: four oil collection grooves 91 are made on the base 9. The oil collection grooves 91 prevent oil from flowing out and keep the surrounding land clean.

[0017] The flow channel structure of this vacuum pump exhaust filter achieves cooling of the entire housing 1, the filter element 3 within the housing 1, and the exhaust airflow by setting a water inlet partition at the bottom of the partition and having a flow channel within the partition. This ensures the filtration effect and service life of the filter element 3. The first partition 106 and the second partition 112 are arranged opposite to each other, forming a curved flow channel within the water-conducting partition to avoid local stagnant water and increase the heat exchange area. The top surface of the housing groove 105 is inclined, i.e., the top surface of the water partition is inclined. The first partition 106 and the second partition 112... 2. The inclination direction along the top surface perpendicular to the groove 105 of the housing allows all the gas in the partition to be discharged, preventing local bulging of the top of the water partition and effectively ensuring the heat dissipation effect of the top surface of the partition; the height of the outlet 108 is higher than the height of the inlet 107, with water entering at a low position and exiting at a high position, avoiding air residue at the top of the flow channel and ensuring the effective heat dissipation area of ​​the flow channel; the flow channel can be used for cooling or heating oil. When removing condensable gases, the oil usually needs to be heated to avoid gas condensation contaminating the working oil; the oil collection groove 91 on the base 9 prevents oil from flowing out and keeps the surrounding area clean.

[0018] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0019] Although this document frequently uses terms such as housing 1, exhaust port 101, housing groove 105, first partition 106, water inlet 107, water outlet 108, second partition 112, filter element 3, air inlet cover 8, air inlet 81, base 9, and oil collection groove 91, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

[0020] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A flow channel structure for a vacuum pump exhaust filter, comprising a housing (1) and a plurality of filter elements (3) located within the housing (1), characterized in that... The bottom of the housing (1) is provided with a housing groove (105), the top surface of the housing groove (105) is inclined, the bottom of the housing (1) is fixed with a base (9), the bottom of the housing (1) and the base (9) are sealed by a sealing ring, so that the housing groove (105) forms a sealed partition. The housing (1) is provided with an inlet (107) and an outlet (108) communicating with the partition. The partition is provided with a curved flow channel.

2. The flow channel structure of the vacuum pump exhaust filter according to claim 1, characterized in that... On the opposite sides of the groove (105) of the housing, there are a plurality of first partitions (106) and a plurality of second partitions (112). The first partitions (106) and the second partitions (112) are arranged in an inclined direction perpendicular to the top surface of the groove (105). The first partitions (106) and the second partitions (112) are parallel to each other and evenly arranged in the groove (105). There are flow gaps between the ends of the first partitions (106) and the ends of the second partitions (112) and the groove walls of the groove (105). The first partitions (106) and the second partitions (112) are arranged opposite to each other. The first partitions (106) and the second partitions (112) make the water-passing layer form a curved flow channel.

3. The flow channel structure of the vacuum pump exhaust filter according to claim 1, characterized in that... The height of the outlet (108) is higher than the height of the inlet (107).

4. The flow channel structure of the vacuum pump exhaust filter according to claim 1, characterized in that... The base (9) has four oil collection grooves (91).

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