Vacuum pump air filter assembly convenient to drain water

Abstract

The utility model discloses a vacuum pump air filter assembly facilitating drainage, and relates to the technical field of vacuum pumps. The device comprises a filter cartridge, a floating ball type mechanical drainer, a liquid collection bottle, a conical hopper and a liquid collection tank, a stainless steel baffle plate which is obliquely distributed is fixed on the inner wall of the filter cartridge, a filter element is arranged in the filter cartridge, and a bent liquid discharge pipe is fixed at the lower part of the peripheral side of the filter cartridge in a penetrating manner; a floating ball type mechanical drainer is fixed to the bottom end of the liquid discharging pipe in a threaded and screwed mode, and a liquid collecting bottle is fixed to the bottom end of the floating ball type mechanical drainer in a screwed mode; a conical hopper is also arranged outside the filter cartridge, and a liquid collecting tank is screwed and fixed at the bottom of the conical hopper. Through the arrangement of the filter cartridge, the floating ball type mechanical drainer, the filter element, the stainless steel baffle plate, the conical hopper, the liquid collection bottle and the liquid collection tank, the problems that moisture in air filtration cannot be timely and conveniently discharged, the filtration effect of vacuum pump air filtration is insufficient, and dust and moisture in air in a container cannot be fully filtered out are solved.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum pump related technology, and in particular relates to a vacuum pump air filter assembly that facilitates drainage. Background Technology

[0002] A vacuum pump is a device or equipment that uses mechanical, physical, chemical, or physicochemical methods to evacuate a container and create a vacuum. A vacuum pump is a rotary variable displacement pump that requires a backing pump to operate. It has a high pumping speed over a wide pressure range and is not sensitive to dust and water vapor in the evacuated gas. It is widely used in metallurgy, chemical, food, and electronic coating industries. When using a vacuum pump to evacuate a container, an air filter must be installed at the pump's suction end to prevent dust, moisture, etc., from entering the pump and damaging it. However, air filters still have the following drawbacks in practical use:

[0003] After a vacuum pump draws a vacuum into a container, it will filter out a large amount of water. If this water is not drained in time, it will accumulate inside the filter and may even cause the filter element to rot, reducing the service life of the filter. Therefore, it is necessary to drain the water filtered out of the air filter in a timely and convenient manner.

[0004] Secondly, a single air filter has only one filter element, which cannot completely filter out dust and moisture in the air during the vacuuming process. The filtration is not sufficient, and moisture can easily enter the vacuum pump. Utility Model Content

[0005] The purpose of this utility model is to provide a vacuum pump air filter assembly that facilitates drainage. By setting up a filter cylinder, a float-type mechanical drainer, a filter element, a stainless steel baffle, a cone, a collection bottle, and a collection tank, it solves the problems of water not being able to be discharged from the air filter in a timely and convenient manner, insufficient filtration effect of the vacuum pump air filter, and the inability to fully filter out dust and moisture in the air inside the container.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a vacuum pump air filter assembly for convenient drainage, comprising a filter cylinder, a float-type mechanical drainer, a collection bottle, a conical hopper, and a collection tank. The inner wall of the filter cylinder is fixed with inclined stainless steel baffles. A filter element is installed inside the filter cylinder, and a vacuum tube is fixed through the bottom of the filter cylinder. The lower part of the filter element is screwed to the vacuum tube. A curved drain pipe is fixed through the lower periphery of the filter cylinder, and a float-type mechanical drainer is threaded to the bottom end of the drain pipe. The bottom end of the float-type mechanical drainer is screwed to the collection bottle.

[0008] The filter cartridge is also provided with a cone-shaped hopper, and a liquid collection tank is screwed and fixed to the bottom of the cone-shaped hopper.

[0009] Furthermore, the outer wall of the vacuum tube is provided with external threads, the inner wall of the vacuum tube is provided with internal threads, the lower end cap of the filter element is provided with a threaded groove, and the filter element is screwed onto the outside of the vacuum tube through the engagement of the threaded groove and the external threads.

[0010] Furthermore, a cap is screwed and fixed to the upper end of the filter cartridge, the upper end of the filter element is higher than the upper end of the filter cartridge, and the upper end of the filter element abuts against the inner top surface of the cap.

[0011] Furthermore, a volute is fixed to the upper end of the cone, and an air pipe is fixed through the top of the volute, while an air inlet is fixed through the periphery of the volute.

[0012] Furthermore, the filter cartridge has a through opening on its periphery, and an air inlet channel is fixed outside the opening. The end of the air inlet channel away from the filter cartridge is fixedly connected to an air pipe in a through manner.

[0013] Furthermore, the stainless steel baffle is located above the drain pipe, and the height of the stainless steel baffle is less than the height of the filter element, and the height of the inlet is less than the height of the stainless steel baffle.

[0014] Furthermore, the bottoms of the liquid collection tank and the liquid collection bottle are flush.

[0015] This utility model has the following beneficial effects:

[0016] This invention solves the problem of timely and convenient drainage of water from air filters by incorporating a filter cartridge and a float-type mechanical drainer. A filter element is installed inside the filter cartridge, and the water filtered out by the filter element is located inside the filter cartridge. The filtered water is drained through the drain pipe and injected into the float-type mechanical drainer. When the float in the float-type mechanical drainer rises, it indicates that the water level is high enough, and the water in the float-type mechanical drainer is discharged into a collection bottle for collection. This automatic drainage eliminates the need for manual timed drainage; water is drained whenever the water level is sufficient, ensuring that no water remains in the filter cartridge and guaranteeing the normal operation of the filter.

[0017] This invention solves the problem of insufficient filtration effect of vacuum pump air filters and the inability to fully filter out dust and moisture in the air inside the container by setting up a filter cylinder, filter element, stainless steel baffle, cone, collection bottle, and collection tank. First, when the vacuum pump draws a vacuum, air enters from the air inlet, enters the volute, and then enters the cone, forming a spiral air channel. This causes the gas to rotate and generate centrifugal force, separating large droplets and dust in advance and discharging them into the collection tank. Subsequently, the gas turns at the bottom of the cone, forming an internal vortex, generating an upward airflow that exits from the air pipe and enters the filter cylinder along the air inlet channel. There, it contacts the stainless steel baffle, intercepting the mist-like moisture. Finally, it is filtered by the filter element, and the filtered moisture drips into the filter cylinder and is then discharged. In the entire process, the moisture in the air is filtered three times, effectively filtering out moisture and greatly enhancing the filtration effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 A perspective view of a vacuum pump air filter assembly for convenient drainage;

[0020] Figure 2 A cross-sectional view of a vacuum pump air filter assembly for convenient drainage;

[0021] Figure 3 This is a sectional disassembly view of the filter cartridge, filter element, and cartridge cover.

[0022] Figure 4 This is a top view of the filter cylinder;

[0023] Figure 5 This is a bottom view of the filter element;

[0024] Figure 6 This is a bottom view of the cylinder cover.

[0025] Figure label:

[0026] 1. Filter cartridge; 101. Cylinder cover; 102. Air inlet channel; 103. Drain pipe; 104. Filter element; 1041. Threaded groove; 105. Vacuum tube; 1051. External thread; 1052. Internal thread; 106. Stainless steel baffle; 107. Port; 2. Float-type mechanical drainer; 3. Liquid collection bottle; 4. Conical hopper; 401. Volute; 402. Air inlet; 403. Air pipe; 5. Liquid collection tank. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] Please see Figure 1-6As shown, this utility model is a vacuum pump air filter assembly for convenient drainage, including a filter cylinder 1, a float-type mechanical drainer 2, a collection bottle 3, a conical hopper 4, and a collection tank 5. The inner wall of the filter cylinder 1 is fixed with inclined stainless steel baffles 106. The filter cylinder 1 is equipped with a filter element 104. A vacuum tube 105 is fixed through the bottom of the filter cylinder 1. The lower part of the filter element 104 is screwed and fixed to the vacuum tube 105. A curved drain pipe 103 is fixed through the lower part of the periphery of the filter cylinder 1. The bottom end of the drain pipe 103 is threaded and fixed with the float-type mechanical drainer 2. The bottom end of the float-type mechanical drainer 2 is screwed and fixed with the collection bottle 3.

[0029] After air enters the filter cartridge 1, it first comes into contact with the stainless steel baffle 106, which intercepts the mist-like water and forms small droplets on the stainless steel baffle 106. As the air falls due to gravity, it is then filtered by the filter element 104. The filtered water is discharged from the drain pipe 103 and enters the float-type mechanical drainer 2. When the float in the float-type mechanical drainer 2 floats up, it means that the float-type mechanical drainer 2 has been filled to a certain extent by water. At this time, the water naturally drains from the float-type mechanical drainer 2 into the collection bottle 3. After a certain amount of water has been drained, the float falls down, and the connection between the collection bottle 3 and the float-type mechanical drainer 2 is sealed, realizing automatic drainage.

[0030] The vacuum tube 105 is connected to the air inlet of the vacuum pump;

[0031] The filter cartridge 1 is also provided with a cone 4, and a liquid collection tank 5 is screwed and fixed to the bottom of the cone 4; a volute 401 is fixed to the upper end of the cone 4, and an air pipe 403 is fixed through the top of the volute 401, and an air inlet 402 is fixed through the periphery of the volute 401.

[0032] The conical bucket 4 is used for spiral air intake in advance. Air enters from the air inlet 402, enters the volute 401 and then enters the conical bucket 4, forming a spiral air duct. This causes the gas to rotate and generate centrifugal force, separating large droplets and dust in advance and discharging them into the liquid collection tank 5. Subsequently, the gas turns at the bottom of the conical bucket 4, forming an internal vortex, and generating an upward airflow that is discharged from the air pipe 403.

[0033] The outer wall of the vacuum tube 105 is provided with an external thread 1051, the inner wall of the vacuum tube 105 is provided with an internal thread 1052, the lower end cap of the filter element 104 is provided with a threaded groove 1041, and the filter element 104 is screwed onto the outside of the vacuum tube 105 through the engagement of the threaded groove 1041 and the external thread 1051.

[0034] When installing the filter element 104, align the threaded groove 1041 inside its lower end cap with the vacuum tube 105, and screw it into the external thread 1051 on the outer wall of the vacuum tube 105. The vacuum tube 105 is then installed on the air inlet of the vacuum pump through the internal thread 1052 on its inner wall.

[0035] A cover 101 is screwed onto the upper end of the filter cartridge 1. The upper end of the filter element 104 is higher than the upper end of the filter cartridge 1, and the upper end of the filter element 104 abuts against the inner top surface of the cover 101.

[0036] After the filter element 104 is installed, screw the cap 101 onto the top of the filter cylinder 1 until it can no longer be rotated. At this time, the upper end of the filter element 104 abuts against the inner top surface of the cap 101.

[0037] A through-hole 107 is provided on the periphery of the filter cartridge 1, and an air inlet channel 102 is fixed outside the through-hole 107. The end of the air inlet channel 102 away from the filter cartridge 1 is fixedly connected to the air pipe 403 in a through manner.

[0038] An air inlet channel 102 is installed at the inlet 107. The air processed in the cone 4 enters the air inlet channel 102 through the air pipe 403 and then enters the filter cartridge 1.

[0039] The stainless steel baffle 106 is located above the drain pipe 103, and the height of the stainless steel baffle 106 is less than the height of the filter element 104, and the height of the port 107 is less than the height of the stainless steel baffle 106; the bottoms of the collection tank 5 and the collection bottle 3 are flush.

[0040] The specific working principle of this utility model is as follows: First, install the filter element 104, align the threaded groove 1041 in the lower end cap of the filter element 104 with the vacuum tube 105, and screw it into the external thread 1051 on the outer wall of the vacuum tube 105. Then screw the cylinder cap 101 to the top of the filter cylinder 1 until it can no longer be rotated. At this time, the upper end of the filter element 104 abuts against the inner top surface of the cylinder cap 101. Finally, the vacuum tube 105 is installed on the air inlet of the vacuum pump through the internal thread 1052 on its inner wall.

[0041] When the vacuum pump is operating, air enters through the air inlet 402, then enters the volute 401 and then the conical hopper 4, forming a spiral air duct. This causes the gas to rotate and generate centrifugal force, separating large droplets and dust in advance, which are then discharged into the collection tank 5. Subsequently, the gas turns at the bottom of the conical hopper 4, forming an internal vortex and generating an upward airflow until it enters the air inlet channel 102 through the air pipe 403, and then enters the filter cartridge 1. It first contacts the stainless steel baffle 106, which intercepts the mist-like water, forming small droplets on the stainless steel baffle 106. As the air falls due to gravity, it is further filtered by the filter element 104. The filtered water is discharged from the drain pipe 103 and enters the float-type mechanical drainer 2. When the float in the float-type mechanical drainer 2 rises, it indicates that the water level is high enough. The water in the float-type mechanical drainer 2 is discharged into the collection bottle 3 for collection, thus automatically draining the water.

[0042] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A vacuum pump air filter assembly with convenient drainage, comprising a filter cartridge (1), a float ball type mechanical drainer (2), a liquid collecting bottle (3), a conical hopper (4) and a liquid collecting tank (5), characterized in that: The filter cylinder (1) has inclined stainless steel baffles (106) fixed on its inner wall. The filter cylinder (1) has a filter element (104) inside. A vacuum tube (105) is fixed through the bottom of the filter cylinder (1). The lower part of the filter element (104) is screwed to the vacuum tube (105). A curved drain pipe (103) is fixed through the lower part of the periphery of the filter cylinder (1). A float-type mechanical drainer (2) is screwed to the bottom end of the drain pipe (103). A collection bottle (3) is screwed to the bottom end of the float-type mechanical drainer (2). The filter cylinder (1) is also provided with a cone (4) on the outside, and a liquid collection tank (5) is screwed and fixed to the bottom of the cone (4).

2. A vacuum pump air filter assembly for convenient drainage as claimed in claim 1 wherein: The outer wall of the vacuum tube (105) is provided with an external thread (1051), the inner wall of the vacuum tube (105) is provided with an internal thread (1052), the lower end cap of the filter element (104) is provided with a threaded groove (1041), and the filter element (104) is screwed onto the outside of the vacuum tube (105) through the engagement of the threaded groove (1041) and the external thread (1051).

3. A vacuum pump air filter assembly for convenient drainage as claimed in claim 1 wherein: The upper end of the filter cylinder (1) is screwed and fixed with a cylinder cover (101). The upper end of the filter element (104) is higher than the upper end of the filter cylinder (1), and the upper end of the filter element (104) abuts against the inner top surface of the cylinder cover (101).

4. The vacuum pump air filter assembly of claim 1, wherein: The upper end of the cone (4) is fixed with a volute (401), and the top of the volute (401) is fixed with an air pipe (403), and the periphery of the volute (401) is fixed with an air inlet (402).

5. A vacuum pump air filter assembly for convenient drainage as claimed in claim 4 wherein: The filter cylinder (1) has a through opening (107) on its periphery. An air inlet channel (102) is fixed outside the through opening (107). The end of the air inlet channel (102) away from the filter cylinder (1) is fixedly connected to the air pipe (403) in a through manner.

6. A vacuum pump air filter assembly for convenient drainage as claimed in claim 5 wherein: The stainless steel baffle (106) is located above the drain pipe (103), and the height of the stainless steel baffle (106) is less than the height of the filter element (104), and the height of the inlet (107) is less than the height of the stainless steel baffle (106).

7. A vacuum pump air filter assembly for convenient drainage as claimed in claim 1 wherein: The bottoms of the liquid collection tank (5) and the liquid collection bottle (3) are flush.

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