CN216537594U

CN216537594U - Multistage precision filter

Info

Publication number: CN216537594U
Application number: CN202122674359.5U
Authority: CN
Inventors: 罗剑峰; 马要; 崔鑫
Original assignee: Hang Zhou Juke Air Separator Installation Manufacture Co ltd
Current assignee: Hang Zhou Juke Air Separator Installation Manufacture Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-05-17
Anticipated expiration: 2031-11-03

Abstract

The utility model belongs to the technical field of filters, and aims to provide a multistage precision filter which comprises a cylinder body, wherein seal heads are arranged at the upper part and the lower part of the cylinder body, and a sealing partition plate is arranged in the middle of the cylinder body; a spiral separator, a primary filter component and a fine filter component are arranged in the cylinder, the primary filter component is fixed on the sealing partition plate and is positioned in the center of the spiral separator, and the fine filter component is fixed on a filter element fixing plate at the upper end in the cylinder; a pollution discharge guide pipe is further arranged in the cylinder, the top of the pollution discharge guide pipe is connected with the sealed partition plate, and the bottom of the pollution discharge guide pipe is connected with a pollution discharge port of the upper cylinder, so that oil stains filtered by the fine filtering component can be conveniently discharged; the top of the cylinder body is provided with an air outlet, the side surface of the cylinder body is provided with an air inlet, and the middle of the bottom end enclosure is provided with a lower cylinder body sewage outlet. The utility model has the characteristics of compact structure, high filtration and purification efficiency, convenient pollution discharge, long service life and the like, and can be widely applied to the technical field of compressed air filtration.

Description

Multistage precision filter

Technical Field

The utility model belongs to the technical field of filters, and particularly relates to a multistage precision filter.

Background

Compressed air often contains a large amount of suspended particles, water, oil and other impurities, and in the field of industrial application (such as air separation equipment fields like nitrogen making machines and oxygen making machines), impurities in the compressed air are often required to be separated firstly to obtain usable and relatively clean air.

At present, the existing precision filter generally adopts a single-stage or double-stage structure, needs to be circularly purified for many times during filtering and purifying, and has the defects of low purifying efficiency, long purifying time, poor filtering effect and the like; in addition, in the existing double-stage precision filter, the sewage discharged by the top filtering device of the double-stage precision filter needs to flow into the lower end cylinder firstly and then flows into the sewage discharge valve at the bottom, the sewage discharge process is long and time-consuming, more impurities are accumulated in the lower end cylinder, the air cleanliness after primary filtering is influenced, and the service life of the filter cylinder is also adversely affected to a certain extent. Thus, there is a need for further improvements in existing precision filters.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a multistage precision filter which has the characteristics of compact structure, high filtering and purifying efficiency, convenience in pollution discharge, long service life and the like, and can be widely applied to the technical field of compressed air filtration.

In order to achieve the above object, the present invention adopts the following technical solutions: a multistage precision filter comprises a cylinder body, wherein seal heads are arranged at the upper part and the lower part of the cylinder body, and a sealing partition plate is arranged in the middle of the cylinder body; a spiral separator, a primary filter component and a fine filter component are arranged in the cylinder, the primary filter component is fixed on the sealing partition plate and is positioned in the center of the spiral separator, and the fine filter component is fixed on a filter element fixing plate at the upper end in the cylinder; a pollution discharge guide pipe is further arranged in the cylinder, the top of the pollution discharge guide pipe is connected with the sealed partition plate, and the bottom of the pollution discharge guide pipe is connected with a pollution discharge port of the upper cylinder, so that oil stains filtered by the fine filtering component can be conveniently discharged; the top of the cylinder body is provided with an air outlet, the side surface of the cylinder body is provided with an air inlet, and the middle of the bottom end enclosure is provided with a lower cylinder body sewage outlet.

As an improvement, the barrel divide into barrel and lower barrel, go up the barrel with the barrel is equipped with mounting flange down, through mounting flange connects the barrel for seal structure.

As a modification, the seal partition plate is located between the upper cylinder and the lower cylinder.

As an improvement, the surface of the seal separation plate is embedded with a rubber lining.

As an improvement, the pollution discharge guide pipe is made of galvanized steel pipe or stainless steel and is obliquely inserted into the lower end of the cylinder body.

As an improvement, the upper cylinder sewage draining outlet is positioned on the side surface of the lower end sealing head of the cylinder and forms an included angle of 25-35 degrees with the vertical direction.

As an improvement, the air inlet and the air outlet are both in flange connection structures.

As an improvement, the barrel is made of stainless steel, and the thickness of the stainless steel is 3-6 mm.

The utility model has the following beneficial effects: a multi-stage precision filter has the characteristics of compact structure, high filtration and purification efficiency, convenient pollution discharge, long service life and the like, and a spiral separator, a primary filter component and a fine filter component are arranged in a cylinder body, so that the three-stage filtration is adopted to effectively improve the filtration efficiency of impurities and oil water in compressed air and improve the cleanliness of the used air; the pollution discharge guide pipe is arranged in the cylinder body, so that oil stains filtered by the precise filtering assembly in the cylinder body can be conveniently discharged, the discharge from the lower cylinder body is avoided, and the cleanness and no pollution in the lower cylinder body are ensured; in addition, the barrel provides the anti oil water erosion performance of barrel through adopting stainless steel, avoids the barrel to rust and influences life.

Drawings

FIG. 1 is a schematic diagram of a multi-stage fine filter according to the present invention.

In the figure: 1. sealing the end; 2. sealing the partition plate; 3. installing a flange; 4. an upper cylinder body; 5. a lower cylinder body; 6. a spiral separator; 7. a primary filtration assembly; 8. a fine filtration component; 9. a filter element fixing plate; 10. a pollution discharge guide pipe; 11. a sewage discharge port of the upper cylinder body; 12. an air outlet; 13. an air inlet; 14. a sewage discharge outlet of the lower cylinder body.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings and embodiments: as shown in fig. 1, the multistage precision filter of the present invention comprises a cylinder body, wherein the upper and lower ends of the cylinder body are provided with seal heads 1, the middle of the cylinder body is provided with a seal partition plate 2, the cylinder body is divided into an upper cylinder body 4 and a lower cylinder body 5, the upper cylinder body 4 and the lower cylinder body 5 are provided with mounting flanges 3, the cylinder body is connected into a seal structure through the mounting flanges 3, and the seal partition plate 2 is positioned between the upper cylinder body 4 and the lower cylinder body 5; a spiral separator 6, a primary filter component 7 and a fine filter component 8 are arranged inside the cylinder, the primary filter component 7 is fixed on the seal partition plate 2 and is positioned in the center of the spiral separator 6, and the fine filter component 8 is fixed on a filter element fixing plate 9 inside the upper cylinder 4; a pollution discharge guide pipe 10 is further arranged in the cylinder, the top of the pollution discharge guide pipe 10 is connected with the sealed partition plate 2, and the bottom of the pollution discharge guide pipe is connected with a pollution discharge port 11 of the upper cylinder, so that oil stains filtered by the fine filtering component 8 can be conveniently discharged; the top of the cylinder body is provided with an air outlet 12, the side surface is provided with an air inlet 13, and the middle of the bottom end enclosure (1) is provided with a lower cylinder body sewage outlet 14.

Further, a rubber lining is inlaid on the surface of the sealing partition plate; specifically, the rubber lining is inlaid on the surface of the sealing partition plate through vulcanization, and the thickness of the rubber lining is 10-12 mm.

Further, the pollution discharge guide pipe 10 is made of galvanized steel pipe or stainless steel material and is obliquely inserted into the lower end of the cylinder body; specifically, the drainage guide pipe 10 is obliquely inserted into the lower cylinder 4 inwards, and the oblique insertion angle is less than or equal to 5 degrees.

Further, the upper barrel sewage discharge outlet 11 is located on the side face of the lower end seal head of the barrel and forms an included angle of 25-35 degrees with the vertical direction, and preferably 28-30 degrees.

Further, the air inlet 13 and the air outlet 12 are both flange connection structures, so that the connection with an external pipeline is facilitated.

Further, the barrel adopts stainless steel material, and stainless steel thickness is 3~6mm, preferred 5 mm.

The multistage precision filter has the working principle as follows: compressed air enters from the air inlet 13, firstly impacts the spiral separator 6, then flows downwards along the spiral, liquid free water and oil are separated out under the centrifugal action of the spiral, and the oil and the water flow to the bottom of the barrel along the barrel wall of the lower barrel 5 and are discharged through a lower barrel sewage outlet 14, so that primary filtration is realized; then the gas enters a central primary filtering component to realize secondary particle filtration; gas after the second grade filtration gets into go up barrel 4, reentrant fine filtering subassembly 8 filters oil mist, the dust of less granule to realize tertiary filtration, simultaneously, the warp oil mist and the impurity that fine filtering subassembly 8 filtration was purified pass through blowdown skirt 10 leads to the barrel bottom barrel drain 14 discharges down, and clean compressed air after the multistage filtration passes through gas outlet 12 is connected to external pipeline, thereby reaches the purpose of filtration purification compressed air.

Finally, it should be noted that the above-mentioned list is only a specific embodiment of the present invention. It is obvious that the present invention is not limited to the above embodiments, but many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the utility model.

Claims

1. A multistage precision filter comprises a cylinder body, wherein seal heads (1) are arranged at the upper part and the lower part of the cylinder body, and a sealing partition plate (2) is arranged in the middle of the cylinder body; the filter is characterized in that a spiral separator (6), a primary filter component (7) and a fine filter component (8) are arranged in the cylinder, the primary filter component (7) is fixed on the sealing partition plate (2) and is positioned in the center of the spiral separator (6), and the fine filter component (8) is fixed on a filter element fixing plate (9) at the upper end in the cylinder; a pollution discharge guide pipe (10) is further arranged in the barrel, the top of the pollution discharge guide pipe (10) is connected with the sealed partition plate (2), and the bottom of the pollution discharge guide pipe is connected with a pollution discharge port (11) of the upper barrel; the top of the cylinder body is provided with an air outlet (12), the side surface of the cylinder body is provided with an air inlet (13), and the middle of the bottom end enclosure (1) is provided with a lower cylinder body sewage outlet (14).

2. A multi-stage precision filter according to claim 1, wherein the cylinder body is divided into an upper cylinder body (4) and a lower cylinder body (5), the upper cylinder body (4) and the lower cylinder body (5) are provided with mounting flanges (3), and the cylinder bodies are connected into a sealing structure through the mounting flanges (3).

3. Multistage precision filter according to claim 2, characterized in that the seal separation plate (2) is located intermediate the upper cylinder (4) and lower cylinder (5).

4. A multistage precision filter according to claim 3, characterized in that the sealing partition plate (2) is surface-lined with a rubber lining.

5. The multistage fine filter according to claim 1, wherein the drain lead (10) is a galvanized steel pipe or a stainless steel material and is obliquely inserted into the lower end of the cylinder.

6. The multistage precision filter as claimed in claim 1, wherein the upper cylinder blow-off port (11) is located on the side surface of the cylinder lower end socket (1) and forms an included angle of 25-35 degrees with the vertical direction.

7. A multi-stage precision filter according to claim 1, characterized in that the gas inlet (13) and the gas outlet (12) are both flange-connected structures.

8. The multistage precision filter of claim 1, wherein the cylinder is made of stainless steel, and the thickness of the stainless steel is 3-6 mm.