CN108392934B

CN108392934B - Compressed air filter

Info

Publication number: CN108392934B
Application number: CN201810449824.5A
Authority: CN
Inventors: 张嗣宇; 夏汝坤; 王雪峰; 宋巍; 赵光超; 郑计
Original assignee: BEIJING SAISHENG PHARMACEUTICAL CO LTD
Current assignee: BEIJING SAISHENG PHARMACEUTICAL CO LTD
Priority date: 2018-05-11
Filing date: 2018-05-11
Publication date: 2023-08-22
Anticipated expiration: 2038-05-11
Also published as: CN108392934A

Abstract

The invention relates to the technical field of purification, and discloses a compressed air filter which comprises a centrifuge, a filter covered on the outer side of the centrifuge and a liquid collecting container communicated with the bottom of the centrifuge, wherein a centrifugal rotating track is arranged on the inner side of the centrifuge, a compressed air inlet is arranged at the upper end of the centrifuge, the lower end of the centrifuge is communicated with one side of the bottom end of the filter, and a compressed air outlet is arranged on the other side of the bottom end of the filter. The centrifugal rotating track prolongs the centrifugal action time of the compressed air and improves the separation effect of the compressed air and impurities such as water, oil and the like; the filter with the inverted U-shaped longitudinal section increases the filtering path of the compressed air and improves the filtering efficiency of the compressed air; compressed air adopts the form of going up and going down, through centrifugal rotation and adsorption filtration two-stage purification, has improved compressed air's purifying effect and quality.

Description

Compressed air filter

Technical Field

The invention relates to the technical field of purification, in particular to a compressed air filter.

Background

Compressed air has become the second most energy source for modern industry, except for electricity, and in the field of modern industry, it is throughout the production process. In the technical field of purification, the quality requirement on the compressed air is extremely high, and not only is the compressed air required to be oilless and anhydrous, but also the sterility is strictly required. In the preparation process of compressed air, the air can be brought into lubricating oil and mechanical abrasive dust of an air compressor when being compressed, a large amount of supersaturated water vapor in the compressed air is restored into water drops, and if the water, dust, oil dirt and the like in the compressed air cannot be timely removed, the air transmission pipeline can be corroded and blocked, the operation of pneumatic components is failed, and a mechanical sealing device is worn, so that immeasurable loss is possibly caused to production.

The existing compressed air filter has the problems of single filtering form, poor filtering compressed air purifying effect, incapability of visualizing the inside of the filter, short service life, high cost and the like.

Disclosure of Invention

First, the technical problem to be solved

The invention aims to provide a compressed air filter to solve the problems of single filtering form, poor filtering compressed air purifying effect, short service life and high cost of the conventional compressed air filter.

(II) technical scheme

In order to solve the technical problems, the invention provides a compressed air filter, which comprises a centrifuge, a filter and a liquid collecting container, wherein the filter is covered on the outer side of the centrifuge, the liquid collecting container is communicated with the bottom of the centrifuge, a plurality of centrifugal rotating tracks are arranged on the inner side wall of the centrifuge at intervals along the vertical direction, a liquid guide pipe is arranged on the outer side wall of the centrifuge along the vertical direction, through holes communicated with the liquid guide pipe are arranged on the side wall of the centrifuge between two adjacent centrifugal rotating tracks, a water outlet of the liquid guide pipe is communicated with the liquid collecting container, a compressed air inlet is arranged at the upper end of the centrifuge, the lower end of the centrifuge is communicated with one side of the filter, and a compressed air outlet is arranged at the bottom end of the other side of the filter.

The filter is of a structure with an inverted U-shaped longitudinal section, an upper plate is arranged on an upper end cover of the filter, and a base plate is arranged at the bottom end of the filter.

Wherein, install the adsorption particle in the filter, the adsorption particle is the silica gel micelle that can discolour.

The filter is characterized in that a sleeve made of transparent materials is arranged on the outer periphery of the filter, a protective cover is arranged on the outer side of the sleeve, and an observation window is arranged on the protective cover.

Wherein the sleeve is made of organic glass or toughened glass.

And sealing rings are arranged between the sleeve and the protective cover and between the upper plate and the base plate.

Wherein, the upper plate is connected with the base plate through a screw rod.

Wherein, the outlet of the liquid collecting container is provided with a drainage switch.

The centrifugal rotating rails are arranged in a spiral mode, and the lower ports of the centrifugal rotating rails close to the lower end of the centrifugal device are communicated with the filter.

Wherein, the centrifuge is equipped with hydrophobic filter membrane with filter intercommunication department, the filter is equipped with compressed air exit is equipped with hydrophobic filter membrane.

(III) beneficial effects

According to the compression filter provided by the invention, compressed air enters the centrifuge from the compressed air inlet at the upper end of the centrifuge, and is accelerated to rotate vertically downwards by utilizing gravity and power, so that the centrifugal rotating track prolongs the centrifugal action time of the compressed air, and the separation effect of the compressed air and impurities such as water, oil and the like is improved; compressed air enters from one side of the filter with the inverted U-shaped longitudinal section and is discharged from the compressed air outlet at the other side, so that the filtering path of the compressed air is increased, and the filtering efficiency of the compressed air is improved; compressed air adopts the form of going up and going down, through centrifugal rotation and adsorption filtration two-stage purification, has improved compressed air's purifying effect and quality.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

fig. 2 is a front view of an embodiment of the present invention.

In the figure, 1: a centrifuge; 11: a catheter; 12: centrifuging the rotating rail; 13: a compressed air inlet; 2: a filter; 21: adsorbing particles; 22: a sleeve; 23: a protective cover; 24: a screw; 25: an observation window; 26: a hydrophobic filter screen; 27: a compressed air outlet; 28: an upper plate; 29: a substrate; 3: a liquid collecting container; 31: and a drain switch.

Detailed Description

The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and 2, an embodiment of the present invention provides a compressed air filter, which includes a centrifuge 1, a filter 2 covered on the outside of the centrifuge 1 and having a U-shaped longitudinal section, and a liquid collecting container 3 connected with the bottom of the centrifuge 1, wherein a plurality of centrifugal rotation rails 12 are vertically arranged on the inner side wall of the centrifuge 1, a liquid guide tube 11 is vertically arranged on the outer side wall of the centrifuge 1, a through hole connected with the liquid guide tube 11 is arranged on the side wall of the centrifuge 1 between two adjacent centrifugal rotation rails 12, a water outlet of the liquid guide tube 11 is connected with the liquid collecting container 3, a compressed air inlet 13 is arranged at the upper end of the centrifuge 1, the lower end of the centrifuge 1 is connected with one side of the filter 2, and a compressed air outlet 27 is arranged at the bottom end of the other side of the filter 2.

Further, the upper end of the centrifuge 1 is provided with a compressed air inlet 13 for guiding compressed air into the centrifuge 1, a plurality of centrifugal rotating rails 12 which are spirally arranged are arranged on the inner side wall of the centrifuge 1 along the vertical direction at intervals, 6 centrifugal rotating rails 12 are arranged in the embodiment, the compressed air flows downwards under the action of gravity and centrifugally rotates along the centrifugal rotating rails 12, the time of the centrifugal action of the compressed air is prolonged, the separation effect of the compressed air and impurities such as water, oil and the like is improved, and the common mode of the existing compressed air entering and exiting along the horizontal direction is changed.

The centrifugal device comprises a centrifugal rotating rail 12, a liquid guide pipe 11, a water outlet and a liquid collecting container 3, wherein the liquid guide pipe 11 is arranged on the outer side wall of the centrifugal device 1 along the vertical direction, through holes communicated with the liquid guide pipe 11 are formed in the side wall of the centrifugal device 1 between two adjacent centrifugal rotating rails 12, the eccentricity of impurities such as water and oil mixed in compressed air is large, the periphery of the centrifugal rotating rails 12 rotate, the impurities enter the liquid guide pipe 11 through the through holes at the lower end of the centrifugal rotating rails 12, the water outlet of the liquid guide pipe 11 is communicated with the liquid collecting container 3, the impurities such as the centrifugally separated water and oil are led into the liquid collecting container 3, a water draining switch 31 is arranged at the water draining outlet of the liquid collecting container 3, impurities in the liquid collecting container 3 are conveniently removed, the impurities outside are prevented from entering the compressed air filter, and the water draining switch 31 is preferably a one-way drain valve.

Further, the outside cladding of centrifuge 1 has filter 2, and filter 2's longitudinal section is the type of falling U, and filter 2's upper end is equipped with the opening and establishes upper plate 28 through the lid and seal, and filter 2's bottom is equipped with base plate 29 for support whole filter, is connected fixedly through screw rod 24 between upper plate 28 and the base plate 29, guarantees filter 2's seal strength and the structural strength of whole device, convenient to detach changes.

Wherein, one side of filter 2 bottom and the lower port intercommunication of centrifugal rotatory track 12, the opposite side of filter 2 bottom is equipped with compressed air outlet 27, makes compressed air get into the filtration through whole reverse U type filter 2 by one side of filter 2 bottom after the centrifugal effect of centrifuge 1, and the opposite side of filter 2 bottom is discharged again, has increased compressed air's filtration stroke, improves the filter effect.

Further, the filter 2 is provided with the adsorption particles 21, preferably color-changeable silica gel particles, which are used as color-changeable drying agents, and the color of the silica gel particles changes after water absorption so as to indicate the saturation degree of the silica gel particles for water absorption, so as to judge the filtering effect, and the upper plate 28 at the upper end of the filter 2 is opened to replace the silica gel particles, so that the silica gel particles after water absorption and saturation can be repeatedly used after being dried, the cost is reduced, the service life is prolonged, and the drying effect is improved.

Wherein, filter 2 periphery side is equipped with transparent material's sleeve 22, optional organic glass or toughened glass, and sleeve 22's outside is equipped with safety cover 23 for protect whole filter equipment, be equipped with viewing window 25 on the safety cover 23, be used for the colour change of the interior silica gel particle of real-time observation filter 2, real-time observation compressed air filter effect, all be equipped with the sealing washer between sleeve 22 and safety cover 23 and upper plate 28 and the base plate 29, guarantee the leakproofness of whole device, prevent compressed air's leakage.

Further, a hydrophobic filter membrane 26 is arranged at the communication part of the centrifugal rotating track 12 and the filter 2, and the hydrophobic filter membrane 26 is arranged at the position of the compressed air outlet 27 of the filter 26, so that the water carried by the compressed air is filtered out, and the filtering effect is improved; the mode of up-and-down inlet and outlet of compressed air is used for replacing the common mode of horizontal inlet and outlet, and a two-stage filtering method of centrifugation and filtration is adopted, so that the purifying effect of the compressed air is obviously improved.

The arrow direction in fig. 1 is the flow direction of the compressed air.

The working process flow of the embodiment of the invention is as follows:

introducing compressed air into the centrifuge through the compressed air inlet, centrifugally moving the compressed air along the centrifugal rotating track under the action of gravity and power, enabling a part of impurities such as water, oil and the like in the compressed air to enter the liquid guide tube under the action of the centrifuge, and removing the impurities through the liquid collecting container;

the compressed air after centrifugal action enters the filter through one side of the bottom end of the filter and flows along the arrow direction in the figure 1, and after flowing through the whole filter, the compressed air is fully adsorbed, filtered and dried through silica gel particles, and is discharged from the filter through a compressed air outlet arranged at the other side of the bottom end of the filter, so that the filtering and purifying are finished;

the operator passes through the sleeve through the observation window, observes the colour change of silica gel particle in the filter, and after silica gel particle water saturation, opens the upper plate, changes the silica gel particle, and the silica gel particle that takes out is dried in order to be used repeatedly.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims

1. The compressed air filter is characterized by comprising a centrifuge, a filter covered on the outer side of the centrifuge and a liquid collecting container communicated with the bottom of the centrifuge, wherein a plurality of centrifugal rotating tracks are arranged on the inner side wall of the centrifuge at intervals along the vertical direction, a liquid guide pipe is arranged on the outer side wall of the centrifuge along the vertical direction, through holes communicated with the liquid guide pipe are arranged on the side wall of the centrifuge between two adjacent centrifugal rotating tracks, a water outlet of the liquid guide pipe is communicated with the liquid collecting container, a compressed air inlet is arranged at the upper end of the centrifuge, the lower end of the centrifuge is communicated with one side of the filter, and a compressed air outlet is arranged at the bottom end of the other side of the filter;

the filter is of an inverted U-shaped structure in longitudinal section, an upper plate is arranged on the upper end cover of the filter, and a substrate is arranged at the bottom end of the filter;

the centrifugal rotating rails are arranged in a spiral mode, and the lower port of the centrifugal rotating rail close to the lower end of the centrifuge is communicated with the filter; the centrifugal device is characterized in that a hydrophobic filter membrane is arranged at the position where the centrifugal device is communicated with the filter, and the filter is provided with the hydrophobic filter membrane at the position of the compressed air outlet.

2. A compressed air filter according to claim 1, wherein the filter has adsorbent particles disposed therein, the adsorbent particles being variable-color silica gel particles.

3. The compressed air filter according to claim 1, wherein a sleeve made of transparent material is provided on the outer peripheral side of the filter, a protective cover is provided on the outer side of the sleeve, and an observation window is provided on the protective cover.

4. A compressed air filter according to claim 3, wherein the sleeve is made of plexiglas or toughened glass.

5. A compressed air filter according to claim 3, wherein sealing rings are provided between the sleeve and the protective cover and the upper and base plates.

6. The compressed air filter of claim 1, wherein the upper plate is connected to the base plate by a screw.

7. A compressed air filter according to claim 1, wherein a drain switch is provided at the drain opening of the liquid collecting container.