CN204365018U - Automatic backwashing filter - Google Patents
Automatic backwashing filter Download PDFInfo
- Publication number
- CN204365018U CN204365018U CN201420822209.1U CN201420822209U CN204365018U CN 204365018 U CN204365018 U CN 204365018U CN 201420822209 U CN201420822209 U CN 201420822209U CN 204365018 U CN204365018 U CN 204365018U
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- CN
- China
- Prior art keywords
- valve
- filter
- automatic backwashing
- valve body
- guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Filtration Of Liquid (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a kind of automatic backwashing filter, comprise two and control spool, two filter cores, a 3-position 4-way electromagnetic priority valve, guide's filter core, guide's return check valve and a valve body; Control spool, filter core, guide's filter core, check valve and described valve body to integrate, electromagnetic priority valve is fixed on described valve body by four screws; Valve body has inlet, liquid outlet, sewage draining exit, two are controlled spool and are connected by interface channel with two filter cores.Integration degree is high, structure is simple, detachable maintaining is convenient, the automatic backwashing filter of long service life, applicable large discharge.
Description
Technical field
The utility model relates to a kind of coal-mine hydraulic support hydraulic system valve member, particularly relates to a kind of automatic backwashing filter.
Background technology
Along with improving constantly of fully mechanized mining, the manufacture that becomes more meticulous of the especially widespread adoption of electrohydraulic control system, and hydraulic system hydraulic valve piece, the requirement of underground coal mine working face to emulsifiable solution medium is also more and more higher, needs filter core function of on-line cleaning.Backwash filter is mainly used in filtering provides high-pressure emulsion to each main valve group of hydraulic support, and carries out prefiltration to the emulsion entering electromagnetic priority valve.
In prior art, the hydraulic support backwash filter mainly manual Direct Action Type manual backwashing filter device of use, as shown in Fig. 1 a, 1b, mainly comprises two joysticks, two filters, two ball valves and valve bodies.When the normal feed flow of needs, after high-pressure emulsion enters from inlet, through two ball valves, then forward is by two filter element filterings, flows out, supply clean emulsion to support from liquid outlet.When needs recoil, for filter left in figure mono-, left ball valve is rotated by handle, make inlet high pressure liquid and left filter core cut off feed flow, left recoil mouth is communicated with left filter core, and now after right filter element filtering, clean liquid recoils left filter core, outside impurity on left filter core is discharged by left recoil mouth, after recoil, turning handle, realizes normal filtration feed flow.In like manner, right filter-core back-flushing is also like this.
Backwash filter of the prior art, adopt manual backwashing, frequent needs are manually pulled backwash handle and are carried out backwash, and it considerably increases the labour intensity of workman, and efficiency comparison is low.Due to the relation of backwash installation site, operate and inconvenience.
Utility model content
The purpose of this utility model is to provide that a kind of integration degree is high, structure is simple, detachable maintaining is convenient, the automatic backwashing filter of long service life.
The purpose of this utility model is achieved through the following technical solutions:
Automatic backwashing filter of the present utility model, comprises two and controls spool, two filter cores, a 3-position 4-way electromagnetic priority valve, guide's filter core, guide's return check valve and a valve body;
Described control spool, filter core, guide's filter core, check valve and described valve body integrate, and described electromagnetic priority valve is fixed on described valve body by four screws;
Described valve body has inlet, liquid outlet, sewage draining exit, described two control spools are connected by interface channel with two filter cores.
The technical scheme provided as can be seen from above-mentioned the utility model, the automatic backwashing filter that the utility model embodiment provides, controls spool, two filter cores, a 3-position 4-way electromagnetic priority valve, guide's filter core, guide's return check valve and a valve body owing to comprising two; Control spool, filter core, guide's filter core, check valve and described valve body to integrate, electromagnetic priority valve is fixed on described valve body by four screws; Valve body has inlet, liquid outlet, sewage draining exit, two are controlled spool and are connected by interface channel with two filter cores.Integration degree is high, structure is simple, detachable maintaining is convenient, the automatic backwashing filter of long service life, applicable large discharge.
Accompanying drawing explanation
Fig. 1 a is the front cross-sectional structural representation of manual backwashing filter device of the prior art.
Fig. 1 b is the side structure schematic diagram of manual backwashing filter device of the prior art.
The overall Facad structure schematic diagram of the automatic backwashing filter that Fig. 2 a provides for the utility model embodiment.
The overall side structural representation of the automatic backwashing filter that Fig. 2 b provides for the utility model embodiment.
Fig. 3 sends out flush filter normal operating conditions schematic diagram in the utility model embodiment automatically.
Fig. 4 is the right filter-core back-flushing working state schematic representation of automatic backwashing filter in the utility model embodiment.
In figure: 1-1 (1-2), filter core, 2, electromagnetic priority valve, 3, bolt, 4-1 (4-2), control spool, 5, valve body, 6, guide's filter core, 7, check valve, 8, screw plug assembly, 9, valve pocket, 10, clip, 11, screw plug, 12, valve rod.
Detailed description of the invention
To be described in further detail the utility model embodiment below.
Automatic backwashing filter of the present utility model, its preferably detailed description of the invention be:
Comprise two and control spool, two filter cores, a 3-position 4-way electromagnetic priority valve, guide's filter core, guide's return check valve and a valve body;
Described control spool, filter core, guide's filter core, check valve and described valve body integrate, and described electromagnetic priority valve is fixed on described valve body by four screws;
Described valve body has inlet, liquid outlet, sewage draining exit, described two control spools are connected by interface channel with two filter cores.
The outlet of described guide's filter core is connected with described electromagnetic priority valve;
Described electromagnetic priority valve is connected with described sewage draining exit through described check valve, and described discharging liquid can only unidirectionally pass through, can not be back through.
Described control spool adopts hard sealing structure form.
The mounting structure of described control spool is:
First valve rod is loaded in valve pocket, then valve pocket and screw plug are fixed together by clip.
Described screw plug had liquid bath, is provided with between described valve rod and valve pocket and firmly seals sealing pair.
The area of the left and right both ends of the surface of described valve rod is different.
The outer end of the side Working liquids passage of described valve body is provided with screw plug assembly, and described screw plug assembly adopts split-type structural.
Automatic flush filter of the present utility model, use on coal mine underground support, integration degree is high, and structure is simple, detachable maintaining is convenient, the automatic backwashing filter of long service life, applicable large discharge.
Specific embodiment:
As shown in Fig. 2 a, Fig. 2 b, comprise two and control spool, two filter cores, 3-position 4-way electromagnetic priority valve, guide's filter core, a guide's return check valve and valve body composition; Control spool, filter core, guide's filter core, one-way valve and valve body integrate; Electromagnetic priority valve is fixed on valve body by four screws; Electromagnetic priority valve controls the liquid stream being controlled spool by two; Guide's filter core supplies electromagnetic priority valve after getting filtration high pressure liquid secondary filter; Electromagnetic priority valve returns liquid by being connected with sewage draining exit after guide's return check valve, carries out drainage.
Valve body 5 has inlet P, liquid outlet A, sewage draining exit T, two control spools 4 and two filter cores 1 by between interface channel carry out work.
Described electromagnetic priority valve 2 is directly installed on valve body by 4 bolts 3.
Described guide's filter core 6 enters electromagnetic priority valve 2 after carrying out secondary filter to high pressure liquid.
Described electromagnetic priority valve 2 after check valve 7, then discharges sewage draining exit through drain outlet, and sewage draining exit liquid enters in electromagnetic priority valve 2.
Described screw plug assembly 8 adopts split-type structural, is convenient to processing and installs and safeguard.
Described control spool 4 adopts hard sealing structure form, safe and reliable.
Described control spool 4 first loads valve rod 12 in valve pocket 9, and valve pocket 9 and screw plug 11 are fixed together by clip 10, valve parts is few, and processing cost is low, and reliability is high.
Described screw plug 11 had liquid bath, just moves with electromagnetic priority valve high voltage control hydraulic control valve bar 12, formed with valve pocket 9 and firmly seal sealing pair, realize counter-flush.
Described control spool 4 realizes commutation function by valve rod 12 left and right area difference, and reduce spring and use, structure is simple, improves service life.
The principle that the utility model normally works is as shown in Figure 3:
Inlet P height hydraulic pressure passes through fluid course, liquid flow path direction as shown by arrows, spool 4 is controlled respectively through two, left and right, control valve rod 12 in spool and pass through action of hydraulic force, passage shown in final formation figure tri-, high pressure liquid comes together in liquid outlet A after filter core 1 after filtration again and goes out, and realizes the emulsion that supply support control valve cleannes are high.Now, after liquid outlet A place high pressure liquid entered guide's filter core 6, always for pilot valve 2 provides high pressure liquid.
When needs recoil one of them filter core, to clean right side filter core, as shown in Figure 4:
There is provided a signal of telecommunication to electromagnetic priority valve, make control liquid enter control chamber, liquid flow direction is as shown in curve arrow.Pilot control high pressure liquid acts on the large end of valve rod area, valve rod 12 and valve pocket 9 are sealed, cut off right side feed flow, left filters rear emulsion by liquid stream is reverse as shown in the figure, by impurity outside the inner outwards filter cartridge flushing of right filter core, impurity is followed liquid and is flowed through right side control spool mouth, outside sewage draining exit T discharge system.Recoil completes, and electromagnetic priority valve gets back to zero-bit, and electromagnetic priority valve oil return opening liquid discharges sewage draining exit T after check valve.Recoil left side filter core operating principle is the same.
The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (7)
1. an automatic backwashing filter, it is characterized in that, comprise two and control spool (4-1,4-2), two filter cores (1-1,1-2), a 3-position 4-way electromagnetic priority valve (2), guide's filter core (6), guide's return check valve (7) and a valve body (5);
Described control spool (4-1,4-2), filter core (1-1,1-2), guide's filter core (6), check valve (7) integrate with described valve body (5), and described electromagnetic priority valve (2) is fixed on described valve body (5) by four screws;
Described valve body (5) has inlet (P), liquid outlet (A), sewage draining exit (T), described two controls spool (4-1,4-2) are connected by interface channel with two filter cores (1-1,1-2).
2. automatic backwashing filter according to claim 1, is characterized in that, the outlet of described guide's filter core (6) is connected with described electromagnetic priority valve (2);
Described electromagnetic priority valve (2) is connected with described sewage draining exit (T) through described check valve (7).
3. automatic backwashing filter according to claim 2, is characterized in that, described control spool (4-1,4-2) adopts hard sealing structure form.
4. automatic backwashing filter according to claim 3, is characterized in that, the mounting structure of described control spool (4-1,4-2) is:
First valve rod (12) is loaded in valve pocket (9), then valve pocket (9) and screw plug (11) are fixed together by clip (10).
5. automatic backwashing filter according to claim 4, is characterized in that, (11) had liquid bath to described screw plug, is provided with and firmly seals sealing pair between described valve rod (12) and valve pocket (9).
6. automatic backwashing filter according to claim 5, is characterized in that, the area of the left and right both ends of the surface of described valve rod (12) is different.
7. the automatic backwashing filter according to any one of claim 1 to 6, it is characterized in that, the outer end of the side Working liquids passage of described valve body (5) is provided with screw plug assembly (8), and described screw plug assembly (8) adopts split-type structural.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420822209.1U CN204365018U (en) | 2014-12-22 | 2014-12-22 | Automatic backwashing filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420822209.1U CN204365018U (en) | 2014-12-22 | 2014-12-22 | Automatic backwashing filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204365018U true CN204365018U (en) | 2015-06-03 |
Family
ID=53321270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420822209.1U Expired - Fee Related CN204365018U (en) | 2014-12-22 | 2014-12-22 | Automatic backwashing filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204365018U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104524858A (en) * | 2014-12-22 | 2015-04-22 | 中煤北京煤矿机械有限责任公司 | Automatic backwashing filter |
| CN112546712A (en) * | 2020-12-07 | 2021-03-26 | 娄底市亿通管业有限公司 | Automatic dirt removing device for water supply equipment |
-
2014
- 2014-12-22 CN CN201420822209.1U patent/CN204365018U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104524858A (en) * | 2014-12-22 | 2015-04-22 | 中煤北京煤矿机械有限责任公司 | Automatic backwashing filter |
| CN112546712A (en) * | 2020-12-07 | 2021-03-26 | 娄底市亿通管业有限公司 | Automatic dirt removing device for water supply equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20161222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |