CN103495306A - Automatic backwash filter with rated flow of 900L/min - Google Patents
Automatic backwash filter with rated flow of 900L/min Download PDFInfo
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- CN103495306A CN103495306A CN201310437979.4A CN201310437979A CN103495306A CN 103495306 A CN103495306 A CN 103495306A CN 201310437979 A CN201310437979 A CN 201310437979A CN 103495306 A CN103495306 A CN 103495306A
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Abstract
The invention provides an automatic backwash filter with rated flow of 900L/min. The automatic backwash filter comprises a valve body, main valve element components, a liquid return check valve, filter element components and an electromagnetic pilot operated valve, wherein left and right working chambers and left and right valve element chambers are formed in the valve body; a liquid inlet is drilled in the upper side of the valve body; a liquid outlet is drilled in the lower side of the valve body; a drain outlet is drilled in the left and right sides of the valve body respectively; the left and right working chambers, the left and right valve element chambers, the liquid inlet, the liquid outlet and the drain outlets are communicated; the main valve element components, the filter element components and the liquid return check valve are installed in the valve body; pistons, valve elements, valve seats, valve sleeves, spring seats, springs and plugs are connected by threads to form the main valve element components; as whole connector clips, the main valve element components are installed in the working chambers; the filter element components are formed by connecting filter screens and connectors together by middle threads; as whole connector clips, the filter element components are installed in the filter element chambers of the valve body and are connected and fixed by U pins; the electromagnetic pilot operated valve is fixed together with the valve body by adopting fastening screws. The automatic backwash filter is completely applicable to electro-hydraulically controlled hydraulic supports of fully mechanized coal mining faces of coal mines.
Description
Technical field
The present invention relates to a kind of filter, referring in particular to a kind of metered flow for coal mine fully-mechanized mining working electricity hydraulic control hydraulic support is the 900L/min automatic backwashing filter.
Background technology
In the prior art, the structure of filter is varied, as disclosed as Chinese patent " a kind of backwash filter with alarm function " (ZL200920118960.2, an open day 2010.3.10) it comprises and draws together valve body, have inlet on valve body, liquid outlet, left leakage fluid dram, right leakage fluid dram, left element kit is installed in valve body, right element kit, the left side valve pocket of valve body is in-built left valve seat, left steel ball, left joint, the right side valve pocket of valve body is in-built right valve seat, right steel ball, right connector, epicoele and cavity of resorption at left element kit or right element kit are respectively equipped with hollow sealing screw and lower hollow sealing screw, upper hollow sealing screw and lower hollow sealing screw device taking alarm.At hydraulic pressure system of hydraulic support, working media used is oil emulsion, because the colliery conditions down-hole is more severe, unavoidably there is impurity, if these impurity can not be cleared out in time, normally in service in system, these impurity can pollute other Hydraulic Elements, thereby cause the operation of hydraulic system part ineffective, out of control, even damage.Be subject to due to subsurface environment, space, after plugged filter in the past commonly used, necessary manual backwashing or stop cleaning, and can't determine and when stop up, operating space requires larger, has had a strong impact on coal production and safety.
Summary of the invention
The object of the invention is to overcome the above-mentioned defect that prior art exists, it is the 900L/min automatic backwashing filter that a kind of a kind of metered flow for coal mine fully-mechanized mining working electricity hydraulic control hydraulic support is provided.
For achieving the above object, the solution that the present invention takes is: a kind of metered flow is the 900L/min automatic backwashing filter, it comprises valve body, have two identical working chambers and two identical filter core chambeies on valve body, the valve body upside is drilled with inlet P, downside is drilled with liquid outlet A, left and right sides and is drilled with respectively a left sewage draining exit RR and right sewage draining exit RL, and two working chambers, two filter core chambeies, inlet, liquid outlet, left sewage draining exit RR, right sewage draining exit RL are connected, place spool in piston, piston is threaded with spool, spool overcoat valve seat and valve pocket, valve pocket is on valve seat, inserting spring base in spool fixes by screw thread, place spring on spring base, screw plug inserts valve pocket and fixes by threaded engagement, spring one end withstands spring base, the other end withstands screw plug, piston, spool, valve seat, valve pocket, spring base, spring and screw plug form the main valve plug assembly, the main valve plug assembly is made the as a whole plug connector working chamber of packing into, filter screen and joint are by the intermediate thread composition element kit that links together, element kit is done the as a whole plug connector filter core chamber of packing into, joint is connected and fixed by the U-shaped pin, electromagnetic priority valve adopts trip bolt to fix with valve body, the liquid check valve also is installed back in valve body.
This kind of metered flow is that the 900L/min automatic backwashing filter is applicable to coal mine fully-mechanized mining working electricity hydraulic control hydraulic support fully, with electric hydraulic control system, coordinates, need not manual backwashing or stop cleaning.The main valve plug assembly is integral plugged formula, and installation, maintenance is more convenient.Element kit is divided into the plug-in structure to be installed, and keeps in repair, changes convenient and swift.
The accompanying drawing explanation
Fig. 1 is that the master of the present embodiment looks cross-sectional view.
Fig. 2 is the A-A cross-sectional view in Fig. 1.
In figure: 1, valve body, 2, the guide returns the liquid fabrication hole, 3, right sewage draining exit RL, 4, filter screen, 5, screw plug, 6, technique is stifled, 7, the U-shaped pin, 8, return the liquid check valve, 9, electromagnetic priority valve, 10, liquid outlet A, 11, the filter core chamber, 12, working chamber, 13, piston, 14, spool, 15, valve seat, 16, valve pocket, 17, left sewage draining exit RR, 18, spring base, 19, spring, 20, screw plug, 21, inlet P.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is remake to description.
Referring to Fig. 1 and Fig. 2, a kind of metered flow is the 900L/min automatic backwashing filter, it comprises valve body 1, have two identical working chambers 12 and two identical filter core chambeies 11 on valve body 1, valve body 1 upside is drilled with inlet P21, downside is drilled with liquid outlet A10, left and right sides and is drilled with respectively a left sewage draining exit RR17 and right sewage draining exit RL3, and two working chambers 12, two filter core chambeies 11, inlet P21, liquid outlet A10, left sewage draining exit RR17, right sewage draining exit RL3 are connected, place spool 14 in piston 13, piston 13 is threaded with spool 14, spool 14 overcoat valve seats 15 and valve pocket 16, valve pocket 16 is on valve seat 15, inserting spring base 18 in spool 14 fixes by screw thread, place spring 19 on spring base 18, screw plug 20 inserts valve pocket 16 and fixes by threaded engagement, spring 19 1 ends withstand spring base 18, the other end withstands screw plug 20, piston 13, spool 14, valve seat 15, valve pocket 16, spring base 18, spring 19 and screw plug 20 form the main valve plug assembly, the main valve plug assembly is made the as a whole plug connector working chamber 12 of packing into, filter screen 4 and joint 5 are by the intermediate thread composition element kit that links together, element kit is done the as a whole plug connector filter core chamber 11 of packing into, joint 5 is connected and fixed by U-shaped pin 7, electromagnetic priority valve 9 adopts trip bolt fixing with valve body 1, liquid check valve 8 also is installed back in valve body 1.
The plug of described electromagnetic priority valve 9 adopts cubic explosion-proof plug-type structure.
Referring to Fig. 1, the valve pocket 16 in described main valve plug assembly is fixed with valve body 1 threaded engagement.
The seal point of described main valve plug assembly adopts the hard sealing mechanism of the conical surface, long service life, and contamination resistance is strong.
The operation principle that this kind of metered flow is the 900L/min automatic backwashing filter is: when inlet P21 feed liquor, liquid is through the endoporus of valve seat 15 in the main valve plug assembly of left and right, flow into filter core chamber, left and right 11, after the left and right element kit filters, liquid flows into each components and parts in electric hydraulic control hydraulic bracket system through liquid outlet A10.When needs recoil cleaning to filter core when, system need not be shut down, and by the computer (belonging to electric hydraulic control system) be connected with electromagnetic priority valve 9, realizes Long-distance Control.When needs are cleaned the left side element kit, electromagnetic priority valve 9 one working hole energisings, pilot valve liquid to left side main valve plug assembly, promotes piston 13 and spool 14 through valve body 1 feed flow, piston 13 and valve seat 15 are sealed, and spool 14 forms opened gap with valve seat 15; Simultaneously, the liquid of element kit inner chamber oppositely rushes liquid from inner chamber to exocoel through the left side filter core, through left side working chamber 6 and left side valve seat 15 endoporus, from left sewage draining exit RR17, foul is discharged; After electromagnetic priority valve 9 is stopped power supply, left side main valve plug component recovery normal filtration state, 9 times liquid liquid of electromagnetic priority valve flow into back guide in liquid check valve 8 and return the liquid fabrication hole and flow into right sewage draining exit RL3 again through returning liquid check valves 8, return 9 times liquid of liquid check valve 8 assurance electromagnetic priority valves without being pressed, guarantee that the function of electromagnetic priority valve 9 is not subject to the impact of being pressed to lose normal function.Right side filter core back flush operation principle is identical with the left side operation principle.
Claims (4)
1. a metered flow is the 900L/min automatic backwashing filter, it comprises valve body (1), it is characterized in that: have two identical working chambers (12) and two identical filter core chambeies (11) on valve body (1), valve body (1) upside is drilled with that inlet P (21), downside are drilled with liquid outlet A (10), left and right sides is drilled with respectively the dirty RR (17) of a left bank and right sewage draining exit RL (3), and two working chambers (12), two filter core chambeies (11), inlet P (21), liquid outlet A (10), left bank dirt RR (17), right blowdown RL (3) are connected, place spool (14) in piston (13), piston (13) is threaded with spool (14), spool (14) overcoat valve seat (15) and valve pocket (16), valve pocket (16) is on valve seat (15), inserting spring base (18) in spool (14) fixes by screw thread, the upper spring (19) of placing of spring base (18), screw plug (20) inserts valve pocket (16) and fixes by threaded engagement, spring (19) one ends withstand spring base (18), the other end withstands screw plug (20), piston (13), spool (14), valve seat (15), valve pocket (16), spring base (18), spring (19) and screw plug (20) form the main valve plug assembly, the main valve plug assembly is made the as a whole plug connector working chamber (12) of packing into, filter screen (4) and joint (5) are by the intermediate thread composition element kit that links together, element kit is done the as a whole plug connector filter core chamber (11) of packing into, joint (5) is connected and fixed by U-shaped pin (7), electromagnetic priority valve (9) adopts the same valve body of trip bolt (1) fixing, liquid check valve (8) also is installed back in valve body (1).
2. a kind of metered flow according to claim 1 is the 900L/min automatic backwashing filter, it is characterized in that: the plug of described electromagnetic priority valve (9) adopts cubic explosion-proof plug-type structure.
3. a kind of metered flow according to claim 1 is the 900L/min automatic backwashing filter, it is characterized in that: the valve pocket (16) in described main valve plug assembly is fixed with valve body (1) threaded engagement.
4. a kind of metered flow according to claim 1 is the 900L/min automatic backwashing filter, it is characterized in that: the seal point of described main valve plug assembly adopts the hard sealing mechanism of the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310437979.4A CN103495306A (en) | 2013-09-16 | 2013-09-16 | Automatic backwash filter with rated flow of 900L/min |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310437979.4A CN103495306A (en) | 2013-09-16 | 2013-09-16 | Automatic backwash filter with rated flow of 900L/min |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103495306A true CN103495306A (en) | 2014-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310437979.4A Pending CN103495306A (en) | 2013-09-16 | 2013-09-16 | Automatic backwash filter with rated flow of 900L/min |
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| Country | Link |
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| CN (1) | CN103495306A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395449A (en) * | 2018-12-13 | 2019-03-01 | 丰隆高科液压股份有限公司 | A kind of air water two-way hydraulic control back-flushing filter |
| CN111871056A (en) * | 2020-07-30 | 2020-11-03 | 四川格林流体控制设备有限公司 | Modular filter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102100984A (en) * | 2011-01-14 | 2011-06-22 | 丰隆液压有限公司 | Automatic backwashing filter |
| CN202061468U (en) * | 2011-05-22 | 2011-12-07 | 丰隆液压有限公司 | Insert type automatic backwash filter |
| CN203724868U (en) * | 2013-09-16 | 2014-07-23 | 丰隆液压有限公司 | Automatic back-flushing filter with rated flow of 900L/min |
-
2013
- 2013-09-16 CN CN201310437979.4A patent/CN103495306A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102100984A (en) * | 2011-01-14 | 2011-06-22 | 丰隆液压有限公司 | Automatic backwashing filter |
| CN202061468U (en) * | 2011-05-22 | 2011-12-07 | 丰隆液压有限公司 | Insert type automatic backwash filter |
| CN203724868U (en) * | 2013-09-16 | 2014-07-23 | 丰隆液压有限公司 | Automatic back-flushing filter with rated flow of 900L/min |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395449A (en) * | 2018-12-13 | 2019-03-01 | 丰隆高科液压股份有限公司 | A kind of air water two-way hydraulic control back-flushing filter |
| CN109395449B (en) * | 2018-12-13 | 2024-01-23 | 丰隆高科液压股份有限公司 | Gas-water double-path liquid control backflushing filter |
| CN111871056A (en) * | 2020-07-30 | 2020-11-03 | 四川格林流体控制设备有限公司 | Modular filter |
| CN111871056B (en) * | 2020-07-30 | 2022-07-12 | 四川格林流体控制设备有限公司 | Modular filter |
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Application publication date: 20140108 |