CN201930634U - Automatic back washing filter - Google Patents
Automatic back washing filter Download PDFInfo
- Publication number
- CN201930634U CN201930634U CN2011200153314U CN201120015331U CN201930634U CN 201930634 U CN201930634 U CN 201930634U CN 2011200153314 U CN2011200153314 U CN 2011200153314U CN 201120015331 U CN201120015331 U CN 201120015331U CN 201930634 U CN201930634 U CN 201930634U
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- China
- Prior art keywords
- valve
- valve body
- plug
- liquid
- filter element
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- Expired - Lifetime
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Abstract
The utility model relates to an automatic back washing filter which comprises a valve body, a choke plug, a liquid transfer plate and an electromagnetic pilot valve, wherein two identical valve cavities, namely a left working cavity and a right working cavity, are formed on the valve body, a liquid inlet port and a liquid discharge port are formed on the left side of the valve body through drilling, the liquid inlet port and the liquid discharge port are communicated with the left and the right working cavities, a filter element cavity is formed on the lower side of the valve body, the lower sides of the left and the right working cavities are communicated with the filter element cavity through two small drilled holes, a main valve core component, a filter element component and a liquid outlet joint are arranged in the valve body, a valve sleeve, a spring, a valve seat, a guide sleeve, a valve core, a piston and a screw plug constitute the main valve core component through threaded connection, the main valve core component is arranged into the valve cavities as an integral plug-in connection part, a reinforcing spring is arranged in the filter element component, the filter element component is arranged into the lower side of the valve body and fixed through the liquid outlet joint, and the electromagnetic pilot valve is fixed with the valve body through the liquid transfer plate by adopting a fastening screw II and the fastening screw. The automatic back washing filter is used for electro-hydraulic control hydraulic supports of fully mechanized coal faces of coal mines.
Description
Technical field
The utility model relates to a kind of filter, refers in particular to a kind of automatic backwashing filter that is used for coal mine fully-mechanized mining working electricity hydraulic control hydraulic support.
Background technology
In the prior art, structure of filter is varied, as Chinese patent disclosed " a kind of backwash filter " (China with alarm function, ZL200920118960.2, open day 2010.3.10), it comprises draws together valve body, have inlet on the valve body, liquid outlet, left side leakage fluid dram, right leakage fluid dram, left element kit is installed in the valve body, right element kit, in the left side valve pocket of valve body left valve seat is housed, left side steel ball, left side joint, in the right side valve pocket of valve body right valve seat is housed, 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 following hollow sealing screw, last hollow sealing screw and following hollow sealing screw device taking alarm.At the used working media of hydraulic support hydraulic system is oil emulsion, because the colliery conditions down-hole is more abominable, unavoidably there is impurity, if these impurity in time can not be removed away, 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 subjected to due to subsurface environment, the space, after the plugged filter commonly used in the past, manually backwash or shutdown are cleaned, and can't determine when stop up, and the operating space requires bigger, has had a strong impact on Coal Production and safety.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned defective that prior art exists, and a kind of automatic backwashing filter is provided.
For achieving the above object, the solution that the utility model is taked is: a kind of automatic backwashing filter, it comprises valve body, choke plug, change the liquid plate, electromagnetic priority valve, having two identical valve pockets on the valve body is left and right sides working chamber, the valve body left side is drilled with inlet and leakage fluid dram, inlet and leakage fluid dram are connected with left and right sides working chamber, the valve body downside has the filter core chamber, left and right sides working chamber downside drills through with two apertures respectively with the filter core chamber and communicates, the main valve plug assembly is installed in the valve body, element kit, the fluid joint, valve pocket, spring, valve seat, guide pin bushing, spool, piston and screw plug are formed the main valve plug assembly by being threaded, the main valve plug assembly is made the as a whole plug connector valve pocket of packing into, be provided with the reinforcing spring in the element kit, pack into valve body downside and fixing with the fluid joint of element kit, electromagnetic priority valve adopts trip bolt two and trip bolt to fix by commentaries on classics liquid plate and valve body.
Its operation principle is: when the inlet feed liquor, liquid flows into the valve body cavity of resorption through the dowel hole of main valve plug assembly through spool bore, through liquid pass hole and element kit, flows into filter core chamber, a left side and right chamber, filter the back from the element kit endoporus by element kit, flow into each components and parts in the hydraulic bracket system.When needs recoiled cleaning to filter core when, system need not shut down, by the computer remote control that links to each other with electromagnetic priority valve.When needs clean the element kit left side, the energising of electromagnetic priority valve one working hole, pilot valve liquid is given left side main valve plug assembly through the choke plug feed flow, promotes piston and spool, and piston and valve seat are sealed, and spool and valve pocket form opened gap; Simultaneously, the liquid of element kit inner chamber through filter core left side from inner chamber to exocoel oppositely towards liquid, foul is discharged from leakage fluid dram through liquid pass hole and left hand valve in-core hole.Right side filter core back flush operation principle is identical with the left side operation principle.It is used for coal mine fully-mechanized mining working electricity hydraulic control hydraulic support.
Description of drawings
Fig. 1 is the left TV structure schematic diagram of present embodiment.
Fig. 2 is an A-A cutaway view among Fig. 1.
Fig. 3 is a B-B cutaway view among Fig. 1.
Among the figure: 1, valve body, 2, valve pocket, 3, spring, 4, valve seat, 5, guide pin bushing, 6, spool, 7, piston, 8, screw plug, 9, trip bolt one, 10, choke plug, 11, electromagnetic priority valve, 12, change the liquid plate, 13, trip bolt two, 14, plug, 15, left liquid pass hole, 16, right liquid pass hole, 17, element kit, 18, reinforce spring, 19, fluid joint, P, inlet, R, leakage fluid dram.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing thereof the utility model is remake description.
Referring to Fig. 1-Fig. 3, a kind of automatic backwashing filter, it comprises valve body 1, choke plug 10, change liquid plate 12, electromagnetic priority valve 11, having two identical valve pockets on the valve body 1 is left and right sides working chamber, valve body 1 left side is drilled with inlet P and leakage fluid dram R, inlet P and leakage fluid dram R are connected with left and right sides working chamber, valve body 1 downside has the filter core chamber, left and right sides working chamber downside drills through with two apertures respectively with the filter core chamber and communicates, the main valve plug assembly is installed in the valve body 1, element kit 17, fluid joint 19, valve pocket 2, spring 3, valve seat 4, guide pin bushing 5, spool 6, piston 7 and screw plug 8 are formed the main valve plug assembly by being threaded, the main valve plug assembly is made the as a whole plug connector valve pocket of packing into, be provided with in the element kit 17 and reinforce spring 18, element kit 17 valve body 1 downside and fixing with fluid joint 19 of packing into, electromagnetic priority valve 11 adopt trip bolts 2 13 and trip bolt 9 fixing with valve body 1 by changeing liquid plate 12.
Referring to Fig. 2, described two apertures are respectively left liquid pass hole 15 and right liquid pass hole 16.
Referring to Fig. 2, the plug 14 on the described electromagnetic priority valve 11 adopts aviation plug formula structure.
Referring to Fig. 2, described main valve plug assembly is fixed on the valve body 1 by head threads, and the main valve plug assembly is that integral plugged formula installation, maintenance is more convenient.
Referring to Fig. 3, about described element kit 17 is divided into two sections, and be that the plug-in structure is installed, convenient maintenance and replacement is quick, and inside is provided with and reinforces spring 18, improves element kit service life.
Claims (5)
1. automatic backwashing filter, it comprises valve body (1), choke plug (10), change liquid plate (12), electromagnetic priority valve (11), it is characterized in that: having two identical valve pockets on the valve body (1) is left and right sides working chamber, valve body (1) left side is drilled with inlet (P) and leakage fluid dram (R), inlet (P) and leakage fluid dram (R) are connected with left and right sides working chamber, valve body (1) downside has the filter core chamber, left and right sides working chamber downside drills through with two apertures respectively with the filter core chamber and communicates, valve body is equipped with the main valve plug assembly in (1), element kit (17), fluid joint (19), valve pocket (2), spring (3), valve seat (4), guide pin bushing (5), spool (6), piston (7) and screw plug (8) are formed the main valve plug assembly by being threaded, the main valve plug assembly is made the as a whole plug connector valve pocket of packing into, be provided with in the element kit (17) and reinforce spring (18), element kit (17) valve body (1) downside and fixing with fluid joint (19) of packing into, electromagnetic priority valve (11) adopts trip bolt two (13) and trip bolt (9) to fix with valve body (1) by changeing liquid plate (12).
2. automatic backwashing filter according to claim 1 is characterized in that: described two apertures are respectively left liquid pass hole (15) and right liquid pass hole (16).
3. automatic backwashing filter according to claim 1 is characterized in that: the plug (14) on the described electromagnetic priority valve (11) adopts aviation plug formula structure.
4. automatic backwashing filter according to claim 1 is characterized in that: described main valve plug assembly is fixed on the valve body (1) by head threads, and the main valve plug assembly is integral plugged formula.
5. automatic backwashing filter according to claim 1 is characterized in that: about described element kit is divided into two sections, and be the plug-in structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200153314U CN201930634U (en) | 2011-01-14 | 2011-01-14 | Automatic back washing filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200153314U CN201930634U (en) | 2011-01-14 | 2011-01-14 | Automatic back washing filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201930634U true CN201930634U (en) | 2011-08-17 |
Family
ID=44442175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200153314U Expired - Lifetime CN201930634U (en) | 2011-01-14 | 2011-01-14 | Automatic back washing filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201930634U (en) |
Cited By (4)
| 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 |
| CN103285646A (en) * | 2013-06-24 | 2013-09-11 | 山西平阳广日机电有限公司 | Automatic backwashing filter |
| CN104028021A (en) * | 2014-06-30 | 2014-09-10 | 山西平阳广日机电有限公司 | Manual back-flushing filter |
| CN105586096B (en) * | 2014-10-20 | 2018-08-17 | 航天长征化学工程股份有限公司 | Direct-acting type filtering device of gasification furnace pulverized coal conveying system |
-
2011
- 2011-01-14 CN CN2011200153314U patent/CN201930634U/en not_active Expired - Lifetime
Cited By (7)
| 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 |
| CN102100984B (en) * | 2011-01-14 | 2012-08-29 | 丰隆液压有限公司 | Automatic backwashing filter |
| CN103285646A (en) * | 2013-06-24 | 2013-09-11 | 山西平阳广日机电有限公司 | Automatic backwashing filter |
| CN103285646B (en) * | 2013-06-24 | 2015-09-16 | 山西平阳广日机电有限公司 | Automatic backwashing filter |
| CN104028021A (en) * | 2014-06-30 | 2014-09-10 | 山西平阳广日机电有限公司 | Manual back-flushing filter |
| CN104028021B (en) * | 2014-06-30 | 2016-08-31 | 山西平阳广日机电有限公司 | Manual backwashing filter device |
| CN105586096B (en) * | 2014-10-20 | 2018-08-17 | 航天长征化学工程股份有限公司 | Direct-acting type filtering device of gasification furnace pulverized coal conveying system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110817 Effective date of abandoning: 20120829 |