CN103623630A - Full-automatic high-pressure back-flushing filtering station - Google Patents
Full-automatic high-pressure back-flushing filtering station Download PDFInfo
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- CN103623630A CN103623630A CN201310637110.4A CN201310637110A CN103623630A CN 103623630 A CN103623630 A CN 103623630A CN 201310637110 A CN201310637110 A CN 201310637110A CN 103623630 A CN103623630 A CN 103623630A
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Abstract
The invention discloses a full-automatic high-pressure back-flushing filtering station which comprises a liquid inlet device, a spherical stop valve, a main filtering body and a liquid outlet device which are connected sequentially, wherein the main filtering body comprises a filter element, an electromagnetic pilot valve and a main filter element; the main filter element adopts an alternate valve; a branch pipe is led out from the connection pipeline of the main filtering body and the liquid outlet device; the branch pipe is communicated with the control opening of the main filter element through the electromagnetic pilot valve; in the working state, the liquid inlet device is communicated with the liquid outlet device through one passage of the main filter element and the filter element sequentially; in the back flushing state, the liquid outlet device is communicated with a sewage discharge opening through the filer element and the other passage of the main filter element sequentially. According to the differential pressure of the inlet and the outlet, the back flushing is performed on the filter element according to the predetermined process, so that impurities attached to the outer surface of the filer element can be removed timely, and the labor intensity of workers is reduced.
Description
Technical field
The present invention relates to the hydraulic filtering station of comprehensive mining hydraulic bracket under a kind of coal mine, relate in particular to a kind of full-automatic high-pressure backwash filter station.
Background technology
The Hydraulic Elements of comprehensive mining hydraulic bracket under coal mine, be in coal dust high pollution environment, hydraulic system emulsion is very easily subject to coal ash, dust pollution, cause heel and toe wear or damage to each seal of hydraulic system, cause hydraulic system unit time internal fault to take place frequently, to fully-mechanized mining equipment, normal operation causes great harm.Therefore, the working media in hydraulic system source need be filtered, make working media when entering next stage element system, the cleannes of working media are improved significantly, for system element secondary filter and working condition create good conditions.
Backwash filter station of the prior art generally adopts manual control.Manual backwashing filter station need to manually be pulled backwash filter handle and be carried out backwash, restriction due to down-hole manipulation space and working environment, this is by increase operating personnel's at double labour intensity, affect its comprehensive efficiency of adopting, simultaneously its security, reliability are not high, have potential potential safety hazard.
Summary of the invention
The object of this invention is to provide that a kind of safety and reliability is high, labour intensity is low, be convenient to realize the full-automatic high-pressure backwash filter station that automation is controlled.
The object of the invention is to be achieved through the following technical solutions:
Full-automatic high-pressure backwash filter station of the present invention, comprise the feeding device, ball check valve, filtration main body, the liquid discharge device that connect successively, described feeding device is communicated with inlet, described liquid discharge device is communicated with working hole, described filtration main body comprises filter core, electromagnetic priority valve, main valve plug, and described main valve plug is alternate valve;
On connecting line between described filtration main body and liquid discharge device, draw arm, this arm is communicated with the control mouth of described main valve plug by described electromagnetic priority valve;
Under duty, described feeding device is communicated with described liquid discharge device by a path, the filter core of described main valve plug successively;
Under backwash state, described liquid discharge device is communicated with sewage draining exit by another path of described filter core, main valve plug successively.
As seen from the above technical solution provided by the invention, the full-automatic high-pressure backwash filter station that the embodiment of the present invention provides, comprises filter core, electromagnetic priority valve, main valve plug owing to filtering main body, and main valve plug is alternate valve; Filter on the connecting line between main body and liquid discharge device and draw arm, this arm is communicated with the control mouth of main valve plug by electromagnetic priority valve; Under duty, feeding device is communicated with liquid discharge device by a path, the filter core of described main valve plug successively; Under backwash state, liquid discharge device is communicated with sewage draining exit by another path of described filter core, main valve plug successively, can, according to the pressure reduction of importing and exporting, according to preset program, automatically to filter core, carry out backwash, get rid of in time the impurity that is attached to filter core outer surface, reduce workman's labour intensity.
Accompanying drawing explanation
The general structure schematic diagram of the full-automatic high-pressure backwash filter station that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is an assembly structure cross-sectional schematic of filtering main body in the present invention;
Fig. 3 is the main valve plug structure cross-sectional schematic in the present invention;
Fig. 4 is pilot circuit partial schematic sectional view in the present invention;
Fig. 5 is the fundamental diagram of the embodiment of the present invention.
In Fig. 1: 01, erecting bed, 02, feeding device, 03, ball check valve, 04, tube connector, 05, filter main body, 06, accumulator, 07, liquid discharge device, 08, power supply, 09, controller;
In Fig. 2: 1, filter core, 2, filtration barrel body, 3, electromagnetic priority valve, 4, oil return cutout valve, 5, main valve plug, 6, filter station main valve body, 7, sewage draining exit;
In Fig. 3: 5-1, spring base, 5-2, valve pocket, 5-3, spring, 5-4, spool (diameter is Φ 26mm), 5-5, sealing gasket, 5-6, adapter sleeve, 5-7, push rod, 5-8, spring, 5-9, screw plug, 5-10, guide pin bushing (diameter is Φ 30mm), 5-11, back-up ring (being mainly used in connecting push rod 5-7 and guide pin bushing 5-10).
The specific embodiment
To be described in further detail the embodiment of the present invention below.
Full-automatic high-pressure backwash filter station of the present invention, its preferably the specific embodiment be:
Comprise the feeding device, ball check valve, filtration main body, the liquid discharge device that connect successively, described feeding device is communicated with inlet, described liquid discharge device is communicated with working hole, and described filtration main body comprises filter core, electromagnetic priority valve, main valve plug, and described main valve plug is alternate valve;
On connecting line between described filtration main body and liquid discharge device, draw arm, this arm is communicated with the control mouth of described main valve plug by described electromagnetic priority valve;
Under duty, described feeding device is communicated with described liquid discharge device by a path, the filter core of described main valve plug successively;
Under backwash state, described liquid discharge device is communicated with sewage draining exit by another path of described filter core, main valve plug successively.
Also comprise controller, described feeding device and liquid discharge device are respectively equipped with pressure sensor, and described pressure sensor and described electromagnetic priority valve are electrically connected to described controller respectively.
The return line of described electromagnetic priority valve is provided with oil return cutout valve.
The exit of this filter station is provided with accumulator.
This filter station comprises that two covers filter main body, and two covers filter main body and are arranged on same fluid proportion plate.
Full-automatic high-pressure backwash filter station of the present invention, carries out single filter to the working media of down-hole combined mining working, guarantees the cleannes of working media, improves the service life of related components.According to the pressure reduction of importing and exporting, according to preset program, automatically filter core is rinsed simultaneously, get rid of in time the impurity that is attached to filter core outer surface, reduce workman's labour intensity.
Specific embodiment:
As shown in Figures 1 to 5:
Described filtration main body 05 is provided with inlet, working hole, sewage draining exit, in described filtration main body 05, is provided with main valve plug 5, and described main valve plug 5 is provided with controls mouth;
Inlet is connected with working hole by described feeding device 02, ball check valve 03, filtration main body 05 successively;
Under normal operating conditions, described automatic high pressure backwash filter station inlet communicates with working hole by described feeding device, ball valve, filtration main body successively, and described working hole and the described path of controlling between mouth are cut off, and described sewage draining exit is closed;
Under backwash state, described working hole and the described path of controlling between mouth are opened, and described inlet is closed, and described working hole communicates with described sewage draining exit by described filtration main body successively.
The operation principle of this full-automatic high-pressure backwash filter station is as follows:
Under normal operation, highly pressurised liquid is through inlet P, and feeding device 02 punishment in Fig. 1 is two-way feed liquor, and this two-way feed liquor is just the same at the process Program of whole filtration, therefore only need to any road feed liquor wherein be described.Now take Tu5Zhong Zuo road describes as example.
Feed liquor is through after feeding device 02, flow through ball check valve 03 in Fig. 1, tube connector 04 arrives and filters main body 05, after main valve plug 5 and filter core 1 in Fig. 2, and the liquid discharge device 07 place's bout in Fig. 1, after filtering, reach working hole A, complete the feed flow of hydraulic system.From working hole A channel, draw highly pressurised liquid and enter the electromagnetic priority valve 3 in Fig. 2, during in order to recoil, use simultaneously.After the pressure difference value of inlet pressure and working hole reaches the pre-value of program setting, the control mouth K of electromagnetic priority valve 3 conducting main valve plugs 5 and the path between working hole A, make push rod 5-7 promote spool 5-4 together with guide pin bushing 5-10, and Compress Spring 5-3 moves to left, passage between inlet P and filter core 1 is cut off, open the passage between filter core 1 and sewage draining exit R simultaneously, realize the backwash of hydraulic system.
As shown in Fig. 2, Fig. 4 and Fig. 5, in order to prevent the anti-control mouth that flows to main valve plug in raffinate process pilot valve loop of sewage draining exit, disturb the normal operation of filter station, oil return cutout valve 4(check valve is housed on the return line of electromagnetic priority valve 3).
Full-automatic high-pressure backwash filter station of the present invention adopts Automatic Control, has saved heavy manual operation, and strict programme-control simultaneously is more conducive to the stability of system; When two groups of filter cores of this full-automatic high-pressure backwash filter station are worked, adopt same fluid proportion plate directly to distribute feed liquor, so just avoided because too much fluid pressure line annex connects the caused pressure loss, contributed to the accurate pressure of importing and exporting of judging, blowdown in time; The exit of this full-automatic high-pressure backwash filter station is equipped with two accumulators, its function is because of some under irresistible External force interference factor in system, when the pressure of system is about to occur fluctuation, accumulator absorbs or liquid make-up in time, maintains the stable of system; This full-automatic high-pressure backwash filter stands on the loop of electromagnetic priority valve and is provided with plug-in oil return cutout valve, and easy to maintenance, its effect is to prevent that the impurity in loop is back in the working chamber of pilot valve, affects its normal operation; The tube connector of this full-automatic high-pressure backwash filter station all adopts simple and easy plug-in mounting to be threaded.When filter station breaks down need to overhaul time, the locking nut that only need to turn on tube connector two ends is detachable tube connector, is convenient to dismounting, maintenance.
The above; be only the present invention's specific embodiment preferably, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (5)
1. a full-automatic high-pressure backwash filter station, comprise the feeding device, ball check valve, filtration main body, the liquid discharge device that connect successively, described feeding device is communicated with inlet, described liquid discharge device is communicated with working hole, it is characterized in that, described filtration main body comprises filter core, electromagnetic priority valve, main valve plug, and described main valve plug is alternate valve;
On connecting line between described filtration main body and liquid discharge device, draw arm, this arm is communicated with the control mouth of described main valve plug by described electromagnetic priority valve;
Under duty, described feeding device is communicated with described liquid discharge device by a path, the filter core of described main valve plug successively;
Under backwash state, described liquid discharge device is communicated with sewage draining exit by another path of described filter core, main valve plug successively.
2. full-automatic high-pressure backwash filter station according to claim 1, it is characterized in that, also comprise controller, described feeding device and liquid discharge device are respectively equipped with pressure sensor, and described pressure sensor and described electromagnetic priority valve are electrically connected to described controller respectively.
3. full-automatic high-pressure backwash filter station according to claim 2, is characterized in that, the return line of described electromagnetic priority valve is provided with oil return cutout valve.
4. according to the full-automatic high-pressure backwash filter station described in claim 1,2 or 3, it is characterized in that, the exit of this filter station is provided with accumulator.
5. according to the full-automatic high-pressure backwash filter station described in claim 1,2 or 3, it is characterized in that, this filter station comprises that two covers filter main body, and two covers filter main body and are arranged on same fluid proportion plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310637110.4A CN103623630A (en) | 2013-12-02 | 2013-12-02 | Full-automatic high-pressure back-flushing filtering station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310637110.4A CN103623630A (en) | 2013-12-02 | 2013-12-02 | Full-automatic high-pressure back-flushing filtering station |
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| Publication Number | Publication Date |
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| CN103623630A true CN103623630A (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310637110.4A Pending CN103623630A (en) | 2013-12-02 | 2013-12-02 | Full-automatic high-pressure back-flushing filtering station |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105148587A (en) * | 2015-09-10 | 2015-12-16 | 宁波长壁流体动力科技有限公司 | High-pressure backwashing filter |
| CN107917120A (en) * | 2017-11-03 | 2018-04-17 | 北京天地玛珂电液控制系统有限公司 | A kind of type pilot solenoid directional control valve |
| WO2021109649A1 (en) * | 2019-12-03 | 2021-06-10 | 浙江中煤机械科技有限公司 | Liquid supply system for emulsion pump station |
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| CN201963641U (en) * | 2011-03-14 | 2011-09-07 | 三一重型综采成套装备有限公司 | On-line automatic backwash filter |
| DE102010044169A1 (en) * | 2010-11-19 | 2012-05-24 | Mahle International Gmbh | hydraulic filters |
| CN102996578A (en) * | 2012-10-17 | 2013-03-27 | 宁波长壁流体动力科技有限公司 | High-pressure back-wash filter station |
| CN203017842U (en) * | 2012-11-29 | 2013-06-26 | 唐山开滦广汇设备制造有限公司 | Back-flushing filter station |
| CN203591630U (en) * | 2013-12-02 | 2014-05-14 | 中煤北京煤矿机械有限责任公司 | Fully-automatic high-pressure back washing filtering station |
-
2013
- 2013-12-02 CN CN201310637110.4A patent/CN103623630A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010044169A1 (en) * | 2010-11-19 | 2012-05-24 | Mahle International Gmbh | hydraulic filters |
| CN201963641U (en) * | 2011-03-14 | 2011-09-07 | 三一重型综采成套装备有限公司 | On-line automatic backwash filter |
| CN102996578A (en) * | 2012-10-17 | 2013-03-27 | 宁波长壁流体动力科技有限公司 | High-pressure back-wash filter station |
| CN203017842U (en) * | 2012-11-29 | 2013-06-26 | 唐山开滦广汇设备制造有限公司 | Back-flushing filter station |
| CN203591630U (en) * | 2013-12-02 | 2014-05-14 | 中煤北京煤矿机械有限责任公司 | Fully-automatic high-pressure back washing filtering station |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105148587A (en) * | 2015-09-10 | 2015-12-16 | 宁波长壁流体动力科技有限公司 | High-pressure backwashing filter |
| CN107917120A (en) * | 2017-11-03 | 2018-04-17 | 北京天地玛珂电液控制系统有限公司 | A kind of type pilot solenoid directional control valve |
| WO2021109649A1 (en) * | 2019-12-03 | 2021-06-10 | 浙江中煤机械科技有限公司 | Liquid supply system for emulsion pump station |
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Application publication date: 20140312 |