CN201433946Y - Automatic unloading and self cleaning filter for emulsion pump station - Google Patents
Automatic unloading and self cleaning filter for emulsion pump station Download PDFInfo
- Publication number
- CN201433946Y CN201433946Y CN2009200470196U CN200920047019U CN201433946Y CN 201433946 Y CN201433946 Y CN 201433946Y CN 2009200470196 U CN2009200470196 U CN 2009200470196U CN 200920047019 U CN200920047019 U CN 200920047019U CN 201433946 Y CN201433946 Y CN 201433946Y
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- 239000000839 emulsion Substances 0.000 title claims abstract description 34
- 238000004140 cleaning Methods 0.000 title claims abstract description 22
- 238000001914 filtration Methods 0.000 claims description 12
- 210000003746 feather Anatomy 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The utility model relates to an automatic unloading and self cleaning filter for an emulsion pump station, which comprises an inlet pressure meter, a high-pressure energy accumulator, an unloading valve, an inlet pressure sensor, a one-way valve, an outlet pressure meter, a ball valve, an outlet pressure sensor, connecting pipe fittings and an electric control system, wherein a low-pressure energyaccumulator is arranged at an inlet connected with the emulsion pump station, one or a plurality of fine filters are connected in parallel on pipelines communicated to an emulsion supply system, a two-position four-way hydraulic reversing valve is respectively connected on an inlet passage of each fine filter, a two-position three-way electromagnetic valve is respectively connected in series in acontrol oil passage of each two-position four-way hydraulic reversing valve, a flow sensor is respectively arranged on oil inlet pipelines of each two-position four-way hydraulic reversing valve, each two-position four-way hydraulic reversing valve and oil return ports of the corresponding two-position three-way electromagnetic valve are connected with a coarse filter through pipelines, and the coarse filter is connected with an oil tank. The utility model has the advantages of simple structure, high reliability, small system pressure compact, low vibration, low noise, convenient use and easymaintenance.
Description
Technical field
The utility model relates to emulsion power pack unloading and self-cleaning filter device automatically, is particularly useful for mine fully mechanized mining face support hydraulic system.
Background technique
Emulsion power pack is the power unit of mine fully mechanized mining face support hydraulic system, and the quality of its performance is directly connected to the benefit and the Security of Coal Production.At present, also there is the deficiency of following several respects in emulsion power pack: the filter filter precision that (1) is disposed is low, is difficult to satisfy the correlation technique standard-required from the turbidity test of the emulsified liquid of pumping plant output, has a strong impact on the functional reliability of support hydraulic system; (2) filter element that is disposed is easy to stop up, and in case stop up not easy cleaning, has both influenced the service behaviour of support hydraulic system, also because of must dismounting, clean or more renew cartridge influence ordinary production; (3) even be configured the emulsion power pack of back-flushing filtering device, still do not reach gratifying effect yet, as: the stopping state that is difficult to determine to be equiped with 2 single filters in the above filter, the chocking-up degree of display filter directly perceived, there is not the warning function of obstruction, the automaticity of backwash control is low, adaptability to the emulsion power pack output flow is strong inadequately (as: for the small pumping station of only installing 1 filter, can't realize backwash filter), make the effect of self-cleaning and efficient all not ideal enough because of the flow of backwash is little, be not easy to damage the replacing of filter core, the emulsified liquid that backwash is discharged is not utilized effectively, even befouling environment, flow through solenoid directional control valve and easily cause its spool clamping stagnation and cause the backwashing function forfeiture from being cleaned backwash is got off on the filter core dirt, or the like; (4) emulsion power pack that has is not provided with automatic unloading and pressurizer, and this had both wasted the energy, makes system cause dependent failure because of heating again, can't adopt existing back-flushing filtering device thereon simultaneously yet; (5) though the emulsion power pack that has has adopted from the Unloading Technology measure, also can not get effective control for vibration under low pressure and the unloading situation and noise.
Summary of the invention
Technical problem: the purpose of this utility model provides a kind of compact structure, and functional reliability is strong, is difficult for stopping up, and backwash effect is good, is easy to safeguard that energy-conservation emulsion power pack is unloading and self-cleaning filter device automatically.
Technological scheme: automatic unloading of the present utility model and self-cleaning filter device, include the mouth pressure table, high pressure accumulator, feather valve, inlet pressure transducer, one-way valve, delivery gauge, ball valve, outlet pressure sensor, each connection pipe fitting and automatical control system are provided with low pressure accumulator in the ingress that links to each other with emulsion power pack, are parallel with one or more fine filters on the pipeline of liquid-supplying system leading to, one or many fine filters all and be connected to an one-way valve are connected with the one or more two-position four-way hydraulicchange-over valves that communicate with its outlet loop respectively on the access of one or more fine filters; Be serially connected with one or more two-position three way magnetic valves in the control oil channel of one or more two-position four-way hydraulicchange-over valves respectively; Be equipped with a flow transducer on the filler opening pipeline of one or more two-position four-way hydraulicchange-over valves; One or more two-position four-way hydraulicchange-over valves are connected a coarse-grain filtering device that links to each other with fuel tank with the return opening of pairing one or more two-position three way magnetic valves by pipeline.
Also be parallel with differential pressure gauge and filter core on the pipeline of the described one or more fine filters that are arranged in parallel and stop up Protective valve; The filter precision of described one or more fine filters is about 10 μ.
Beneficial effect: the utility model can be provided with one or more fine filters according to the rated flow size of emulsion pump output flow and selected filter core.When only being provided with a fine filter, can finish the backwash of fine filter by a two-position four-way hydraulic operated valve and two-position three way magnetic valve, after the dirt that washes is implemented to filter, be recycled.When being provided with a plurality of fine filter, the flow of back flush can be regulated and control as required, can finish the backwash of fine filter respectively through a plurality of two-position four-way hydraulic operated valves and a plurality of two-position three way magnetic valve.When only cleaning one of them fine filter, then the emulsified liquid behind other filter element filtering all together reverse flow cross this filter core it implemented back flush, at this moment the backwash flow is big, flow velocity is high, can effectively improve the turbidity test of emulsion power pack output emulsified liquid.By the signal of flow transducer output, whether automatical control system can need to clean to each fine filter is carried out the intellectuality decision-making, and implements automatic cleaning control and warning according to the automatic start-up routine of decision situation.Owing to be provided with low pressure accumulator in the ingress, when emulsion pump is worked under low working pressure, low pressure accumulator works, and can both obviously reduce compression shock, vibration and noise in whole range of working pressure, improves the environmental protection and energy saving of emulsion power pack; Thereby can greatly improve the reliability of fully mechanized mining face support hydraulic system, the turbidity test of the emulsified liquid of exporting and the maintenance side of filter core expense property fundamentally improve the emulsion power pack environmental protection and energy saving.It is simple in structure, and reliability height, system pressure impact are little, and vibration and noise are low, easy to use, is easy to maintenance, has practicability widely.
Description of drawings
Fig. 1 is the structural representation of automatic unloading of the utility model emulsion power pack and self-cleaning filter device.
Among the figure: the 1-low pressure accumulator; 2-inlet pressure table; The 3-high pressure accumulator; 4,11,15,17-solenoid directional control valve; The 5-flow transducer; 6,10,13,16-hydraulicchange-over valve; The 7-fine filter; The 8-one-way valve; The 9-delivery gauge; The 12-ball valve; The 14-outlet pressure sensor; The 18-differential pressure gauge; The 19-filter core stops up Protective valve; The 20-coarse-grain filtering device; The 21-inlet pressure transducer; The 22-feather valve.
Embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
Automatic unloading of the present utility model is communicated with the outlet of emulsion power pack with the self-cleaning filter device inlet, and outlet is communicated with support hydraulic system; With entrance pipe that emulsion power pack links to each other on be connected with low pressure accumulator 1, feather valve 22, inlet pressure table 2, high pressure accumulator 3 and inlet pressure transducer 21 in turn, wherein feather valve 22 is made up of a main valve, a pilot valve and an one-way valve.Leading to difference one or more fine filters 7 in parallel on the pipeline of support hydraulic system, differential pressure gauge 18 and filter core obstruction Protective valve 19, the outlet port is provided with outlet pressure sensor 14, delivery gauge 9 and closes the ball valve 12 of path.Wherein the number of fine filter 7 settings is relevant with the size of the required flow of support hydraulic system, size according to the rated flow of the size of emulsion pump output flow and selected filter, the fine filter 7 of requirement is set, example shown in the drawings is four, be connected with on 6,10,13,16, four fine filter 7 outlet loops of four two-position four-way hydraulicchange-over valves that communicate with its outlet loop all and be connected to an one-way valve 8 on the access of four fine filters 7 respectively; Be serially connected with two-position three way magnetic valve 4,11,15,17 in the control oil channel of four two-position four-way hydraulicchange-over valves 6,10,13,16 respectively, a flow transducer 5 all is housed on the filler opening pipeline of each two-position four-way hydraulicchange-over valve; Four two-position four-way hydraulicchange-over valves link to each other with coarse-grain filtering device 20 by pipeline with the return opening of four two-position three way magnetic valves; Get back to fuel tank through coarse-grain filtering device 20.The overall stopping state of each fine filter 7 both can intuitively show by differential pressure gauge 18 or pressure gauge 2,9, also can obtain by the force value of automatical control system collection and analysis inlet pressure transducer 21 and outlet pressure sensor 14; Serious situation about stopping up occurs for the some filters in a plurality of fine filters, can obtain by the output signal that contrasts its corresponding flow sensor and other flow transducer; Whether automatical control system can need to clean to fine filter 7 is carried out the intellectuality decision-making, and implements automatic cleaning control and warning according to the automatic start-up routine of decision situation; In addition, automatical control system also can be implemented the timing automatic cleaning control to fine filter.Filter core stops up 19 pairs of fine filters of Protective valve and plays the safety protection effect; if automatical control system can not be implemented self-cleaning control for some reason; and when each filter core stops up a degree; filter core stops up Protective valve 19 and opens voluntarily; play preventing that fine filter 7 is excessive and impaired because of pressure reduction, also can in a period of time, guarantee the proper functioning of support hydraulic system on the other hand.
Working principle and working procedure: the liquid entering hole of this device and the outlet of emulsion power pack are coupled together, and liquid outlet and support hydraulic system couple together, and ball valve 12 is opened fully.When the support hydraulic system working pressure reached feather valve 22 setting pressures, the pilot valve of feather valve 22 and main valve were opened successively and are made the unloading of emulsion pumping plant, and one-way valve wherein and high pressure accumulator 3 maintain the pressure of support hydraulic system; When making system pressure drop to a certain degree owing to the need of work of support hydraulic system or because of internal leakage, feather valve 22 cuts out voluntarily, the emulsified liquid that emulsion pump pumps carries out fluid infusion to high pressure accumulator 3, after each fine filter 7 filters, supplies with support hydraulic system simultaneously.When emulsion pump was worked under low working pressure, low pressure accumulator 1 worked, and guarantees that system pressure impact is little, and vibration and noise are low.The emulsion pump output flow is relevant with the rated flow size of smart filter for molten 7, if only be provided with a fine filter, then also only is provided with a two-position four-way hydraulic operated valve 6 and a two-position three way magnetic valve 4 with it accordingly; When automatical control system make two-position three way magnetic valve 4 when electric, the emulsified liquid with certain pressure enters the hydraulic control mouth of two-position four-way hydraulic operated valve 6, its spool is moved and commutates; At this moment, the liquid entering hole of fine filter 7 is connected with coarse-grain filtering device 20 by two-position four-way hydraulic operated valve 6, cleaning reclaim line, the emulsified liquid that comes from emulsion pump or accumulator then enters its filter core through two-position four-way hydraulic operated valve 6, one-way valve 8 from the liquid outlet of fine filter 7, behind the back flush filter core, enter coarse-grain filtering device 20 from its liquid return hole outflow and through cleaning reclaim line, after the dirt enforcement filtration of washing, be recycled.When being provided with a plurality of fine filter 7, it is basic identical to clean principle and a fine filter 7, just the flow of back flush can be regulated and control as required, during filter core in only cleaning a plurality of fine filters 7, then through the emulsified liquid behind other filter element filtering all together reverse flow cross this filter core it implemented back flush, at this moment the backwash flow is big, flow velocity is high; If clean a plurality of filter cores simultaneously, then the flow of back flush reduces relatively.In the time need changing to the filter core of fine filter 7, at first close emulsion power pack, secondly ball valve 12 is closed fully, this device and support hydraulic system are separated, start the pressure in the self-cleaning function release accumulator 3 then, the force value of guaranteeing pressure gauge 2,9,18 indications is zero.
Claims (3)
1, a kind of emulsion power pack is unloading and self-cleaning filter device automatically, include mouth pressure table (2), high pressure accumulator (3), feather valve (22), inlet pressure transducer (21), one-way valve (8), delivery gauge (9), ball valve (12), outlet pressure sensor (14), each connection pipe fitting and automatical control system, it is characterized in that: be provided with low pressure accumulator (1) in the ingress that links to each other with emulsion power pack, be parallel with one or more fine filters (7) on the pipeline of liquid-supplying system leading to, one or many fine filters (7) all and be connected to an one-way valve (8) are connected with the one or more two-position four-way hydraulicchange-over valves that communicate with its outlet loop respectively on the access of one or more fine filters (7); Be serially connected with one or more two-position three way magnetic valves in the control oil channel of one or more two-position four-way hydraulicchange-over valves respectively; Be equipped with a flow transducer (5) on the filler opening pipeline of one or more two-position four-way hydraulicchange-over valves; One or more two-position four-way hydraulicchange-over valves are connected a coarse-grain filtering device that links to each other with fuel tank (20) with the return opening of pairing one or more two-position three way magnetic valves by pipeline.
2, emulsion power pack according to claim 1 unloads and self-cleaning filter device automatically, it is characterized in that: also be parallel with differential pressure gauge (18) and filter core on the pipeline of the described one or more fine filters (7) that are arranged in parallel and stop up Protective valve (19).
3, emulsion power pack according to claim 1 and 2 unloads and self-cleaning filter device automatically, and it is characterized in that: the filter precision of described one or more fine filters (7) is about 10 μ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200470196U CN201433946Y (en) | 2009-07-07 | 2009-07-07 | Automatic unloading and self cleaning filter for emulsion pump station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200470196U CN201433946Y (en) | 2009-07-07 | 2009-07-07 | Automatic unloading and self cleaning filter for emulsion pump station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201433946Y true CN201433946Y (en) | 2010-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200470196U Expired - Lifetime CN201433946Y (en) | 2009-07-07 | 2009-07-07 | Automatic unloading and self cleaning filter for emulsion pump station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201433946Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072224A (en) * | 2011-01-28 | 2011-05-25 | 浙江中煤矿业有限公司 | High and low-pressure backwashing filter device for hydraulic bracket |
| CN102400695A (en) * | 2011-12-02 | 2012-04-04 | 辽宁工程技术大学 | Intelligent anti-impact bracket device |
| CN103047228A (en) * | 2012-12-20 | 2013-04-17 | 三一重型装备有限公司 | Backwash filter device and working face hydraulic system |
| CN103148058A (en) * | 2013-02-28 | 2013-06-12 | 中国矿业大学 | Liquid phase distribution self-cleaning device for emulsion pump station |
| CN108757596A (en) * | 2018-08-28 | 2018-11-06 | 朋仁锋 | A kind of safety protecting method of underground coal mine explosion-proof vehicle |
| CN109026857A (en) * | 2018-08-28 | 2018-12-18 | 朋仁锋 | A kind of underground coal mine explosion-proof vehicle accumulator automatic relief arrangement |
| CN109114058A (en) * | 2018-09-13 | 2019-01-01 | 北京天地玛珂电液控制系统有限公司 | The discharge mechanism of hydraulic system |
| CN109372733A (en) * | 2018-09-13 | 2019-02-22 | 北京天地玛珂电液控制系统有限公司 | The control system of the multistage off-load of centralization based on more pumping plant parallel connection liquid-supplying systems |
| CN109372734A (en) * | 2018-09-13 | 2019-02-22 | 北京天地玛珂电液控制系统有限公司 | Liquid-supplying system based on more pumping plants |
| CN114087249A (en) * | 2021-11-18 | 2022-02-25 | 国能神东煤炭集团有限责任公司 | Electro-hydraulic pressure control system and control method |
| CN115263821A (en) * | 2022-06-24 | 2022-11-01 | 湘潭大学 | Centrifugal pump pipeline system with suction inlet filter screen backwashing function and using method |
-
2009
- 2009-07-07 CN CN2009200470196U patent/CN201433946Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072224A (en) * | 2011-01-28 | 2011-05-25 | 浙江中煤矿业有限公司 | High and low-pressure backwashing filter device for hydraulic bracket |
| CN102400695A (en) * | 2011-12-02 | 2012-04-04 | 辽宁工程技术大学 | Intelligent anti-impact bracket device |
| CN103047228A (en) * | 2012-12-20 | 2013-04-17 | 三一重型装备有限公司 | Backwash filter device and working face hydraulic system |
| CN103047228B (en) * | 2012-12-20 | 2015-06-10 | 三一重型装备有限公司 | Backwash filter device and working face hydraulic system |
| CN103148058A (en) * | 2013-02-28 | 2013-06-12 | 中国矿业大学 | Liquid phase distribution self-cleaning device for emulsion pump station |
| CN103148058B (en) * | 2013-02-28 | 2015-04-29 | 中国矿业大学 | Liquid phase distribution self-cleaning device for emulsion pump station |
| CN108757596A (en) * | 2018-08-28 | 2018-11-06 | 朋仁锋 | A kind of safety protecting method of underground coal mine explosion-proof vehicle |
| CN109026857A (en) * | 2018-08-28 | 2018-12-18 | 朋仁锋 | A kind of underground coal mine explosion-proof vehicle accumulator automatic relief arrangement |
| CN109114058A (en) * | 2018-09-13 | 2019-01-01 | 北京天地玛珂电液控制系统有限公司 | The discharge mechanism of hydraulic system |
| CN109372733A (en) * | 2018-09-13 | 2019-02-22 | 北京天地玛珂电液控制系统有限公司 | The control system of the multistage off-load of centralization based on more pumping plant parallel connection liquid-supplying systems |
| CN109372734A (en) * | 2018-09-13 | 2019-02-22 | 北京天地玛珂电液控制系统有限公司 | Liquid-supplying system based on more pumping plants |
| CN114087249A (en) * | 2021-11-18 | 2022-02-25 | 国能神东煤炭集团有限责任公司 | Electro-hydraulic pressure control system and control method |
| CN114087249B (en) * | 2021-11-18 | 2023-05-26 | 国能神东煤炭集团有限责任公司 | Electrohydraulic pressure control system and control method |
| CN115263821A (en) * | 2022-06-24 | 2022-11-01 | 湘潭大学 | Centrifugal pump pipeline system with suction inlet filter screen backwashing function and using method |
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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: 20100331 Effective date of abandoning: 20090707 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100331 Effective date of abandoning: 20090707 |