CN103463875A - Pulse-type drainage air filter - Google Patents
Pulse-type drainage air filter Download PDFInfo
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- CN103463875A CN103463875A CN2013103347438A CN201310334743A CN103463875A CN 103463875 A CN103463875 A CN 103463875A CN 2013103347438 A CN2013103347438 A CN 2013103347438A CN 201310334743 A CN201310334743 A CN 201310334743A CN 103463875 A CN103463875 A CN 103463875A
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Abstract
The invention discloses a pulse-type drainage air filter, comprising a filter body and a cup disposed on the filter body; a filter assembly fixedly connected with the filter body is arranged in the cup; the lower end of the cup is provided with a drainage passage; a pulse-type drainage mechanism is disposed in the cup; the pulse-type drainage mechanism comprises a piston seat fixedly installed in the cup and a piston slidingly arranged in the piston seat; a filtered water passage is disposed between the piston seat and the piston seat; one end of the piston protrudes out of the piston seat and abuts against the drainage passage; an air gap communicated with the inner cavity of the cup is disposed between the piston and the piston seat; and the piston and the piston seat cooperate to form a balance pressure chamber in the piston seat. The pulse-type drainage air filter described by the invention can realize pulse-type automatic drainage, is simple in structure, low in production cost and is convenient for disassembly and maintenance, and has relatively long service life.
Description
Technical field
The present invention relates to the pneumatic element technical field, especially relate to a kind of compressed-air filter with pulsed discharge structure.
Background technology
In the pneumatic element field, compressed-air filter is a kind of by the source of the gas treatment element of the moisture filter in compressed air discharge, and the compressed air humidity after processing reduces, and can prevent inner-walls of duct and the corrosion of gas control parts spool.Compressed-air filter mainly comprises filter body, filter core, water tumbler and drainage mechanism, filter body is provided with compressed air inlet and outlet, compressed air enters filter body inside from import, again after filter element filtering, dry air is discharged from outlet, the moisture that filter element filtering goes out is collected in water tumbler, and the water in water tumbler is finally discharged from drainage mechanism.
The drainage mechanism of common compressed-air filter has Manual draining valve, spring drainage mechanism and float-type automatic draining mechanism.
The manual drainage valve arrangement is the simplest, strikes out valve while needing draining with the hand, valve-off after drained water.Commonly used have knob small ball, a push button ejector pin valve etc.This class valve simplicity of design, as long as it is just passable to solve sealing problem.Hand-operated valve must manually-operated, must make regular check on water level draining in time.If draining is not in time, can cause secondary pollution, do not have water filtering function, this Manual draining valve cost is low, and draining is rapid, does not affect normal operation, but the manual maintenance cost is high.
The spring drainage mechanism, during without air pressure or utmost point low pressure, the draining of spring jack-up spool.When air pressure is arranged, spool is forced on the O RunddichtringO, stops draining.This spring drainage mechanism must be stopped the supple of gas or steam when draining, can only be used in the place that some can frequently be stopped the supple of gas or steam, and advantage is without Artificial Control, low cost of manufacture.
The float-type automatic draining mechanism, be provided with float in water tumbler, compressed-air actuated pressure is born in the float upper end, buoyancy of water is born in the float lower end, when the water level rising in water tumbler makes the lower end buoyancy of float be greater than end pressure, move on float and control and open discharge outlet, when water level decline makes the lower end buoyancy of float be less than upper end pressure, float moves down and controls discharge outlet and cuts out, thereby realizes Auto-drainage.This float-type automatic draining mechanism structure is more complicated, and service life is not long, and production cost is high, maintenance not easy to assemble.
The patent that is CN201361503Y as notification number discloses a kind of " differential pressure type automatic water drainer ", be provided with dish-shaped piston and piston rod in its water tumbler, the dish piston has the flange that downward folding turns over, piston rod is corresponding with the discharge outlet of water tumbler lower end, its operation principle is: dish-shaped piston top is source of the gas compressed air, dish piston bottom is sealed gas chamber, after having pneumatic element to start working in pneumatic control system, the pressure on dish piston top reduces, the dish piston moves under sealed gas chamber pressure promotes, and piston rod removes discharge outlet and carries out draining.This differential pressure type automatic water drainer adopts differential pressure type (pulsed) drainage principle, when dish-shaped piston is moved downward to the air pressure poised state under compressed-air actuated pressure-acting, the dish piston periphery flange that folding turns over downwards and water tumbler inwall close contact form sealing ring, the filtered water on dish piston top can't enter into the sealed gas chamber of bottom, the flexible flange design of this dish piston periphery causes it insensitive to air pressure change, while only having compressed-air actuated air pressure reduction when dish-shaped piston top larger, just can make to move on dish-shaped piston, its drainage effect is similar to the spring drainage mechanism, although this differential pressure type automatic water drainer is simple in structure, but this structure is difficult to implement and be applied on actual product.
Summary of the invention
The deficiency existed for above-mentioned prior art, purpose of the present invention will provide a kind of compressed-air filter with pulsed discharge structure, can realize the pulsed Auto-drainage, and simple in structure, production cost is low, is convenient to dismounting and safeguards, longer service life.
To achieve these goals, the technical solution adopted in the present invention is:
A kind of pulsed draining air cleaner, comprise filter body and be located at the water tumbler on filter body, be provided with the filter assemblies be fixedly connected with described filter body in water tumbler, the lower end of water tumbler is provided with drainage channel, is provided with the pulsed drainage mechanism in described water tumbler; Described pulsed drainage mechanism comprises that the piston seat and the slip that are fixedly installed in water tumbler are arranged at the piston in piston seat, be provided with the drainage passage between piston seat and water tumbler inwall, one end of piston stretches out in the piston seat outside and offsets with drainage channel, have the air gap communicated with the water tumbler inner chamber between piston and piston seat, piston matches and is formed with the equilibrium air pressure chamber in the inside of piston seat with piston seat.
Further, the lower end of described water tumbler is provided with perforate, be arranged with water drain valve core in perforate, described drainage channel vertically is arranged at the inside of water drain valve core, be formed with the passage that discharges water between the hole wall of water drain valve core and perforate, be arranged with the conical seal ring of the salable described passage that discharges water on water drain valve core, laterally be provided with the through hole that is communicated with described discharge water passage and described drainage channel in water drain valve core.The lower end of described water drain valve core is provided with flush handle, is provided with back-moving spring in flush handle.
Further, described filter assemblies comprises cyclone blade, filter core, water bloking piece and fixed bar, and water bloking piece is arranged at the lower end of fixed bar, and the upper end of fixed bar is fixedly connected with in filter body, filter core is sheathed on fixed bar by water bloking piece, and cyclone blade is sheathed on the outside of filter core.
Further, the upper end of described piston seat is provided with piston cap, is provided with filter in piston cap.Be provided with packing ring between described piston cap and described piston seat, the external diameter of packing ring and the internal diameter of water tumbler are complementary, and described drainage passage is located on the inwall of water tumbler.Further, the position offseted with drainage channel on described piston is provided with gasket seal.
Further, be provided with retainer spring between described piston cap and described filter assemblies.Upper end and the water bloking piece of described retainer spring offset, and lower end and piston cap offset.
Further, the scope of described air gap gap length is the 0.1-0.2 millimeter.
After adopting technique scheme, the advantage that compared to the prior art the present invention had is:
Pulsed draining air cleaner of the present invention, comprise filter body and be located at the water tumbler on filter body, filter body is provided with gas source inlet and source of the gas outlet, be provided with the filter assemblies be fixedly connected with described filter body in water tumbler, be provided with the pulsed drainage mechanism in water tumbler; Described pulsed drainage mechanism comprises that the piston seat and the slip that are fixedly installed in water tumbler are arranged at the piston in piston seat, be provided with the drainage passage between piston seat and water tumbler inwall, one end of piston stretches out in the piston seat outside and offsets with drainage channel, have the air gap communicated with the water tumbler inner chamber between piston and piston seat, piston matches and is formed with the equilibrium air pressure chamber in the inside of piston seat with piston seat.Compressed air enters in filter body from gas source inlet, after filtration after the assembly filtration treatment, dry compressed air is discharged for pneumatic control system from the source of the gas outlet, and the moisture in compressed air is collected the water tumbler bottom through the drainage passage, finally by the pulsed drainage mechanism, automatically discharges outside water tumbler.
The operation principle of the pulsed drainage mechanism of this pulsed draining air cleaner is: in compressed air enters into water tumbler, the air pressure on piston top is greater than the air pressure in the equilibrium air pressure chamber, piston is closely conflicted with the valve port of drainage channel under the effect of air pressure difference and self gravitation, and the blocking-up drainage channel, the compressed air on piston top enters into the equilibrium air pressure chamber from the air gap between piston and piston seat, until the air pressure on piston top equates with the air pressure in the equilibrium air pressure chamber, when pneumatic control system is brought into use source of the gas, the air pressure of gas outlet reduces, can form the stagnation of the circulation of vital energy because the air gap between piston and piston seat is minimum, make the air pressure on piston top be less than the air pressure in the equilibrium air pressure chamber, piston moves under the effect of pressure differential, piston breaks away from the valve port of drainage channel, drainage channel is in open mode, the water of water tumbler bottom under compressed-air actuated pressure-acting promptly outside drainage channel is discharged water tumbler, until the air pressure in the equilibrium air pressure chamber equates with the air pressure on piston top or the pressure on piston top is greater than the pressure in the equilibrium air pressure chamber, piston moves down with the valve port of drainage channel and offsets, and blocking-up drainage channel.When source of the gas of the every use of pneumatic control system, this pulsed drainage mechanism just carries out Auto-drainage one time, thereby realizes the draining of air cleaner pulsed.
Pulsed draining air cleaner of the present invention, adopt piston and piston seat to be engaged in the inner equilibrium air pressure chamber that forms of piston seat, the less air pressure change in piston top also can cause that the equilibrium air pressure chamber produces stagnation of the circulation of vital energy phenomenon, thereby carry out draining, and operation is more stable, it is simple in structure, production cost is low, be convenient to dismounting and safeguard that long service life more can be applicable to industrial production and be applied at pulsed draining air cleaner product scope.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1: sectional structure schematic diagram of the present invention.
Fig. 2: the local structure for amplifying schematic diagram in A place in Fig. 1.
In figure, 1: filter body; 2: gas source inlet; 3: fixed bar; 4: cyclone blade; 5: water tumbler; 6: filter core; 7: water bloking piece; 8: retainer spring; 9: piston cap; 10: filter; 11: packing ring; 12: piston seat; 13: piston; 14: gasket seal; 15: conical seal ring; 16: passage discharges water; 17: water drain valve core; 18:0 shape circle; 19: back-up ring; 20: flush handle; 21: back-moving spring; 22: drainage channel; 23: through hole; 24: perforate; 25: the drainage passage; 26: the equilibrium air pressure chamber; 27: the source of the gas outlet.
The specific embodiment
The following stated is only preferred embodiment of the present invention, does not therefore limit protection scope of the present invention.
Embodiment, see shown in Fig. 1 to Fig. 2: a kind of pulsed draining air cleaner, comprise filter body 1 and be located at the water tumbler 5 on filter body 1, water tumbler 5 is threaded closely with filter body 1, filter body 1 is provided with gas source inlet 2 and source of the gas outlet 27, be provided with the filter assemblies be fixedly connected with filter body 1 in water tumbler 5, be provided with the pulsed drainage mechanism in water tumbler 5.
Filter assemblies comprises cyclone blade 4, filter core 6, water bloking piece 7 and fixed bar 3, water bloking piece 7 is arranged at the lower end of fixed bar 3, the upper end of fixed bar 3 is fixedly connected with in filter body 1, and filter core 6 is sheathed on fixed bar 3 by water bloking piece 7, and cyclone blade 4 is sheathed on the outside of filter core 6.The effect of water bloking piece 7 is to prevent that the compressed air with profit or other impurity from entering in filter core 6 from the lower end of filter core 6.
Compressed air enters in filter body 1 from gas source inlet 2, breach through the tangential direction of cyclone blade 4 rotates strongly, liquid profit and solid contaminant in compressed air are subject to centrifugal action, be thrown on the sidewall of water tumbler 5, flow to water tumbler 5 bottoms along water tumbler 5 walls again, compressed air is discharged from source of the gas outlet 27 after filter core 6 filtration treatment, for pneumatic control system provides dry source of the gas.
The pulsed drainage mechanism comprises that the piston seat 12 and the slip that are fixedly installed in water tumbler 5 are arranged at the piston 13 in piston seat 12, be provided with drainage passage 25 between piston seat 12 and water tumbler 5 inwalls, one end of piston 13 stretches out in piston seat 12 outsides and offsets with drainage channel 22, have the air gap communicated with water tumbler 5 inner chambers between piston 13 and piston seat 12, piston 13 matches and is formed with equilibrium air pressure chamber 26 in the inside of piston seat 12 with piston seat 12.
The scope of the air gap gap length between piston 13 and piston seat 12 is the 0.1-0.2 millimeter, and the air pressure change of water tumbler 5 inner chambers makes equilibrium air pressure chamber 26 produce stagnation of the circulation of vital energy phenomenon.The described stagnation of the circulation of vital energy refers to: when the air pressure of water tumbler 5 inner chambers changes, compressed air passes in and out equilibrium air pressure chamber 26 by air gap so that the air pressure in equilibrium air pressure chamber 26 and the air pressure of water tumbler 5 inner chambers reach the time-lag effect that poised state has.Air gap gap length in the present embodiment is 0.1 millimeter.The length that the gap length of change air gap can be regulated the stagnation of the circulation of vital energy time, the air gap gap length is crossed conference and is caused equilibrium air pressure chamber 26 to be connected with water tumbler 5 inner chambers, like this air pressure change of water tumbler 5 inner chambers can not make equilibrium air pressure chamber 26 produce stagnation of the circulation of vital energy phenomenons or the stagnation of the circulation of vital energy time shorter, can not reach the purpose of abundant draining; The too small meeting of air gap gap length causes stagnation of the circulation of vital energy overlong time, cause a large amount of compressed air to be discharged from drainage channel 22, the waste source of the gas, and also the too small assembly precision of part that causes of air gap gap length is difficult to control, the processing and manufacturing cost is higher, also more easily stops up and causes this pulsed drainage mechanism to lose efficacy.
The upper end of piston seat 12 is provided with piston cap 9, be arranged with filter 10 in piston cap 9, the effect of filter 10 is to filter and enters into the compressed air in equilibrium air pressure chamber 26 by air gap from water tumbler 5 inner chambers, prevent that profit and impurity particle in compressed air from stopping up air gap, to ensure the normal operation of this pulsed drainage mechanism.Stroke lower end and the drainage channel 22 of piston 13 offset, and upper end and piston cap 9 offset, and stroke distances L is 1.2 millimeters.
Be provided with packing ring 11 between piston cap 9 and piston seat 12, the internal diameter of the external diameter of packing ring 11 and water tumbler 5 is complementary.When compressed air enters from gas source inlet 2, packing ring 11 in pressed status, firmly is placed in water tumbler 5 bottoms thereby make piston seat 12 bear downforce under compressed-air actuated effect.
The position offseted with drainage channel 22 on piston 13 is provided with gasket seal 14, and piston 13 moves up and down the valve port that makes gasket seal 14 open or block drainage channel 22, and gasket seal 14 effects are to play sealing function when piston 13 and drainage channel 22 offset.
Be provided with retainer spring 8 between piston cap 9 and water bloking piece 7, retainer spring 8 applies downward elastic pressure to piston cap 9, make piston seat 12 can firmly be arranged at the water tumbler bottom, guarantee that this pulsed draining air cleaner can effective orientation assemble in assembling, transportation and use procedure.
Further, the lower end of water tumbler 5 is provided with perforate 24, be arranged with water drain valve core 17 in perforate 24, drainage channel 22 vertically is arranged at the inside of water drain valve core 17, be formed with the passage 16 that discharges water between the hole wall of water drain valve core 17 and perforate 24, be arranged with the conical seal ring 15 of the salable described passage 16 that discharges water on water drain valve core 17, the interior through hole 23 that is communicated with described discharge water passage 16 and described drainage channel 22 that laterally is provided with of water drain valve core 17.The lower end of water drain valve core 17 is provided with flush handle 20, is provided with back-moving spring 21 in flush handle 20.
The effect that the footpath of water drain valve core 17 upwards is sheathed on O shape circle 18, O shape circle 18 is to play sealing function when water drain valve core 17 moves up and down in hole clipping.The lower end of water tumbler 5 is provided with back-up ring 19, the two ends of back-moving spring 21 offset with back-up ring 19 and flush handle 20 respectively, flush handle 20 is subject to the downward elastic force of back-moving spring 21, due to flush handle 20 and fixedly clamping of water drain valve core 17, make water drain valve core 17 be subject to downward pulling force, and then make will the discharge water sealing valve port of passage 16 of conical seal ring 15 stop up.Water drain valve core 17, flush handle 20 and back-moving spring 21 form manual drainage mechanism.During manual drainage, by flush handle 20 jack-up upwards, drive on water drain valve core 17 and move, make conical seal ring 15 break away from the passage 16 that discharges water, now the profit in water tumbler 5 and impurity can be discharged outside water tumbler 5 through the passage 16 that discharges water, through hole 23 and drainage channel 22 successively under compressed-air actuated pressure-acting.Unclamp flush handle 20, flush handle 20 moves down under back-moving spring 21 elastic force effects, drives water drain valve core 17 and moves down, and makes will the discharge water sealing valve port of passage 16 of conical seal ring 15 stop up, thereby completes manual drainage.
The shared drainage channel 22 of being located at water drain valve core 17 inside of pulsed drainage mechanism described in the present embodiment and described manual drainage mechanism carries out draining, and it is simple in structure, is skillfully constructed.When the pulsed drainage mechanism lost efficacy, can use manual drainage mechanism to carry out draining, to ensure the normal operation of pneumatic control system.
Claims (9)
1. a pulsed draining air cleaner, comprise filter body (1) and be located at the water tumbler (5) on filter body (1), be provided with the filter assemblies be fixedly connected with described filter body (1) in water tumbler (5), the lower end of water tumbler (5) is provided with drainage channel (22), it is characterized in that: described water tumbler is provided with the pulsed drainage mechanism in (5);
Described pulsed drainage mechanism comprises that the piston seat (12) and the slip that are fixedly installed in water tumbler (5) are arranged at the piston (13) in piston seat (12), be provided with drainage passage (25) between piston seat (12) and water tumbler (5) inwall, one end of piston (13) stretches out in piston seat (12) outside and offsets with drainage channel (22), have the air gap communicated with water tumbler (5) inner chamber between piston (13) and piston seat (12), piston (13) matches and is formed with equilibrium air pressure chamber (26) in the inside of piston seat (12) with piston seat (12).
2. pulsed draining air cleaner according to claim 1, it is characterized in that: the lower end of described water tumbler (5) is provided with perforate (24), be arranged with water drain valve core (17) in perforate (24), described drainage channel (22) vertically is arranged at the inside of water drain valve core (17), be formed with the passage that discharges water (16) between the hole wall of water drain valve core (17) and perforate (24), be arranged with the conical seal ring (15) of the salable described passage that discharges water (16) on water drain valve core (17), laterally be provided with the through hole (23) that is communicated with the described passage that discharges water (16) and described drainage channel (22) in water drain valve core (17).
3. pulsed draining air cleaner according to claim 2, it is characterized in that: the lower end of described water drain valve core (17) is provided with flush handle (20), is provided with back-moving spring (21) in flush handle (20).
4. pulsed draining air cleaner according to claim 1, it is characterized in that: the upper end of described piston seat (12) is provided with piston cap (9), is provided with filter (10) in piston cap (9).
5. pulsed draining air cleaner according to claim 4, is characterized in that: be provided with retainer spring (8) between described piston cap (9) and described filter assemblies.
6. pulsed draining air cleaner according to claim 1, it is characterized in that: described filter assemblies comprises cyclone blade (4), filter core (6), water bloking piece (7) and fixed bar (3), water bloking piece (7) is arranged at the lower end of fixed bar (3), the upper end of fixed bar (3) is fixedly connected with in filter body (1), it is upper that filter core (6) is sheathed on fixed bar (3) by water bloking piece (7), and cyclone blade (4) is sheathed on the outside of filter core (6).
7. pulsed draining air cleaner according to claim 1, it is characterized in that: the scope of described air gap gap length is the 0.1-0.2 millimeter.
8. pulsed draining air cleaner according to claim 1 is characterized in that: the upper and position that drainage channel (22) offsets of described piston (13) is provided with gasket seal (14).
9. pulsed draining air cleaner according to claim 4, it is characterized in that: between described piston cap (9) and described piston seat (12), be provided with packing ring (11), the internal diameter of the external diameter of packing ring (11) and water tumbler (5) is complementary, and described drainage passage (25) is located on the inwall of water tumbler (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310334743.8A CN103463875B (en) | 2013-08-02 | 2013-08-02 | Pulse-type drainage air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310334743.8A CN103463875B (en) | 2013-08-02 | 2013-08-02 | Pulse-type drainage air filter |
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| Publication Number | Publication Date |
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| CN103463875A true CN103463875A (en) | 2013-12-25 |
| CN103463875B CN103463875B (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310334743.8A Active CN103463875B (en) | 2013-08-02 | 2013-08-02 | Pulse-type drainage air filter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180531A (en) * | 2015-09-24 | 2015-12-23 | 绍兴君奇汽配有限公司 | Automatic water drainage and condensation drier |
| CN107243212A (en) * | 2017-07-01 | 2017-10-13 | 宁波全盛世纪气动科技有限公司 | A kind of filter |
| CN111841191A (en) * | 2020-06-29 | 2020-10-30 | 浙江固特气动科技股份有限公司 | Compressed air filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201361503Y (en) * | 2009-02-23 | 2009-12-16 | 竺开明 | Differential pressure type automatic water drainer |
| WO2011145979A1 (en) * | 2010-05-19 | 2011-11-24 | Dyblenko Valeriy Petrovich | Method for treating a productive formation and borehole equipment for the implementation of same |
| CN102813597A (en) * | 2012-08-10 | 2012-12-12 | 朱正元 | Multifunctional health-preserving rehabilitation physiotherapy instrument |
| CN203400586U (en) * | 2013-08-02 | 2014-01-22 | 宁波市华益气动工程有限公司 | Impulse-type water draining air filter |
-
2013
- 2013-08-02 CN CN201310334743.8A patent/CN103463875B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201361503Y (en) * | 2009-02-23 | 2009-12-16 | 竺开明 | Differential pressure type automatic water drainer |
| WO2011145979A1 (en) * | 2010-05-19 | 2011-11-24 | Dyblenko Valeriy Petrovich | Method for treating a productive formation and borehole equipment for the implementation of same |
| CN102813597A (en) * | 2012-08-10 | 2012-12-12 | 朱正元 | Multifunctional health-preserving rehabilitation physiotherapy instrument |
| CN203400586U (en) * | 2013-08-02 | 2014-01-22 | 宁波市华益气动工程有限公司 | Impulse-type water draining air filter |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180531A (en) * | 2015-09-24 | 2015-12-23 | 绍兴君奇汽配有限公司 | Automatic water drainage and condensation drier |
| CN105180531B (en) * | 2015-09-24 | 2018-02-02 | 绍兴君奇汽配有限公司 | Auto-drainage condensate dryer |
| CN107243212A (en) * | 2017-07-01 | 2017-10-13 | 宁波全盛世纪气动科技有限公司 | A kind of filter |
| CN107243212B (en) * | 2017-07-01 | 2023-01-06 | 宁波全盛世纪气动科技有限公司 | Filter |
| CN111841191A (en) * | 2020-06-29 | 2020-10-30 | 浙江固特气动科技股份有限公司 | Compressed air filter |
| CN111841191B (en) * | 2020-06-29 | 2021-09-28 | 浙江固特气动科技股份有限公司 | Compressed air filter |
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| Publication number | Publication date |
|---|---|
| CN103463875B (en) | 2014-12-17 |
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