CN103244693A - Abrasion-proof exhaust valve - Google Patents
Abrasion-proof exhaust valve Download PDFInfo
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- CN103244693A CN103244693A CN2012102861453A CN201210286145A CN103244693A CN 103244693 A CN103244693 A CN 103244693A CN 2012102861453 A CN2012102861453 A CN 2012102861453A CN 201210286145 A CN201210286145 A CN 201210286145A CN 103244693 A CN103244693 A CN 103244693A
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Abstract
The invention relates to an abrasion-proof exhaust valve, and relates to the technical field of system control. The abrasion-proof exhaust valve comprises a valve body, a cylinder block and a valve flap. The valve flap is connected with a valve rod in the cylinder block. One end of the cylinder block is provided with a valve cap. A seal ring, sleeved outside the valve flap, and filling materials are arranged at the inner end of the valve cap. A first connecting port is arranged at the other end of the valve body and is connected with a seal positioning ring in a pressing manner. A seal pad is arranged at the outer end of the seal positioning ring. A cone-shaped end of the valve flap is inserted into the seal pad and the seal positioning ring. One end of the valve rod penetrates through the cone-shaped end of the valve flap and connected to a guiding frame at the outer end of the seal pad. A gas seal ring is arranged between the guiding frame and the seal pad. A plane of the gas seal ring, in contact with the cone-shaped end of the valve flap, is provided with an annular groove, and the opening of the annular groove faces to the valve flap. A through hole is arranged inside the side wall of the gas seal ring. One end of the through hole is connected with the annular groove, and the end of the through hole is provided with a fourth connecting port. By the aid of the abrasion-proof exhaust valve, abrasion of seal working planes of the valve flap and the seal pad by dust and gas is prevented effectively, service life of the valve is prolonged, and is more than one year.
Description
Technical field
The present invention relates to system control technique field, especially a kind of abrasionproof outlet valve.
Background technique
It is existing that general what use is the rubber seal outlet valve be used to being installed in outlet valve on the strength transfer pump storehouse, as Fig. 1, the rubber seal outlet valve mainly contains valve body 101, flap 103, leading truck 112, sealing gasket 111, seal retainer ring 110, filler 107, pressure cap 108, seal ring 106, valve gap 105, valve rod 104, spring 114, cylinder block 102, cylinder head 115, piston 116, piston locating pad 117 is formed, this outlet valve has three interfaces, first interface 109 is connected with the pump storehouse by flange, second interface 113 is connected with the pipeline of dust collector by flange, the 3rd interface 118 is connected with pressurized gas by high pressure hose, during work, the Hysteresis for Pneumatic Control Valves pressurized gas pressurizes or fast evacuation to cylinder block fast by the 3rd interface, when the pressurized gas of cylinder block during by the Hysteresis for Pneumatic Control Valves fast evacuation, valve rod is under the elastic force effect of spring, move to the cylinder head direction, drive with its flap that links together and move together, the tapered end of flap and sealing and fixing loop contacts are then, the conical surface of flap is pressed onto the sealing surface of sealing gasket, and this moment, outlet valve was in closed condition; When the pressurized gas of cylinder block is pressurizeed fast by pneumatic control valve, piston is compressed the effect of gas, overcome the elastic force effect of valve rod spring, to leaving the motion of cylinder head direction, drive with its flap that links together and move together, the tapered end of flap leaves the sealing surface of sealing gasket, and when piston moved to the piston locating pad, this moment, outlet valve was in full open position; At this moment, the passage of the gas in the pump storehouse by the outlet valve open position enters valve body and enters dust collector from second interface by the dust collector connecting tube again, is discharged in the atmosphere at last.The Sealing that filler, pressure cap, seal ring, valve gap, valve rod are formed prevents that outlet valve dusty gas when open mode is discharged in the atmosphere; There is following problem in such rubber seal outlet valve:
1, the sealing gasket of rubber seal outlet valve is subjected to flap percussion back and forth after starting a period of time, can the small surface of appearance slowly at the position that contacts with the flap surface comes off or defective such as crackle; The strength transfer pump is when the pumping granular material, outlet valve is in closed condition, when there is foregoing defective in the rubber ring of outlet valve, the pressure that the pump storehouse includes dust is that the high pressure dust concentration gas of 0.3～0.4 Mpa will pass the clearance channel that the defective between flap surface and the sealing gasket contact face forms and washes away flap and sealing gasket at a high speed, flap and sealing gasket are under the effect of the high dust concentration gas of high pressure, can be worn and damage very soon, cause the outlet valve operational failure;
2, when pump storehouse internal pressure is lower than 0.12Mpa, stop conveying material, open outlet valve this moment, the moment that Ventilating valve is just being opened, the slit is little between flap and the sealing gasket, pump storehouse internal pressure be 0.12Mpa dusty gas with high flow velocities by between flap and the rubber gasket than the passage of small gap, directly wash away the sealed working face of flap and sealing gasket, comparatively fast just be worn and damage, cause the outlet valve operational failure.
Such rubber seal outlet valve valve working life only is 10 days, by Tungsten carbite is mixed on the flap surface, heat-treats then, and surface hardness is reached more than the HRc50, and the life-span is no more than 20 days.
Summary of the invention
The invention provides a kind of abrasionproof outlet valve, it can solve existing outlet valve flap and sealing gasket damages the problem that causes valve weak point in working life easily.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: it includes valve body, the cylinder block that is connected with this valve body, stretch into the flap in the described valve body, valve rod in described flap and the described cylinder block is connected, described valve body is provided with valve gap with the end that described cylinder block is connected, this valve gap the inner is provided with seal ring and filler, described seal ring and described filler are enclosed within outside the described flap, the described valve body the other end is first interface that is connected with the pump storehouse, this first interface is crimped with seal retainer ring, outer end at described seal retainer ring is provided with sealing gasket, the tapered end of described flap interts in described sealing gasket and seal retainer ring, described valve rod has an end to pass in the tapered end of described flap and is connected with the leading truck that is contained in described sealing gasket outer end, the bottom of described valve body is provided with second interface that is connected with the dust collector pipeline, be provided with the sealing gland ring between described leading truck and the described sealing gasket, this sealing gland ring is fixed on the flange of described first interface, described sealing gland ring is provided with seal groove with the face that described flap tapered end contacts, the sealing groove is circular groove, this circular groove opening is towards described flap, be provided with through hole in the sidewall of described sealing gland ring, described through hole one end is communicated with described circular groove, and the other end is the 4th interface that is connected with the pressurized gas pipeline.
Further: facing to leaving the gap between the face of described flap and the described flap, this clearance distance is L to described circular groove near the side of described leading truck one side, and L is 0.3～0.5mm.
Owing to adopted technique scheme, the present invention compared with prior art has following beneficial effect:
1, owing at first interface sealing gland ring is housed, the face that the sealing gland ring contacts with the flap tapered end is provided with opening towards the seal groove of flap, be provided with through hole in the sidewall of sealing gland ring, through hole one end is communicated with circular groove, the other end is the 4th interface that is connected with the pressurized gas pipeline, be that the pressurized gas pipeline of 0.7Mpa is connected by the 4th interface and pressure, when the strength transfer pump is worked, the seal groove of sealing gland ring is full of pressurized gas, the pressure of pressurized gas is greater than dusty gas pressure in the pump, prevent that effectively dusty gas enters in the seal groove of seal ring in the pump, can prevent effectively that dusty gas is to the wearing and tearing of the sealed working face of flap and sealing gasket, prolong the working life of valve, reach working life more than 1 year.
2; since seal groove near the side of leading truck one side facing to leaving the gap between the face of flap and the flap; when stopping conveying material; open outlet valve; the moment that Ventilating valve is just being opened; the slit is little between flap and the sealing gasket; the pressurized gas of sealing gland still reaches balance at this moment; dusty gas can't enter the sealed working face between flap and the sealing gasket at once; when outlet valve arrived certain aperture, dusty gas could be realized degassing function by outlet valve, and the slit is bigger between flap and the sealing gasket at this moment; when dusty gas passes through; flow velocity can reduce greatly, has slowed down the wearing and tearing of dusty gas to flap and sealing gasket, has further protected flap and sealing gasket.
Description of drawings
Fig. 1 is the structural representation of the rubber seal outlet valve of prior art.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the A place enlarged view of Fig. 2.
Embodiment
Below in conjunction with the accompanying drawing example, the invention will be further described:
Present embodiment as shown in Figure 2, it includes valve body 1, the cylinder block 2 that is connected with this valve body, stretch into the flap 3 in the valve body 1, valve rod 4 in flap 3 and the cylinder block 2 is connected, the end that valve body 1 is connected with cylinder block 2 is provided with valve gap 5, this valve gap the inner is provided with seal ring 6 and filler 7, between seal ring 6 and the filler 7 pressure cap 8 is arranged, seal ring 6, filler 7 and pressure cap 8 are enclosed within outside the flap 3, valve body 1 the other end is first interface 9 that is connected with the pump storehouse, this first interface is crimped with seal retainer ring 10, be provided with sealing gasket 11 in the outer end of seal retainer ring 10, the tapered end of flap 3 interts in sealing gasket 11 and seal retainer ring 10, valve rod 4 has an end to pass in the tapered end of flap 3 and is connected with the leading truck 12 that is contained in sealing gasket 11 outer ends, the bottom of valve body 1 is provided with second interface 13 that is connected with the dust collector pipeline, be provided with sealing gland ring 14 between leading truck 12 and the sealing gasket 11, this sealing gland ring is fastened on the flange of first interface by bolt, sealing gland ring 14 is provided with seal groove with the face that flap 3 tapered ends contact, the sealing groove is circular groove 15, this circular groove opening is towards flap 3, be provided with through hole 16 in the sidewall of sealing gland ring 14, one end of through hole 16 is communicated with circular groove 15, the other end is the 4th interface 17 that is connected with the pressurized gas pipeline, circular groove near the side of leading truck 12 1 sides facing to leaving gap 18 between the face of flap 3 and the flap 3, this clearance distance L is 0.4mm, the 4th interface 17 and pressure are that the pressurized gas pipeline of 0.7Mpa is connected, mounting ball valve on the pipeline can be closed source of the gas when strength is carried air pump inoperative; During the work of strength transfer pump, this outlet valve is in closed condition, ball valve is opened, the seal groove that guarantees the sealing gland ring is full of pressurized gas, the pressure of pressurized gas is 0.7 Mpa, gas pressure greater than dust 0.3Mpa in the pump, pressurized gas enters in the pump by the gap of leaving between circular groove 15 sides and the flap 3, prevent that effectively dusty gas enters in the seal groove 15 of sealing gland ring 14 in the pump, even sealing gasket is after starting a period of time, be subjected to flap percussion back and forth, the position that contacts with flap surface can the small surface of appearance slowly come off or the situation of defective such as crackle under, as long as the slit that defective produces is not more than the breathing area in gap, pressurized gas still plays the effect of sealing gland, prevents that effectively dusty gas is to the wearing and tearing of the sealed working face of flap and sealing gasket; When pump storehouse internal pressure is lower than 0.12Mpa, stop conveying material, open outlet valve this moment, the moment that Ventilating valve is just being opened, the slit is little between flap and the sealing gasket, the pressurized gas of sealing gland still reaches balance at this moment, dusty gas can't enter the sealed working face between flap and the sealing gasket at once, when outlet valve arrives certain aperture, dusty gas could be realized degassing function by outlet valve, and the slit is bigger between flap and the sealing gasket at this moment, when dusty gas passes through, flow velocity can reduce greatly, has slowed down the wearing and tearing of dusty gas to flap and rubber gasket.
Claims (2)
1. abrasionproof outlet valve, include valve body, the cylinder block that is connected with this valve body, stretch into the flap in the described valve body, valve rod in described flap and the described cylinder block is connected, described valve body is provided with valve gap with the end that described cylinder block is connected, this valve gap the inner is provided with seal ring and filler, described seal ring and described filler are enclosed within outside the described flap, the described valve body the other end is first interface that is connected with the pump storehouse, this first interface is crimped with seal retainer ring, outer end at described seal retainer ring is provided with sealing gasket, the tapered end of described flap interts in described sealing gasket and seal retainer ring, described valve rod has an end to pass in the tapered end of described flap and is connected with the leading truck that is contained in described sealing gasket outer end, the bottom of described valve body is provided with second interface that is connected with the dust collector pipeline, it is characterized in that: be provided with the sealing gland ring between described leading truck and the described sealing gasket, this sealing gland ring is fixed on the flange of described first interface, described sealing gland ring is provided with seal groove with the face that described flap tapered end contacts, the sealing groove is circular groove, this circular groove opening is towards described flap, be provided with through hole in the sidewall of described sealing gland ring, described through hole one end is communicated with described circular groove, and the other end is the 4th interface that is connected with the pressurized gas pipeline.
2. abrasionproof outlet valve according to claim 1 is characterized in that: facing to leaving the gap between the face of described flap and the described flap, this clearance distance is L to described circular groove near the side of described leading truck one side, and L is 0.3～0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286145.3A CN103244693B (en) | 2012-08-13 | 2012-08-13 | Abrasion-proof exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286145.3A CN103244693B (en) | 2012-08-13 | 2012-08-13 | Abrasion-proof exhaust valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103244693A true CN103244693A (en) | 2013-08-14 |
| CN103244693B CN103244693B (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210286145.3A Active CN103244693B (en) | 2012-08-13 | 2012-08-13 | Abrasion-proof exhaust valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872111A (en) * | 2017-03-31 | 2017-06-20 | 桂林电子科技大学 | A kind of tap seepage quality detection device for meeting industrial engineering |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0417877A1 (en) * | 1989-07-21 | 1991-03-20 | Cooper Industries, Inc. | Shearing gate valve |
| CN2314168Y (en) * | 1997-07-16 | 1999-04-14 | 吴晓平 | Gas exhaust valve with wear resistant porcelain lining |
| CN201858364U (en) * | 2010-11-16 | 2011-06-08 | 常新华 | Convenient exhaust valve |
| CN202065485U (en) * | 2011-05-16 | 2011-12-07 | 浙江精杰自动化仪表阀股份有限公司 | Dusty gas decompression control valve |
| CN202768866U (en) * | 2012-08-13 | 2013-03-06 | 广西鱼峰水泥股份有限公司 | Anti-abrasion vent valve |
-
2012
- 2012-08-13 CN CN201210286145.3A patent/CN103244693B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0417877A1 (en) * | 1989-07-21 | 1991-03-20 | Cooper Industries, Inc. | Shearing gate valve |
| CN2314168Y (en) * | 1997-07-16 | 1999-04-14 | 吴晓平 | Gas exhaust valve with wear resistant porcelain lining |
| CN201858364U (en) * | 2010-11-16 | 2011-06-08 | 常新华 | Convenient exhaust valve |
| CN202065485U (en) * | 2011-05-16 | 2011-12-07 | 浙江精杰自动化仪表阀股份有限公司 | Dusty gas decompression control valve |
| CN202768866U (en) * | 2012-08-13 | 2013-03-06 | 广西鱼峰水泥股份有限公司 | Anti-abrasion vent valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872111A (en) * | 2017-03-31 | 2017-06-20 | 桂林电子科技大学 | A kind of tap seepage quality detection device for meeting industrial engineering |
| CN106872111B (en) * | 2017-03-31 | 2023-09-08 | 桂林电子科技大学 | Water tap leakage quality detection device conforming to industrial engineering |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103244693B (en) | 2016-02-24 |
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