CN101502828B - Sealing system of mechanical rapping apparatus - Google Patents
Sealing system of mechanical rapping apparatus Download PDFInfo
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- CN101502828B CN101502828B CN200910060868XA CN200910060868A CN101502828B CN 101502828 B CN101502828 B CN 101502828B CN 200910060868X A CN200910060868X A CN 200910060868XA CN 200910060868 A CN200910060868 A CN 200910060868A CN 101502828 B CN101502828 B CN 101502828B
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- piston
- ring
- sealing
- rapping apparatus
- mechanical rapping
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Abstract
The invention discloses a sealing system of a mechanical vibrator, comprising a filter, a sealing ring mounted on a piston close to one end of a trip rod, a piston ring sleeved on the piston, and guide rings mounted on a piston rod close to one end of a cylinder in a piston guide barrel. A gasket is mounted on the piston guide barrel between two guide rings, the piston guide barrel close to a spring base and a guide ring end is provided with a hole. The hole communicates with exterior of the mechanical vibrator and the interior of the piston guide barrel to form an air inlet communicating with an air source. The advantages of the invention are that the working pressure of a sealing element is reduced and frication between the piston rod and the piston position is reduced, as the sealing system of the mechanical vibrator brings in gas sealing; synchronously, the invention further brings in a gas leakage alarm device and monitors the sealing system of the mechanical vibrator in real time. The integral sealing structure of the system is rationally designed and has low cost. The service life of the sealing element is long and the sealing system is used in the working condition that the mechanical vibrator works at high temperature, under high pressure and with dusty medium.
Description
Technical field
The present invention relates to the sealing system of a kind of mechanical rapping apparatus, particularly a kind of mechanical rapping apparatus.
Background technology
In the industrial production, mechanical rapping apparatus has obtained extensive promotion and application because of effectively having solved coal gasifier dust stratification problem at present.Mechanical rapping apparatus running environment complexity, the sealing property of its moving link is most important, whether the sealing quality can directly have influence on mechanical rapping apparatus can even running, the crucial Sealing Technology of mechanical rapping apparatus is to the piston rod that transmits the trip rod energy and the Sealing Technology at piston circumference place, the trip rod of mechanical rapping apparatus and cylinder transmit bar and generally are designed to one in the prior art, the two finishes the rapping action by moving back and forth significantly, solving this class, to move back and forth the sealing problem of member significantly very difficult, because the relative displacement between this operating mode lower seal element contact sealing surface is bigger, can create conditions to the coarse place leaking medium on the composition surface; On the other hand, because mechanical rapping apparatus operates mainly under the abominable chemical environment such as HTHP, many dirt medium, make to the realization of the reciprocating motion significantly excellent sealing of piston rod difficult more.My unit has applied for " mechanical rapping apparatus " patent in 2005, number of patent application is CN200510018677.9, the technical scheme that this patent adopts is: the rapping executing agency of mechanical rapping apparatus is divided into two parts of piston rod that trip rod has reached the energy transfer function, the two all transmits bar with cylinder and separates, adopt spring to guarantee piston rod and trip rod simultaneously, closely contact between trip rod and the equipment for gasification inwall, the kinetic energy that cylinder sends transmits the pole pair piston rod by cylinder and produces impact, piston rod passes to trip rod with kinetic energy again, last trip rod produces rapping to equipment for gasification, avoided the reciprocating motion significantly of trip rod and piston rod to occur, realized the significantly reciprocating motion of mechanical rapping apparatus piston rod is converted into the micro-displacement reciprocating motion.But, the novel mechanical vibrator technology in this technical scheme, the seal aspect in micro-displacement reciprocating motion operating mode also is weak, and therefore, the sealing problem that the present invention is directed to the novel mechanical vibrator proposes the perfect sealing system of mechanical rapping apparatus of a cover.
Summary of the invention
Problem to be solved by this invention is to propose a kind of sealing system of mechanical rapping apparatus that can well solve the mechanical rapping apparatus sealing problem at above-mentioned prior art.
The present invention is adopted solution to be by the problem of the above-mentioned proposition of solution: sealing system of mechanical rapping apparatus, comprise the filter that is installed on the piston waveguide tube trip rod before, be installed near the sealing ring on the piston of trip rod one end, be sleeved on the piston ring on the piston, be installed in the piston waveguide tube near two and plural lead ring on the piston rod of cylinder one end, on the piston waveguide tube between two lead rings, lining ring is installed, its structural feature is: described mechanical rapping apparatus also is included at the bottom of the close spring base and the piston waveguide tube open interior of lead ring end, this hole and mechanical rapping apparatus outside and piston waveguide tube internal communication form air inlet, and air inlet is communicated with source of the gas.
In mechanical rapping apparatus, set up the air inlet that source of the gas is connected, and with air inlet be arranged near at the bottom of the spring base with the piston waveguide tube of lead ring end in, with piston waveguide tube inside and mechanical rapping apparatus exterior, feed the gas of certain pressure like this from air inlet, concrete force value is fixed according to operating mode, gas enters piston waveguide tube inside, mechanical rapping apparatus inside is formed air seal, to reduce the pressure that sealing elements therein is born, pressure that sealing ring bears is reduced to from the interior pressure of vaporising device feeds press in gas pressure and the vaporising device poor, the lining ring place is born pressure and is become pressure reduction between gas pressure and atmospheric pressure, thereby the life-span of the interior potted component of raising sealing system, improved the reliability of sealing.
Described gas pressure from air inlet feeding gas is the high 0.5～0.6Mpa of ratio vapourization equipment internal pressure.
Described source of the gas is a nitrogen.
Described mechanical rapping apparatus also includes the gas warning device that leaks outside, and the described gas warning device that leaks outside is provided with two pressure sensors, is arranged in piston sleeve, the air inlet.
The gas warning device that leaks outside is arranged in the force value that determination of pressure sensor piston sleeve and piston space in the piston sleeve leans on position, trip rod one side space, gas another determination of pressure sensor that warning device is arranged in the air inlet place that leaks outside feeds the nitrogen gas pressure value from air inlet, pressure sensor institute measuring pressure value in being arranged in piston sleeve gas when being arranged in the force value that air inlet place pressure sensor surveyed warning device that leaks outside is reported to the police automatically, by increasing the nitrogen pressure that feeds air inlet sealing system of mechanical rapping apparatus is carried out ftercompction simultaneously, realization is monitored in real time to the sealing system safe condition, prevents the generation that leaks outside of vaporising device internal gas.
Described filter is made up of compacting ring, threaded connector, filter, sleeve, filter pore, by threaded connector compacting ring, filter are fixed on the sleeve, it is installed on the piston waveguide tube trip rod before, the filter pore is communicated with by filter with vaporising device inside in the sleeve, then directly is communicated with piston sleeve inside.
Under the duty, dusty gas in the equipment for gasification filters behind the dust via filter and enters slit between piston rod and piston space, piston and piston sleeve along filter pore in the sleeve, guarantee that trip rod is identical with the vaporising device internal pressure with the pressure of piston rod contact position, prevent that trip rod or piston rod from producing " locking " phenomenon because of the immense pressure difference.
Described sealing ring is a y-type seal ring, and it matches with rectangle groove on the piston.
Described y-type seal ring forms the type self-fastening sealing structure of energizing at piston with between piston sleeve, can produce the self-tightening effect under the duty, to improve the sealing effectiveness of y-type seal ring between piston and piston sleeve; Piston ring set is contained in the centre position of piston, piston is played the role of positioning, and form a seal structures between piston and piston sleeve.
Described lining ring is made up of slip ring and O RunddichtringO, and it is installed in the rectangle groove on the piston waveguide tube between the lead ring.
Lining ring forms a seal structures between piston rod and piston waveguide tube, the big characteristics of O RunddichtringO pretightning force wherein make lining ring big to the pretightning force that piston rod produces, and pressurized can produce the self-tightening effect under the duty, thereby can between piston waveguide tube and piston rod, reach good sealing effectiveness, the characteristics that the slip ring coefficient of friction is low, make that the friction between lining ring and the piston rod is also very little, the low friction requirement when effectively satisfying piston rod transmission energy.
In sum, the invention has the beneficial effects as follows: the present invention has introduced air seal in the sealing system of mechanical rapping apparatus, thus reduced potted component operating pressure, reduced the friction of piston rod and piston place sealing; The present invention has simultaneously also introduced the gas warning device that leaks outside, realized the real-time monitoring to sealing system of mechanical rapping apparatus, the entire system design of Sealing Structure is reasonable, and is with low cost, the long service life of potted component is suitable for using under mechanical rapping apparatus HTHP and the many dirt medium operating mode.
Description of drawings
Fig. 1 is the structure cutaway view of the embodiment of the invention.
Fig. 2 is the local enlarged diagram of I among Fig. 1.
Fig. 3 is a filter structure schematic representation.
Fig. 4 is installed in partial sectional view in the rectangle groove one for y-type seal ring.
Fig. 5 is installed in partial sectional view in the rectangle groove two for lining ring.
1. cylinders among the figure, 2. cylinder transmits bar, 3. piston rod, 4. lead ring, 5. lining ring, 6. air inlet, the warning device that 7. leaks outside, 8. spring, 9. piston, 10. piston ring, 11.Y RunddichtringO, 12. piston sleeves, 13. piston waveguide tubes, 14. filter, 15. trip rods, 16. filters, 17. screw holes, 18. screw, 19. compacting rings, 20. filter pores, 21. sleeves, 22. the rectangle groove on the piston, the rectangle groove on 23. piston waveguide tubes, 24.O RunddichtringO, 25. slip rings.
The specific embodiment
Below in conjunction with embodiment the present invention is described in more detail.
In Fig. 1,2, sealing system of mechanical rapping apparatus is made up of filter 14, y-type seal ring 11, piston ring 10, air inlet 6, lining ring 5, lead ring 4, the gas warning device 7 that leaks outside; Cylinder in the mechanical rapping apparatus transmits bar 2 and is in transmission connection with piston rod 3, piston rod 3 is in transmission connection with trip rod 15 again, filter 14 is installed near on the trip rod 15 before the piston waveguide tube 13, dusty gas footpath under the duty in the equipment for gasification filters 9 in the piston rod 3 that enters piston sleeve 12 inside behind the dust and piston by filter 14, (Fig. 1 in 12 slits of piston 9 and piston sleeve, 2 middle filtrator internal arrows directions), guarantee that trip rod 15 is identical with the vaporising device internal pressure with the pressure of piston rod 3 contact positions, prevent that trip rod 15 or piston rod 3 from producing " locking " phenomenon because of the immense pressure difference; Y-type seal ring 11 is installed near on the piston 9 of trip rod 15 1 ends, forms a seal structures between piston 9 and piston sleeve 12; Piston ring 10 is sleeved on the centre position of piston 9, and piston 9 is played the role of positioning, and forms a seal structures more simultaneously between piston 9 and piston sleeve 12; Lead ring 4 is installed on the piston waveguide tube 13 interior close piston rods 3 of cylinder 1 one ends, and piston rod 3 is played the role of positioning, and forms a seal structures between piston rod 3 and piston waveguide tube 13; Lining ring 5 is installed on the piston rod 3 between piston waveguide tube 13 interior two lead rings 4, forms a seal structures between piston rod 3 and piston waveguide tube 13; Air inlet 6 be arranged near at the bottom of 8 on the spring with the piston waveguide tube 13 of lead ring 4 ends in, with piston waveguide tube 13 inside and mechanical rapping apparatus exterior, feed the nitrogen of certain pressure from air inlet 6, (general ratio vapourization equipment internal pressure is high by 0.5～0.6Mpa) calmly according to operating mode for concrete force value, nitrogen enters piston waveguide tube 13 inside, mechanical rapping apparatus inside is formed nitrogen-sealed, to reduce the pressure that sealing elements therein is born, pressure that y-type seal ring 11 bears is reduced to from the interior pressure of vaporising device feeds press in nitrogen pressure and the vaporising device poor, lining ring 5 places are born pressure and are become pressure reduction between nitrogen pressure and atmospheric pressure; The gas warning device 7 that leaks outside is provided with two pressure sensors, one is arranged in A place, position in the piston sleeve 12, measure 9 force value of piston sleeve 12 and piston by position, trip rod 15 1 side space, another is arranged in B place, position in the air inlet 6, mensuration feeds the nitrogen gas pressure value from air inlet 6, when A place pressure sensor institute measuring pressure value during greater than B place pressure sensor institute measuring pressure value the gas warning device 7 that leaks outside report to the police automatically, and increase synchronously feeds, and nitrogen amount carries out ftercompction to sealing system of mechanical rapping apparatus in the air inlet 6, realization is to the real-time monitoring of sealing system situation, prevent that thoroughly the vaporising device internal gas from leaking outside, improve the sealing effectiveness of sealing system of mechanical rapping apparatus.
In Fig. 2,3, filter 14 is by compacting ring 19, threaded connector, described threaded connector is screw 18, filter 16, filter pore 20, sleeve 21 compositions, screw 18 is fixed on compacting ring 19, filter 16 on the sleeve 21 by screw hole 17, the filter pore 20 of sleeve 21 inside is communicated with by filter 16 with vaporising device is inner, then directly be communicated with piston sleeve 12 inside, dusty gas footpath under the duty in the vaporising device enters filter pore 20 in the sleeve 21 after filtering dust by filter 16, directly enters piston sleeve 12 inside again.
In Fig. 4, y-type seal ring 11 is installed near in the rectangle groove 22 on the trip rod 15 1 end pistons 8, between piston sleeve 12, form the type self-fastening sealing structure of energizing at piston 8, y-type seal ring 11 descends pressurized to produce the self-tightening effect in working order, can improve its sealing effectiveness between piston sleeve 12 and piston 9.
In Fig. 5, lining ring 5 is made up of O RunddichtringO 24 and slip ring 25, is installed in the rectangle groove 23 between two lead rings 4, on the piston waveguide tube 13, forms a seal structures between piston rod 3 and piston waveguide tube 13; O RunddichtringO 24 pretightning forces are big on the one hand, the pretightning force that makes 5 pairs of piston rods of lining ring 3 produce is also big, and descend pressurized can produce the self-tightening effect in working order, can between piston waveguide tube 13 and piston rod 3, reach extraordinary sealing effectiveness, slip ring 25 coefficient of frictions are low on the other hand, make that the friction between lining ring 5 and the piston rod 3 is also very little, the low friction requirement when effectively satisfying piston rod 3 transmission energy.
It is same as the prior art that present embodiment is not stated part.
Claims (6)
1. sealing system of mechanical rapping apparatus, comprise the filter (14) that is installed on piston waveguide tube (13) trip rod (15) before, be installed near the sealing ring on the piston (9) of trip rod one end, be sleeved on the piston ring (10) on the piston, be installed in the piston waveguide tube near two lead rings (4) on the piston rod (3) of cylinder (1) one end, lining ring (5) is installed on the piston waveguide tube between two lead rings (13), it is characterized in that: described mechanical rapping apparatus also is included in piston waveguide tube (13) open interior near spring (8) the seat end and lead ring (4) end, this hole and mechanical rapping apparatus outside and piston waveguide tube (13) internal communication form air inlet (6), air inlet is communicated with source of the gas, described filter (14) is by compacting ring (19), threaded connector, filter (16), sleeve (21), filter pore (20) is formed, by threaded connector with compacting ring, filter is fixed on the sleeve, it is installed on piston waveguide tube (13) trip rod (15) before, filter pore (20) is communicated with by filter (16) with vaporising device inside in the sleeve, then directly is communicated with piston sleeve (12) inside.
2. sealing system of mechanical rapping apparatus according to claim 1 is characterized in that: described gas pressure from air inlet (6) feeding gas is the high 0.5～0.6Mpa of ratio vapourization equipment internal pressure.
3. sealing system of mechanical rapping apparatus according to claim 2 is characterized in that: the described source of the gas that feeds from air inlet is a nitrogen.
4. according to claim 1 or 3 described sealing system of mechanical rapping apparatus, it is characterized in that: described mechanical rapping apparatus also includes the gas warning device (7) that leaks outside, the described gas warning device that leaks outside is provided with two pressure sensors, is arranged in piston sleeve (12), the air inlet (6).
5. sealing system of mechanical rapping apparatus according to claim 1 is characterized in that: described sealing ring is y-type seal ring (11), and it matches with rectangle groove (22) on the piston.
6. sealing system of mechanical rapping apparatus according to claim 1 is characterized in that: described lining ring (5) is made up of slip ring (25) and O RunddichtringO (24), and it is installed in the rectangle groove (23) on the piston waveguide tube between the lead ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910060868XA CN101502828B (en) | 2009-02-26 | 2009-02-26 | Sealing system of mechanical rapping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910060868XA CN101502828B (en) | 2009-02-26 | 2009-02-26 | Sealing system of mechanical rapping apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101502828A CN101502828A (en) | 2009-08-12 |
| CN101502828B true CN101502828B (en) | 2011-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910060868XA Expired - Fee Related CN101502828B (en) | 2009-02-26 | 2009-02-26 | Sealing system of mechanical rapping apparatus |
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| CN (1) | CN101502828B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435400B (en) * | 2011-09-19 | 2014-02-26 | 武汉工程大学 | Bidirectional sealing performance test method of mechanical vibrator |
| CN102393278B (en) * | 2011-09-19 | 2013-07-10 | 武汉工程大学 | Bidirectional sealing performance testing system of mechanical rapping device |
| CN102364168A (en) * | 2011-11-14 | 2012-02-29 | 武汉工程大学 | Bidirectional internal sealing structure of mechanical vibrator |
| CN102492480B (en) * | 2011-11-14 | 2013-10-30 | 武汉工程大学 | Automatic rapping dust removing system |
| CN103920595B (en) * | 2014-04-11 | 2016-05-25 | 武汉工程大学 | A kind of mechanical rapping apparatus with safety interlock |
| CN106350121B (en) * | 2016-10-18 | 2019-12-06 | 武汉工程大学 | vibrating ash removal system |
| CN109967330B (en) * | 2018-12-27 | 2023-11-28 | 无锡市宇超电子有限公司 | Ultrasonic transduction device |
| CN113532765B (en) * | 2020-04-10 | 2024-02-13 | 浙江省海洋水产研究所 | Chromatograph gas circuit air leakage detection structure and method |
| CN114151546B (en) * | 2021-11-19 | 2024-01-05 | 奥星制药设备（石家庄）有限公司 | Flour mill |
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2009
- 2009-02-26 CN CN200910060868XA patent/CN101502828B/en not_active Expired - Fee Related
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| CN101502828A (en) | 2009-08-12 |
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Granted publication date: 20110323 Termination date: 20180226 |