CN104806772A - Self-grinding gas pipeline seal seat valve for high temperature and dust environments - Google Patents
Self-grinding gas pipeline seal seat valve for high temperature and dust environments Download PDFInfo
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- CN104806772A CN104806772A CN201510204172.5A CN201510204172A CN104806772A CN 104806772 A CN104806772 A CN 104806772A CN 201510204172 A CN201510204172 A CN 201510204172A CN 104806772 A CN104806772 A CN 104806772A
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- gas pipeline
- valve rod
- casing body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a self-grinding gas pipeline seal seat valve for high temperature and dust environments. The self-grinding gas pipeline seal seat valve comprises a valve casing body, a lifting mechanism, a suspension mechanism, a rotation driving mechanism, a sweeping mechanism, a valve core and a seal ring; the lifting mechanism is connected with a valve rod; the valve rod is connected with the suspension mechanism; the lower part of the suspension mechanism is provided with the rotation driving mechanism; the lower part of the rotation driving mechanism penetrates through the valve casing body through a rotary valve rod and is connected with the valve core; the seal ring is arranged at an air inlet in the lower part of the valve casing body; the sweeping mechanism is arranged at the side wall of the valve casing body; a control mechanism is connected with the lifting mechanism, the rotation driving mechanism and the sweeping mechanism. The problem of the seal stop of a valve body under the high temperature and dust environments is solved, so that the seal valve is prolonged to 11 thousand times of opening and closing from several times after which the seal valve can lose efficacy after being opened and closed originally; moreover, the self-grinding gas pipeline seal seat valve disclosed by the invention has an excellent seal effect; after the self-grinding gas pipeline seal seat valve is closed, zero leakage is realized; the equipment replacing frequency is reduced; production can be smoothly performed; the self-grinding gas pipeline seal seat valve is worthy of being applied and popularized.
Description
Technical field
The present invention relates to valve technology field, particularly self-grind high-temperature dust environment gas pipeline seals seat valve.
Background technique
At hot environment dust with in gas pipeline valve, owing to being mingled with a large amount of dust, make the sealing of high-temperature gas system pipeline break-make controlling position herein seem especially important, traditional control mode generally adopts dish-style stop valve; Owing to being mingled with dust granules in gas, cause cannot realizing long effective sealing between flap and valve seat; Secondly its easy to wear, non-refractory; And sealing is poor, often need keeps in repair, change, cause acquisition cost, user cost to increase, and effect be always not good.
In addition, existing stop valve, the surface of contact that valve seat coordinates with flap is set to the larger plane of area usually, two rigid planar contact sealings, at high temperature, under high pressure conditions, easily the material produced in waste gas treatment process or impurity are accumulated on this plane, cause the identical imprecision of surface of contact and flap, reduce sealing, particularly when temperature reach 400 ~ 600 DEG C even higher temperature, current valve body can not meet the requirement ended completely, when so for opening and closing inflammable gas or even toxic gas, long leakage just likely makes workman face very large potential safety hazard, even life risk, be unfavorable for and keep the safety in production and the life and health safety of operator.However, usually and housing integrally casting being made by machining, its structure is thick and heavy, and cost of production is high, and can not fundamentally solve corresponding problem for high performance stop valve connecting flange; Therefore a kind of self-grind high-temperature dust environment gas pipeline is needed to seal seat valve.
Summary of the invention
In order to address the aforementioned drawbacks, the invention provides and a kind ofly seal seat valve from belt grinding cleaning apparatus, good airproof performance, failure rate is low, the self-grind high-temperature dust environment gas pipeline that high temperature resistant, long service life, user cost are low.
The technological scheme adopted for realizing object of the present invention is: a kind of self-grind high-temperature dust environment gas pipeline seals seat valve, comprise valve casing body, lifting gear, suspension mechanism, rotary drive mechanism, cleaning agency, spool and seal ring, described lifting gear is connected with valve rod, described valve rod is connected with suspension mechanism, described suspension mechanism bottom arranges rotary drive mechanism, described rotary drive mechanism bottom is run through valve casing body by rotary valve rod and is connected with spool, described seal ring is arranged on valve casing body lower part suction port place, described cleaning agency is arranged on valve casing body sidewall, described control mechanism respectively with lifting gear, rotary drive mechanism is connected with cleaning agency.
Described lifting gear is connected with valve casing body by supporting slide rail, and described support slide rail runs through suspension mechanism and rotary drive mechanism.
Described lifting gear is hydraulic rockshaft or electric hoist device.
Described suspension mechanism comprises suspension housing, pendulum spring, Compress Spring, thrust-bearing, bearing and rotary valve rod, in described suspension housing, valve rod is set, described valve stem end is pillow block, described pillow block top arranges pendulum spring, described pillow block bottom arranges Compress Spring, described Compress Spring bottom arranges thrust-bearing, and described thrust-bearing bottom arranges rotary valve rod, and described rotary valve rod is set on bearing.
Described pendulum spring and Compress Spring place arrange sliding sleeve, and described thrust-bearing top is fixedly connected with suspension housing.
Described rotary drive mechanism comprises reducing motor and driven gear, and described driven gear is fixedly connected with rotary valve rod, and described reducing motor is connected with driven gear.
Described rotary valve rod is connected with spool through valve casing body upper part, and described rotary valve rod bottom is square, and described rotary valve rod end is spherical.
Described spool and seal ring surface of contact are sphere, and described seal ring is ring-type.
Described cleaning agency comprises guide rail, drive motor, bistrique, mill bar and control module, and described drive motor is arranged on guide rail, and described drive motor is connected with bistrique by mill bar, and described control module is arranged on guide rail end.
Described control module is hydraulic push rod or leading screw flexible rod or air-leg.
Described support slide rail arranges position limit switch.
Described control mechanism is PLC.
The valve casing body that the present invention adopts uses exotic material to be welded, and inwall arranges thermal insulation layer can ensure inner high temperature, reduces scattering and disappearing of heat, and can according to actual production need be designed to threeway or two-way valve, by supporting slide rail, lifting gear is set at an upper portion thereof at valve casing body upper part, the lifting of valve rod can be controlled by the conventional means such as hydraulic pressure or electric threaded shaft, support slide rail sets gradually suspension mechanism and rotary drive mechanism from top to bottom, suspension mechanism and rotary drive mechanism can be moved up and down along supporting slide rail, support slide rail arranges position limit switch, when closed spool when suspension mechanism moves to position limit switch place, lifting gear is made to stop after push switch, and by information feed back to control mechanism, by control mechanism drive control module, bistrique can be pushed ahead, rotary drive mechanism drives rotary valve rod to rotate simultaneously, and in rotation, it contacts with bistrique, carries out cleaning works, owing to arranging suspension mechanism in lifting gear bottom, when spool is contacted with bistrique, its rigid contact can be become Elastic Contact by suspension mechanism place, rigidity hard grind is avoided to damage, ensure that the effect of cleaning, after cleaning, by PLC send instruction then bistrique under the driving of control module, leave spool, hide to valve casing body sidewall, lifting gear continues to run closed downwards simultaneously, and rotary drive mechanism drives rotary valve rod to make spool fall in rotation, until seal ring place, when effect due to rotation makes it to be that seal ring contacts, better can realize contact, and because the effect rotated can realize sealing better, and adopt for linear sealing can ensure sealing effect, and spool can be become Elastic Contact with hard contact of seal ring because suspension mechanism place arranges Compress Spring, avoid wearing and tearing and poorly sealed close phenomenon because spool and seal ring contact to cause firmly.
The suspension mechanism adopted arranges valve rod in suspension housing, and valve stem end arranges pillow block, make it pendulum spring can be set thereon, and pendulum spring choose spool according to its underpart, rotary valve rod, rotary drive mechanism quality choose, make flexible gap between spring, avoid occurring directly compressing the phenomenon causing spring failure, also avoid the overweight phenomenon causing spring elongation to lose efficacy of quality owing to hanging; Guide sleeve can be set between spring outwards and suspension housing, avoiding valve rod hanging rocking in housing, Compress Spring being set in stem lower portion, the effect of buffering can be played when valve rod declines, avoid the directly hard contact of bottom spool, extend the working life of spool; In Compress Spring bottom, thrust-bearing is set, thrust-bearing top is fixed with suspension housing, and bottom then contacts with rotary valve rod, in order to ensure the effect of rotation and fixing rotary valve rod, sheathed roller bearing on rotary valve rod, rotatably supportedly can ensure that bearing can not cause the phenomenon of bearing failure because of impacting force playing simultaneously.
The rotary drive mechanism adopted its be arranged through the mode that reducing motor is combined with driven gear, and the mode that driven gear is combined with reducing motor, in addition the mode that is fixedly linked of this driving mechanism and mounting mechanism bottom, can be elevated with its lifting, also make it only adopt reducing motor and be arranged on the mode that driven gear on rotary valve rod is combined and stablized.
Rotary valve rod bottom for its main purpose of square be to ensure the support force that the rotation of spool provides stable, spheroidal structure is set at its end, make its can rotation in self-alignment, ensure rotary seal time stability under loading, ensure sealing stability.
The spool adopted is arranging sphere with seal ring surface of contact place, and be high-temperature alloy sealing sphere, adopt the mode of built-up welding, and its hardness is higher than seal ring, achieve and be flexible coupling, avoid the phenomenon of hard contact wear, its objective is that allowing the linear sealing face of valve seat obtain grinding when self-grind consumes as far as possible.
At valve casing body sidewall, cleaning agency is set, guide rail is arranged on valve casing body outer side wall, and drive motor is set thereon, in the front portion of drive motor, mill bar is set, mill bar runs through valve casing body sidewall and is connected with bistrique, and arranges sleeve and sealing, the phenomenon of anti-leak-stopping heat at mill bar place, control module controls the advance of drive motor on slide rail and retrogressing, thus achieves the flexible of bistrique.
The suspended pattern that the present invention adopts, can play the effect of elastic compression by the holddown spring of bottom when needing to grind, solving abradant surface that hard contact exists may not in place or excessive compression thus can not effectively grinding of causing or reducing motor load is excessive and overmastication problem; The pendulum spring that top is arranged is according to the weight of valve seat, and the lifting force of setting spring, thus ensure that valve seat plays according to certain suspending power the overweight spool effect of suspending, reduces the overweight frictional force caused between valve seat of spool; Within it cleaning agency is set, good cleaning can be played to spool, ensure that it is the sealing of clean face when sealing at every turn, ensure the effect of sealing.
Under the invention solves high temperature and dust atmosphere, valve body ends the difficult problem sealed, originally namely seal valve opening and closing was lost efficacy for several times in use and extends to folding of the present invention 1.1 ten thousand times, and the present invention is splendid at sealing effect, zero leakage is achieved after closed, decrease the frequency of equipment replacement, ensure that carrying out smoothly of production, be worth application and promote.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the vertical profile structural representation of closed state of the present invention;
Fig. 2 is the vertical profile structural representation of opening state of the present invention;
Fig. 3 is the structural representation of suspension mechanism of the present invention and rotary drive mechanism;
Fig. 4 is the structural representation of cleaning agency of the present invention;
Fig. 5 is the structural representation that spool of the present invention is closed;
Fig. 6 is the structural representation of rotary valve rod bottom of the present invention;
Fig. 7 is the structural representation of suspension mechanism of the present invention;
1-lifting gear 2-suspension mechanism 3-rotary drive mechanism 4-control mechanism 5-valve casing body 6-cleaning agency 7-seal ring 8-spool 21-supports slide rail 22-valve rod 23-pendulum spring 24-pillow block 25-thrust-bearing 26-bearing 27-position limit switch 28-and hangs housing 29-Compress Spring 30-guide sleeve 31-reducing motor 32-rotary valve rod 33-square 34-ball-type 61-drive motor 62-control module 63-guide rail 64-mill bar 65-bistrique 81-sphere.
Embodiment
In order to the superiority of this device of further instruction, the performance of this device is carried out to the test of different pieces of information: first group: under identical high-temperature dust environment, test its sealing number of times and sealing effect respectively, the laboratory data of acquisition is as shown in the table;
Title | Sealing cycle (number of times) | Work off one's feeling vent one's spleen after sealing flow (with/without) |
Plate valve | 3-5 | Have |
This device | 10000-11000 | Nothing |
As can be seen from the above table, for same high temperature dust atmosphere, under the effect of identical bore and air-flow, this device is compared with common high-temperature dust valve body, sealing cycle improves more than 2000 times, and after sealing, airless is revealed, and common plate valve is due to the existence of dust, make it poorly sealed close, produce and reveal.
Second group: for this identical device, one adopts cleaning agency one not adopt cleaning agency, tests its sealing cycle respectively.
Title | Sealing cycle (opening and closing times) |
Do not adopt cleaning agency | 10-20 |
Adopt cyclonic air flow | 20-30 |
The cleaning agency of this device | 10000-11000 |
Adopt cleaning agency difference as can be seen from the above table in the present invention and do not adopt cleaning agency, all can have a strong impact on sealing cycle of the present invention.
3rd group: for this identical device, to not adopting suspension mechanism, adopting suspension mechanism of the present invention, carry out comparative trial test sealing cycle.
Title | Sealing cycle (opening and closing times) |
This device | 10000-11000 |
Suspension mechanism is not set | 3000-4000 |
Rotary drive mechanism is not set | 5000-6000 |
Analysis known device is carried out to upper table, can obtain at employing suspension mechanism and well seal cycle, and the sealing cycle only obtaining 3000-4000 of suspension mechanism is not set, even if but adopt identical structure due to do not arrange rotary drive mechanism then its sealing cycle be also only only 5000-6000 time.Analysis reason is known, under the mutual synergy of this device suspension mechanism and rotary drive mechanism, only just can obtain the working life of 10000-11000 cycle.
As shown in figs. 1-7: a kind of self-grind high-temperature dust environment gas pipeline seals seat valve, comprise valve casing body 5, lifting gear 1, suspension mechanism 2, rotary drive mechanism 3, cleaning agency 6, spool 8, seal ring 7 and control mechanism 4, described lifting gear 1 is connected with valve rod 22, described valve rod 22 is connected with suspension mechanism 2, described suspension mechanism 2 bottom arranges rotary drive mechanism 3, described rotary drive mechanism 3 bottom is run through valve casing body 5 by rotary valve rod 32 and is connected with spool 8, described seal ring 7 is arranged on suction port place, valve casing body 5 bottom, described cleaning agency 6 is arranged on valve casing body 5 sidewall, described control mechanism 4 respectively with lifting gear 1, rotary drive mechanism 3 is connected with cleaning agency 6.
Described lifting gear 1 is connected with valve casing body 5 by supporting slide rail 21, and described support slide rail 21 runs through suspension mechanism 2 and rotary drive mechanism 3.
Described lifting gear 1 is hydraulic rockshaft or electric hoist device.
Described suspension mechanism 2 comprises suspension housing 28, pendulum spring 23, Compress Spring 29, thrust-bearing 25, bearing 26 and rotary valve rod 32, in described suspension housing 28, valve rod 22 is set, described valve rod 22 end is pillow block 24, described pillow block 24 top arranges pendulum spring 23, described pillow block 24 bottom arranges Compress Spring 29, described Compress Spring 29 bottom arranges thrust-bearing 25, and described thrust-bearing 25 bottom arranges rotary valve rod 32, and described rotary valve rod 32 is over the shaft 26 sheathed.
Described pendulum spring 23 arranges guide sleeve 30 with Compress Spring 29 place, and described thrust-bearing 25 top is fixedly connected with suspension housing 28.
Described rotary drive mechanism 3 comprises reducing motor 31 and driven gear, and described driven gear is fixedly connected with rotary valve rod 32, and described reducing motor 31 is connected with driven gear.
Described rotary valve rod 32 is connected with spool 8 through valve casing body 5 top, and described rotary valve rod 32 bottom is square 33, and described rotary valve rod 32 end is spherical 34.
Described spool 8 is sphere 81 with seal ring 7 surface of contact, and described seal ring 7 is ring-type.
Described cleaning agency comprises guide rail 63, drive motor 61, bistrique 65, mill bar 64 and control module 62, and described drive motor 61 is arranged on guide rail 63, and described drive motor 61 is connected with bistrique 65 by mill bar 64, and described control module 62 is arranged on guide rail 63.
Described control module 62 is hydraulic push rod or leading screw flexible rod or air-leg.
Described support slide rail 21 arranges position limit switch 27.
Described control mechanism 4 is PLC.
The valve casing body that the present invention adopts uses exotic material to be welded, and inwall arranges thermal insulation layer can ensure inner high temperature, reduces scattering and disappearing of heat, and can according to actual production need be designed to threeway or two-way valve, by supporting slide rail, lifting gear is set at an upper portion thereof at valve casing body upper part, the lifting of valve rod can be controlled by the conventional means such as hydraulic pressure or electric threaded shaft, support slide rail sets gradually suspension mechanism and rotary drive mechanism from top to bottom, suspension mechanism and rotary drive mechanism can be moved up and down along supporting slide rail, support slide rail arranges position limit switch, when closed spool when suspension mechanism moves to position limit switch place, lifting gear is made to stop after push switch, and by information feed back to control mechanism, by control mechanism drive control module, bistrique can be pushed ahead, rotary drive mechanism drives rotary valve rod to rotate simultaneously, and in rotation, it contacts with bistrique, carries out cleaning works, owing to arranging suspension mechanism in lifting gear bottom, when spool is contacted with bistrique, its rigid contact can be become Elastic Contact by suspension mechanism place, rigidity hard grind is avoided to damage, ensure that the effect of cleaning, after cleaning, by PLC send instruction then bistrique under the driving of control module, leave spool, hide to valve casing body sidewall, lifting gear continues to run closed downwards simultaneously, and rotary drive mechanism drives rotary valve rod to make spool fall in rotation, until seal ring place, when effect due to rotation makes it to be that seal ring contacts, better can realize contact, and because the effect rotated can realize sealing better, and adopt for linear sealing can ensure sealing effect, and spool can be become Elastic Contact with hard contact of seal ring because suspension mechanism place arranges Compress Spring, avoid wearing and tearing and poorly sealed close phenomenon because spool and seal ring contact to cause firmly.
The suspension mechanism adopted arranges valve rod in suspension housing, and valve stem end arranges pillow block, make it pendulum spring can be set thereon, and pendulum spring choose spool according to its underpart, rotary valve rod, rotary drive mechanism quality choose, make flexible gap between spring, avoid occurring directly compressing the phenomenon causing spring failure, also avoid the overweight phenomenon causing spring elongation to lose efficacy of quality owing to hanging; Guide sleeve can be set between spring outwards and suspension housing, avoiding valve rod hanging rocking in housing, Compress Spring being set in stem lower portion, the effect of buffering can be played when valve rod declines, avoid the directly hard contact of bottom spool, extend the working life of spool; In Compress Spring bottom, thrust-bearing is set, thrust-bearing top is fixed with suspension housing, and bottom then contacts with rotary valve rod, in order to ensure the effect of rotation and fixing rotary valve rod, sheathed roller bearing on rotary valve rod, rotatably supportedly can ensure that bearing can not cause the phenomenon of bearing failure because of impacting force playing simultaneously.
The rotary drive mechanism adopted its be arranged through the mode that reducing motor is combined with driven gear, and the mode that driven gear is combined with reducing motor, in addition the mode that is fixedly linked of this driving mechanism and mounting mechanism bottom, can be elevated with its lifting, also make it only adopt reducing motor and be arranged on the mode that driven gear on rotary valve rod is combined and stablized.
Rotary valve rod bottom for its main purpose of square be to ensure the support force that the rotation of spool provides stable, spheroidal structure is set at its end, make its can rotation in self-alignment, ensure rotary seal time stability under loading, ensure sealing stability.
The spool adopted is arranging sphere with seal ring surface of contact place, and be high-temperature alloy sealing sphere, adopt the mode of built-up welding, and its hardness is higher than seal ring, achieve and be flexible coupling, avoid the phenomenon of hard contact wear, its objective is that allowing the linear sealing face of valve seat obtain grinding when self-grind consumes as far as possible.
At valve casing body sidewall, cleaning agency is set, guide rail is arranged on valve casing body outer side wall, and drive motor is set thereon, in the front portion of drive motor, mill bar is set, mill bar runs through valve casing body sidewall and is connected with bistrique, and arranges sleeve and sealing, the phenomenon of anti-leak-stopping heat at mill bar place, control module controls the advance of drive motor on slide rail and retrogressing, thus achieves the flexible of bistrique.
The suspended pattern that the present invention adopts, can play the effect of elastic compression by the holddown spring of bottom when needing to grind, solving abradant surface that hard contact exists may not in place or excessive compression thus can not effectively grinding of causing or reducing motor load is excessive and overmastication problem; The pendulum spring that top is arranged is according to the weight of valve seat, and the lifting force of setting spring, thus ensure that valve seat plays according to certain suspending power the overweight spool effect of suspending, reduces the overweight frictional force caused between valve seat of spool; Within it cleaning agency is set, good cleaning can be played to spool, ensure that it is the sealing of clean face when sealing at every turn, ensure the effect of sealing.
Under the invention solves high temperature and dust atmosphere, valve body ends the difficult problem sealed, originally namely seal valve opening and closing was lost efficacy for several times in use and extends to folding of the present invention 1.1 ten thousand times, and the present invention is splendid at sealing effect, zero leakage is achieved after closed, decrease the frequency of equipment replacement, ensure that carrying out smoothly of production, be worth application and promote.
Claims (10)
1. a self-grind high-temperature dust environment gas pipeline seals seat valve, comprise valve casing body, lifting gear, suspension mechanism, rotary drive mechanism, cleaning agency, spool, seal ring and control mechanism, it is characterized in that: described lifting gear is connected with valve rod, described valve rod is connected with suspension mechanism, described suspension mechanism bottom arranges rotary drive mechanism, described rotary drive mechanism bottom is run through valve casing body by rotary valve rod and is connected with spool, described seal ring is arranged on valve casing body lower part suction port place, described cleaning agency is arranged on valve casing body sidewall, described control mechanism respectively with lifting gear, rotary drive mechanism is connected with cleaning agency.
2. self-grind high-temperature dust environment gas pipeline according to claim 1 seals seat valve, it is characterized in that: described lifting gear is connected with valve casing body by supporting slide rail, and described support slide rail runs through suspension mechanism and rotary drive mechanism; Described control mechanism is PLC; Described lifting gear is hydraulic rockshaft or electric hoist device.
3. self-grind high-temperature dust environment gas pipeline according to claim 1 seals seat valve, it is characterized in that: described suspension mechanism comprises suspension housing, pendulum spring, Compress Spring, thrust-bearing, bearing and rotary valve rod, in described suspension housing, valve rod is set, described valve stem end is pillow block, described pillow block top arranges pendulum spring, described pillow block bottom arranges Compress Spring, described Compress Spring bottom arranges thrust-bearing, described thrust-bearing bottom arranges rotary valve rod, and described rotary valve rod is set on bearing.
4. self-grind high-temperature dust environment gas pipeline according to claim 3 seals seat valve, it is characterized in that: described pendulum spring and Compress Spring place arrange sliding sleeve, and described thrust-bearing top is fixedly connected with suspension housing.
5. self-grind high-temperature dust environment gas pipeline according to claim 1 seals seat valve, it is characterized in that: described rotary drive mechanism comprises reducing motor and driven gear, described driven gear is fixedly connected with rotary valve rod, and described reducing motor is connected with driven gear.
6. self-grind high-temperature dust environment gas pipeline according to claim 3 seals seat valve, it is characterized in that: described rotary valve rod is connected with spool through valve casing body upper part, and described rotary valve rod bottom is square, and described rotary valve rod end is spherical.
7. self-grind high-temperature dust environment gas pipeline according to claim 1 seals seat valve, and it is characterized in that: described spool and seal ring surface of contact are sphere, described seal ring is ring-type.
8. self-grind high-temperature dust environment gas pipeline according to claim 1 seals seat valve, it is characterized in that: described cleaning agency comprises guide rail, drive motor, bistrique, mill bar and control module, described drive motor is arranged on guide rail, described drive motor is connected with bistrique by mill bar, and described control module is arranged on guide rail end.
9. self-grind high-temperature dust environment gas pipeline according to claim 8 seals seat valve, it is characterized in that: described control module is hydraulic push rod or leading screw flexible rod or air-leg.
10. self-grind high-temperature dust environment gas pipeline according to claim 2 seals seat valve, it is characterized in that: described support slide rail arranges position limit switch.
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CN107035874A (en) * | 2017-05-31 | 2017-08-11 | 朱书红 | A kind of sealing valve |
CN107378751A (en) * | 2017-08-29 | 2017-11-24 | 上海平安高压调节阀门有限公司 | A kind of online valve grinding device |
CN108071845A (en) * | 2018-01-30 | 2018-05-25 | 成都威登阀门技术有限公司 | Linear motion type pneumatic actuator |
CN109737215A (en) * | 2019-02-12 | 2019-05-10 | 河南能微新材料科技股份有限公司 | A kind of dedicated two way seal high-temperature gate valve of nano material |
CN109838564A (en) * | 2019-03-28 | 2019-06-04 | 西峡龙成特种材料有限公司 | A kind of double containment high-temperature sealing valve and high-temperature combustible gas transportation system |
CN110925437A (en) * | 2019-12-31 | 2020-03-27 | 江苏金吉利自动控制技术有限公司 | Automatic unloading valve of alignment |
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JP2002098252A (en) * | 2000-09-22 | 2002-04-05 | Ichimaru Giken:Kk | Linear electric operated valve |
CN2679430Y (en) * | 2004-01-12 | 2005-02-16 | 张跃 | Electric angle valve |
CN2690695Y (en) * | 2004-04-16 | 2005-04-06 | 程任翔 | Self working check valve |
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Cited By (13)
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CN105042332A (en) * | 2015-08-07 | 2015-11-11 | 中国计量学院 | Safety valve anti-explosion opening device of tank and method for exhausting gas in tank |
CN105065902A (en) * | 2015-08-07 | 2015-11-18 | 中国计量学院 | Detection system for opening tension of tank safety valve in non-disassembly state |
CN105042332B (en) * | 2015-08-07 | 2017-02-01 | 中国计量学院 | Safety valve anti-explosion opening device of tank and method for exhausting gas in tank |
CN107035874B (en) * | 2017-05-31 | 2019-02-22 | 朱书红 | A kind of sealing valve |
CN107035874A (en) * | 2017-05-31 | 2017-08-11 | 朱书红 | A kind of sealing valve |
CN107378751A (en) * | 2017-08-29 | 2017-11-24 | 上海平安高压调节阀门有限公司 | A kind of online valve grinding device |
CN108071845A (en) * | 2018-01-30 | 2018-05-25 | 成都威登阀门技术有限公司 | Linear motion type pneumatic actuator |
CN108071845B (en) * | 2018-01-30 | 2024-04-05 | 成都威登阀门技术有限公司 | Straight-stroke pneumatic actuator |
CN109737215A (en) * | 2019-02-12 | 2019-05-10 | 河南能微新材料科技股份有限公司 | A kind of dedicated two way seal high-temperature gate valve of nano material |
CN109737215B (en) * | 2019-02-12 | 2024-03-22 | 河南能微新材料科技股份有限公司 | Special bidirectional sealing high-temperature gate valve for nano materials |
CN109838564A (en) * | 2019-03-28 | 2019-06-04 | 西峡龙成特种材料有限公司 | A kind of double containment high-temperature sealing valve and high-temperature combustible gas transportation system |
CN109838564B (en) * | 2019-03-28 | 2024-05-03 | 西峡龙成特种材料有限公司 | Double-seal high-temperature sealing valve and high-temperature combustible gas conveying system |
CN110925437A (en) * | 2019-12-31 | 2020-03-27 | 江苏金吉利自动控制技术有限公司 | Automatic unloading valve of alignment |
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