CN109027268A - A kind of big valve of ethylene cracking gas - Google Patents
A kind of big valve of ethylene cracking gas Download PDFInfo
- Publication number
- CN109027268A CN109027268A CN201811053258.2A CN201811053258A CN109027268A CN 109027268 A CN109027268 A CN 109027268A CN 201811053258 A CN201811053258 A CN 201811053258A CN 109027268 A CN109027268 A CN 109027268A
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- China
- Prior art keywords
- valve
- valve body
- axle bed
- cracking gas
- slot
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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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
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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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/224—Details of bearings for the axis of rotation
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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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2268—Sealing means for the axis of rotation
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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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
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/005—Circulation means for a separate heat transfer fluid
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
- F16L59/161—Housings for valves, tee pieces, or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lift Valve (AREA)
Abstract
The present invention relates to valve technology fields, more particularly, to a kind of big valve of ethylene cracking gas.A kind of big valve of ethylene cracking gas, including valve body and gear-box, the actuator for manipulating gear-box is provided on the gear-box, valve shaft is provided in the gear-box, the valve shaft rotation connection is threaded through on valve body, further includes the valve plate being arranged in inside the middle chamber of valve body, axle bed gusset is provided on the side of the valve plate, it is provided with the axis hole matched with valve shaft on the axle bed gusset, the valve seat matched with valve plate is provided on the inner surface of the valve body.Good airproof performance when valve of the invention is closed, long service life sensitive to the switch control of valve.
Description
Technical field
The present invention relates to valve technology fields, more particularly, to a kind of big valve of ethylene cracking gas.
Background technique
The big valve of ethylene cracking gas is located on the cracking gas pipeline of cracking outlet of still, plays cutting cracking gas and leads to downstream
The effect of the access of gasoline splitter or fuel oil stripper.The steady peace of the sealing of the big valve of cracking gas and switch to ethylene unit
Row for the national games has an important influence, when normal operating, manage in medium be cracking gas or the urgent cold oil of cracking gas；The big valve of cracking gas is necessary
Guarantee to close tight, zero leakage, so that achieving the purpose that guarantee is safe and to prevent char particle from washing away for a long time causes sealing surface
Damage.
The valve tightness of the big valve of cracking gas currently on the market is bad, and valve easily occurs switching unsmooth problem, in work
Safety during work is not high, and service life is not grown.
Summary of the invention
The present invention provides good airproof performance when a kind of valve closure, the switch control to valve primarily directed to the above problem
Make sensitive, the big valve of ethylene cracking gas with long service life.
The purpose of the present invention is mainly to be achieved by following proposal: a kind of big valve of ethylene cracking gas, including
Valve body and gear-box are provided with the actuator for manipulating gear-box on the gear-box, are provided in the gear-box
Valve shaft, the valve shaft rotation connection are threaded through on valve body, further include the valve plate being arranged in inside the middle chamber of valve body, described
Valve plate side on be provided with axle bed gusset, the axis hole matched with valve shaft is provided on the axle bed gusset, it is described
The valve seat matched with valve plate is provided on the inner surface of valve body.The actuator for manipulating gear-box is provided on gear-box,
Valve shaft is provided in gear-box, valve shaft rotation connection is threaded through on valve body, and actuator can drive the gear in gear-box to rotate
To drive valve shaft to rotate, further includes the valve plate being arranged in inside the middle chamber of valve body, be provided with axle bed on the side of valve plate
Gusset is provided with the axis hole matched with valve shaft on axle bed gusset, and axle bed gusset plays the role of reinforcing support construction, simultaneously
Valve shaft is threaded through in axis hole, valve shaft rotation energy band moving axis seat gusset and valve plate rotate simultaneously, be provided on the inner surface of valve body and
The valve seat that valve plate matches, valve shaft rotation drive valve plate rotation, and valve plate is matched with valve seat realizes opening or closing for valve, valve
The inner wall of seat and the outer surface of valve plate can may be implemented to be sealed against, and form sealing effect.
Preferably, the side of the valve body is provided with into vapor interface, the other side of the valve body is provided with out
Vapor interface, described into the air inlet for being connected to valve inner is provided in vapor interface, described going out in vapor interface is set
It is equipped with the gas outlet for being connected to valve inner.The side of valve body is provided with into vapor interface, and the other side of valve body, which is provided with out, steams
Vapour interface, into vapor interface in be provided with the air inlet for being connected to valve inner, be provided in vapor interface be connected to valve body out
Internal gas outlet, the intracorporal medium coking of valve are easily destroyed sealing surface, valve are made to be not closed completely, and generate leakage, therefore in work
By being passed through high-temperature steam into valve body into vapor interface when making, medium coking can be prevented, into the intracorporal high-temperature steam of valve
Gas outlet discharge from vapor interface out.
Preferably, into the vapor interface and out vapor interface passes through insulation jacket and connect with valve body.Into steam
Interface and out vapor interface pass through insulation jacket and connect with valve body, and the setting of insulation jacket can play the work of anti-coking anti-leak
With increasing valve reliability of operation.
Preferably, the valve body is forge piece.Valve body is forge piece, substantially increases the strength and stiffness of valve body,
Increase service life and reliability.
Preferably, valve shaft is fixed on valve body close to one end of gear-box by upper axle bed, the upper axle bed and valve
It is connected between axis by bearing, the one end of the valve shaft far from gear-box is fixed on valve body by lower axle bed, under described
It is connected between axle bed and valve shaft by bearing, the lower axle bed is equipped with bearing cap far from one end of valve shaft.Valve shaft is close to tooth
One end of roller box is fixed on valve body by upper axle bed, is connected between upper axle bed and valve shaft by bearing, valve shaft is far from gear-box
One end be fixed on valve body by lower axle bed, it is lower between axle bed and valve shaft by bearing connect, lower axle bed far from valve shaft one
End is equipped with bearing cap, and bearing cap is bolted on lower axle bed, and bearing is self-lubricating bearing, effectively reduces valve shaft
The switching torque of valve greatly reduces in frictional force when rotation, improves service life.
Preferably, being provided with filler between the upper axle bed and valve shaft, the lower axle bed is directly arranged with valve shaft
There is filler.Filler is provided between upper axle bed and valve shaft, lower axle bed and valve shaft are provided directly with filler, and the setting of filler can be prevented
Only the medium leakage in valve body, the setting of filler play sealing function.
Preferably, the axis of the axis runout valve body of the valve shaft, between valve seat axis of rotation and the axis of valve body
With angle.The axis of the axis runout valve body of valve shaft passes through valve shaft axis runout valve plate sealing known to the setting of axle bed gusset
Face, has angle between valve seat axis of rotation and the axis of valve body, valve seat axis of rotation is shaft centre line when processing valve seat, shape
At a three eccentricity structure, when being arranged in this way so that valve is shown in a fully open operation, it is close that the sealing surface of valve plate can completely disengage valve seat
Cover, and when valve is gradually closed, sealing surface of valve plate is gradually compressed relative to sealing surface of seat, to completely eliminate valve
Mechanical wear and scratch when closure, and sealing effect is good.
Preferably, being provided with the protection against erosion gear for protecting valve plate in valve wide open on the inner wall of the valve body
Circle.The protection against erosion retaining ring for protecting valve plate in valve wide open is provided on the inner wall of valve body, protection against erosion retaining ring is arranged in valve
The input end of door, in valve wide open, protection against erosion retaining ring and valve plate are in same level, protection against erosion retaining ring semi-surrounding valve
Plate plays a protective role to sealing surface of valve plate, prevents medium from washing away sealing surface of valve plate, increases the service life of valve.
Preferably, the protection against erosion retaining ring is fixed on valve body by fixed device, the fixation device includes
Retaining ring ontology and the fixed station being fixed on valve inner two sidewalls are provided with slot on the side of the fixed station, described
The two sides of retaining ring ontology be provided with the inserted block matched with slot, be correspondingly arranged on the side wall and inserted block of the fixed station
Have a screw hole, the retaining ring ontology with after fixed station grafting and the bolt by matching with screw hole is fixedly connected.Protection against erosion gear
Circle is fixed on valve body by fixed device, fixes the fixation that device includes retaining ring ontology and is fixed on valve inner two sidewalls
Platform, fixed station are welded on valve interior wall, slot are provided on the side of fixed station, the two sides of retaining ring ontology are provided with and slot
The inserted block matched, is correspondingly arranged on screw hole on the side wall and inserted block of fixed station, retaining ring ontology with after fixed station grafting and lead to
It crosses the bolt matched with screw hole to be fixedly connected, the inserted block of two sides is inserted into slot by mobile retaining ring ontology, then passes through spiral shell
Inserted block is fixed on fixed station by bolt, so that the installation of protection against erosion retaining ring is very firm, detachable maintaining replacement is also very convenient.
Preferably, being hinged with baffle on wall at the top of the slot, the baffle plate setting is open close to slot
Locate, the side far from opening on the wall at the top of the slot is provided with retaining groove corresponding with baffle, the baffle top
With on the wall at the top of slot between be connected with torsional spring, the height of the baffle is greater than the height of slot.On wall at the top of slot
It is hinged with baffle, side of the baffle plate setting far from opening on the wall at the top of slot opening, slot is provided with and baffle
Corresponding retaining groove, on the wall at the top of baffle top and slot between be connected with torsional spring, the height of baffle is greater than the height of slot,
When being fitted without protection against erosion retaining ring, baffle is against on slot underside wall under the action of torsional spring, can effectively prevent medium into
Enter in slot, when installing protection against erosion retaining ring, inserted block overcomes the elastic force flap shutter of torsional spring to enter inside slot, while making baffle
It is embedded in retaining groove, so that baffle does not impact the installation of retaining ring ontology.
Preferably, the two sides of the axis hole are provided with the limiting slot in axle bed gusset, set on the valve shaft
It is equipped with the fixture block matched with limiting slot.The two sides of axis hole are provided with the limiting slot in axle bed gusset, are provided on valve shaft
The fixture block matched with limiting slot, when valve shaft is threaded through in axis hole, fixture block is embedded in corresponding limiting slot, so that valve shaft and axis
The connection of seat gusset is more firm, and transmission effect is more preferable.
Preferably, being provided with cobalt base hard alloy layer on the inner wall of the valve seat.It is arranged on the inner wall of valve seat
There is cobalt base hard alloy layer, so that the sealing surface of valve seat is more wear-resistant, long service life.
Therefore, the big valve of a kind of ethylene cracking gas of the invention has following advantages: valve of the invention is in closure
Good airproof performance, sensitive to the switch control of valve, without friction between sealing element in opening-closing process, the insulation jacket of setting can be risen
It is acted on to effective anti-coking anti-leak, increases reliability when valve operation, the setting of protection against erosion retaining ring is so that in valve
It can effectively play a protective role to sealing surface of valve plate when standard-sized sheet, long service life.
Detailed description of the invention
Attached drawing 1 is a kind of main view of the invention.
Attached drawing 2 is a kind of cross-sectional view of the invention.
Attached drawing 3 is a kind of left view of the invention.
Attached drawing 4 is a kind of structural schematic diagram of the invention.
Attached drawing 5 is the main view of valve plate in the present invention.
Attached drawing 6 is the structural schematic diagram of valve plate in the present invention.
Attached drawing 7 is the schematic cross-sectional view of valve seat in the present invention.
Attached drawing 8 is the structural schematic diagram of protection against erosion retaining ring and fixed device in the present invention.
Attached drawing 9 is the schematic cross-sectional view of fixed station in the present invention.
Illustrate: 1- valve plate, 2- go out vapor interface, 3- actuator, 4- gear-box, and 5- is into vapor interface, 6- bracket, 7-
Upper axle bed, 8- filler, 9- bearing, 10- air inlet, 11- valve shaft, axle bed under 12-, 13- bearing cap, the gas outlet 14-, 15- axle bed
Gusset, 16- fixture block, 17- insulation jacket, 18- valve body, 19- protection against erosion retaining ring, 20- axis hole, 21- limiting slot, 22- valve seat, 23-
Fixed station, 24- slot, 25- screw hole, 26- bolt, 27- baffle, 28- retaining ring ontology, 29- torsional spring, 30- retaining groove, 31- inserted block, a-
The offset distance of valve shaft axis and valve axis, the offset distance of b- valve shaft axis and sealing surface of seat, β-valve seat axis of rotation
Angle between the axis of valve body.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment 1:
As shown in Fig. 1,2,3,5,6, a kind of big valve of ethylene cracking gas, including valve body 18 and gear-box 4, gear-box 4 pass through
Bracket 6 is fixed on valve body 18, high stability, and valve body 18 is forge piece, substantially increases the strength and stiffness of valve body 18, is increased
Service life and reliability are added, the actuator 3 for manipulating gear-box 4 are provided on gear-box 4, is provided in gear-box 4
Valve shaft 11, the rotation connection of valve shaft 11 are threaded through on valve body 18, and actuator 3 can drive the rotation of the gear in gear-box 4 to band
Dynamic valve shaft 11 rotates, and further includes the valve plate 1 being arranged in inside the middle chamber of valve body 18, valve body middle chamber is separated by valve plate
Inlet end and an outlet end is provided with axle bed gusset 15 on the side of valve plate 1, and axle bed gusset 15 is arranged in valve plate and is located at outlet end
On the back side, the quantity of axle bed gusset 15 is two, is provided with the axis hole 20 matched with valve shaft 11, axle bed muscle on axle bed gusset 15
Plate 15 plays the role of reinforcing support construction, while valve shaft 11 is threaded through in axis hole 20, and valve shaft 11 rotates energy band moving axis seat muscle
Plate 15 and valve plate 1 rotate simultaneously, and the two sides of axis hole 20 are provided with the limiting slot 21 in axle bed gusset 15, are arranged on valve shaft 11
There is the fixture block 16 matched with limiting slot 21, when valve shaft 11 is threaded through in axis hole 20, fixture block 16 is embedded in corresponding limiting slot 21
Interior, so that valve shaft 11 and the connection of axle bed gusset 15 are more firm, transmission effect is more preferable, is provided on the inner surface of valve body 18 and valve
The valve seat 22 that plate 1 matches, valve shaft 11 rotation drive valve plate 1 rotate, valve plate 1 matched with valve seat 22 realization valve unlatching or
It closes, the inner wall of valve seat 22 can may be implemented to be sealed against with the outer surface of valve plate 1, form sealing effect；Valve seat 22
Cobalt base hard alloy layer is provided on inner wall, so that the sealing surface of valve seat 22 is more wear-resistant, long service life.
Valve shaft 11 is fixed on valve body 18 close to one end of gear-box 4 by upper axle bed 7, between upper axle bed 7 and valve shaft 11
It is connected by bearing 9, the one end of valve shaft 11 far from gear-box 4 is fixed on valve body 18 by lower axle bed 12, lower axle bed 12 and valve
It is connected between axis 11 by bearing 9, lower axle bed 12 is equipped with bearing cap 13 far from one end of valve shaft 11, and bearing cap 13 passes through bolt
It is fixed on lower axle bed, lower axle bed 12 is equipped with bearing 9 far from one end of valve shaft 11 and covers, and the lid of bearing 9 is fixed on by bolt 26
On lower axle bed 12, bearing 9 is self-lubricating bearing 9, effectively reduces frictional force when valve shaft 11 rotates and valve greatly reduces
The switching torque of door, improves service life；Filler 8 is provided between upper axle bed 7 and valve shaft 11, lower axle bed 12 and valve shaft 11 are straight
It connects and is provided with filler 8, the setting of filler 8 can prevent the medium in valve body 18 from leaking outside, and the setting of filler 8 plays sealing and makees
With.
As shown in fig. 7, the axis of the axis runout valve body 18 of valve shaft 11, the offset distance of 11 axis of valve shaft and 18 axis of valve body
From for a, by 11 axis runout valve plate of valve shaft, 1 sealing surface known to the setting of axle bed gusset 15,11 axis of valve shaft and valve seat 22 are close
The offset distance of cover is b, and having angle between 22 axis of rotation of valve seat and the axis of valve body 18 is β, 22 axis of rotation of valve seat
For processing valve seat 22 when shaft centre line, form a three eccentricity structure, in this way setting so that valve is shown in a fully open operation when, valve
The sealing surface of plate 1 can completely disengage 22 sealing surface of valve seat, and when valve is gradually closed, 1 sealing surface of valve plate is relative to valve seat 22
Sealing surface gradually compresses, thus mechanical wear and scratch when completely eliminating valve closure, and sealing effect is good；Valve exists
When unlatching, the sealing surface of valve plate 1 can be detached from immediately 22 sealing surface of valve seat in the moment of unlatching, when the valve is closed, only close
The moment closed, 1 sealing surface of valve plate can just contact and compress 22 sealing surface of valve seat.
The side of valve body 18 is provided with into vapor interface 5, and the other side of valve body 18 is provided with out vapor interface 2, into steam
It is provided with the air inlet 10 being connected to inside valve body 18 in interface 5, is provided with is connected to inside valve body 18 in vapor interface 2 out
Gas outlet 14, the medium coking in valve body 18 are easily destroyed sealing surface, valve are made to be not closed completely, and generate leakage, therefore working
When by being passed through high-temperature steam into valve body 18 into vapor interface 5, medium coking can be prevented, steamed into the high temperature in valve body 18
Gas outlet 10 of the vapour from vapor interface 2 out is discharged；Vapor interface 2 passes through insulation jacket 17 and valve into vapor interface 5 and out
Body 18 connects, and the setting of insulation jacket 17 can play the role of anti-coking anti-leak, increase valve reliability of operation；It steams out
Vapour interface 2 and be two into the quantity of vapor interface 5, separates between two neighboring vapor interface there are two independent cavity,
Steam according to working condition requirement, can individually lead to steam, can also be passed through the steam of different pressures from spaced intermediate.
As shown in Fig. 4,8, the protection against erosion retaining ring for protecting valve plate 1 in valve wide open is provided on the inner wall of valve body 18
19, the input end of valve is arranged in protection against erosion retaining ring 19, and in valve wide open, protection against erosion retaining ring 19 and valve plate 1 are in same water
In plane, 19 semi-surrounding valve plate 1 of protection against erosion retaining ring plays a protective role to 1 sealing surface of valve plate, prevents medium from washing away valve plate 1 close
Cover increases the service life of valve；Protection against erosion retaining ring 19 is fixed on valve body 18 by fixed device, and fixed device includes
Retaining ring ontology 28 and the fixed station 23 being fixed on 18 inside two sidewalls of valve body, fixed station 23 are welded on 18 inner wall of valve body, Gu
Determine to be provided with slot 24 on the side of platform 23, the two sides of retaining ring ontology 28 are provided with the inserted block 31 matched with slot 24, fixed
Be correspondingly arranged on screw hole 25 on the side wall of platform 23 and inserted block 31, after retaining ring ontology 28 and 23 grafting of fixed station and by with screw hole
25 bolts 26 matched are fixedly connected, and the inserted block 31 of two sides is inserted into slot 24 by mobile retaining ring ontology 28, are then passed through
Inserted block 31 is fixed on fixed station 23 by bolt 26, so that the installation of protection against erosion retaining ring 19 is very firm, detachable maintaining replacement
Easily.
As shown in figure 9, being hinged with baffle 27 on the wall at 24 top of slot, baffle 27 is positioned close to 24 opening of slot,
The side far from opening is provided with retaining groove 30 corresponding with baffle 27,27 top of baffle and slot 24 on the wall at 24 top of slot
Torsional spring 29 is connected between on the wall at top, the height of baffle 27 is greater than the height of slot 24, is being fitted without protection against erosion retaining ring
When 19, baffle 27 is against on 24 underside wall of slot under the action of torsional spring 29, and medium can be effectively prevent to enter in slot 24, peace
When filling protection against erosion retaining ring 19, inserted block 31 overcomes the elastic force flap shutter 27 of torsional spring 29 to enter inside slot 24, while making baffle
In 27 insertion retaining grooves 30, so that baffle 27 does not impact the installation of retaining ring ontology 28.
It should be understood that being somebody's turn to do, examples are only for illustrating the present invention and not for limiting the scope of the present invention.In addition, it should also be understood that,
After having read the content of the invention lectured, those skilled in the art can make various modifications or changes to the present invention, these etc.
Valence form is also fallen within the scope of the appended claims of the present application.
Claims (10)
1. a kind of big valve of ethylene cracking gas, including valve body and gear-box, it is provided on the gear-box for manipulating tooth
The actuator of roller box is provided with valve shaft in the gear-box, and the valve shaft rotation connection is threaded through on valve body, and feature exists
In, further include the valve plate being arranged in inside the middle chamber of valve body, axle bed gusset is provided on the side of the valve plate, it is described
Axle bed gusset on be provided with the axis hole matched with valve shaft, be provided on the inner surface of the valve body and matched with valve plate
Valve seat.
2. the big valve of a kind of ethylene cracking gas according to claim 1, which is characterized in that the side of the valve body is set
It is equipped with into vapor interface, the other side of the valve body is provided with out vapor interface, described into the company of being provided in vapor interface
The air inlet of valve inner is passed to, described going out in vapor interface is provided with the gas outlet for being connected to valve inner.
3. the big valve of a kind of ethylene cracking gas according to claim 2, which is characterized in that it is described into vapor interface and
Vapor interface passes through insulation jacket and connect with valve body out.
4. the big valve of a kind of ethylene cracking gas according to claim 1, which is characterized in that the valve body is forging
Part.
5. the big valve of a kind of ethylene cracking gas according to claim 1 or 2 or 3, which is characterized in that valve shaft is close to gear
One end of case is fixed on valve body by upper axle bed, is connected between the upper axle bed and valve shaft by bearing, the valve shaft
One end far from gear-box is fixed on valve body by lower axle bed, is connected between the lower axle bed and valve shaft by bearing, institute
The lower axle bed stated is equipped with bearing cap far from one end of valve shaft.
6. the big valve of a kind of ethylene cracking gas according to claim 5, which is characterized in that the upper axle bed and valve shaft
Between be provided with filler, the lower axle bed and valve shaft are provided directly with filler.
7. the big valve of a kind of ethylene cracking gas according to claim 1 or 2 or 3, which is characterized in that the valve shaft
The axis of axis runout valve body has angle between valve seat axis of rotation and the axis of valve body.
8. the big valve of a kind of ethylene cracking gas according to claim 1 or 2 or 3, which is characterized in that the valve body
The protection against erosion retaining ring for protecting valve plate in valve wide open is provided on inner wall.
9. the big valve of a kind of ethylene cracking gas according to claim 8, which is characterized in that the protection against erosion retaining ring is logical
It crosses fixed device to be fixed on valve body, the fixation device includes retaining ring ontology and is fixed on consolidating on valve inner two sidewalls
Determine platform, be provided with slot on the side of the fixed station, the two sides of the retaining ring ontology are provided with to be matched with slot
Inserted block, is correspondingly arranged on screw hole on the side wall and inserted block of the fixed station, after the retaining ring ontology and fixed station grafting
And the bolt by matching with screw hole is fixedly connected.
10. the big valve of a kind of ethylene cracking gas according to claim 9, which is characterized in that at the top of the slot
Baffle is hinged on wall, the baffle plate setting is on the wall at the top of slot opening, the slot far from opening
Side is provided with retaining groove corresponding with baffle, on the wall at the top of the baffle top and slot between be connected with torsional spring, institute
The height for the baffle stated is greater than the height of slot.
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| CN201811053258.2A CN109027268B (en) | 2018-09-10 | 2018-09-10 | Cracking gas big valve of ethylene device |
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| CN201811053258.2A CN109027268B (en) | 2018-09-10 | 2018-09-10 | Cracking gas big valve of ethylene device |
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| CN109027268B CN109027268B (en) | 2020-03-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112594439A (en) * | 2020-09-29 | 2021-04-02 | 如皋市蓝鹰齿轮制造有限公司 | Multi-rotation type valve gear box convenient to disassemble and assemble and installation method thereof |
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| CN112594439A (en) * | 2020-09-29 | 2021-04-02 | 如皋市蓝鹰齿轮制造有限公司 | Multi-rotation type valve gear box convenient to disassemble and assemble and installation method thereof |
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|---|---|
| CN109027268B (en) | 2020-03-31 |
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