CN103225699B - Glasses valve and valve plate guide drive mechanism thereof - Google Patents
Glasses valve and valve plate guide drive mechanism thereof Download PDFInfo
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- CN103225699B CN103225699B CN201310108357.7A CN201310108357A CN103225699B CN 103225699 B CN103225699 B CN 103225699B CN 201310108357 A CN201310108357 A CN 201310108357A CN 103225699 B CN103225699 B CN 103225699B
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Abstract
The invention discloses a kind of glasses valve and the valve plate guide drive mechanism thereof that can adapt to dusty circumstances preferably.This valve plate guide drive mechanism comprises and to be arranged on above valve plate and for driving the valve plate suspension arrangement of this valve plate horizontal motion, and, to be arranged on below valve plate and when valve plate horizontal motion, along in glasses valve path direction, spacing valve plate guiding device to be carried out to described valve plate; Described valve plate suspension arrangement comprises the guiding element being fixed on valve plate top, this guiding element has the upper horizontally-guided face and lower horizontally-guided face that are parallel to each other for a pair, described upper horizontally-guided face is equipped with the chain extended along upper horizontally-guided face length direction, described lower horizontally-guided face is supported by the support roller be disposed on along valve plate horizontal motion direction on housing, this housing is also provided with the sprocket wheel with described chain engagement driving, the rotating shaft of this sprocket wheel connects rotating driving device.Said structure is formed and waves position structure with sprocket wheel and chain contact points, better adapts to dusty circumstances.
Description
Technical field
The present invention relates to glasses valve and valve plate guide drive mechanism thereof.
Background technique
According to regulation in " industrial enterprise's gas safety code (GB6222-2005) ", glasses valve (i.e. push-pull valve), as one partition apparatus relatively reliably, is widely used in all kinds of gas medium process pipe.In recent years, from energy-conservation, reduce discharging and environmental protection consider, the Purify Process of Blast Furnace of blast furnace process system, from before the two civilian purification craft of comparative maturity, tower literary composition purification craft, basis than wet purification techniques such as Xiao husband purification craft, develop into the dry type such as electric precipitation, bag-type dust Purify Process of Blast Furnace gradually, and glasses valve is as a kind of gas cutting device, also start to be widely used in all kinds of full-dry type blast furnace gas dust remover process pipe.However, the structure of existing glasses valve well can't meet its reliability requirement under high temperature, dust-laden condition, thus affects the normal operation of whole all dry-type dedusting process system, threatens blast furnace and normally produces.
For the problems referred to above, generally adopt the gas cutting mode that three eccentric butterfly valve and glasses valve combine at present, when namely connecting, butterfly valve is in off-position, then the pressure between butterfly valve and glasses valve to be laid down or to all pressing before and after glasses valve (when glasses valve rear portion is airtight), then open glasses valve and connect pipeline or equipment; During cut-out, first butterfly valve cuts out, and then close glasses valve, play the effect cutting off pipeline or off device.But, when the cut-out mode that butterfly valve adds glasses valve is applied in blast furnace gas fully-dried type dust pelletizing system, still ubiquity butterfly valve is not closed completely or stuck, dust-containing airflow, dust enter each moving part of glasses valve and occur stuck, and the problem such as the poorly sealed leakage gas of glasses valve valve plate.
Summary of the invention
First the present invention will provide a kind of glasses valve and valve seat thereof, and this glasses valve and valve seat thereof can avoid dust to enter the inside of fitting surface between valve plate and valve seat and valve seat to a certain extent, thus improves glasses valve to the adaptive faculty of dust-containing airflow.
For this reason, glasses valve of the present invention comprises: housing, is provided with the first pipeline for forming this glasses valve stream and second pipe in described housing, forms a gap can passed through for valve plate between the outlet of described first pipeline and the entrance of second pipe; Valve plate, the surface of described valve plate has for realizing conducting and blind bore face and real face respectively between the outlet and the entrance of second pipe of the first pipeline, and the both side surface of this valve plate is all provided with respectively along at least one deck seal ring that the outer rim in face, described hole and real face is arranged; Valve plate guide drive mechanism, described valve plate to be arranged on housing by this valve plate guide drive mechanism and to realize between the selectable outlet at the first pipeline and the entrance of second pipe switching under conducting and closed two states under the control of this valve plate guide drive mechanism; Movable valve seat, described movable valve seat to be nested with on the first pipeline and along the axial motion of the first pipeline under effect at axial actuating mechanism through dynamic seal, this movable valve seat has the sealing ring flat-plate carrying out crush seal with the seal ring on surface, valve plate side and coordinate; And fixed valve base, described fixed valve base to be fixed on second pipe and to have the sealing ring flat-plate carrying out crush seal with the seal ring on valve plate opposite side surface and coordinate; The inner side described movable valve seat and/or fixed valve base being positioned at its sealing ring flat-plate is provided with venting gas appliance, the input end of this venting gas appliance is connected with the intake interface be arranged on housing by suction tude, output terminal with to be arranged on sealing ring flat-plate and to be connected to the exhaust port of sealing ring flat-plate with the fitting surface conducting of valve plate, described exhaust port is positioned at the outside of innermost layer seal ring.Based on the glasses valve of said structure, its movable valve seat compresses valve plate by under the effect of axial actuating mechanism, thus valve plate is clamped between the sealing ring flat-plate in movable valve seat and the sealing ring flat-plate on fixed valve base, realize valve plate and movable valve seat and and fixed valve base between sealing, when needing to carry out the switching between conducting and closed two states to glasses valve, first valve plate to be unclamped by axial actuating mechanism, at this moment, in order to avoid dust to enter between valve plate and movable valve seat and/or and fixed valve base between fitting surface and movable valve seat and/or fixed valve base inside and adverse influence is caused to the reliability of glasses valve, the air-flow produced by venting gas appliance prevent dust to enter between valve plate and movable valve seat to a certain extent and/or and fixed valve base between fitting surface and movable valve seat and/or fixed valve base inner, improve the reliability of glasses valve under dusty circumstances thus.
From security standpoint, the gas that described venting gas appliance uses is preferably the industrial conventional safe gas such as nitrogen, argon gas; Certainly, those skilled in the art also according to the concrete Environmental Conditions of this glasses valve, can adopt suitable gas.
As a kind of concrete structure of above-mentioned venting gas appliance, if movable valve seat is provided with described venting gas appliance, then this venting gas appliance comprises the annular inflatable casing arranged around the first pipeline circumference, and the sealing ring flat-plate of movable valve seat forms a sidewall of this annular inflatable casing; And/or if fixed valve base is provided with described venting gas appliance, then this venting gas appliance comprises the annular inflatable casing arranged around second pipe circumference, and the sealing ring flat-plate of fixed valve base forms a sidewall of this annular inflatable casing.Obviously, the structural design of above-mentioned annular inflatable casing can effectively prevent dust from entering movable valve seat and/or fixed valve base inside.
As the further improvement to technique scheme, the sealing surface of the sealing ring flat-plate on described movable valve seat and/or fixed valve base is provided with the annular row air drain that the edge along described seal ring is arranged, and the circumference interval, bottom of this annular row air drain is furnished with multiple described exhaust port.More uniform for the gas edge along seal ring outwards can be discharged with the form of annular by annular row air drain and at the bottom of this annular row air drain circumference spaced apart multiple exhaust port, better stop dust.
As the further improvement to technique scheme, between described movable valve seat and housing, be connected with the bellows displacement compensation device be nested with on the first pipeline; Movable valve seat is provided with bellows displacement compensation device suction tude, this bellows displacement compensation device input end of suction tude is connected with the bellows displacement compensation device intake interface be arranged on housing, and output terminal is then communicated by the inner chamber of the fitting surface between movable valve seat with the first pipeline with bellows displacement compensation device.This design can effectively prevent dust from entering in the inner chamber of bellows displacement compensation device, improves the working life of bellows displacement compensation device.Herein to the inflation design still industrial conventional safe gas such as suggestion use nitrogen, argon gas etc. of bellows displacement compensation device; Certainly, those skilled in the art also according to the concrete Environmental Conditions of this glasses valve, can adopt suitable gas.
As the further improvement to technique scheme, described axial actuating mechanism comprises executing device and being connected to this outside housing and executes driving component between device and movable valve seat; Described driving component comprises at least three parallel with the first pipeline and uniform along the first pipeline periphery transmission shafts, and housing is stretched out and connect and execute device outward in one end of these transmission shafts, and the other end is connected with movable valve seat respectively; On each transmission shaft, all cover has Compress Spring, the two ends of Compress Spring respectively with movable valve seat and body contact.Adopting the above-mentioned composite structure executed device and add Compress Spring, performing unclamping and compressing operation of glasses valve valve plate by executing device, sealing then relies on Compress Spring to be master, executes device is auxiliary, has complementary capabilities by force, seals reliable advantage.
As the further improvement to technique scheme, between described transmission shaft and housing, be provided with dynamic seal apparatus.
As the further improvement to technique scheme, the end of described each transmission shaft is all through movable valve seat and connect can the reverse limit stoper of axial adjustment.Wherein, described reverse limit stoper can adopt postive stop baffle or stop nut.
As the further improvement to technique scheme, the inner side described movable valve seat and/or fixed valve base being positioned at its sealing ring flat-plate is provided with water cooling plant, and the input end of this water cooling plant is connected with the water inlet interface be arranged on housing and drainage interface with waste pipe respectively by intake pipe with output terminal.Above-mentioned water-cooling structure design can make glasses valve better adapt to hot environment.
As a kind of concrete structure of water cooling plant, if movable valve seat is provided with described water cooling plant, then this water cooling plant comprises around the first install pipeline and the annular water cooling tube that is connected with intake pipe and waste pipe respectively of two ends; And/or if fixed valve base is provided with described water cooling plant, then this water cooling plant comprises and arranging and the annular water cooling tube that is connected with intake pipe and waste pipe respectively of two ends around second pipe.
As the further improvement to technique scheme, described valve plate guide drive mechanism comprises and to be arranged on above valve plate and for driving the valve plate suspension arrangement of this valve plate horizontal motion, and, to be arranged on below valve plate and when valve plate horizontal motion, axially spacing valve plate guiding device to be carried out to described valve plate along glasses valve stream; Described valve plate suspension arrangement comprises the guiding element being fixed on valve plate top, this guiding element has the upper horizontally-guided face and lower horizontally-guided face that are parallel to each other for a pair, described upper horizontally-guided face is equipped with the chain extended along upper horizontally-guided face length direction, described lower horizontally-guided face is supported by the support roller be disposed on along valve plate horizontal motion direction on housing, this housing is also provided with the sprocket wheel with described chain engagement driving, the rotating shaft of this sprocket wheel connects rotating driving device.Above-mentioned this valve plate guide drive mechanism defines waves position structure centered by sprocket wheel and chain contact points, during contact position fouling namely between support roller and guiding element, valve plate is by under the effect of sprocket chain strip transmission mechanism, automatically the contact points around sprocket wheel and chain swings, avoid valve plate cannot action, thus better adapt to dusty circumstances.
Glasses valve valve seat provided by the present invention, it comprises the sealing ring flat-plate carrying out crush seal with the seal ring on surface, glasses valve valve plate side and coordinate, the inner side described valve seat being positioned at its sealing ring flat-plate is provided with venting gas appliance, the input end of this venting gas appliance is connected with the intake interface be arranged on glasses valve housing by suction tude, output terminal with to be arranged on sealing ring flat-plate and to be connected to the exhaust port of sealing ring flat-plate with the fitting surface conducting of valve plate, described exhaust port is positioned at the outside of innermost layer seal ring.As a kind of concrete structure of venting gas appliance in glasses valve valve seat, described venting gas appliance comprises the annular inflatable casing be arranged on valve base inner wall, and described sealing ring flat-plate forms a sidewall of this annular inflatable casing.Obviously, above-mentioned glasses valve valve seat both can refer to the movable valve seat of glasses valve, can refer to again the fixed valve base of glasses valve.
Another kind will be provided below the present invention can to adapt to glasses valve and the valve plate guide drive mechanism thereof of dusty circumstances preferably.
For this reason, this glasses valve comprises: housing, is provided with the first pipeline for forming this glasses valve stream and second pipe in described housing, forms a gap can passed through for valve plate between the outlet of described first pipeline and the entrance of second pipe; Valve plate, the surface of described valve plate has for realizing conducting and blind bore face and real face respectively between the outlet and the entrance of second pipe of the first pipeline, and the both side surface of this valve plate is all provided with respectively along at least one deck seal ring that the outer rim in face, described hole and real face is arranged; Valve plate guide drive mechanism, described valve plate to be arranged on housing by this valve plate guide drive mechanism and to realize between the selectable outlet at the first pipeline and the entrance of second pipe switching under conducting and closed two states under the control of this valve plate guide drive mechanism; Movable valve seat, described movable valve seat to be nested with on the first pipeline and along the axial motion of the first pipeline under effect at axial actuating mechanism through dynamic seal, this movable valve seat has the sealing ring flat-plate carrying out crush seal with the seal ring on surface, valve plate side and coordinate; And fixed valve base, described fixed valve base to be fixed on second pipe and to have the sealing ring flat-plate carrying out crush seal with the seal ring on valve plate opposite side surface and coordinate; Described valve plate guide drive mechanism comprises and to be arranged on above valve plate and for driving the valve plate suspension arrangement of this valve plate horizontal motion, and, to be arranged on below valve plate and when valve plate horizontal motion, axially spacing valve plate guiding device to be carried out to described valve plate along glasses valve stream; Described valve plate suspension arrangement comprises the guiding element being fixed on valve plate top, this guiding element has the upper horizontally-guided face and lower horizontally-guided face that are parallel to each other for a pair, described upper horizontally-guided face is equipped with the chain extended along upper horizontally-guided face length direction, described lower horizontally-guided face is supported by the support roller be disposed on along valve plate horizontal motion direction on housing, this housing is also provided with the sprocket wheel with described chain engagement driving, the rotating shaft of this sprocket wheel connects rotating driving device.Above-mentioned this valve plate guide drive mechanism defines waves position structure centered by sprocket wheel and chain contact points, during contact position fouling namely between support roller and guiding element, valve plate is by under the effect of sprocket chain strip transmission mechanism, automatically the contact points around sprocket wheel and chain swings, avoid valve plate cannot action, thus better adapt to dusty circumstances.
As a kind of concrete structure of valve plate guiding device, described valve plate guiding device comprises the first limited part and the second limited part that are fixed on and are oppositely arranged bottom valve plate and in the axially front and back of glasses valve stream, described housing is fixed with the first spacing guiding element and the second spacing guiding element that coordinate with the first limited part and the second limited part respectively, described first spacing guiding element and the first limited part form proal first position-limiting unit of axis preventing valve plate along glasses valve stream, described second spacing guiding element and the second limited part form the second position-limiting unit preventing valve plate from moving backward along the axis of glasses valve stream.Those skilled in the art obviously can understand, and except employing said structure, valve plate guiding device also can adopt other structure.
As the further improvement to technique scheme, between described movable valve seat and housing, be connected with the bellows displacement compensation device be nested with on the first pipeline; Movable valve seat is provided with bellows displacement compensation device suction tude, this bellows displacement compensation device input end of suction tude is connected with the bellows displacement compensation device intake interface be arranged on housing, and output terminal is then communicated by the inner chamber of the fitting surface between movable valve seat with the first pipeline with bellows displacement compensation device.
As the further improvement to technique scheme, described axial actuating mechanism comprises executing device and being connected to this outside housing and executes driving component between device and movable valve seat; Described driving component comprises at least three parallel with the first pipeline and uniform along the first pipeline periphery transmission shafts, and housing is stretched out and connect and execute device outward in one end of these transmission shafts, and the other end is connected with movable valve seat respectively; On each transmission shaft, all cover has Compress Spring, the two ends of Compress Spring respectively with movable valve seat and body contact.
As the further improvement to technique scheme, between described transmission shaft and housing, be provided with dynamic seal apparatus.
As the further improvement to technique scheme, the end of described each transmission shaft is all through movable valve seat and connect can the reverse limit stoper of axial adjustment.Wherein, described reverse limit stoper can adopt postive stop baffle or stop nut.
As the further improvement to technique scheme, the inner side described movable valve seat and/or fixed valve base being positioned at its sealing ring flat-plate is provided with water cooling plant, and the input end of this water cooling plant is connected with the water inlet interface be arranged on housing and drainage interface with waste pipe respectively by intake pipe with output terminal.
As a kind of concrete structure of water cooling plant, if movable valve seat is provided with described water cooling plant, then this water cooling plant comprises around the first install pipeline and the annular water cooling tube that is connected with intake pipe and waste pipe respectively of two ends; And/or if fixed valve base is provided with described water cooling plant, then this water cooling plant comprises and arranging and the annular water cooling tube that is connected with intake pipe and waste pipe respectively of two ends around second pipe.
Glasses valve valve plate guide drive mechanism of the present invention comprises and to be arranged on above valve plate and for driving the valve plate suspension arrangement of this valve plate horizontal motion, and, to be arranged on below valve plate and when valve plate horizontal motion, along in glasses valve path direction, spacing valve plate guiding device to be carried out to described valve plate; Described valve plate suspension arrangement comprises the guiding element being fixed on valve plate top, this guiding element has the upper horizontally-guided face and lower horizontally-guided face that are parallel to each other for a pair, described upper horizontally-guided face is equipped with the chain extended along upper horizontally-guided face length direction, described lower horizontally-guided face is supported by the support roller be disposed on along valve plate horizontal motion direction on housing, this housing is also provided with the sprocket wheel with described chain engagement driving, the rotating shaft of this sprocket wheel connects rotating driving device.
As a kind of concrete structure of valve plate guiding device, described valve plate guiding device comprises the first limited part and the second limited part that are fixed on and are oppositely arranged bottom valve plate and in the axially front and back of glasses valve stream, described housing is fixed with the first spacing guiding element and the second spacing guiding element that coordinate with the first limited part and the second limited part respectively, described first spacing guiding element and the first limited part form proal first position-limiting unit of axis preventing valve plate along glasses valve stream, described second spacing guiding element and the second limited part form the second position-limiting unit preventing valve plate from moving backward along the axis of glasses valve stream.
The bellows displacement compensation device of a kind of glasses valve and glasses valve movable valve seat will be provided below the present invention, enter bellows displacement compensation device inner chamber to prevent dust.
For this reason, this glasses valve comprises: housing, is provided with the first pipeline for forming this glasses valve stream and second pipe in described housing, forms a gap can passed through for valve plate between the outlet of described first pipeline and the entrance of second pipe; Valve plate, the surface of described valve plate has for realizing conducting and blind bore face and real face respectively between the outlet and the entrance of second pipe of the first pipeline, and the both side surface of this valve plate is all provided with respectively along at least one deck seal ring that the outer rim in face, described hole and real face is arranged; Valve plate guide drive mechanism, described valve plate to be arranged on housing by this valve plate guide drive mechanism and to realize between the selectable outlet at the first pipeline and the entrance of second pipe switching under conducting and closed two states under the control of this valve plate guide drive mechanism; Movable valve seat, described movable valve seat to be nested with on the first pipeline and along the axial motion of the first pipeline under effect at axial actuating mechanism through dynamic seal, this movable valve seat has the sealing ring flat-plate carrying out crush seal with the seal ring on surface, valve plate side and coordinate, further, the bellows displacement compensation device be nested with on the first pipeline is connected with between described movable valve seat and housing; And fixed valve base, described fixed valve base to be fixed on second pipe and to have the sealing ring flat-plate carrying out crush seal with the seal ring on valve plate opposite side surface and coordinate; Movable valve seat is provided with bellows displacement compensation device suction tude, this bellows displacement compensation device input end of suction tude is connected with the bellows displacement compensation device intake interface be arranged on housing, and output terminal is then communicated by the inner chamber of the fitting surface between movable valve seat with the first pipeline with bellows displacement compensation device.
Between movable valve seat and housing, connecting sleeve is placed in the Main Function of the bellows displacement compensation device on the first pipeline, is to prevent gas from revealing between movable valve seat and the first pipeline.When arranging bellows displacement compensation device suction tude in movable valve seat, this bellows displacement compensation device input end of suction tude is connected with the bellows displacement compensation device intake interface be arranged on housing, after output terminal is then communicated with the inner chamber of bellows displacement compensation device by the fitting surface between movable valve seat with the first pipeline, namely be that the inner chamber of bellows displacement compensation device is communicated with the bellows displacement compensation device intake interface on housing, dust is stoped to enter the inner chamber of bellows displacement compensation device by inflating produced air pressure in the inner chamber of bellows displacement compensation device thus, improve the working life of bellows displacement compensation device.
Obviously, herein to the inflation design still industrial conventional safe gas such as suggestion use nitrogen, argon gas etc. of bellows displacement compensation device; Certainly, those skilled in the art also according to the concrete Environmental Conditions of this glasses valve, can adopt suitable gas.
As the further improvement to technique scheme, described axial actuating mechanism comprises executing device and being connected to this outside housing and executes driving component between device and movable valve seat; Described driving component comprises at least three parallel with the first pipeline and uniform along the first pipeline periphery transmission shafts, and housing is stretched out and connect and execute device outward in one end of these transmission shafts, and the other end is connected with movable valve seat respectively; On each transmission shaft, all cover has Compress Spring, the two ends of Compress Spring respectively with movable valve seat and body contact.
As the further improvement to technique scheme, between described transmission shaft and housing, be provided with dynamic seal apparatus.
As the further improvement to technique scheme, the end of described each transmission shaft is all through movable valve seat and connect can the reverse limit stoper of axial adjustment.Wherein, described reverse limit stoper adopts postive stop baffle or stop nut.
As the further improvement to technique scheme, the inner side described movable valve seat and/or fixed valve base being positioned at its sealing ring flat-plate is provided with water cooling plant, and the input end of this water cooling plant is connected with the water inlet interface be arranged on housing and drainage interface with waste pipe respectively by intake pipe with output terminal.
As a kind of concrete structure of water cooling plant, if movable valve seat is provided with described water cooling plant, then this water cooling plant comprises around the first install pipeline and the annular water cooling tube that is connected with intake pipe and waste pipe respectively of two ends; And/or if fixed valve base is provided with described water cooling plant, then this water cooling plant comprises and arranging and the annular water cooling tube that is connected with intake pipe and waste pipe respectively of two ends around second pipe.
The bellows displacement compensation device of glasses valve movable valve seat of the present invention, comprises and to be connected between glasses valve movable valve seat and housing and to be nested with the bellows displacement compensation device on the first pipeline; Described movable valve seat is provided with bellows displacement compensation device suction tude, this bellows displacement compensation device input end of suction tude is connected with the bellows displacement compensation device intake interface be arranged on housing, and output terminal is then communicated by the inner chamber of the fitting surface between movable valve seat with the first pipeline with bellows displacement compensation device.
Certainly, except the bellows displacement compensation device of above-mentioned glasses valve movable valve seat, the bellows displacement compensation device of glasses valve movable valve seat of the present invention can also adopt following structure: comprise and to be connected between glasses valve movable valve seat and housing and to be nested with the bellows displacement compensation device on the first pipeline; The inner chamber of this bellows displacement compensation device is communicated with the bellows displacement compensation device intake interface on housing by the bellows displacement compensation device suction tude arranged in the housing.
The present invention improves the glasses valve of valve plate sealing reliability and the axial actuating mechanism of movable valve seat thereof by providing a kind of below.
For this reason, this glasses valve comprises: housing, is provided with the first pipeline for forming this glasses valve stream and second pipe in described housing, forms a gap can passed through for valve plate between the outlet of described first pipeline and the entrance of second pipe; Valve plate, the surface of described valve plate has for realizing conducting and blind bore face and real face respectively between the outlet and the entrance of second pipe of the first pipeline, and the both side surface of this valve plate is all provided with respectively along at least one deck seal ring that the outer rim in face, described hole and real face is arranged; Valve plate guide drive mechanism, described valve plate to be arranged on housing by this valve plate guide drive mechanism and to realize between the selectable outlet at the first pipeline and the entrance of second pipe switching under conducting and closed two states under the control of this valve plate guide drive mechanism; Movable valve seat, described movable valve seat to be nested with on the first pipeline and along the axial motion of the first pipeline under effect at axial actuating mechanism through dynamic seal, this movable valve seat has the sealing ring flat-plate carrying out crush seal with the seal ring on surface, valve plate side and coordinate; And fixed valve base, described fixed valve base to be fixed on second pipe and to have the sealing ring flat-plate carrying out crush seal with the seal ring on valve plate opposite side surface and coordinate; Described axial actuating mechanism comprises executing device and being connected to this outside housing and executes driving component between device and movable valve seat; Described driving component comprises at least three parallel with the first pipeline and uniform along the first pipeline periphery transmission shafts, and housing is stretched out and connect and execute device outward in one end of these transmission shafts, and the other end is connected with movable valve seat respectively; On each transmission shaft, all cover has Compress Spring, the two ends of Compress Spring respectively with movable valve seat and body contact.Adopting the above-mentioned composite structure executed device and add Compress Spring, performing unclamping and compressing operation of glasses valve valve plate by executing device, sealing then relies on Compress Spring to be master, executes device is auxiliary, has complementary capabilities by force, seals reliable advantage.
As the further improvement to technique scheme, between described transmission shaft and housing, be provided with dynamic seal apparatus.
As the further improvement to technique scheme, the end of each transmission shaft all through movable valve seat and connect can the reverse limit stoper of axial adjustment.Wherein, described reverse limit stoper adopts postive stop baffle or stop nut.
As the further improvement to technique scheme, described movable valve seat and/or fixed valve base are positioned at its sealing ring flat-plate inner side be provided with water cooling plant, the input end of this water cooling plant is connected with the water inlet interface be arranged on housing and drainage interface with waste pipe respectively by intake pipe with output terminal.
As a kind of concrete structure of water cooling plant, if movable valve seat is provided with described water cooling plant, then this water cooling plant comprises around the first install pipeline and the annular water cooling tube that is connected with intake pipe and waste pipe respectively of two ends; And/or if fixed valve base is provided with described water cooling plant, then this water cooling plant comprises and arranging and the annular water cooling tube that is connected with intake pipe and waste pipe respectively of two ends around second pipe.
The axial actuating mechanism of glasses valve movable valve seat of the present invention, comprise executing device and being connected to this outside housing and execute driving component between device and movable valve seat, described driving component comprises at least three parallel with the first pipeline and uniform along the first pipeline periphery transmission shafts, housing is stretched out and connect and execute device outward in one end of these transmission shafts, and the other end is connected with movable valve seat respectively; On each transmission shaft, all cover has Compress Spring, the two ends of Compress Spring respectively with movable valve seat and body contact.
As the further improvement to technique scheme, between described transmission shaft and housing, be provided with dynamic seal apparatus.
As the further improvement to technique scheme, the end of each transmission shaft is all through movable valve seat and connect can the reverse limit stoper of axial adjustment.Wherein, described reverse limit stoper adopts postive stop baffle or stop nut.
Also to provide a kind of glasses valve and valve seat water cooling plant thereof below the present invention, better adapt to hot environment to make glasses valve.
For this reason, this glasses valve comprises: housing, is provided with the first pipeline for forming this glasses valve stream and second pipe in described housing, forms a gap can passed through for valve plate between the outlet of described first pipeline and the entrance of second pipe; Valve plate, the surface of described valve plate has for realizing conducting and blind bore face and real face respectively between the outlet and the entrance of second pipe of the first pipeline, and the both side surface of this valve plate is all provided with respectively along at least one deck seal ring that the outer rim in face, described hole and real face is arranged; Valve plate guide drive mechanism, described valve plate to be arranged on housing by this valve plate guide drive mechanism and to realize between the selectable outlet at the first pipeline and the entrance of second pipe switching under conducting and closed two states under the control of this valve plate guide drive mechanism; Movable valve seat, described movable valve seat to be nested with on the first pipeline and along the axial motion of the first pipeline under effect at axial actuating mechanism through dynamic seal, this movable valve seat has the sealing ring flat-plate carrying out crush seal with the seal ring on surface, valve plate side and coordinate; And fixed valve base, described fixed valve base to be fixed on second pipe and to have the sealing ring flat-plate carrying out crush seal with the seal ring on valve plate opposite side surface and coordinate; The inner side described movable valve seat and/or fixed valve base being positioned at its sealing ring flat-plate is provided with water cooling plant, and the input end of this water cooling plant is connected with the water inlet interface be arranged on housing and drainage interface with waste pipe respectively by intake pipe with output terminal.Above-mentioned water-cooling structure design can make glasses valve better adapt to hot environment.
As a kind of concrete structure of water cooling plant, if movable valve seat is provided with described water cooling plant, then this water cooling plant comprises around the first install pipeline and the annular water cooling tube that is connected with intake pipe and waste pipe respectively of two ends; And/or if fixed valve base is provided with described water cooling plant, then this water cooling plant comprises and arranging and the annular water cooling tube that is connected with intake pipe and waste pipe respectively of two ends around second pipe.
As the further improvement to technique scheme, comprise and to be connected between glasses valve movable valve seat and housing and to be nested with the bellows displacement compensation device on the first pipeline; The inner chamber of this bellows displacement compensation device is communicated with the bellows displacement compensation device intake interface on housing by the bellows displacement compensation device suction tude arranged in the housing.
Glasses valve valve seat water cooling plant of the present invention, the inner side described glasses valve valve seat being positioned at its sealing ring flat-plate is provided with water cooling plant, and the input end of this water cooling plant is connected with the water inlet interface be arranged on housing and drainage interface with waste pipe respectively by intake pipe with output terminal.
As a kind of concrete structure of water cooling plant, described water cooling plant comprises and arranging and the annular water cooling tube that is connected with intake pipe and waste pipe respectively of two ends around glasses valve stream periphery.
Below in conjunction with the drawings and specific embodiments, the present invention is described further.The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of glasses valve of the present invention.
Fig. 2 is the structural representation of valve plate guide drive mechanism in glasses valve of the present invention.
Fig. 3 is the schematic diagram of movable valve seat one cross section in glasses valve of the present invention.
Embodiment
Glasses valve as shown in Figures 1 to 3, comprise: housing 1, the first pipeline 2 for forming this glasses valve stream and second pipe 3 being installed in described housing 1, between the outlet of described first pipeline 2 and the entrance of second pipe 3, forming a gap can passed through for valve plate 4; Valve plate 4, the surface of described valve plate 4 has for realizing conducting and blind bore face 4a and real face 4b respectively between the outlet and the entrance of second pipe 3 of the first pipeline 2, and the both side surface of this valve plate 4 is all provided with respectively along at least one deck seal ring 401 that the outer rim of described hole face 4a and real face 4b is arranged; Valve plate guide drive mechanism, described valve plate 4 to be arranged on housing 1 by this valve plate guide drive mechanism and to switch realize conducting and closed two states between the selectable outlet at the first pipeline 2 and the entrance of second pipe 3 under the control of this valve plate guide drive mechanism under; Movable valve seat 5, described movable valve seat 5 to be nested with on the first pipeline 2 and along the axial motion of the first pipeline 2 under effect at axial actuating mechanism through dynamic seal 7, this movable valve seat 5 has the sealing ring flat-plate 501 carrying out crush seal with the seal ring 401 on surface, valve plate 4 side and coordinate, further, the bellows displacement compensation device 9 be nested with on the first pipeline 2 is connected with between described movable valve seat 5 and housing 1; And fixed valve base 6, described fixed valve base 6 to be fixed on second pipe 3 and to have the sealing ring flat-plate 601 carrying out crush seal with the seal ring 401 on valve plate 4 opposite side surface and coordinate.On this architecture basics, the present invention has carried out following many places respectively and has improved, and improves the stability of glasses valve in high temperature, dusty circumstances.
First, the inner side that the present invention is positioned at its sealing ring flat-plate in described movable valve seat 5 and fixed valve base 6 is provided with venting gas appliance respectively, the input end of this venting gas appliance is connected with the intake interface 8 be arranged on housing 1 by suction tude 21, output terminal with to be arranged on sealing ring flat-plate and to be connected to the exhaust port of sealing ring flat-plate with the fitting surface conducting of valve plate 4, described exhaust port is positioned at the outside of innermost layer seal ring 401.Specifically, as shown in Figure 1,3, movable valve seat 5 is provided with described venting gas appliance, this venting gas appliance comprises the annular inflatable casing 5a arranged around the first pipeline 2 circumference, and the sealing ring flat-plate 501 of movable valve seat 5 forms a sidewall of this annular inflatable casing 5a; The sealing surface of sealing ring flat-plate 501 is provided with the annular row air drain 503 that the edge along described seal ring 401 is arranged, and the circumferential interval, bottom of this annular row air drain 503 is furnished with multiple described exhaust port 502; Same, fixed valve base 6 is provided with described venting gas appliance, and this venting gas appliance comprises the annular inflatable casing 6a arranged around second pipe 3 circumference, and the sealing ring flat-plate 601 of fixed valve base 6 forms a sidewall of this annular inflatable casing 6a; The sealing surface of sealing ring flat-plate 601 is provided with equally the annular row air drain (in figure non-label) that the edge along described seal ring 401 is arranged, the circumferential interval, bottom of this annular row air drain is furnished with multiple described exhaust port 602.Easy understand, the design such as above-mentioned annular inflatable casing and annular row air drain is only the good structural type of one realizing venting gas appliance effect, obviously, venting gas appliance of the present invention also can adopt other structures, such as carry out alternate collar shaped inflatable casing with annular inflatable tube, and the structure of multiple valve be inserted in exhaust port is set on annular inflatable tube.Because described exhaust port to be positioned on sealing ring flat-plate and to the fitting surface conducting of sealing ring flat-plate and valve plate 4, therefore, the gas (preferably using nitrogen) of venting gas appliance discharge outwards flows out from the exhaust port on sealing ring flat-plate, it is inner that the air-flow formed can hinder dust to enter fitting surface between valve plate 4 and movable valve seat 5 and fixed valve base 6 and movable valve seat 5 and fixed valve base 6 to a certain extent, improves the reliability of glasses valve under dusty circumstances thus.
Secondly, the present invention has carried out following innovation design to valve plate guide drive mechanism: as shown in Figure 1, 2, newly-designed valve plate guide drive mechanism comprises and to be arranged on above valve plate 4 and for driving the valve plate suspension arrangement of this valve plate 4 horizontal motion, and, to be arranged on below valve plate 4 and when valve plate 4 horizontal motion, axially spacing valve plate guiding device to be carried out to described valve plate 4 along glasses valve stream; Described valve plate suspension arrangement comprises the guiding element 16 being fixed on valve plate 4 top, this guiding element 16 has the upper horizontally-guided face 1601 and lower horizontally-guided face 1602 that are parallel to each other for a pair, described upper horizontally-guided face 1601 is equipped with the chain 17 extended along upper horizontally-guided face 1601 length direction, described lower horizontally-guided face 1602 is supported by the support roller 19 be disposed on housing 1 along valve plate horizontal motion direction, this housing 1 is also provided with the sprocket wheel 18 with described chain 17 engagement driving, the rotating shaft of this sprocket wheel 18 connects rotating driving device.Wherein, as the concrete structure of valve plate guiding device, this valve plate guiding device comprises the first limited part 24a and the second limited part 24b that are fixed on and are oppositely arranged bottom valve plate 4 and in the axially front and back of glasses valve stream, described housing 1 is fixed with the first spacing guiding element 25a and the second spacing guiding element 25b that coordinate with the first limited part 24a and the second limited part 24b respectively, described first spacing guiding element 25a and the first limited part 24a forms proal first position-limiting unit of axis preventing valve plate 4 along glasses valve stream, described second spacing guiding element 25b and the second limited part 24b forms the second position-limiting unit preventing valve plate 4 from moving backward along the axis of glasses valve stream.The effect of valve plate guiding device prevents valve plate 4 from offseting in the axially generation of glasses valve stream, to this, except the above-mentioned concrete structure of employing, those skilled in the art are easy to the limit method expecting other, such as directly in the both side surface bottom valve plate 4, arrange guide roller etc.
Above-mentioned this valve plate guide drive mechanism defines waves position structure centered by sprocket wheel 18 with chain 17 contact points, during contact position fouling between support roller 19 and guiding element 16, valve plate 4 can under the effect of sprocket chain strip transmission mechanism, automatically swing around the contact points of sprocket wheel 18 with chain 17, prevent valve plate 4 stuck.On this basis, also can further the center of valve plate suspension arrangement middle sprocket 18 and the center of one of them support roller 19 be arranged on the position being centrally located at same vertical line with glasses valve stream (as shown in Figure 2), like this, during contact position fouling between support roller 19 and guiding element 16, around sprocket wheel 18 and the swing of chain 17 contact points, valve plate 4 can guarantee that the relative valve plate sealing station that it sets of this valve plate 4 does not produce obvious deflection under the effect of sprocket chain strip transmission mechanism.
In addition, as shown in Figure 1, the present invention has also carried out following improvement to the structure of the bellows displacement compensation device 9 of glasses valve movable valve seat: described movable valve seat 5 is provided with bellows displacement compensation device suction tude 10, this bellows displacement compensation device input end of suction tude 10 is connected with the bellows displacement compensation device intake interface 11 be arranged on housing 1, and output terminal is then communicated with the inner chamber of bellows displacement compensation device 9 by the fitting surface between movable valve seat 5 with the first pipeline 2.Like this, namely be that the inner chamber of bellows displacement compensation device 9 is communicated with the bellows displacement compensation device intake interface 11 on housing 1 by the bellows displacement compensation device suction tude 10 arranged within the case 1, gas (being preferably nitrogen) is inputted by external air source to bellows displacement compensation device intake interface 11 in glasses valve using process, air pressure thus by being formed in bellows displacement compensation device 9 inner chamber stops dust to enter the inner chamber of bellows displacement compensation device 9, improves the working life of bellows displacement compensation device 9.Bellows displacement compensation device suction tude 10 is preferably arranged by said structure, the fitting surface place be so in fact also equivalent between movable valve seat 5 and the first pipeline 2 has set up place hermetic seal, can effectively stop dust to enter the inner chamber of bellows displacement compensation device 9.But to those skilled in the art, bellows displacement compensation device suction tude 10 also can not be arranged in movable valve seat 5, but is directly connected between bellows displacement compensation device 9 and housing 1.
As shown in Figure 1, in the present invention, the axial actuating mechanism of glasses valve movable valve seat specifically adopts following structure: the axial actuating mechanism of glasses valve movable valve seat comprises executing device and being connected to this outside housing 1 and executes driving component between device and movable valve seat 5, described driving component comprises at least three parallel with the first pipeline 2 and uniform along the first pipeline 2 periphery transmission shafts 1201, one end of these transmission shafts 1201 is stretched out housing 1 outer also connection and is executed device, and the other end is connected with movable valve seat 5 respectively; On each transmission shaft 1201, all cover has Compress Spring 1202, and the two ends of Compress Spring 1202 contact with housing 1 with movable valve seat 5 respectively.Adopt the above-mentioned composite structure executed device and add Compress Spring 1202, unclamping and compressing operation of glasses valve valve plate is performed by executing device, sealing then relies on Compress Spring 1202 to be master, executes device is auxiliary, there is complementary capabilities strong (compensating the asynchronous impact on valve plate sealability of each transmission shaft 1201 axial motion), seal reliable advantage.Wherein, between described transmission shaft 1201 and housing 1, dynamic seal apparatus 22 is preferably set, to improve the overall tightness of glasses valve, (this glasses valve can be designed to " totally-enclosed " formula glasses valve, namely outside the sealing by valve plate, valve seat place, also prevent glasses valve internal gas from revealing further by housing 1).In addition, be applied to the uniformity of power in movable valve seat 5 for ease of transmission shaft 1201 each when unclamping valve plate 4, the end of each transmission shaft 1201 is all through movable valve seat 5 and connect can the reverse limit stoper 23 of axial adjustment.Described reverse limit stoper 23 can adopt postive stop baffle or stop nut etc.By regulating each reverse limit stoper 23 at the axial position of corresponding transmission shaft 1201 end, can compensate the asynchronous problem of each transmission shaft 1201 axial motion, innervate valve seat 5 uniform stressed.
In addition, as shown in Figure 1, 2, the inner side that the present invention is also positioned at its sealing ring flat-plate in described movable valve seat 5 and fixed valve base 6 is provided with water cooling plant, and the input end of this water cooling plant is connected with the water inlet interface 15 be arranged on housing 1 and drainage interface with waste pipe 14 respectively by intake pipe 13 with output terminal.Concrete, movable valve seat 5 is provided with described water cooling plant, and this water cooling plant comprises and arranging and the annular water cooling tube 20 that is connected with intake pipe 13 and waste pipe 14 respectively of two ends around the first pipeline 2; Further, fixed valve base 6 is provided with described water cooling plant, this water cooling plant comprises and arranging and the annular water cooling tube 20 that is connected with intake pipe 13 and waste pipe 14 respectively of two ends around second pipe 3.Can know from Fig. 1 and find out, when arranging annular inflatable casing 5a and annular inflatable casing 6a in glasses valve, annular water cooling tube 20 lays respectively in annular inflatable casing 5a and annular inflatable casing 6a just, and an annular water cooling tube 20 is near the lower right corner (taking Fig. 1 as reference) of annular inflatable casing 5a, an annular water cooling tube 20 is near the lower left corner (taking Fig. 1 as reference) of annular inflatable casing 6a, so just make the main seal place of glasses valve obtain cooling more fully, improve the sealability of glasses valve in high temperature condition.Certainly, even if do not have in this glasses valve to arrange the venting gas appliance comprising annular inflatable casing, still can above-mentioned water cooling plant be independently set.
It can also be seen that from Fig. 1,2, glasses valve movable valve seat 5 of the present invention is also provided with drag hook 26, this drag hook 26 cooperatively interacts with the draw-in groove be connected on valve plate 4, when under the drive of movable valve seat 5 at axial actuating mechanism towards when compressing the direction motion of valve plate 4, this draw-in groove does not contact with drag hook 26, therefore can not hinder the motion of movable valve seat 5; When under the drive of movable valve seat 5 at axial actuating mechanism towards when departing from the direction motion of valve plate 4, the first unrestricted motion certain distance of drag hook 26, then contact with draw-in groove again and realize the drawknot of drag hook 26 and draw-in groove, at this moment, movable valve seat 5 will apply pulling force with draw-in groove to valve plate 4 by this drag hook 26, and then valve plate 4 is departed from the sealing ring flat-plate 601 on fixed valve base 6, the seal ring 401 when avoiding then drive valve plate 4 on valve plate 4 and the frictional loss of sealing ring flat-plate 601.
Claims (10)
1. glasses valve, comprising:
Housing (1), the first pipeline (2) for forming this glasses valve stream and second pipe (3) being installed in described housing (1), between the outlet of described first pipeline (2) and the entrance of second pipe (3), forming a gap that valve plate (4) can be supplied to pass through;
Valve plate (4), the surface of described valve plate (4) has for realizing conducting and blind bore face (4a) and real face (4b) respectively between the outlet and the entrance of second pipe (3) of the first pipeline (2), and the both side surface of this valve plate (4) is all provided with respectively along at least one deck seal ring (401) that the outer rim of face, described hole (4a) and real face (4b) is arranged;
Valve plate guide drive mechanism, described valve plate (4) is arranged on housing (1) by this valve plate guide drive mechanism and goes up and switch realize conducting and closed two states between the selectable outlet at the first pipeline (2) and the entrance of second pipe (3) under the control of this valve plate guide drive mechanism under;
Movable valve seat (5), described movable valve seat (5) is nested with upper at the first pipeline (2) and along the axial motion of the first pipeline (2) under effect at axial actuating mechanism through dynamic seal (7), this movable valve seat (5) has the sealing ring flat-plate (501) carrying out crush seal with the seal ring (401) on valve plate (4) surface, side and coordinate; And
Fixed valve base (6), described fixed valve base (6) is fixed on second pipe (3) and goes up and have the sealing ring flat-plate (601) carrying out crush seal with the seal ring (401) on valve plate (4) opposite side surface and coordinate;
It is characterized in that,
Described valve plate guide drive mechanism comprise be arranged on valve plate (4) top and for driving the valve plate suspension arrangement of this valve plate (4) horizontal motion, and, be arranged on valve plate (4) below and when valve plate (4) horizontal motion, axially spacing valve plate guiding device carried out to described valve plate (4) along glasses valve stream;
Described valve plate suspension arrangement comprises the guiding element (16) being fixed on valve plate (4) top, this guiding element (16) has the upper horizontally-guided face (1601) and lower horizontally-guided face (1602) that are parallel to each other for a pair, described upper horizontally-guided face (1601) is equipped with the chain (17) extended along upper horizontally-guided face (1601) length direction, described lower horizontally-guided face (1602) is supported by the support roller (19) be disposed on along valve plate horizontal motion direction on housing (1), this housing (1) is also provided with the sprocket wheel (18) with described chain (17) engagement driving, the rotating shaft of this sprocket wheel (18) connects rotating driving device, and the center of the center of described sprocket wheel (18) and one of them support roller (19) is arranged on the position being centrally located at same vertical line with glasses valve stream,
Above-mentioned valve plate guide drive mechanism is formed waves position structure centered by sprocket wheel (18) with chain (17) contact points, during contact position fouling between support roller (19) and guiding element (16), valve plate (4), by under the effect of sprocket chain strip transmission mechanism, swings around the contact points of sprocket wheel (18) with chain (17) automatically.
2. glasses valve as claimed in claim 1, it is characterized in that: described valve plate guiding device comprises the first limited part (24a) and the second limited part (24b) that are fixed on and are oppositely arranged bottom valve plate (4) and in the axially front and back of glasses valve stream, described housing (1) is fixed with the first spacing guiding element (25a) and the second spacing guiding element (25b) that coordinate with the first limited part (24a) and the second limited part (24b) respectively, described first spacing guiding element (25a) and the first limited part (24a) form proal first position-limiting unit of axis preventing valve plate (4) along glasses valve stream, described second spacing guiding element (25b) and the second limited part (24b) form the second position-limiting unit preventing valve plate (4) from moving backward along the axis of glasses valve stream.
3. glasses valve as claimed in claim 1, is characterized in that: be connected with the bellows displacement compensation device (9) be nested with on the first pipeline (2) between described movable valve seat (5) and housing (1); Movable valve seat (5) is provided with bellows displacement compensation device suction tude (10), this bellows displacement compensation device input end of suction tude (10) is connected with the bellows displacement compensation device intake interface (11) be arranged on housing (1), and output terminal is then communicated with the inner chamber of bellows displacement compensation device (9) by the fitting surface be positioned between movable valve seat (5) with the first pipeline (2).
4. glasses valve as claimed in claim 1, is characterized in that: described axial actuating mechanism comprises and is positioned at housing (1) executing device and being connected to this and execute driving component between device and movable valve seat (5) outward; Described driving component comprises at least three parallel with the first pipeline (2) and uniform along the first pipeline (2) periphery transmission shafts (1201), housing (1) is stretched out and connect and execute device outward in one end of these transmission shafts (1201), and the other end is connected with movable valve seat (5) respectively; On each transmission shaft (1201), all cover has Compress Spring (1202), and the two ends of Compress Spring (1202) contact with housing (1) with movable valve seat (5) respectively.
5. glasses valve as claimed in claim 4, is characterized in that: be provided with dynamic seal apparatus (22) between described transmission shaft (1201) and housing (1).
6. glasses valve as claimed in claim 4, is characterized in that: the end of described each transmission shaft (1201) is all through movable valve seat (5) and connection can the reverse limit stoper (23) of axial adjustment.
7. glasses valve as claimed in claim 1, it is characterized in that: the inner side described movable valve seat (5) and/or fixed valve base (6) being positioned at its sealing ring flat-plate is provided with water cooling plant, and the input end of this water cooling plant is connected with the water inlet interface (15) be arranged on housing (1) and drainage interface with waste pipe (14) respectively by intake pipe (13) with output terminal.
8. glasses valve as claimed in claim 7, it is characterized in that: if movable valve seat (5) is provided with described water cooling plant, then this water cooling plant comprises and arranging and the annular water cooling tube (20) that is connected with intake pipe (13) and waste pipe (14) respectively of two ends around the first pipeline (2); And/or, if (6) are provided with described water cooling plant to fixed valve base, then this water cooling plant comprises and arranging and the annular water cooling tube (20) that is connected with intake pipe (13) and waste pipe (14) respectively of two ends around second pipe (3).
9. glasses valve valve plate guide drive mechanism, it is characterized in that: comprise be arranged on valve plate (4) top and for driving the valve plate suspension arrangement of this valve plate (4) horizontal motion, and, be arranged on valve plate (4) below and when valve plate (4) horizontal motion, along in glasses valve path direction, spacing valve plate guiding device carried out to described valve plate (4);
Described valve plate suspension arrangement comprises the guiding element (16) being fixed on valve plate (4) top, this guiding element (16) has the upper horizontally-guided face (1601) and lower horizontally-guided face (1602) that are parallel to each other for a pair, described upper horizontally-guided face (1601) is equipped with the chain (17) extended along upper horizontally-guided face (1601) length direction, described lower horizontally-guided face (1602) is supported by the support roller (19) be disposed on along valve plate horizontal motion direction on housing (1), this housing (1) is also provided with the sprocket wheel (18) with described chain (17) engagement driving, the rotating shaft of this sprocket wheel (18) connects rotating driving device, and the center of the center of described sprocket wheel (18) and one of them support roller (19) is arranged on the position being centrally located at same vertical line with glasses valve stream,
Above-mentioned valve plate guide drive mechanism is formed waves position structure centered by sprocket wheel (18) with chain (17) contact points, during contact position fouling between support roller (19) and guiding element (16), valve plate (4), by under the effect of sprocket chain strip transmission mechanism, swings around the contact points of sprocket wheel (18) with chain (17) automatically.
10. glasses valve valve plate guide drive mechanism as claimed in claim 9, it is characterized in that: described valve plate guiding device comprises the first limited part (24a) and the second limited part (24b) that are fixed on and are oppositely arranged bottom valve plate (4) and in the axially front and back of glasses valve stream, described housing (1) is fixed with the first spacing guiding element (25a) and the second spacing guiding element (25b) that coordinate with the first limited part (24a) and the second limited part (24b) respectively, described first spacing guiding element (25a) and the first limited part (24a) form proal first position-limiting unit of axis preventing valve plate (4) along glasses valve stream, described second spacing guiding element (25b) and the second limited part (24b) form the second position-limiting unit preventing valve plate (4) from moving backward along the axis of glasses valve stream.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310108357.7A CN103225699B (en) | 2013-03-29 | 2013-03-29 | Glasses valve and valve plate guide drive mechanism thereof |
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| CN201310108357.7A CN103225699B (en) | 2013-03-29 | 2013-03-29 | Glasses valve and valve plate guide drive mechanism thereof |
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| CN103225699A CN103225699A (en) | 2013-07-31 |
| CN103225699B true CN103225699B (en) | 2015-09-09 |
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Families Citing this family (3)
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| CN104864106A (en) * | 2015-05-26 | 2015-08-26 | 柳州钢铁股份有限公司 | Metal hard sealing butterfly valve with moving valve seat |
| CN104896126B (en) * | 2015-06-17 | 2017-05-24 | 山西太钢工程技术有限公司 | Gas cutting-off device and operation method thereof |
| CN107269868A (en) * | 2017-07-19 | 2017-10-20 | 浙江日高阀门有限公司 | A kind of electric high-temperature water-cooled blank-plate valve |
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| US5667196A (en) * | 1994-02-23 | 1997-09-16 | Zimmermann & Jansen Gmbh | Slide valve to close large fluid conduits, in particular double-disk slide valve |
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