CN116066579A

CN116066579A - Anti-lock high-temperature butterfly valve and operation method thereof

Info

Publication number: CN116066579A
Application number: CN202310180062.4A
Authority: CN
Inventors: 李永彬; 张云鹏; 刘四华; 李洛; 李敏敏; 何孙杨
Original assignee: Zhejiang Duorui Industrial Co ltd
Current assignee: Zhejiang Duorui Industrial Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-05-05

Abstract

The invention belongs to the technical field of valves, and particularly relates to an anti-lock high-temperature butterfly valve, which comprises a valve seat, and comprises: the valve rod seat comprises an upper valve rod seat and a lower valve rod seat which are respectively arranged at two sides of the valve body; one end of the valve rod is arranged above the upper valve seat, and the other end of the valve rod penetrates through the upper valve rod seat, the valve seat and the lower valve rod seat respectively; the valve plate is sleeved on the valve rod and positioned in the valve seat; the two anti-lock structures are respectively arranged between the upper valve seat and the valve rod and between the lower valve seat and the valve rod; the anti-lock structure is used for preventing the valve rod from being blocked; the invention has the beneficial effects that; the valve rod is prevented from being blocked, the sealing performance is extremely strong, and the stress of the valve rod is increased.

Description

Anti-lock high-temperature butterfly valve and operation method thereof

Technical Field

The invention relates to the technical field of valves, in particular to an anti-lock high-temperature butterfly valve and an operation method thereof.

Background

The butterfly valve is a corner type valve which is driven by a valve shaft to rotate so as to be opened or closed and can be used for connecting or cutting off a fluid channel. The medium temperature flowing through the valve is divided into a normal temperature butterfly valve and a high temperature butterfly valve.

In the prior art, an anti-lock structure is not arranged between most valve rods and valve rod seats, so that external corrosive liquid flows into the space between the valve rods and the valve rod seats, and the valve rods are blocked and cannot be opened.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide an anti-lock high-temperature butterfly valve and an operation method thereof so as to solve the problems.

In view of this, the present invention provides an anti-lock high temperature butterfly valve, comprising a valve seat, comprising:

the valve rod seat comprises an upper valve rod seat and a lower valve rod seat which are respectively arranged at two sides of the valve body;

one end of the valve rod is arranged above the upper valve seat, and the other end of the valve rod penetrates through the upper valve rod seat, the valve seat and the lower valve rod seat respectively;

the valve plate is sleeved on the valve rod and positioned in the valve seat;

the two anti-lock structures are respectively arranged between the upper valve seat and the valve rod and between the lower valve seat and the valve rod;

the anti-lock structure is used for preventing the valve rod from being blocked.

Through adopting above-mentioned technical scheme, through the setting of anti-lock structure, can fill between valve rod and valve rod seat, reduce the contact surface between valve rod and the valve rod seat, reduce the probability of wearing and tearing, can also reduce outside corrosive liquid inflow valve rod and valve rod seat between, and the valve rod hardening that leads to, unable opening the phenomenon.

In the above technical solution, the further anti-lock structure includes:

the graphite fillers are sleeved on the outer side wall of the valve rod at intervals, and the outer side wall of each graphite filler is abutted against the inner wall of the valve rod seat;

the self-tightening springs are respectively arranged between every two graphite fillers;

the two gland covers are respectively pressed on the upper valve rod seat and the lower valve rod seat;

the graphite packing which is sleeved at intervals is closest to the valve body and is abutted against the inner bottom of the valve rod seat, and the gland is pressed on the graphite packing.

In this technical scheme, contradict in the valve rod seat inner bottom through graphite packing, can prevent to lead to the valve rod hardening because of the leakage of flow in the disk seat, set up from tight spring through between the graphite packing, can make graphite packing wearing and tearing be automatic supply, reinforcing leak protection nature and wearability.

In the above technical solution, further includes:

the lower bracket is sleeved on the outer side wall of one end of the valve rod, which is away from the actuator;

the end cover is arranged at the bottom end of the valve rod;

the bearing is sleeved on the outer side wall of the valve rod, and the outer side wall of the bearing is embedded on the inner wall of the lower bracket;

the cap is sleeved on the outer side wall of the bottom end of the valve rod, and the bottom end of the cap is abutted against the end cover;

wherein, the lower support passes through bolted connection with the end cover.

In this technical scheme, guarantee the location of valve rod through the support of external bearing, can not produce radial displacement because of the promotion of medium force, increase the stability that the valve plate was opened and close, because the valve rod adopts external bearing to support, coefficient of friction is little, reduces the moment of opening and close.

In the above technical solution, further includes:

the two pressure balance rings are respectively attached to two sides of the valve plate, are arranged on the inner wall of the valve seat, and comprise a fixed half ring fixedly connected to the inner wall of the valve seat and a sliding half ring moving away from the valve plate;

one end of the sliding connection structure is connected with the sliding semi-ring, and the other end of the sliding connection structure is connected with the inner wall of the valve seat in a sliding manner;

the two adsorption structures are respectively arranged on one side of the two sliding half rings, which is away from the valve plate, and the adsorption structures are arranged on the inner wall of the valve body;

the valve plate is characterized in that the fixing semi-rings and the sliding semi-rings form a complete ring, the fixing semi-rings and the sliding semi-rings of the two pressure balance rings are opposite in position setting, when the valve plate rotates, the two sliding semi-rings move towards the adsorption structure through the sliding connection structure, so that the adsorption structure adsorbs the sliding semi-rings, when the valve plate rotates back to the original position, the adsorption structure releases the sliding semi-rings, the sliding connection structure enables the sliding semi-rings to move back to the original position, and the sliding semi-rings are made of magnetic attractable materials.

In this technical scheme, through the setting of fixer semi-ring and slip semi-ring, can make the valve plate conflict on the ring that fixer semi-ring and slip semi-ring are constituteed, thereby form the first time seal of valve plate, greatly increased leakproofness, when the fluid impacted the valve plate, borrow the power to the valve rod through fixer semi-ring and slip semi-ring can significantly reduce the valve plate, thereby better protection valve rod can not be warp, can make through sliding connection structure's setting, can make the slip semi-ring can remove when the valve plate rotates, thereby make the valve plate open, through adsorption structure's setting, can make the slip semi-ring adsorb, thereby be prevented by the blocking of slip semi-ring when the valve plate closes.

In the above technical solution, the sliding connector further includes:

one end of the sliding block is connected to one side of the sliding half ring facing the valve seat, and the other end of the sliding block slides in the valve seat;

the valve seat is characterized in that a sliding groove for sliding of the sliding block is formed in the inner wall of the valve seat, the sliding groove extends towards one side of the adsorption structure, a fixed block is arranged in the sliding groove and located on one side wall of the sliding groove, which is away from the sliding block, an elastic piece is arranged between the fixed block and the sliding block, and the elastic piece is located in the sliding groove.

In this technical scheme, through the setting of sliding block, can make the slip semi-ring slide along the direction of spout, through the setting of fixed block, can make the elastic component pass through elastic force resilience slip semi-ring.

In the above technical solution, the adsorption structure further includes:

the two semi-ring fixing blocks are respectively arranged on one side of the sliding semi-ring, which is away from the valve plate;

the driving ends are arranged on the outer side wall of the valve seat, and the output ends penetrate through the valve seat and are arranged in the semi-ring fixing blocks;

the battery iron pieces are arranged in the semi-ring fixing blocks at intervals, and the attraction ends of the battery iron pieces are communicated with one side of the semi-ring fixing blocks, which faces the sliding semi-rings.

In this technical scheme, through the setting of semi-ring fixed block, can make a plurality of solenoid spare place, through the setting of solenoid spare, can make the slip semi-ring obtain adsorbing to prevent that the slip semi-ring from moving and can be normal position when the valve plate does not turn back.

In the above technical scheme, further be equipped with the standing groove on the lateral wall of valve plate, be equipped with the seal groove that corresponds with the standing groove on the inner wall of valve body, be equipped with high temperature resistant anticorrosive air cushion in the standing groove, be equipped with on the valve body lateral wall and fill the aspirator pump, it contradicts in the connecting pipe of valve rod lateral wall to be equipped with on the output of aspirator pump to run through the valve rod seat, be equipped with the first passageway of setting that corresponds with the connecting pipe on the lateral wall of valve rod, the one end that first passageway deviates from the connecting pipe extends towards in the valve rod, the one end that first passageway deviates from the connecting pipe is equipped with the second passageway that runs through the valve plate and communicates in high temperature resistant anticorrosive air cushion.

According to the technical scheme, through the arrangement of the connecting pipe, the first channel and the second channel, the gas of the gas filling and sucking pump is in an inflating state and an adsorbing state for the high-temperature-resistant anti-corrosion air cushion, so that the sealing groove is filled, sealed and closed.

In the above technical scheme, further both sides all are equipped with small-size self-priming spray pump on the lateral wall of valve body, the lateral wall and the spout intercommunication of seal groove, two all be equipped with the outlet pipe on the output of small-size self-priming spray pump, two the outlet pipe all runs through the disk seat and communicates on the lateral wall of seal groove orientation in the spout, all be equipped with the water suction pipe that communicates in the seal groove on the input of small-size self-priming spray pump.

In this technical scheme, through the setting of outlet pipe, can make small-size self-priming spray pump clear up the spout, prevent filth and impurity to the block of sliding block, when the slip semi-ring contradicted in the valve plate, continue small-size self-priming spray pump water spray, wash in the seal groove, and through the setting of water suction pipe, can make the filth in the seal groove clear away, prevent high temperature resistant corrosion-resistant air cushion wearing and tearing and sealed inadequately.

In the above technical solution, the method further includes the following steps:

s1: firstly, opening a filling and sucking pump to suck air, sucking the air in the high-temperature-resistant anti-corrosion air cushion, and immersing the high-temperature-resistant anti-corrosion air cushion in the placing groove;

s2: starting the valve rod electric actuator to enable the valve rod to rotate, enabling the valve rod to drive the sliding half rings on two sides to move, and simultaneously starting the adsorption structure to adsorb the sliding half rings, wherein the valve is in an open state;

s3: when the valve is closed, the small self-priming water spray pump is controlled to spray water to clean the sliding groove, then the adsorption structure is controlled to be closed, and the sliding block is rebounded by the elastic piece, so that the sliding semi-ring is abutted against the valve plate;

s4: continuously spraying water to the small self-priming water spray pump, and simultaneously starting the water absorption effect of the small self-priming water spray pump, so that the sealing groove is cleaned by the cleaning effect;

s5: and opening a filling suction pump to discharge air, filling the high-temperature-resistant anti-corrosion air cushion with air, starting to fill the sealing groove, and closing the valve.

In this technical scheme, through the setting of S1, can make the valve plate open and can not shine into sealed wearing and tearing, through the setting of S2, can make the valve open automatically, and obtain simultaneously that the first sealed of slip semi-ring is shared with pressure, can also open, through the setting of S3, can prevent that the sliding block from being blocked, and can make the valve plate obtain that the leakproofness increases and pressure shares, through the setting of S4, can make to prevent high temperature resistant anticorrosive air cushion inflated wearing and tearing, can also prevent that high temperature resistant anticorrosive air cushion inflated sealed effect from reducing.

The beneficial effects of the invention are as follows:

1. through the setting of anti-lock structure, can prevent that the valve rod from being blocked.

2. Through the cooperation of pressure balance ring, sliding connection structure and adsorption structure, can make valve rod atress increase, the leakproofness of valve increase.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the overall structure of an embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of an embodiment of the present invention;

fig. 4 is an enlarged view of fig. 2 a in accordance with an embodiment of the present invention.

Reference numerals: 1. a valve body; 2. an upper valve rod seat; 3. a lower valve rod seat; 4. a valve stem; 5. a valve plate; 6. and is provided with the following steps of; 7. a graphite filler; 8. a self-tightening spring; 9. a gland; 10. a lower bracket; 11. an end cap; 12. a bearing; 13. and a cap; 14. a stationary half ring; 15. a slide half ring; 16. a chute; 17. an elastic member; 18. a semi-ring fixing block; 19. an electromagnet member; 20. a placement groove; 21. sealing grooves; 22. high temperature resistant anticorrosion air cushion; 23. filling a suction pump; 24. a connecting pipe; 25. a first channel; 26. a second channel; 27. small self-priming spray pump; 28. a water outlet pipe; 29. a water suction pipe.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some of the embodiments of the present application, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. In addition, in the specification and claims, "and/or" means at least one of the connected objects, and the character "/", generally means a relationship in which the front and rear related objects are an anti-lock high temperature butterfly valve and an operation method thereof.

It should be noted that, in the description of the present application, the terms "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal", and "top, bottom", etc. generally refer to an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, and merely for convenience of description of the present application and simplification of the description, the azimuth terms do not indicate and imply that the apparatus or element referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

It should be noted that, in this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Example 1:

the embodiment provides an anti-lock high temperature butterfly valve, including the disk seat, include:

the valve rod 4 seat comprises an upper valve rod seat 2 and a lower valve rod seat 3 which are respectively arranged at two sides of the valve body 1;

one end of the valve rod 4 is arranged above the upper valve seat, and the other end of the valve rod penetrates through the upper valve rod seat 2, the valve seat and the lower valve rod seat 3 respectively;

the valve plate 5 is sleeved on the valve rod 4 and is positioned in the valve seat;

the two anti-lock structures are respectively arranged between the upper valve seat and the valve rod 4 and between the lower valve seat and the valve rod 4;

wherein, the top end of the valve rod 4 is provided with an electric actuator 6 for driving the valve rod, and the anti-lock structure is used for preventing the valve rod 4 from being blocked;

through the setting of anti-lock structure, can fill between valve rod 4 and valve rod 4 seat, reduce the contact surface between valve rod 4 and the valve rod 4 seat, reduce the probability of friction loss, can also reduce outside corrosive liquid inflow valve rod 4 and valve rod 4 seat between, and the valve rod 4 hardening that leads to, unable opening the phenomenon.

Example 2:

in this embodiment, in addition to including the structural features of the foregoing embodiment, the further anti-lock structure includes:

the graphite fillers 7 are sleeved on the outer side wall of the valve rod 4 at intervals, and the outer side wall of each graphite filler 7 is abutted against the inner wall of the valve rod 4 seat;

the self-tightening springs 8 are respectively arranged between every two graphite fillers 7;

and two gland 9 are respectively pressed on the upper valve rod seat 2 and the lower valve rod seat 3;

wherein one of the graphite packing 7 which is sleeved at intervals closest to the valve body 1 is abutted against the inner bottom of the valve rod 4 seat, and the gland 9 is pressed on the graphite packing 7;

the graphite packing 7 is abutted against the inner bottom of the valve rod 4 seat, so that the valve rod 4 is prevented from being hardened due to leakage flowing out of the valve seat, and the graphite packing 7 is automatically supplied by arranging the self-tightening spring 8 between the graphite packing 7, so that the leakage resistance and the wear resistance are enhanced.

Example 3:

in this embodiment, in addition to including the structural features of the foregoing embodiment, further includes:

the lower bracket 10 is sleeved on the outer side wall of one end of the valve rod 4, which is far away from the actuator;

an end cover 11 arranged at the bottom end of the valve rod 4;

the bearing 12 is sleeved on the outer side wall of the valve rod 4, and the outer side wall of the bearing 12 is embedded on the inner wall of the lower bracket 10;

the cap 13 is sleeved on the outer side wall of the bottom end of the valve rod 4, and the bottom end of the cap 13 is abutted against the end cover 11;

wherein the lower bracket 10 is connected with the end cover 11 through bolts

The support of the external bearing 12 ensures the positioning of the valve rod 4, radial displacement can not be generated due to the pushing of medium force, the opening and closing stability of the valve plate 5 is improved, and the valve rod 4 is supported by the external bearing 12, so that the friction coefficient is small, and the opening and closing moment is reduced.

Example 4:

the two pressure balance rings are respectively attached to two sides of the valve plate 5, are arranged on the inner wall of the valve seat, and comprise a fixed semi-ring 14 fixedly connected to the inner wall of the valve seat and a sliding semi-ring 15 moving away from the valve plate 5;

one end of the sliding connection structure is connected with the sliding semi-ring 15, and the other end of the sliding connection structure is connected with the inner wall of the valve seat in a sliding manner;

the two adsorption structures are respectively arranged on one side of the two sliding half rings 15, which is away from the valve plate 5, and the adsorption structures are arranged on the inner wall of the valve body 1;

the fixing half ring 14 and the sliding half ring 15 form a complete ring, the positions of the fixing half ring 14 and the sliding half ring 15 of the two pressure balancing rings are opposite, when the valve plate 5 rotates, the two sliding half rings 15 move towards the adsorption structure through the sliding connection structure, so that the adsorption structure adsorbs the sliding half ring 15, when the valve plate 5 rotates back to the original position, the adsorption structure releases the sliding half ring 15, the sliding connection structure enables the sliding half ring 15 to move back to the original position, and the sliding half ring 15 is made of a magnetically attractable material;

through setting up of stationary half ring 14 and slip half ring 15, can make valve plate 5 contradict on the ring that stationary half ring 14 and slip half ring 15 are constituteed, thereby form the first time seal of valve plate 5, greatly increased leakproofness, when the fluid strikes valve plate 5, can significantly reduce valve plate 5 to valve rod 4's the power of borrowing through stationary half ring 14 and slip half ring 15, thereby better protection valve rod 4 can not be warp, can make through sliding connection structure's setting, can make slip half ring 15 can remove when valve plate 5 rotates, thereby make valve plate 5 open, through adsorption structure's setting, can make slip half ring 15 adsorb, thereby prevent the valve plate 5 to close the blocking of by slip half ring 15.

Example 5:

in this embodiment, in addition to including the structural features of the previous embodiment, the sliding connector further includes:

one end of the sliding block is connected to one side of the sliding half ring 15 facing the valve seat, and the other end of the sliding block slides in the valve seat;

the valve seat is characterized in that a sliding groove 16 for sliding of the sliding block is formed in the inner wall of the valve seat, the sliding groove 16 extends towards one side of the adsorption structure, a fixed block is arranged in the sliding groove and is positioned on the side wall of the sliding groove 16, which is away from the sliding block, an elastic piece 17 is arranged between the fixed block and the sliding block, and the elastic piece 17 is positioned in the sliding groove 16;

through the setting of sliding block, can make the slip semi-ring 15 slide along the direction of spout 16, through the setting of fixed block, can make elastic component 17 through elastic force resilience slip semi-ring 15.

Example 6:

in this embodiment, in addition to including the structural features of the foregoing embodiment, the further adsorption structure includes:

two half ring fixing blocks 18 respectively arranged on one side of the sliding half ring 15, which is away from the valve plate 5;

the driving ends of the electromagnetic iron pieces 19 are arranged on the outer side wall of the valve seat, and the output ends penetrate through the valve seat and are arranged in the semi-ring fixing blocks 18;

the electromagnetic iron pieces 19 are arranged in the semi-ring fixing blocks 18 at intervals, and the attraction ends of the battery iron pieces are communicated with one side of the semi-ring fixing blocks 18, which faces the sliding semi-ring 15;

through the setting of semi-ring fixed block 18, can make a plurality of solenoid pieces 19 obtain placing, through the setting of solenoid piece 19, can make the slip semi-ring 15 obtain adsorbing, thereby prevent that slip semi-ring 15 from moving and can be normal position when valve plate 5 does not turn back, the output of above-mentioned solenoid piece 19 and the lateral wall parallel and level of semi-ring fixed block 18, thereby make semi-ring fixed block 18 and slip semi-ring 15 laminating reduce the impact from the fluid after adsorbing slip semi-ring 15, the protruding part in the drawing is only for being convenient for present the position of solenoid piece 19.

Example 7:

in this embodiment, in addition to the structural features including the foregoing embodiment, a placing groove 20 is further provided on the outer sidewall of the valve plate 5, a sealing groove 21 corresponding to the placing groove 20 is provided on the inner wall of the valve body 1, a high temperature resistant and corrosion resistant air cushion 22 is provided in the placing groove 20, a suction filling pump 23 is provided on the outer sidewall of the valve body 1, a connecting pipe 24 penetrating through the upper valve rod seat 2 and abutting against the outer sidewall of the valve rod 4 is provided on the output of the suction filling pump 23, a first channel 25 corresponding to the connecting pipe 24 is provided on the outer sidewall of the valve rod 4, one end of the first channel 25 deviating from the connecting pipe 24 extends towards the valve rod 4, and one end of the first channel 25 deviating from the connecting pipe 24 is provided with a second channel 26 penetrating through the valve plate 5 and communicating with the high temperature resistant and corrosion resistant air cushion 22

Through the arrangement of the connecting pipe 24, the first channel 25 and the second channel 26, the gas of the gas filling and sucking pump 23 can be in an inflating state and an adsorbing state for the high-temperature-resistant anti-corrosion air cushion 22, so that the sealing groove 21 is filled, sealed and closed.

Example 8:

in this embodiment, besides the structural features of the foregoing embodiment, further two sides of the outer side wall of the valve body 1 are provided with small self-priming water spray pumps 27, the side wall of the sealing groove 21 is communicated with the sliding groove 16, the output ends of the two small self-priming water spray pumps 27 are provided with water outlet pipes 28, the two water outlet pipes 28 penetrate through valve seats and are communicated with the sealing groove 21 towards the side wall of the sliding groove 16, and the input ends of the small self-priming water spray pumps 27 are provided with water suction pipes 29 communicated with the sealing groove 21;

through the setting of outlet pipe 28, can make small-size self-priming spray pump 27 clear up spout 16, prevent filth and impurity to the block of sliding, when the slide semi-ring 15 contradicted in valve plate 5, continue small-size self-priming spray pump 27 water spray, wash sealed groove 21, and through the setting of water suction pipe 29, can make the filth in the sealed groove 21 clear up, prevent high temperature resistant corrosion-resistant air cushion wearing and tearing and seal inadequately.

Example 9:

in this embodiment, in addition to the structural features of the previous embodiment, 6 further comprises the following steps:

s1: firstly, a suction pump 23 is started to suck air, and the air in the high-temperature-resistant anti-corrosion air cushion 22 is sucked out, so that the high-temperature-resistant anti-corrosion air cushion 22 is immersed into the placing groove 20;

s2: opening the valve rod electric actuator 6 to enable the valve rod 4 to rotate, enabling the valve rod 4 to drive the sliding half rings 15 on two sides to move, and simultaneously starting the adsorption structure to adsorb the sliding half rings 15, wherein the valve is in an open state;

s3: when the valve is closed, the small self-priming water spray pump 27 is controlled to spray water to clean the sliding groove 16, then the adsorption structure is controlled to be closed, and the sliding block is rebounded by the elastic piece 17, so that the sliding half ring 15 is abutted against the valve plate 5;

s4: the water spraying of the small self-priming water spray pump 27 is continuous, and the water absorbing effect of the small self-priming water spray pump 27 is started at the same time, so that the sealing groove 21 is cleaned by the cleaning effect;

s5: starting a filling suction pump 23 to discharge air, filling the high-temperature-resistant anti-corrosion air cushion 22 with air, starting to fill the sealing groove 21, and completing the closing of the valve;

through the setting of S1, can make valve plate 5 open and can not shine into sealed wearing and tearing, through the setting of S2, can make the valve open automatically, and obtain simultaneously that the first sealed and the pressure of slip semi-ring 15 are shared, can also open, through the setting of S3, can prevent that the sliding block from being blocked, and can make valve plate 5 obtain that the leakproofness increases and pressure shares, through the setting of S4, can make and prevent high temperature resistant anticorrosive air cushion 22 inflatable wearing and tearing, can also prevent that high temperature resistant anticorrosive air cushion 22 inflatable sealed effect from reducing.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims

1. An anti-lock high temperature butterfly valve, comprising a valve seat, comprising:

the valve rod (4) seat comprises an upper valve rod seat (2) and a lower valve rod seat (3) which are respectively arranged at two sides of the valve body (1);

one end of the valve rod (4) is arranged above the upper valve seat, and the other end of the valve rod penetrates through the upper valve rod seat (2), the valve seat and the lower valve rod seat (3) respectively;

the valve plate (5) is sleeved on the valve rod (4) and is positioned in the valve seat;

the two anti-lock structures are respectively arranged between the upper valve seat and the valve rod (4) and between the lower valve seat and the valve rod (4);

the anti-lock structure is used for preventing the valve rod (4) from being blocked.

2. An anti-lock high temperature butterfly valve according to claim 1, wherein said anti-lock structure comprises:

the graphite fillers (7) are sleeved on the outer side wall of the valve rod (4) at intervals, and the outer side wall of each graphite filler (7) is abutted against the inner wall of the valve rod (4) seat;

a plurality of self-tightening springs (8) are respectively arranged between every two graphite fillers (7);

the two pressing covers (9) are respectively pressed on the upper valve rod seat (2) and the lower valve rod seat (3);

wherein, one of the graphite packing (7) which is sleeved at intervals and is closest to the valve body (1) is abutted against the inner bottom of the valve rod (4), and the gland (9) is pressed on the graphite packing (7).

3. An anti-lock high temperature butterfly valve according to claim 1, further comprising:

the lower bracket (10) is sleeved on the outer side wall of one end, deviating from the actuator, of the valve rod (4);

the end cover (11) is arranged at the bottom end of the valve rod (4);

the bearing (12) is sleeved on the outer side wall of the valve rod (4), and the outer side wall of the bearing (12) is embedded on the inner wall of the lower bracket (10);

the parallel cap (13) is sleeved on the outer side wall of the bottom end of the valve rod (4), and the bottom end of the parallel cap (13) is abutted against the end cover (11);

wherein the lower bracket (10) is connected with the end cover (11) through bolts.

4. An anti-lock high temperature butterfly valve according to claim 1, further comprising:

the two pressure balance rings are respectively attached to two sides of the valve plate (5), are arranged on the inner wall of the valve seat, and comprise a fixed semi-ring (14) fixedly connected to the inner wall of the valve seat and a sliding semi-ring (15) moving away from the valve plate (5);

one end of the sliding connection structure is connected with the sliding semi-ring (15), and the other end of the sliding connection structure is connected with the inner wall of the valve seat in a sliding manner;

the two adsorption structures are respectively arranged on one side of the two sliding half rings (15) away from the valve plate (5), and the adsorption structures are arranged on the inner wall of the valve body (1);

the device comprises a valve plate (5), a fixed semi-ring (14) and a sliding semi-ring (15), wherein the fixed semi-ring (14) and the sliding semi-ring (15) form a complete circular ring, the positions of the fixed semi-ring (14) and the sliding semi-ring (15) of the two pressure balance rings are opposite, when the valve plate (5) rotates, the two sliding semi-rings (15) move towards an adsorption structure through a sliding connection structure, so that the adsorption structure adsorbs the sliding semi-ring (15), when the valve plate (5) rotates back to the original position, the adsorption structure releases the sliding semi-ring (15), the sliding connection structure enables the sliding semi-ring (15) to move back to the original position, and the sliding semi-ring (15) is made of a magnetically attractable material.

5. An anti-lock high temperature butterfly valve according to claim 4, wherein the sliding connection comprises:

one end of the sliding block is connected to one side of the sliding half ring (15) facing the valve seat, and the other end of the sliding block slides in the valve seat;

the valve seat is characterized in that a sliding groove (16) for sliding of the sliding block is formed in the inner wall of the valve seat, the sliding groove (16) extends towards one side of the adsorption structure, a fixed block is arranged in the sliding groove and located on one side wall of the sliding groove (16) deviating from the sliding block, an elastic piece (17) is arranged between the fixed block and the sliding block, and the elastic piece (17) is located in the sliding groove (16).

6. An anti-lock high temperature butterfly valve according to claim 4, wherein the adsorption structure comprises:

two semi-ring fixing blocks (18) which are respectively arranged on one side of the sliding semi-ring (15) which is away from the valve plate (5);

the driving ends of the electromagnetic iron pieces (19) are arranged on the outer side wall of the valve seat, and the output ends of the electromagnetic iron pieces penetrate through the valve seat and are arranged in the semi-ring fixing blocks (18);

the battery iron pieces are arranged in the semi-ring fixing blocks (18) at intervals, and the attraction ends of the battery iron pieces are communicated with the semi-ring fixing blocks (18) towards one side of the sliding semi-ring (15).

7. An anti-lock high temperature butterfly valve according to claim 1, wherein a holding groove (20) is arranged on the outer side wall of the valve plate (5), a sealing groove (21) corresponding to the holding groove (20) is arranged on the inner wall of the valve body (1), a high temperature resistant and corrosion resistant air cushion (22) is arranged in the holding groove (20), a suction filling pump (23) is arranged on the outer side wall of the valve body (1), a connecting pipe (24) penetrating through the upper valve rod seat (2) and propping against the outer side wall of the valve rod (4) is arranged on the output of the suction filling pump (23), a first channel (25) corresponding to the connecting pipe (24) is arranged on the outer side wall of the valve rod (4), one end of the first channel (25) deviating from the connecting pipe (24) extends towards the valve rod (4), and one end of the first channel (25) deviating from the connecting pipe (24) is provided with a second channel (26) penetrating through the valve plate (5) and being communicated with the high temperature resistant and corrosion resistant air cushion (22).

8. An anti-lock high temperature butterfly valve according to claim 1, wherein the two sides of the outer side wall of the valve body (1) are provided with small self-priming water spraying pumps (27), the side wall of the sealing groove (21) is communicated with the sliding groove (16), the output ends of the two small self-priming water spraying pumps (27) are provided with water outlet pipes (28), the two water outlet pipes (28) are communicated with the side wall of the sealing groove (21) facing the sliding groove (16) through valve seats, and the input ends of the small self-priming water spraying pumps (27) are provided with water sucking pipes (29) communicated with the sealing groove (21).

9. An anti-lock high temperature butterfly valve according to claim 1 and a method of operating the same, comprising the steps of:

s1: firstly, a filling and sucking pump (23) is started to suck air, and the air in the high-temperature-resistant and anti-corrosion air cushion (22) is sucked out, so that the high-temperature-resistant and anti-corrosion air cushion (22) is immersed into the placing groove (20);

s2: the valve rod (4) is rotated by opening the valve rod (6), the valve rod (4) drives the sliding half rings (15) on two sides to move, and meanwhile, the adsorption structure is started to adsorb the sliding half rings (15), so that the valve is in an open state;

s3: when the valve is closed, the small self-priming water spraying pump (27) is controlled to spray water to clean the sliding groove (16), then the adsorption structure is controlled to be closed, and the sliding block is rebounded by the elastic piece (17) to enable the sliding half ring (15) to be abutted against the valve plate (5);

s4: the water spraying of the small self-priming water spraying pump (27) is continuous, and the water absorbing effect of the small self-priming water spraying pump (27) is started at the same time, so that the cleaning effect is achieved;

s5: and (3) opening a filling and sucking pump (23) to discharge air, inflating the high-temperature-resistant anti-corrosion air cushion (22), starting to fill the sealing groove (21), and closing the valve.