CN114811069A

CN114811069A - Fluoroplastic full-lining butterfly valve

Info

Publication number: CN114811069A
Application number: CN202210385432.3A
Authority: CN
Inventors: 毛春龙; 毛金根; 陈善俊
Original assignee: Jiangsu Jin Shengyuan Special Valve Ltd By Share Co ltd
Current assignee: Jiangsu Jin Shengyuan Special Valve Ltd By Share Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-07-29
Anticipated expiration: 2042-04-13
Also published as: CN114811069B

Abstract

The invention discloses a fluoroplastic full-lining butterfly valve which comprises a butterfly valve body and a butterfly plate, wherein the surface of the butterfly valve body is provided with an outer cover which is arranged in a surrounding manner, and the outer cover consists of an upper heat-insulating cover, a lower heat-insulating cover, an embedded groove and an electromagnetic layer; the bottom parts of the two ends of the upper heat-insulating cover are respectively provided with an inserting magnetic strip, the top parts of the two ends of the lower heat-insulating cover are respectively provided with an embedding groove, the bottom parts of the embedding grooves are respectively provided with an electromagnetic layer, and the cross section of the electromagnetic layer is in a concave shape; the butterfly valve comprises a butterfly valve body and is characterized in that a tool box is installed at the top of the butterfly valve body, a disc is installed at the top of the tool box through a shaft piece, and a rotating handle is fixedly connected to the top of the disc. According to the butterfly valve, the outer cover is arranged, and when the butterfly valve is used for carrying out high-temperature liquid transmission control, the electromagnetic layer is selectively started, so that the upper heat-insulating cover is separated from or embedded in the embedding groove, and therefore comprehensive heat-insulating treatment or heat-dissipating and cooling effects are formed on the surface of the butterfly valve body.

Description

Fluoroplastic full-lining butterfly valve

Technical Field

The invention relates to the technical field of butterfly valves, in particular to a fluoroplastic full-lining butterfly valve.

Background

The butterfly valve drives the dish version simultaneously according to the rotary valve rod and rotates the valve of opening and close, and in the butterfly valve body, flow control is done around the axis rotation to the butterfly plate, along with the diversification of conveying medium, the production demand of butterfly valve also enriches thereupon, and wherein fluoroplastics have high heat resistance, outstanding oil resistance, resistant solvent and wearability, can be used for supplementary butterfly valve to realize the transport of high temperature liquid, therefore the butterfly valve combines fluoroplastics to form neotype butterfly valve.

The existing butterfly valve has the defects that:

1. patent document CN204477326U discloses a fluoroplastic lining butterfly valve, "the valve body passes through the bolt fastening on the disk seat, and the valve body is equipped with on the position of the external contact fluid of steel skeleton and gathers the perfluoroethylene propylene coating, the butterfly plate is installed on the disk seat, and the butterfly plate has gathered perfluoroethylene propylene full coating at the position of the external contact fluid of steel skeleton lining, the valve rod is connected with the disk seat. The utility model discloses increased the structure that the butterfly valve disk seat can be high vacuum resistant on the basis of former fluorine plastic lining butterfly valve, be equipped with promptly in the plastic layer of butterfly valve disk seat and strengthen the steel ring, make fluoroplastics wrap the wire net completely behind the shaping of plastic valve seat and melt as an organic whole, make the butterfly valve can work under full vacuum degree. The improved butterfly plate does not need to be processed, the sealing surface of the butterfly plate is in a transition arc shape, and the sealing performance is improved by about 35% compared with the original sealing performance. The butterfly plate is strong in interchangeability, the butterfly plate can be purchased as a quick-wear part, the purchasing cost of a user is reduced by about 30% -50%, the service life of the whole butterfly valve can be prolonged by more than 2 times, the butterfly plate is convenient to disassemble and assemble by enhancing the interchangeability of the butterfly plate when the butterfly plate is used so as to reduce the purchasing cost, flexible heat-preservation and heat-insulation equipment is lacked when the butterfly valve is used, and when liquid needing heat dissipation and heat preservation is conveyed into the butterfly valve, a heat-preservation structure needs to be manually disassembled and assembled, so that the use effect of the butterfly valve is poor;

2. patent document CN203286019U discloses an intelligent monitoring strong corrosion resistant fluoroplastic full-lining butterfly valve, "including upper valve body, lower valve body, butterfly plate, upper valve stem, lower valve stem, electric actuator assembly and hand wheel, is equipped with packing between upper valve stem and upper valve body, sets up the gland above packing, packing includes upper packing and lower packing, sets up the liquid collecting ring between upper packing and lower packing, and the liquid collecting ring is connected with the leakage detection device. The utility model provides high factor of safety and malfunction alerting and the clearance ability of strong corrosion fluoroplastics full lining butterfly valve, solve the sealed difficult problem of leaking of valve rod valve body, realize the weeping and handle, safety, energy-conservation, environmental protection, promote the technical upgrade of chlor-alkali chemical industry enterprise simultaneously, realize the computer centralized control of surveillance center, this butterfly valve strengthens the detection to the valve body leakproofness through the design of album liquid ring and leakage detection device when using, but this butterfly valve lacks corresponding limit structure when using, make the valve rod difficult to keep the invariant of angle after rotating certain angle, influence the normal use of valve body;

3. patent document CN214617889U discloses a fluorine-lined plastic butterfly valve with good sealing performance, which comprises an upper valve body and a lower valve body, wherein the upper valve body and the lower valve body are fixedly connected from top to bottom to form a valve body with a cavity, a butterfly plate is arranged in the cavity of the valve body, an upper valve rod and a lower valve rod are respectively arranged at the upper end and the lower end of the butterfly plate, and a valve seat is arranged in the cavity; the upper valve rod sequentially penetrates through the upper valve body and the valve seat to be connected with the butterfly plate, and the lower valve rod penetrates through the valve seat to be positioned in the lower valve body; the two groups of butterfly-shaped elastic cushions are respectively arranged between the valve seat and the upper valve body and between the valve seat and the lower valve body; a gland is arranged between the butterfly spring washer and the upper valve body and between the butterfly spring washer and the lower valve body; the sealing assembly is arranged between the gland and the valve seat; the sealing component comprises an O-shaped sealing ring, a V-shaped sealing element is arranged below the O-shaped sealing ring, the utility model discloses a belleville spring provides continuous pretightening force for the sealing component, the bottom of the lower valve rod adopts full-wrapping fluoroplastic, and more than three V-shaped sealing elements, perfluoroether O-shaped rings and high-strength PEEK gland are supplemented to achieve excellent sealing effect, the sealing performance of the butterfly valve is enhanced by full-wrapping fluoroplastic, the V-shaped sealing elements, the perfluoroether O-shaped rings and the high-strength PEEK gland when the butterfly valve is used, but the interference of solid particles in internal fluid on the scouring erosion of the butterfly plate is ignored when the butterfly plate is used, and the sealing performance of the valve body is difficult to guarantee when the butterfly plate is damaged due to the scouring erosion;

4. patent document CN110873192B discloses a fluoroplastic butterfly valve structure, "including a valve body, a butterfly plate, a liner, and a back ring; the butterfly plate is of a disc structure and comprises a metal butterfly plate positioned inside and a fluoroplastic package wrapping the metal butterfly plate outside, the butterfly plate is provided with a valve shaft, the part connected with the valve shaft is provided with two bulges, and the section of the butterfly plate is of a plate-shaped or conical surface structure; the valve shaft is mounted in the shaft hole of the valve body, so that the butterfly plate can rotate to regulate flow or open and close the valve; the inner peripheral surface of the valve body is provided with a back ring and a fluoroplastic lining, the outer edge of the butterfly plate and the inner surface of the lining have a tightening function of interference compression joint sealing, the tightening amount is provided with deformation and required pressing pressure by a high-temperature resistant rubber back ring between the inner peripheral surface of the valve body and the lining, and can bear the operation requirement of high-temperature and high-pressure fluid at 200 ℃, the butterfly valve strengthens the operation requirement of the valve body for high-pressure and high-temperature fluid through tightening treatment when in use, but does not have corresponding buffering effect when the valve body is in need of impact on the high-pressure fluid, so that the butterfly plate is easy to generate breakdown events to further influence the safe use of the butterfly valve.

Disclosure of Invention

The invention aims to provide a fluoroplastic full-lining butterfly valve to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a fluoroplastic full-lining butterfly valve comprises a butterfly valve body and a butterfly plate, wherein a cover which is arranged in a surrounding mode is arranged on the surface of the butterfly valve body, and the cover consists of an upper heat-insulating cover, a lower heat-insulating cover, an embedding groove and an electromagnetic layer;

the upper heat insulation cover and the lower heat insulation cover are both in a semicircular design, the bottoms of two ends of the upper heat insulation cover are respectively provided with an inserting magnetic stripe, the tops of two ends of the lower heat insulation cover are respectively provided with an embedding groove, the bottoms of the embedding grooves are respectively provided with an electromagnetic layer, and the cross section of the electromagnetic layer is in a concave shape;

the butterfly valve comprises a butterfly valve body, a tool box, a disc, a shaft piece and a rotating handle, wherein the tool box is installed at the top of the butterfly valve body and is located in front of an outer cover, the disc is installed at the top of the tool box through the shaft piece, and the rotating handle is fixedly connected to the top of the disc.

Preferably, the internally mounted of tool holder has the valve rod, and the top of valve rod runs through the top of tool holder and is connected with the bottom of disc, and the bottom of valve rod runs through the inside that extends to the butterfly valve body, the surface of valve rod has arranged the slot around the equidistance, and the length of slot is less than the length of valve rod, miniature electronic pole is all installed to four inner walls of tool holder, miniature electronic pole's trailing end connection has the cutting, and the length of cutting is less than the length of slot, the surface mounting of valve rod has the displacement inductor, and the displacement inductor is located the below of slot, displacement inductor and miniature electronic pole electric connection.

Preferably, the circular slot has been cup jointed on the tail end surface of valve rod, the surface of circular slot is connected with the butterfly plate, and circular slot and valve rod pass through bolted connection, the back mounted of butterfly plate has the abrasionproof to decrease the subassembly, the bottom of circular slot is connected with sealed reel, and the bottom of sealed reel and the internal surface connection of butterfly valve body.

Preferably, the abrasionproof decreases the subassembly including the inlet tube, accomodate net box, small opening, block and one-way apopore, the surface of inlet tube is equipped with the one-way apopore that runs through, and the internally mounted of one-way apopore has the check valve, the internally mounted of inlet tube has the block, and the block is located the rear of one-way apopore, the inner wall of inlet tube is equipped with the small opening, and the small opening is located the rear of block, inlet tube surface mounting accomodates the net box, and accomodates the net box and be located the small opening under.

Preferably, the bottom of accomodating the net box is run through and is installed row material pipe, arrange the surface mounting of material pipe and have miniature electronic valve, and miniature electronic valve and displacement sensor electric connection.

Preferably, the inner wall of the butterfly plate is provided with slide rails which are arranged in an up-down symmetrical manner, the slide rails are connected with a supporting plate in a sliding manner, the front surface and the back surface of the supporting plate are provided with buffer springs, and one end, far away from the supporting plate, of each buffer spring is connected with a rubber layer.

Preferably, the surface of the rubber layer far away from the buffer spring is connected with a heat insulation layer, the surface of the heat insulation layer far away from the buffer spring is provided with a waterproof coating, and the surface of the waterproof coating far away from the buffer spring is provided with a fluoroplastic layer.

Preferably, the surface of the butterfly valve body is provided with a strip box, and the top of the strip box is connected with the surface of the lower heat insulation cover departing from the electromagnetic layer.

Preferably, the bottom position of rectangular box one side surface installs movable door board through the hinge, movable door board's inside is run through and is installed the locking piece, the internally mounted of rectangular box has the group battery, and group battery and electromagnetic layer electric connection.

Preferably, the fluoroplastic full-lining butterfly valve comprises the following working steps:

s1, when the butterfly valve is used, the rotating handle is rotated to drive the disc and the valve rod to rotate, so that the butterfly plate is driven to turn over inside the butterfly valve body, and the butterfly plate and the inner wall of the butterfly valve body form included angle gaps with different sizes through deflection of the butterfly plate, so that flow control is realized;

s2, in the rotation process of the valve rod, when the valve rod in a static state starts to rotate, the displacement sensor detects that the valve rod has a tendency of rotating displacement, the displacement sensor sends a starting signal to the miniature electric rod, the miniature electric rod contracts and drives the insertion strip to be separated from the inside of the slot, so that the valve rod can normally rotate, the valve rod stops rotating after the deflection angle of the butterfly plate is adjusted, the displacement sensor does not sense that the valve rod is in a moving displacement state, the displacement sensor sends a starting signal to the miniature electric rod, the miniature electric rod extends at the moment, the insertion strip is driven to be inserted into the inside of the slot, and limit constraint processing is formed on the valve rod, so that the influence of the offset of the butterfly plate caused by fluid impact on the angle fixation of the valve rod is reduced, and the angle is ensured to be fixedly maintained when the butterfly valve is used;

s3, when the valve body is used for carrying out high-temperature fluid conveying control, the electromagnetic layer is selectively started according to whether heat preservation is needed or not, when heat dissipation is needed, the electromagnetic layer is started, and then the inserting magnetic strip and the upper heat insulation cover are upwards lifted under the action of electromagnetic repulsion, so that a gap is formed between the upper heat insulation cover and the surface of the butterfly valve body, heat dissipation is facilitated, when heat preservation is needed, the electromagnetic layer is closed, the upper heat insulation cover and the inserting magnetic strip fall into the embedding groove under the action of gravity, and then the upper heat insulation cover and the lower heat insulation cover are mutually matched, a complete closed heat insulation structure is formed on the surface of the butterfly valve body, the loss of heat of internal fluid in the conveying control process is reduced, and the performance of the high-temperature fluid is further ensured;

s4, when the butterfly plate is kept in an intercepting state, fluid in the butterfly valve is intercepted by the butterfly plate to continuously impact the butterfly plate, solid particles in the fluid are intercepted by the blocking net and then are accumulated and transferred to the inside of the containing net box through the leakage hole, the fluid subjected to intercepting and filtering treatment flows out of the inside of the water inlet pipe through the one-way water outlet hole, the solid particles are separated from the fluid, the fact that the fluid wrapped with the solid particles directly scours the surface of the butterfly plate is reduced, and the scouring resistance of the butterfly plate is further guaranteed;

s5, when the butterfly valve is opened, the valve rod rotates, the displacement sensor sends a starting signal to the miniature electronic valve, solid particles accumulated in the containing net box are directly discharged through the discharge pipe at the moment, and then are transferred and conveyed together with fluid in the valve body, so that the possibility of accumulation of the solid particles in the valve body is reduced, the stability of effective components of the fluid can be guaranteed, and residues are avoided;

s6, when the fluid passes through the butterfly plate, the surface of the butterfly plate close to the water inlet end is subjected to an impact effect to further extrude the rubber layer, the buffer spring is extruded, and the impact effect of the fluid is reduced through the buffer effect provided by the buffer spring and the rubber layer.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the butterfly valve, the upper heat insulation cover, the lower heat insulation cover, the embedding groove and the electromagnetic layer are arranged, when the butterfly valve is used for high-temperature liquid transmission control, if the high-temperature liquid needs to be kept warm to maintain the performance of the liquid, the electromagnetic layer does not need to be started, the outer cover has a good heat insulation effect, and if the high-temperature liquid needs to dissipate heat, the electromagnetic layer is started, so that the magnetic repulsion is formed between the electromagnetic layer and the inserting magnetic strip in the embedding groove, the upper heat insulation cover is lifted, a gap is formed between the upper heat insulation cover and the surface of the butterfly valve body, and heat dissipation is facilitated.

2. According to the butterfly valve, the miniature electric rod, the valve rod, the displacement sensor, the inserting strip and the inserting groove are arranged, before the butterfly valve is started, the miniature electric rod contracts and drives the inserting strip to be separated from the inside of the inserting groove, so that the valve rod can rotate normally, after the deflection angle of the butterfly plate is adjusted, the miniature electric rod extends to drive the inserting strip to be inserted into the inside of the inserting groove, the valve rod is subjected to limiting and restraining treatment, the butterfly plate and the valve rod can keep stable angles after the butterfly plate rotates for a certain angle along with the valve rod when receiving the flushing effect of fluid in the valve body, and the normal use of the butterfly valve is ensured.

3. According to the butterfly plate, the anti-abrasion assembly, the discharge pipe and the miniature electronic valve are installed, solid particles in fluid are intercepted by the blocking net and transferred to the interior of the containing net box, and the fluid subjected to intercepting and filtering flows out of the interior of the water inlet pipe through the one-way water outlet hole, so that the solid particles are reduced from scouring the surface of the butterfly plate along with the fluid, and the scouring resistance and the normal service life of the butterfly plate are further ensured.

4. The butterfly plate has a certain buffering effect when encountering fluid impact by virtue of the buffer spring, the rubber layer, the abutting plate and the slide rail which are arranged, and the sliding design of the slide rail and the abutting plate can ensure that the buffer spring can keep flexible extrusion buffering treatment when receiving fluid extrusion in different directions on the front surface and the back surface of the butterfly plate.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the mounting structure of the butterfly plate, the circular groove, the valve rod and the miniature electric rod of the present invention;

FIG. 3 is a schematic view of the butterfly plate and wear assembly mounting structure of the present invention;

FIG. 4 is a schematic view of the valve stem, the insert, the slot, the displacement sensor and the miniature electric rod mounting structure of the present invention;

FIG. 5 is a schematic view of the housing mounting structure of the present invention;

FIG. 6 is a schematic view of the installation structure of the sliver can, the lock block, the battery pack and the movable door panel according to the present invention;

FIG. 7 is a schematic cross-sectional view of a butterfly plate according to the present invention;

fig. 8 is a schematic view of the containing net box, the discharging pipe and the micro electronic valve installation structure of the invention.

In the figure: 1. a butterfly valve body; 2. a tool box; 3. rotating the handle; 4. a butterfly plate; 5. a sliver can; 6. a housing; 7. a disc; 8. a circular groove; 9. a miniature electric rod; 10. a valve stem; 11. a displacement sensor; 12. cutting; 13. a slot; 14. an upper heat insulation cover; 15. a lower heat insulating cover; 16. a fitting groove; 17. an electromagnetic layer; 18. sealing the shaft disc; 19. a locking block; 20. a movable door panel; 21. a battery pack; 22. a storage net box; 23. a leak hole; 24. blocking; 25. a one-way water outlet; 26. an anti-wear assembly; 27. a discharge pipe; 28. a miniature electronic valve; 29. a buffer spring; 30. a fluoroplastic layer; 31. a water-resistant coating; 32. a thermal insulation layer; 33. a rubber layer; 34. a resisting plate; 35. a slide rail.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-8, an embodiment of the present invention is shown: a fluoroplastic full-lining butterfly valve comprises a butterfly valve body 1 and a butterfly plate 4, wherein an outer cover 6 which is arranged in a surrounding mode is arranged on the surface of the butterfly valve body 1, and the outer cover 6 consists of an upper heat-insulating cover 14, a lower heat-insulating cover 15, an embedding groove 16 and an electromagnetic layer 17;

the upper heat insulation cover 14 and the lower heat insulation cover 15 are both in a semicircular design, the bottoms of the two ends of the upper heat insulation cover 14 are respectively provided with an inserting magnetic strip, the tops of the two ends of the lower heat insulation cover 15 are respectively provided with an embedding groove 16, the bottoms of the embedding grooves 16 are respectively provided with an electromagnetic layer 17, and the cross section of the electromagnetic layer 17 is in a concave shape;

the surface mounting of butterfly valve body 1 has rectangular box 5, and the top of rectangular box 5 with separate the surface connection that temperature cover 15 deviates from electromagnetic layer 17 down, movable door plant 20 is installed through the hinge in the bottom position of 5 side surfaces of rectangular box, movable door plant 20's inside is run through and is installed locking piece 19, the internally mounted of rectangular box 5 has group battery 21, and group battery 21 and electromagnetic layer 17 electric connection.

Further, when the butterfly valve is used, the strip box 5 supports and limits the lower heat insulation cover 15, so that the lower heat insulation cover 15 can have good supporting and mounting stability, in addition, the battery pack 21 mounted in the strip box 5 provides energy supply for power supply of the electromagnetic layer 17, when the battery pack 21 needs to be replaced, a key is inserted into the lock block 19, and then the movable door plate 20 in a blocking state is opened, so that the battery pack 21 stored in the strip box 5 is taken out;

when the butterfly valve is used for controlling and transmitting high-temperature fluid, the electromagnetic layer 17 is selectively started according to whether the liquid needs to be insulated or not, when the high-temperature liquid needs to be insulated to maintain the performance of the liquid, the electromagnetic layer 17 does not need to be started, at the moment, the upper heat-insulating cover 14 and the lower heat-insulating cover 15 are in embedded connection through the embedded groove 16 and the inserted magnetic strip, so that the outer cover 6 is in an integrated closed design, and a good heat-insulating effect is achieved;

when high temperature liquid need dispel the heat in order to reduce to the damage of butterfly valve body 1 internal component, start electromagnetic layer 17, and then make electromagnetic layer 17 and the inside grafting magnetic stripe of gomphosis groove 16 form magnetic repulsion, so that form the lifting processing to last heat shield 14, and then make the surface of last heat shield 14 and butterfly valve body 1 form the clearance, convenient heat dissipation.

The utility model discloses a butterfly valve, including butterfly valve body 1, tool holder 2, disk 7, top fixedly connected with rotation handle 3 of disk 7, tool holder 2's internally mounted has valve rod 10, and the top of valve rod 10 runs through the top of tool holder 2 and is connected with the bottom of disk 7, and the bottom of valve rod 10 runs through the inside that extends to butterfly valve body 1, the surface of valve rod 10 is around equidistance and is arranged slot 13, and the length of slot 13 is less than the length of valve rod 10, miniature electric pole 9 is all installed to four inner walls of tool holder 2, the trailing end connection of miniature electric pole 9 has cutting 12, and the length of cutting 12 is less than the length of slot 13, the surface mounting of valve rod 10 has displacement inductor 11, and displacement inductor 11 is located the below of slot 13, the displacement sensor 11 is electrically connected with the miniature electric rod 9.

Further, the rotating handle 3 is rotated to drive the disc 7 and the valve rod 10 to rotate, so that the butterfly plate 4 is driven to turn over in the butterfly valve body 1, and the butterfly plate 4 and the inner wall of the butterfly valve body 1 form included angle gaps with different sizes through deflection of the butterfly plate 4, so that flow control is realized;

before launching the butterfly valve, there is the rotational motion trend in displacement inductor 11 induction valve rod 10, miniature electric rod 9 shrink this moment and drive the inside that cutting 12 breaks away from slot 13, make valve rod 10 can normally rotate under the drive of rotation handle 3, after the angle of deflection of butterfly plate 4 has been adjusted, valve rod 10 stall, miniature electric rod 9 extends this moment, and then drive cutting 12 and inject the inside of slot 13, form spacing restraint processing to valve rod 10, make butterfly plate 4 rotate certain angle after following valve rod 10 and when accepting the inside fluidic scouring action of valve body, butterfly plate 4 and valve rod 10 homoenergetic remain stable angle, ensure the normal use of butterfly valve.

The circular slot 8 has been cup jointed on the tail end surface of valve rod 10, the surface connection of circular slot 8 has butterfly board 4, and circular slot 8 and valve rod 10 pass through bolted connection, the back mounted of butterfly board 4 has abrasionproof to decrease subassembly 26, the bottom of circular slot 8 is connected with sealed reel 18, and the bottom of sealed reel 18 and the internal surface connection of butterfly valve body 1, abrasionproof decreases subassembly 26 including the inlet tube, accomodate net box 22, small opening 23, block 24 and one-way apopore 25, the surface of inlet tube is equipped with the one-way apopore 25 that runs through, and the internally mounted of one-way apopore 25 has a check valve, the internally mounted of inlet tube has block 24, and block 24 is located the rear of one-way apopore 25, the inner wall of inlet tube is equipped with small opening 23, and small opening 23 is located the rear of block 24, inlet tube surface mounting accomodates net box 22, and accomodates net box 22 and is located small opening 23 under, the bottom of the containing net box 22 is provided with a discharge pipe 27 in a penetrating way, the surface of the discharge pipe 27 is provided with a micro electronic valve 28, and the micro electronic valve 28 is electrically connected with the displacement sensor 11.

Further, when the butterfly plate 4 keeps an intercepting state, the butterfly plate 4 keeps the largest contact area with fluid in the butterfly valve, solid particles in the fluid are intercepted by the blocking net 24 and accumulated and transferred to the interior of the containing net box 22 through the leakage hole 23, the fluid subjected to intercepting and filtering treatment flows out from the interior of the water inlet pipe through the one-way water outlet hole 25, therefore, the solid particles are reduced from scouring the surface of the butterfly plate 4 along with the fluid, the scouring resistance and the normal service life of the butterfly plate 4 are further ensured, when the butterfly valve is opened for releasing the flow, the valve rod 10 rotates, at the moment, the displacement sensor 11 sends a starting signal to the miniature electronic valve 28, at the moment, the solid particles accumulated in the containing net box 22 are directly discharged through the discharge pipe 27 and are further transferred and transferred together with the fluid in the valve body, the possibility of accumulation of the solid particles in the valve body is reduced, and meanwhile, the stability of effective components of the fluid can also be ensured, avoiding residue.

Slide rail 35 that upper and lower symmetrical arranged is installed to the inner wall of butterfly plate 4, the inside sliding connection of slide rail 35 has and supports board 34, support board 34's front and back and all install buffer spring 29, buffer spring 29 keeps away from the one end that supports board 34 and is connected with rubber layer 33, the surface that buffer spring 29 was kept away from on rubber layer 33 is connected with heat insulating layer 32, the surface mounting that buffer spring 29 was kept away from on heat insulating layer 32 has waterproof coating 31, the surface mounting that buffer spring 29 was kept away from to waterproof coating 31 has fluoroplastic layer 30.

Further, the fluoroplastic layer 30 has a certain corrosion resistance, so that the corrosion effect of fluid inside the valve body on the butterfly plate 4 can be reduced, the design of the waterproof coating 31 can reduce the corrosion threat of the fluid on the internal structure of the butterfly plate 4, and the heat insulation layer 32 can reduce the interference of high temperature to the internal rubber layer 33 when high-temperature fluid is conveyed inside the valve body, so that the rubber layer 33 is prevented from being modified by heating;

through the cooperation of the buffer spring 29 and the rubber layer 33, the butterfly plate 4 can have a certain buffer treatment effect when encountering fluid impact, and the sliding design of the sliding rail 35 and the abutting plate 34 can enable the buffer spring 29 to keep flexible extrusion buffer treatment when receiving fluid extrusion in different directions on the front surface and the back surface of the butterfly plate 4.

The working steps of the fluoroplastic full-lining butterfly valve are as follows:

s1, when the butterfly valve is used, the rotating handle 3 is rotated to drive the disc 7 and the valve rod 10 to rotate, so that the butterfly plate 4 is driven to turn over inside the butterfly valve body 1, and the butterfly plate 4 and the inner wall of the butterfly valve body 1 form included angle gaps with different sizes through deflection of the butterfly plate 4, so that flow control is realized;

s2, during the rotation of the valve rod 10, when the valve rod 10 in the stationary state starts to rotate, the displacement sensor 11 detects that the valve rod 10 has a trend of rotating displacement, at the moment, the displacement sensor 11 sends a starting signal to the miniature electric rod 9, at the moment, the miniature electric rod 9 contracts and drives the inserting strip 12 to be separated from the inner part of the slot 13, so that the valve rod 10 can normally rotate, then after the deflection angle of the butterfly plate 4 is adjusted, the valve rod 10 stops rotating, at this time, the displacement sensor 11 does not sense that the valve rod 10 is in a motion displacement state, the displacement sensor 11 sends a starting signal to the miniature electric rod 9, at this time, the miniature electric rod 9 extends, and then the insertion strip 12 is driven to be inserted into the slot 13, limiting constraint processing is performed on the valve rod 10, so that the influence of deviation of the butterfly plate 4 caused by fluid impact on angle fixation of the valve rod 10 is reduced, and the angle fixation of the butterfly valve in use is guaranteed;

s3, when the valve body is used for carrying out high-temperature fluid conveying control, the electromagnetic layer 17 is selectively started according to whether heat preservation is needed or not, when heat dissipation is needed, the electromagnetic layer 17 is started, the inserting magnetic strip and the upper heat insulation cover 14 are enabled to be lifted upwards under the action of electromagnetic repulsion, a gap is formed between the upper heat insulation cover 14 and the surface of the butterfly valve body 1, heat dissipation is facilitated, when heat preservation is needed, the electromagnetic layer 17 is closed, the upper heat insulation cover 14 and the inserting magnetic strip fall into the embedding groove 16 under the action of gravity, the upper heat insulation cover 14 and the lower heat insulation cover 15 are matched with each other, a complete closed heat insulation structure is formed on the surface of the butterfly valve body 1, loss of heat of internal fluid in the conveying control process is reduced, and the performance of the high-temperature fluid is guaranteed;

s4, when the butterfly plate 4 keeps an intercepting state, fluid inside the butterfly valve is intercepted by the butterfly plate 4 to continuously impact the butterfly plate 4, solid particles in the fluid are intercepted by the blocking net 24 and then accumulated and transferred to the inside of the containing net box 22 through the leakage hole 23, the fluid subjected to intercepting and filtering treatment flows out from the inside of the water inlet pipe through the one-way water outlet hole 25, the solid particles are separated from the fluid, the fact that the fluid wrapped with the solid particles directly scours the surface of the butterfly plate 4 is reduced, and then the scouring resistance of the butterfly plate 4 is guaranteed;

s5, when the butterfly valve is opened later, the valve rod 10 rotates, the displacement sensor 11 sends a starting signal to the miniature electronic valve 28, at the moment, the solid particles accumulated in the containing net box 22 are directly discharged through the discharge pipe 27 and then transferred and conveyed together with the fluid in the valve body, the possibility of accumulation of the solid particles in the valve body is reduced, meanwhile, the stability of the effective components of the fluid can be ensured, and residues are avoided;

s6, when the fluid passes through the butterfly plate 4, the surface of the butterfly plate 4 close to the water inlet end is subjected to impact action to press the rubber layer 33, the buffer spring 29 is pressed, and the impact action of the fluid is reduced through the buffer action provided by the buffer spring 29 and the rubber layer 33.

The working principle is as follows: when the butterfly valve is used, when the valve rod 10 in a static state starts to rotate, the displacement sensor 11 detects that the valve rod 10 has a tendency of rotary displacement, at the moment, the miniature electric rod 9 contracts and drives the inserting strip 12 to be separated from the inside of the slot 13, then after the deflection angle of the butterfly plate 4 is adjusted, the valve rod 10 stops rotating, the miniature electric rod 9 extends to further drive the inserting strip 12 to be inserted into the inside of the slot 13, limit constraint processing is formed on the valve rod 10, further, the influence of the offset of the butterfly plate 4 caused by fluid impact on the angle fixation of the valve rod 10 is reduced, and the angle fixation and the maintenance of the angle of the butterfly valve in use are ensured;

in addition, when the valve body is used for carrying out conveying control on high-temperature fluid, the electromagnetic layer 17 is selectively started according to whether heat preservation is needed or not, when heat dissipation is needed, the electromagnetic layer 17 is started, so that the plug-in magnetic strip and the upper heat insulation cover 14 are lifted upwards, heat dissipation is facilitated, when heat preservation is needed, the outer cover 6 forms a complete closed heat insulation structure on the surface of the butterfly valve body 1, loss of heat of the internal fluid in the conveying control process is reduced, and the performance of the high-temperature fluid is further ensured;

in the use process of the butterfly valve, solid particles in fluid are intercepted by the blocking net 24 and then transferred into the containing net box 22, so that the solid particles are separated from the fluid, the direct scouring of the fluid wrapped with the solid particles on the surface of the butterfly plate 4 is reduced, the scouring resistance of the butterfly plate 4 is further ensured, then when the butterfly valve is opened, the valve rod 10 rotates, the miniature electronic valve 28 is started, at the moment, the solid particles accumulated in the containing net box 22 are directly discharged through the discharge pipe 27 and then transferred and conveyed together with the fluid in the valve body, the possibility of accumulation of the solid particles in the valve body is reduced, meanwhile, the stability of effective components of the fluid can be ensured, and residues are avoided;

when fluid passes through the butterfly plate 4, the surface of the butterfly plate 4 close to the water inlet end is subjected to impact action to press the rubber layer 33, the buffer spring 29 is subjected to pressing treatment, and the impact action of the fluid is reduced through the buffer action provided by the buffer spring 29 and the rubber layer 33.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a fluoroplastics full lining butterfly valve, includes butterfly valve body (1) and butterfly plate (4), its characterized in that: the surface of the butterfly valve body (1) is provided with a surrounding outer cover (6), and the outer cover (6) consists of an upper heat-insulating cover (14), a lower heat-insulating cover (15), an embedded groove (16) and an electromagnetic layer (17);

the upper heat insulation cover (14) and the lower heat insulation cover (15) are both in a semicircular design, the bottoms of the two ends of the upper heat insulation cover (14) are respectively provided with an inserting magnetic strip, the tops of the two ends of the lower heat insulation cover (15) are respectively provided with an embedding groove (16), the bottoms of the embedding grooves (16) are respectively provided with an electromagnetic layer (17), and the cross section of the electromagnetic layer (17) is in a concave shape;

tool box (2) are installed at the top of butterfly valve body (1), and tool box (2) are located the place ahead of dustcoat (6), disc (7) are installed through the shaft member in the top of tool box (2), the top fixedly connected with of disc (7) rotates handle (3).

2. A fluoroplastic full-lined butterfly valve according to claim 1, wherein: the internally mounted of instrument box (2) has valve rod (10), and the top of valve rod (10) runs through the top of instrument box (2) and is connected with the bottom of disc (7), and the bottom of valve rod (10) runs through the inside that extends to butterfly valve body (1), slot (13) have been arranged around the equidistance to the surface of valve rod (10), and the length of slot (13) is less than the length of valve rod (10), miniature electronic pole (9) are all installed to four inner walls of instrument box (2), the trailing end connection of miniature electronic pole (9) has cutting (12), and the length of cutting (12) is less than the length of slot (13), the surface mounting of valve rod (10) has displacement inductor (11), and displacement inductor (11) are located the below of slot (13), displacement inductor (11) and miniature electronic pole (9) electric connection.

3. A fluoroplastic full-lined butterfly valve according to claim 2, wherein: circular slot (8) have been cup jointed on the tail end surface of valve rod (10), the surface of circular slot (8) is connected with butterfly plate (4), and circular slot (8) and valve rod (10) pass through bolted connection, the back mounted of butterfly plate (4) has abrasionproof damage subassembly (26), the bottom of circular slot (8) is connected with sealed reel (18), and the internal surface connection of the bottom of sealed reel (18) and butterfly valve body (1).

4. A fluoroplastic full-lined butterfly valve according to claim 3, wherein: abrasionproof decreases subassembly (26) is including the inlet tube, accomodate net box (22), small opening (23), block (24) and one-way apopore (25), the surface of inlet tube is equipped with one-way apopore (25) that runs through, and the internally mounted of one-way apopore (25) has the check valve, the internally mounted of inlet tube has block (24), and block (24) are located the rear of one-way apopore (25), the inner wall of inlet tube is equipped with small opening (23), and small opening (23) are located the rear of block (24), inlet tube surface mounting accomodates net box (22), and accomodates net box (22) and be located small opening (23) under.

5. A fluoroplastic full-lined butterfly valve according to claim 4, wherein: accomodate the bottom of net box (22) and run through and install row material pipe (27), the surface mounting who arranges material pipe (27) has miniature electronic valve (28), and miniature electronic valve (28) and displacement sensor (11) electric connection.

6. A fluoroplastic full-lined butterfly valve according to claim 5, wherein: slide rails (35) which are symmetrically arranged up and down are installed on the inner wall of the butterfly plate (4), a supporting plate (34) is connected to the inside of the slide rails (35) in a sliding mode, buffer springs (29) are installed on the front face and the back face of the supporting plate (34), and one ends, far away from the supporting plate (34), of the buffer springs (29) are connected with rubber layers (33).

7. A fluoroplastic full-lined butterfly valve according to claim 6, wherein: the surface that buffer spring (29) was kept away from in rubber layer (33) is connected with heat insulating layer (32), the surface mounting that buffer spring (29) was kept away from in heat insulating layer (32) has waterproof coating (31), surface mounting that buffer spring (29) was kept away from in waterproof coating (31) has fluoroplastics layer (30).

8. A fluoroplastic full-lined butterfly valve according to claim 7, wherein: the surface mounting of butterfly valve body (1) has rectangular box (5), and the top of rectangular box (5) and lower heat shield (15) deviate from the surface connection of electromagnetic layer (17).

9. A fluoroplastic full-lined butterfly valve according to claim 8, wherein: the improved structure is characterized in that a movable door plate (20) is installed at the bottom position of one side surface of the strip box (5) through a hinge, a locking block (19) is installed inside the movable door plate (20) in a penetrating mode, a battery pack (21) is installed inside the strip box (5), and the battery pack (21) is electrically connected with the electromagnetic layer (17).

10. A fluoroplastic full-lined butterfly valve according to claim 9 and operating according to the following steps:

s1, when the butterfly valve is used, the rotating handle (3) is rotated, the disc (7) and the valve rod (10) are driven to rotate, the butterfly plate (4) is driven to turn over inside the butterfly valve body (1), and through deflection of the butterfly plate (4), included angle gaps with different sizes are formed between the butterfly plate (4) and the inner wall of the butterfly valve body (1), so that flow control is achieved;

s2, in the rotating process of a valve rod (10), when the valve rod (10) in a static state starts to rotate, a displacement sensor (11) detects that the valve rod (10) has a tendency of rotating displacement, at the moment, the displacement sensor (11) sends a starting signal to a miniature electric rod (9), at the moment, the miniature electric rod (9) contracts and drives an inserting strip (12) to be separated from the inside of a slot (13), so that the valve rod (10) can normally rotate, then after the deflection angle of a butterfly plate (4) is adjusted, the valve rod (10) stops rotating, at the moment, the displacement sensor (11) does not sense that the valve rod (10) is in a moving displacement state any more, the displacement sensor (11) sends a starting signal to the miniature electric rod (9), at the moment, the miniature electric rod (9) extends, and then the inserting strip (12) is driven to be inserted into the inside of the slot (13), and limit constraint processing is formed on the valve rod (10), further reducing the influence of the deviation of the butterfly plate (4) caused by the fluid impact on the angle fixation of the valve rod (10), and ensuring the angle fixation of the butterfly valve in use;

s3, when the valve body is used for carrying out high-temperature fluid conveying control, the electromagnetic layer (17) is selectively started according to whether heat preservation is needed or not, when heat dissipation is needed, the electromagnetic layer (17) is started, the plug-in magnetic stripe and the upper heat-insulating cover (14) are enabled to be lifted upwards under the action of electromagnetic repulsion, a gap is formed between the upper heat-insulating cover (14) and the surface of the butterfly valve body (1), heat dissipation is facilitated, when heat preservation is needed, the electromagnetic layer (17) is closed, the upper heat-insulating cover (14) and the plug-in magnetic stripe fall into the embedding groove (16) under the action of gravity, the upper heat-insulating cover (14) and the lower heat-insulating cover (15) are matched with each other, a complete closed heat-insulating structure is formed on the surface of the butterfly valve body (1), loss of heat of internal fluid in the conveying control process is reduced, and the performance of the high-temperature fluid is further guaranteed;

s4, when the butterfly plate (4) keeps an intercepting state, fluid in the butterfly valve is intercepted by the butterfly plate (4) and then continuously impacts the butterfly plate (4), solid particles in the fluid are intercepted by the blocking net (24) and then accumulated and transferred to the inside of the containing net box (22) through the leakage holes (23), the fluid subjected to intercepting and filtering treatment flows out of the inside of the water inlet pipe through the one-way water outlet hole (25), the solid particles are separated from the fluid, the fact that the fluid wrapped with the solid particles directly erodes the surface of the butterfly plate (4) is reduced, and further the scouring resistance of the butterfly plate (4) is guaranteed;

s5, when the butterfly valve is opened later, the valve rod (10) rotates, the displacement sensor (11) sends a starting signal to the miniature electronic valve (28), solid particles accumulated in the containing net box (22) are directly discharged through the discharge pipe (27), and then are transferred and conveyed together with fluid in the valve body, so that the possibility of accumulation of the solid particles in the valve body is reduced, the stability of effective components of the fluid can be ensured, and residues are avoided;

s6, when the fluid passes through the butterfly plate (4), the surface of the butterfly plate (4) close to the water inlet end is subjected to an impact action to further extrude the rubber layer (33), the buffer spring (29) is extruded, and the impact action of the fluid is reduced through the buffer action provided by the buffer spring (29) and the rubber layer (33).