CN214946438U - High-frequency switch high-performance butterfly valve - Google Patents
High-frequency switch high-performance butterfly valve Download PDFInfo
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- CN214946438U CN214946438U CN202120886348.0U CN202120886348U CN214946438U CN 214946438 U CN214946438 U CN 214946438U CN 202120886348 U CN202120886348 U CN 202120886348U CN 214946438 U CN214946438 U CN 214946438U
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Abstract
The utility model relates to the technical field of butterfly valves, in particular to a high-frequency switch high-performance butterfly valve, which comprises a wafer-type double-eccentric valve body, a valve rod, a valve plate and a driving mechanism, wherein the valve rod is rotatably sleeved in the valve body, the upper end of the valve rod is in transmission connection with the driving mechanism, the valve plate is detachably sleeved at the lower end of the valve rod, a stepped groove is formed in the flow channel end surface of the valve body, a valve seat and an insert are sequentially assembled and embedded in the stepped groove from inside to outside, and the valve seat is detachably, pressure-relief and fastened and fixed through the insert at the outer side; the valve seat comprises a conical surface groove, a tooth-shaped groove and an inner ring groove, the conical surface groove is formed in the axial direction of the valve seat close to one side of the valve plate, and the inner ring groove is formed in the axial direction of the valve seat on the other side. The problem of current butterfly valve disk seat can not compensate the change of temperature and pressure, can not compensate more and use because of long-term switch wearing and tearing, the leakproofness is relatively poor, need increase O shape circle or metal part and keep sealed, life is short, and the disk seat dismouting is changed trouble is solved.
Description
Technical Field
The utility model relates to a butterfly valve technical field, concretely relates to high frequency switch high performance butterfly valve.
Background
The butterfly valve is a valve which is widely applied to pipeline systems in industries such as petroleum, chemical engineering, ships, nuclear power stations and the like and used for controlling the circulation of pipeline media, is opened and closed by rotating a butterfly plate around a valve shaft, and can be used for controlling the flow of various types of fluids such as air, water, steam, corrosive media, slurry, oil products, liquid metal, radioactive media and the like.
The existing butterfly valve seat can not compensate the change of temperature and pressure, can not compensate the abrasion caused by long-term switch use, has poor sealing performance, needs to increase an O-shaped ring or a metal part to keep sealing, has short service life, and is troublesome in valve seat dismounting and replacing. Therefore, it is necessary to develop a high-frequency switch high-performance butterfly valve to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a high frequency switch high performance butterfly valve has solved the change that current butterfly valve disk seat can not compensate temperature and pressure, can not compensate more and use because of long-term switch wearing and tearing, and the leakproofness is relatively poor, needs to increase O shape circle or metal parts and keeps sealed, and life is short, and the trouble problem is changed in the disk seat dismouting.
The utility model discloses a following technical scheme realizes:
a high-frequency switch high-performance butterfly valve comprises a wafer type double-eccentric valve body, a valve rod, a valve plate and a driving mechanism, wherein the valve rod is rotatably sleeved inside the valve body, the upper end of the valve rod is in transmission connection with the driving mechanism, the valve plate is detachably sleeved at the lower end of the valve rod, a stepped groove is formed in the end face of a flow channel of the valve body, a valve seat and an insert are sequentially assembled and embedded in the stepped groove from inside to outside, and the valve seat is detachably pressed and fixed through the insert at the outer side;
the valve seat comprises a conical surface groove, a tooth-shaped groove and an inner ring groove, the conical surface groove is formed in the valve seat in the axial direction on one side close to the valve plate, the inner ring groove is formed in the valve seat in the axial direction on the other side, the conical surface groove is communicated with the inner ring groove, the tooth-shaped groove is formed in the valve seat on the outer side of the inner ring groove, and an embedded part is formed between the tooth-shaped groove and the inner ring groove;
the diameter of the conical surface groove gradually decreases from inside to outside, and meanwhile, the diameter of the inner ring groove is larger than the outermost side diameter of the conical surface groove.
Preferably, the upper end and the lower end of the valve rod are rotatably installed inside the valve body through bearings, the packing group surrounding the valve rod is further arranged above the bearings on the upper side, meanwhile, the upper side of the packing group is pressed and fixed through a packing gland, and the packing gland is detachably fixed on the valve body through bolts.
Preferably, the bearing is a stainless steel bearing with a PTFE lining, and the packing set is made of PTFE or graphite V-shaped packing materials.
Preferably, the valve rod and the valve plate slidably disposed on the valve rod are press-in connected and fixed by a wedge pin.
Preferably, the drive mechanism includes, but is not limited to, a manual worm gear case, a pneumatic/hydraulic double-acting piston drive, a spring-return pneumatic drive, a spring diaphragm drive, or a high-pressure hydraulic drive.
Preferably, the disk seat is made for the elastic metal material, just inlay on the cell surface in conical surface groove and be equipped with the rubber sealing layer, simultaneously the outer peripheral face of disk seat with the ladder groove cooperatees and sets up.
Preferably, the insert further includes a through groove, a first pressing groove and a second pressing groove, the through groove is formed in the axial direction of the insert, the first pressing groove is formed in the outer side of the through groove, and the second pressing groove is formed in the outer side of the first pressing groove, so that a pressing portion is formed between the first pressing groove and the second pressing groove.
Preferably, the outer peripheral wall of the insert is connected with the inner peripheral wall of the stepped groove in an embedded and detachable mode through a clamping ring in a pressing mode.
Preferably, thrust washers are respectively abutted between the valve plate and the bearings on the upper side and the lower side, and the thrust washers are sleeved on the valve rod.
Preferably, the end surface of one side of the valve plate is matched with the end surface close to the valve seat.
The utility model has the advantages that:
the utility model solves the problems that the valve seat of the existing butterfly valve can not compensate the temperature and pressure changes, can not compensate the abrasion caused by long-term switch use, has poor sealing performance, needs to add an O-shaped ring or a metal part to keep sealing, has short service life and is troublesome to disassemble, assemble and replace;
and the utility model discloses compact structure is novel, reasonable in design, has stronger practicality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of the structure of the present invention;
FIG. 2 is a structural sectional view of the present invention;
fig. 3 is a partial enlarged structural view of a in the present invention.
In the figure: 1-valve body, 2-valve rod, 3-valve plate, 4-driving mechanism, 5-step groove, 6-valve seat, 61-conical groove, 62-tooth groove, 63-inner ring groove, 64-embedding part, 7-embedded part, 71-through groove, 72-first pressing groove, 73-second pressing groove, 74-pressing part, 8-bearing, 9-packing group, 10-packing gland, 11-bolt, 12-wedge pin, 13-snap ring and 14-thrust washer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Please refer to fig. 1 to 3, an embodiment of the present invention specifically discloses a technical scheme for providing a high-frequency switch high-performance butterfly valve, including a wafer-type double-eccentric valve body 1, a valve rod 2, a valve plate 3 and a driving mechanism 4, wherein the valve rod 2 is rotatably sleeved inside the valve body 1, the upper end of the valve rod 2 is in transmission connection with the driving mechanism 4, the valve plate 3 is detachably sleeved at the lower end of the valve rod 2, a stepped groove 5 is formed on a flow passage end surface of the valve body 1, a valve seat 6 and an insert 7 are sequentially assembled and embedded in the stepped groove 5 from inside to outside, and the valve seat 6 is detachably fastened and fixed by the insert 7 at the outside; the valve seat 6 is convenient to disassemble and assemble when needing to be overhauled, disassembled and replaced, only the insert 7 needs to be disassembled and assembled, and the valve rod 2 or the valve plate 3 does not need to be disassembled and assembled. Meanwhile, the insert 7 protects the valve seat 6 to reduce the degree of erosion or abrasion, and the protection effect is improved.
The valve seat 6 comprises a conical surface groove 61, a tooth-shaped groove 62 and an inner ring groove 63, the conical surface groove 61 is axially arranged on the valve seat 6 at one side close to the valve plate 3, the inner ring groove 63 is axially arranged on the valve seat 6 at the other side, the conical surface groove 61 is communicated with the inner ring groove 63, the tooth-shaped groove 62 is arranged on the valve seat 6 at the outer side of the inner ring groove 63, and an embedding part 64 is formed between the tooth-shaped groove 62 and the inner ring groove 63; by the arrangement of the tapered groove 61, when the valve plate 3 and the valve seat 6 are abutted to form a sealing structure, a sector-shaped spherical surface is reliably sealed between the lip-type elastic valve seat 6 and the valve plate 3, and the valve plate 3 is more tightly closed as it is pushed toward the valve seat 6. Meanwhile, the valve body 1 is matched with the insert 7 to firmly fix the valve seat 6 to prevent the valve seat from being separated.
The diameter of the conical surface groove 61 gradually decreases from inside to outside, and the diameter of the inner ring groove 63 is larger than the outermost diameter of the conical surface groove 61.
As shown in fig. 1 to 3, specifically, the upper end and the lower end of the valve rod 2 are rotatably mounted inside the valve body 1 through a bearing 8, a packing group 9 surrounding the valve rod 2 is further included above the bearing 8 on the upper side, meanwhile, the upper side of the packing group 9 is pressed and fixed through a packing gland 10, and the packing gland 10 is detachably fixed on the valve body 1 through a bolt 11.
Specifically, the bearing 8 is a stainless steel bearing with a PTFE lining, is corrosion-resistant, high in wear resistance and capable of self-lubricating, and the filler group 9 is made of PTFE or graphite V-shaped filler materials.
Specifically, the valve rod 2 and the valve plate 3 which is arranged on the valve rod in a sliding penetrating mode are fixedly connected through the wedge pins 12 in a pressing-in type welding mode, shearing stress is reduced, penetration leakage is prevented, and meanwhile looseness caused by vibration cannot occur.
Specifically, the driving mechanism 4 includes, but is not limited to, a manual worm gear box type, a pneumatic/hydraulic double-acting piston type driving device, a spring-return pneumatic type driving device, a spring diaphragm driving device or a high-pressure hydraulic device. Drive valve rod 2 through above-mentioned actuating mechanism 4 and rotate, valve rod 2 rotates and can drive the rotation of valve plate 3 to the realization is opened the butterfly valve or is closed.
Specifically, disk seat 6 is made for the elastic metal material, just inlay on the cell surface of conical surface groove 61 and be equipped with the rubber sealing layer, simultaneously disk seat 6's outer peripheral face with 5 cooperatees of ladder groove set up. When the elastic valve seat 6 is abutted by the action of the valve plate 3 when closed, the elastic valve seat will deform slightly, so that the sealing surface of the valve seat 6 and the edge of the valve plate 3 can keep durable sealing. And through the arrangement of the rubber sealing layer, the sealing matching degree can be further improved.
Specifically, the insert 7 further includes a through groove 71, a first pressing groove 72 and a second pressing groove 73, the through groove 71 is formed in the axial direction of the insert 7, the first pressing groove 72 is formed in the outer side of the through groove 71, the second pressing groove 73 is formed in the outer side of the first pressing groove 72, and a pressing portion 74 is formed between the first pressing groove 72 and the second pressing groove 73. The first press-fit groove 72, the second press-fit groove 73, and the press-fit portion 74 are fitted into the tooth-shaped groove 62 of the valve seat 6, so that the stability of the assembly between the insert 7 and the valve seat 6 is further improved, and the excessive movement of the valve seat 6 is restricted.
Specifically, the outer peripheral wall of the insert 7 and the inner peripheral wall of the stepped groove 5 are connected in an embedded detachable pressing mode through a clamping ring 13.
Specifically, thrust washers 14 are respectively abutted between the valve plate 3 and the bearings 8 on the upper side and the lower side, and the thrust washers 14 are sleeved on the valve rod 2, so that the valve plate 3 is not deviated.
Specifically, the end face of one side of the valve plate 3 is matched with the end face close to the valve seat 6.
The utility model discloses under the design and the use that adopt above-mentioned structure, solved the change that current butterfly valve disk seat 6 can not compensate temperature and pressure, more can not compensate because of long-term switch uses wearing and tearing, the leakproofness is relatively poor, needs to increase O shape circle or metal parts and keeps sealed, and life is short, and the trouble problem is changed in 6 dismouting of disk seat.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The high-frequency switch high-performance butterfly valve comprises a wafer type double-eccentric valve body (1), a valve rod (2), a valve plate (3) and a driving mechanism (4), wherein the valve rod (2) is sleeved in the valve body (1) in a rotating mode, the upper end of the valve rod (2) is connected with the driving mechanism (4) in a transmission mode, the valve plate (3) is sleeved at the lower end of the valve rod (2) in a detachable mode, and the butterfly valve is characterized in that a stepped groove (5) is formed in the end face of a flow channel of the valve body (1), a valve seat (6) and an embedded piece (7) are sequentially assembled and embedded in the stepped groove (5) from inside to outside, and the valve seat (6) is detachably compressed and fixed through the embedded piece (7) on the outer side;
the valve seat (6) comprises a conical surface groove (61), a tooth-shaped groove (62) and an inner ring groove (63), the conical surface groove (61) is axially formed in the valve seat (6) close to one side of the valve plate (3), the inner ring groove (63) is axially formed in the valve seat (6) on the other side, the conical surface groove (61) is communicated with the inner ring groove (63), the tooth-shaped groove (62) is formed in the valve seat (6) on the outer side of the inner ring groove (63), and an embedding part (64) is formed between the tooth-shaped groove (62) and the inner ring groove (63);
the diameter of the conical surface groove (61) is gradually reduced from inside to outside, and meanwhile, the diameter of the inner ring groove (63) is larger than the outermost side diameter of the conical surface groove (61).
2. The high-frequency switch high-performance butterfly valve according to claim 1, wherein the upper end and the lower end of the valve rod (2) are rotatably mounted inside the valve body (1) through bearings (8), a packing set (9) surrounding the valve rod (2) is further arranged above the upper side of the bearings (8), meanwhile, the packing set (9) is pressed and fixed through a packing gland (10), and the packing gland (10) is detachably fixed on the valve body (1) through bolts (11).
3. A high frequency switch high performance butterfly valve according to claim 2, characterized in that said bearing (8) is a PTFE lined stainless steel bearing and said packing set (9) is made of PTFE or graphite V-shaped packing material.
4. A high-frequency switch high-performance butterfly valve according to claim 1, characterized in that the valve rod (2) and the valve plate (3) slidably arranged on the valve rod (2) are fixed by a press-in connection through a wedge pin (12).
5. A high frequency switch high performance butterfly valve according to claim 1, characterized in that the driving mechanism (4) is a manual worm gear box type, a pneumatic/hydraulic double acting piston type driving device, a spring return pneumatic type driving device, a spring diaphragm driving device or a high pressure hydraulic device.
6. A high-frequency switch high-performance butterfly valve according to claim 1, wherein the valve seat (6) is made of elastic metal material, and a rubber sealing layer is embedded on the groove surface of the conical groove (61), and the outer peripheral surface of the valve seat (6) is matched with the stepped groove (5).
7. The high-frequency switch high-performance butterfly valve according to claim 1, wherein the insert (7) further comprises a through groove (71), a first pressing groove (72) and a second pressing groove (73), the through groove (71) is axially formed in the insert (7), the first pressing groove (72) is formed in the outer side of the through groove (71), the second pressing groove (73) is formed in the outer side of the first pressing groove (72), and a pressing portion (74) is formed between the first pressing groove (72) and the second pressing groove (73).
8. A high-frequency switch high-performance butterfly valve according to claim 7, characterized in that the outer peripheral wall of the insert (7) and the inner peripheral wall of the stepped groove (5) are in embedded detachable pressing connection through a clamping ring (13).
9. The high-frequency switch high-performance butterfly valve according to claim 2, wherein thrust washers (14) are respectively abutted between the valve plate (3) and the bearings (8) on the upper and lower sides, and the thrust washers (14) are sleeved on the valve rod (2).
10. A high-frequency switch high-performance butterfly valve according to claim 1, characterized in that the end surface of one side of said valve plate (3) is fitted with the end surface close to said valve seat (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120886348.0U CN214946438U (en) | 2021-04-27 | 2021-04-27 | High-frequency switch high-performance butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120886348.0U CN214946438U (en) | 2021-04-27 | 2021-04-27 | High-frequency switch high-performance butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214946438U true CN214946438U (en) | 2021-11-30 |
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ID=79068027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120886348.0U Active CN214946438U (en) | 2021-04-27 | 2021-04-27 | High-frequency switch high-performance butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214946438U (en) |
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2021
- 2021-04-27 CN CN202120886348.0U patent/CN214946438U/en active Active
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