CN210600205U - Shock attenuation butterfly valve - Google Patents
Shock attenuation butterfly valve Download PDFInfo
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- CN210600205U CN210600205U CN201920935405.2U CN201920935405U CN210600205U CN 210600205 U CN210600205 U CN 210600205U CN 201920935405 U CN201920935405 U CN 201920935405U CN 210600205 U CN210600205 U CN 210600205U
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- butterfly valve
- heat supply
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- valve body
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Abstract
The utility model discloses a damping butterfly valve, in particular to the butterfly valve field, comprising a heat supply butterfly valve body, wherein a heat supply butterfly valve rod is arranged inside the heat supply butterfly valve body, a heat supply butterfly valve plate is arranged on the heat supply butterfly valve rod, and a damping through-flow mechanism is arranged on the heat supply butterfly valve plate; the shock attenuation through-flow mechanism includes a plurality of through-flow holes, through-flow hole one end intercommunication is equipped with the horn hole, the opening angle in horn hole sets up to 90 degrees, be equipped with a plurality of intercommunication grooves on the heat supply butterfly valve plate. The utility model discloses a set up shock attenuation through-flow mechanism, heat supply butterfly valve body aperture is less, and steam passes through from through-flow hole, bell-mouth hole, intercommunication groove and the supplementary through-flow hole on the heat supply butterfly valve plate, reduces the vortex of production when guaranteeing minimum flow to the sealing washer that has the through-hole can play fine shock absorption, wholly makes the utility model discloses a shock attenuation effect is better, can effectively guarantee heat supply pipeline's safety and unit efficiency.
Description
Technical Field
The utility model relates to a butterfly valve technical field, more specifically say, the utility model relates to a shock attenuation butterfly valve.
Background
A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk.
The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.
The butterfly valve is a valve which uses a disc type opening and closing piece to rotate back and forth by about 90 degrees to open, close or adjust the medium flow. The butterfly valve has the advantages of simple structure, small volume, light weight, less material consumption, small installation size, small driving moment, simple and convenient operation and rapidness, and simultaneously has good flow regulation function and sealing closing characteristic, thereby being one of the fastest valve varieties developed in the last ten years. Butterfly valves are widely used. The variety and the number of the used valve are still continuously expanded, and the valve is developed towards high temperature, high pressure, large caliber, high sealing property, long service life, excellent regulation characteristic and one-valve multifunction, and the reliability and other performance indexes of the valve reach higher levels.
The heat supply butterfly valve is used for the well low pressure cylinder closed tube of power plant cogeneration unit steam turbine, and the heat supply butterfly valve minimum flow leans on the gap between butterfly plate and the valve body to guarantee, and like this under the low-load heat supply operating mode of power plant, the valve is in little aperture, and steam produces the vortex in the pipeline this moment, is that whole pipeline produces serious vibration, influences heat supply pipeline safety and unit efficiency.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a shock-absorbing butterfly valve, steam passes through the through-flow holes, the horn holes, the communicating grooves and the auxiliary through-flow holes in the heat supply butterfly valve plate in the heat supply butterfly valve body, the opening angle of the horn holes is 90 degrees, the smooth passing of the steam can be ensured, the adverse effect on the passing rate of the steam is avoided, the minimum flow of the steam is ensured by the through-flow holes, the horn holes, the communicating grooves and the auxiliary through-flow holes, when the low-pressure communicating pipe vibrates, the low-pressure communicating pipe transmits the vibration to the short pipe, the short pipe transmits the vibration to the second connecting flange, the sealing ring between the second connecting flange and the heat supply butterfly valve body is made of rubber, a through hole is formed in the main body of the sealing ring, and the sealing ring can play a good vibration absorption role due to the through hole and the sealing ring made of graphite and stainless steel strip materials.
In order to achieve the above object, the utility model provides a following technical scheme: a damping butterfly valve comprises a heat supply butterfly valve body, wherein a heat supply butterfly valve rod is arranged inside the heat supply butterfly valve body, a heat supply butterfly valve plate is arranged on the heat supply butterfly valve rod, and a damping through-flow mechanism is arranged on the heat supply butterfly valve plate;
the damping through-flow mechanism comprises a plurality of through-flow holes, one ends of the through-flow holes are communicated and provided with horn holes, the opening angle of each horn hole is set to be 90 degrees, a plurality of communication grooves are formed in the heat supply butterfly valve plate, a valve rod fixing groove is formed in the heat supply butterfly valve plate, a valve rod fixing plate is fixedly arranged on the inner wall of the valve rod fixing groove, and a plurality of auxiliary through-flow holes are formed in the side surface of the heat supply butterfly valve plate;
a shunting mechanism is arranged on one side of the heat supply butterfly valve body;
the shunt mechanism comprises a bypass pipe and an electric bypass valve, the electric bypass valve comprises an electric valve body and an electric valve rod, and a first connecting flange is arranged between the electric bypass valve and the bypass pipe;
the sealing device is characterized in that short pipes are arranged at two ends of the heat supply butterfly valve body, second connecting flanges are arranged at two ends of each short pipe, a sealing ring placing groove is formed between each second connecting flange and the heat supply butterfly valve body, a sealing ring is arranged inside each sealing ring placing groove, each sealing ring comprises a main body, a through hole is formed in the main body in a vertical penetrating mode, a fixing rod is arranged inside each through hole, sealing gaskets are arranged at two ends of each fixing rod, and each sealing ring is made of graphite and stainless steel strip materials.
In a preferred embodiment, one end of the bypass pipe is communicated with the input end of the heat supply butterfly valve body, and the other end of the bypass pipe is communicated with the output end of the heat supply butterfly valve body.
In a preferred embodiment, the electric bypass valve is fastened to the bypass line via a first connecting flange.
In a preferred embodiment, the valve stem retaining plate is made of a rubber material.
In a preferred embodiment, the cross-sectional shape of the auxiliary through-flow opening is provided as a sector.
In a preferred embodiment, the sealing ring receiving groove is adapted to the sealing ring.
In a preferred embodiment, the second connecting flange is provided with fixing bolts, and fixing screw holes penetrate through the second connecting flange.
In a preferred embodiment, the fixing bolt is matched with the fixing screw hole.
The utility model discloses a technological effect and advantage:
1. when the opening of the heat supply butterfly valve body is small, steam passes through the through-flow hole, the horn hole, the communicating groove and the auxiliary through-flow hole in the heat supply butterfly valve plate in the heat supply butterfly valve body, the opening angle of the horn hole is 90 degrees, smooth passing of the steam can be guaranteed, adverse effects on the passing rate of the steam cannot be caused, the through-flow hole, the horn hole, the communicating groove and the auxiliary through-flow hole guarantee the minimum flow of the steam, when the low-pressure communicating pipe generates vibration, the low-pressure communicating pipe transmits the vibration to the short pipe, the short pipe transmits the vibration to the second connecting flange, a sealing ring between the second connecting flange and the heat supply butterfly valve body is made of graphite and a stainless steel strip, a through hole is formed in the main body of the sealing ring, the sealing ring can play a good vibration absorption role by the through hole and the sealing ring made of the graphite and the stainless steel strip, the sealing effect of the sealing ring is ensured, the opening degree of the valve body of the heat supply butterfly valve is smaller by arranging the damping through-flow mechanism and the shunting mechanism, steam passes through the through-flow hole, the horn hole, the communicating groove and the auxiliary through-flow hole on the valve plate of the heat supply butterfly valve, the generated vortex is reduced while the minimum flow is ensured, and the sealing ring with the through hole can play a good shock absorption role, so that the damping effect of the utility model is better as a whole, and the safety of a heat supply pipeline and the unit efficiency can be effectively ensured;
2. the unit is in the operation of heat supply state, when adjusting through heat supply butterfly valve body aperture within range and effectively adjusting the steam extraction volume, and under the condition that low pressure communicating pipe amplitude scope can be accepted, the electronic bypass valve on the bypass pipe keeps opening operating condition entirely, can share the effect to heat supply butterfly valve body, effectively reduces the life and the increase work efficiency of amplitude and extension heat supply butterfly valve body.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged view of a structure in fig. 1.
Fig. 3 is an enlarged view of the structure at B in fig. 1 according to the present invention.
Fig. 4 is a top view of the heat supply butterfly valve plate of the present invention.
Fig. 5 is a cross-sectional side view of a flow aperture of the present invention.
Fig. 6 is a cross-sectional side view of the sealing ring of the present invention.
Fig. 7 is a perspective view of the sealing ring of the present invention.
The reference signs are: 1 heat supply butterfly valve body, 2 heat supply butterfly valve rod, 3 heat supply butterfly valve plate, 4 shock attenuation through-flow mechanisms, 5 through-flow holes, 6 horn holes, 7 intercommunication grooves, 8 valve rod fixed slots, 9 valve rod fixed plates, 10 supplementary through-flow holes, 11 reposition of redundant personnel mechanisms, 12 bypass pipes, 13 electronic bypass valves, 14 electronic valve body, 15 electronic valve rod, 16 first flange, 17 nozzle stub, 18 second flange, 19 sealing washer standing grooves, 20 sealing washers, 21 main parts, 22 through-holes, 23 dead lever, 24 sealed pads, 25 fixing bolt, 26 fixed screw hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The damping butterfly valve shown in the figures 1-7 comprises a heat supply butterfly valve body 1, wherein a heat supply butterfly valve rod 2 is arranged inside the heat supply butterfly valve body 1, a heat supply butterfly valve plate 3 is arranged on the heat supply butterfly valve rod 2, and a damping through-flow mechanism 4 is arranged on the heat supply butterfly valve plate 3;
the damping through-flow mechanism 4 comprises a plurality of through-flow holes 5, one ends of the through-flow holes 5 are communicated with horn holes 6, the opening angle of the horn holes 6 is set to be 90 degrees, a plurality of communication grooves 7 are formed in the heat supply butterfly valve plate 3, a valve rod fixing groove 8 is formed in the heat supply butterfly valve plate 3, a valve rod fixing plate 9 is fixedly arranged on the inner wall of the valve rod fixing groove 8, and a plurality of auxiliary through-flow holes 10 are formed in the side surface of the heat supply butterfly valve plate 3;
a shunting mechanism 11 is arranged on one side of the heat supply butterfly valve body 1;
the flow dividing mechanism 11 comprises a bypass pipe 12 and an electric bypass valve 13, the electric bypass valve 13 comprises an electric valve body 14 and an electric valve rod 15, and a first connecting flange 16 is arranged between the electric bypass valve 13 and the bypass pipe 12;
one end of the bypass pipe 12 is communicated with the input end of the heat supply butterfly valve body 1, and the other end of the bypass pipe 12 is communicated with the output end of the heat supply butterfly valve body 1;
the electric bypass valve 13 is fixed on the bypass pipe 12 through a first connecting flange 16;
the valve rod fixing plate 9 is made of rubber material;
the cross-sectional shape of the auxiliary through-flow hole 10 is set to be fan-shaped;
the sealing ring placing groove 19 is matched with the sealing ring 20;
the second connecting flange 18 is provided with a fixing bolt 25, and a fixing screw hole 26 penetrates through the second connecting flange 18;
the fixing bolt 25 is matched with the fixing screw hole 26.
The implementation mode is specifically as follows: when the utility model is used, the two ends of the heat supply butterfly valve body 1 are connected with the short pipe 17, the two ends of the short pipe 17 are provided with the second connecting flange 18, a sealing ring placing groove 19 is left between the second connecting flange 18 and the heat supply butterfly valve body 1, a sealing ring 20 which is matched with the sealing ring placing groove 19 and is made of graphite and stainless steel band is placed into the sealing ring placing groove 19, then a fixing bolt 25 is screwed into a fixing screw hole 26, thereby the short pipe 17 and the heat supply butterfly valve body 1 are fixed together, then the electric valve body 14 of the electric bypass valve 13 is fixed on the bypass pipe 12 by the first connecting flange 16, one end of the bypass pipe 12 is communicated with the input end of the heat supply butterfly valve body 1, the other end of the bypass pipe 12 is communicated with the output end of the heat supply butterfly valve body 1, so that the bypass pipe 12 can play a shunting role for the heat supply butterfly valve body 1, so that the heat supply butterfly valve body 1 can normally work, when the heat supply butterfly valve body 1 works normally, the ventilation volume can be effectively adjusted within the range of 25% -100% of the opening degree, and a small part of steam passing through the low-pressure communicating pipe enters the bypass pipe 12, the bypass pipe 12 can reduce the working load of the heat supply butterfly valve body 1 and prolong the service life of the heat supply butterfly valve body, when the opening degree of the heat supply butterfly valve body 1 is small, the steam passes through the through hole 5, the horn hole 6, the communicating groove 7 and the auxiliary through hole 10 on the heat supply butterfly valve plate 3 in the heat supply butterfly valve body 1, the opening angle of the horn hole 6 is 90 degrees, the smooth passing of the steam can be ensured, the adverse effect on the passing rate of the steam is avoided, the minimum flow of the steam is ensured by the through hole 5, the horn hole 6, the communicating groove 7 and the auxiliary through hole 10, and when the low-pressure communicating pipe generates vibration, the short pipe 17 transmits the vibration to the second connecting flange 18, the sealing ring 20 between the second connecting flange 18 and the heat supply butterfly valve body 1 is made of graphite and stainless steel strips, a through hole 22 is arranged in a main body 21 of the sealing ring 20, the through hole 22 and the sealing ring 20 made of graphite and stainless steel strips can enable the sealing ring 20 to play a good role in absorbing the vibration, a fixing rod 23 is arranged in the through hole 22, two sealing gaskets 24 cover the through hole 22 through the fixing rod 23, the sealing effect of the sealing ring 20 is ensured, the unit operates in a heat supply state, when the steam extraction amount can be effectively adjusted by adjusting the opening range of the heat supply butterfly valve body 1, and the amplitude range of the low-pressure communicating pipe can be accepted, the electric bypass valve 13 on the bypass pipe 12 is kept in a fully-open working state, so that the heat supply butterfly valve body 1 can be shared, the amplitude is effectively reduced, the service life of the heat supply butterfly valve body 1 is prolonged, and the working efficiency is increased; when can not effectively adjust the steam extraction through 1 aperture range regulation of heat supply butterfly valve body, or under the unacceptable condition of low pressure communicating pipe amplitude scope, then let heat supply butterfly valve body 1 tend to zero aperture state, and reduce the regulation to the aperture of the electronic bypass valve on the bypass pipe 12, until satisfying the requirement of steam extraction, through setting up shock attenuation through-flow mechanism 4 and reposition of redundant personnel mechanism 11, 1 aperture of heat supply butterfly valve body is less, steam is from through-flow hole 5 on heat supply butterfly valve plate 3, bellmouth orifice 6, intercommunication groove 7 and supplementary through-flow hole 10 pass through, reduce the vortex of production when guaranteeing minimum flow, and the sealing washer 20 that has through-hole 22 can play fine shock-absorbing effect, wholly make the utility model discloses a shock attenuation effect is better, can effectively guarantee heat supply pipeline's safety and unit efficiency.
The utility model discloses the theory of operation:
referring to the attached drawings 1-7 of the specification, when the opening degree of the heat supply butterfly valve body 1 is small, steam passes through the through-flow hole 5, the horn-shaped hole 6, the communicating groove 7 and the auxiliary through-flow hole 10 on the heat supply butterfly valve plate 3 in the heat supply butterfly valve body 1, the opening angle of the horn-shaped hole 6 is 90 degrees, smooth passing of the steam can be guaranteed, adverse effects on the passing speed of the steam cannot be caused, the through-flow hole 5, the horn-shaped hole 6, the communicating groove 7 and the auxiliary through-flow hole 10 guarantee the minimum flow of the steam, when the low-pressure communicating pipe generates vibration, the low-pressure communicating pipe transmits the vibration to the short pipe 17, the short pipe 17 transmits the vibration to the second connecting flange 18, the sealing ring 20 between the second connecting flange 18 and the heat supply butterfly valve body 1 is made of graphite and stainless steel strips, a through hole 22 is arranged in a main body 21 of the sealing ring 20, the through hole 22 and the sealing, the fixing rod 23 is arranged in the through hole 22, the two sealing gaskets 24 cover the through hole 22 through the fixing rod 23, the sealing effect of the sealing ring 20 is ensured, the opening degree of the heat supply butterfly valve body 1 is smaller through arranging the damping through-flow mechanism 4 and the shunting mechanism 11, steam passes through the through-flow hole 5, the horn hole 6, the communication groove 7 and the auxiliary through-flow hole 10 on the heat supply butterfly valve plate 3, the generated vortex is reduced while the minimum flow is ensured, and the sealing ring 20 with the through hole 22 can play a good shock absorption role, so that the utility model has a better damping effect and can effectively ensure the safety of a heat supply pipeline and the unit efficiency;
referring to the attached figure 1 of the specification, when the unit runs in a heat supply state, the steam extraction amount can be effectively adjusted by adjusting the opening range of the heat supply butterfly valve body 1, and the amplitude range of the low-pressure communicating pipe can be accepted, the electric bypass valve 13 on the bypass pipe 12 is kept in a fully-open working state, the heat supply butterfly valve body 1 can be shared, the amplitude is effectively reduced, the service life of the heat supply butterfly valve body 1 is prolonged, and the working efficiency is improved.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a shock attenuation butterfly valve, includes heat supply butterfly valve body (1), its characterized in that: a heat supply butterfly valve rod (2) is arranged inside the heat supply butterfly valve body (1), a heat supply butterfly valve plate (3) is arranged on the heat supply butterfly valve rod (2), and a damping through-flow mechanism (4) is arranged on the heat supply butterfly valve plate (3);
the damping through-flow mechanism (4) comprises a plurality of through-flow holes (5), one ends of the through-flow holes (5) are communicated and provided with horn holes (6), the opening angle of each horn hole (6) is set to be 90 degrees, a plurality of communication grooves (7) are formed in the heat supply butterfly valve plate (3), a valve rod fixing groove (8) is formed in the heat supply butterfly valve plate (3), a valve rod fixing plate (9) is fixedly arranged on the inner wall of the valve rod fixing groove (8), and a plurality of auxiliary through-flow holes (10) are formed in the side surface of the heat supply butterfly valve plate (3);
a shunting mechanism (11) is arranged on one side of the heat supply butterfly valve body (1);
the flow dividing mechanism (11) comprises a bypass pipe (12) and an electric bypass valve (13), the electric bypass valve (13) comprises an electric valve body (14) and an electric valve rod (15), and a first connecting flange (16) is arranged between the electric bypass valve (13) and the bypass pipe (12);
heating butterfly valve body (1) both ends all are equipped with nozzle stub (17), nozzle stub (17) both ends all are equipped with second flange (18), be equipped with sealing washer standing groove (19) between second flange (18) and heating butterfly valve body (1), inside sealing washer (20) that are equipped with of sealing washer standing groove (19), sealing washer (20) are including main part (21), the inside vertical through-hole (22) that is equipped with of main part (21), the inside dead lever (23) that is equipped with of through-hole (22), dead lever (23) both ends all are equipped with sealed pad (24), sealing washer (20) are made by graphite and stainless steel strip material.
2. The shock absorbing butterfly valve of claim 1, wherein: one end of the bypass pipe (12) is communicated with the input end of the heat supply butterfly valve body (1), and the other end of the bypass pipe (12) is communicated with the output end of the heat supply butterfly valve body (1).
3. The shock absorbing butterfly valve of claim 1, wherein: the electric bypass valve (13) is fixed on the bypass pipe (12) through a first connecting flange (16).
4. The shock absorbing butterfly valve of claim 1, wherein: the valve rod fixing plate (9) is made of rubber materials.
5. The shock absorbing butterfly valve of claim 1, wherein: the cross-sectional shape of the auxiliary through-flow hole (10) is arranged to be fan-shaped.
6. The shock absorbing butterfly valve of claim 1, wherein: the sealing ring placing groove (19) is matched with the sealing ring (20).
7. The shock absorbing butterfly valve of claim 1, wherein: and the second connecting flange (18) is provided with a fixing bolt (25), and a fixing screw hole (26) penetrates through the inside of the second connecting flange (18).
8. The shock absorbing butterfly valve of claim 7, wherein: the fixing bolt (25) is matched with the fixing screw hole (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920935405.2U CN210600205U (en) | 2019-06-20 | 2019-06-20 | Shock attenuation butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920935405.2U CN210600205U (en) | 2019-06-20 | 2019-06-20 | Shock attenuation butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210600205U true CN210600205U (en) | 2020-05-22 |
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ID=70715289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920935405.2U Active CN210600205U (en) | 2019-06-20 | 2019-06-20 | Shock attenuation butterfly valve |
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| Country | Link |
|---|---|
| CN (1) | CN210600205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230704A (en) * | 2019-06-20 | 2019-09-13 | 武汉百耐流体控制设备有限公司 | A kind of damping butterfly valve |
-
2019
- 2019-06-20 CN CN201920935405.2U patent/CN210600205U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230704A (en) * | 2019-06-20 | 2019-09-13 | 武汉百耐流体控制设备有限公司 | A kind of damping butterfly valve |
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