CN117189886A - Three-eccentric bidirectional sealing butterfly valve - Google Patents
Three-eccentric bidirectional sealing butterfly valve Download PDFInfo
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- CN117189886A CN117189886A CN202311467068.6A CN202311467068A CN117189886A CN 117189886 A CN117189886 A CN 117189886A CN 202311467068 A CN202311467068 A CN 202311467068A CN 117189886 A CN117189886 A CN 117189886A
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- 238000007789 sealing Methods 0.000 title claims abstract description 73
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims description 62
- 239000012530 fluid Substances 0.000 claims description 32
- 239000012535 impurity Substances 0.000 claims description 28
- 238000004140 cleaning Methods 0.000 claims description 10
- 230000003028 elevating effect Effects 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 15
- 238000005299 abrasion Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to the technical field of valves, in particular to a three-eccentric bidirectional sealing butterfly valve, which comprises an outer valve body, an inner valve body, a driving device and a valve clack, wherein the inner valve body is arranged in the outer valve body, the valve clack is arranged in the inner valve body, and the driving device is arranged in the outer valve body.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a three-eccentric bidirectional sealing butterfly valve.
Background
The valve body is of a three-eccentric structure, and the valve disc and the valve rod are in eccentric positions, so that the valve disc can be rapidly separated from a sealing surface in the opening and closing processes, friction and abrasion are reduced, and the valve body is widely applied to the fields of air supply, water supply, gas, oil products, exhaust braking of engines of large trucks and the like.
Because the engine of the large truck can generate high temperature when the engine is braked by exhaust, the current three-eccentric bidirectional sealing butterfly valve is frequently maintained due to aging and abrasion in the use process, so that the service life is difficult to meet the requirements of users; in addition, in the working process of the existing three-eccentric bidirectional sealing butterfly valve, if the valve clack is subjected to larger acting force, the valve clack is easy to deviate, so that the probability of fluid leakage is greatly increased, meanwhile, a group of buffer measures are not usually provided between the driving device of the existing three-eccentric bidirectional sealing butterfly valve and the valve clack, and when the valve clack is deviated due to the acting force of the fluid, the driving device is in a working state all the time, so that overload phenomenon is easy to occur to the driving device, and further the follow-up working is influenced; finally, in the process of cleaning the tri-eccentric bi-directional sealing butterfly valve, workers often need to disassemble the tri-eccentric bi-directional sealing butterfly valve into various parts, so that the working efficiency is often unsatisfactory.
Disclosure of Invention
The invention aims to provide a three-eccentric bidirectional sealing butterfly valve, which solves the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a three eccentric bi-directional seal butterfly valve, the butterfly valve includes outer valve body, interior valve body, drive arrangement and valve clack, interior valve body sets up the inside at outer valve body, the valve clack sets up the inside at outer valve body, through the inside rotation of valve body including drive arrangement drive valve clack, through the inside flow of valve body including the valve clack control fluid, the inside of interior valve body still is provided with the seal frame, the inner wall of seal frame cooperatees with the outer wall of valve clack, the seal frame is high temperature resistant corrosion resistance material, avoids seal frame fluid temperature too high or carries corrosive substance in the fluid to the seal frame takes place wearing and tearing after long-time work, and then prevents to have the clearance between the outer wall of valve clack and the inner wall of seal frame in the course of the work, leads to fluid leakage.
Further, the outside of outer valve body still is provided with first air pump and second air pump, the inside of seal frame is provided with positioning mechanism, the inside of interior valve body still is provided with edulcoration mechanism, first air pump is connected with positioning mechanism, through first air pump drive positioning mechanism work, through positioning mechanism prevents that the valve clack from deviating because of fluid pressure is too big when sealing state, the second air pump is connected with edulcoration mechanism, through second air pump drive edulcoration mechanism work, through the inner wall of edulcoration mechanism clearance seal frame to after this avoids the work to end, and then causes the seal frame to be corroded or there is impurity in the middle of the outer wall of valve clack and seal frame cooperation in the next working process, so that can't seal completely.
Further, the outer end of the valve clack is provided with a positioning groove, the positioning mechanism comprises a positioning rack and a containing groove, the positioning groove is matched with the positioning rack, the positioning rack is arranged in the containing groove, the positioning rack is connected with the containing groove through a reset spring rod, when the valve clack is not in operation, the positioning rack is positioned in the containing groove and does not extend into the positioning groove, the side end of the inner valve body is provided with an air guide groove, the air outlet end of the first air pump is communicated with the air guide groove, one end of the containing groove, which is close to the air guide groove, is provided with a through hole, one end of the containing groove, which is close to the valve clack, is provided with a telescopic channel, the air guide groove is communicated with the containing groove through the through hole, and when the valve clack is in operation, the valve clack is driven by the driving device, the telescopic channel is aligned with the positioning groove at the moment, in order to avoid the overlarge fluid pressure, the valve clack is exhausted in the air guide groove through the first air pump, the discharged air can enter the containing groove along the through hole, the air pump automatically moves into the positioning groove, and is in contact with the sealing groove through the positioning groove, and the sealing groove is normally, on the other hand, and the valve clack can be sealed by the sealing groove is realized.
Furthermore, the locating rack is provided with the first piezoelectric plate, when the locating rack works, the first piezoelectric plate is connected with an external current detection system, gaps are reserved between the locating groove and the telescopic channel and the locating rack, and through the technical scheme, if gaps occur between the outer wall of the valve clack and the inner wall of the sealing rack due to aging or abrasion in the process of blocking fluid, a part of blocked fluid leaks into the containing groove along the gaps between the locating groove and the telescopic channel and the locating rack, the first piezoelectric plate can receive acting force generated by a group of fluid along with the increase of the leaked fluid, and at the moment, the first piezoelectric plate can generate a group of electric signals, so that whether the work of the locating rack is abnormal can be timely judged through the external current detection system.
Further, edulcoration mechanism includes the annular cover, the inside of annular cover is provided with clean frame and first electro-magnet, the one end that clean frame is close to first electro-magnet has magnetism, the outer wall of clean frame cooperatees with the inner wall of sealed frame, the one end that interior valve body is close to edulcoration mechanism is provided with elevating system, and in the course of the work, the annular cover is kept away from sealed frame, avoids the valve clack to bump with annular cover in rotatory in-process, after the work, through elevating system drive edulcoration mechanism removes, and when annular cover was close to sealed frame, stop removing, then intermittent type opens first electro-magnet, through first electro-magnet drive annular cover removal, the outer wall of annular cover is provided with clean cotton, clears up the inner wall of sealed frame through clean cotton.
Further, the lifting mechanism comprises a linear motor, the impurity removing mechanism is driven to move through the linear motor, and compared with the cylinder which is driven to move, the linear motor which is driven to move has the advantages of high efficiency, high speed, high positioning precision and the like.
Further, the side of valve clack is provided with the reversing shaft, the one end that reversing shaft is close to drive arrangement is provided with the connecting seat, drive arrangement's inside is provided with the drive shaft, the one end that the drive shaft is close to the valve clack is provided with the linkage groove and stretches into in the connecting seat, the inside of connecting seat is provided with the flexible groove, the inside of flexible groove is provided with linkage piece and second electro-magnet, be connected through fixed spring between linkage piece and the second electro-magnet, the one end that the linkage piece is close to the second electro-magnet has magnetism, during operation, through the magnetic field and the fixed spring that the second electro-magnet produced make the linkage piece insert in the linkage groove, the connecting seat is connected with the drive shaft through the linkage piece, when work is accomplished and is needed to maintain the quality inspection, through the second electro-magnet produces a set of attraction linkage piece magnetic field for the linkage piece shrink is advanced in the flexible groove, so that the follow-up dismantlement of convenience, the outside of linkage piece is provided with sensing assembly, through sensing assembly detects whether has taken place to deflect, plays the buffering simultaneously, avoids the valve clack's fluid pressure of receiving too big so that drive arrangement takes place.
Further, the response subassembly includes the gasbag, the gasbag sets up in the outside of linkage piece, be provided with compressed gas and second piezoelectric plate in the gasbag, the second piezoelectric plate is connected with external current detecting system, when the fluid pressure that the valve clack received is too big, the valve clack can take place to rotate to make the gasbag warp, the inside atmospheric pressure of gasbag can be along with the increase this moment, the effort that the valve clack received can be judged through the signal of telecommunication change that external current detecting system monitoring second piezoelectric plate produced, and then make things convenient for the staff to stop work in time, avoid drive arrangement to take place overload damage.
Further, elevating system includes movable tank and link frame, be provided with the piston in the movable tank, the one end winding of link frame has the spring and with piston fastening connection, the other end and the edulcoration mechanism fastening connection of link frame, the one end that the valve clack was kept away from to the second air pump is connected with the movable tank, the one end that the movable tank is close to the valve clack is provided with the exhaust hole, after the work is over, through the second air pump to the movable inslot exhaust, at this moment under the effect of atmospheric pressure, the piston can be moved to the direction that is close to the seal frame, because between edulcoration mechanism and the piston be connected through the link frame, consequently, the edulcoration mechanism can synchronous movement when the piston moves to the position that is close to the exhaust hole, the second air pump stops working when the piston is to the position that is close to the exhaust hole through the edulcoration mechanism, the time clear up the inner wall of seal frame, after the clearance work is finished, the piston can cross the exhaust hole, the gas in the movable tank can be spouted from the exhaust hole in, the inner wall face of internal valve body is cleared up, compare cylinder and linear motor, the elevating system has dual function, the internal wall that removes the edulcoration mechanism to the internal temperature of internal valve body, the inside the valve body can not influence the power factor, the elevating system is avoided, the high temperature factor is realized, the elevating system is realized, and the inside the elevating system is avoided.
Compared with the prior art, the invention has the following beneficial effects: compared with the existing three-eccentric bidirectional sealing butterfly valve provided with a positioning mechanism and a impurity removing mechanism, when the driving device drives the outer wall of the valve clack to be in contact with the inner wall of the sealing frame, the telescopic channel is aligned with the positioning groove, and the positioning mechanism is driven by the first air pump to work, the positioning frame automatically stretches into the positioning groove, and the positioning groove is matched with the positioning frame, so that the valve clack can be prevented from being offset, and the purpose of double sealing can be achieved, namely, the contact surface of the outer wall of the valve clack and the inner wall of the sealing frame is first resealed, the contact surface of the positioning frame and the positioning groove is second resealed, the invention can still work normally under high-pressure environment, in addition, the positioning frame is provided with the first piezoelectric plate, gaps are reserved between the positioning groove and the telescopic channel and the positioning frame, in the process of blocking fluid, if a gap appears between the outer wall of the valve clack and the inner wall of the sealing frame due to aging or abrasion, a part of blocked fluid leaks to the storage groove along the gap between the positioning groove and the telescopic channel as well as between the positioning frame, along with the increase of the leaked fluid, the first piezoelectric plate can receive a group of acting force generated by the fluid, the working of a valve body can be conveniently and timely judged by workers through monitoring the electric signal change generated by the first piezoelectric plate, after the working is finished, the second air pump and the lifting mechanism drive the impurity removing mechanism to work, the inner wall of the sealing frame is cleaned through the impurity removing mechanism, so that the impurities are accumulated on the inner wall of the sealing frame after the working is finished, and then the sealing frame is corroded or impurities exist in the middle of the outer wall of the valve clack and the sealing frame in the next working process, so that the sealing cannot be completely sealed, finally, the invention also provides an induction component in the connecting seat, and the induction component is used for detecting whether the valve clack deflects or not on one hand and playing a role in buffering on the other hand, so that the overload damage of the driving device caused by the overlarge fluid pressure to the valve clack is avoided.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the outer valve body of the present invention;
FIG. 3 is a schematic view of the structure of portion A in FIG. 2 according to the present invention;
FIG. 4 is a schematic view of the seal carrier structure of the present invention;
FIG. 5 is a schematic view of the structure of the valve flap of the present invention;
FIG. 6 is a schematic view of the structure of section C-C of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic view of the structure of portion B of FIG. 2 in accordance with the present invention;
FIG. 8 is a schematic illustration of the attachment of the driving means of the present invention to a valve flap;
FIG. 9 is a schematic view of the internal structure of the connector of the present invention;
fig. 10 is a schematic view of the D-D structure of fig. 9 in accordance with the present invention.
In the figure: the device comprises a 1-outer valve body, a 2-inner valve body, a 21-movable groove, a 211-piston, a 22-linkage frame, a 23-annular sleeve, a 231-cleaning frame, a 232-first electromagnet, a 24-clamping block, a 25-sealing frame, a 251-positioning frame, a 2511-first piezoelectric plate, a 252-containing groove, a 3-driving device, a 31-driving shaft, a 4-first air pump, a 41-second air pump, a 5-valve clack, a 51-positioning groove, a 52-connecting seat, a 521-linkage block, a 522-second electromagnet, a 523-telescopic groove, a 524-air bag, a 525-second piezoelectric plate and a 53-reversing shaft.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-5, a three-eccentric bidirectional sealing butterfly valve comprises an outer valve body 1, an inner valve body 2, a driving device 3 and a valve clack 5, wherein the inner valve body 2 is arranged in the outer valve body 1, the valve clack 5 is arranged in the inner valve body 2, the driving device 3 is arranged in the outer valve body 1, the driving device 3 drives the valve clack 5 to rotate in the inner valve body 2, fluid is controlled to flow in the inner valve body 2 through the valve clack 5, a sealing frame 25 is further arranged in the inner valve body 2, the sealing frame 25 is fastened in the inner valve body 2 through bolts and clamping blocks 24, the inner wall of the sealing frame 25 is matched with the outer wall of the valve clack 5, the sealing frame 25 is made of high-temperature-resistant and corrosion-resistant materials, the sealing frame 25 is prevented from being worn after long-time working, and gaps exist between the outer wall of the sealing frame 5 and the inner wall of the sealing frame 25, so that fluid leakage is prevented.
As shown in fig. 1-3 and 7, the outer part of the outer valve body 1 is further provided with a first air pump 4 and a second air pump 41, the inside of the sealing frame 25 is provided with a positioning mechanism, the inside of the inner valve body 2 is further provided with a impurity removing mechanism, the first air pump 4 is connected with the positioning mechanism, the positioning mechanism is driven to work through the first air pump 4, the valve clack 5 is prevented from being offset due to overlarge fluid pressure in a sealing state through the positioning mechanism, the second air pump 41 is connected with the impurity removing mechanism, the impurity removing mechanism is driven to work through the second air pump 41, the inner wall of the sealing frame 25 is cleaned through the impurity removing mechanism, so that after the work is finished, impurities are accumulated on the inner wall of the sealing frame 25, and then the sealing frame 25 is corroded or impurities exist in the middle of the outer wall of the valve clack 5 in the next working process when the valve clack 5 is matched with the sealing frame 25, so that the sealing cannot be completely sealed.
As shown in fig. 1-6, the outer end of the valve clack 5 is provided with a positioning groove 51, the positioning mechanism comprises a positioning frame 251 and a containing groove 252, the positioning groove 51 is matched with the positioning frame 251, the positioning frame 251 is arranged in the containing groove 252, the positioning frame 251 is connected with the containing groove 252 through a reset spring rod, when the valve clack is not in operation, the positioning frame 251 is positioned in the containing groove 252 and does not extend into the positioning groove 51, the side end of the inner valve body 2 is provided with an air guide groove, the air outlet end of the first air pump 4 is communicated with the air guide groove, one end of the containing groove 252 close to the air guide groove is provided with a through hole, one end of the containing groove 252 close to the valve clack 5 is provided with a telescopic channel, the air guide groove is communicated with the containing groove 252 through the through hole, when the valve clack is in operation, the driving device 3 can drive the outer wall of the valve clack 5 to be contacted with the inner wall of the sealing frame 25, in order to avoid the deviation of the valve clack 5 caused by overlarge fluid pressure, the invention is provided with the locating rack 251, the first air pump 4 is used for exhausting air into the air guide groove, the air exhausted by the first air pump 4 can enter the containing groove 252 along the through hole, the locating rack 251 can automatically extend into the locating groove 51 under the action of air pressure, the valve clack 5 can be prevented from deviation by the cooperation of the locating groove 51 and the locating rack 251, and the purpose of double sealing can be achieved on the one hand, namely, the contact surface of the outer wall of the valve clack 5 and the inner wall of the sealing rack 25 is first resealing, and the contact surface of the locating rack 251 and the locating groove 51 is second resealing.
As shown in fig. 1-6, in the process of blocking fluid, if a gap appears between the outer wall of the valve clack 5 and the inner wall of the sealing frame 25 due to aging or abrasion, a part of blocked fluid leaks into the containing groove 252 along the gap between the positioning groove 51 and the telescopic channel and the positioning frame 251, and as the leaked fluid increases, the first piezoelectric sheet 2511 receives a group of acting force generated by the fluid, and at this time, the first piezoelectric sheet 2511 generates a group of electric signals, and the external current detection system can timely judge whether the operation of the invention is abnormal.
As shown in fig. 1-3 and 7, the impurity removing mechanism comprises an annular sleeve 23, a cleaning frame 231 and a first electromagnet 232 are arranged in the annular sleeve 23, one end, close to the first electromagnet 232, of the cleaning frame 231 is magnetic, the outer wall of the cleaning frame 231 is matched with the inner wall of the sealing frame 25, one end, close to the impurity removing mechanism, of the inner valve body 2 is provided with a lifting mechanism, in the working process, the annular sleeve 23 is far away from the sealing frame 25, the valve clack 5 is prevented from colliding with the annular sleeve 23 in the rotating process, after the working is finished, the impurity removing mechanism is driven to move through the lifting mechanism, when the annular sleeve 23 is close to the sealing frame 25, the movement is stopped, then the first electromagnet 232 is intermittently started, the annular sleeve 23 is driven to move through the first electromagnet 232, cleaning cotton is arranged on the outer wall of the annular sleeve 23, and the inner wall of the sealing frame 25 is cleaned through the cleaning cotton.
As shown in fig. 1-3 and 7, the lifting mechanism comprises a linear motor, the impurity removing mechanism is driven to move through the linear motor, and compared with the cylinder which is driven to move, the linear motor which is driven to move has the advantages of high efficiency, high speed, high positioning precision and the like.
As shown in fig. 1 and fig. 8-10, a reversing shaft 53 is disposed at a side end of the valve clack 5, a connecting seat 52 is disposed at an end of the reversing shaft 53 close to the driving device 3, a driving shaft 31 is disposed in the driving device 3, a linkage groove is disposed at an end of the driving shaft 31 close to the valve clack 5 and extends into the connecting seat 52, a telescopic groove 523 is disposed in the connecting seat 52, a linkage block 521 and a second electromagnet 522 are disposed in the telescopic groove 523, the linkage block 521 and the second electromagnet 522 are connected through a fixed spring, a magnetic property is disposed at an end of the linkage block 521 close to the second electromagnet 522, in operation, the linkage block 521 is inserted into the linkage groove through a magnetic field generated by the second electromagnet 522 and the fixed spring, the connecting seat 52 is connected with the driving shaft 31 through the linkage block 521, and when maintenance quality inspection is finished, a set of attraction linkage block 521 is generated through the second electromagnet 522, so that the linkage block 521 is contracted into the connecting seat 52, a sensing assembly is disposed outside the telescopic groove 523, whether the valve clack 5 is deflected or not is detected through the sensing assembly, and meanwhile, the overload phenomenon of the valve clack 5 is prevented from being driven by the excessive pressure of the driving device 3.
As shown in fig. 1 and fig. 8-10, the sensing assembly includes an air bag 524, the air bag 524 is disposed outside the linkage block 521, compressed air and a second piezoelectric plate 525 are disposed in the air bag 524, the second piezoelectric plate 525 is connected with an external current detection system, when the fluid pressure borne by the valve clack 5 is too large, the valve clack 5 rotates, the air bag 524 deforms, at this time, the air pressure inside the air bag 524 increases along with the increase, and the acting force borne by the valve clack 5 can be judged by monitoring the change of an electric signal generated by the second piezoelectric plate 525 through the external current detection system, so that the working personnel can stop working in time, and overload damage of the driving device 3 is avoided.
The working principle of the invention is as follows: the valve clack 5 is driven by the driving device 3 to rotate in the inner valve body 2, fluid is controlled to flow in the inner valve body 2 through the valve clack 5, the sealing frame 25 is arranged in the inner valve body 2, when the valve clack is in a sealing state, the inner wall of the sealing frame 25 is matched with the outer wall of the valve clack 5, the sealing frame 25 is made of high-temperature resistant and corrosion-resistant materials, the situation that the sealing frame 25 is worn after long-time working, gaps exist between the outer wall of the valve clack 5 and the inner wall of the sealing frame 25, so that fluid leakage is caused, in addition, a positioning mechanism is arranged in the sealing frame 25, when the inner wall of the sealing frame 25 is contacted with the outer wall of the valve clack 5, the positioning mechanism is driven to work through the first air pump 4, the valve clack 5 is prevented from being offset due to overlarge fluid pressure in the sealing state through the positioning mechanism, the interior of the inner valve body 2 is also provided with a impurity removing mechanism, after the working is finished, the impurity is prevented from being cleaned on the inner wall of the sealing frame 25 through the second air pump 41, so that the impurities are prevented from being corroded on the inner wall of the sealing frame 25 after the working is finished, and the sealing frame 25 is further accumulated on the inner wall of the sealing frame 25 or the sealing frame is prevented from being completely matched with the sealing frame 5 in the middle when the working process.
As shown in fig. 2-3 and 8, the second embodiment is different from the first embodiment only in that the power assembly is different from the first embodiment: the lifting mechanism comprises a movable groove 21 and a linkage frame 22, wherein a piston 211 is arranged in the movable groove 21, one end of the linkage frame 22 is wound with a spring and is fixedly connected with the piston 211, the other end of the linkage frame 22 is fixedly connected with the impurity removing mechanism, the air outlet end of the second air pump 41 is connected with one end of the movable groove 21, which is far away from the valve clack 5, and one end of the movable groove 21, which is close to the valve clack 5, is provided with an exhaust hole.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A three-eccentric bidirectional sealing butterfly valve is characterized in that: the butterfly valve comprises an outer valve body (1), an inner valve body (2), a driving device (3) and a valve clack (5), wherein the inner valve body (2) is arranged in the outer valve body (1), the valve clack (5) is arranged in the inner valve body (2), the driving device (3) is arranged in the outer valve body (1), the driving device (3) drives the valve clack (5) to rotate in the inner valve body (2), a sealing frame (25) is further arranged in the inner valve body (2), the inner wall of the sealing frame (25) is matched with the outer wall of the valve clack (5), and the sealing frame (25) is made of high-temperature-resistant and corrosion-resistant materials;
the outside of the outer valve body (1) is also provided with a first air pump (4) and a second air pump (41), the inside of the sealing frame (25) is provided with a positioning mechanism, the inside of the inner valve body (2) is also provided with a impurity removing mechanism, the first air pump (4) is connected with the positioning mechanism, the second air pump (41) is connected with the impurity removing mechanism, the valve clack (5) is prevented from being deviated due to overlarge fluid pressure in a sealing state by the positioning mechanism, and the inner wall of the sealing frame (25) is cleaned by the impurity removing mechanism;
the impurity removing mechanism comprises an annular sleeve (23), a cleaning frame (231) and a first electromagnet (232) are arranged in the annular sleeve (23), one end, close to the first electromagnet (232), of the cleaning frame (231) is magnetic, the outer wall of the cleaning frame (231) is matched with the inner wall of the sealing frame (25), one end, close to the impurity removing mechanism, of the inner valve body (2) is provided with a lifting mechanism, and the impurity removing mechanism is driven to move through the lifting mechanism.
2. The triple offset bi-directional seal butterfly valve of claim 1, wherein: the outer end of the valve clack (5) is provided with a positioning groove (51), the positioning mechanism comprises a positioning frame (251) and a containing groove (252), the positioning groove (51) is matched with the positioning frame (251), the positioning frame (251) is arranged in the containing groove (252), the positioning frame (251) is connected with the containing groove (252) through a reset spring rod, the side end of the inner valve body (2) is provided with an air guide groove, the air outlet end of the first air pump (4) is communicated with the air guide groove, one end, close to the air guide groove, of the containing groove (252) is provided with a through hole, and one end, close to the valve clack (5), of the containing groove (252) is provided with a telescopic channel, and the air guide groove is communicated with the containing groove (252) through the through hole;
when in a sealed state: the telescoping passage is aligned with a detent (51).
3. The triple offset bi-directional seal butterfly valve of claim 2, wherein: the positioning frame (251) is provided with a first piezoelectric sheet (2511), and gaps are reserved between the positioning groove (51) and the telescopic channel and the positioning frame (251).
4. The triple offset bi-directional seal butterfly valve of claim 1, wherein: the lifting mechanism comprises a linear motor, and the impurity removing mechanism is driven to move through the linear motor.
5. The triple offset bi-directional seal butterfly valve of claim 1, wherein: elevating system includes movable groove (21) and link frame (22), be provided with piston (211) in movable groove (21), the one end winding of link frame (22) have the spring and with piston (211) fastening connection, the other end and the edulcoration mechanism fastening connection of link frame (22), the one end that valve clack (5) was kept away from to the end of giving vent to anger of second air pump (41) and movable groove (21) is connected, the one end that movable groove (21) is close to valve clack (5) is provided with the exhaust hole.
6. A triple offset bi-directional seal butterfly valve according to any of claims 1-5, wherein: the valve clack (5) is provided with reversing shaft (53) at the side, reversing shaft (53) is close to one end of drive arrangement (3) and is provided with connecting seat (52), the inside of drive arrangement (3) is provided with drive shaft (31), the one end that drive shaft (31) is close to valve clack (5) is provided with the linkage groove and stretches into in connecting seat (52), the inside of connecting seat (52) is provided with flexible groove (523), the inside of flexible groove (523) is provided with linkage piece (521) and second electro-magnet (522), be connected through fixed spring between linkage piece (521) and the second electro-magnet (522), connecting seat (52) are connected with drive shaft (31) through linkage piece (521), the outside of linkage piece (521) is provided with the response subassembly.
7. The triple offset bi-directional seal butterfly valve of claim 6, wherein: the sensing assembly comprises an air bag (524), the air bag (524) is arranged outside the linkage block (521), and compressed air and a second piezoelectric sheet (525) are arranged in the air bag (524).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311467068.6A CN117189886B (en) | 2023-11-07 | 2023-11-07 | Three-eccentric bidirectional sealing butterfly valve |
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| CN202311467068.6A CN117189886B (en) | 2023-11-07 | 2023-11-07 | Three-eccentric bidirectional sealing butterfly valve |
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| CN117189886B CN117189886B (en) | 2024-01-12 |
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| GB214687A (en) * | 1923-01-12 | 1924-04-14 | Robert Welsh | Improvements in and relating to internal combustion engines |
| US20050160716A1 (en) * | 2002-06-18 | 2005-07-28 | Jansen Harvey B. | Distributor purge valve |
| US20120074344A1 (en) * | 2010-09-28 | 2012-03-29 | Keihin Corporation | Fluid passage valve |
| CN104074992A (en) * | 2014-06-10 | 2014-10-01 | 安徽天康股份有限公司 | Self-cleaning type wear-resistant ceramic valve with double gate plates |
| CN204083299U (en) * | 2014-10-30 | 2015-01-07 | 江苏特一机械股份有限公司 | Totally enclosed type push-pull valve |
| CN209654624U (en) * | 2018-12-13 | 2019-11-19 | 上海美力德阀门制造有限公司 | Three eccentricity hard seal butterfly valve |
| CN111895109A (en) * | 2020-06-29 | 2020-11-06 | 芜湖力维胜机械设计有限公司 | Three-eccentric bidirectional butterfly valve sealing structure |
| CN215902348U (en) * | 2021-09-22 | 2022-02-25 | 江苏三力防腐管阀件有限公司 | Prevent butterfly valve jam from blowing structure and including butterfly valve of this structure |
| CN115126924A (en) * | 2022-07-06 | 2022-09-30 | 江苏艾瑞自控科技发展有限公司 | Diaphragm type straight stroke actuator |
| CN115492939A (en) * | 2022-11-14 | 2022-12-20 | 山东亿佰通阀门有限公司 | Butterfly valve |
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2023
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| GB214687A (en) * | 1923-01-12 | 1924-04-14 | Robert Welsh | Improvements in and relating to internal combustion engines |
| US20050160716A1 (en) * | 2002-06-18 | 2005-07-28 | Jansen Harvey B. | Distributor purge valve |
| US20120074344A1 (en) * | 2010-09-28 | 2012-03-29 | Keihin Corporation | Fluid passage valve |
| CN104074992A (en) * | 2014-06-10 | 2014-10-01 | 安徽天康股份有限公司 | Self-cleaning type wear-resistant ceramic valve with double gate plates |
| CN204083299U (en) * | 2014-10-30 | 2015-01-07 | 江苏特一机械股份有限公司 | Totally enclosed type push-pull valve |
| CN209654624U (en) * | 2018-12-13 | 2019-11-19 | 上海美力德阀门制造有限公司 | Three eccentricity hard seal butterfly valve |
| CN111895109A (en) * | 2020-06-29 | 2020-11-06 | 芜湖力维胜机械设计有限公司 | Three-eccentric bidirectional butterfly valve sealing structure |
| CN215902348U (en) * | 2021-09-22 | 2022-02-25 | 江苏三力防腐管阀件有限公司 | Prevent butterfly valve jam from blowing structure and including butterfly valve of this structure |
| CN115126924A (en) * | 2022-07-06 | 2022-09-30 | 江苏艾瑞自控科技发展有限公司 | Diaphragm type straight stroke actuator |
| CN115492939A (en) * | 2022-11-14 | 2022-12-20 | 山东亿佰通阀门有限公司 | Butterfly valve |
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| CN117189886B (en) | 2024-01-12 |
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