CN115468002A - Suspension double-seat metal hard-sealing check valve without shaft and sleeve - Google Patents
Suspension double-seat metal hard-sealing check valve without shaft and sleeve Download PDFInfo
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- CN115468002A CN115468002A CN202211013703.9A CN202211013703A CN115468002A CN 115468002 A CN115468002 A CN 115468002A CN 202211013703 A CN202211013703 A CN 202211013703A CN 115468002 A CN115468002 A CN 115468002A
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- flow guide
- cambered surface
- check valve
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- 238000007789 sealing Methods 0.000 title claims abstract description 88
- 239000002184 metal Substances 0.000 title claims abstract description 20
- 239000000725 suspension Substances 0.000 title claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000013016 damping Methods 0.000 claims description 25
- 238000003825 pressing Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 15
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 230000006872 improvement Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008717 functional decline Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a shaftless sleeve-free suspended double-seat metal hard sealing check valve, which relates to the technical field of check valves and comprises a valve body, wherein connecting flanges are fixedly arranged on the outer walls of the circumferences of two ends of the valve body; the inner rod of the valve core is provided with the wavy cambered surface, so that resistance generated when water flows through can be effectively reduced, and the reduction of head loss is facilitated; the arrangement of the flow guide end body can reduce the flowing resistance of the medium by utilizing the arc-shaped structural characteristics, does not generate vortex and backflow, and achieves the effect of no turbulent flow.
Description
Technical Field
The invention relates to the technical field of check valves, in particular to a non-shaft non-sleeve suspension type double-seat metal hard seal check valve.
Background
The check valve is mainly suitable for clean water media of systems such as water supply and drainage, fire control, heating ventilation, metallurgy, petrochemical industry and the like, is arranged at the outlet of a water pump or in other pipelines with check requirements, and prevents the media from flowing back to damage the pump and the pipeline system. Most check valves in the market at present are complex in internal structure, and the opening and closing of the valve are realized by adopting a shaft, a bearing and the like in the check valves.
Through retrieval, the Chinese invention patent with the publication number of CN113266687B discloses a check valve, which relates to the technical field of valves and comprises a valve body and a valve core mechanism, wherein the valve body is provided with an inlet end, a connecting channel and an outlet end which are sequentially connected. The valve core mechanism comprises a flow limiting plate, a sealing assembly, a connecting sleeve, a movable rod, a supporting plate, a rotating shaft and blades. The flow limiting plate is fixed in the connecting channel, the flow limiting hole is formed in the middle of the flow limiting plate, the sealing assembly is arranged on one side of the flow limiting plate, the connecting sleeve is installed on one side of the sealing assembly and is connected with the movable rod in an inserting mode, the supporting plate is fixed in the connecting channel, fluid can penetrate through the supporting plate, and one end of the movable rod is connected with the supporting plate in an inserting mode. A flow guide channel is formed in the side wall of the valve body, the blades are installed in the flow guide channel through a rotating shaft, and the blades are connected with the movable rod in a transmission mode. When the fluid flows reversely, the sealing assembly can better avoid the condition of fluid backflow; when the fluid flows in the forward direction, the blades cannot rotate under the action of the fluid all the time, so that the energy consumption is reduced.
However, the invention has the following disadvantages: the inner structure design of above-mentioned patent is mostly plane and vertical face, and when practical application, the water conservancy diversion performance to the rivers medium is not enough, forms the turbulent flow easily, and when the medium in the face of great kinetic energy, the water hammer phenomenon is very obvious, and simultaneously, inseparable structures such as above-mentioned patent adoption gear drive, and then after long-time the use, can lead to the function decline of valve body to become invalid even, so has the limitation.
Disclosure of Invention
The invention aims to provide a suspension type double-seat metal hard seal check valve without a shaft and a sleeve, which aims to solve the problems in the prior art.
The technical scheme of the invention is as follows: the suspended double-seat metal hard seal check valve without the shaft and the sleeve comprises a valve body, connecting flanges are fixedly arranged on the outer walls of the circumferences of two ends of the valve body, and the suspended double-seat metal hard seal check valve also comprises a valve core inner rod, an arc surface port, a wide mouth groove, a flow guide end body and a water hammer protection component;
the valve core inner rod is arranged at the inner axis position of the valve body, the outer wall of one end of the valve core inner rod is provided with a wavy cambered surface, and the outer wall of the wavy cambered surface is fixedly connected with a plurality of first shunt connecting pieces;
the cambered surface port and the wide opening groove are respectively arranged at two sides of the valve body and are communicated with each other;
the flow guide end body is close to the wide mouth groove and is coaxially arranged with the wide mouth groove, the whole flow guide end body is of a fusiform structure, an inner cambered surface end is arranged at the axis position of the flow guide end body, the inner cambered surface end is communicated with the bucket-shaped mouth, a cavity is arranged inside the flow guide end body, and a plurality of flow distribution connecting pieces II are fixedly connected between the inner rod of the valve core and the bucket-shaped mouth;
the water hammer protection assembly is arranged between the valve body and the flow guide end body and comprises a plurality of communicating pipes, two ends of each communicating pipe are respectively communicated with the cambered surface port and a cavity in the flow guide end body, one end, close to the cambered surface port, of each communicating pipe is fixedly provided with a mounting ring, a reset spring is fixedly arranged on one side wall, close to the cambered surface port, of each mounting ring, the bottom end of each reset spring is fixedly connected with a sealing plug piece, and the sealing plug pieces are in sealing sliding connection with the inner portions of the communicating pipes;
and the abutting assembly is arranged inside the flow guide end body.
Preferably, the abutting assembly comprises a sealing abutting ring and a movable valve clack, the sealing abutting ring is fixedly installed inside the valve body, a stepped notch is formed in the inner side wall of the sealing abutting ring, and the movable valve clack is arranged on one adjacent side of the sealing abutting ring.
Preferably, the outer side wall of the movable valve clack is provided with a stepped outer ring surface matched with the stepped notch, one end of the valve core inner rod close to the sealing abutting ring is provided with a folded inclined surface, and the inner side surface of the sealing abutting ring is provided with an inclined inner ring surface.
Preferably, the abutting assembly further comprises a limiting end ring, the limiting end ring is fixedly installed in the cavity inside the flow guide end body, two damping sealing rings are connected between the inner side wall of the limiting end ring and the cavity in a sealing and sliding mode, and a connecting ring rib is fixedly connected between the two damping sealing rings.
Preferably, the outer wall of one side of the damping sealing ring, which is close to the movable valve clack, is fixedly connected with a plurality of mounting rods, each mounting rod is sleeved with a support spring, and two ends of each support spring are respectively and fixedly connected with the movable valve clack and the damping sealing ring.
Preferably, the outer side wall of the flow guide end body is provided with an outer cambered surface end, and a flow guide liquid outlet cavity is formed between the outer cambered surface end and the wide mouth groove.
Preferably, one side of the movable valve clack, which is far away from the sealing abutting ring, is matched with the flow guide end body.
Preferably, a plurality of water conservancy diversion spiral fins are fixedly connected to the inner wall of the cambered surface port, the number of the water conservancy diversion spiral fins corresponds to that of the communicating pipes, and the water conservancy diversion spiral fins are arranged adjacent to the pipe orifice of the communicating pipe.
Preferably, each outer wall of one end of the communicating pipe is fixedly provided with a connecting sleeve, and the plurality of connecting sleeves are fixedly connected with two coaxially arranged reinforcing outer rings.
The invention provides a suspension type double-seat metal hard sealing check valve without a shaft and a sleeve through improvement, and compared with the prior art, the suspension type double-seat metal hard sealing check valve has the following improvements and advantages:
one is as follows: the inner rod of the valve core is provided with the wavy cambered surface, so that the resistance generated when water flows through can be effectively reduced, and the reduction of the head loss is facilitated; the arrangement of the flow guide end body can reduce the flowing resistance of the medium by utilizing the arc-shaped structural characteristics, does not generate vortex and backflow and achieves the effect of no turbulent flow;
the second step is as follows: the inner wall of the cambered surface port is arc-shaped, and the opening size is changed from wide to narrow, so that a narrow tube effect can be generated when water flows through, the flowing speed of the water flow is improved, the pushing force on the movable valve clack can be increased, the pre-tightening force of a subsequent abutting spring can be overcome when the water flow is small, and the movable valve clack is opened;
and thirdly: according to the invention, by utilizing the arranged water hammer protection component, when the flow in the pipeline is increased to the rated flow from zero, most of kinetic energy carried by water flow acts on the movable valve clack through the cambered surface port and pushes the movable valve clack to open, and meanwhile, the rest of kinetic energy can act on the liquid medium of the communicating pipe by pushing the sealing plug piece, so that the protection of the water hammer phenomenon is realized; similarly, when the flow of water flow in the pipeline is rapidly reduced, and the pipeline is close to the position of the cambered surface port of the check valve, because the space is increased, and external air does not rush from the other end of the pipeline in time, negative pressure is formed in the position in a short time, and the sealing plug piece can move towards the axis direction of the pipeline, so that the adverse effect caused by rapid change of the flow in the pipeline in a short time can be automatically compensated correspondingly, and the service life of the check valve can be prolonged;
fourthly, the method comprises the following steps: according to the invention, the rapid change of the flow inside the pipeline can cause the damping sealing ring to move in the horizontal direction (small-amplitude expansion occurs when the abutting spring abuts) when the sealing plug piece applies extrusion force or suction force to the liquid medium, and the extrusion force and the suction force are counteracted by the damped movement of the damping sealing ring between the limiting end ring and the cavity, so that the protection of the water hammer phenomenon is realized.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic overall first-view perspective structure of the present invention;
FIG. 2 is a schematic overall side view of the present invention;
FIG. 3 is a schematic overall second-view perspective view of the present invention;
FIG. 4 is a schematic structural view of the valve body and the flow guide end body of the present invention in a separated state;
FIG. 5 is a schematic cross-sectional view of the present invention;
FIG. 6 is an enlarged view of the structure at A in FIG. 5 according to the present invention;
FIG. 7 is an enlarged view of the structure of FIG. 5B according to the present invention;
FIG. 8 is a schematic view of the internal structure of the valve body of the present invention;
fig. 9 is an exploded view of the pressing member of the present invention.
Reference numerals:
1. a valve body; 11. a connecting flange; 12. a cambered surface port; 13. flow guiding spiral rib sheets; 14. a wide mouth groove; 2. a water hammer prevention assembly; 21. a communicating pipe; 211. a mounting ring; 212. a return spring; 213. a sealing plug sheet; 22. connecting a sleeve; 23. reinforcing the outer ring; 3. a flow-guiding end body; 301. an outer cambered end; 302. an inner cambered end; 31. a limiting end ring; 32. a damping sealing ring; 321. connecting ring ribs; 33. mounting a rod; 34. the spring is tightly propped; 4. an inner rod of the valve core; 401. a wavy arc surface; 402. a folded inclined plane; 41. a shunt connecting sheet I; 42. a second shunt connecting sheet; 5. sealing the butting ring; 501. a stepped notch; 51. a movable valve flap; 511. a stepped outer ring surface; 512. an oblique inner ring surface.
Detailed Description
The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described, 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.
The invention provides a shaftless sleeveless suspension type double-seat metal hard sealing check valve through improvement, and the technical scheme of the invention is as follows:
as shown in fig. 1 to 9, an embodiment of the present invention provides a suspension type double-seat metal hard seal check valve without a shaft and a sleeve, including a valve body 1, wherein both circumferential outer walls at both ends of the valve body 1 are fixedly provided with a connecting flange 11, and the connecting flange 11 is used for connecting and installing the valve body 1 and a pipeline;
the valve core inner rod 4 is arranged at the inner axis position of the valve body 1, the outer wall of one end of the valve core inner rod 4 is provided with a wavy cambered surface 401, and the outer wall of the wavy cambered surface 401 is fixedly connected with a plurality of first shunt connecting pieces 41; the arrangement of the wavy cambered surface 401 can effectively reduce the resistance generated when water flows through, and further is beneficial to reducing the head loss.
The cambered surface port 12 and the wide mouth groove 14 are respectively arranged at two sides of the valve body 1, and the cambered surface port 12 is communicated with the wide mouth groove 14; the inner wall of the cambered surface port 12 is arc-shaped, and the opening size is narrow from wide to narrow, so that when water flows through, a narrow tube effect can be generated, the flowing speed of the water flow is improved, the pushing force on the movable valve clack 51 can be increased, the pre-tightening force of the follow-up abutting spring 34 can be overcome through small water flow, and the movable valve clack 51 is opened.
The flow guide end body 3 is close to the wide mouth groove 14 and is coaxially arranged with the wide mouth groove 14, the whole flow guide end body 3 is of a fusiform structure, an inner cambered surface end 302 is arranged at the axis position of the flow guide end body 3, the inner cambered surface end 302 is communicated with a bucket-shaped cavity opening, a cavity is formed in the flow guide end body 3, and a plurality of flow distribution connecting pieces II 42 are fixedly connected between the valve core inner rod 4 and the bucket-shaped cavity opening; through the arrangement of the structure and the arrangement of the flow guide end body 3, the resistance of medium flow can be reduced by utilizing the arc-shaped structural characteristics, no vortex and backflow are generated, and the effect of no turbulent flow is achieved.
The water hammer protection component 2 is arranged between the valve body 1 and the flow guide end body 3, the water hammer protection component 2 comprises a plurality of communication pipes 21, two ends of each communication pipe 21 are respectively communicated with the cambered surface port 12 and a cavity in the flow guide end body 3, one end, close to the cambered surface port 12, in each communication pipe 21 is fixedly provided with a mounting ring 211, a side wall, close to the cambered surface port 12, of the mounting ring 211 is fixedly provided with a return spring 212, the bottom end of the return spring 212 is fixedly connected with a sealing plug piece 213, the sealing plug piece 213 is in sealing sliding connection with the interior of the communication pipe 21, and liquid media are arranged in the communication pipes 21 and the communicated cavities; by using the water hammer protection component 2, when the medium flow in the pipeline is increased from zero to the rated flow, most of the kinetic energy carried by the water flow acts on the movable valve clack 51 through the cambered surface port 12 and pushes the movable valve clack 51 to open, and meanwhile, the rest of the kinetic energy can act on the liquid medium of the communication pipe 21 by pushing the sealing plug piece 213, so that the protection of the water hammer phenomenon is realized; similarly, when the inside water flow of pipeline reduces fast, the pipeline is close to check valve cambered surface port 12's position department, because the space increases, and outside air does not in time gush from the pipeline other end, can make this position form the negative pressure in the short time, and sealed plug piece 213 can remove to pipeline axle center direction to can carry out corresponding compensation to the harmful effects that flow in the pipeline short time internal quick change produced automatically, be favorable to increasing this check valve's life.
The pressing component is arranged inside the flow guide end body 3; the pressing component is used for realizing the automatic closing of the check valve.
As a further scheme of the present invention, the pressing component includes a sealing pressing ring 5 and a movable valve flap 51, the sealing pressing ring 5 is fixedly installed inside the valve body 1, a stepped notch 501 is formed on an inner side wall of the sealing pressing ring 5, and the movable valve flap 51 is disposed on an adjacent side of the sealing pressing ring 5.
Further, the outer side wall of the movable valve clack 51 is provided with a stepped outer ring surface 511 which is matched with the stepped notch 501, one end of the valve core inner rod 4 close to the sealing abutting ring 5 is provided with a folded inclined surface 402, and the inner side surface of the sealing abutting ring 5 is provided with an inclined inner ring surface 512; through the setting of above-mentioned structure, utilize the ladder notch 501 that sets up on sealed support ring 5, when movable valve clack 51 and sealed support ring 5 looks gomphosis, can increase the area of contact between movable valve clack 51 and the sealed support ring 5 through the outer anchor ring 511 and the cooperation of ladder notch 501 of the ladder that sets up, reach the purpose that improves the leakproofness, improve the contrary effect of ending of this check valve to rivers.
As a further scheme of the present invention, the pressing assembly further includes a limit end ring 31, the limit end ring 31 is fixedly installed in the cavity inside the flow guiding end body 3, two damping sealing rings 32 are hermetically and slidably connected between the inner side wall of the limit end ring 31 and the cavity, and a connecting ring rib 321 is fixedly connected between the two damping sealing rings 32; the two damping sealing rings 32 are matched with the connecting ring rib 321, so that the sealing performance between the damping sealing ring 32 and the cavity and between the damping sealing ring 32 and the limiting end ring 31 can be improved.
Furthermore, a plurality of mounting rods 33 are fixedly connected to the outer wall of one side of the damping sealing ring 32 close to the movable valve flap 51, a holding spring 34 is sleeved outside each mounting rod 33, and two ends of each holding spring 34 are respectively and fixedly connected with the movable valve flap 51 and the damping sealing ring 32; through the arrangement of the structure, when the sealing plug piece 213 applies extrusion force or suction force to the liquid medium, the rapid change of the flow inside the pipeline can cause the damping sealing ring 32 to move in the horizontal direction (the resisting spring 34 expands and contracts in a small amplitude at the moment), and the extrusion force and the suction force are counteracted by the damped movement of the damping sealing ring 32 between the limiting end ring 31 and the cavity, so that the protection of the water hammer phenomenon is realized; when the movable valve clack 51 bears the main acting force of water flow, the movable valve clack is in a fully opened or fully closed state, the short-distance movement of the damping sealing ring 32 does not influence the position of the movable valve clack 51, and only the abutting spring 34 can be slightly stretched.
Further, the outer side wall of the flow guide end body 3 is provided with an outer arc surface end 301, and a flow guide liquid cavity is formed between the outer arc surface end 301 and the wide-mouth groove 14.
Further, one side of the movable valve clack 51, which is far away from the sealing resisting ring 5, is matched with the flow guide end body 3; by means of the structure, when the movable valve clack 51 is completely opened under the action of water flow, one end of the movable valve clack 51 can form a clamping effect with the flow guide end body 3, as shown in fig. 7, so that the condition that the movable valve clack 51 shakes due to slight change of water flow inside the pipeline can be avoided.
Further, a plurality of flow guiding spiral ribs 13 are fixedly connected to the inner wall of the arc-shaped port 12, the number of the flow guiding spiral ribs 13 corresponds to that of the plurality of communicating pipes 21, and the flow guiding spiral ribs 13 are arranged adjacent to the pipe openings of the communicating pipes 21; borrow by above-mentioned structure, when rivers flow through cambered surface port 12, can play certain unhurried current effect through a plurality of water conservancy diversion spiral rib pieces 13's guide effect, avoid rivers direct perpendicular action to movable valve clack 51, be favorable to improving movable valve clack 51's life, simultaneously, water conservancy diversion spiral rib pieces 13 and the adjacent setting of communicating pipe 21 mouth of pipe for 21 can be more natural will possess the rivers of great kinetic energy and unload the power processing communicating pipe.
Further, a connecting sleeve 22 is fixedly installed on the outer wall of one end of each communicating pipe 21, and two coaxially arranged reinforcing outer rings 23 are fixedly connected to the plurality of connecting sleeves 22; through the arrangement of the structure, a plurality of communicating pipes 21 can be well protected.
The specific working method comprises the following steps: when the valve is used, the inner wall of the cambered surface port 12 is in an arc shape, and the opening size is from wide to narrow (as shown in figure 5), so that when water flows through, a narrow pipe effect is generated, the flowing speed of the water flow is increased, the pushing force on the movable valve clack 51 is increased, and the pretightening force of the subsequent abutting spring 34 is overcome when the water flow is smaller, so that the movable valve clack 51 is opened; when water flows through the cambered surface port 12, a certain flow slowing effect is achieved through the guiding effect of the plurality of flow guiding spiral ribs 13, the water flow is prevented from directly and vertically acting on the movable valve clack 51, the service life of the movable valve clack 51 is prolonged, and meanwhile, the flow guiding spiral ribs 13 are arranged adjacent to the pipe orifice of the communicating pipe 21, so that the communicating pipe 21 can more naturally carry out force unloading treatment on the water flow with high kinetic energy; when the movable valve clack 51 is completely opened under the action of water flow, one end of the movable valve clack 51 and the flow guide end body 3 form a clamping effect, as shown in fig. 7, the condition that the movable valve clack 51 shakes due to slight change of water flow in the pipeline is avoided; the arrangement of the wavy cambered surface 401 reduces resistance generated when water flows through the valve core inner rod 4, and reduces head loss; when the medium flow in the pipeline is increased from zero to the rated flow, most of the kinetic energy carried by the water flow acts on the movable valve clack 51 through the cambered surface port 12 and pushes the movable valve clack 51 to open, and meanwhile, the rest of the kinetic energy can act on the liquid medium of the communication pipe 21 by pushing the sealing plug piece 213, so that the water hammer phenomenon is protected; similarly, when the flow rate of water flow in the pipeline is rapidly reduced, and the pipeline is close to the position of the cambered-surface port 12 of the check valve, because the space is increased, and the outside air does not rush from the other end of the pipeline in time, negative pressure is formed in the position in a short time, the sealing plug piece 213 moves towards the axis direction of the pipeline, when the sealing plug piece 213 applies extrusion force or suction force to the liquid medium, the damping sealing ring 32 is caused to move in the horizontal direction (small-amplitude expansion and contraction occur at the moment of the abutting spring 34), and the extrusion force and the suction force are offset by the damped movement of the damping sealing ring 32 between the limiting end ring 31 and the cavity, so that the protection of the water hammer phenomenon is realized; because the movable valve clack 51 is in a fully opened or fully closed state when bearing the main acting force of water flow, the short-distance movement of the damping sealing ring 32 does not affect the position of the movable valve clack 51, and only the abutting spring 34 can be stretched and contracted in a small range; when water flow at one end of the pipeline loses driving force, thrust is not generated on the outer side surface of the movable valve clack 51 any more, so that under the action of the abutting spring 34, when the movable valve clack 51 is embedded with the sealing abutting ring 5, the contact area between the movable valve clack 51 and the sealing abutting ring 5 is increased through the matching of the arranged step outer annular surface 511 and the step notch 501, the purpose of improving the sealing property is achieved, and the check effect of the check valve on water flow is improved.
The previous description is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. Shaftless does not have floated pair of seat metal hard seal check valve of cover, including valve body (1), the equal fixed mounting in both ends circumference outer wall of valve body (1) has flange (11), its characterized in that: also includes;
the valve core inner rod (4) is arranged at the inner axis position of the valve body (1), the outer wall of one end of the valve core inner rod (4) is provided with a wavy cambered surface (401), and the outer wall of the wavy cambered surface (401) is fixedly connected with a plurality of first shunt connecting pieces (41);
the valve body is characterized by comprising an arc surface port (12) and a wide groove (14), wherein the arc surface port (12) and the wide groove (14) are respectively arranged on two sides of the valve body (1), and the arc surface port (12) is communicated with the wide groove (14);
the flow guide end body (3) is close to the wide mouth groove (14) and is coaxially arranged with the wide mouth groove (14), the flow guide end body (3) is integrally in a shuttle-shaped structure, an inner cambered surface end (302) is arranged at the axis position of the flow guide end body (3), the inner cambered surface end (302) is communicated with a hopper-shaped cavity opening, a cavity is formed in the flow guide end body (3), and a plurality of flow distribution connecting pieces II (42) are fixedly connected between the inner rod (4) of the valve core and the hopper-shaped cavity opening;
the water hammer protection component (2) is arranged between the valve body (1) and the flow guide end body (3), the water hammer protection component (2) comprises a plurality of communicating pipes (21), two ends of each communicating pipe (21) are respectively communicated with the cambered surface port (12) and a cavity inside the flow guide end body (3), one end, close to the cambered surface port (12), inside each communicating pipe (21) is fixedly provided with a mounting ring (211), a side wall, close to the cambered surface port (12), of each mounting ring (211) is fixedly provided with a reset spring (212), the bottom end of each reset spring (212) is fixedly connected with a sealing plug piece (213), and each sealing plug piece (213) is in sealing sliding connection with the inside of each communicating pipe (21);
the pressing component is arranged inside the flow guide end body (3).
2. The shaftless sleeveless suspension type double-seat metal hard sealing check valve according to claim 1, characterized in that: the pressing component comprises a sealing pressing ring (5) and a movable valve clack (51), the sealing pressing ring (5) is fixedly arranged inside the valve body (1), a stepped notch (501) is formed in the inner side wall of the sealing pressing ring (5), and the movable valve clack (51) is arranged on one adjacent side of the sealing pressing ring (5).
3. The shaftless sleeveless suspension type double-seat metal hard seal check valve according to claim 2, wherein: the outer side wall of the movable valve clack (51) is provided with a stepped outer ring surface (511) matched with the stepped notch (501), one end of the valve core inner rod (4) close to the sealing abutting ring (5) is provided with a folded inclined surface (402), and the inner side surface of the sealing abutting ring (5) is provided with an inclined inner ring surface (512).
4. The shaftless sleeveless suspension type double-seat metal hard sealing check valve according to claim 1, characterized in that: the pressing assembly further comprises a limiting end ring (31), the limiting end ring (31) is fixedly installed in the cavity inside the flow guide end body (3), two damping sealing rings (32) are connected between the inner side wall of the limiting end ring (31) and the cavity in a sealing and sliding mode, and a connecting ring rib (321) is fixedly connected between the two damping sealing rings (32).
5. The shaftless sleeveless suspension type double-seat metal hard sealing check valve according to claim 4, wherein: the damping sealing ring is characterized in that a plurality of mounting rods (33) are fixedly connected to the outer wall of one side of the damping sealing ring (32) close to the movable valve clack (51), each mounting rod (33) is sleeved with a supporting spring (34), and two ends of each supporting spring (34) are fixedly connected with the movable valve clack (51) and the damping sealing ring (32) respectively.
6. The shaftless sleeveless suspension type double-seat metal hard sealing check valve according to claim 1, characterized in that: the outer side wall of the flow guide end body (3) is provided with an outer cambered surface end (301), and a flow guide liquid outlet cavity is formed between the outer cambered surface end (301) and the wide groove (14).
7. The shaftless sleeveless suspension type double-seat metal hard sealing check valve according to claim 2, characterized in that: one side of the movable valve clack (51) far away from the sealing support ring (5) is matched with the flow guide end body (3).
8. The shaftless sleeveless suspension type double-seat metal hard sealing check valve according to claim 1, characterized in that: a plurality of flow guide spiral ribs (13) are fixedly connected to the inner wall of the cambered surface port (12), the number of the flow guide spiral ribs (13) corresponds to that of the communicating pipes (21), and the flow guide spiral ribs (13) are arranged adjacent to the pipe openings of the communicating pipes (21).
9. The shaftless sleeveless suspension type double-seat metal hard sealing check valve according to claim 1, characterized in that: every the equal fixed mounting of one end outer wall of communicating pipe (21) has connecting sleeve (22), and two coaxial setting's of fixedly connected with strengthen outer loop (23) on a plurality of connecting sleeve (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211013703.9A CN115468002B (en) | 2022-08-23 | 2022-08-23 | Suspension double-seat metal hard-sealing check valve without shaft and sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211013703.9A CN115468002B (en) | 2022-08-23 | 2022-08-23 | Suspension double-seat metal hard-sealing check valve without shaft and sleeve |
Publications (2)
| Publication Number | Publication Date |
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| CN115468002A true CN115468002A (en) | 2022-12-13 |
| CN115468002B CN115468002B (en) | 2023-03-31 |
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| CN202211013703.9A Active CN115468002B (en) | 2022-08-23 | 2022-08-23 | Suspension double-seat metal hard-sealing check valve without shaft and sleeve |
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| CN (1) | CN115468002B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6328275B1 (en) * | 2000-02-04 | 2001-12-11 | Husco International, Inc. | Bidirectional pilot operated control valve |
| CN201218219Y (en) * | 2008-07-11 | 2009-04-08 | 湖南泵阀制造有限公司 | Sleeve type multi-functional water power control valve |
| CN102748479A (en) * | 2012-06-20 | 2012-10-24 | 南通高中压阀门有限公司 | Energy-saving and low-flow-resistance Y-type shutoff valve |
| CN105465425A (en) * | 2016-01-22 | 2016-04-06 | 上海东方威尔阀门有限公司 | Energy-saving efficient check valve |
| CN207848422U (en) * | 2017-12-22 | 2018-09-11 | 东营市东达机械制造有限责任公司 | New type corrugated formula low sheraing valve |
| CN210623700U (en) * | 2019-09-17 | 2020-05-26 | 苏州沃达园林机械有限公司 | Quick-connecting one-way valve |
| CN211550546U (en) * | 2019-12-26 | 2020-09-22 | 乳山市大洋硅胶厂 | Pipeline overflow valve |
| CN112867886A (en) * | 2018-10-18 | 2021-05-28 | 基伊埃图亨哈根有限公司 | Valve, in particular check valve |
| CN114484020A (en) * | 2022-01-26 | 2022-05-13 | 宁波一机阀门制造有限公司 | Suspension type double-seat metal hard sealing check valve without shaft and sleeve |
-
2022
- 2022-08-23 CN CN202211013703.9A patent/CN115468002B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6328275B1 (en) * | 2000-02-04 | 2001-12-11 | Husco International, Inc. | Bidirectional pilot operated control valve |
| CN201218219Y (en) * | 2008-07-11 | 2009-04-08 | 湖南泵阀制造有限公司 | Sleeve type multi-functional water power control valve |
| CN102748479A (en) * | 2012-06-20 | 2012-10-24 | 南通高中压阀门有限公司 | Energy-saving and low-flow-resistance Y-type shutoff valve |
| CN105465425A (en) * | 2016-01-22 | 2016-04-06 | 上海东方威尔阀门有限公司 | Energy-saving efficient check valve |
| CN207848422U (en) * | 2017-12-22 | 2018-09-11 | 东营市东达机械制造有限责任公司 | New type corrugated formula low sheraing valve |
| CN112867886A (en) * | 2018-10-18 | 2021-05-28 | 基伊埃图亨哈根有限公司 | Valve, in particular check valve |
| CN210623700U (en) * | 2019-09-17 | 2020-05-26 | 苏州沃达园林机械有限公司 | Quick-connecting one-way valve |
| CN211550546U (en) * | 2019-12-26 | 2020-09-22 | 乳山市大洋硅胶厂 | Pipeline overflow valve |
| CN114484020A (en) * | 2022-01-26 | 2022-05-13 | 宁波一机阀门制造有限公司 | Suspension type double-seat metal hard sealing check valve without shaft and sleeve |
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|---|---|
| CN115468002B (en) | 2023-03-31 |
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Denomination of invention: Shaftless and sleeveless suspended double seat metal hard seal check valve Granted publication date: 20230331 Pledgee: Bank of Ningbo Co.,Ltd. Fenghua sub branch Pledgor: NINGBO VALVE MANUFACTURING Co.,Ltd. Registration number: Y2024980024538 |
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