CN118009096B - A regulating ball valve with pressure reduction and noise reduction functions - Google Patents
A regulating ball valve with pressure reduction and noise reduction functions Download PDFInfo
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- CN118009096B CN118009096B CN202410347004.0A CN202410347004A CN118009096B CN 118009096 B CN118009096 B CN 118009096B CN 202410347004 A CN202410347004 A CN 202410347004A CN 118009096 B CN118009096 B CN 118009096B
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- 230000009467 reduction Effects 0.000 title abstract description 6
- 230000001105 regulatory effect Effects 0.000 title abstract 2
- 239000012530 fluid Substances 0.000 claims abstract description 150
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 235000014676 Phragmites communis Nutrition 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 9
- 244000273256 Phragmites communis Species 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 description 16
- 230000000903 blocking effect Effects 0.000 description 12
- 230000009471 action Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 241000446313 Lamella Species 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 230000008602 contraction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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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
-
- 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
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
本发明公开了一种具有降压降噪功能的调节型球阀，涉及球阀技术领域，包括外壳，所述外壳上方设置有电控机构，外壳的内部设置有球体和瓣片，所述瓣片为圆弧形，所述球体的中间区域开设有流体通道，所述瓣片位于球体和外壳的间隙中，所述电控机构用于改变瓣片相对球体的偏转角度，进而对流体通道的一端进行封闭，所述流体通道的竖直截面呈对称的三角形，流体通道的靠近外壳水平中心线一侧的通过截面高度小于远离外壳水平中心线一侧的通过截面高度。本发明通过对流体通道进行优化，使得流体的通过路径无需进行大角度偏转，流体的行进路线大致为直线，避免流体的通过截面在短时间内发生较大的差异，以至于出现湍流闪蒸气穴等现象，产生噪音。
The present invention discloses a regulating ball valve with pressure reduction and noise reduction functions, which relates to the technical field of ball valves, including a shell, an electric control mechanism is arranged above the shell, a sphere and a petal are arranged inside the shell, the petal is in an arc shape, a fluid channel is opened in the middle area of the sphere, the petal is located in the gap between the sphere and the shell, the electric control mechanism is used to change the deflection angle of the petal relative to the sphere, and then close one end of the fluid channel, the vertical cross section of the fluid channel is a symmetrical triangle, and the height of the through section of the fluid channel close to the horizontal center line of the shell is less than the height of the through section away from the horizontal center line of the shell. The present invention optimizes the fluid channel so that the passage path of the fluid does not need to be deflected at a large angle, and the fluid travel route is roughly a straight line, so as to avoid large differences in the passage cross section of the fluid in a short time, so as to cause phenomena such as turbulent flash cavitation and generate noise.
Description
Technical Field
The invention relates to the technical field of ball valves, in particular to an adjustable ball valve with the functions of reducing pressure and noise.
Background
The ball valve is mainly used for cutting off, distributing and changing the flow direction of a medium in a pipeline, and can be tightly closed only by rotating by 90 degrees and small rotating moment, so that the ball valve is most suitable for being used as a switch and a cut-off valve.
When the ball valve is used as a control valve, the moment when the valve is opened or closed generates larger turbulence on a medium, and particularly under the condition of high pressure difference working condition, the valve can generate larger vibration and noise to influence the service life and reliability of the valve.
During use of existing ball valves, the movement path of the fluid may deflect at large angles according to the deflection of the ball valve, resulting in a large difference in the passage cross section of the fluid during passage of the fluid through the ball valve.
Disclosure of Invention
The invention aims to provide an adjusting ball valve with the functions of reducing pressure and noise so as to solve the problems in the background art.
In order to solve the technical problems, the invention provides the technical scheme that the adjustable ball valve with the functions of reducing pressure and noise comprises a shell, wherein an electric control mechanism is arranged above the shell, a sphere and a flap are arranged inside the shell, the flap is in a circular arc shape, a fluid channel is arranged in the middle area of the sphere, the flap is positioned in a gap between the sphere and the shell, and the electric control mechanism is used for changing the deflection angle of the flap relative to the sphere so as to seal one end of the fluid channel;
the vertical section of the fluid channel is in a symmetrical triangle shape, and the height of the passing section of the fluid channel on the side close to the horizontal center line of the shell is smaller than that of the passing section on the side far from the horizontal center line of the shell;
Before the ball valve is used, the ball valve is required to be installed, flanges are arranged on two sides of the shell, the ball valve is connected with the pipeline through the flanges, then the ball valve is put into use, during the use of the ball valve, fluid enters the ball valve from the pipeline, then the fluid passes through a ball body in the middle of the ball valve, a fluid channel is formed in the middle area of the ball body, and the orientation of the fluid channel is the same as that of the pipeline on two sides of the ball valve;
Wherein a flap is arranged between the shell and the sphere, one end of the flap is connected with an electric control mechanism, the electric control mechanism is used for controlling the deflection state of the flap, during the operation of the electric control mechanism, the electric control mechanism drives the semi-disc to rotate by taking the central axis of the sphere as the center of a circle, wherein the shell is fixedly connected with the sphere, the inner wall of the flap is matched with the outer wall of the sphere in size, after the flap deflects, the inner wall of the flap seals one side of the fluid channel, and the flap further limits the volume of the circulating body passing through the ball valve by changing the input end or the output end covering one side of the fluid channel;
Compared with a spherical valve core with a through hole in the prior art, by directly deflecting the spherical valve core, a part of area of the through hole on the spherical valve core is sealed by the inner wall of a ball valve shell, so that the output quantity of the ball valve is changed, in the prior art, the path of fluid is synchronously changed, in the fully opened state, the path of fluid is a straight line, after the spherical valve core is deflected, the path of fluid needs to be twisted for a plurality of times, and meanwhile, the size of the cross section of the fluid is changed for a plurality of times, so that phenomena such as turbulent flash cavitation and the like occur, and noise is generated;
The vertical cross section of fluid channel is the triangle-shaped that two symmetries set up, when the ball valve changes from closed state to open state, one side of two lamella is laminated each other, and then driving motor starts, and the control lamella is deflected with spheroidal axis, along with two lamella laminating side wall face mutual separation, triangle-shaped's area increase of passing through the cross-section, and then realize the accurate control to the passing through flow.
Further, the electric control mechanism comprises a driving motor, a gear set and an arc-shaped rack, wherein the driving motor is connected with the shell, the driving motor is connected with the gear set through a coupler, the arc-shaped rack is positioned at two sides of the gear set, the arc-shaped rack is meshed with the gear set, and the arc-shaped rack is connected with the flap;
The upper end and the lower end of the sphere are provided with connecting shafts, the sphere is connected with the shell through the connecting shafts, the connecting shafts positioned above are hollow, gear sets and arc racks are arranged in the connecting shafts, the upper ends of the flaps penetrate through the outer walls of the connecting shafts and are connected with the arc racks, the arc racks are in sliding connection with the connecting shafts, the gear sets are rotationally connected with the connecting shafts, each gear set consists of two gears with the same size, when the driving motor rotates, the two gears synchronously and reversely deflect, the output end of the driving motor is connected with the gear sets through a coupler, and the driving motor is connected with the shell;
When the ball valve needs to change the output quantity of fluid, or when the ball valve is opened and closed, the output shaft of the driving motor rotates forwards or reversely, the driving motor drives the flap to deflect through the gear set and the arc-shaped rack, the deflected flap covers one end of the fluid channel, and the coverage area of the flap on the fluid channel is changed, so that the output quantity of the fluid output in the ball valve is changed.
Further, a strip-shaped plate is arranged on one side of the petal, the strip-shaped plate is connected with the petal through a spring and a voltage-variable resistor, the strip-shaped plate is arranged in a gap between the sphere and the shell, a plurality of through holes are formed in the strip-shaped plate, and the strip-shaped plate is connected with the arc-shaped rack;
The strip-shaped plate is arranged at the flap and is close to the input end of the ball valve, when the ball valve is in an open state, one side of the ball body and one side of the flap are filled with fluid instantly, the fluid can contact with the flap through the through hole due to the through hole arranged on the strip-shaped plate, and the pressure is carried by the fluid to further directly act on the flap due to the fact that the flap is connected with the strip-shaped plate through the spring;
When the pressure in the fluid acts on the petals, the fluid pushes the petals to deflect by the central axis of the sphere, the petals are forced to move to the side where the output end of the shell is located until the side wall surfaces of the two petals, which are close to the output end of the shell, are mutually attached, and at the moment, the deflected petals completely seal the fluid channel, so that the ball valve is in a disconnected state;
The valve disc and the strip-shaped plate are connected through the spring, a round hole is formed in one side of the valve disc, one end of the spring is positioned in the round hole, the spring is contained in the round hole under the action of no external force, the spring is electrically connected with the control center, the control center changes the expansion strength of the spring by changing the current strength passing through the spring, the valve disc deflects under the action of the fluid pressure, and when the fluid pressure of the input end is overlarge, the valve disc can actively disconnect the fluid movement in the ball valve, and the contraction state of the spring is changed by changing the current strength passing through the spring, so that the maximum fluid pressure passing through the ball valve is changed;
The junction of spring and strip shaped plate is provided with the piezoresistor, and the piezoresistor can take place deformation under fluid pressure, electric connection between piezoresistor and the control center simultaneously, and during the piezoresistor took place deformation, the pressure acted on the piezoresistor, the inside resistance element of piezoresistor can take place physical deformation because of mechanical stress, and this then influences the resistivity of resistance material, and control center is through judging the circuit resistance value that the piezoresistor is located, and then judges the fluid pressure of ball valve input.
Further, the passing section of the fluid channel close to the input end is smaller than the passing section of the middle part of the fluid channel, an arc-shaped groove is formed in one side of the middle part of the sphere close to the input end of the shell, the arc-shaped groove is separated from the fluid channel, and the fluid channel is symmetrical to the central axis of the arc-shaped groove in the front-back direction;
an electric control water outlet valve is arranged at one side, close to the input end, below the shell, and the upper end of the electric control water outlet valve is communicated with the arc-shaped groove;
When fluid passes through the ball valve, as the input end of the fluid channel is provided with a plurality of tiny through holes, when the fluid carries impurities, the impurities larger than the through holes are limited by the input end of the fluid channel, and the impurities on one side of the input end of the fluid channel are continuously increased, so that the pressure of the input end and the output end in the ball valve is continuously increased;
The strip-shaped plate can be controlled to deflect through the electric control mechanism, the strip-shaped plate slides along the outer wall surface of the sphere, impurities on the surface of the sphere are gathered in the movement process of the strip-shaped plate, the strip-shaped plate drives the flap to synchronously move along with the deflection of the strip-shaped plate until the impurities on the surface of the sphere are pushed into the arc-shaped groove, the spring between the strip-shaped plate and the flap simultaneously passes through the maximum current strength, the strip-shaped plate and the flap are completely attached, when the strip-shaped plate pushes the impurities into the arc-shaped groove, the flap synchronously seals the input end of the fluid channel, then the electric control water outlet valve below the shell is opened, fluid in the pipeline can leave through the arc-shaped groove and the electric control water outlet valve, the fluid forms flow in the arc-shaped groove, and the fluid in the flowing state can drive the impurities to leave through the electric control water outlet valve, so that the impurities inside the shell can be cleaned.
Further, the ball body is composed of a guide ring and a circular disc, a plurality of through holes are formed in two sides of the guide ring, the circular disc is located in the middle of the guide ring, and the circular disc partitions the through holes into an upper part and a lower part;
The flow channel inside the ball body is optimized, so that fluid can be received by the flow channel from the flow guide ring and the wafer when passing through the ball body, the fluid is blocked by the flow guide ring and the wafer, the fluid is filled in the inner space of the ball body by reducing the flow velocity of the fluid, the phenomenon that the fluid is subjected to turbulent flash evaporation cavitation and the like after leaving the ball body is avoided, the noise caused when the fluid passes through the ball valve is reduced, and cavitation erosion inside the ball valve and the pipeline is avoided, so that the ball valve and the pipeline are damaged.
Further, the ball body also comprises reeds, the reeds are connected with the wafer through a spring shaft, a plurality of reeds are arranged on the upper side and the lower side of the wafer, and the reeds are wavy;
the arrangement of the reed inside the sphere, the outer wall of the reed is wavy, when fluid passes through the inside of the sphere, the reed and the fluid are continuously guided, and in the fluid guiding process, the kinetic energy in the fluid is continuously absorbed, so that the impact of high-pressure and high-speed flowing fluid on the inner wall of the sphere and the inner wall of the pipeline is reduced.
Further, a plurality of cylinders are arranged on one side, close to the output end, of the shell, the size of each cylinder is sequentially increased from one side, close to the input end, of the shell to one side, close to the output end, of the shell, the cylinders are concentrically arranged, and a plurality of through holes are formed in the outer wall of each cylinder;
the setting of a plurality of drum and drum surface through-hole set up, and the fluid is after leaving the spheroid, because of through cross-section increase in the twinkling of an eye, and the space atmospheric pressure that the fluid is located reduces in the twinkling of an eye, and the through-hole on drum mating surface carries out further restriction to the velocity of flow of the fluid that leaves the ball valve for the fluid is limited between spheroid and drum after leaving the spheroid, avoids atmospheric pressure to reduce and appears the flash distillation phenomenon, further noise reduction's production.
Furthermore, one side of the cylinder, which is close to the output end of the shell, is provided with spoilers, the cylinders are connected through spring rods, and a plurality of spoilers form a partition plate after being overlapped;
a limiting ring is arranged on one side of the shell, which is close to the output end, and the limiting ring and the partition plate are matched with each other to seal the output end of the shell, and adjacent contact surfaces of the limiting ring and the flow blocking plate are inclined surfaces;
The cylinders are connected through the springs and the piezoelectric plates, the flow blocking plates positioned at the middle part are circular, the flow blocking plates at the outer sides are circular, when the pressure of the output end of the ball valve is high, fluid can impact on the flow blocking plates until a plurality of flow blocking plates are mutually overlapped, and meanwhile, the plurality of flow blocking plates are contacted with the limiting rings, so that the output end of the ball valve is sealed, and the overlarge pressure of the fluid output by the ball valve is avoided;
The spring rod is arranged, the spring rod is composed of a hollow round rod and an internal spring, one end of the hollow round rod is connected with the inner wall of the shell, the cylinder is connected with the hollow round rod in a sliding mode, the spring inside the spring rod is electrically connected with the control center, the control center changes the expansion strength of the spring through changing the current strength of the spring, during the use period of the ball valve, the current strength of the spring is changed, the shrinkage state of the spring is changed, and the maximum fluid pressure leaving the ball valve is changed.
Compared with the prior art, the invention has the following beneficial effects:
Through the setting of spheroid and lamella, optimize fluid passageway for the fluidic route of passing through need not to carry out the wide-angle deflection, fluidic route of marcing is roughly straight line, avoids the fluidic through-section to take place great difference in the short time, and spheroid inner structure's setting simultaneously, through slowing down the fluid at the inside velocity of motion of spheroid, in order to avoid the fluid to have the high-pressure environment to get into the low pressure environment in the short time, the phenomenon such as turbulent flash evaporation cavitation appears, and then produce the noise, cooperation strip shaped plate and drum simultaneously carries out the depressurization processing at the input and the output of ball valve, further reduces the noise intensity that the fluid produced when passing through the ball valve, avoid the ball valve to lead to life weak point because of high-frequency vibrations.
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 perspective view of the present invention;
FIG. 2 is a left side elevational schematic of the present invention;
FIG. 3 is a schematic view of the present invention in front elevational view in full section;
FIG. 4 is a schematic view of a sphere fluid structure of the present invention;
FIG. 5 is a schematic top view of the petals and spheres of the present invention;
FIG. 6 is an enlarged schematic view of the structure of FIG. 5A in accordance with the present invention;
FIG. 7 is a schematic top view of a full section of the sphere of the present invention;
FIG. 8 is a schematic perspective view of a cylinder, circular plate and stop collar according to the present invention.
The device comprises a shell 1, an electric control mechanism 2, a gear set 202, an arc-shaped rack 3, a sphere 301, an arc-shaped groove 302, a guide ring 303, a wafer 304, a reed 4, a flap 401, a strip-shaped plate 5, a cylinder 501, a flow blocking plate 502 and a limiting ring.
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.
Referring to fig. 1-8, the invention provides a technical scheme that an adjusting ball valve with the functions of reducing pressure and noise comprises a shell 1, an electric control mechanism 2 is arranged above the shell 1, a sphere 3 and a flap 4 are arranged in the shell 1, the flap 4 is arc-shaped, a fluid channel is arranged in the middle area of the sphere 3, the vertical section of the fluid channel is in a symmetrical triangle, the height of a passing section of one side of the fluid channel, which is close to the horizontal center line of the shell 1, is smaller than that of one side, which is far away from the horizontal center line of the shell 1, and the passing section of the fluid channel, which is close to the input end, is smaller than that of the middle part of the fluid channel;
The flap 4 is positioned in a gap between the sphere 3 and the shell 1, one side, close to the input end of the shell 1, of the middle part of the sphere 3 is provided with an arc-shaped groove 301, the arc-shaped groove 301 is separated from a fluid channel, and the fluid channel is symmetrical to the central axis of the arc-shaped groove 301 in the front-back direction;
The sphere 3 is composed of a guide ring 302 and a circular sheet 303, a plurality of through holes are formed in two sides of the guide ring 302, the circular sheet 303 is positioned in the middle of the guide ring 302, and the circular sheet 303 partitions the through holes into an upper part and a lower part;
the ball body 3 also comprises a reed 304, the reed 304 is connected with the circular sheet 303 through a spring shaft, a plurality of reeds 304 are arranged on the upper side and the lower side of the circular sheet 303, and the reeds 304 are wavy;
an electric control water outlet valve is arranged at one side, close to the input end, of the lower part of the shell 1, and the upper end of the electric control water outlet valve is communicated with the arc-shaped groove 301;
a strip-shaped plate 401 is arranged on one side of each flap 4, the strip-shaped plate 401 is connected with the flap 4 through a spring and a voltage-variable resistor, the strip-shaped plate 401 is arranged in a gap between the sphere 3 and the shell 1, a plurality of through holes are formed in the strip-shaped plate 401, and the strip-shaped plate 401 is connected with the arc-shaped rack 202;
The electric control mechanism 2 comprises a driving motor, a gear set 201 and an arc-shaped rack 202, wherein the driving motor is connected with the shell 1, the driving motor is connected with the gear set 201 through a coupler, the arc-shaped rack 202 is positioned at two sides of the gear set 201, the arc-shaped rack 202 is connected with the gear set 201 in a meshed manner, the arc-shaped rack 202 is connected with the valve sheet 4, and the electric control mechanism 2 is used for changing the deflection angle of the valve sheet 4 relative to the sphere 3 so as to seal one end of the fluid channel;
A plurality of cylinders 5 are arranged on one side, close to the output end, of the shell 1, the size of each cylinder 5 is sequentially increased from one side, close to the input end of the shell 1, to one side, close to the output end of the shell 1, of each cylinder 5, the cylinders 5 are concentrically arranged, and a plurality of through holes are formed in the outer wall of each cylinder 5;
the side of the cylinder 5, which is close to the output end of the shell 1, is provided with spoilers 501, the cylinders 5 are connected through spring rods, and a plurality of spoilers 501 are overlapped to form a partition plate;
A limiting ring 502 is arranged on one side of the shell 1, which is close to the output end, the limiting ring 502 is matched with the partition plate to seal the output end of the shell 1, and adjacent contact surfaces of the limiting ring 502 and the spoiler 501 are inclined surfaces;
The setting of spheroid 3 and lamella 4 optimizes the fluid passageway for the fluid's route of passing through need not to carry out the wide-angle deflection, and the route of travel of fluid is roughly straight line, avoids the big difference of fluid's cross-section to take place in the short time, and the setting of spheroid 3 inner structure simultaneously, through slowing down the fluid at the inside velocity of motion of spheroid 3, in order to avoid the fluid to have the high-pressure environment to get into low-pressure environment in the short time, lead to appearing turbulent flash evaporation cavitation scheduling phenomenon, and then produce the noise, cooperate strip 401 and drum 5 simultaneously, carry out the depressurization processing at the input and the output of ball valve, further reduce the noise intensity that the fluid produced when passing through the ball valve, avoid the ball valve to lead to life weak point because of high-frequency vibrations.
The working principle of the invention is as follows:
before the ball valve is used, the ball valve is required to be installed, flanges are arranged on two sides of the shell 1, the ball valve is connected with pipelines through the flanges, then the ball valve is put into use, during the use of the ball valve, fluid enters the ball valve from the pipelines, then the fluid passes through a ball body 3 in the middle of the ball valve, a fluid channel is formed in the middle area of the ball body 3, and the orientation of the fluid channel is the same as that of the pipelines on two sides of the ball valve;
Wherein a flap 4 is arranged between the shell 1 and the sphere 3, one end of the flap 4 is connected with the electric control mechanism 2, the electric control mechanism 2 is used for controlling the deflection state of the flap 4, during the operation of the electric control mechanism 2, the electric control mechanism 2 drives the half disc 2 to rotate by taking the central axis of the sphere 3 as the center of a circle, the shell 1 and the sphere 3 are fixedly connected, the size of the inner wall of the flap 4 is matched with the size of the outer wall of the sphere 3, after the flap 4 deflects, the inner wall of the flap 4 seals one side of the fluid channel, and the flap 4 further limits the flow volume passing through the ball valve by changing the input end or the output end covering one side of the fluid channel;
Compared with a spherical valve core with a through hole in the prior art, by directly deflecting the spherical valve core, a part of area of the through hole on the spherical valve core is sealed by the inner wall of a ball valve shell, so that the output quantity of the ball valve is changed;
the vertical section of the fluid channel is two symmetrically arranged triangles, when the ball valve is converted into an open state from a closed state, one sides of the two flaps 4 are mutually attached, then the driving motor is started to control the flaps 4 to deflect by the central axis of the sphere 3, and the area of the triangular passing section is increased along with the mutual separation of the two flaps 4 attached to a side wall surface, so that the accurate control of the passing flow is realized;
The upper end and the lower end of the sphere 3 are provided with connecting shafts, the sphere 3 is connected with the shell 1 through the connecting shafts, the connecting shafts positioned above are hollow, a gear set 201 and an arc-shaped rack 202 are arranged in the connecting shafts, the upper ends of the flaps 4 penetrate through the outer wall of the connecting shafts and are connected with the arc-shaped rack 202, the arc-shaped rack 202 is in sliding connection with the connecting shafts, the gear set 201 is rotationally connected with the connecting shafts, the gear set 201 is composed of two gears with the same size, when a driving motor rotates, the two gears synchronously and reversely deflect, the output end of the driving motor is connected with the gear set 201 through a coupler, and the driving motor is connected with the shell 1;
When the ball valve needs to change the output quantity of fluid or is opened and closed, the output shaft of the driving motor rotates forwards or reversely, the driving motor drives the valve flaps 4 to deflect through the gear set 201 and the arc-shaped rack 202, the deflected valve flaps 4 cover one end of the fluid channel, and the coverage area of the valve flaps 4 to the fluid channel is changed to change the output quantity of the fluid output in the ball valve;
The strip-shaped plate 401 is arranged on the flap 4 near the input end of the ball valve, when the ball valve is in an open state, one side of the ball body 3 and one side of the flap 4 are instantly filled with fluid, and because the strip-shaped plate 401 is provided with a through hole, the fluid can be contacted with the flap 4 through the through hole, and because the fluid is accompanied with a certain pressure, the pressure further acts on the flap 4 directly, and because the flap 4 is connected with the strip-shaped plate 401 through a spring;
when the pressure in the fluid acts on the petals 4, the fluid pushes the petals 4 to deflect by the central axis of the sphere 3, the petals 4 are forced to move to the side where the output end of the shell 1 is positioned until the side wall surfaces of the two petals 4, which are close to the output end of the shell 1, are mutually attached, and at the moment, the deflected petals 4 completely seal the fluid channel, so that the ball valve is in a disconnected state;
The valve piece 4 is connected with the strip-shaped plate 401 through a spring, a round hole is formed in one side of the valve piece 4, one end of the spring is positioned in the round hole, the spring is contained in the round hole under the action of no external force, the spring is electrically connected with the control center, the control center changes the expansion strength of the spring by changing the current strength passing through the spring, the valve piece 4 deflects under the action of the fluid pressure, when the fluid pressure of the input end is overlarge, the valve piece 4 can actively disconnect the fluid movement in the ball valve, and the contraction state of the spring is changed by changing the current strength passing through the spring, so that the maximum fluid pressure passing through the ball valve is changed;
The connection part of the spring and the strip-shaped plate 401 is provided with a piezoresistor, the piezoresistor can deform under the action of fluid pressure, meanwhile, the piezoresistor is electrically connected with a control center, when the piezoresistor deforms, the pressure acts on the piezoresistor, a resistance element in the piezoresistor can physically deform due to mechanical stress, the resistivity of a resistance material is further influenced, and the control center judges the fluid pressure at the input end of the ball valve by judging the resistance value of a circuit where the piezoresistor is positioned;
When fluid passes through the ball valve, as the input end of the fluid channel is provided with a plurality of tiny through holes, when the fluid carries impurities, the impurities larger than the through holes are limited by the input end of the fluid channel, and the impurities on one side of the input end of the fluid channel are continuously increased, so that the pressure of the input end and the output end in the ball valve is continuously increased;
At this time, the strip-shaped plate 401 can be controlled to deflect through the electric control mechanism, the strip-shaped plate 401 slides along the outer wall surface of the sphere 3, impurities on the surface of the sphere 3 are gathered in the movement process of the strip-shaped plate 401 until the impurities on the surface of the sphere 3 are pushed into the arc-shaped groove 301, simultaneously, the strip-shaped plate 401 drives the valve flaps 4 to synchronously move along with the deflection of the strip-shaped plate 401, and the springs between the strip-shaped plate 401 and the valve flaps 4 simultaneously introduce maximum current strength, so that the strip-shaped plate 401 and the valve flaps 4 are completely attached, when the strip-shaped plate 401 pushes the impurities into the arc-shaped groove 301, the valve flaps 4 synchronously seal the input end of a fluid channel, then an electric control water outlet valve below the shell 1 is opened, fluid inside the pipeline can leave through the arc-shaped groove 301 and the electric control water outlet valve, the fluid in a flowing state can drive the impurities to leave through the electric control water outlet valve, and then the self-cleaning work of the impurities inside the shell 1 is realized;
the guide ring 302 and the circular sheet 303 are matched with each other, and as the flow channel in the ball 3 is optimized, when fluid passes through the ball 3, the fluid can be received by the guide ring 302 and the circular sheet 303, and under the obstruction of the guide ring 302 and the circular sheet 303, the fluid is filled in the inner space of the ball 3 by reducing the flow velocity of the fluid, so that the phenomenon that the fluid is subjected to turbulent flash evaporation cavitation and the like after leaving the ball 3 is avoided, the noise caused when the fluid passes through the ball valve is reduced, and cavitation in the ball valve and the pipeline caused by cavitation is avoided, and the ball valve and the pipeline are damaged;
The reed 304 in the sphere 3 is arranged, the outer wall of the reed 304 is wavy, when fluid passes through the inside of the sphere 3, the reed 304 and the fluid are continuously guided, and in the fluid guiding process, the kinetic energy in the fluid is continuously absorbed, so that the impact of high-pressure and high-speed flowing fluid on the inner wall of the sphere 3 and the inner wall of a pipeline is reduced;
The arrangement of the cylinders 5 and the arrangement of the through holes on the surfaces of the cylinders 5, and the through holes on the matched surfaces of the cylinders 5 further limit the flow rate of the fluid leaving the ball valve because the space air pressure of the fluid is instantaneously reduced due to the instantaneous increase of the passing cross section after the fluid leaves the ball body 3, so that the fluid is limited between the ball body 3 and the cylinders 5 after leaving the ball body 3, the flash evaporation phenomenon caused by the air pressure reduction is avoided, and the noise is further reduced;
The cylinders 5 are connected through springs and piezoelectric plates, wherein the flow blocking plates 501 at the middle part are circular, the flow blocking plates 501 at the outer side are circular, when the pressure of the output end of the ball valve is high, fluid can impact on the flow blocking plates 501 until a plurality of flow blocking plates 501 are mutually overlapped, and meanwhile, a plurality of flow blocking plates 501 are contacted with a limiting ring 502, so that the output end of the ball valve is sealed, and the overlarge pressure of the fluid output by the ball valve is avoided;
The setting of spring rod, the spring rod comprises cavity round bar and inside spring, and the one end of cavity round bar is connected with the inner wall of shell 1, sliding connection between drum 5 and the cavity round bar, electric connection between spring and the control center of spring rod inside, and the control center is through changing the current intensity through the spring, and then changes the flexible intensity of spring, and during the ball valve use, the current intensity through the spring is changed, and then changes the shrink state of spring, and then changes the biggest fluid pressure who leaves the ball valve.
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.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. 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 (5)
1. An adjustable ball valve with a pressure reducing and noise reducing function comprises a shell (1) and is characterized in that an electric control mechanism (2) is arranged above the shell (1), a sphere (3) and a flap (4) are arranged in the shell (1), the flap (4) is in a circular arc shape, a fluid channel is formed in the middle area of the sphere (3), the flap (4) is located in a gap between the sphere (3) and the shell (1), and the electric control mechanism (2) is used for changing the deflection angle of the flap (4) relative to the sphere (3) so as to seal one end of the fluid channel;
The vertical section of the fluid channel is in a symmetrical triangle shape, and the height of the passing section of the fluid channel on the side close to the horizontal center line of the shell (1) is smaller than that of the passing section on the side far from the horizontal center line of the shell (1);
The electric control mechanism (2) comprises a driving motor, a gear set (201) and an arc-shaped rack (202), wherein the driving motor is connected with the shell (1), the driving motor is connected with the gear set (201) through a coupler, the arc-shaped rack (202) is positioned at two sides of the gear set (201), the arc-shaped rack (202) is meshed with the gear set (201), and the arc-shaped rack (202) is connected with the flap (4);
One side of each flap (4) is provided with a strip-shaped plate (401), the strip-shaped plates (401) are connected with the flaps (4) through springs and voltage-variable resistors, the strip-shaped plates (401) are arranged in gaps between the sphere (3) and the shell (1), the strip-shaped plates (401) are provided with a plurality of through holes, and the strip-shaped plates (401) are connected with the arc-shaped racks (202);
The passage section of the fluid channel close to the input end is smaller than the passage section of the middle part of the fluid channel, an arc-shaped groove (301) is formed in one side of the middle part of the sphere (3) close to the input end of the shell (1), the arc-shaped groove (301) is separated from the fluid channel, and the fluid channel is symmetrical to the central axis of the arc-shaped groove (301) in the front-back direction;
an electric control water outlet valve is arranged at one side, close to the input end, below the shell (1), and the upper end of the electric control water outlet valve is communicated with the arc-shaped groove (301);
The upper end and the lower end of the sphere (3) are provided with connecting shafts, the sphere (3) is connected with the shell (1) through the connecting shafts, the connecting shafts positioned above the sphere are hollow, gear sets (201) and arc racks (202) are arranged inside the connecting shafts, the upper ends of the flaps (4) penetrate through the outer walls of the connecting shafts and are connected with the arc racks (202), the arc racks (202) are in sliding connection with the connecting shafts, the gear sets (201) are rotationally connected with the connecting shafts, the gear sets (201) are composed of two gears with the same size, when the driving motor rotates, the two gears synchronously and reversely deflect, the output ends of the driving motor are connected with the gear sets (201) through couplings, and the driving motor is connected with the shell (1).
2. The adjustable ball valve with the pressure reducing and noise reducing functions according to claim 1, wherein the ball body (3) is composed of a guide ring (302) and a circular sheet (303), a plurality of through holes are formed in two sides of the guide ring (302), the circular sheet (303) is located in the middle of the guide ring (302), and the circular sheet (303) partitions the through holes into an upper portion and a lower portion.
3. The adjustable ball valve with the pressure reducing and noise reducing functions of claim 2, wherein the ball body (3) is internally provided with a reed (304), the reed (304) is connected with a circular plate (303) through a spring shaft, a plurality of reeds (304) are arranged on the upper side and the lower side of the circular plate (303), and the reeds (304) are in a wave shape.
4. The adjustable ball valve with the pressure reducing and noise reducing functions is characterized in that a plurality of cylinders (5) are arranged on one side, close to an output end, of the shell (1), the size of each cylinder (5) is sequentially increased from one side, close to the input end, of the shell (1) to one side, close to the output end, of the shell (1), the cylinders (5) are concentrically arranged, and a plurality of through holes are formed in the outer wall of each cylinder (5).
5. The adjustable ball valve with the pressure reducing and noise reducing functions according to claim 4, wherein one side of the cylinder (5) close to the output end of the shell (1) is provided with spoilers (501), the cylinders (5) are connected through spring rods, and a plurality of spoilers (501) form a partition plate after being overlapped;
One side of the shell (1) close to the output end is provided with a limiting ring (502), the limiting ring (502) and the partition plate are matched with each other to seal the output end of the shell (1), and adjacent contact surfaces of the limiting ring (502) and the spoiler (501) are inclined surfaces.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101301528B1 (en) * | 2013-02-21 | 2013-09-04 | 주식회사 신정기공 | Ball valve |
| CN215522040U (en) * | 2021-06-03 | 2022-01-14 | 无锡市亚迪流体控制技术有限公司 | Throttling and noise-reducing adjusting ball valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8141843B2 (en) * | 2008-12-31 | 2012-03-27 | Dresser, Inc. | Fluid control valve |
| CN112901814B (en) * | 2021-01-19 | 2022-12-16 | 欧拉姆阀门科技有限公司 | Anti-cavitation sphere with honeycomb structure |
| CN113883298B (en) * | 2021-09-18 | 2024-01-26 | 上海阀特流体控制阀门有限公司 | Ball valve |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101301528B1 (en) * | 2013-02-21 | 2013-09-04 | 주식회사 신정기공 | Ball valve |
| CN215522040U (en) * | 2021-06-03 | 2022-01-14 | 无锡市亚迪流体控制技术有限公司 | Throttling and noise-reducing adjusting ball valve |
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