CN112128426B - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN112128426B CN112128426B CN201910550051.4A CN201910550051A CN112128426B CN 112128426 B CN112128426 B CN 112128426B CN 201910550051 A CN201910550051 A CN 201910550051A CN 112128426 B CN112128426 B CN 112128426B
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- valve
- channel
- opening
- wall
- bottom wall
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- 230000013011 mating Effects 0.000 claims description 43
- 238000004891 communication Methods 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 17
- 238000007789 sealing Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003466 welding 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/087—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
- F16K11/0873—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle
- F16K11/0876—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle one connecting conduit having the same axis as the spindle
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a ball valve, wherein a first valve core of the ball valve is provided with a throttling channel and a conducting channel, the throttling channel and the conducting channel are not communicated, the opening length of the throttling channel is longer than the bottom wall length of the throttling channel, and the ball valve is convenient to process and shape.
Description
[ field of technology ]
The present invention relates to the field of fluid management.
[ background Art ]
In general, ball valves are a common component of thermal management systems, however, the machining of the spool of ball valves is relatively complex.
[ invention ]
The object of the present invention is to provide a ball valve which is advantageous for solving the above-mentioned problems.
A ball valve comprising a first valve spool and a valve body, the ball valve having a first cavity, the first valve spool being located in the first cavity; the ball valve comprises a first flow passage and a second flow passage, the first flow passage is formed on the valve body, and the first flow passage is provided with an opening on the wall of the first cavity;
the ball valve further comprises a first valve seat, the first valve seat is provided with a first valve seat matching surface, a first opening of the second flow channel is formed on the first valve seat matching surface, the first valve seat matching surface is circumferentially distributed along the first opening of the second flow channel, and the first valve seat matching surface is dynamically sealed with the outer wall of the first valve core;
the first valve core is provided with a throttling channel, the throttling channel is sunken relative to the outer wall of the first valve core, the throttling channel is provided with an opening on the outer wall of the first valve core, and in at least one working position of the first valve core, the first cavity is communicated with the first opening of the second flow channel through the throttling channel;
the bottom wall of the throttling channel comprises a first bottom wall and a second bottom wall, the first bottom wall and the second bottom wall are intersected, the opening length of the throttling channel is larger than the length of the first bottom wall along the action direction of the first valve core, and the opening length of the throttling channel is larger than the length of the second bottom wall.
The ball valve comprises a first valve core, the first valve core is located in the first cavity, a throttling channel of the first valve core is provided with two bottom walls, namely a first bottom wall and a second bottom wall, the opening length of the throttling channel is larger than that of the first bottom wall, and the opening length of the throttling channel is larger than that of the second bottom wall, so that the throttling channel can be conveniently machined and formed.
[ description of the drawings ]
FIG. 1 is a schematic perspective view of a first embodiment of a ball valve;
FIG. 2 is a schematic elevational view of the structure of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the first embodiment of FIG. 2 along A-A;
FIG. 4 is a schematic cross-sectional view of the first embodiment of FIG. 2 along B-B;
FIG. 5 is a schematic perspective view of a first view of the planetary assembly;
FIG. 6 is a schematic perspective view of a second view of the planetary assembly;
FIG. 7 is a schematic perspective view of a first valve seat;
fig. 8 is a schematic perspective view of a first embodiment of a first valve element;
FIG. 9 is a schematic cross-sectional view of FIG. 8 taken along line D-D;
FIG. 10 is an enlarged schematic view of region C of FIG. 9;
fig. 11 is a schematic perspective view of a second view of the first embodiment of the first valve element;
FIG. 12 is a schematic view of a projection of a first embodiment of a throttle passage, valve seat mating surface on a first face;
FIG. 13 is a schematic view of a projection of a second embodiment of a throttle passage, valve seat mating surface on a first face;
FIG. 14 is a partial schematic view of FIG. 3;
FIG. 15 is a schematic view of the first spool in a first operational position;
FIG. 16 is a schematic illustration of the first spool in a second operational position;
FIG. 17 is a schematic illustration of the first spool in a third operational position;
FIG. 18 is a schematic illustration of the first spool in a fourth operating position;
fig. 19 is a schematic perspective view of a second embodiment of the first valve element;
FIG. 20 is a schematic cross-sectional view of the second embodiment of FIG. 2 along B-B;
fig. 21 is a schematic cross-sectional view of the third embodiment of fig. 2 along B-B.
[ detailed description ] of the invention
Referring to fig. 1-18, a ball valve 10 includes a control portion, a transmission device 2000, a valve body 3000 and a first valve core 5000, in the technical scheme of this embodiment, the control portion is a driving mechanism 1000, the transmission device 2000 is located between the driving mechanism 1000 and the valve body 3000, the driving mechanism 1000 includes a motor portion 1100, a sleeve 1200 and a connection seat 1300, one end of the connection seat 1300 is fixedly connected with the sleeve 1200 and is sealed at the connection position, the motor portion 1100 includes a stator 1110, a motor shaft 1130 and a rotor 1120, the stator 1110 is sleeved outside the sleeve 1200, the rotor 1120 is fixedly connected with the motor shaft 1130, at least part of the rotor 1120 is located inside the sleeve 1200, the motor shaft 1130 passes through a through hole of the connection seat 1300, and after being electrified, the rotor 1120 is driven to rotate by electromagnetic force of an excitation magnetic field generated by the stator so as to drive the motor shaft 1130 to rotate. The transmission 2000 includes a gear case 2100, a planetary assembly 2200, and a valve rod 2300, one end of the gear case 2100 has a step fixedly connected with the connection seat 1300, the step is formed with a step hole, the connection seat 1300 is screwed with the step or welded and sealed, and of course, a sealing member may be disposed at the connection position when the connection seat 1300 is screwed with the step to improve sealing performance. The other end of the gear case 2100 is fixedly connected with the valve body 3000, and the gear case 2100 and the valve body 3000 can be welded and sealed, or can be connected in a threaded manner and provided with a sealing element at the connecting position. The planetary assembly 2200 is located in a cavity formed by the gear case 2100, or the planetary assembly 2200 is located in a cavity formed by the gear case 2100, the connection seat 1300 and/or the valve body 3000, the planetary assembly 2200 includes a sun gear 2210, a plurality of planet gears 2220, a gear shaft, a first ring gear 2230, a second ring gear 2240 and two mounting plates 2250, in this embodiment, the planetary assembly 2200 includes three planet gears 2220, the three planet gears 2220 are in meshing connection with the sun gear 2210, the first ring gear 2230 and the second ring gear 2240 each have internal teeth, a portion of each planet gear 2220 is in meshing connection with the internal teeth of the first ring gear 2230, another portion of the planet gears 2220 are in meshing connection with the internal teeth of the second ring gear 2240, and an outer portion of the first ring gear 2230 is fixedly connected with the gear case 2100, such as the first ring gear 2230 is relatively fixed with the gear case 2100 in an interference fit or a limit fit. The planet 2220 and sun 2210 are located between the two mounting plates 2250, wherein the mounting plate 2250 adjacent to the drive mechanism 1000 is provided with a through hole through which the motor shaft passes, so as to facilitate the cooperation of the motor shaft with the sun 2210.
Referring to fig. 3-5, the second gear ring 2240 has a limiting portion 2241, the limiting portion 2241 is disposed on a side of the second gear ring 2240 facing the valve body 3000, in this embodiment, the limiting portion 2241 is formed as two arc-shaped grooves, the two arc-shaped grooves are symmetrically distributed along an axis of the second gear ring 2240, accordingly, the valve body is provided with limiting posts (not shown) matched with the limiting portion, similarly, the limiting posts are symmetrically distributed along an axis of the second gear ring 2240, the limiting posts are disposed in the arc-shaped grooves, two ends of the limiting portion can limit a rotation range of the second gear ring 2240, it can be known that a rotation range of the second gear ring 2240 can be limited by setting an arc angle between two ends of the limiting portion, and thus, a rotation range of the planetary 2220 wheel set can be limited, in this embodiment, the arc angle of the limiting portion is set to 90 °, and the arc angle of the limiting portion 2241 can be adaptively set according to different application environments. One end of the valve rod 2300 extends into the central hole of the second gear ring 2240, the valve rod 2300 and the second gear ring 2240 can be fixedly connected by interference fit or welding, and of course, the valve rod 2300 and the second gear ring 2240 can also be fixedly connected by injection molding.
When the ball valve works, when the motor shaft 1130 rotates, the sun gear 2210 rotates under the drive of the motor shaft 1130, the planetary gear 2220 rotates under the drive of the sun gear 2210 due to the meshing effect, the first gear ring 2230 is fixed, the planetary gear 2220 rotates around the axis of the planetary gear 2220 and also rotates circumferentially around the sun gear 2210, so that the second gear ring 2240 is driven to rotate, meanwhile, the valve rod 2300 also rotates along with the rotation of the second gear ring 2240, and the valve rod 2300 rotates within a certain range due to the mutual cooperation of the limiting part and the limiting post. The valve body 3000 includes a valve stem hole, a part of the valve stem 2300 is located in the valve stem hole, the valve stem 2300 is sealed with the valve stem Kong Dong, in addition, the ball valve may also include a shaft sleeve, the shaft sleeve is embedded in the valve stem hole and fixed with the valve stem hole, the valve stem 2300 is sleeved in the shaft sleeve, and the valve stem 2300 is sealed with the shaft sleeve in a moving manner.
Referring to fig. 3 and 4, the ball valve 10 includes a first chamber 100, a first flow channel 300, a second flow channel 400 and a third flow channel 500, and the first valve core 5000 can rotate in the first chamber 100, wherein the first flow channel 300 has a first connection port 1 on an outer wall of the valve body 3000, the first flow channel 300 has an opening on a wall of the first chamber, and further the first flow channel 300 is in communication with the first chamber 100, in this embodiment, the opening of the first flow channel 300 on the wall of the first chamber 100 and the valve rod 2300 are located on opposite sides of the first valve core 5000, and of course, the opening of the first flow channel 300 on the wall of the first chamber 100 may be located at other positions, which will not be described in detail. The second flow path 400 has a second connection port 2 at the outer wall of the valve body 3000, and the second flow path 400 can communicate with the first chamber 100; the third flow passage 500 can communicate with the first chamber 100, and the third flow passage 500 has a third connection port 3, and in this embodiment, the third connection port 3 is formed in the valve cover of the ball valve 10.
Referring to fig. 1, 3 and 4, the ball valve further includes a valve cover 4000, the valve body 3000 includes a first opening 3110, the first opening 3110 is recessed from one side wall of the valve body toward the interior of the valve body 3000, the first opening 3110 has an opening in the side wall of the valve body, at least a portion of the valve cover 4000 is located in the first opening 3110, the valve cover 4000 is fixedly disposed with the first opening 3110, specifically, the ball valve includes a connecting device including a connecting portion 4410 and a mating portion 3111, the connecting portion 4410 is formed on the valve cover 4000, the mating portion 3111 is formed on the first opening 3110, in a specific embodiment, the mating portion 3111 is formed with an internal thread at the first opening 3110, the connecting portion 4410 is formed with an external thread section at an outer wall of the valve cover 4000, and the internal thread of the first opening 3110 is mutually mated with the external thread of the valve cover 4000 to fix the valve cover 4000 with the first opening 3110. In other embodiments, the ball valve further includes a snap ring, the connecting portion is formed as a groove on the outer wall of the valve cover 4000, the mating portion is formed as a groove on the side wall of the first opening portion, and after the snap ring reaches a predetermined position, the snap ring opens to fix the valve cover and the valve body. It will be appreciated that the walls of the first chamber 100 include a portion of the wall of the first opening portion and the inner end wall of the valve cover, wherein the opening of the first flow passage 300 is located in the wall of the first opening portion 3110. The valve cover 4000 further comprises a first communication channel 4110, the third flow channel 500 comprising a first communication channel, or the first communication channel 4110 being at least part of the third flow channel 500, the first communication channel 4110 having an opening at the outer end 4010 of the valve cover, i.e. the second connection port 2, the first communication channel 4110 also having an opening at the inner end wall 4020 of the valve cover. The ball valve further includes a first space 4130 and a sealing member located in the first space 4130, the first space 4130 surrounding the circumferential side of the valve cover. In one embodiment, a first space 4130 is formed between the outer sidewall of the valve cover 4000 and the first opening 3110. In other embodiments, the first space 4130 may be formed as a groove on the outer side wall of the valve cover, the first space 4130 is circumferentially distributed along the outer side wall of the valve cover 4000, the sealing member is located in the first space of the valve cover 4000, and the groove, the sealing member and the first opening 3110 of the valve cover 4000 cooperate to seal the valve cover 4000 and the first opening 3110. In other embodiments, the first space 4130 in which the sealing member is disposed may be provided in the first opening 3110 to seal the valve cover 4000 and the first opening 3110. Of course, the valve cover 4000 and the first opening 3110 may be welded, sealed and fixed, and will not be described in detail.
Referring to fig. 3, 4 and 7-11, the ball valve 10 further includes a valve seat, specifically, the valve seat includes a first valve seat 6100 and a second valve seat 6200, the first valve core 5000 is in a spherical or spheroid structure, the first valve core 5000 may also be in a cylindrical structure, the first valve core 5000 includes a mating groove 5300 mated with the valve rod 2300, the valve rod 2300 can extend into the mating groove 5300, and the valve rod 2300 can drive the first valve core 5000 to rotate. Along the axial direction of the first opening 3110, the first valve core 5000 is disposed between the first valve seat 6100 and the second valve seat 6200, both the first valve seat 6100 and the second valve seat 6200 have mating surfaces that mate with the first valve core 5000, when the first valve core 5000 is spherical or spheroid, the valve seat mating surfaces are arc-shaped surfaces, and the valve seat mating surfaces may be convex toward the first valve core 5000 or concave toward the first valve core 5000. The outer wall of the first valve core 5000 is abutted with at least part of the matching surface 6120 of the first valve seat, the outer wall of the first valve core 5000 is abutted with at least part of the matching surface of the second valve seat 6200, the first valve core 5000 can slide relative to the matching surface 6120 of the first valve seat, the matching surface 6120 of the first valve core 5000 and the first valve seat are in dynamic seal, the first valve core 5000 can slide relative to the matching surface of the second valve seat 6200, and the matching surface of the first valve core 5000 and the second valve seat 6200 are in dynamic seal. It is understood that the wall forming the first chamber 100 includes the inner end wall of the valve cover 4000, the bottom wall of the first opening 3110 and a portion of the side wall of the first opening 3110, or the wall forming the first chamber 100 includes the inner end wall of the valve cover 4000, the bottom wall of the first opening 3110, a portion of the side wall of the first opening 3110, the first seat mating face 6120 and the mating face of the second seat 6200. Referring to fig. 3 and 6, the first valve seat 6100 has a channel 6110 penetrating the first valve seat, the third flow passage 500 includes a channel 6110 of the first valve seat, or the channel 6110 of the first valve seat is a part of the third flow passage 500, the channel 6110 of the first valve seat forms a first opening of the channel of the first valve seat on a mating surface 6120 of the first valve seat, that is, a first opening of the third flow passage 500, it can be known that the mating surface 6120 of the first valve seat is an annular surface, and the channel 6110 of the first valve seat has openings on both the mating surface and opposite sides of the mating surface, so that the channel 6110 of the first valve seat communicates with the first communication channel 4300. Likewise, the second valve seat 6200 has a passage extending through the second valve seat 6200, the passage of the second valve seat 6200 having openings on both the mating surface of the second valve seat 6200 and on opposite sides of the mating surface, wherein the passage of the second valve seat 6200 forms a first opening of the passage of the second valve seat 6200 on the mating surface of the second valve seat 6200. It is appreciated that the mating surface of the second valve seat 6200 is an annular surface and the passage of the second valve seat 6200 is capable of communicating with the second chamber 200.
The first valve seat 6100 may also be integrally provided with the valve cover 4000, where the integral arrangement includes being fixed as one piece and integrally formed. Specifically, the first valve seat 6100 is sealed and fixed integrally with the inner end wall of the valve cover 4000 or assembled and extruded integrally; more specifically, the inner end wall of the valve cap 4000 is shaped to seat the step of the first valve seat 6100, or at least a portion of the first valve seat 6100 is positioned at the step of the valve cap 4000, and the ball valve 10 may further provide a seal between the first valve seat 6100 and the step of the inner end of the valve cap 4000 to enhance the sealing of the first valve seat 6100 to the valve cap 4000. Likewise, the second valve seat is integrated with the first opening portion, including being fixed as a whole and integrally formed, the second valve seat 6200 is fixedly disposed with the first opening portion 3110, specifically, the second valve seat 6200 is sealingly fixed with the bottom wall of the first opening portion 3110, specifically, the bottom wall of the first opening portion 3110 is formed with a recess for accommodating the second valve seat 6200, and a seal member is disposed between the second valve seat 6200 and the bottom wall of the first opening portion 3110, so that sealing is enhanced, internal leakage is reduced, and thereby control accuracy is improved, and it should be noted here that the valve seat and the seal member may also be made as an integrated structure. In other embodiments, the first valve seat 6100 may be integrally formed with the valve cover 4000, or the valve cover 4000 may have the first valve seat 6100, and similarly, the second valve seat 6200 may be integrally formed with the valve body, and the second valve seat 6200 may be formed at the bottom wall of the first opening 3110. The ball valve is provided with the first valve seat 6100 and the second valve seat 6200, and the first valve seat 6100 and the second valve seat 6200 can play a supporting role on the first valve core 5000, and can also enable the contact part of the first valve seat 6100 and the second valve seat 6200 and the first valve core 5000 to be in sliding sealing.
Referring to fig. 3 and 4, in the present embodiment, the second flow channel 400 includes a channel of the second valve seat 6200, and the second flow channel 400 has an opening on the 6200 mating surface of the second valve seat, that is, a first opening of the second flow channel 400. The first opening of the second flow passage 400 and the first opening of the third flow passage 500 are located on both sides of the first spool 5000 in the axial direction of the first opening 3110, and the axial direction of the second flow passage 400 is parallel to the axial direction of the third flow passage 500.
Referring to fig. 3, 4 and 8-11, the first valve core 5000 includes a throttling channel 5100, in this embodiment, the throttling channel 5100 is shaped as a throttling groove, the throttling channel 5100 is recessed from an outer wall of the first valve core 5000, the throttling channel 5100 has an opening on the outer wall of the first valve core 5000, and when the ball valve throttles, for example, a first valve seat is taken as an example, an opening of a part of the throttling channel 5100 faces to a matching surface 6120 of the first valve seat 6100, or a wall forming the throttling channel 5100 includes a matching surface of the first valve seat 6100 and a wall forming the throttling groove. Referring to fig. 12 and 13 specifically, the throttle channel 5100 includes a head end and a tail end, where a first surface is defined and perpendicular to an axis of the first opening 3110, it can be known that a projection 6120 'of a mating surface 6120 of the first valve seat on the first surface is an annular surface, and when the ball valve throttles, a projection 5110' of the head end on the first surface and a projection 5120 'of the tail end on the first surface are located on two sides of a projection 6120' of the mating surface on the first surface, where two ends of a bottom wall of the head end and the tail end knuckle groove or two ends of the bottom wall extend into the throttle groove, so that the head end and the tail end of the throttle groove form an outlet and an inlet of the throttle channel 5100. In the present embodiment, the throttle passage 5100 has a rectangular cross-sectional shape; of course, the cross-sectional shape of the throttle passage 5100 may be V-shaped or other shapes, and the extending direction of the throttle passage 5100 may be substantially the same as the rotating direction of the first valve element 5000 or may be at other angles with the rotating direction of the first valve element 5000. Further, the throttling channel is shaped as a throttling groove, the throttling channel 5100 comprises a first segment, a second segment and a third segment, wherein the second segment comprises a tail end, the third segment comprises a head end, when the ball valve throttles, the opening of the first segment faces the matching surface 6120 of the first valve seat, the opening of the second segment faces the channel 6110 of the first valve seat, and the opening of the third segment faces the first cavity 100, so that fluid in the first cavity 100 enters the third flow channel after being throttled by the first segment. For ease of understanding, referring to 1210, the first segment projection 5130' is located on the first face of the projection 6120' of the first valve seat mating face, the second segment projection 5140' is located on the first face of the projection 6110' of the first valve seat passageway, and the third segment projection 5150' is located on the first face of the projection 6110' of the first valve seat passageway, thus relatively increasing the orifice of the orifice passageway to facilitate fluid entry into the orifice passageway, wherein the head end projection 5110' is located on the first chamber projection and the tail end projection 5120' is located on the projection 6110' of the first valve seat passageway. In another embodiment, referring to fig. 13, the projection 5150 'of the third segment on the first surface includes two portions, which are both located outside the projection 6120' of the mating surface, that is, the opening of the third segment faces the first chamber, the projection 5130 'of the first segment also includes two portions, which are both located on the projection 6120' of the mating surface, and the projection 5140 'of the second segment is located on the projection 6110' of the first valve seat channel, so that the fluid in the first chamber 100 enters the third flow channel 500 through two throttling paths, thereby increasing the throttling channel and improving the efficiency.
Referring to fig. 8-11, the throttling channel 5100 is shaped as a throttling groove, the wall of the throttling channel includes a first bottom wall 5110 and a second bottom wall 5120, the first bottom wall 5110 and the second bottom wall 5120 are intersected, and the 'intersected' refers to that the first bottom wall 5110 and the second bottom wall 5120 have a common intersection line or a common intersection area, and the common intersection area may be a rounding or chamfering between the first bottom wall 5110 and the second bottom wall 5120. In the direction of movement or rotation of the first valve spool 5000, the first bottom wall 5110 extends from the outer wall of the first valve spool to the second bottom wall 5120, the second bottom wall 5120 extends from the first bottom wall 5110 to the outer wall of the first valve spool 5000, it is understood that the wall of the head end of the throttle passage 5100 may be a portion of the first bottom wall 5110, the wall of the tail end of the throttle passage 5100 may be a portion of the second bottom wall 5120, of course, the wall of the head end of the throttle passage 5100 may be a portion of the second bottom wall 5120, and the wall of the tail end of the throttle passage 5100 may be a portion of the first bottom wall 5110. In this embodiment, the first bottom wall 5110 is an arc surface, and the first bottom wall 5110 is convex to be consistent with the opening of the throttling channel 5100, however, the first bottom wall may also be other shapes, such as a straight surface or a combination of a straight surface and an arc surface, which will not be described in detail. Referring to fig. 10, the second bottom wall 5120 includes a straight segment 5121 and a first arc segment 5122, the first arc segment 5122 extends from an outer wall of the first valve core 5000 to the straight segment 5120, and the straight segment 5121 is closer to the center of the first valve core 5000 than the first arc segment 5122 along the radial direction of the first valve core 5000. In other embodiments, the second bottom wall 5120 can also include only the first arc segment 5122, with the first arc segment 5122 extending from the outer wall of the first valve spool 5000 toward the first bottom wall 5110. The second bottom wall is provided with the first arc section 5122, so that the sharpness of the junction of the second bottom wall 5120 and the outer wall of the first valve core 5000 is reduced, and the abrasion of the first valve core to the matching surface of the valve seat can be relatively reduced. Likewise, the first bottom wall is provided with a second arc segment extending from the outer wall of the first valve core towards the second bottom wall, which will not be described in detail.
In this embodiment, in the rotation direction of the first valve core 5000, the opening length of the throttle channel 5100 is greater than the length of the first bottom wall 5110, the opening length of the throttle channel 5100 is greater than the length of the second bottom wall 5120, the opening of the throttle channel 5100 is longer than both the first bottom wall 5110 and the second bottom wall 5120, and the processing tool can conveniently move in the throttle channel, such as the processing tool can conveniently enter and exit the throttle channel, so that the processing tool can conveniently move in the throttle channel, and the processing forming difficulty of the first valve core is reduced. The walls of the throttling channel 5100 further comprise a first side wall 5130 and a second side wall, the first side wall 5130 and the second side wall are arranged oppositely, the first bottom wall 5110 is located between the first side wall 5130 and the second side wall, the second bottom wall 5120 is located between the first side wall 5130 and the second side wall, and an included angle between the surface of the first bottom wall 5110 and the surface of the first side wall 5130 can be 90 degrees or more or less than 90 degrees; likewise, the angle between the surface of the first bottom wall 5110 and the surface of the second side wall may be 90 ° or greater or less than 90 °. The first sidewall 5130 includes a first edge 5131 and a second edge 5132, wherein the first edge 5131 is also located on the outer wall of the first spool 5000, or the first edge 5131 is an intersection line or region of intersection of the outer wall of the first spool 5000 and the first sidewall 5130; the second edge 5132 is also located on the first bottom wall 5110, or the second edge 5132 is an intersection line or an intersecting area of the first bottom wall 5110 and the first side wall 5130, and in this embodiment, the arc center of the first edge 5131 and the arc center of the second edge 5132 are offset, so that the arc center of the first edge 5131 and the arc center of the second edge 5132 are offset, thereby facilitating the forming of the throttling channel 5100. Along the action direction of the first valve core 5000, the radial distance between the first edge 5131 and the second edge 5132 is reduced; in other words, the depth of the throttle groove decreases in the direction of the movement of the first valve element 5000; in other words, the radial distance between the opening of the throttle passage 5100 and the first bottom wall 5110 decreases in the direction of the movement of the first spool 5000. Thus, along the action direction of the first valve core 5000, the cross-sectional area of the throttling channel 5100 is reduced, that is, the fluid flow is reduced, and the cross-sectional area of the throttling channel 5100 can be further adjusted by adjusting the rotation angle of the first valve core 5000, so that the cross-sectional area of the throttling channel 5100 can be further adjusted, and the size of the throttling channel 5100 can be conveniently adjusted, so that the flow is conveniently adjusted. Further, the first side line 5131 is parallel to the direction of movement of the first spool 5000, so that the ball valve 10 adjusts the cross-sectional area of the throttle passage 5100 relatively quickly and efficiently by rotating the first spool 5000.
In this embodiment, the first bottom wall 5110 and the second bottom wall 5120 have a first included angle, as illustrated in fig. 9, where the first included angle is greater than or equal to 80 ° and less than or equal to 160 °; the included angle here may be not only the included angle between the surface of the first bottom wall 5110 and the surface of the second bottom wall 5120, but also the included angle between the tangential plane of the first bottom wall 5110 and the tangential plane of the second bottom wall 5120, or the included angle between the tangential plane of the first bottom wall 5110 and the surface of the second bottom wall 5120, or the included angle between the tangential plane of the second bottom wall 5120 and the surface of the first bottom wall 5110. During the rotation of the first valve core 5000, since the distance between the tail end of the throttling channel 5100 and the mating surface is gradually reduced, the distance between the second bottom wall 5120 and the mating surface is also gradually reduced, and during the throttling process of the ball valve, when the distance between the tail end of the throttling channel 5100 and the mating surface of the first valve seat 6100 is greater than the distance between the mating surface of the first valve seat 6100 and the first bottom wall 5110, the flow adjustment of the first valve core 5000 can be normally performed; when the distance between the tail end and the first seat mating surface 6120 is smaller than the distance between the first seat mating surface 6120 and the first bottom wall 5110, the formed cavity of the tail end of the throttling channel 5100 and the first seat mating surface 6120 is a fluid channel, and the throttling effect is poor or not satisfactory, so that the included angle between the first bottom wall 5110 and the second bottom wall 5120 is limited, and the distance of the first bottom wall 5110 which is relatively prolonged or the interference of the tail end is delayed, namely the adjusting range of the throttling channel 5100 is prolonged, which is beneficial to improving the performance of the ball valve.
Referring to fig. 14, the first valve seat 6100 mating surface includes a first region 6121 and a second region 6122, where the first region 6121 and a wall of the throttling channel can form a throttling cavity, or when the ball valve 10 throttles, the first region 6121 is a portion of the first valve seat mating surface opposite to an opening of the throttling channel 5100, or the first region 6121 and the wall of the throttling channel together form a throttling cavity. Likewise, the walls of the second zone 6122 and the throttle passage can form a throttle chamber, with the first zone 6121 and the second zone 6122 being located between the first openings of the second flow passage along the direction of action of the first spool. Further, along the motion direction of the first valve element 5000, the opening length of the throttling channel 5100 is greater than the distance between the first zone 6121 and the second zone 6122, wherein the "distance between the first zone 6121 and the second zone 6122" refers to the maximum distance between the first zone 6121 and the second zone 6122, and the opening length of the throttling channel 5100 refers to the distance between the head end and the tail end; alternatively, the first valve element has a position where the trailing end and the leading end are located on both sides of the mating surface of the valve seat in the radial direction of the first valve element, which is advantageous in preventing: during rotation of the first valve element 5000, the opening of the throttling passage faces only the mating surface of the first valve seat 6100 and the first opening of the third flow passage 500, which causes a stop phenomenon of the ball valve 10 and damages the thermal management system. Likewise, the mating surface of the second valve seat 6200 includes a third region and a fourth region, where the third region and the wall of the throttling channel 5100 are capable of forming a throttling cavity, or, when the ball valve 10 throttles, the third region is a portion of the mating surface of the second valve seat opposite to the opening of the throttling channel, or, the third region and the wall of the throttling channel 5100 together form a throttling cavity; the walls of the fourth region and the throttle channel 5100 can form a throttle cavity, the third region and the fourth region are located between the first openings of the second flow channel 400 along the action direction of the first valve core 5000, and the opening length of the throttle channel 5100 is longer than the distance between the third region and the fourth region along the action direction of the first valve core 5000, and similarly, the distance between the third region and the fourth region refers to: the maximum distance between the third region and the fourth region is along the rotation direction of the first valve core. ".
Referring to fig. 3, 4 and 8 and 9, the first valve core 5000 further includes a conducting channel 5200, the throttling channel 5100 and the conducting channel 5200 are not communicated, and the "non-communication" herein refers to that the first valve core does not have a channel or the cavity is communicated with the throttling channel 5100 and the conducting channel 5200, of course, the throttling channel 5100 can be communicated with the conducting channel 5200 through the first cavity 100, but the first cavity does not belong to the first valve core 5000. Referring to fig. 3, 4 and 7-9, the conduction path 5200 of the first valve core 5000 has two openings, the two openings of the conduction path 5200 are formed on the outer wall of the first valve core 5000, the conduction path 5200 of the first valve core 5000 includes a second hole 5210 and a first hole 5220, the cavity formed by the second hole 5210 is communicated with the cavity formed by the first hole 5220, the conduction path 5200 of the first valve core 5000 includes the cavity formed by the second hole 5210 and the cavity formed by the first hole 5220, in this embodiment, the axis of the first hole 5220 is parallel to the axis of the valve rod 2300, the opening of the first hole 5220 on the outer wall of the first valve core, that is, the first opening of the conduction path, faces away from the valve rod 2300, the axis of the second hole 5210 is perpendicular to the axis of the valve stem 2300, the second hole 5210 has an opening on the outer wall of the first valve core 5000, that is, a second opening of the conducting channel, in this embodiment, the first flow channel 300 has an opening on the first opening portion 3110, that is, a first opening of the first flow channel 300, or the first flow channel 300 has an opening on the wall of the first cavity 100, the first flow channel 300 communicates with the first cavity 100, the axis of the first flow channel 300 is perpendicular to the axis of the first opening portion 3110, and the first opening of the conducting channel 5200 is disposed opposite to the first opening of the first flow channel 300, which is advantageous for fluid to enter the conducting channel 5200, so that the flow resistance of the fluid of the first flow channel 300 entering the conducting channel 5200 can be reduced. Of course, the first opening of the conducting channel may not be opposite to the first opening of the first flow channel 300, and will not be described in detail. In operation of the ball valve 10, fluid from the first flow path 300 enters the first chamber 100 and then the first bore 5220 and then the second bore 5210, the ball valve 10 having a conducting function when the opening of the second bore is in communication with the passageway 6120 of the first valve seat. It is appreciated that the axis of the second bore 5210 can be between 45 deg. -135 deg. from the axis of the first bore. Of course, when the ball valve is conducted, the second opening of the conducting channel 5200 is opposite to the valve seat channel, and the first opening of the conducting channel 5200 faces the first cavity, so that the first cavity 100 can be communicated with the valve seat channel. Further, when the ball valve 10 is turned on, the projection of the first opening of the conduction path 5200 does not coincide with the projection of the valve seat path on the first face, and thus the first opening of the conduction path 5200 communicates directly with the first chamber 100, not with the second flow path 400 and the third flow path 500.
For convenience of description, the second opening of the conduction path 5200 has a front end and a rear end in the rotation direction of the first valve spool 5000, the front end refers to a portion that is first in contact with the first valve seat 6100, and the conduction path is not in communication with the third flow passage 500 when the front end is in contact, the rear end refers to a portion that is last away from the first valve seat 6100, and the conduction path 5200 is not in communication with the third flow passage 500 when the rear end is away; in the present embodiment, the head end is located in front of the tail end, and the distance between the head end and the rear end is greater than the distance between the first region and the second region in the rotation direction of the first valve spool 5000, so that the first valve spool has a position where the first valve spool 5000 can prevent the first chamber 100 from communicating with the third flow passage 500. Likewise, the distance between the head end and the rear end is greater than the distance between the third region and the fourth region, and as used herein, the term "distance between the third region and the fourth region" refers to the maximum distance between the third region and the fourth region, such that the first valve spool 5000 has an operating position in which the first valve spool 5000 is capable of disconnecting the first chamber 100 from the second flow path 400.
In the solution of the present embodiment, the first flow channel 300 is used as a channel for fluid entering the first cavity 100, and the second flow channel 400 and the third flow channel 500 are used as channels for fluid exiting the first cavity 100. Specifically, referring to fig. 15 and 3, fluid enters the first chamber 100 through the first flow channel 300, in the first working position of the first valve element 5000, the conducting channel 5200 of the first valve element 5000 is communicated with the channel 6110 of the first valve seat, that is, the conducting channel 5200 of the first valve element is communicated with the third flow channel 500, the first valve element 5000 cuts off the channel between the first chamber 100 and the channel of the second valve seat 6200, and further the second flow channel 400 is not communicated with the first chamber 100, the fluid in the first chamber 100 leaves the first chamber 100 through the third flow channel 500, and then the ball valve is only used as the channel of the fluid. In the second working position of the first valve element 5000, referring to fig. 3 and 16, the throttling channel 5100 communicates the first cavity 100 with the third flow channel 500, the fluid in the first cavity 100 enters the third flow channel 500 after being throttled by the throttling channel 5100, the first valve element 5000 makes the first cavity and the second flow channel not communicated, and at this time, the ball valve has throttling function. Referring to fig. 3, 17 and 18, the first valve core 5000 further includes a third operating position and/or a fourth operating position, referring to fig. 17, in the third operating position of the first valve core 5000, the throttle channel 5100 communicates between the first chamber 100 and the second flow channel 400; in the fourth working position of the first valve element, referring to fig. 18, the conducting channel 5200 communicates the first cavity with the third flow channel, which will not be described in detail.
Referring to fig. 19, the first valve element 5000 has only a throttle passage, and has no conduction passage, so that the first valve element cooperates with the valve seat to have only a throttle effect. Referring to fig. 20, the ball valve 10 includes only a first flow passage and a third flow passage 500, the first valve core has only a throttling passage 5100, and after fluid enters the first chamber 100 through the first flow passage 300, the fluid throttles into the third flow passage 500 through the throttling passage 5100 to be discharged out of the ball valve. It will be appreciated that the first valve element may also have both a throttling passage and a conductance passage, in which case the ball valve may be selectively throttled or vented. Referring to fig. 21, in comparison with the solution disclosed in fig. 20, the ball valve further has a second flow passage 400, in which case the ball valve has not only a throttling effect but also an option to discharge the ball valve through the second flow passage 400 or the third flow passage 500.
It should be noted that: the above embodiments are only for illustrating the present invention and not for limiting the technical solutions described in the present invention, for example, the directions of "front", "rear", "left", "right", "up", "down", etc., and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present invention may be combined, modified or substituted with each other, and all the technical solutions and modifications thereof without departing from the spirit and scope of the present invention are intended to be included in the scope of the claims of the present invention.
Claims (12)
1. A ball valve comprising a first valve spool and a valve body, the ball valve having a first cavity, the first valve spool being located in the first cavity; the ball valve comprises a first flow passage and a second flow passage, the first flow passage is formed on the valve body, and the first flow passage is provided with an opening on the wall of the first cavity;
the ball valve further comprises a first valve seat, the first valve seat is provided with a first valve seat matching surface, a first opening of the second flow channel is formed on the first valve seat matching surface, the first valve seat matching surface is circumferentially distributed along the first opening of the second flow channel, and the first valve seat matching surface is dynamically sealed with the outer wall of the first valve core;
the first valve core is provided with a throttling channel, the throttling channel is sunken relative to the outer wall of the first valve core, the throttling channel is provided with an opening on the outer wall of the first valve core, and in at least one working position of the first valve core, the first cavity is communicated with the first opening of the second flow channel through the throttling channel;
the bottom wall of the throttling channel comprises a first bottom wall and a second bottom wall, the first bottom wall and the second bottom wall are intersected, the opening length of the throttling channel is larger than the length of the first bottom wall along the action direction of the first valve core, and the opening length of the throttling channel is larger than the length of the second bottom wall.
2. The ball valve of claim 1, wherein the first bottom wall length and the second bottom wall angle define a first angle, wherein the first angle is greater than or equal to 80 ° and less than or equal to 160 °.
3. The ball valve according to claim 1 or 2, wherein the wall forming the throttle passage includes a first side wall and a second side wall, the first side wall and the second side wall being disposed opposite to each other, the first bottom wall being located between the first side wall and the second side wall, the second bottom wall extending from an outer wall of the first spool to the first bottom wall, the first bottom wall extending from the second bottom wall to an outer wall of the first spool in a direction of action of the first spool;
the first side wall is provided with a first side line and a second side line, the first side line is also positioned on the outer wall of the first valve core, the second side line is also positioned on the first bottom wall, and the radial distance between the first side line and the second side line is reduced along the action direction of the first valve core.
4. The ball valve according to any one of claims 1 or 2, wherein the first spool further includes a conduction passage that is not in communication with the throttle passage, an extending direction of the throttle passage being parallel to an action direction of the first spool; the conduction channel is formed with two openings on the outer wall of the first valve core, at one working position of the first valve core, the first opening of the conduction channel is communicated with the first cavity, the second opening of the conduction channel is opposite to the first opening of the second flow channel, and the conduction channel is communicated with the second flow channel.
5. The ball valve of claim 4, wherein the second bottom wall includes a first arc segment extending from an outer wall of the first valve spool toward the first bottom wall; and/or, the first bottom wall includes a second arc segment extending from an outer wall of the first valve core toward the second bottom wall.
6. The ball valve of claim 3, wherein the first spool further comprises a pass-through channel that is not in communication with the throttle channel, the throttle channel extending in a direction parallel to a direction of motion of the first spool; the conduction channel is formed with two openings on the outer wall of the first valve core, at one working position of the first valve core, the first opening of the conduction channel is communicated with the first cavity, the second opening of the conduction channel is opposite to the first opening of the second flow channel, and the conduction channel is communicated with the second flow channel.
7. The ball valve of claim 6, wherein the second bottom wall includes a first arc segment extending from an outer wall of the first spool toward the first bottom wall; and/or, the first bottom wall includes a second arc segment extending from an outer wall of the first valve core toward the second bottom wall.
8. The ball valve of claim 5 or 7, wherein the first seat mating surface comprises a first region and a second region, the first valve element contacting the first seat mating surface in the first region and the second region, the first region and the wall of the orifice passage being capable of forming a orifice chamber, the second region and the wall of the orifice passage being capable of forming a orifice chamber; the first area and the second area are positioned between the first openings of the second flow channels along the action direction of the first valve core, and the length of the throttle channel openings is larger than the distance between the first area and the second area.
9. The ball valve of claim 8, wherein the ball valve comprises a valve cover, at least a portion of the valve cover is positioned in a cavity formed by the first opening, the valve cover is fixedly connected with the first opening, and a joint of the valve cover and the first opening is sealed;
defining a first surface, wherein the first surface is perpendicular to the axis of the first opening, and the projection of the first opening of the conducting channel on the first surface is not overlapped with the projection of the first opening of the second flow channel on the first surface;
the throttle channel is provided with a head end and a tail end, the second opening of the conduction channel is provided with a front end and a rear end, the head end is positioned in front of the tail end along the action direction of the first valve core, the rear end is positioned in front of the head end, and the front end is positioned in front of the rear end;
and the distance between the head end and the rear end is greater than the distance between the first area and the second area along the action direction of the first valve core.
10. The ball valve of claim 9, further comprising a third flow passage and a second valve seat, wherein a first opening of the third flow passage is formed in a mating surface of the second valve seat, and wherein a projection of the first opening of the pass-through passage on a first face is not coincident with a projection of the first opening of the third flow passage on the first face;
the second valve seat matching surface comprises a third area and a fourth area, the third area and the wall of the throttling channel can form a throttling cavity, the fourth area and the wall of the throttling channel can form a throttling cavity, the third area and the fourth area are located between first openings of the third flow channel along the action direction of the first valve core, the length of the opening of the throttling channel is larger than the distance between the third area and the fourth area, and the distance between the head end and the rear end is larger than the distance between the third area and the fourth area.
11. The ball valve of claim 10, wherein the first spool comprises a first bore and a second bore, an axis of the first bore and an axis of the second bore are perpendicular, a cavity formed by the first bore communicates with a cavity formed by the second bore, and the pass-through passage comprises a cavity formed by the first bore and a cavity formed by the second bore;
the first hole forms a first opening of the conduction channel on the outer wall of the first valve core, the second hole forms a second opening of the conduction channel on the outer wall of the first valve core, the opening of the first flow channel is opposite to the first opening of the conduction channel, and the second opening of the second flow channel is formed on the outer end wall of the valve cover; the first valve seat and the second valve seat are located on both sides of the first valve core along the axial direction of the first opening portion.
12. The ball valve of claim 11, further comprising a valve stem, wherein the first valve spool has a stem groove mated with the valve stem, wherein the stem groove is located on opposite sides of the first valve spool from the first opening of the passage, wherein the valve stem is capable of actuating the first valve spool; the first valve core comprises a first working position and/or a second working position, and in the first working position of the first valve core, the conduction channel is communicated with the first cavity and the second flow channel; in a second working position of the first valve core, the throttling channel is communicated with the first cavity and the second flow channel;
the first valve core further comprises a third working position and/or a fourth working position, and in the third working position of the first valve core, the throttling channel is communicated with the first cavity and the third flow channel; in the fourth working position of the first valve core, the conducting channel is communicated with the first cavity and the third flow channel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910550051.4A CN112128426B (en) | 2019-06-24 | 2019-06-24 | Ball valve |
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| CN201910550051.4A CN112128426B (en) | 2019-06-24 | 2019-06-24 | Ball valve |
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| CN112128426A CN112128426A (en) | 2020-12-25 |
| CN112128426B true CN112128426B (en) | 2023-12-29 |
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| CN201910550051.4A Active CN112128426B (en) | 2019-06-24 | 2019-06-24 | Ball valve |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013133933A (en) * | 2012-03-23 | 2013-07-08 | Yaesu Co Ltd | Channel switching valve and lifting device |
| CN203656268U (en) * | 2013-12-31 | 2014-06-18 | 超达阀门集团股份有限公司 | A three-way half ball valve with valve base mechanisms being protected |
| CN103982679A (en) * | 2014-05-16 | 2014-08-13 | 广州贝朗卫浴用品有限公司 | Water mixing valve with temperature memory function and adjustable exit angle |
| CN203926909U (en) * | 2014-06-20 | 2014-11-05 | 浙江力诺流体控制科技股份有限公司 | Six mouthfuls of four way ball valves |
| CN109764144A (en) * | 2019-02-20 | 2019-05-17 | 郑兴 | A kind of double mode flow throttling ball valves |
-
2019
- 2019-06-24 CN CN201910550051.4A patent/CN112128426B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013133933A (en) * | 2012-03-23 | 2013-07-08 | Yaesu Co Ltd | Channel switching valve and lifting device |
| CN203656268U (en) * | 2013-12-31 | 2014-06-18 | 超达阀门集团股份有限公司 | A three-way half ball valve with valve base mechanisms being protected |
| CN103982679A (en) * | 2014-05-16 | 2014-08-13 | 广州贝朗卫浴用品有限公司 | Water mixing valve with temperature memory function and adjustable exit angle |
| CN203926909U (en) * | 2014-06-20 | 2014-11-05 | 浙江力诺流体控制科技股份有限公司 | Six mouthfuls of four way ball valves |
| CN109764144A (en) * | 2019-02-20 | 2019-05-17 | 郑兴 | A kind of double mode flow throttling ball valves |
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Effective date of registration: 20201231 Address after: 312500 Zhejiang Shaoxing Xinchang County Qixing street Liquan Applicant after: ZHEJIANG SANHUA INTELLIGENT CONTROLS Co.,Ltd. Address before: 310018 no.289-2, No.12 street, Xiasha Economic Development Zone, Hangzhou City, Zhejiang Province Applicant before: Hangzhou Sanhua Research Institute Co.,Ltd. |
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