WO2022213762A1 - 一种平面密封低流阻换向阀 - Google Patents

一种平面密封低流阻换向阀 Download PDF

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Publication number
WO2022213762A1
WO2022213762A1 PCT/CN2022/079825 CN2022079825W WO2022213762A1 WO 2022213762 A1 WO2022213762 A1 WO 2022213762A1 CN 2022079825 W CN2022079825 W CN 2022079825W WO 2022213762 A1 WO2022213762 A1 WO 2022213762A1
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WO
WIPO (PCT)
Prior art keywords
valve
reversing
cover
channel
pipe
Prior art date
Application number
PCT/CN2022/079825
Other languages
English (en)
French (fr)
Inventor
贾菁
Original Assignee
烟台佳士阀泵有限公司
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Publication of WO2022213762A1 publication Critical patent/WO2022213762A1/zh

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Classifications

    • 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
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
    • F16K27/045—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members with pivotal obturating members
    • 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
    • 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
    • F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means

Definitions

  • the invention belongs to the technical field of valves, and in particular relates to a plane sealing low flow resistance reversing valve.
  • the exhaust end is high temperature and high pressure gas
  • the suction end is low temperature and low pressure gas, that is, there is a temperature difference and pressure difference between the media flowing into and out of the valve, so that the circular rotation
  • the valve body produces pressure deformation and thermal deformation
  • the valve core is a reversing valve with a circular structure.
  • the thermal deformation causes the valve to have a large rotating torque, difficult rotation, poor switching stability, large leakage, and cannot be automatically compensated after wear.
  • the present invention provides a plane sealing low flow resistance reversing valve, which solves the problem that the existing valve has poor operation stability and reliability under pressure difference and temperature difference, and cannot be automatically compensated after wear.
  • a plane sealing low flow resistance directional valve comprising a cover body and a valve body, the cover body is provided with at least two cover channels, and the end of the valve body is provided with There is a first body channel, and the side of the valve body is provided with a second body channel; the inside of the valve body is provided with a rotating reversing pipe, and the rotating reversing pipe includes an oblique pipe part and a straight pipe part that communicate with each other.
  • An inclined tube accommodating cavity and a straight tube accommodating cavity are formed inside the body, the inclined tube part is in the inclined tube accommodating cavity, and the straight tube part is in the straight tube accommodating cavity; a drive is provided outside the rotation reversing tube a ring gear, the end of the inclined pipe part is connected with a valve seat; the valve seat is provided with a transition channel, the transition channel is communicated with the inclined pipe part of the rotary reversing pipe, and the driving ring gear drives the rotary reversing pipe When rotated, the valve seat rotates along with the rotation reversing tube, so that the cover channel, the first body channel and the second body channel are alternately connected or closed.
  • the diameter of the front end of the valve seat and the cover body is larger than the diameter of the rotary reversing tube, and the inner channel of the rotary reversing tube is in communication with the first body channel.
  • the driving ring gear is at the connecting position of the inclined pipe part and the straight pipe part, and the driving ring gear is connected with a driving component, and the driving component is in the accommodating position of the inclined pipe
  • the drive assembly includes a drive assembly and a drive gear, the drive assembly is connected with the drive gear, the drive gear meshes with the drive ring gear, and the meshing mode adopts the outer ring gear to mesh, and the inner gear to mesh, Any of spur gear meshing, helical gear meshing and worm gear meshing.
  • the driving gear and the driving ring gear are meshed by any one of external ring gear meshing, internal gear meshing, helical gear meshing and turbine worm meshing;
  • the drive assembly adopts a single motor; or the drive assembly adopts a combination of a motor and a reducer, and the reducer is a planetary reducer, a harmonic shock absorber, a turbine worm reducer, a cycloidal reducer, a hard tooth surface reducer; or the drive assembly adopts a single motor.
  • a magnetic coupling, a magnetic transmission mechanism, a hydraulic mechanism or a pneumatic mechanism are used; a terminal board is provided on the valve body or the cover body, and the lead wire of the driving assembly is drawn out through the terminal board.
  • a sensor hole is provided on the cover body, and a sensor is located inside the sensor hole; a magnetic block is provided on the valve seat, and the magnetic block is in a corresponding relationship with the sensor. Both the number and the number of magnetic blocks are at least one; the sensor is in the form of a magnetic sensor or an electrical switch or an electromagnetic sensor, or a photoelectric sensor, an infrared and ultraviolet sensor.
  • the valve body or cover is provided with a junction box, and the terminal board leads are introduced into the junction box; a sensor protection cover is provided outside the sensor, and the sensor leads are introduced into the junction box ;
  • the valve body or the cover body is provided with a sight glass, which is used to check the rotation state of the rotary reversing tube.
  • the transition channel corresponds to the cover channel on the cover body and is alternately connected or closed.
  • the straight pipe part of the rotary reversing pipe is provided with a bearing, and the radial or axial direction of the straight pipe part or the right end face of the straight pipe part is provided with a seal.
  • the cover body is provided with a fixed stopper, and the valve seat is provided with a rotating stopper; the fixed stopper corresponds to the rotating stopper and plays a limiting role, There must be at least one fixed block and one rotating block.
  • a wear-resistant sealing material is provided at the matching position of the cover body and the rotary reversing tube, and the wear-resistant sealing material is a single metal or alloy, or a polytetrafluoro material or a composite material,
  • the wear-resistant sealing material is provided by assembly, crimping, welding, casting, inlaying or spraying.
  • the rotary reversing tube is provided with a spring member, and the spring member is arranged at the outer end or the middle of the straight tube portion, or the spring member is arranged at the position of the inclined tube portion;
  • the spring parts are disc springs, wave springs, rectangular cylindrical springs or ordinary compression springs.
  • a pin hole is provided on the center of rotation of the valve seat, and a center hole is provided on the center of the cover; the center hole and the pin hole pass through the pin connected, the valve seat and the rotary reversing pipe rotate around the pin shaft.
  • the valve seat is provided with a closed position, and the closed position opens or closes the cover channel on the cover body.
  • the cover body of the present invention is provided with at least two cover channels, the end of the valve body is provided with a first body channel, and the side of the valve body is provided with a second body channel; the inside of the valve body is provided with a rotation reversing tube, and the rotation reversing tube
  • the valve body includes an inclined tube portion and a straight tube portion that are connected to each other.
  • a inclined tube accommodation cavity and a straight tube accommodation cavity are formed inside the valve body.
  • the inclined tube portion is in the inclined tube accommodation cavity, and the straight tube portion is in the straight tube accommodation cavity.
  • a driving gear ring is connected to the periphery, and a valve seat is connected to the end of the inclined pipe part; the driving gear ring drives the rotation reversing pipe to rotate, and the valve seat rotates with the rotation reversing pipe, so that the cover channel is connected with the first body channel and the second body channel. Channels are alternately switched on or off.
  • the invention changes the circular rotating structure of the traditional valve core, and the flow channel adopts the straight-through mode, which greatly reduces the amount of internal leakage, reduces the fluid resistance, enhances the reliability of the valve operation under the pressure difference and temperature difference, and can be carried out after wear and tear. Automatic compensation greatly improves the service life of the valve.
  • Fig. 1 is a schematic structural diagram of the plane-sealed low-flow resistance directional valve provided in Embodiment 1 of the present invention
  • Fig. 2 is a schematic diagram of the internal structure of the plane-sealed low-flow resistance directional valve provided in Embodiment 1 of the present invention
  • Fig. 3 is the present invention
  • Figure 4 is a schematic structural diagram of the plane sealing low flow resistance directional valve provided in Embodiment 2 of the present invention
  • Figure 5 is a schematic structural diagram of the plane sealing low flow resistance directional valve provided in Embodiment 3 of the present invention
  • FIG. 6 is a schematic diagram of the closed position of the plane sealing low flow resistance reversing valve provided in Embodiment 4 of the present invention.
  • a plane sealing low flow resistance reversing valve comprising a cover body 1 and a valve body 2, the cover body 1 is provided with at least two cover passages 3, and the end of the valve body 2 is provided with at least two cover channels 3.
  • a first body channel 4 is provided, and a second body channel 5 is provided on the side of the valve body 2; a rotary reversing pipe 6 is provided inside the valve body 2, and the rotary reversing pipe 6 includes inclined pipes that communicate with each other.
  • the valve body 2 is formed with a sloping tube accommodating cavity 9 and a straight tube accommodating cavity 10, the sloping tube part 7 is in the sloping tube accommodating cavity 9, and the straight tube part 8 is in the A straight tube accommodating cavity 10; a driving gear ring 11 is provided outside the rotation reversing tube 6, and a valve seat 12 is connected to the end of the inclined tube portion 7;
  • the inclined pipe portion 7 of the reversing pipe 6 is connected, the driving gear ring 11 drives the rotating reversing pipe 6 to rotate, and the valve seat 12 rotates following the rotating reversing pipe 6, so that the cover channel 3 and the rotating reversing pipe 6 are rotated.
  • the first body channel 4 and the second body channel 5 are alternately connected or closed.
  • the cover body 1 is provided with two cover channels 3, which are respectively a cover channel 3A and a cover channel 3B.
  • the shape of the cover channel 3A and the cover channel 3B is any shape, preferably a circle, and the external shape of the valve body 2 is arbitrary.
  • the right end of the valve body 2 is provided with a first body channel 4, and the inside of the valve body 2 is a stacked column structure with a large diameter at the left end and a small diameter at the right end. accommodating cavity 10 .
  • a second body channel 5 is provided on the side wall of the inclined tube accommodating cavity 9 at the large diameter position of the valve body 2 .
  • the internal shape of the flow channel L is any curved surface shape or any fluid curved surface shape.
  • the pipe part 8 is inserted into the straight pipe accommodating cavity 10 at the small diameter position on the left side of the valve body 2 and cooperates with the straight pipe accommodating cavity 10.
  • the inclined pipe part 7 of the rotary reversing pipe 6 is located in the inclined pipe containing the large diameter position inside the valve body 2. In the cavity 9, the rotary reversing tube 6 can rotate around the center of the straight tube portion 8.
  • a valve seat 12 is provided at the end of the rotation reversing pipe 6 .
  • the cross-sectional area of the passage of the valve seat 12 is greater than or equal to the cross-sectional area of the flow passage L of the rotary reversing pipe 6.
  • the valve seat 12 is provided with a transition passage, and the transition passage communicates with the inclined pipe portion 7 of the rotary reversing pipe 6.
  • the transition passage Corresponds to the cover channel 3 on the cover body 1 and is alternately connected or closed.
  • the inclined tube accommodating cavity 9 at the large diameter position in the valve body 2 is provided with a drive assembly 13
  • the driving ring gear 11 is at the connecting position of the inclined tube portion 7 and the straight tube portion 8
  • the driving gear ring 11 is connected with a
  • the drive assembly 13 includes a drive assembly 14 and a drive gear 15
  • the drive assembly 14 is connected with the drive gear 15
  • the drive gear 15 meshes with the drive ring gear 11 .
  • the driving gear 15 meshes with the driving ring gear 11 by any one of external ring gear meshing, internal ring gear meshing, spur gear meshing, helical gear meshing and worm gear meshing.
  • the drive assembly 14 adopts a single motor; or the drive assembly 14 adopts a combination of a motor and a reducer, and the reducer is a planetary reducer, a harmonic shock absorber, a turbine worm reducer, a cycloid reducer, a hard tooth or the drive assembly 14 adopts a magnetic coupling, a magnetic transmission mechanism, a hydraulic mechanism or a pneumatic mechanism; the valve body 2 or the cover body 1 is provided with a terminal board 16, and the lead wire of the drive assembly 14 passes through the The terminal board 16 is led out.
  • the reducer is a planetary reducer, a harmonic shock absorber, a turbine worm reducer, a cycloid reducer, a hard tooth
  • the drive assembly 14 adopts a magnetic coupling, a magnetic transmission mechanism, a hydraulic mechanism or a pneumatic mechanism
  • the valve body 2 or the cover body 1 is provided with a terminal board 16, and the lead wire of the drive assembly 14 passes through the The terminal board 16 is led out.
  • a sensor hole 17 is provided on the cover body 1, and a blind hole is preferred.
  • the magnetic block and the sensor are in a corresponding relationship, and the number of sensors is related to the magnetic block.
  • the number is at least one, and the number can be different, and the sensor is in the form of a magnetic sensor or an electrical switch or an electromagnetic sensor, or a photoelectric sensor, an infrared sensor or an ultraviolet sensor.
  • the working principle of the plane sealing low flow resistance reversing valve of this embodiment is as follows: in the initial state, the first body passage 4 is connected to the cover passage 3A through the passage L in the rotary reversing pipe 6 and the transition passage of the valve seat 12, The second body channel 5 communicates with the cover channel 3B through the inclined tube accommodating cavity 9 inside the valve body 2, that is, the first body channel 4 communicates with the cover channel 3A, and the second body channel 5 communicates with the cover channel 3B.
  • the drive assembly 13 drives the rotary reversing tube 6 to rotate through the driving ring gear 11
  • the rotary reversing tube 6 drives the valve seat 12 to rotate
  • the valve seat 12 communicates with the cover channel 3B
  • the sensor outputs a signal in position to stop the rotation of the drive assembly 13 .
  • the first body channel 4 is connected to the cover channel 3B
  • the second body channel 5 is connected to the cover channel 3A.
  • the driving assembly 13 drives the rotary reversing tube 6 to rotate in the reverse direction, and the rotary reversing tube 6 drives the valve seat 12 to reverse, so that the valve seat 12 is communicated with the cover channel 3A, and the first body channel 4 is connected to the cover channel 3A.
  • the cover channel 3A is connected, and the second body channel 5 is connected to the cover channel 3B.
  • the sensor outputs a signal in position, and the drive assembly 13 stops rotating.
  • the cover body 1 is provided with two cover channels 3 . They are the cover channel 3A and the cover channel 3B, respectively.
  • the shape of the cover channel 3A and the cover channel 3B can be any shape, and the best is a circle.
  • the outer shape of the valve body 2 is arbitrary.
  • the right end of the valve body 2 is provided with a first body channel 4.
  • the inside of the valve body 2 is a stacked column cake structure with a large diameter at the left end and a small diameter at the right end. Inclined tube accommodating cavity 9 and straight tube accommodating cavity 10 .
  • a second body channel 5 is provided on the left side of the outer wall of the inclined tube accommodating cavity 9 of the valve body 2.
  • a flow channel L in the middle of the rotary reversing tube 6 inside the valve body 2.
  • the internal shape of the flow channel L is any curved surface shape or any fluid curved surface shape.
  • the tube accommodating cavity 10 is matched with the valve body 2.
  • the inclined tube portion 7 of the rotary reversing tube 6 is located in the inclined tube accommodating cavity 9 at the large diameter position inside the valve body 2. turn.
  • a bearing 19 and a radial seal 20 are provided at the position of the straight pipe portion 8 of the rotation reversing pipe 6 .
  • the seal 20 is a shaft seal seal 20 .
  • the bearing 19 is added to ensure rotation, and the seal 20 improves the sealing performance.
  • a fixed stopper 21 is provided on the cover body 1, and a rotating stopper 22 is provided on the valve seat 12.
  • the fixed stopper 21 corresponds to the rotating stopper 22 and plays a limiting role.
  • the fixed stopper 21 The number of the fixed block 21 and the number of the rotating block 22 can be different. It can ensure the accuracy of the rotation of the rotating reversing tube 6 in place.
  • a wear-resistant sealing material 23 is provided at the matching position of the cover body 1 and the rotary reversing tube 6, and the wear-resistant sealing material 23 can be a single metal or alloy, or a polytetrafluoro material or a composite material, and the setting method can be assembled , crimping, welding, casting, inlaying, spraying. During operation, wear-resistant seals 20 are added to prevent wear and damage.
  • a spring member 24 is provided at the rightmost end of the position of the straight pipe portion 8 of the rotary reversing tube 6, and the spring member 24 can be a disc spring or a wave spring, a rectangular cylindrical spring or a common compression spring.
  • a pin hole 25 is provided on the center of rotation of the valve seat 12, and a center hole 26 is provided on the center of the cover body 1.
  • the center hole 26 and the pin hole 25 are connected by a pin, and the valve seat 12 The tube can be rotated around the pin axis with the swivel switch.
  • a drive assembly 13 is provided in the inclined tube accommodating chamber 9 at the large-diameter position in the valve body 2, and the drive assembly 13 includes a driving gear 15, a drive assembly 14 and a terminal plate 16.
  • the driving ring gear 11 is set at the connecting position of the straight pipe portion 8 of the rotary reversing pipe 6 and the inclined pipe portion 7, the driving assembly 14 is arranged inside the valve body 2, and the driving ring gear 11 is meshed with the driving gear 15, and the meshing method is external. Ring gear meshing, ring gear meshing, helical gear meshing, bevel gear meshing or worm gear meshing.
  • the drive assembly 14 is a combination of a motor and a reducer, and the reducer is a planetary reducer, a harmonic shock absorber, a turbine worm reducer, a cycloid reducer, a hard tooth surface reducer, and the drive assembly 13 can also be a magnetic coupling.
  • a terminal board 16 is provided on the valve body 2 or the cover body 1, and the leads of the drive assembly 14 are led out through the terminal board 16.
  • the cover body 1 is provided with a junction box 18, and the lead wires of the terminal board 16 are introduced into the junction box.
  • the working principle of the plane sealing low flow resistance reversing valve in the second embodiment is the same as that in the first embodiment.
  • valve body 2 is a special-shaped structure, and the valve body 2 is decomposed into two parts, the back of the valve body 2 is flanged, and the cover body 1 is also flanged , the cover body 1 and the valve body 2 are connected by flanges.
  • the driving assembly 13 is set at the middle position of the valve body 2
  • the driving ring gear 11 is set at the position of the straight pipe portion 8 of the rotary reversing tube 6, and the meshing mode of the driving assembly 14 and the driving ring gear 11 is the spur gear meshing mode
  • the helical gear meshing mode, the bevel gear meshing can also be the meshing mode of the turbine worm
  • the straight pipe part 8 is provided with a sealing member 20 and a thrust bearing
  • the spring member 24 acts on the oblique rotation of the rotation reversing tube 6 through the thrust bearing. on the pipe part 7, so as to make the rotation more flexible.
  • the position of the spring member 24 can also be set on the left side of the thrust bearing.
  • the difference between this embodiment 4 and the above-mentioned embodiment 1 is that the cover body 1 is provided with more than three cover channels 3 , the valve seat 12 is provided with a closed position 27 , and the valve seat 12 can not only ensure the cover body
  • the cover channel 3 and the first body channel 4 on the cover 1 communicate with other channels, and can also play the role of closing a certain cover channel 3 on the cover body 1 .
  • the spring member 24 is arranged near the inclined tube portion 7, and the bearing 19 and the sealing member 20 are arranged at the end of the straight tube portion 8.
  • the second body channel 5 can be arranged on the left side of the cover body 1, and those skilled in the art can imagine that the connection position between the valve body 2 and the cover body 1 or other necessary positions
  • the sealing material can be selected as a gasket or an O-ring.
  • the left end and the right end of the rotation reversing tube 6 are of any shape that is not concentric, as long as the function of alternately communicating with the upper cover channel 3 of the cover body 1 can be met as long as the rotation energy switch can be switched.
  • the transmission mode of the drive assembly 13 can be chain transmission, belt transmission or friction transmission in addition to gear transmission.
  • connection between the cover body 1 and the valve body 2 is to directly screw or weld the cover body 2 to the valve body 2.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

一种平面密封低流阻换向阀。换向阀包括盖体(1)和阀体(2)，盖体(1)至少设有两个盖通道(3)，阀体(2)的端部和侧部分别设有第一体通道(4)和第二体通道(5)；阀体(2)内部设有包括互相导通的斜管部(7)和直管部(8)的旋转换向管(6)；旋转换向管(6)外设有驱动齿圈(11)，斜管部(7)的端部连接有阀座(12)；阀座(12)设有过渡通道，过渡通道与旋转换向管(6)的斜管部(7)相通，阀座(12)跟随旋转换向管(6)转动，以使盖通道(3)与第一体通道(4)及第二体通道(5)交替的接通或封闭。该换向阀的流道采用直通方式，减少了内泄露量，并减少了流体阻力，使阀的使用寿命大大提高。

Description

一种平面密封低流阻换向阀 技术领域
本发明属于阀技术领域，具体涉及一种平面密封低流阻换向阀。
 背景技术
目前，空调用电动阀领域，由于空调运行过程中，排气端是高温高压气体，吸气端是低温低压气体，也就是流入和流出阀的媒质存在着温差和压差，以至于圆形旋转阀阀体 产生压力变形和热变形，且阀芯为圆形结构的换向阀，热变形导致阀旋转力矩大，旋转困难，切换稳定性比较差，泄漏量大，磨损后不能自动补偿。亟需一种在压差和温差下运行可靠，且在磨损后可以进行自动补偿的换向阀，为此发明人进行了系列技术方案的研发。
 技术解决方案
为此，本发明提供一种平面密封低流阻换向阀，解决现有阀在压差和温差下运行稳定可靠性差，且在磨损后无法自动补偿的问题。
为了实现上述目的，本发明提供如下技术方案：一种平面密封低流阻换向阀，包括盖体和阀体，所述盖体至少设有两个盖通道，所述阀体的端部设有第一体通道，阀体的侧部设有第二体通道；所述阀体内部设有旋转换向管，所述旋转换向管包括互相导通的斜管部和直管部，阀体内部形成有斜管容纳腔和直管容纳腔，所述斜管部处于所述斜管容纳腔，所述直管部处于所述直管容纳腔；所述旋转换向管外设有驱动齿圈，斜管部的端部连接有阀座；所述阀座设有过渡通道，所述过渡通道与旋转换向管的斜管部相通，所述驱动齿圈带动所述旋转换向管转动，所述阀座跟随所述旋转换向管转动，以使所述盖通道与所述第一体通道及第二体通道交替的接通或封闭。
作为平面密封低流阻换向阀的优选方案，所述阀座前端与盖体配合的口径大于所述旋转换向管的口径，所述旋转换向管内通道与所述第一体通道导通。
作为平面密封低流阻换向阀的优选方案，所述驱动齿圈处于所述斜管部和直管部的衔接位置，驱动齿圈连接有驱动组件，所述驱动组件处于所述斜管容纳腔中，驱动组件包括驱动总成和主动齿轮，所述驱动总成与所述主动齿轮连接，所述主动齿轮与所述驱动齿圈啮合，啮合方式采用外齿圈啮合，内齿圈啮合，直齿轮啮合，斜齿轮啮合和涡轮蜗杆啮合的任意一种。
作为平面密封低流阻换向阀的优选方案，所述主动齿轮与所述驱动齿圈啮合方式采用外齿圈啮合，内齿圈啮合，斜齿轮啮合和涡轮蜗杆啮合的任意一种；所述驱动总成采用单一电机；或驱动总成采用电机和减速机组合体，减速机为行星减速机，谐波减震器，涡轮蜗杆减速机，摆线减速机，硬齿面减速机；或驱动总成采用磁力联轴器，磁传动机构，液压机构或者气动机构；所述阀体或盖体上设有端子板，驱动总成的引线通过所述端子板引出。
作为平面密封低流阻换向阀的优选方案，所述盖体上设有传感器孔，传感器孔内部有传感器；所述阀座上设有磁块，所述磁块与传感器为对应关系，传感器数量与磁块数量均至少一个；所述传感器形式为磁力传感器或电器开关或电磁传感器，或光电传感器，红外线紫外线传感器。
作为平面密封低流阻换向阀的优选方案，所述阀体或者盖体上设有接线盒，端子板引线引入到接线盒中；传感器外侧设有传感器保护盖，传感器引线引入到接线盒中；所述阀体或盖体设有视镜，所述视镜用于查看旋转换向管的旋转状态。
作为平面密封低流阻换向阀的优选方案，所述过渡通道与盖体上的盖通道相对应并轮换接通或者封闭。
作为平面密封低流阻换向阀的优选方案，所述旋转换向管的直管部设有轴承，直管部的径向或者轴向或者直管部的右端面设有密封件。
作为平面密封低流阻换向阀的优选方案，所述盖体设有固定挡块，所述阀座设有旋转挡块；所述固定挡块与旋转挡块对应并起到限位作用，固定挡块与旋转挡块数量均至少为一块。
作为平面密封低流阻换向阀的优选方案，所述盖体与旋转换向管配合位置设有耐磨密封材料，耐磨密封材料为单一金属或者合金，或者聚四氟材料或者复合材料，耐磨密封 材料的设置方式为装配，压接，焊接，铸造，镶嵌或喷涂。
作为平面密封低流阻换向阀的优选方案，所述旋转换向管上设有弹簧件，所述弹簧件设在直管部的外端或中间，或弹簧件设在斜管部位置；弹簧件为碟簧、波形弹簧，矩形圆柱弹簧或者普通压簧。
作为平面密封低流阻换向阀的优选方案，所述阀座的旋转圆心上设有销轴孔，所述盖体的中心上设有中心孔；所述中心孔与销轴孔通过销轴连接，所述阀座与旋转换向管围绕销轴进行旋转。
作为平面密封低流阻换向阀的优选方案，所述阀座设有封闭位，所述封闭位打开或封闭所述盖体上的盖通道。
 有益效果
本发明盖体至少设有两个盖通道，阀体的端部设有第一体通道，阀体的侧部设有第二体通道；阀体内部设有旋转换向管，旋转换向管包括互相导通的斜管部和直管部，阀体 内部形成有斜管容纳腔和直管容纳腔，斜管部处于斜管容纳腔，直管部处于直管容纳腔；斜 管部的外围连接有驱动齿圈，斜管部的端部连接有阀座；驱动齿圈带动旋转换向管转动，阀 座跟随旋转换向管转动，以使盖通道与第一体通道及第二体通道交替的接通或封闭。本发 明改变传统阀芯圆形旋转结构，流道采用直通方式，大大减少了内泄露量，并减少了流体阻 力，增强了阀在压差和温差下运行的可靠性，并且在磨损后可以进行自动补偿，使阀的使用 寿命大大提高。
 附图说明
为了更清楚地说明本发明的实施方式或现有技术中的技术方案，下面将对实施方式或现有技术描述中所需要使用的附图作简单地介绍。显而易见地，下面描述中的附图仅 仅是示例性的，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据 提供的附图引申获得其它的实施附图。
图1为本发明实施例1中提供的平面密封低流阻换向阀结构示意图； 图2为本发明实施例1中提供的平面密封低流阻换向阀内部结构示意图； 图3为本发明实施例2中提供的平面密封低流阻换向阀结构示意图；图4为本发明实施例3中提供的平面密封低流阻换向阀结构示意图；图5为本发明实施例4中提供的平面密封低流阻换向阀结构示意图；图6为本发明实施例4中提供的平面密封低流阻换向阀封闭位示意图。
图中，1、盖体；2、阀体；3、盖通道；4、第一体通道；5、第二体通道；6、旋转换向管；7、 斜管部；8、直管部；9、斜管容纳腔；10、直管容纳腔；11、驱动齿圈 ；12、阀座；13、驱动组件； 14、驱动总成；15、主动齿轮；16、端子板；17、传感器孔；18、接线盒；19、轴承；20、密封件；21、 固定挡块；22、旋转挡块；23、耐磨密封材料；24、弹簧件；25、销轴孔；26、中心孔；27、封闭位。
 本发明的实施方式
以下由特定的具体实施例说明本发明的实施方式，熟悉此技术的人士可由本说明书所揭露的内容轻易地了解本发明的其他优点及功效，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
 实施例1
参见图1、图2，提供一种平面密封低流阻换向阀，包括盖体1和阀体2，所述盖体1至 少设有两个盖通道3，所述阀体2的端部设有第一体通道4，阀体2的侧部设有第二体通道5； 所述阀体2内部设有旋转换向管6，所述旋转换向管6包括互相导通的斜管部7和直管部8，阀体2内部形成有斜管容纳腔9和直管容纳腔10，所述斜管部7处于所述斜管容纳腔9，所述直管部8处于所述直管容纳腔10；所述旋转换向管6外设有驱动齿圈11，斜管部7的端部连接有阀座12；所述阀座12 设有过渡通道，所述过渡通道与旋转换向管6的斜管部7相通，所述驱动齿圈11带动所述旋转换向管6转动，所述阀座12跟随所述旋转换向管6转动，以使所述盖通道3与所述第一体通道4及第二体通道5交替的接通或封闭。
本实施例中，盖体1设有两个盖通道3，分别为盖通道3A和盖通道3B，盖通道3A和盖通道3B形状为任意形状，最佳为圆形，阀体2外部形状任意，阀体2右端设有第一体通道4，阀体2内部为左端大径右端小径的叠柱状结构，柱状结构为圆形或者任意异形，柱状结构被设 计成斜管容纳腔9和直管容纳腔10。
具体的 ，在阀体2大径位置斜管容纳腔9的侧壁上设有第二体通道5。阀体2内部旋 转换向管6中间有流道L，流道L内部形状为任意曲面形状或者任意流体曲面形状，旋转换向管6由直管部8和斜管部7两部分组成，直管部8插在阀体2左侧小径位置的直管容纳腔10，并与直管容纳腔10配合，旋转换向管6的斜管部7位于阀体2内部大径位置的斜管容纳腔9，旋转换向管6可以绕直管部8的圆心转动。
具体的，旋转换向管6端部设有阀座12。阀座12的通道截面积大于等于旋转换向管6流道L的截面积，阀座12设有过渡通道，所述过渡通道与旋转换向管6的斜管部7相通，所述过渡通道与盖体1上的盖通道3相对应并轮换接通或者封闭。
本实施例中，阀体2内大径位置的斜管容纳腔9设有驱动组件13，驱动齿圈11处于 所述斜管部7和直管部8的衔接位置，驱动齿圈11连接有驱动组件13，驱动组件13包括驱动总成14和主动齿轮15，所述驱动总成14与所述主动齿轮15连接，所述主动齿轮15与所述驱 动齿圈11啮合。
具体的，所述主动齿轮15与所述驱动齿圈11啮合方式采用外齿圈啮合，内齿圈啮 合，直齿轮啮合，斜齿轮啮合和涡轮蜗杆啮合的任意一种。
具体的，所述驱动总成14采用单一电机；或驱动总成14采用电机和减速机组合体，减速机为行星减速机，谐波减震器，涡轮蜗杆减速机，摆线减速机，硬齿面减速机；或驱动总成14采用磁力联轴器，磁传动机构，液压机构或者气动机构；所述阀体2或盖体1上设有端子 板16，驱动总成14的引线通过所述端子板16引出。
本实施例中，在盖体1上设有传感器孔17，首选盲孔，传感器孔17内部有传感器，在阀座12上设有磁块，磁块与传感器为对应关系，传感器数量与磁块数量至少一个，数量可以不同，所述传感器形式为磁力传感器 或电器开关或电磁传感器，或光电传感器，红外线或 紫外线传感器。
本实施例的平面密封低流阻换向阀的工作原理如下：初始状态下，第一体通道4通过旋转换向管6中的通道L、阀座12的过渡通道与盖通道3A接通，第二体通道5通过阀体2内部斜管容纳腔9与盖通道3B相通，即：第一体通道4与盖 通道3A导通，第二体通道5与盖通道3B导通。
当驱动组件13通过驱动齿圈11带动旋转换向管6转动后，旋转换向管6带动阀座12 旋转，阀座12与盖通道3B相通时，传感器输出到位信号，使驱动组件13停止旋转。此时第一体通道4与盖通道3B导通，第二体通道5与盖通道3A导通。
如果需要切换到初始状态，则驱动组件13带动旋转换向管6反向旋转，旋转换向管 6带动阀座12反转，使阀座12与盖通道3A相通，则第一体通道4与盖通道3A导通，第二体通道5与盖通道3B导通，此时传感器输出到位信号，驱动组件13停止转动。
实施例2
参见图3，本实施例2与上述实施例1的不同点在于，盖体1设有两个盖通道3。分别为盖通道3A和盖通道3B，盖通道3A和盖通道3B形状可以为任意形状，最佳为圆形。阀体2的外部形状任意，阀体2右端设有第一体通道4，阀体2内部为左端大径右端小径的叠柱状蛋糕结构，柱状结构为圆形或者任意异形，柱状结构被设计成斜管容纳腔9和直管容纳腔10。
[0034] 具体的，在阀体2的斜管容纳腔9外壁左侧设有第二体通道5。阀体2内部的旋转换 向管6中间有流道L，流道L内部形状为任意曲面形状或者任意流体曲面形状，旋转换向管6 的直管部8插在阀体2小径位置的直管容纳腔10，并与阀体2配合，旋转换向管6的斜管部7位 于阀体2内部大径位置的斜管容纳腔9，旋转换向管6可以绕直管部8的圆心转动。
本实施例中，在旋转换向管6的直管部8位置设有轴承19以及径向密封件20。密封 件20为轴封密封件20。增加轴承19，保证转动，密封件20提高密封性能。
本实施例中，在盖体1上设有固定挡块21，在阀座12上设有旋转挡块22，固定挡块 21与旋转挡块22对应并起到限位作用，固定挡块21与旋转挡块22数量至少一块，且固定挡块21与旋转挡块22数量可以不同。能保证旋转换向管6的转动到位精度。
本实施例中，在盖体1与旋转换向管6配合位置设有耐磨密封材料23，耐磨密封材 料23可以为单一金属或者合金，或者聚四氟材料或者复合材料，设置方式可以装配，压接， 焊接，铸造，镶嵌，喷涂。工作时，通过增加了耐磨密封件20，防止磨损损坏。
本实施例中，在旋转换向管6的直管部8位置的最右端设有弹簧件24，弹簧件24可 以是碟簧也可以是波形弹簧，矩形圆柱弹簧或者普通压簧。
本实施例中，在阀座12的旋转圆心上设有销轴孔25，在盖体1的中心上设有中心孔 26，中心孔26与销轴孔25通过销轴连接起来，阀座12与旋转换管可以绕着销轴进行旋转。
[0040]    本实施例中，在阀体2内大径位置的斜管容纳腔9设有驱动组件13，驱动组件13包括主动齿轮15、驱动总成14和端子板16。驱动齿圈11设置旋转换向管6的直管部8与斜管部7 的衔接位置，驱动总成14设置在阀体2内部，驱动齿圈11与主动齿轮15相啮合，啮合方式为 外齿圈啮合，内齿圈啮合，斜齿轮啮合，伞齿轮啮合或者涡轮蜗杆啮合。驱动总成14为电机 和减速机组合体，减速机为行星减速机，谐波减震器，涡轮蜗杆减速机，摆线减速机，硬齿面 减速机，驱动组件13也可为磁力联轴器，磁传动机构，液压机构或气动机构，在阀体2或者盖 体1上设有端子板16，驱动总成14的引线通过端子板16引出。盖体1上设有接线盒18，端子板 16引线引入到线盒中。
本实施例2中的平面密封低流阻换向阀工作原理同实施例1。
实施例3
参见图4，本实施例3与上述实施例1的不同点在于，阀体2为异形结构，并且阀体2 分解成两部分，阀体2后面为法兰连接，盖体1也为法兰，盖体1与阀体2通过法兰连接。
本实施例中，驱动组件13设置阀体2中间位置，驱动齿圈11设置在旋转换向管6的直管部8位置，驱动总成14与驱动齿圈11的啮合方式直齿轮啮合方式，斜齿轮啮合方式，伞齿轮啮合也可为涡轮蜗杆的啮合方式，在直管部8设有密封件20并设有止推轴承，弹簧件24 通过止推轴承作用在旋转换向管6的斜管部7上，从而使转动更加灵活。
本领域技术人员还可以想到的是，除此之外，弹簧件24的位置也可以设置在止推 轴承的左侧。
实施例4
参见图5和图6，本实施例4与上述实施例1的不同点在于，盖体1上设有三个以上盖通道3，阀座12设有封闭位27，阀座12不仅可以保证盖体1上的盖通道3、第一体通道4与其他通道连通，也可以起到封闭盖体1上某个盖通道3作用。
本实施例中，弹簧件24设置在靠近斜管部7位置，轴承19和密封件20设置在直管部 8端部。
除此之外，还能想到的是第二体通道5可以设置在盖体1左侧， 本领域技术人员可以想到的是，在阀体2与盖体1之间连接位置或者其他必要位置
增加密封材料进行密封，密封材料可选密封垫或者O型圈。
本领域技术人员还容易想到的是，旋转换向管6为左端与右端不同心任意形状，只 要能满足旋转能切换与盖体1上盖通道3交替连通功能即可。
本领域技术人员还容易想到的是，驱动组件13的传动方式除了齿轮传动，还可以 链传动，皮带传动或者摩擦传动。
 本领域技术人员还容易想到的是，盖体1与阀体2的连接方式是螺纹直接旋拧或者 焊接到阀体2上。
本领域技术人员还容易想到的是，电机驱动转子单元或者磁力联轴器转子部分设 置在直管部8外侧位置，在直管部8外侧设置定子单元。
  虽然，上文中已经用一般性说明及具体实施例对本发明作了详尽的描述，但在本 发明基础上，可以对之作一些修改或改进，这对本领域技术人员而言是显而易见的。因此， 在不偏离本发明精神的基础上所做的这些修改或改进，均属于本发明要求保护的范围。

Claims (10)

  1. 一种平面密封低流阻换向阀，包括盖体（1）和阀体（2），所述盖体（1）至少设有两个盖通道（3），所述阀体（2）的端部设有第一体通道（4），阀体（2）的侧部设有第二体通道（5）；其特征在于，所述阀体（2）内部设有旋转换向管（6），所述旋转换向管（6）包括互相导通的斜管部（7）和直管部（8），阀体（2）内部形成有斜管容纳腔（9）和直管容纳腔（10），所述斜管部（7）处于所述斜管容纳腔（9），所述直管部（8）处于所述直管容纳腔（10）；所述旋转换向管（6）外设有驱动齿圈（11），斜管部（7）的端部连接有阀座（12）；所述阀 座（12）设有过渡通道，所述过渡通道与旋转换向管（6）的斜管部（7）相通，所述驱动齿圈（11）带动所述旋转换向管（6）转动，所述阀座（12）跟随所述旋转换向管（6）转动，以使所述盖通道（3）与所述第一体通道（4）及第二体通道（5）交替的接通或封闭。
  2. 根据权利要求1所述的一种平面密封低流阻换向阀，其特征在于，所述阀座（12）前端 与盖体（1）配合的口径大于所述旋转换向管（6）的口径，所述旋转换向管（6）内通道与所述第一体通道（4）导通。
  3. 根据权利要求1所述的一种平面密封低流阻换向阀，其特征在于，所述驱动齿圈（11） 处于所述斜管部（7）和直管部（8）的衔接位置，驱动齿圈（11）连接有驱动组件（13），所述驱动组件（13）处于所述斜管容纳腔（9）中，驱动组件（13）包括驱动总成（14）和主动齿轮（15），所述驱动总成（14）与所述主动齿轮（15）连接，所述主动齿轮（15）与所述驱动齿圈（11）啮合，啮合方式采用外齿圈啮合，内齿圈啮合，直齿轮啮合，斜齿轮啮合和涡轮蜗杆啮合的任意一种。
  4. 根据权利要求3所述的一种平面密封低流阻换向阀，其特征在于，所述主动齿轮（15） 与所述驱动齿圈（11）啮合；所述驱动总成（14）采用单一电机；或驱动总成（14）采用电机和减速机组合体，减速机为行星减速机，谐波减震器，涡轮蜗杆减速机，摆线减速机，硬齿面减速机；或驱动总成（14）采用磁力联轴器，磁传动机构，液压机构或者气动机构； 所述阀体（2）或盖体（1）上设有端子板（16），驱动总成（14）的引线通过所述端子板（16）引出；所述盖体（1）上设有传感器孔（17），传感器孔（17）内部有传感器；所述阀座（12）上设有磁块，所述磁块与传感器为对应关系，传感器数量与磁块数量均至少一个；所述传感器形式为磁力传感器或电器开关或电磁传感器，或光电传感器，红外线或紫 外线传感器；所述阀体（2）或者盖体（1）上设有接线盒（18），端子板（16）引线引入到接线盒（18）中；传感器外侧设有传感器保护盖，传感器引线引入到接线盒（18）中；所述阀体（2）或盖体（1）设有视镜，所述视镜用于查看旋转换向管（6）的旋转状态。
  5. 根据权利要求1所述的一种平面密封低流阻换向阀，其特征在于，所述过渡通道与盖体（1）上的盖通道（3）相对应并轮换接通或者封闭。
  6. 根据权利要求1所述的一种平面密封低流阻换向阀，其特征在于，所述旋转换向管（6）的直管部（8）设有轴承（19），直管部（8）的径向或者轴向或者直管部（8）的右端面设有密封件（20）。
  7. 根据权利要求1所述的一种平面密封低流阻换向阀 ，其特征在于，所述盖体（1）设有 固定挡块（21），所述阀座（12）设有旋转挡块（22）；所述固定挡块（21）与旋转挡块（22）对应并起到限位作用，固定挡块（21）与旋转挡块（22）数量均至少为一块。
  8. 根据权利要求1所述的一种平面密封低流阻换向阀，其特征在于，所述盖体（1）与旋 转换向管（6）配合位置设有耐磨密封材料（23），耐磨密封材料（23）为单一金属或者合金，或者聚四氟材料或者复合材料，耐磨密封材料（23）的设置方式为装配，压接，焊接，铸造，镶嵌或喷涂。
  9. 根据权利要求1所述的一种平面密封低流阻换向阀，其特征在于，所述旋转换向管（6）上设有弹簧件（24），所述弹簧件（24）设在直管部（8）的外端或中间，或弹簧件（24）设在 斜管部（7）位置；弹簧件（24）为碟簧、波形弹簧，矩形圆柱弹簧或者普通压簧；所述阀座（12）的旋转圆心上设有销轴孔（25），所述盖体（1）的中心上设有中心孔（26）；所述中心孔（26）与销轴孔（25）通过销轴连接，所述阀座（12）与旋转换向管（6）围绕销轴进行旋转。
  10. 根据权利要求1所述的一种平面密封低流阻换向阀，其特征在于，所述阀座（12）设有封闭位（27），所述封闭位（27）打开或封闭所述盖体（1）上的盖通道（3）。
PCT/CN2022/079825 2021-04-06 2022-03-09 一种平面密封低流阻换向阀 WO2022213762A1 (zh)

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