WO2021077918A1 - 先导阀 - Google Patents

先导阀 Download PDF

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Publication number
WO2021077918A1
WO2021077918A1 PCT/CN2020/113437 CN2020113437W WO2021077918A1 WO 2021077918 A1 WO2021077918 A1 WO 2021077918A1 CN 2020113437 W CN2020113437 W CN 2020113437W WO 2021077918 A1 WO2021077918 A1 WO 2021077918A1
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WO
WIPO (PCT)
Prior art keywords
sleeve
valve
magnetic
pilot valve
coil
Prior art date
Application number
PCT/CN2020/113437
Other languages
English (en)
French (fr)
Inventor
陈建军
刘海波
Original Assignee
浙江盾安人工环境股份有限公司
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Publication date
Application filed by 浙江盾安人工环境股份有限公司 filed Critical 浙江盾安人工环境股份有限公司
Priority to US17/624,167 priority Critical patent/US11946562B2/en
Priority to JP2021571611A priority patent/JP7351934B2/ja
Priority to KR1020227009060A priority patent/KR20220047634A/ko
Publication of WO2021077918A1 publication Critical patent/WO2021077918A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • 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
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
    • 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
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0603—Multiple-way valves
    • F16K31/061—Sliding valves
    • F16K31/0617—Sliding valves with flat slides
    • 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
    • F16K27/048—Electromagnetically actuated 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
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • 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
    • F16K49/00—Means in or on valves for heating or cooling

Definitions

  • This application relates to the technical field of solenoid valves, in particular to a pilot valve.
  • the pilot valve is a kind of electromagnetic controlled industrial equipment, which is used to control fluid automation basic components.
  • the pilot valve uses a single electromagnet and a return spring to control the opening and closing of the pilot valve.
  • opening it is necessary to provide a high current to the solenoid to overcome the fluid pressure and spring preload, and maintain a low current after opening until the valve core is closed.
  • the solenoid will be energized for a long time and will easily generate heat. If the solenoid temperature is too high, it will affect the pilot valve The working performance of the pilot valve makes the working reliability of the pilot valve lower.
  • a pilot valve including: a valve body having a cylindrical structure; a magnetic sleeve made of a magnetically conductive material having a hollow structure, and the magnetic sleeve is sleeved and fixed to One end of the valve body; and a coil assembly sleeved on the magnetic conductive sleeve, and the coil assembly includes an electromagnetic coil wound along the circumferential direction of the magnetic conductive sleeve.
  • the valve body includes a cylindrical hollow structure valve sleeve and a valve core accommodated and installed in the valve sleeve, and the magnetic conductive sleeve is sleeved and fixed to the outer wall of one end of the valve sleeve, The side wall of one end of the valve sleeve away from the magnetic conductive sleeve is provided with an inlet and an outlet communicating with the inlet, and the valve core is slidable along the longitudinal direction of the valve sleeve to open or close the outlet .
  • the valve sleeve includes a pipe and a base.
  • the pipe has a tubular structure with the inlet and a mounting port at both ends.
  • the inlet can be communicated with the outlet, the base is sealed and fixed to the end of the pipe with the installation port, and the magnetic permeable sleeve is sleeved and fixed to the outer wall of the pipe with the end of the installation port.
  • the valve body further includes an elastic reset member, the elastic reset member is received and installed in the valve sleeve, and provides the valve core with a direction from the magnetic sleeve to the outlet Directional elasticity.
  • the outer wall of one end of the valve sleeve is provided with an installation groove, and the installation groove is arranged on the edge of the outer wall of the valve sleeve along the circumference of the valve sleeve, and the magnetic conductive sleeve is sleeved and fixed In the installation groove.
  • the projection of the electromagnetic coil on the outer surface of the magnetic sleeve is located in the outer surface of the magnetic sleeve.
  • the magnetic permeable sleeve is a hollow cylindrical structure with openings at both ends.
  • the magnetic conductive sleeve is a hollow structure with openings at both ends, and the edge of the opening at one end of the magnetic conductive sleeve is bent inward to form an annular plate-shaped mounting plate. The end of one end of the valve body abuts.
  • the mounting plate is provided with a mounting hole
  • the end surface of one end of the valve body is provided with a connecting hole at a position opposite to the mounting hole
  • the pilot valve further includes a connecting piece
  • the connecting piece shaft It penetrates the mounting hole in a position-limiting manner and is fixed in the connecting hole.
  • the coil assembly further includes a coil bobbin arranged along the circumference of the magnetic sleeve, the coil bobbin is sleeved and fixed to the outer wall of the magnetic sleeve, and the electromagnetic coil is The circumferential direction of the magnetic conductive sleeve is wound on the coil frame.
  • the solenoid coil When using the above pilot valve, the solenoid coil is energized. At this time, the solenoid coil generates a magnetic field in the valve body, and the pilot valve opens under the force of the magnetic field generated by the solenoid coil. Since the magnetic sleeve is made of magnetically conductive material, the magnetic sleeve arranged between the coil assembly and the valve body can concentrate the magnetic field generated by the electromagnetic coil, so as to increase the attraction force of the electromagnetic coil and reduce the electromagnetic field. The current on the coil reduces the power, so the temperature rise of the electromagnetic coil is lower. Therefore, during the operation of the pilot valve, even if the solenoid coil is energized for a long time, the operating temperature on the solenoid coil will not be too high, which greatly improves the working reliability of the pilot valve.
  • Fig. 1 is a schematic structural diagram of a pilot valve in a preferred embodiment of the application.
  • Fig. 2 is a schematic diagram of the structure of the valve sleeve in the pilot valve shown in Fig. 1.
  • FIG. 3 is a schematic diagram of the structure of the conduit in the valve sleeve shown in FIG.
  • FIG. 4 is a schematic diagram of the structure of the magnetic permeable sleeve in an embodiment of the application.
  • FIG. 5 is a schematic diagram of the structure of the magnetic sleeve in another embodiment of the application.
  • the pilot valve 10 in the preferred embodiment of the present application includes a valve body 100, a magnetic sleeve 200 and a coil assembly 300.
  • the valve body 100 has a cylindrical structure. Specifically, the valve body 100 has an inlet 110 and an outlet 120 that can communicate with the inlet 110. Wherein, external fluid can enter the valve body 100 through the inlet 110, and the fluid in the valve body 100 can flow out of the valve body 100 through the outlet 120.
  • the outlet 120 is opened and communicates with the inlet 110; when the pilot valve 10 is in a closed state, the outlet 120 is sealed, and the outlet 120 cannot communicate with the inlet 110 at this time.
  • the valve body 100 includes a cylindrical hollow structure valve sleeve 130 and a valve core 140 received and installed in the valve sleeve 130.
  • the valve sleeve 130 mainly plays a supporting role, and is usually made of high-strength materials such as stainless steel and alloy steel.
  • the side wall of the valve sleeve 130 is provided with an inlet 110 and an outlet 120 that can communicate with the inlet 110.
  • the valve core 140 is slidable along the longitudinal direction of the valve sleeve 130 to open or seal the outlet 120.
  • the movement of the valve core 140 in the valve sleeve 130 can realize the opening and closing of the pilot valve 10.
  • outlets 120 there are multiple outlets 120.
  • the plurality of outlets 120 are sequentially spaced and arranged along the longitudinal direction of the valve sleeve 130.
  • the number of openings 120 can be controlled, so that the pilot valve 10 can control the fluid flow.
  • the pilot valve 10 is a four-way valve at this time.
  • the valve sleeve 130 is a stainless steel sleeve. Because stainless steel not only has high strength, but also has good corrosion resistance. Therefore, setting the valve sleeve 130 to be stainless steel can not only reduce the probability of cracks and other damages in the valve sleeve 130 during use, but also reduce the probability of the valve sleeve 130 being corroded after being in contact with fluid for a long time, so that the valve sleeve 130 has The longer service life effectively prolongs the service life of the pilot valve 10.
  • the valve sleeve 130 includes a pipe 131 and a base 132.
  • the duct 131 is a tubular structure having an inlet 110 and an installation port 1311 at both ends, respectively.
  • the side wall of the pipe 131 at one end away from the installation port 1311 is provided with an outlet 120 which can communicate with the inlet 110.
  • the base 132 is sealed and fixed to the end of the pipe 131 with the installation port 1311.
  • the valve core 140 and other components can be installed in the duct 131 first, and then the base 132 is sealed and fixed to the end of the duct 131 with the installation opening 1311.
  • valve sleeve 130 as the conduit 131 and the base 132 makes the assembly of the pilot valve 10 more convenient.
  • the base 132 is detachably fixed to the end of the pipe 131 with the installation port 1311, which facilitates the maintenance of the pilot valve 10.
  • the magnetic sleeve 200 is made of a magnetic material. Therefore, the magnetic sleeve 200 has good magnetic permeability, and is generally made of cold-rolled steel (such as ST12, DC01, SPCC, etc.), alloy steel (such as Cr12, etc.) and other materials with good magnetic permeability.
  • the magnetic sleeve 200 has a hollow structure.
  • the magnetic sleeve 200 is sleeved and fixed to one end of the valve body 100.
  • the magnetic sleeve 200 may be fixedly connected to the valve body 100 by welding, threaded connection, or the like.
  • the magnetic conductive sleeve is sleeved and fixed to one end of the valve sleeve 130.
  • the outer wall of one end of the valve sleeve 130 is provided with a mounting groove 133.
  • the installation groove 133 is provided on the edge of the outer wall of the valve sleeve 130 along the circumferential direction of the valve sleeve 130.
  • the magnetic sleeve 200 is sleeved and fixed in the installation slot 133. Therefore, during the installation process of the magnetic sleeve 200, it is only necessary to set the magnetic sleeve 200 in the installation groove 133 for a fixed connection, which eliminates the need for the axial alignment of the magnetic sleeve 200 and the valve sleeve 130.
  • the installation groove 133 has an axial limiting effect on the magnetic sleeve 200, which can prevent the magnetic sleeve 200 from sliding in the direction toward the outlet 120 during the fixing process of the magnetic sleeve 200 and the valve sleeve 130, which further simplifies the magnetic sleeve 200 Assembly process.
  • the coil assembly 300 is sleeved on the magnetic sleeve 200.
  • the coil assembly 300 includes an electromagnetic coil 310 wound along the circumference of the magnetic sleeve 200.
  • the solenoid 310 needs to be energized first.
  • the solenoid 310 will generate a magnetic field in the valve body 100 after being energized, and the valve core 140 will be driven by the magnetic field force generated by the solenoid 310.
  • the valve sleeve 130 moves in the longitudinal direction to open or seal the outlet 120. Specifically, only by changing the direction of the current on the solenoid 310, the direction in which the valve core 140 moves in the valve sleeve 130 can be changed, so that the pilot valve 10 can be switched between the open and the closed state.
  • the magnetic sleeve 200 is made of a magnetically permeable material with good magnetic permeability, the magnetic sleeve 200 arranged between the coil assembly 300 and the valve body 100 can concentrate the magnetic field generated by the electromagnetic coil 310 to increase The adsorption force of the electromagnetic coil 310 is large, and the current on the electromagnetic coil 310 is reduced, so that the power is reduced, so the temperature rise of the electromagnetic coil 310 is lower. Therefore, during the operation of the pilot valve 10, even if the electromagnetic coil 310 is energized for a long time, the operating temperature on the electromagnetic coil 310 will not be too high, which greatly improves the operating reliability of the pilot valve 10.
  • the valve body 100 further includes an elastic reset member 150.
  • the elastic reset member 150 may be a spring, a rubber pad, or the like.
  • the elastic return member 150 is a spring.
  • the elastic reset member 150 is received and installed in the valve sleeve 130 and provides the valve core 140 with an elastic force directed from the magnetic sleeve 200 to the outlet 120 direction. Specifically, the elastic reset member 150 is clamped between the base 132 and the valve core 140.
  • the opening process of the pilot valve 10 is to first energize the solenoid 310, so that the spool 140 slides in the direction of the magnetic sleeve 200 from the outlet 120 under the action of the magnetic field force generated by the solenoid 310, until the outlet 120 is opened, so that The inlet 110 is communicated with the outlet 120 to realize the opening operation of the pilot valve 10, at this time the elastic reset member 150 is in a compressed state;
  • the closing process of the pilot valve 10 is to de-energize the solenoid 310. At this time, the valve core 140 slides in the direction of the outlet 120 from the magnetic sleeve 200 under the action of the elastic force provided by the elastic reset member 150 until the outlet 120 is sealed. As a result, the inlet 110 and the outlet 120 are cut off, and the closing operation of the pilot valve 10 is realized.
  • the arrangement of the elastic reset member 150 can realize the closing of the pilot valve 10 without energizing the electromagnetic coil 10, which greatly reduces the energy consumption of the pilot valve 10.
  • the radial cross-sectional shapes of the magnetic conductive sleeve 200 and the valve sleeve 130 are both circular. Setting the radial cross section of the valve sleeve 130 to a circular ring shape makes the inner wall of the valve sleeve 130 smoother, which not only makes the operation of the pilot valve 10 smoother, but also effectively reduces the resistance of the fluid in the valve sleeve 130 , Which in turn makes the operation accuracy of the pilot valve 10 higher.
  • the projection of the electromagnetic coil 310 on the outer surface of the magnetic sleeve 200 is located inside the outer surface of the magnetic sleeve 200. Therefore, the magnetic sleeve 200 can provide a more uniform adsorption force to the electromagnetic coil 310 after being energized, so that the magnetic field generated by the electromagnetic coil 310 has a better concentration effect, and further reduces the temperature rise of the electromagnetic coil 310. Therefore, the projection of the electromagnetic coil 310 on the outer surface of the magnetic sleeve 200 is located in the outer surface of the magnetic sleeve 200, which further improves the working reliability of the pilot valve 10.
  • the magnetic conductive sleeve 200 is a hollow cylindrical structure with openings at both ends. Therefore, when the magnetic sleeve 200 is installed, it is only necessary to sleeve the magnetic sleeve 200 on one end of the valve body 100 and fix it to the valve body 100 by welding or the like. Specifically, the magnetic sleeve 200 is fixedly connected to the valve body 100 by welding. Therefore, the magnetic sleeve 200 is arranged as a hollow cylindrical structure with openings at both ends, so that the structure of the magnetic sleeve 200 is relatively simple, and the processing is relatively simple, which effectively simplifies the structure of the pilot valve 10.
  • the magnetic sleeve 200 is a hollow structure with openings at both ends.
  • the edge of the opening at one end of the magnetic conductive sleeve 200 is bent inward to form an annular plate-shaped mounting plate 210.
  • the mounting plate 210 abuts on the end of one end of the valve body 100. Therefore, during the installation of the magnetic sleeve 200, the mounting plate 210 abuts against the end of one end of the valve body 100 to limit the magnetic sleeve 200 in the axial direction to facilitate the fixing of the magnetic sleeve 200.
  • the mounting plate 210 is fixedly connected to the end of one end of the valve body 100.
  • the magnetic sleeve 200 When the magnetic sleeve 200 needs to be installed on the valve sleeve 100, only the hollow cylindrical structure 121 needs to be sleeved on one end of the valve body 100, and the mounting plate 122 is fixedly connected to the end of the valve body 100. Therefore, the installation and fixation of the magnetic sleeve 200 is more convenient.
  • the mounting plate 210 is provided with mounting holes (not shown in the figure).
  • a connecting hole (not shown in the figure) is opened on the end surface of one end of the valve body 100 opposite to the mounting hole.
  • the pilot valve 10 also includes a connecting piece (not shown). The connecting piece is axially limited and penetrates the mounting hole and is fixed in the connecting hole.
  • the magnetic sleeve 200 During the installation of the magnetic sleeve 200, it is only necessary to sleeve the magnetic sleeve 200 on one end of the valve body 100, and pass the connecting piece through the mounting hole in an axially limited manner, and the connecting piece extends into the magnetic sleeve 200 One end of the inner part is penetrated and fixed in the connecting hole to realize the installation and fixing of the magnetic conductive sleeve 200 and the valve body 100. Therefore, the arrangement of the connecting piece makes the installation of the magnetic sleeve 200 more convenient.
  • the fastening connecting piece is a threaded fastener
  • the connecting hole is a threaded hole.
  • the threaded fastener penetrates through the installation hole and is screwed with the threaded hole.
  • the fixing methods of the magnetic sleeve 200 include the following situations: First, the mounting plate 210 is fixedly connected with the end of one end of the valve body 100 by a connector, so that the installation of the magnetic sleeve 200 is easier; Second, the valve body 100 and the magnetic sleeve 200 are fixedly connected by welding to improve the fixing effect of the magnetic sleeve 200 and the valve body 100; third, the mounting plate 210 is connected to the end of the valve body 100 by a connecting piece. The parts are fixedly connected, and then the magnetic sleeve 200 is welded to the valve body 100 by welding to further improve the fixing effect of the magnetic sleeve 200.
  • the coil assembly 300 further includes a coil bobbin 320 arranged along the circumference of the magnetic sleeve 200.
  • the coil bobbin 320 is sleeved and fixed to the outer wall of the magnetic conductive sleeve 200.
  • the electromagnetic coil 310 is wound on the coil frame 320 along the circumferential direction of the magnetic conductive sleeve 200.
  • the coil 310 is first wound on the coil bobbin 320 to form the coil assembly 300, and then the coil bobbin 320 is sleeved on the outer wall of the magnetic sleeve 200 and fixed, so as to realize the coil assembly 300 installation. Therefore, the coil bobbin 320 is mainly used to install the electromagnetic coil 310, and makes the installation of the electromagnetic coil 310 to the valve body 100 more convenient.
  • the electromagnetic coil 310 When the pilot valve 10 is used, the electromagnetic coil 310 is energized. At this time, the electromagnetic coil 310 generates a magnetic field in the valve body 100, and the pilot valve 10 is opened under the force of the magnetic field generated by the electromagnetic coil 310. Since the magnetic sleeve 200 is made of a magnetically conductive material, the magnetic sleeve 200 disposed between the coil assembly 300 and the valve body 100 can concentrate the magnetic field generated by the electromagnetic coil 310 to increase the magnetic field of the electromagnetic coil 310. The adsorption force is reduced, and the current on the electromagnetic coil 310 is reduced, so that the power is reduced, so the temperature rise of the electromagnetic coil 310 is lower. Therefore, during the operation of the pilot valve 10, even if the electromagnetic coil 310 is energized for a long time, the operating temperature on the electromagnetic coil 310 will not be too high, which greatly improves the operating reliability of the pilot valve 10.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

一种先导阀（10），其包括圆柱状结构的阀体（100）、由导磁材料制成的导磁套（200）及线圈组件（300）。导磁套（200）套设并固定于阀体（100）的一端。线圈组件（300）套设于导磁套（200）。线圈组件（300）包括沿导磁套（200）的周向绕设的电磁线圈（310）。由于导磁套（200）是由导磁材料制成，故设置于线圈组件（300）与阀体（100）之间的导磁套（200）可对电磁线圈（310）产生的磁场起到聚集作用，以增大电磁线圈（310）的吸附力，并降低电磁线圈（310）上的电流，从而使得功率下降，故电磁线圈（310）的温升较低。因此，在先导阀（10）工作过程中，即使给电磁线圈（310）长时间通电，电磁线圈（310）上的工作温度也不会太高，大大提高了先导阀（10）的工作可靠性。

Description

先导阀
相关申请
本申请要求2019年10月21日申请的，申请号为201921764030.4，发明名称为“先导阀”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电磁阀技术领域，特别是涉及一种先导阀。
背景技术
先导阀作为一种电磁控制的工业设备，是用来控制流体的自动化基础元件。目前，先导阀都是采用单电磁铁与复位弹簧控制先导阀的开启及关闭。开启时，需要给电磁线圈提供高电流克服流体压力与弹簧预紧力，且开启后维持低电流至阀芯关闭，电磁线圈通电时间长容易发热，若电磁线圈温度过高，则会影响先导阀的工作性能，使得先导阀的工作可靠性较低。
发明内容
根据本申请的各种实施例，提供一种先导阀，包括：阀体，为圆柱状的结构；由导磁材料制成的导磁套，为中空结构，所述导磁套套设并固定于所述阀体的一端；及线圈组件，套设于所述导磁套，所述线圈组件包括沿所述导磁套的周向绕设的电磁线圈。
在其中一个实施例中，所述阀体包括圆柱状中空结构的阀套及收容并安装于所述阀套内的阀芯，所述导磁套套设并固定于所述阀套一端的外壁，所述阀套远离所述导磁套一端的侧壁开设有入口及与所述入口可连通的出口，所述 阀芯沿所述阀套的纵长方向可滑动，以打开或密闭所述出口。
在其中一个实施例中，所述阀套包括导管及底座，所述导管为两端分别具有所述入口及安装口的管状结构，所述导管远离所述安装口一端的侧壁开设有与所述入口可连通的所述出口，所述底座密封固定于所述导管具有所述安装口的一端，所述导磁套套设并固定于所述导管具有所述安装口一端的外壁。
在其中一个实施例中，所述阀体还包括弹性复位件，所述弹性复位件收容并安装于所述阀套内，并为所述阀芯提供一由所述导磁套指向所述出口方向的弹性力。
在其中一个实施例中，所述阀套一端的外壁开设有安装槽，且所述安装槽沿所述阀套的周向设置于所述阀套外壁的边缘，所述导磁套套设并固定于所述安装槽内。
在其中一个实施例中，所述电磁线圈在所述导磁套外表面上的投影位于所述导磁套的外表面内。
在其中一个实施例中，所述导磁套为两端具有开口的中空筒状结构。
在其中一个实施例中，所述导磁套为两端具有开口的中空结构，所述导磁套一端开口的边缘向内弯折，以形成呈环形板状的安装板，所述安装板与所述阀体一端的端部抵接。
在其中一个实施例中，所述安装板开设有安装孔，所述阀体一端的端面与所述安装孔相对的位置开设有连接孔，所述先导阀还包括连接件，所述连接件轴向限位地穿设于所述安装孔并固定于所述连接孔内。
在其中一个实施例中，所述线圈组件还包括沿所述导磁套的周向设置的线圈骨架，所述线圈骨架套设并固定于所述导磁套的外壁，且所述电磁线圈沿所述导磁套的周向绕设于所述线圈骨架上。
上述先导阀，使用时，给电磁线圈通电，此时电磁线圈会在阀体内产生磁场，先导阀在电磁线圈产生的磁场力作用下打开。由于导磁套是由导磁材料制成，故设置于线圈组件与阀体之间的导磁套可对电磁线圈产生的磁场起到聚集作用，以增大电磁线圈的吸附力，并降低电磁线圈上的电流，从而使得功率下降，故电磁线圈的温升较低。因此，在先导阀工作过程中，即使给电磁线圈长时间通电，电磁线圈上的工作温度也不会太高，大大提高了先导阀的工作可靠性。
附图说明
为了更好地描述和说明这里公开的那些发明的实施例和/或示例，可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的发明、目前描述的实施例和/或示例以及目前理解的这些发明的最佳模式中的任何一者的范围的限制。
图1为本申请较佳实施例中先导阀的结构示意图。
图2为图1所示先导阀中阀套的结构示意图。
图3为图2所示阀套中导管的结构示意图。
图4为本申请一个实施例中导磁套的结构示意图。
图5为本申请另一实施例中导磁套的结构示意图。
具体实施方式
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的较佳的实施例。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对 本申请的公开内容的理解更加透彻全面。
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
请参阅图1，本申请较佳实施例中的先导阀10包括阀体100、导磁套200及线圈组件300。
请一并参阅图2，阀体100为圆柱状的结构。具体的，阀体100上具有入口110及与入口110可连通的出口120。其中，外界的流体可经入口110进入阀体100内，而阀体100内的流体可经出口120流出至阀体100外。在实际使用过程中，先导阀10处于打开状态时，出口120被打开并与入口110连通；先导阀10处于关闭状态时，出口120被密闭，此时出口120不能与入口110连通。
请再次参阅图1，在本实施例中，阀体100包括圆柱状中空结构的阀套130及收容并安装于阀套130内的阀芯140。阀套130主要起支撑作用，通常由不锈钢、合金钢等强度较大的材料制成。阀套130的侧壁开设有入口110及与入口110可连通的出口120。阀芯140沿阀套130的纵长方向可滑动，以打开或密闭出口120。由此，阀芯140在阀套130内的移动，可实现先导阀10的打开及关闭。
进一步的，在本实施例中，出口120为多个。多个出口120沿阀套130 的纵长方向依次间隔设置。在实际使用过程中，通过控制阀芯140的移动距离，以可控制打开出口120的数量，从而通过先导阀10实现对流体流量的控制。具体的，出口120为三个，此时先导阀10为四通阀。
进一步的，在本实施例中，阀套130为不锈钢套。由于不锈钢不但具有较高的强度，而且还具有良好的耐腐蚀。所以，将阀套130设置为不锈钢，不但可以降低阀套130在使用过程中发生裂纹等损伤的概率，而且也降低了阀套130与流体长时间接触后被腐蚀的概率，使得阀套130具有较长的使用寿命，进而有效地延长了先导阀10的使用寿命。
请一并参阅图3，进一步的，在本实施例中，阀套130包括导管131及底座132。导管131为两端分别具有入口110及安装口1311的管状结构。导管131远离安装口1311一端的侧壁开设有与入口110可连通的出口120。底座132密封固定于导管131具有安装口1311的一端。在实际生产制造过程中，可先将阀芯140等零部件安装于导管131内，再将底座132密封固定于导管131具有安装口1311的一端。因此，将阀套130设置为导管131及底座132，使得先导阀10的装配更为方便。具体的，底座132可拆卸地固定于导管131具有安装口1311的一端，有利于先导阀10的维修。
导磁套200由导磁材料制成。由此，导磁套200具有较好的导磁性，一般由冷轧钢(例如ST12、DC01、SPCC等)、合金钢(例如Cr12等)等导磁性较好的材料制成。导磁套200为中空结构。导磁套200套设并固定于阀体100的一端。导磁套200可以通过焊接、螺纹连接等与阀体100固定连接。具体的，导磁套套设并固定于阀套130的一端。
请再次参阅图1至图3，在本实施例中，阀套130一端的外壁开设有安装槽133。安装槽133沿阀套130的周向设置于阀套130外壁的边缘。导磁套200 套设并固定于安装槽133内。由此，在导磁套200安装过程中，只需要将导磁套200套设于安装槽133内进行固定连接即可，省去了导磁套200与阀套130进行轴向找准的过程，大大简化了导磁套200的装配过程。而且，安装槽133对导磁套200具有轴向限位的作用，可避免在导磁套200与阀套130固定过程中沿朝向出口120的方向滑动的情况，进一步简化的导磁套200的装配过程。
请再次参阅图1，线圈组件300套设于导磁套200。线圈组件300包括沿导磁套200的周向绕设的电磁线圈310。当需要打开先导阀10时，需要先给电磁线圈310通电，此时通电后的电磁线圈310会在阀体100内产生磁场，而阀芯140则在电磁线圈310产生的磁场力的作用下沿阀套130的纵长方向移动，以打开或密闭出口120。具体的，只需要改变电磁线圈310上电流的方向，就可以改变阀芯140在阀套130内移动的方向，从而实现先导阀10在打开及关闭状态之间的切换。
由于导磁套200是由导磁性较好的导磁材料制成，故设置于线圈组件300与阀体100之间的导磁套200可对电磁线圈310产生的磁场起到聚集作用，以增大电磁线圈310的吸附力，并降低电磁线圈310上的电流，从而使得功率下降，故电磁线圈310的温升较低。因此，在先导阀10工作过程中，即使给电磁线圈310长时间通电，电磁线圈310上的工作温度也不会太高，大大提高了先导阀10的工作可靠性。
请再次参阅图1，在本实施例中，阀体100还包括弹性复位件150。弹性复位件150可以为弹簧、橡胶垫块等。具体在本实施例中，弹性复位件150为弹簧。弹性复位件150收容并安装于阀套130内，并为阀芯140提供一由导磁套200指向120出口120方向的弹性力。具体的，弹性复位件150夹持于底座132与阀芯140之间。
先导阀10的打开过程为，先是给电磁线圈310通电，使得阀芯140在电磁线圈310产生的磁场力的作用下由出口120指向导磁套200的方向滑动，直至出口120被打开，从而使得入口110与出口120连通，实现先导阀10的打开操作，此时弹性复位件150处于压缩状态；
先导阀10的关闭过程为，给电磁线圈310断电，此时阀芯140在弹性复位件150提供的弹性力的作用下由导磁套200指向出口120的方向滑动，直至出口120被密闭，从而使得入口110与出口120被切断，实现先导阀10的关闭操作。
由此，弹性复位件150的设置，不需要给电磁线圈10通电，就可以实现先导阀10的关闭，大大降低了先导阀10的能耗。
在本实施例中，导磁套200及阀套130的径向截面形状均为圆环形。将阀套130的径向截面设置为圆环形，使得阀套130的内壁更为光滑，不但使得先导阀10的运行更为顺畅，而且还有效地减小了流体在阀套130内的阻力，进而使得先导阀10的运行精度更高。而将导磁套200的径向截面设置为圆环形，不但可有效地增大导磁套200与阀套110之间的接触面积，从而提高导磁套200与阀套130之间的固定效果，而且还使得有利于线圈310产生磁场的聚集。
请再次参阅图1，在本实施例中，电磁线圈310在导磁套200外表面上的投影位于导磁套200的外表面内。故导磁套200可对通电后的电磁线圈310提供更为均匀的吸附力，使得电磁线圈310产生的磁场的聚集效果更好，进一步降低了电磁线圈310的温升。因此，使电磁线圈310在导磁套200外表面上的投影位于导磁套200的外表面内，进一步提高了先导阀10的工作可靠性。
请一并参阅图4，在一个实施例中，导磁套200为两端具有开口的中空筒状结构。由此，在导磁套200安装时，只需要将导磁套200套设于阀体100的 一端，并通过焊接等方式与阀体100固定即可。具体的，导磁套200通过焊接与阀体100固定连接。由此，将导磁套200设置为两端具有开口的中空筒状结构，使得导磁套200的结构较为简单，加工也较为简单，有效地简化了先导阀10的结构。
请一并参阅图5，在另一个实施例中，导磁套200为两端具有开口的中空结构。导磁套200一端开口的边缘向内弯折，以形成呈环形板状的安装板210。安装板210与阀体100一端的端部抵接。由此，在导磁套200安装过程中，安装板210与阀体100一端的端部抵接，以对导磁套200起到轴向限位的作用，以方便导磁套200的固定。具体的，安装板210与阀体100一端的端部固定连接。当需要将导磁套200安装于阀套100上时，只需要将中空筒状结构121套设于阀体100的一端，并将安装板122与阀体100一端的端部固定连接即可，故导磁套200的安装固定更为方便。
进一步的，在本实施例中，安装板210上开设有安装孔(图未示)。阀体100一端的端面与安装孔相对的位置开设有连接孔(图未示)。先导阀10还包括连接件(图未示)。连接件轴向限位地穿设于安装孔并固定于连接孔内。在导磁套200安装过程中，只需要将导磁套200套设于阀体100的一端，并将连接件轴向限位地穿设于安装孔中，连接件伸入到导磁套200内的一端穿设并固定于连接孔内，即可实现导磁套200与阀体100的安装及固定。由此，连接件的设置，使得导磁套200的安装更为方便。
具体的，紧固连接件为螺纹紧固件，连接孔为螺纹孔。螺纹紧固件穿设于安装孔并与螺纹孔螺接。由此，导磁套200与阀体100实现可拆卸地连接，使得导磁套200的拆装更为方便。因此，在实际使用过程中，即使发生导磁套200损坏等情况，也可将对导磁套200进行更换，有效地延长了先导阀10的使 用寿命。
需要说明的是，导磁套200的固定方式包括以下几种情况：第一，利用连接件将安装板210与阀体100一端的端部固定连接，使得导磁套200的安装更为简便；第二，通过焊接的方式，将阀体100及导磁套200固定连接，提高导磁套200与阀体100的固定效果；第三，利用连接件将安装板210与阀体100一端的端部固定连接，再通过焊接的方式，将导磁套200焊接于阀体100上，进一步提高导磁套200的固定效果。
请再次参阅图1，在本实施例中，线圈组件300还包括沿导磁套200的周向设置的线圈骨架320。线圈骨架320套设并固定于导磁套200的外壁。电磁线圈310沿导磁套200的周向绕设于线圈骨架320上。在先导阀10的加工制造过程中，先将线圈310绕设于线圈骨架320上以形成线圈组件300，再将线圈骨架320套设于导磁套200的外壁并固定，从而实现线圈组件300的安装。由此，线圈骨架320主要用于安装电磁线圈310，并使得电磁线圈310向阀体100的安装更为方便。
上述先导阀10，使用时，给电磁线圈310通电，此时电磁线圈310会在阀体100内产生磁场，先导阀10在电磁线圈310产生的磁场力作用下打开。由于导磁套200是由导磁材料制成，故设置于线圈组件300与阀体100之间的导磁套200可对电磁线圈310产生的磁场起到聚集作用，以增大电磁线圈310的吸附力，并降低电磁线圈310上的电流，从而使得功率下降，故电磁线圈310的温升较低。因此，在先导阀10工作过程中，即使给电磁线圈310长时间通电，电磁线圈310上的工作温度也不会太高，大大提高了先导阀10的工作可靠性。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些 技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种先导阀，其特征在于，包括：
    阀体，为圆柱状的结构；
    由导磁材料制成的导磁套，为中空结构，所述导磁套套设并固定于所述阀体的一端；及
    线圈组件，套设于所述导磁套，所述线圈组件包括沿所述导磁套的周向绕设的电磁线圈。
  2. 根据权利要求1所述的先导阀，其特征在于，所述阀体包括圆柱状中空结构的阀套及收容并安装于所述阀套内的阀芯，所述导磁套套设并固定于所述阀套一端的外壁，所述阀套远离所述导磁套一端的侧壁开设有入口及与所述入口可连通的出口，所述阀芯沿所述阀套的纵长方向可滑动，以打开或密闭所述出口。
  3. 根据权利要求2所述的先导阀，其特征在于，所述阀套包括导管及底座，所述导管为两端分别具有所述入口及安装口的管状结构，所述导管远离所述安装口一端的侧壁开设有与所述入口可连通的所述出口，所述底座密封固定于所述导管具有所述安装口的一端，所述导磁套套设并固定于所述导管具有所述安装口一端的外壁。
  4. 根据权利要求2所述的先导阀，其特征在于，所述阀体还包括弹性复位件，所述弹性复位件收容并安装于所述阀套内，并为所述阀芯提供一由所述导磁套指向所述出口方向的弹性力。
  5. 根据权利要求2所述的先导阀，其特征在于，所述阀套一端的外壁开设有安装槽，且所述安装槽沿所述阀套的周向设置于所述阀套外壁的边缘，所述导磁套套设并固定于所述安装槽内。
  6. 根据权利要求1所述的先导阀，其特征在于，所述电磁线圈在所述导磁套外表面上的投影位于所述导磁套的外表面内。
  7. 根据权利要求1所述的先导阀，其特征在于，所述导磁套为两端具有开口的中空筒状结构。
  8. 根据权利要求1所述的先导阀，其特征在于，所述导磁套为两端具有开口的中空结构，所述导磁套一端开口的边缘向内弯折，以形成呈环形板状的安装板，所述安装板与所述阀体一端的端部抵接。
  9. 根据权利要求8所述的先导阀，其特征在于，所述安装板开设有安装孔，所述阀体一端的端面与所述安装孔相对的位置开设有连接孔，所述先导阀还包括连接件，所述连接件轴向限位地穿设于所述安装孔并固定于所述连接孔内。
  10. 根据权利要求1所述的先导阀，其特征在于，所述线圈组件还包括沿所述导磁套的周向设置的线圈骨架，所述线圈骨架套设并固定于所述导磁套的外壁，且所述电磁线圈沿所述导磁套的周向绕设于所述线圈骨架上。
PCT/CN2020/113437 2019-10-21 2020-09-04 先导阀 WO2021077918A1 (zh)

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CN211501810U (zh) 2020-09-15
US20220356960A1 (en) 2022-11-10
KR20220047634A (ko) 2022-04-18
JP2022540310A (ja) 2022-09-15
US11946562B2 (en) 2024-04-02

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