WO2022127400A1 - 截止阀及具有其的空调*** - Google Patents

截止阀及具有其的空调*** Download PDF

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Publication number
WO2022127400A1
WO2022127400A1 PCT/CN2021/127460 CN2021127460W WO2022127400A1 WO 2022127400 A1 WO2022127400 A1 WO 2022127400A1 CN 2021127460 W CN2021127460 W CN 2021127460W WO 2022127400 A1 WO2022127400 A1 WO 2022127400A1
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WO
WIPO (PCT)
Prior art keywords
valve
opening
axis
cavity
shut
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PCT/CN2021/127460
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English (en)
French (fr)
Inventor
楼峰
寿杰
冯雄雄
傅周登
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浙江盾安人工环境股份有限公司
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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 KR1020237010591A priority Critical patent/KR20230058143A/ko
Priority to JP2023509400A priority patent/JP2023541113A/ja
Publication of WO2022127400A1 publication Critical patent/WO2022127400A1/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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • 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
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
    • F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves

Definitions

  • the present application relates to the technical field of air conditioning, and in particular, to a shut-off valve and an air conditioning system having the same.
  • the air conditioning system mainly includes components such as compressor, indoor heat exchanger, outdoor heat exchanger, shut-off valve, etc.
  • the shut-off valve is mainly used to connect the indoor unit and the outdoor unit, and plays the role of controlling the on-off of the refrigerant flow path.
  • the first opening and the second opening are at an angle of approximately 90 degrees, which means that the fluid needs to be turned greatly during the flow process, and due to the blocking of the valve core, the fluid may generate eddy currents, making the refrigerant Therefore, how to smooth the flow of the fluid and reduce the pressure loss is a technical problem to be solved by those skilled in the art.
  • the present application provides a stop valve with smooth fluid flow and small pressure loss.
  • a globe valve comprising a valve body and a valve core, the valve body has a first opening, a second opening and a valve cavity, the valve body is also provided with a filling end, and the first opening has a first axis , the second opening has a second axis, the filling end has a third axis, the valve cavity has a valve port, and the valve core is slidably arranged in the valve cavity for opening/closing the valve port; the second axis intersects the first axis at a first intersection, the third axis intersects the first axis at a second intersection, and the first intersection is along the first axis
  • the distance to the first opening is d 1
  • the distances from the second intersection to the first opening along the first axis are d 2 , d 1 and d 2 and satisfy the following relation: d 1 ⁇ d 2 .
  • the distance d 1 from the first intersection to the second opening and the distance d 2 from the second intersection to the second opening satisfy the condition of d 1 ⁇ d 2 , so that It makes the fluid flow more smoothly in the valve cavity, and the flow capacity of the fluid is stronger, which makes the turn of the flow channel relatively smooth, which can effectively reduce the pressure loss, and also makes the shut-off valve can be applied to the air conditioning system with a larger number of horses. .
  • the inner diameter of the valve port is d 3
  • the inner diameter of the second opening is d 4
  • d 3 and d 4 satisfy the following relation: d 3 ⁇ d 4 .
  • the flow capacity of the fluid flow channel can be further improved, because the inner diameter of the valve port is smaller than the inner diameter of the second opening, so that the main throttling part of the valve cavity is transferred to the valve port. , when the fluid flows in from the second opening until it reaches the valve port, the overall flow is smoother, and no obvious throttling occurs.
  • the shut-off valve further includes a first nozzle and a second nozzle, the first nozzle is fixedly connected to the first opening, and the second nozzle is fixedly connected to the second opening.
  • first connecting pipe and the second connecting pipe are respectively communicated with the valve cavity for the inflow and outflow of the fluid in the valve cavity.
  • the valve body further has a first installation hole communicating with the valve cavity, and one end of the valve core extends into the first installation hole and is slidably connected with the valve body, so The end face of the other end of the valve core has a first groove provided with an opening.
  • the arrangement of the first groove reduces the mass of the valve core, thereby improving the impact efficiency of the valve core.
  • a connecting hole is provided inside the valve core, one end of the connecting hole extends into the first installation hole and is concentric with the valve core, and the connecting hole is an internal thread hole , which is used to cooperate with the valve stem, and the valve stem drives the valve core to move vertically along the center line of the valve body.
  • valve stem when the stop valve is in operation, the valve stem is screwed into the connecting hole, and the valve stem is rotated clockwise, the valve stem and the valve body are closed, and the circulation of the internal medium is cut off. ; Rotate the valve stem counterclockwise, the valve stem and the valve body are opened, and the circulation of the internal medium is opened, which is convenient for the manipulation of the internal medium.
  • the outer circumferential surface of the valve core is further provided with a second groove, and the second groove is used for placing a sealing ring.
  • valve core and the cavity wall of the valve cavity are further provided with a screw thread pair that cooperates with each other, so that the valve core is in the valve cavity along the axial direction of the valve body. internal movement.
  • the shut-off valve further includes a valve core, the valve core is installed in the charging end, and is used for charging refrigerant into the valve cavity.
  • valve core allows the refrigerant to be charged into the refrigeration system of the split type air conditioner through the valve core and the valve nozzle when the refrigerant needs to be charged.
  • the shut-off valve further includes a bonnet, the bonnet is located at an end of the valve body away from the first opening, and covers the first installation hole.
  • the bonnet plays the role of dustproof and waterproof for the shut-off valve.
  • An air conditioning system includes a shut-off valve.
  • the shut-off valve provided by the present application satisfies d 1 by making the distance d 1 from the first intersection to the second opening and the distance d 2 from the second intersection to the second opening ⁇ d 2 conditions, so that the fluid flows more smoothly in the valve cavity, and the flow capacity of the fluid is stronger, so that the flow channel turns relatively smoothly, which can effectively reduce the pressure loss, and also makes the globe valve can be applied to Larger air conditioning system.
  • FIG. 1 is a schematic structural diagram of a cut-off valve provided by the application from a perspective
  • FIG. 2 is a schematic structural diagram of the shut-off valve provided by the present application from another perspective.
  • valve body 11, first opening; 111, first axis; 112, first nozzle; 12, second opening; 121, second axis; 122, second nozzle; 1211, first Intersection; 1212, the second intersection; 13, valve cavity; 131, valve port; 132, the first installation hole; 14, filling end; 141, the third axis; 142, valve core; 20, valve core; 21, the first a groove; 22, a connecting hole; 23, a second groove; 30, a valve cap; 40, an installation part; 41, a second installation hole.
  • a component when referred to as being “mounted on” another component, it can be directly on the other component or there may also be an intervening component.
  • a component When a component is considered to be “set on” another component, it may be directly set on the other component or there may be a co-existing centered component.
  • a component When a component is said to be “fixed” to another component, it may be directly fixed to the other component or there may also be an intervening component.
  • the present application provides a shut-off valve 100
  • the shut-off valve 100 is arranged on the refrigerant circuit between the indoor unit and the outdoor unit of the air conditioning system, and is used to open or close the refrigerant circuit. Used for vacuuming or charging refrigerant during air conditioning maintenance.
  • the shut-off valve 100 can also be applied in fields other than air conditioning systems, such as fluid pipeline transportation, petrochemical industry, and aerospace fields.
  • the globe valve 100 includes a valve body 10 and a valve core 20 , the valve body 10 has a first opening 11 , a second opening 12 and a valve cavity 13 , the valve body 10 is further provided with a filling end 14 , and the first opening 11 It has a first axis 111, the second opening 12 has a second axis 121, the filling end 14 has a third axis 141, the valve cavity 13 has a valve port 131, and the valve core 20 is slidably arranged in the valve cavity 13 for opening.
  • the first opening 11 and the second opening 12 are at an included angle of approximately 90 degrees, which means that the fluid needs to be greatly turned during the flow process, and due to the blocking of the valve core 20 , the fluid may generate eddy currents, which will increase the pressure loss of the refrigerant and increase the energy consumption.
  • the distance d 1 from the first intersection 1211 to the second opening 12 and the distance d 2 from the second intersection 1212 to the second opening 12 satisfy the condition of d 1 ⁇ d 2 , so that the fluid in the valve cavity is 13, the flow is smoother, and the fluid flow capacity is stronger, so that the flow channel turns relatively smoothly, which can effectively reduce the pressure loss, and also makes the stop valve 100 applicable to the air conditioning system with a larger number of horses.
  • the valve body 10 is a main component of the globe valve 100 . Different pressure levels have different mechanical manufacturing methods.
  • the valve body 10 is produced by a casting process. , in other embodiments, the valve body 10 may also be produced by forging or other processes.
  • valve body 10 is made of metal, which is suitable for medium and low pressure and normal temperature conditions in water treatment, light industry, petroleum, chemical and other industries, and has good sealing performance.
  • valve body 10 is integrally formed with the first opening 11 and the second opening 12; of course, in other embodiments, the valve body 10 can also be connected by welding, which is not limited here.
  • the first axis 111 and the second axis 121 form an included angle ⁇ , and the included angle ⁇ satisfies the relationship: 105° ⁇ 135°; that is, the second axis 121 is relative to the first axis 121
  • the axis 111 is inclined; compared with the existing globe valve 100 with the first axis 111 and the second axis 121 at right angles, the height of the valve body 10 can be reduced; and when the fluid flows from the second opening 12 into the valve cavity During the whole process of 13, the turning of the flow channel is relatively gentle, which can effectively reduce the pressure loss.
  • the angle of the included angle ⁇ is greater than 135°, the distance between the second opening 12 and the valve body 10 will be too small, and the processing difficulty will increase. The height of the intersection of the second opening 12 and the valve cavity 13 will also increase accordingly, so that the overall height of the valve body 10 is bound to increase, and the material cost will also increase accordingly. If the angle of the included angle ⁇ is less than 105°, the improvement effect on the fluid flow path will be reduced again.
  • the inner diameter of the valve port 131 is d 3
  • the inner diameter of the second opening 12 is d 4
  • d 3 and d 4 satisfy the following relationship: d 3 ⁇ d 4 ; in this way, the flow capacity of the fluid flow channel can be further improved, because The inner diameter of the valve port 131 is smaller than the inner diameter of the second opening 12, so that the main throttling part of the valve cavity 13 is transferred to the valve port 131.
  • the overall flow It's smoother and doesn't produce significant throttling.
  • the stop valve 100 further includes a first connecting pipe 112 and a second connecting pipe 122, the first connecting pipe 112 is fixedly connected with the first opening 11, and the second connecting pipe 122 is fixedly connected with the second opening 12, so that the first connecting pipe 112 and the The second pipes 122 are respectively communicated with the valve cavity 13 , and are used for the inflow and outflow of the fluid in the valve cavity 13 .
  • first connecting pipe 112 and the second connecting pipe 122 are both welded and fixed to the valve body 10 by brazing; of course, in other embodiments, other fixing methods can also be used, which are not described here. limited.
  • valve body 10 also has a first installation hole 132 in communication with the valve cavity 13 , one end of the valve core 20 extends into the first installation hole 132 and is slidably connected with the valve body 10 , and the end face of the other end of the valve core 20 is
  • the first groove 21 is provided with an opening, and the arrangement of the first groove 21 reduces the mass of the valve core 20 , thereby improving the impact efficiency of the valve core 20 .
  • valve core 20 is made of a rectangular material that is machined brass or aluminum; of course, in other embodiments, the valve core 20 may also be made of other materials, which is not limited herein.
  • valve core 20 is provided with a connecting hole 22, one end of the connecting hole 22 extends into the first mounting hole 132 and is concentric with the valve core 20, and the connecting hole 22 is an internal thread hole for connecting with the valve stem (Fig. (not shown) is matched and connected, and the valve stem drives the valve core 20 to move vertically along the center line of the valve body 10.
  • the valve stem is screwed into the connecting hole 22, and the valve stem is rotated clockwise.
  • the body 10 is closed to cut off the circulation of the internal medium; the valve stem is turned counterclockwise, the valve stem and the valve body 10 are opened, and the circulation of the internal medium is opened, which facilitates the manipulation of the internal medium.
  • the outer circumferential surface of the valve core 20 is also provided with a second groove 23, and the second groove 23 is used for placing a sealing ring, so that the valve core 20 is always in contact with the cavity wall of the valve cavity 13 during the movement process. maintain good sealing performance.
  • the cavity walls of the valve core 20 and the valve cavity 13 are also provided with screw pairs (not shown) that cooperate with each other, so that the valve core 20 moves in the valve cavity 13 along the axial direction of the valve body 10, so that the A torque in the valve opening direction is applied to the valve body 20 , and the valve body 20 is displaced along the axial direction of the valve body 10 by the action of the screw pair.
  • shut-off valve 100 further includes a valve core 142, and the valve core 142 is installed in the charging end 14 and used to charge the valve cavity 13 with refrigerant, so that when the refrigerant needs to be charged, the refrigerant can pass through the valve core 142 and the valve are charged into the refrigeration system of the split type air conditioner.
  • the third axis 141 of the filling end 14 is perpendicular to the second axis 121 of the valve cavity 13 ; of course, in other embodiments, the third axis 141 can also be set to be perpendicular to the first axis 111 An acute included angle that is the same or close to the second axis 121 .
  • the globe valve 100 further includes a bonnet 30 , the bonnet 30 is located at the end of the valve body 10 away from the first opening 11 and covers the first installation hole 132 , and the bonnet 30 is dust-proof and waterproof for the globe valve 100 . effect.
  • a pair of mounting portions 40 are also mounted on the outer surface of the valve body 10 .
  • the mounting portions 40 are a pair of flat flanges with a certain thickness and extend in a direction away from the outer peripheral surface of the valve body 10 .
  • a second mounting hole 41 is respectively provided on the upper portion of the valve for mounting the shut-off valve 100 into the air conditioning system.
  • the present application also provides an air conditioning system (not shown in the figure), which includes a shut-off valve 100 .
  • the air conditioning system also has the advantages of the shut-off valve 100 described above.
  • the distance d1 from the first intersection 1211 to the second opening 12 and the distance d2 from the second intersection 1212 to the second opening 12 satisfy the condition of d1 ⁇ d2, so that the fluid in the valve cavity 13
  • the flow in the middle is smoother, and the flow capacity of the fluid is stronger, so that the turning of the flow channel is relatively smooth, which can effectively reduce the pressure loss, and also enables the shut-off valve 100 to be applied to an air conditioning system with a larger number of horses.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Valve Housings (AREA)
  • Lift Valve (AREA)

Abstract

一种截止阀（100）和包括截止阀（100）的空调***。截止阀（100）包括阀体（10）和阀芯（20），阀体（10）上具有第一开口（11）、第二开口（12）以及阀腔（13），阀体（10）上还设有充注端（14），第二轴线（121）的延长线与第一轴线（111）相交于第一交点（1211），第三轴线（141）的延长线与第一轴线（111）相交于第二交点（1212），且满足以下关系式：d1<d2；其中，d1为第一交点（1211）到第一开口（11）的距离，d2为第二交点（1212）到第一开口（11）的距离。这种截止阀使得流体在阀腔中流通更加顺畅，流道转弯相对平缓，能够有效减小压力损失。

Description

截止阀及具有其的空调***
相关申请
本申请要求2020年12月15日申请的，申请号为202023018143.5，发明名称为“截止阀及具有其的空调***”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
本申请涉及空调技术领域，特别是涉及一种截止阀及具有其的空调***。
背景技术
在空调***中，主要包括压缩机、室内热交换器、室外热交换器、截止阀等部件，其中，截止阀主要用于连接室内机和室外机，起到控制冷媒流路通断的作用。
现有的截止阀，第一开口和第二开口大致呈90度夹角，即意味着流体在流动过程中需要进行较大的转向，并且由于阀芯的阻挡，流体可能会产生涡流，使得冷媒的压力损失变大，从而能耗变高，因此如何使流体的流动平缓，减少压力损失，是本领域技术人员需要解决的技术问题。
发明内容
有鉴于此，针对上述技术问题，本申请提供了一种流体流动平缓、压力损失小的截止阀。
为解决上述技术问题，本申请提供如下技术方案：
一种截止阀，包括阀体和阀芯，所述阀体上具有第一开口、第二开口以及阀腔，所述阀体上还设有充注端，所述第一开口具有第一轴线，所述第二开口具有第二轴线，所述充注端具有第三轴线，所述阀腔内具有阀口，所述阀芯滑动地设于所述阀腔内，用于启/闭所述阀口；所述第二轴线与所述第一轴线相交于第一交点，所述第三轴线与所述第一轴线相交于第二交点，所述第一交点沿着所述第一轴线到所述第一开口的距离为d 1,所述第二交点沿着所述第一轴线到所述第一开口的距离为d 2,d 1和d 2且满足以下关系式：d 1<d 2。
可以理解的是，本申请通过使得所述第一交点到所述第二开口的距离d 1与所述第二交点到所述第二开口的距离d 2满足d 1<d 2的条件，从而使得流体在所述阀腔中流通更加顺畅，流体的流通能力更强，使得流道转弯相对平缓，能够有效地减小压力损失，也使得所述截止阀可以应用于匹数更大的空调***。
在其中一个实施例中，所述阀口的内径为d 3，所述第二开口的内径为d 4，d 3和d 4满足以下关系式：d 3≤d 4。
可以理解的是，能够进一步提升流体流道的流通能力，由于所述阀口的内径小于所述第二开口的内径，这样就将所述阀腔的主要节流部位转移至所述阀口处，当流体从所述第二开口流入，直至到达所述阀口之前，整体的流动更为平缓，不会产生明显的节流。
在其中一个实施例中，所述截止阀还包括第一接管和第二接管，所述第一接管与所述第一开口固定连接，所述第二接管与所述第二开口固定连接。
可以理解的是，所述第一接管和所述第二接管分别于所述阀腔相连通，用于流体的在所述阀腔内的进出流通。
在其中一个实施例中，所述阀体内还具有与所述阀腔连通的第一安装孔， 所述阀芯的一端伸入所述第一安装孔内并与所述阀体滑动连接，所述阀芯的另一端的端面具有开口设置的第一凹槽。
可以理解的是，所述第一凹槽的设置使得所述阀芯的质量得到减轻，从而提高所述阀芯的冲击效率。
在其中一个实施例中，所述阀芯内部设有连接孔，所述连接孔的一端伸入所述第一安装孔内并与所述阀芯同心同轴，所述连接孔为内螺纹孔，用于与阀杆配合连接，所述阀杆带动所述阀芯沿所述阀体的中心线作垂直运动。
可以理解的是，当所述截止阀工作时，将所述阀杆旋入所述连接孔中，顺时针转动所述阀杆，所述阀杆与所述阀体关闭，切断内部介质的流通；逆时针转动所述阀杆，所述阀杆与所述阀体打开，开启内部介质的流通，便于对于内部介质的操控。
在其中一个实施例中，所述阀芯的外圆周面上还设置有第二凹槽，所述第二凹槽中用于放置密封圈。
可以理解的是，使得所述阀芯在运动过程中，始终与所述阀腔的腔壁之间保持良好的密封性能。
在其中一个实施例中，在所述阀芯与所述阀腔的腔壁上还设置有互相配合的螺纹副，使得所述阀芯沿所述阀体的轴向方向上在所述阀腔内运动。
可以理解的是，这样可以对所述阀芯实施开阀方向的扭矩，在所述螺纹副的作用下，所述阀芯沿着所述阀体的轴线方向发生位移。
在其中一个实施例中，所述截止阀还包括气门芯，所述气门芯安装于所述充注端内，用于对所述阀腔内充注制冷剂。
可以理解的是，所述气门芯使得当需要充注制冷剂时，制冷剂可以通过所述气门芯以及气门嘴充入到分体式空调器的制冷***内部。
在其中一个实施例中，所述截止阀还包括阀帽，所述阀帽位于所述阀体远离所述第一开口的一端，并将所述第一安装孔覆盖。
可以理解的是，所述阀帽对于所述截止阀起到了防尘和防水的作用。
本申请还提供如下技术方案：
一种空调***，包括截止阀。
与现有技术相比，本申请提供的截止阀，通过使得所述第一交点到所述第二开口的距离d 1与所述第二交点到所述第二开口的距离d 2满足d 1<d 2的条件，从而使得流体在所述阀腔中流通更加顺畅，流体的流通能力更强，使得流道转弯相对平缓，能够有效地减小压力损失，也使得所述截止阀可以应用于匹数更大的空调***。
附图说明
图1为本申请提供的截止阀的一视角的结构示意图；
图2为本申请提供的截止阀的另一视角的结构示意图。
图中各符号表示含义如下：
100、截止阀；10、阀体；11、第一开口；111、第一轴线；112、第一接管；12、第二开口；121、第二轴线；122、第二接管；1211、第一交点；1212、第二交点；13、阀腔；131、阀口；132、第一安装孔；14、充注端；141、第三轴线；142、气门芯；20、阀芯；21、第一凹槽；22、连接孔；23、第二凹槽；30、阀帽；40、安装部；41、第二安装孔。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行 清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，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，都属于本申请保护的范围。
需要说明的是，当组件被称为“装设于”另一个组件，它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“设置于”另一个组件，它可以是直接设置在另一个组件上或者可能同时存在居中组件。当一个组件被认为是“固定于”另一个组件，它可以是直接固定在另一个组件上或者可能同时存在居中组件。
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“或/及”包括一个或多个相关的所列项目的任意的和所有的组合。
请参考图1至图2，本申请提供一种截止阀100，该截止阀100设于空调***的室内机和室外机之间的制冷剂回路上，用于开启或关闭制冷剂回路，也可以用于空调维修时抽真空或充注制冷剂。当然，在其他实施例中，截止阀100还可以应用除空调***以外的领域中，例如流体管道输送、石油化工行业和航空航天领域等。
具体地，截止阀100包括阀体10和阀芯20，阀体10上具有第一开口11、第二开口12以及阀腔13，阀体10上还设有充注端14，第一开口11具有第一轴线111，第二开口12具有第二轴线121，充注端14具有第三轴线141，阀腔13内具有阀口131，阀芯20滑动地设于阀腔13内，用于启/闭阀口131；第二轴线121与第一轴线111相交于第一交点1211，第三轴线141与第一轴线111相交于第二交点1212，第一交点1211沿着第一轴线111到第一开口 11的距离为d 1,第二交点1212沿着第一轴线111到第一开口11的距离为d 2,d 1和d 2且满足以下关系式：d 1<d 2。
需要说明的是，现有的截止阀100，第一开口11和第二开口12大致呈90度夹角，即意味着流体在流动过程中需要进行较大的转向，并且由于阀芯20的阻挡，流体可能会产生涡流，使得冷媒的压力损失变大，从而能耗变高。而本实施方式中，通过使得第一交点1211到第二开口12的距离d 1与第二交点1212到第二开口12的距离d 2满足d 1<d 2的条件，从而使得流体在阀腔13中流通更加顺畅，流体的流通能力更强，使得流道转弯相对平缓，能够有效地减小压力损失，也使得截止阀100可以应用于匹数更大的空调***。
如图1及图2所示，阀体10是截止阀100中的一个主要零部件，不同的压力等级有不同的机械制造方法，在本实施方式中，阀体10采用铸造的工艺生产，当然，在其他实施方式中，阀体10还可以采用锻造或者其他方式的工艺生产。
具体地，阀体10材料为金属，适用于水处理、轻工、石油、化工等行业等中低压常温工况，其密封性能较好。
可选地，在本实施例中，阀体10与第一开口11和第二开口12均为一体成型设置；当然，在其他实施例中，也可以通过焊接等方式连接，在此不作限定。
如图1所示，所述第一轴线111与所述第二轴线121形成夹角α，且夹角α满足关系式：105°≤α≤135°；即，第二轴线121相对于第一轴线111倾斜设置；相对于现有的第一轴线111与第二轴线121呈直角的截止阀100相比，这样可以降低阀体10的高度；而且当流体从第二开口12流入并进入阀腔13的整个过程中，流道转弯相对较为平缓，能够有效地减小压力损失若夹角α 的角度＞135°，会使第二开口12与阀体10距离过小，加工难度增大，同时第二开口12与阀腔13交接处的高度也会相应增高，从而势必增大阀体10的整体高度，材料成本也会相应提升。若夹角α的角度＜105°，则对于流体流道的改善效果又会降低。
进一步地，阀口131的内径为d 3，第二开口12的内径为d 4，d 3和d 4满足以下关系式：d 3≤d 4；如此能够进一步提升流体流道的流通能力，由于阀口131的内径小于第二开口12的内径，这样就将阀腔13的主要节流部位转移至阀口131处，当流体从第二开口12流入，直至到达阀口131之前，整体的流动更为平缓，不会产生明显的节流。
进一步地，截止阀100还包括第一接管112和第二接管122，第一接管112与第一开口11固定连接，第二接管122与第二开口12固定连接，使得第一接管112和所述第二接管122分别于所述阀腔13相连通，用于流体的在所述阀腔13内的进出流通。
可选地，在本实施例中，第一接管112和第二接管122均采用钎焊的方式与阀体10焊接固定；当然，在其他实施例中，还可以采用其他固定方式，在此不作限定。
进一步地，阀体10内还具有与阀腔13连通的第一安装孔132，阀芯20的一端伸入第一安装孔132内并与阀体10滑动连接，阀芯20的另一端的端面具有开口设置的第一凹槽21，第一凹槽21的设置使得阀芯20的质量得到减轻，从而提高阀芯20的冲击效率。
可选地，在本实施例中，阀芯20采用切削加工黄铜或铝的矩形材料制成；当然，在其他实施例中，阀芯20还可以采用其他材料，在此不作限定。
进一步地，阀芯20内部设有连接孔22，连接孔22的一端伸入第一安装 孔132内并与阀芯20同心同轴，连接孔22为内螺纹孔，用于与阀杆(图未示)配合连接，阀杆带动阀芯20沿阀体10的中心线作垂直运动，当截止阀100工作时，将阀杆旋入连接孔22中，顺时针转动阀杆，阀杆与阀体10关闭，切断内部介质的流通；逆时针转动阀杆，阀杆与阀体10打开，开启内部介质的流通，如此便于对内部介质进行操控。
进一步地，阀芯20的外圆周面上还设置有第二凹槽23，第二凹槽23中用于放置密封圈，使得阀芯20在运动过程中，始终与阀腔13的腔壁之间保持良好的密封性能。同时，在阀芯20与阀腔13的腔壁上还设置有互相配合的螺纹副(图未示)，使得阀芯20沿阀体10的轴向方向上在阀腔13内运动，这样可以对阀芯20实施开阀方向的扭矩，在螺纹副的作用下，阀芯20沿着阀体10的轴线方向发生位移。
进一步地，截止阀100还包括气门芯142，气门芯142安装于充注端14内，用于对阀腔13内充注制冷剂，使得当需要充注制冷剂时，制冷剂可以通过气门芯142以及气门嘴充入到分体式空调器的制冷***内部。
在本实施例中，充注端14具有的第三轴线141与阀腔13具有的第二轴线121相垂直；当然，在其他实施例中，第三轴线141也可以设置成与第一轴线111和第二轴线121之间相同或者相接近的锐角夹角。
进一步地，截止阀100还包括阀帽30，阀帽30位于阀体10远离第一开口11的一端，并将第一安装孔132覆盖，阀帽30对于截止阀100起到了防尘和防水的作用。
如图2所示，在阀体10的外侧面上还安装有一对安装部40，安装部40为一对具有一定厚度的扁平状凸缘，并朝远离阀体10外周面的方向延伸，其上分别设置有第二安装孔41，用于将截止阀100安装到空调***中。
本申请还提供了一种空调***(图未示)，包括截止阀100。
该空调***也具有上述截止阀100的优点。
在设计截止阀100的尺寸时，通过使得第一交点1211到第二开口12的距离d1与第二交点1212到第二开口12的距离d2满足d1<d2的条件，从而使得流体在阀腔13中流通更加顺畅，流体的流通能力更强，使得流道转弯相对平缓，能够有效地减小压力损失，也使得所述截止阀100可以应用于匹数更大的空调***。
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实用新型专利范围的限制。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. 一种截止阀，包括阀体和阀芯，所述阀体上具有第一开口、第二开口以及阀腔，所述阀体上还设有充注端，所述第一开口具有第一轴线，所述第二开口具有第二轴线，所述充注端具有第三轴线，所述阀腔内具有阀口，所述阀芯滑动地设于所述阀腔内，用于启/闭所述阀口；
    其特征在于，所述第二轴线与所述第一轴线相交于第一交点，所述第三轴线与所述第一轴线相交于第二交点，所述第一交点沿着所述第一轴线到所述第一开口的距离为d 1,所述第二交点沿着所述第一轴线到所述第一开口的距离为d 2,d 1和d 2且满足以下关系式：
    d 1<d 2。
  2. 根据权利要求1所述的截止阀，其中，所述阀口的内径为d 3，所述第二开口的内径为d 4，d 3和d 4满足以下关系式：
    d 3≤d 4。
  3. 根据权利要求2所述的截止阀，其中，所述截止阀还包括第一接管和第二接管，所述第一接管与所述第一开口固定连接，所述第二接管与所述第二开口固定连接。
  4. 根据权利要求1所述的截止阀，其中，所述阀体内还具有与所述阀腔连通的第一安装孔，所述阀芯的一端伸入所述第一安装孔内并与所述阀体滑动连接，所述阀芯的另一端的端面具有开口设置的第一凹槽。
  5. 根据权利要求4所述的截止阀，其中，所述阀芯内部设有连接孔，所述连接孔的一端伸入所述第一安装孔内并与所述阀芯同心同轴，所述连接孔为内螺纹孔，用于与阀杆配合连接，所述阀杆带动所述阀芯沿所述阀体的中心线作垂直运动。
  6. 根据权利要求1所述的截止阀，其中，所述阀芯的外圆周面上还设置有第二凹槽，所述第二凹槽中用于放置密封圈。
  7. 根据权利要求1所述的截止阀，其中，在所述阀芯与所述阀腔的腔壁上还设置有互相配合的螺纹副，使得所述阀芯沿所述阀体的轴向方向上在所述阀腔内运动。
  8. 根据权利要求1所述的截止阀，其中，所述截止阀还包括气门芯，所述气门芯安装于所述充注端内，用于对所述阀腔内充注制冷剂。
  9. 根据权利要求4所述的截止阀，其中，所述截止阀还包括阀帽，所述阀帽位于所述阀体远离所述第一开口的一端，并将所述第一安装孔覆盖。
  10. 一种空调***，其特征在于，包括如权利要求1-9任意一项所述的截止阀。
PCT/CN2021/127460 2020-12-15 2021-10-29 截止阀及具有其的空调*** WO2022127400A1 (zh)

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