WO2020134406A1 - 止回阀及空调系统 - Google Patents

止回阀及空调系统 Download PDF

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Publication number
WO2020134406A1
WO2020134406A1 PCT/CN2019/112393 CN2019112393W WO2020134406A1 WO 2020134406 A1 WO2020134406 A1 WO 2020134406A1 CN 2019112393 W CN2019112393 W CN 2019112393W WO 2020134406 A1 WO2020134406 A1 WO 2020134406A1
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WIPO (PCT)
Prior art keywords
check valve
sealing member
connecting pipe
state
seal
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Application number
PCT/CN2019/112393
Other languages
English (en)
French (fr)
Inventor
刘华
张治平
龙忠铿
罗炽亮
吴宏择
王双亮
张丙
李莹
赵明智
钟丹艳
Original Assignee
珠海格力电器股份有限公司
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Application filed by 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Publication of WO2020134406A1 publication Critical patent/WO2020134406A1/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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/247—Active noise-suppression

Definitions

  • the present disclosure relates to the technical field of air-conditioning equipment, in particular to a check valve and an air-conditioning system.
  • a check valve includes a connecting pipe and a sealing member, one end of the sealing member is hinged to the connecting pipe, and the sealing member has a first state of closing the connecting pipe and allowing fluid to pass through the The second state of the connecting pipe, and in the second state, the plane where the seal is located has an acute angle with the axis of the connecting pipe.
  • the check valve further includes a hinge, the hinge is fixedly disposed on the inner wall of the connecting pipe, and the free end of the hinge is fixedly disposed with the edge of the seal.
  • a limiting structure is provided between the sealing member and the first end of the connecting pipe, and in the first state, the sealing member abuts on the limiting structure.
  • a protrusion is formed on the inner wall of the connecting pipe, and the protrusion forms the limit structure.
  • the protrusion is a ring-shaped protrusion, and a first side surface of the ring-shaped protrusion facing away from the first end is sealed with a corresponding end surface of the seal.
  • a recess is formed on the first side toward the first end, and a sealing protrusion extending into the recess is provided on the sealing member.
  • a rounded corner is provided at an edge of the sealing protrusion, and a circular arc structure corresponding to the rounded corner is provided on the recess.
  • the angle ⁇ between the plane of the seal and the axis of the connecting pipe is 90°, and/or in the second state, the seal is
  • the angle ⁇ between the plane and the axis of the connecting pipeline has an angle range of 60° ⁇ 90°.
  • the cross section of the connecting pipeline is ring-shaped, and the sealing member is a disc-shaped structure matching the ring-shape.
  • the first end of the connecting pipe forms the inlet of the check valve.
  • An air-conditioning system includes the aforementioned check valve.
  • the air conditioning system further includes a compressor and a condenser, the exhaust port of the compressor communicates with the inlet of the check valve, and the outlet of the check valve communicates with the inlet of the condenser.
  • the condenser is a shell and tube condenser.
  • the condenser has two inlets, and both inlets communicate with the outlet of the check valve.
  • One of the inlets is at the first end of the condenser, and the other is at the second end of the condenser.
  • the axis of the check valve is arranged along the horizontal plane.
  • the check valve and the air conditioning system provided by the present disclosure, by hinged the seal on the inner wall of the connecting pipeline, the process of gradually increasing the angle of the seal during the opening process, and only a part of the fluid pair is required when opening to the appropriate position
  • the opening of the seal is maintained, while other fluids are passed directly, which effectively reduces the pressure loss. It overcomes the problem that the traditional check valve needs to press the spring against the fluid to maintain the open state, and the seal is in the second state , There is no problem of back and forth vibration, so as to avoid the problem of noise caused by vibration.
  • FIG. 1 is a schematic structural diagram of a check valve and a check valve of an embodiment of an air-conditioning system provided by the present disclosure
  • FIG. 2 is a schematic structural diagram of an air-conditioning system according to an embodiment of a check valve and an air-conditioning system provided by the present disclosure
  • the check valve includes a connecting pipe 1 and a sealing member 2.
  • One end of the sealing member 2 is hinged to the connecting pipe 1, and the sealing member 2 has The first state of the connecting pipe 1 and the second state of passing fluid through the connecting pipe 1, and in the second state, the plane of the seal 2 and the axis of the connecting pipe 1 have The angle between the acute angles, that is, when the seal 2 is switched between the first state and the second state, the hinge is used to switch, so that the seal 2 forms the door body, and the connection pipe 1 forms the door frame structure.
  • the check valve further includes a hinge 3, the hinge 3 is fixedly disposed on the inner wall of the connecting pipe 1, and the free end of the hinge 3 and the edge of the seal 2 are fixedly arranged, also That is, the hinge member 3 functions as a hinge, so as to ensure the effective switching of the seal member 2 between the first state and the second state.
  • the hinge member 3 includes a hinge shaft, which ensures the connection of the pipeline 1.
  • the connection pipe 1 is connected to the outside to facilitate the user to control the opening of the seal 2 or change the hinge shaft from the outside.
  • a limiting structure 4 is provided between the sealing member 2 and the first end of the connecting pipe 1, and in the first state, the sealing member 2 abuts on the limiting structure 4 to utilize The limiting structure 4 can prevent the angle of rotation of the seal 2 from being too large to completely seal the connecting pipe 1.
  • a protrusion is formed on the inner wall of the connecting pipe 1, and the protrusion forms the limiting structure 4.
  • the protrusion is a ring-shaped protrusion, and a first side surface of the ring-shaped protrusion facing away from the first end is sealed with a corresponding end surface of the seal 2 to ensure that the seal 2 is attached to the ring-shaped protrusion
  • the connection pipeline 1 can be effectively closed at the right time.
  • a depression is formed on the first side toward the first end, and the sealing member 2 is provided with a sealing protrusion extending into the depression, so that part of the sealing member 2 extends into the depression to increase the sealing effect.
  • the edges of the sealing protrusions are provided with rounded corners, and the recesses are provided with a circular arc structure corresponding to the rounded corners, which is convenient for the sealing protrusions to enter or exit the recesses.
  • the angle ⁇ between the plane of the seal 2 and the axis of the connecting pipe 1 is 90°
  • the seal The angle ⁇ between the plane where the 2 is located and the axis of the connecting pipeline 1 is in the range of 60° ⁇ 90°, that is, the maximum opening angle of the seal 2 is 60°, so that when the fluid flows in the reverse direction,
  • the sealing member 2 is effectively pressed to the first state, thereby achieving an effective seal, and when the opening angle is greater than 60°, the force applied to the sealing member 2 by the fluid to switch the sealing member 2 to the first state cannot be The movement of the seal 2 is satisfied, so that the maximum opening angle of the seal 2 must be not less than 60°.
  • the inner wall of the pipeline 1 prevents the opening of the sealing member 2 from being too large, which may cause the problem that the sealing member 2 cannot be switched to the first state.
  • the cross section of the connecting pipe 1 is ring-shaped, and the seal 2 is a disc-shaped structure matching the ring shape.
  • the first end of the connecting pipe 1 forms the inlet of the check valve, and the second end of the connecting pipe 1 forms the outlet of the check valve.
  • An air-conditioning system includes the aforementioned check valve.
  • the air-conditioning system further includes a compressor 6 and a condenser 7.
  • the exhaust port of the compressor 6 communicates with the inlet of the check valve, and the outlet of the check valve communicates with the inlet of the condenser 7.
  • the condenser 7 is a shell and tube condenser 7.
  • the condenser 7 has two inlets, and both inlets are connected to the outlet of the check valve, and the air flow is distributed through the two inlets, so that the refrigerant carrying the lubricating oil is more evenly distributed before contacting the tile filter It is conducive to the uniform and efficient use of all filter screens.
  • the built-in oil separator 7 of the same area filter has a higher oil filtration effect in the double inlet structure.
  • One inlet is at the first end of the condenser 7 and the other inlet is at the second end of the condenser 7.
  • the axis of the check valve is arranged along the horizontal plane, so that the hinge does not need to overcome the gravity of the valve during the closing process of the check valve, thereby increasing the adjustment accuracy of the check valve.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Check Valves (AREA)

Abstract

一种止回阀，包括连接管路（1）和密封件（2），密封件（2）的一端铰接于连接管路（1）上，且密封件（2）具有封闭连接管路（1）的第一状态和使流体通过连接管路（1）的第二状态，且在第二状态时，密封件（2）所处平面与连接管路（1）的轴线具有夹角。通过将密封件铰接在连接管路的内壁上，使得密封件在开启过程时角度逐渐增大，并在开启到适当位置时仅需要部分流体对密封件的开度进行保持，而其他流体直接通过，从而有效的降低压损，克服了传统止回阀需要依靠流体的压力挤压弹簧而保持开启状态的问题，而且密封件在第二状态时，不存在来回振动的问题。一种空调系统，安装有此种止回阀，可避免因振动而产生噪音的问题。

Description

止回阀及空调系统
相关申请
本公开要求2018年12月25日申请的，申请号为201811595219.5，名称为“一种止回阀及空调系统”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本公开涉及空调设备技术领域，特别是一种止回阀及空调系统。
背景技术
在空调系统中，由于排气压力与吸气压力压之差较大，在空调系统停机时容易出现气流倒灌的现象，即冷凝器中的高压气体反向进入到压缩机排气口，导致压缩机的叶轮受到较大冲击，严重时使得叶轮出现反转，如此会降低叶轮的使用寿命，影响空调系统的可靠性。因此，技术上会在此类机组的排气管组件上配置止回阀，以防止气流倒灌。目前市面上有很多各式各样的止回阀，按照阀板的复位形式可以分为有弹簧复位型、重力复位型等，然而一些止回阀在切换时均会产生较大的压损，并且会因流体流动的动态阻力而出现振动，进而出现较大的噪音的问题。
申请内容
为了解决止回阀压损过大和噪音过大的技术问题，而提供一种压损小且噪音小的止回阀及空调系统。
一种止回阀，包括连接管路和密封件，所述密封件的一端铰接于所述连接管路上，且所述密封件具有封闭所述连接管路的第一状态和使流体通过所述连接管路的第二状态，且在所述第二状态时，所述密封件所处平面与所述连接管路的轴线具有呈锐角角度的夹角。
所述止回阀还包括铰接件，所述铰接件固定设置于所述连接管路的内壁上，且所述铰接件的自由端与所述密封件的边沿固定设置。
所述密封件和所述连接管路的第一端之间设置有限位结构，且在所述第一状态时，所述密封件抵接于所述限位结构上。
所述连接管路的内壁上形成有凸起，所述凸起形成所述限位结构。
所述凸起为环状凸起，且所述环状凸起背向所述第一端的第一侧面与所述密封件的对应端面密封设置。
所述第一侧面上向所述第一端形成凹陷，且所述密封件上设置有伸入所述凹陷的密封凸起。
所述密封凸起的边沿处设置有倒圆角，且所述凹陷上设置有与所述倒圆角相对应的圆弧结构。
在所述第一状态时，所述密封件所处平面与所述连接管路的轴线的夹角α的角度为90°，和/或在所述第二状态时，所述密封件所处平面与所述连接管路的轴线的夹角α角度范围为60°≤α＜90°。
所述密封件背离所述限位结构的侧面上设置有抵接件，且在α＝60°时，所述抵接件远离所述密封件的一端抵接于所述连接管路的内壁。
所述连接管路的横截面为环形，所述密封件为与所述环形相匹配的圆盘状结构。
所述连接管路的第一端形成所述止回阀的入口。
一种空调系统，包括上述的止回阀。
所述空调系统还包括压缩机和冷凝器，所述压缩机的排气口与所述止回阀的入口连通，且所述止回阀的出口与冷凝器的入口连通。
所述冷凝器为壳管式冷凝器。
所述冷凝器具有两个入口，且两个入口均与所述止回阀的出口连通。
一个所述入口处于所述冷凝器的第一端，另一所述入口处于所述冷凝器的第二端。
所述止回阀的轴线沿水平面设置。
本公开提供的止回阀及空调系统，通过将密封件铰接在连接管路的内壁上，使得密封件在开启过程时角度逐渐增大的过程，并在开启到适当位置时仅需要部分流体对密封件的开度进行保持，而其他流体直接通过，从而有效的降低压损，克服了传统止回阀需要依靠流体的压力挤压弹簧而保持开启状态的问题，而且密封件在第二状态时，不存在来回振动的问题，从而避免因振动而产生噪音的问题。
附图说明
图1为本公开提供的止回阀及空调系统的实施例的止回阀的结构示意图；
图2为本公开提供的止回阀及空调系统的实施例的空调系统的结构示意图；
图中：
1、连接管路；2、密封件；3、铰接件；4、限位结构；5、抵接件；6、压缩机；7、冷凝器。
具体实施方式
为了使本公开的目的、技术方案及优点更加清楚明白，以下结合附图及实施例对本公开进行进一步详细说明。应当理解，此处所描述的具体实施例仅用于解释本公开，并不用于限定本公开。
如图1和图2所示的止回阀，包括连接管路1和密封件2，所述密封件2的一端铰接于所述连接管路1上，且所述密封件2具有封闭所述连接管路1的第一状态和使流体通过所述连接管路1的第二状态，且在所述第二状态时，所述密封件2所处平面与所述连接管路1的轴线具有呈锐角角度的夹角，也即在密封件2在第一状态和第二状态切换中，是利用铰接转动的方式进行切换，使密封件2形成门体，连接管路1形成门框的结构，使得密封件2在开启过程时角度逐渐增大的过程，并在开启到适当位置时仅需要部分流体对密封件2的开度进行保持，而其他流体直接通过，从而有效的降低压损，克服了传统止回阀需要依靠流体的压力挤压弹簧而保持开启状态的问题。
所述止回阀还包括铰接件3，所述铰接件3固定设置于所述连接管路1的内壁上，且所述铰接件3的自由端与所述密封件2的边沿固定设置，也即铰接件3起到折页的作用，从而保证密封件2在第一状态和第二状态之间的有效切换，特别的所述铰接件3包括铰接轴，所述铰接轴在保证连接管路1密封的情况下贯穿所述连接管路1与外部连通，从而方便使用者由外部控制密封件2的开度或更换铰接轴。
所述密封件2和所述连接管路1的第一端之间设置有限位结构4，且在所述第一状态时，所述密封件2抵接于所述限位结构4上，利用限位结构4能够防止密封件2转动的角度过大而无法完全密封连接管路1。
所述连接管路1的内壁上形成有凸起，所述凸起形成所述限位结构4。
所述凸起为环状凸起，且所述环状凸起背向所述第一端的第一侧面与所述密封件2的对应端面密封设置，保证密封件2与环状凸起贴合时能够有效的封闭连接管路1。
所述第一侧面上向所述第一端形成凹陷，且所述密封件2上设置有伸入所述凹陷的密封凸起，使部分密封件2伸入凹陷内，增加密封效果。
所述密封凸起的边沿处设置有倒圆角，且所述凹陷上设置有与所述倒圆角相对应的圆弧结构，方便密封凸起进入或脱出凹陷。
在所述第一状态时，所述密封件2所处平面与所述连接管路1的轴线的夹角α的角度为90°，和/或在所述第二状态时，所述密封件2所处平面与所述连接管路1的轴线的夹角α角度范围为60°≤α＜90°，也即密封件2的最大开启角度为60°，使流体在反向流动时，能够有效的将密封件2压合至第一状态，从而实现有效密封，而当开启角度大于 60°时，流体给予密封件2的力中用于将密封件2切换至第一状态的分力无法满足密封件2的移动，从而密封件2的最大开启角度必须不小于60°。
所述密封件2背离所述限位结构4的侧面上设置有抵接件5，且在α＝60°时，所述抵接件5远离所述密封件2的一端抵接于所述连接管路1的内壁，防止密封件2的开度过大而造成密封件2无法切换至第一状态的问题。
所述连接管路1的横截面为环形，所述密封件2为与所述环形相匹配的圆盘状结构。
所述连接管路1的第一端形成所述止回阀的入口，所述连接管路1的第二端形成所述止回阀的出口。
一种空调系统，包括上述的止回阀。
所述空调系统还包括压缩机6和冷凝器7，所述压缩机6的排气口与所述止回阀的入口连通，且所述止回阀的出口与冷凝器7的入口连通。
所述冷凝器7为壳管式冷凝器7。
所述冷凝器7具有两个入口，且两个入口均与所述止回阀的出口连通，气流经过两个入口的分配，使得携带润滑油的冷媒在接触平铺式滤前，分配更加均匀，有利于均匀高效利用所有的滤网筛分作用，实验证明相比单入口结构，同样面积滤网的内置油分冷凝器7，双入口结构滤油效果更高。
一个所述入口处于所述冷凝器7的第一端，另一所述入口处于所述冷凝器7的第二端。
所述止回阀的轴线沿水平面设置，使得止回阀在关闭过程中铰接件无需克服阀门重力，从而增加止回阀的调节精度。
以上所述实施例仅表达了本公开的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本公开专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本公开构思的前提下，还可以做出若干变形和改进，这些都属于本公开的保护范围。因此，本公开专利的保护范围应以所附权利要求为准。

Claims (14)

  1. 一种止回阀，其特征在于：包括连接管路(1)和密封件(2)，所述密封件(2)的一端铰接于所述连接管路(1)上，且所述密封件(2)具有封闭所述连接管路(1)的第一状态和使流体通过所述连接管路(1)的第二状态，且在所述第二状态时，所述密封件(2)所处平面与所述连接管路(1)的轴线具有呈锐角角度的夹角。
  2. 根据权利要求1所述的止回阀，其特征在于：所述止回阀还包括铰接件(3)，所述铰接件(3)固定设置于所述连接管路(1)的内壁上，且所述铰接件(3)的自由端与所述密封件(2)的边沿固定设置。
  3. 根据权利要求1所述的止回阀，其特征在于：所述密封件(2)和所述连接管路(1)的第一端之间设置有限位结构(4)，且在所述第一状态时，所述密封件(2)抵接于所述限位结构(4)上。
  4. 根据权利要求3所述的止回阀，其特征在于：所述连接管路(1)的内壁上形成有凸起，所述凸起形成所述限位结构(4)。
  5. 根据权利要求3所述的止回阀，其特征在于：在所述第一状态时，所述密封件(2)所处平面与所述连接管路(1)的轴线的夹角α的角度为90°。
  6. 根据权利要求3所述的止回阀，其特征在于：在所述第二状态时，所述密封件(2)所处平面与所述连接管路(1)的轴线的夹角α角度范围为60°≤α＜90°。
  7. 根据权利要求3所述的止回阀，其特征在于：在所述第一状态时，所述密封件(2)所处平面与所述连接管路(1)的轴线的夹角α的角度为90°，并且，在所述第二状态时，所述密封件(2)所处平面与所述连接管路(1)的轴线的夹角α角度范围为60°≤α＜90°。
  8. 根据权利要求3所述的止回阀，其特征在于：所述密封件(2)背离所述限位结构(4)的侧面上设置有抵接件(5)，且在α＝60°时，所述抵接件(5)远离所述密封件(2)的一端抵接于所述连接管路(1)的内壁。
  9. 根据权利要求1所述的止回阀，其特征在于：所述连接管路(1)的横截面为环形，所述密封件(2)为与所述环形相匹配的圆盘状结构。
  10. 根据权利要求3所述的止回阀，其特征在于：所述连接管路(1)的第一端形成所述止回阀的入口。
  11. 一种空调系统，其特征在于：包括权利要求1至10中任一项所述的止回阀。
  12. 根据权利要求11所述的空调系统，其特征在于：所述空调系统还包括压缩机(6)和冷凝器(7)，所述压缩机(6)的排气口与所述止回阀的入口连通，且所述止回阀的出口与冷凝器(7)的入口连通。
  13. 根据权利要求12所述的空调系统，其特征在于：所述冷凝器(7)具有两个入口，且两个入口均与所述止回阀的出口连通。
  14. 根据权利要求11所述的空调系统，其特征在于：所述止回阀的轴线沿水平面设置。
PCT/CN2019/112393 2018-12-25 2019-10-22 止回阀及空调系统 WO2020134406A1 (zh)

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