WO2019134520A1 - 一种水流压力脉动衰减装置及其水家电设备 - Google Patents

一种水流压力脉动衰减装置及其水家电设备 Download PDF

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Publication number
WO2019134520A1
WO2019134520A1 PCT/CN2018/122195 CN2018122195W WO2019134520A1 WO 2019134520 A1 WO2019134520 A1 WO 2019134520A1 CN 2018122195 W CN2018122195 W CN 2018122195W WO 2019134520 A1 WO2019134520 A1 WO 2019134520A1
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WO
WIPO (PCT)
Prior art keywords
water
chamber
water flow
pressure pulsation
liquid
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PCT/CN2018/122195
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English (en)
French (fr)
Inventor
张肃
李忠华
李清
彭少华
程杰锋
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美的集团股份有限公司
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Application filed by 美的集团股份有限公司 filed Critical 美的集团股份有限公司
Publication of WO2019134520A1 publication Critical patent/WO2019134520A1/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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/04—Devices damping pulsations or vibrations in fluids
    • F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
    • F16L55/05—Buffers therefor
    • F16L55/052—Pneumatic reservoirs
    • F16L55/053—Pneumatic reservoirs the gas in the reservoir being separated from the fluid in the pipe
    • F16L55/054—Pneumatic reservoirs the gas in the reservoir being separated from the fluid in the pipe the reservoir being placed in or around the pipe from which it is separated by a sleeve-shaped membrane
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/04—Devices damping pulsations or vibrations in fluids
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/04—Devices damping pulsations or vibrations in fluids
    • F16L55/041—Devices damping pulsations or vibrations in fluids specially adapted for preventing vibrations

Definitions

  • the present application relates to the field of fluid noise reduction technology, but is not limited to the field of fluid noise reduction technology, and particularly relates to a water flow pressure pulsation attenuation device and a water home appliance having a water flow pressure pulsation attenuation device.
  • the present application provides a pulsation dampening device and a water home appliance having a good shock absorbing and noise reducing effect.
  • the present application is a water flow pressure pulsation attenuating device for connecting with a water pump, comprising: an outer casing having a cavity, the cavity in the outer casing is divided into an airbag cavity and a liquid cavity, and the airbag cavity is filled with an airbag ;
  • a baffle is disposed in the liquid chamber, the baffle partitions the liquid chamber into an inlet chamber and an outlet chamber, and the inlet chamber and the outlet chamber communicate with each other; the outlet chamber and the chamber
  • the liquid outlet of the outer casing is connected to the outlet, and the liquid outlet is connected with a water outlet pipe, and the liquid inlet is provided with a liquid inlet for connecting with the outlet end of the water pump.
  • the liquid inlet is aligned with the balloon chamber.
  • the water flow pressure pulsation attenuating device further includes a limiting member for positioning the airbag, the limiting member dividing the cavity of the outer casing into the airbag cavity and the liquid cavity .
  • the limiting member is a flexible diaphragm that is adhered between the balloon chamber and the liquid chamber.
  • the end cap outer casing is composed of a mating main body portion and an end cap covering the airbag chamber and one end of the liquid chamber.
  • the air bag is filled with at least one of air and nitrogen.
  • the outer side of the airbag is in close contact with the inner wall of the airbag chamber.
  • the airbag cavity has a cross-sectional area that is smaller than a cross-sectional area of the liquid cavity.
  • the present application is a water home appliance, comprising: a device housing, a main body disposed in the housing of the device, a water pump, and a water flow pressure pulsation attenuating device as described above, an outlet end of the water pump and the water flow pressure pulsation attenuating device
  • the inlet ports are connected, and the water pump is a diaphragm pump.
  • the main body includes: a water dispenser or a water purifier or a pure water machine.
  • the water flow pressure pulsation attenuating device of the present application is provided with an air bag, and absorbs the pressure pulsation of the water flow through the air bag filled with the gas, and/or reduces the vibration of the water outlet pipe connected to the outlet end of the water pump, thereby reducing the vibration of the body. Effectively suppress noise.
  • FIG. 1 is a schematic cross-sectional structural view of a water flow pressure pulsation attenuating device of the present application
  • FIG. 2 is a schematic longitudinal sectional structural view of a water flow pressure pulsation attenuating device of the present application
  • FIG. 3 is a schematic view showing the assembly structure of the water home appliance in the present application.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include one or more of the described features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • connection In the description of the present application, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise specifically defined and defined. Connected, or connected in one piece. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, which can be the internal communication of two elements or the interaction of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood on a case-by-case basis.
  • a water flow pressure pulsation attenuating device of the present application will be specifically described below with reference to an embodiment.
  • the method includes:
  • the liquid chamber is used for the passage of the water supply flow;
  • the air bag chamber 112 is filled with a gas; the gas may be various types of gases such as air.
  • the liquid chamber is provided with a baffle 103, and the baffle 103 divides the liquid chamber into an inlet chamber 104 and an outlet chamber 105, and the inlet chamber 104 and the outlet chamber 105 communicate with each other;
  • the chamber 105 communicates with the liquid outlet 107 on the outer casing 101.
  • the liquid outlet 107 is connected with a water outlet pipe 108.
  • the liquid inlet 104 is provided with a liquid inlet 106, and the liquid inlet 106 is used for The outlet ends of the water pump 200 are connected.
  • the airbag 102 is an object filled with a gas in a flexible rubber capsule, which utilizes the compressibility of the gas to achieve an elastic action; and the water flow output from the outlet end of the water pump 200 is pulsated by the pressure of the water flow. Therefore, the airbag 102 is disposed in the outer casing 101 to effectively absorb the water flow and impact the pulsating pressure, and reduce the pressure fluctuation of the water flow in the outer casing 101; and the turbulent turbulence generated by the water flowing in the liquid chamber is blocked.
  • the plate 103 is broken and restrained, so that the air bag 102 and the baffle 103 in the outer casing 101 cooperate with each other, which effectively reduces the pressure pulsation of the water flow, so that after the water flows through the water flow pressure pulsation attenuating device, the output end thereof
  • the pressure pulsation of the water flow will be greatly reduced; and the water flow noise generated by the pressure pulsation of the water flow is further reduced.
  • the water output from the water pump 200 passes through the liquid inlet 106 and enters the liquid inlet chamber 104. After the slow flow in the liquid inlet chamber 104, the pulsating pressure of the water flow is absorbed by the airbag 102; the turbulence generated by the turbulent flow of the water flow is The baffle 103 breaks and inhibits; then the water flows through the baffle 103 into the outlet chamber 105 and out of the inlet port 106.
  • the liquid inlet 106 is aligned with the airbag chamber 112; that is, the liquid inlet 106 is disposed in alignment with the airbag chamber 112, so that the impact pulsation pressure of the relatively quasi-absorbed water flow can be maximized. . Since the water flowing out from the outlet end of the water pump 200 is pressurized by the water pump 200, the water flow impact pulsation pressure is large, and the liquid inlet 106 on the outer casing 101 is aligned with the airbag chamber 112 so as to enter the outer casing 101.
  • the water flow can directly impinge on the airbag 102, and the water flow impact pulsation pressure is directly absorbed by the airbag 102, effectively avoiding the vibration of the outer casing 101 caused by the input water flow directly impacting the outer casing 101, so that the noise suppression effect is achieved. .
  • the water flow pressure pulsation attenuating device further includes a limiting member 103 for positioning the airbag 102, and the limiting member 103 divides the cavity of the outer casing 101 into the airbag cavity 1121 and the A liquid chamber that enables the airbag 102 to be fixedly mounted in the airbag chamber 112 ensures a positional relationship between the airbag 102 and the liquid inlet 106.
  • the limiting member 109 is a limiting plate, and the limiting plate is provided with a grid or a perforation.
  • the number of the perforations is two or more, and the perforations can be evenly distributed on the limiting plate;
  • the water inlet 106 enters the water flow in the outer casing 101, passes through the perforations on the limiting plate and the grille directly impacts the airbag 102, and the airbag 102 absorbs the pulsating pressure of the water flow to achieve further noise suppression effect.
  • the evenly distributed perforations on the limiting plate can uniformly apply the water pressure pulsation to the airbag 102, which is more advantageous for buffering the pressure pulsation.
  • the grid can also be evenly distributed on the limit plate.
  • the limiting member 109 is a flexible diaphragm that is adhered between the airbag chamber 112 and the liquid chamber, and the diaphragm is a flexible metal film or plastic film.
  • the flow of water into the outer casing 101 by the liquid port 106 will directly impact the diaphragm, causing the diaphragm to deform, and the other side of the diaphragm is in close contact with the airbag 102, which effectively conducts pressure into the airbag 102, and then passes through the airbag.
  • 102 absorbs the pulsating pressure of the water flow to achieve the effect of noise suppression; or the limiting member 109 can also be a limiting plate without a perforation, and the limiting plate can move up and down within a certain range.
  • the diaphragm is a flexible metal film or a plastic film that can be deformed, rather than a rigid film that cannot be deformed, so that the flexible film can be absorbed by its own flexible deformation relative to the rigid film. Impact, reducing the impact of water flow directly affects the huge noise generated by the rigid film due to the instantaneous change of specific impulse.
  • the end cover outer casing 101 is composed of a mating main body portion and an end cover 110.
  • the end cover 110 closes an end portion of the outer casing 101.
  • the end cover 110 is provided with the liquid outlet 107.
  • the water outlet pipe 108 is mounted on the end cover 110 and communicates with the liquid outlet 107.
  • the limiting plate is fixed by welding, pasting, etc. at the position between the airbag cavity 112 and the liquid chamber; and the pre-made airbag 102 is filled into the airbag cavity 112. , refilled to a predetermined pressure.
  • the end cap 110 and the outer casing 101 are joined together by hot melt to form a closed cavity; this assembly method is simple and efficient.
  • the end cap 110 is disposed on one end of the liquid discharge chamber 105, and the liquid outlet 107 is disposed on the end cover 110 and aligned with the baffle 103, and passes through the baffle
  • the water flowing into the liquid discharge chamber 105 after the plate 103 can be directly outputted from the liquid outlet 107, and the water flow is smoother, reducing the noise generated by the water flow hitting the inside of the outer casing 101.
  • the limiting member 109 and the baffle 103 are perpendicular to each other, and the baffle 103 is semi-circular, and the limiting member 109 and the baffle 103 are spaced apart from each other.
  • a fluid passage 111 for communicating the inlet chamber 104 and the outlet chamber 105 is formed between the baffle 103 and the stopper 109, and the baffle 103 is disposed on a side close to the inlet chamber 104. Due to the blocking by the baffle 103, the water flow can only enter the liquid passage 111 from the top of the baffle 103 and the surface of the limiting member 109 into the liquid discharge chamber 105 after impacting the air bag 102, which will increase the water flow. The contact surface with the airbag 102 to increase its noise reduction effect.
  • the air bag 102 is filled with air and/or helium.
  • the air bag 102 is filled with air and/or helium.
  • the outer side of the air bag 102 is in close contact with the inner wall of the air bag chamber 112, which allows the air bag 102 to completely fill the air bag chamber 112, and more effectively receives the impact pulsation pressure of the water flow.
  • the airbag 102 is completely filled with the airbag chamber 112.
  • the cross-sectional area of the airbag chamber 112 is smaller than the cross-sectional area of the liquid chamber, and the larger liquid chamber can achieve a slow flow effect on the water flow to further reduce the pulsating pressure of the water flow.
  • the present application is a water home appliance comprising: a device housing 400, a main body 300 disposed in the device housing 400, a water pump 200, and a water flow pressure pulsation attenuating device 100 as described above, the water pump 200
  • the outlet end is connected to the inlet port 106 of the water flow pressure pulsation dampening device 100, which is a diaphragm pump.
  • the diaphragm pump referred to herein is one of the volumetric pumps; it relies on a back and forth aeration of a diaphragm to change the volume of the working chamber to suck and discharge the liquid, which can transport various liquids with particles, high viscosity, and volatile Liquid.
  • the water flow outputted by the diaphragm pump passes through the water flow pressure pulsation attenuating device 100 and is then connected to the water circuit board of the water home appliance. Since the pressure pulsation of the water flow output by the diaphragm pump has been absorbed by the water flow pressure pulsation attenuating device 100, The pressure of the water flow outputted from the water flow pressure pulsation dampening device 100 will be less. Therefore, by providing the water flow pressure pulsation dampening device 100 on the water home appliance, the water flow pressure pulsation outputted by the diaphragm pump can be effectively alleviated, thereby reducing The overall noise of water appliances.
  • the main body 300 includes: a water dispenser or a water purifier or a pure water machine.
  • the water dispenser referred to in the embodiment is a device for heating or cooling the barrel of purified water and convenient for drinking;
  • the water purifier is a water treatment device for deep filtering and purifying the water according to the requirement of using water;
  • a water purifier is a water purifying device that removes or reduces water salts to a certain extent.
  • the water purifier of the water flow pressure pulsation dampening device 100 of the present application is installed and tested to obtain a noise reduction effect of a broadband frequency of 3 dB or more.

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  • General Engineering & Computer Science (AREA)
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Abstract

一种水流压力脉动衰减装置（100）及水家电设备，该水流压力脉动衰减装置（100）包括具有空腔的外壳体（101），外壳体（101）内的空腔分为气囊腔（112）和液体腔，气囊腔（112）中填充有气囊。液体腔中设有挡流板（103），挡流板（103）将液体腔分隔为进液腔（104）和出液腔（105），且进液腔（104）和出液腔（105）相互连通。出液腔（105）上接有出液口（107），出液口（107）上接有出水管道（108），进液腔（104）中设有进液口（106），进液口（106）用于与水泵（200）的出口端相连接。

Description

一种水流压力脉动衰减装置及其水家电设备
相关申请的交叉引用
本申请基于申请号为201810010643.2、申请日为2018年01月02日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及流体降噪技术领域但不限于流体降噪技术领域，具体涉及一种水流压力脉动衰减装置以及一种具有水流压力脉动衰减装置的水家电设备。
背景技术
随着人们对净水机等水家电的性能要求越来越高，高转速大功率的水泵，如：隔膜泵，也开始应用到水家电中；虽然高转速大功率水泵的使用提高了水家电的性能，但其同时带来巨大的噪声和振动，严重影响用户体验；这是水家电噪音的主要来源之一，而现有的水家电并不能很好地对该噪声进行抑制。
发明内容
本申请的提供一种具有良好的减震降噪效果的脉动衰减装置以及水家电设备。
本申请是一种水流压力脉动衰减装置，用于与水泵相连接，包括：具有空腔的外壳体，所述外壳体内的空腔分为气囊腔和液体腔，所述气囊腔中填充有气囊；
所述液体腔中设有挡流板，所述挡流板将该液体腔分隔为进液腔和出液腔，且所述进液腔和出液腔相互连通；所述出液腔与所述外壳体上的出液口相连通，所述出液口上接有出水管道，所述进液腔中设有进液口，所述进液口用于与所述水泵的出口端相连接。
在本申请中，所述进液口与所述气囊腔相对准。
在本申请中，所述水流压力脉动衰减装置还包括用于对所述气囊进行定位的限位件，所述限位件将所述外壳体的空腔分成所述气囊腔和所述液体腔。
在本申请中，所述限位件为限位板，所述限位板上设有格栅或穿孔，所述穿孔的数量为两个以上，所述穿孔均匀分布在该限位板上。
在本申请中，所述限位件为柔性的膜片，所述膜片粘贴于所述气囊腔和所述液体腔之间。
在本申请中，所述端盖外壳体由相互配合的主体部与端盖构成，所述端盖覆盖于所述气囊腔和所述液体腔的一端上。
在本申请中，所述限位件与挡流板之间相互垂直，且所述限位件与所述挡流板之间相互间隔，使得所述挡流板与所述限位件之间形成用于连通所述进液腔和所述出液腔的流体通道。
在本申请中，所述气囊中充至少有空气及氮气的其中一种气体。
在本申请中，所述气囊的外侧与所述气囊腔的内壁相紧贴。
在本申请中，所述气囊腔的横截面积小于该液体腔的横截面积。
本申请是一种水家电设备，包括：设备壳体、设置在设备壳体内的主机体、水泵以及如上所述的水流压力脉动衰减装置，所述水泵的出口端与该水流压力脉动衰减装置的进液口相连接，所述水泵为隔膜泵。
在本申请中，所述主机体包括：饮水机或净水器或纯水机。
本申请的水流压力脉动衰减装置中设有气囊，并通过填充有气体的气囊吸收水流的压力脉动，和/或，降低了与水泵出口端相接的出水管道的振动，从而降低了机体振动，有效地抑制噪声。
附图说明
为了易于说明，本申请由下述的较佳实施例及附图作详细描述。
图1为本申请的水流压力脉动衰减装置的横向剖面结构示意图；
图2为本申请的水流压力脉动衰减装置的纵向剖面结构示意图；
图3为本申请中的水家电设备的装配结构示意图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接。可以是机械连接，也可以是电连接。可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
下面以一个实施例对本申请的一种水流压力脉动衰减装置进行具体描述，请参阅图1至图3，其用于与水泵200相连接，包括：
具有空腔的外壳体101，该外壳体101内的空腔分为气囊腔112和液体腔，所述气囊腔112中填充有气囊102，该气囊102可通过粘贴、卡接等方式固定于所述气囊腔112中，该液体腔用于供水流的通过；气囊腔112内填充有气体；该气体可为各种类型的气体，例如，空气。
该液体腔中设有挡流板103，所述挡流板103将该液体腔分隔为进液腔104和出液腔105，且该进液腔104和出液腔105相互连通；该出液腔105与该外壳体101上的出液口107相连通，该出液口107上接有出水管道108，该进液腔104中设有进液口106，该进液口106用于与该水泵200的出口端相连接。
其中，该气囊102是一种在柔性的橡胶胶囊中充入气体的物体，其利用气体的可压缩性来实现弹性作用；而从水泵200的出口端所输出的水流，因为水流的压力脉动较大，故在外壳体101内设有气囊102能有效地吸收水流冲击脉动压力，降低外壳体101内的水流压力脉动；并且在液体腔内流动的水流其所产生的湍流的涡动被挡流板103破坏和抑制，故通过外壳体101内的气囊102和挡流板103的相互配合，其有效地降低了水流的压力脉动，使得在水流在通过该水流压力脉动衰减装置后，其输出端的水流的压力脉动将得到极大的降低；并进一步减少了水流的压力脉动所产生的水流噪声。
水泵200所输出的水流经过进液口106，进入到进液腔104内；经过在进液腔104中的缓流，水流的脉动压力会被气囊102所吸收；水流的湍流产生的涡动被挡流板103破坏和抑制；然后水流经过挡流板103进入出液腔105，再从进液口106流出。
在本实施例中，该进液口106与所述气囊腔112相对准；即所述进液口106对准所述气囊腔112设置，如此可以最大限度的使用相对准吸收水流的冲击脉动压力。由于从水泵200的出口端所流出的水流经过了水泵200的加压，其水流冲击脉动压力较大，将外壳体101上的进液口106对准气 囊腔112，使得进入到外壳体101内的水流能直接冲击到气囊102上，水流冲击脉动压力直接被气囊102所吸收，有效避免因输入的水流直接冲击外壳体101，而导致的外壳体101的振动，使其达到良好的抑制噪声效果。
在本实施例中，该水流压力脉动衰减装置还包括用于对该气囊102进行定位的限位件103，该限位件103将该外壳体101的空腔分成该的气囊腔1121和该的液体腔，其使得气囊102能被固定安装于所述气囊腔112中，保证了气囊102与进液口106之间的位置关系。
在本实施例中，该限位件109为限位板，该限位板上设有格栅或穿孔，该穿孔的数量为两个以上，该穿孔可均匀分布在该限位板上；从该进液口106进入到外壳体101内的水流，穿过限位板上的穿孔与格栅直接冲击到气囊102上，气囊102对水流冲击脉动压力进行吸收，以达到进一步的噪声抑制的效果。并且限位板上均匀分布的穿孔，可以将水压脉动均匀作用在气囊102上，更有利于缓冲压力脉动。栅格也可是均匀分布在该限位板上。
在另一个实施例中，该限位件109为柔性的膜片，该膜片粘贴于所述气囊腔112和液体腔之间，且该膜片为柔性的金属薄膜或塑料薄膜，从该进液口106进入到外壳体101内的水流，将直接冲击到膜片，使膜片发生形变，而膜片的另一面贴紧气囊102，其有效地将压力传导至气囊102中，再通过气囊102对水流冲击脉动压力的吸收，以达到噪声抑制的效果；或者，该限位件109也可以为不带穿孔的限位板，且该限位板可在一定范围内进行上下移动，当进液口106进入到外壳体101内的水流，将直接冲击到限位板，使限位板发生上下位移，使得气囊102被压紧，其也能有效地将压力传导至气囊102中，以达到噪声抑制的效果。
在本实施例中，所述膜片为能够发生形变的柔性的金属薄膜或塑料等薄膜，而非不能发生形变的刚性薄膜，如此，相对于刚性薄膜，柔性的薄膜可以通过自身的柔性形变吸收冲击，减少水流的冲击直接作用于刚性薄膜因具体的冲量瞬间变化产生的巨大噪声。
在本实施例中，该端盖外壳体101由相互配合的主体部与端盖110构成，该端盖110封闭该外壳体101的端部，该端盖110上设置有该的出液 口107，该出水管道108安装在该端盖110上且与该出液口107相连通。在本实施例的装配气囊102过程中，先在气囊腔112与液体腔之间的位置上通过焊接、粘贴等方式固定好限位板；再将预先制作好的气囊102填入气囊腔112内，再充气达到预定压力。然后，端盖110和外壳体101通过热熔方式连接在一起，组成封闭腔体；这种装配方式简单高效。
在本申请中，该端盖110设置于该出液腔105的一端上，且该出液口107设置于该端盖110上，并与所述挡流板103相对准，经过所述挡流板103后并进入到出液腔105中的水流能直接从出液口107中进行输出，水流流动更为顺畅，减少了因水流冲击外壳体101内侧而产生的噪声。
在本申请中，该限位件109与挡流板103之间相互垂直，且所述挡流板103为半圆形，且该限位件109与所述挡流板103之间相互间隔，使得所述挡流板103与限位件109之间形成用于连通该进液腔104和该出液腔105的流体通道111，且挡流板103设置于靠近进液腔104的一侧。由于受到挡流板103的阻挡，水流在冲击气囊102之后，只能从挡流板103顶部与限位件109的表面之间流体通道111进入至出液腔105中，其将增大了水流与气囊102的接触面，以增加其减噪效果。
在本实施例中，该气囊102中充有空气和/或氦气。若为了更好的减振效果，也可以充入密度不同于空气的气体，通过气体密度调节吸收脉动的频率；其中，气囊内的填充气体包括但不限于：氦气，氦气和空气的组合气体等。
在本申请中，该气囊102的外侧与气囊腔112的内壁相紧贴，其使得气囊102对气囊腔112的完全填充，更有效地接收水流的冲击脉动压力。通过该气囊102的外侧与气囊腔112的内壁的贴合，使得气囊102对气囊腔112的完全填充。
在本申请中，所述气囊腔112的横截面积小于该液体腔的横截面积，较大的液体腔能实现对水流的缓流作用，以进一步地降低水流的脉动压力。
请参看图3，本申请是一种水家电设备，包括：设备壳体400、设置在设备壳体400内的主机体300、水泵200和如上该的水流压力脉动衰减装置 100，该水泵200的出口端与该水流压力脉动衰减装置100的进液口106相连接，该水泵200为隔膜泵。
此处所指的隔膜泵是容积泵中的一种；其是依靠一个隔膜片的来回鼓动改变工作室容积从而吸入和排出液体的，其可以输送各种带颗粒的液体，高粘度、易挥发的液体。
隔膜泵所输出的水流通过该水流压力脉动衰减装置100后接入至水家电设备的水路板中，由于隔膜泵所输出的水流的压力脉动已被水流压力脉动衰减装置100所吸收，故从该水流压力脉动衰减装置100处输出的水流的压力将较少，因此，在水家电设备上通过设置有水流压力脉动衰减装置100，其能有效地缓解隔膜泵所输出的水流压力脉动，进而能降低水家电设备的整体噪声。
在本申请中，该主机体300包括：饮水机或净水器或纯水机。其中，本实施例中所指的饮水机是将桶装纯净水升温或降温并方便人们饮用的装置；净水器是按对水的使用要求对水质进行深度过滤、净化处理的水处理设备；纯水机是指将水中盐类除去或降低到一定程度的净水设备。
以净水机为例，经试验测量，安装有本申请的水流压力脉动衰减装置100的净水机，取得宽频3dB以上的降噪效果。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
以上该仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本申请的保护范围之内。

Claims (12)

  1. 一种水流压力脉动衰减装置，用于与水泵相连接，包括：具有空腔的外壳体，所述外壳体内的空腔分为气囊腔和液体腔，所述气囊腔中填充有气囊；
    所述液体腔中设有挡流板，所述挡流板将该液体腔分隔为进液腔和出液腔，且所述进液腔和所述出液腔相互连通；所述出液腔与所述外壳体上的出液口相连通，所述出液口上接有出水管道，所述进液腔中设有进液口，所述进液口用于与所述水泵的出口端相连接。
  2. 根据权利要求1所述的水流压力脉动衰减装置，其中，所述进液口与所述气囊腔相对准。
  3. 根据权利要求2所述的水流压力脉动衰减装置，其中，所述水流压力脉动衰减装置还包括用于对所述气囊进行定位的限位件，所述限位件将所述外壳体的空腔分成所述气囊腔和所述液体腔。
  4. 根据权利要求3所述的水流压力脉动衰减装置，其中，所述限位件为限位板，所述限位板上设有格栅或穿孔，所述穿孔的数量为两个以上，所述穿孔均匀分布在该限位板上。
  5. 根据权利要求3所述的水流压力脉动衰减装置，其中，所述限位件为柔性的膜片，所述膜片粘贴于所述气囊腔和所述液体腔之间。
  6. 根据权利要求1所述的水流压力脉动衰减装置，其中，所述外壳体由相互配合的主体部与端盖构成，所述端盖封闭所述外壳体的端部，所述端盖上设置有所述的出液口，所述出水管道安装在所述端盖上且与所述出液口相连通。
  7. 根据权利要求6所述的水流压力脉动衰减装置，其中，所述限位件与所述挡流板之间相互垂直，且所述限位件与所述挡流板之间相互间隔，使得所述挡流板与所述限位件之间形成用于连通所述进液腔和所述出液腔的 流体通道。
  8. 根据权利要求7所述的水流压力脉动衰减装置，其中，所述气囊中充至少有空气及氮气的其中一种气体。
  9. 根据权利要求8所述的水流压力脉动衰减装置，其中，所述气囊的外侧与所述气囊腔的内壁相紧贴。
  10. 根据权利要求9所述的水流压力脉动衰减装置，其中，所述气囊腔的横截面积小于该液体腔的横截面积。
  11. 一种水家电设备，其中，包括：设备壳体、设置在设备壳体内的主机体、水泵以及如权利要求1至10任一项所述的水流压力脉动衰减装置，所述水泵的出口端与该水流压力脉动衰减装置的进液口相连接。
  12. 根据权利要求11所述的水家电设备，其中，所述主机体包括：饮水机或净水器或纯水机。
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