WO2013120409A1 - 气液分离器 - Google Patents

气液分离器 Download PDF

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Publication number
WO2013120409A1
WO2013120409A1 PCT/CN2013/070926 CN2013070926W WO2013120409A1 WO 2013120409 A1 WO2013120409 A1 WO 2013120409A1 CN 2013070926 W CN2013070926 W CN 2013070926W WO 2013120409 A1 WO2013120409 A1 WO 2013120409A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
outlet pipe
liquid separator
baffle
cylinder
Prior art date
Application number
PCT/CN2013/070926
Other languages
English (en)
French (fr)
Inventor
潘勇
张志军
邢佳波
陈枫
Original Assignee
浙江三花制冷集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江三花制冷集团有限公司 filed Critical 浙江三花制冷集团有限公司
Priority to US14/363,371 priority Critical patent/US9696071B2/en
Priority to EP13749277.3A priority patent/EP2816300B1/en
Publication of WO2013120409A1 publication Critical patent/WO2013120409A1/zh

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Classifications

    • 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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
    • 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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006—Accumulators
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1683—Dust collecting chambers; Dust collecting receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/08—Vortex chamber constructions
    • B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/23—Separators

Definitions

  • the present invention relates to a gas-liquid separator, and more particularly to a gas-liquid separator applied to a refrigeration system. Background technique
  • a gas-liquid separator is generally used in a refrigeration system and is installed between an evaporator and a compressor.
  • the main function of the gas-liquid separator is to separate the gaseous and liquid refrigerants, so that the refrigerant enters the compressor from the compressor suction port in a gaseous state, preventing liquid shock to the compressor, and returning the refrigeration oil to the compressor.
  • Lubricate the compressor to ensure proper operation of the compressor and store part of the liquid refrigerant.
  • FIG. 1 is a schematic structural view of a typical gas-liquid separator.
  • the gas-liquid separator generally includes a cylinder 105 having an inner chamber, an upper end cover 103 is disposed above the cylinder 105, an inlet tube 101 is fixedly connected to the upper end cover 103, and a lower end cover 104 is disposed below the cylinder body 105.
  • the lower end cover 104 is fixedly coupled to the outlet pipe 102.
  • the upper end cap 103, the cylindrical body 105 and the lower end cap 104 constitute a closed inner cavity having a certain volume, and the inner cavity is required to be leak-free and damaged when subjected to a certain pressure.
  • the outlet tube 102 is maintained at a certain height within the inner chamber, and the inlet tube 101 and the outlet tube 102 are coaxially disposed.
  • a filter member 106 is also disposed between the inner side of the upper end cap 103 and the outlet tube 102.
  • the gas-liquid separator can also have other specific structural forms. When the machine is assembled, the outlet pipe of the gas-liquid separator is vertically downward, and the inlet and outlet pipes are connected to the pipe on the whole machine, which is located before the compressor and after the compressor.
  • FIG. 2 is a schematic structural view of the filter member 106
  • FIG. 3 is a schematic plan view of the filter member 106 shown in FIG. 2
  • Side view The filter member 106 is mainly composed of a filter net 161 and a sieve holder 162, and an air guide hole 163 is provided in the filter holder 162.
  • the screen 161 is bent upwardly to be changed, and the screen holder 162 is -
  • the central portion is also curved upwardly in a shape that is larger than the diameter of the outlet tube 102.
  • the air guiding holes 163 are evenly disposed on the circumference of the outer side of the screen housing 162.
  • the outlet pipe 102 Since the lower end of the outlet pipe 102 is welded to the lower end cover 104, and is completely fixed by the welding portion, and the inner cavity of the cylinder 105 is maintained at a certain height and is cantilevered, the outlet pipe 102 is easily deflected during welding; Due to the small size of the welded part, the stress condition is poor, and it is easy to be damaged during use.
  • a positioning device for fixing the outlet pipe 102 is added for this problem, and the positioning device includes a positioning sleeve 201 and a support frame 202, as shown in Fig. 5.
  • the gas-liquid mixture enters from the inlet pipe 101, and the gas enters the inner cavity and passes through the filter net 161.
  • the barrier sump 163 in the filter net seat 162 enters the inner cavity of the cylinder 5, wherein the liquid is subjected to gravity. The action drops to the bottom of the inner cavity of the cylinder 5, and the gas floats under the action of an external force and enters the outlet pipe 102. After being discharged from the outlet pipe 102, it enters the compressor, and a small portion of the liquid flows out through the oil return hole of the outlet pipe 102.
  • the gas-conducting element of the gas-liquid separator has a single structure, a single assembly process, and a low material cost.
  • the present invention provides a gas-liquid separator, comprising a cylinder, an inlet pipe fixed to an upper end of the cylinder body, and an outlet pipe fixed to a lower end of the cylinder body, and further comprising a guide a gas element, the gas guiding element further comprising a baffle, a flange at one end of the baffle, and a bottom plate at the other end of the baffle, the baffle being located above the outlet pipe and shielding the air inlet of the outlet pipe.
  • the flange is fixedly connected to the inner wall of the cylinder; the bottom plate is fixedly connected to the side wall of the inlet end of the outlet pipe.
  • the air guiding element further comprises a leaf surface connected to both sides of the bottom plate, and the leaf surface is attached to the air inlet end side wall of the outlet pipe.
  • the baffle is semicircular, and the hemming is located on the arc end of the baffle - -
  • the bottom plate is located on the lower side of the linear end of the baffle.
  • the baffle is disposed obliquely.
  • the intake end of the outlet pipe is disposed as an inclined surface, and the inclined surface faces the folded edge.
  • the side wall of the inlet end of the outlet pipe is provided with a connecting surface, and the bottom plate and the connecting surface are fixedly connected by spot welding.
  • the gas-liquid separator further includes a filter member, and a lower side wall of the outlet pipe is provided with a through hole, and the filter member is connected to the through hole.
  • the lower outer wall of the outlet pipe is provided with an annular step, and the annular surface of the annular step is fixedly connected with the cylinder.
  • the outlet pipe comprises a first straight pipe located in the inner cavity of the cylinder and a second straight pipe located outside the lower end of the cylinder, the first straight pipe and the second straight pipe respectively It is fixedly connected to the cylinder.
  • the cylinder further includes an upper end cover, a lower end cover, and an intermediate body fixedly connected to the upper end cover and the lower end cover, wherein the inlet pipe is fixed to the upper end cover, and the outlet pipe is Fixing with the lower end cover, the folded edge of the air guiding element is fixed to the inner wall of the intermediate body.
  • the present invention replaces the filter member of the prior art with a gas guide member
  • the air guide member includes a baffle, a flange at one end of the baffle plate, and a bottom plate at the other end of the baffle plate;
  • An air inlet of the outlet pipe is disposed above the outlet pipe, and the flange is fixedly connected to the inner wall of the cylinder, and the bottom plate is fixedly connected to the side wall of the inlet end of the outlet pipe.
  • the gas-liquid mixture enters from the inlet pipe, and under the blocking of the gas guiding component, first falls on the baffle plate, and under the guiding action of the baffle plate, slides into the cavity of the cylinder body, wherein the liquid falls under gravity
  • the gas enters the outlet pipe under the action of an external force, and is led out into the compressor through the outlet pipe. Since the baffle of the air guiding element is inclined and blocks the air inlet of the outlet pipe, the gas-liquid mixture can slow down the flow rate when falling, and avoid the impact of the liquid and the inlet port of the outlet pipe, thereby preventing the liquid from directly falling into the outlet.
  • the tube effectively separates the gas-liquid mixture.
  • the gas guiding component of the gas-liquid separator provided by the invention can be processed from a steel plate, and the processing process is simple, which can not only effectively separate the gas-liquid mixture, but also reduce the production cost; the gas guiding component and the cylinder
  • the body and the outlet pipe are respectively fixedly connected, and also serve as a fixed outlet pipe.
  • the utility model can eliminate the setting of the positioning device for positioning the outlet pipe, and further reduce the production cost.
  • the gas-liquid separator is especially suitable for large and medium-sized refrigeration systems.
  • the baffle has a semicircular shape
  • the flange is disposed on an upper side of the arc end of the baffle
  • the bottom plate is disposed on a lower side of the linear end of the baffle;
  • the shape of the plate conforms to the cross-sectional shape of the inner cavity of the cylinder, which can expand the protection range and further prevent the liquid from splashing into the outlet pipe during the falling process.
  • the bottom surface of the bottom plate is connected with a foliar surface, and the two leaf surfaces are attached to the side wall of the inlet end of the outlet pipe to prevent the liquid from splashing and splashing when passing through the inner wall of the cylinder.
  • Export pipe At the same time, before the air guiding element and the outlet pipe are fixedly connected, the air inlet side wall of the outlet pipe can be adhered through the blade surface to achieve pre-fixing, and the process can be reduced.
  • FIG. 1 is a schematic structural view of a typical gas-liquid separator
  • FIG. 2 is a schematic structural view of a filter member in the gas-liquid separator shown in FIG. 1;
  • Figure 3 is a top plan view of the filter member shown in Figure 2;
  • Figure 4 is a schematic side view of the filter member of Figure 2;
  • FIG. 5 is a schematic structural view of another typical gas-liquid separator
  • FIG. 6 is a schematic structural view of a specific embodiment of a gas-liquid separator provided by the present invention.
  • FIG. 7 is a schematic structural view of a specific embodiment of a gas guiding component provided by the present invention.
  • FIG. 8 is a schematic view showing the installation of the air guiding member shown in FIG. 7;
  • FIG. 9 is a schematic structural view of a first embodiment of a first straight tube according to the present invention.
  • FIG. 10 is a schematic structural view of another embodiment of a gas guiding member provided by the present invention.
  • FIG. 11 is a schematic view showing the installation of the air guiding member shown in FIG. 10. detailed description
  • the core of the invention is to provide a gas-liquid separator for use in a refrigeration system.
  • the gas guiding element of the gas-liquid separator has a single structure, a single assembly process and a low material cost.
  • orientation words referred to herein are defined on the basis of the vertical downward direction of the gas-liquid separator outlet pipe. It should be understood that the use of the orientation words should not limit the claimed protection of the present application. The scope.
  • FIG. 6 is a schematic structural view of a gas-liquid separator according to an embodiment of the present invention
  • FIG. 7 is a specific embodiment of a gas guiding component provided by the present invention
  • FIG. 8 is a schematic view showing the installation of the air guiding component of FIG. 7.
  • the upper end cap 3, the intermediate body 51 and the lower end cap 4 form a sealed inner cavity having a certain volume, and the inner cavity is subjected to a certain pressure without leakage or damage.
  • the gas liquid separator can also have other specific structural forms.
  • the gas-liquid separator further includes an inlet pipe 1 disposed above the cylinder 5, and a lower end of the inlet pipe 1 is fixedly coupled to the upper end cover 3.
  • the gas-liquid separator further includes an outlet pipe 2, the outlet pipe 2 is maintained at a certain height in the inner cavity of the cylinder 5, and the lower end of the outlet pipe 2 is fixedly connected with the lower end cover 4. .
  • a gas guiding member 7 Above the outlet pipe 2, a gas guiding member 7 is disposed, and the gas guiding member 7 includes a baffle 72, a flange 71 disposed on the upper side of the baffle 72, and a lower side disposed at the other end of the baffle 72. a bottom plate 73; the baffle 72 is located above the outlet pipe 2 and blocks the air inlet of the outlet pipe 2, the flange 71 is fixedly connected to the inner wall of the intermediate body 51, and the bottom plate 73 and the outlet pipe 2 The side walls of the intake end are connected.
  • the occlusion means that the projection of the baffle 72 on the horizontal surface includes the air inlet of the outlet pipe 2, and thus the positional relationship between the bottom plate 73 and the outlet pipe 2 is further determined.
  • the outlet tube 2 is located between the plane of the flange 71 and the plane of the bottom plate 73.
  • the baffle 72 can be inclined, and after the gas-liquid mixture enters the inner cavity of the cylinder 5 through the inlet pipe 1, it first falls on the baffle 72, and the baffle 72 can not only serve as a guide but also slow down the flow rate; In addition, since the baffle 72 blocks the air inlet of the outlet pipe 2, it can also prevent the liquid from directly impacting the air inlet of the outlet pipe 2, thereby effectively preventing the liquid from entering the outlet pipe 2 and causing the gas-liquid separation to fail.
  • the baffle 72 may be disposed in a semicircular shape, which is opposite to the cross section of the inner cavity of the cylinder 5. .
  • the flange 71 is disposed on the upper side of the arc end of the shutter 72, and the bottom plate 73 is disposed on the lower side of the straight end of the shutter 72.
  • the baffle 72 can also be provided in other shapes, such as a trapezoidal shape.
  • the flange 71 is disposed on the upper side of the bottom end of the baffle 72, and the bottom plate 73 is disposed on the lower side of the lower end of the baffle.
  • connection portion of the flange 71 and the inner wall of the cylinder 5 is such that the gap between the edge of the baffle 72 and the inner wall of the cylinder 5 is as small as possible, and the protection range of the baffle 72 can be enlarged as much as possible.
  • leaf faces 74 may be provided on both sides of the bottom plate 73, and the two leaf faces 74 are fitted to the side walls of the intake end of the outlet pipe 2.
  • the air inlet end side wall of the outlet pipe 2 can be attached through its vane 74 to achieve pre-fixing.
  • the further effect of the leaf surface 74 is that if the liquid rebounds from the inner wall of the cylinder 5 during the falling process, it can be blocked by the leaf surface 74, thereby preventing the liquid from directly entering the outlet pipe 2 and causing the gas-liquid separation to fail.
  • the gas-liquid mixture enters the inner cavity of the cylinder 5 through the inlet pipe 1, and under the blocking of the gas guiding member 7, first falls on the baffle 72, and the guiding action of the baffle 72 Next, sliding down into the inner cavity of the cylinder 5, because the baffle 72 is inclined, the flow velocity of the gas-liquid mixture can be slowed down, wherein the liquid falls from the top into the bottom of the inner cavity of the cylinder 5 under the action of gravity, and the gas is under the action of external force. Entering the outlet pipe 2, passing through the outlet pipe 2, it is led into the compressor.
  • the baffle 72 blocks the air inlet of the outlet pipe 2, and the shape of the baffle 72 is compatible with the cross section of the inner cavity of the cylinder 5, and the bottom plate 73 and the vane 74 are closely attached to the outer wall of the intake end of the outlet pipe 2, effective The liquid is prevented from splashing into the outlet pipe 2 during the falling process with the inlet port of the outlet pipe 2, effectively preventing the liquid from rebounding and splashing into the outlet pipe 2 after impact with the inner wall of the cylinder 5, and then the compressor Causes a liquid strike.
  • the gas guiding element 7 can be processed from a steel plate, the processing process is single, the assembly process is simple, and the production cost is low.
  • the gas guiding member 7 provided by the present invention can not only effectively separate the gas-liquid mixture, but also reduce the production cost.
  • the air guiding element 7 is fixedly connected to the cylinder 5 and the outlet pipe 2 respectively, and also functions to fix the outlet pipe 2, thereby avoiding vibration of the outlet pipe 2 and noise generated by vibration during operation, thereby eliminating positioning.
  • the setting of the positioning device of the outlet pipe 2 further reduces the production cost.
  • FIG. 9 is a schematic structural view of a specific embodiment of an outlet pipe provided by the present invention
  • FIG. 10 is a structural diagram of another embodiment of a gas guiding component provided by the present invention
  • Fig. 11 is a schematic view showing the installation of the air guiding member shown in Fig. 10.
  • the baffle 72 blocks the intake port of the outlet pipe 1, although the inclined arrangement of the baffle 72 is maintained at an angle to the plane of the inlet port of the outlet pipe 1, it still has a certain influence on the discharge of the gas.
  • the inlet end of the outlet pipe 2 may be provided as an inclined surface, the inclined surface facing the folded edge 71.
  • the bottom plate 73 is fixedly connected to the outer wall of the upper side of the inlet end of the outlet pipe 2, and the angle between the inlet surface of the outlet pipe 2 and the baffle 72 is increased to facilitate the entry of gas into the outlet pipe 2.
  • the inlet end of the outlet pipe 2 is disposed as an inclined surface, in order to prevent the liquid from splashing back into the outlet pipe 2 after the impact rebounds from the inner wall of the cylinder 5 during the falling process, it is ensured that the blade surface 74 can block the outlet during installation.
  • connection plane 211 shown in FIG. 9
  • spot welding shown in Figure 11
  • annular step 212 on the lower outer wall of the outlet pipe 2, the specific position being the connection with the lower end cover 4.
  • the entire lower annular surface of the annular step 212 is fixedly coupled to the inner wall of the lower end cover 4, so that the fixed area of the outlet pipe 2 can be increased, and the fixing of the outlet pipe 2 can be enhanced.
  • the lower annular surface of the annular step 211 refers to a stepped surface of the annular step 211 that is vertically downward.
  • the outlet pipe 2 can be machined into two parts, namely a first straight pipe 21 located in the inner cavity of the cylinder 5 and a second straight pipe 22 located outside the lower end of the cylinder 5, the first straight pipe 21
  • the lower end and the upper end of the second straight tube 22 are fixedly coupled to the lower end cover 4, respectively.
  • the rest of the specific structural arrangement is the same as that of the above-described outlet pipe 2, and will not be described again.
  • connection can be achieved by welding, soldering or argon arc welding can be used, and other welding methods can be used. Of course, other fixed connection methods are also available.
  • the gas-liquid separator further includes a filter member 6, and the filter member 6 further includes - -
  • the outlet pipe 2 is provided with a through hole 213 in a lower side wall of the inner cavity of the cylinder 5, and the filter seat and the through hole 213 are fixedly connected (as shown in Fig. 6). Thus, a small amount of liquid in the cavity of the cylinder 5 can be led through the filter member 6 to the outlet pipe 2.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Cyclones (AREA)

Abstract

一种气液分离器，用于制冷系统，包括筒体（5）、与筒体（5）上端固定连接的进口管（1）以及与筒体（5）下端固定连接的出口管（2），还包括导气元件（7），导气元件（7）进一步包括挡板（72）、位于挡板（72）一端的折边（71）以及位于挡板（72）另一端的底板（73），挡板（72）位于出口管（2）的上方且遮挡出口管（2）的进气口；折边（71）与筒体（5）内壁固定连接；底板（73）与出口管（2）的进气端侧壁固定连接。

Description

气液分离器
[0001] 本申请要求于 2012 年 2 月 14 日提交中国专利局、 申请号为 201210032480.0、 发明名称为"气液分离器"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
[0002] 本发明涉及一种气液分离器， 特别是涉及一种应用于制冷系统的 气液分离器。 背景技术
[0003] 气液分离器一般用于制冷系统中， 安装在蒸发器与压缩机之间。 气液分离器的主要作用是分离气态和液态制冷剂， 使制冷剂均以气态的 形式从压缩机吸气口进入压缩机， 防止对压缩机造成液击， 同时回冷冻 油到压缩机中， 润滑压缩机， 保证压缩机的正常运转， 并储存部分液态 制冷剂。
[0004] 请参考图 1 , 图 1为一种典型气液分离器的结构示意图。
[0005] 气液分离器通常包括具有内腔室的筒体 105 ,筒体 105的上方设有 上端盖 103 , 上端盖 103固定连接有进口管 101 ; 筒体 105的下方设有下 端盖 104, 下端盖 104固定连接有出口管 102。 上端盖 103、 筒体 105和 下端盖 104组成具有一定容积的密闭内腔， 要求该内腔在承受一定压力 时无泄漏、 破损现象。 出口管 102在内腔内保持一定的高度， 进口管 101 和出口管 102同轴设置。 在上端盖 103的内侧和出口管 102之间还设置 有过滤部件 106。 当然， 气液分离器也可以具有其他具体结构形式。 在整 机装配时， 气液分离器的出口管竖直朝下， 进、 出口管与整机上的管子 相连， 位于蒸发器之后压缩机之前。
[0006] 请参考图 2、 图 3以图 4, 图 2为过滤部件 106的结构示意图； 图 3为图 2所示过滤部件 106的俯视示意图； 图 4为图 2所示过滤部件 106 的轴侧示意图。 过滤部件 106主要由过滤网 161、 滤网座 162组成， 在滤 网座 162上设置有导气孔 163。 滤网 161向上弯曲呈换形， 滤网座 162的 . -
中部也向上弯曲呈换形， 该换形区域的直径大于出口管 102 的直径。 导 气孔 163均匀设置在滤网座 162换形外侧的圓周上。
[0007] 由于出口管 102下端焊接在下端盖 104上， 完全依靠焊接部位定 位固定， 并且筒体 105 内腔内保持一定的高度而呈悬臂状， 所以在焊接 时出口管 102容易偏斜； 而且， 由于焊接部位尺寸小， 受力状况差， 使 用时容易损坏。 在专利 CN200520102760 中， 针对这一问题增加了固定 出口管 102的定位装置， 该定位装置包括定位套 201和支持架 202,如图 5所示。
[0008] 在工作过程中， 气液混合物从进口管 101 进入， 气体进入内腔后 通过过滤网 161 ,在滤网座 162的阻挡下滑落导气孔 163进入筒体 5内腔， 其中液体受到重力的作用下落至筒体 5 内腔底部， 气体上浮在外力的作 用下进入出口管 102,从出口管 102导出后进入压缩机内， 少部分液体通 过出口管 102的回油孔流出。
[0009] 由上描述可知， 该气液分离器中的过滤部件结构比较复杂， 导致 装配工艺复杂， 且材料成本高。 因此， 如何筒化过滤部件， 降低气液分 离器的生产成本是本领域技术人员目前需要解决的技术问题。 发明内容
[0010] 本发明的目的是提供一种气液分离器， 用于制冷系统。 所述气液 分离器的导气元件结构筒单， 装配工艺筒单且材料成本低。
[0011] 为解决上述技术问题， 本发明提供一种气液分离器， 包括筒体、 与所述筒体上端固接的进口管以及与所述筒体下端固接的出口管， 还包 括导气元件， 所述导气元件进一步包括挡板、 位于挡板一端的折边以及 位于挡板另一端的底板， 所述挡板位于所述出口管的上方且遮挡所述出 口管的进气口； 所述折边与所述筒体内壁固定连接； 所述底板与所述出 口管的进气端侧壁固定连接。
[0012] 优选地， 所述导气元件还包括连接于所述底板两侧的叶面， 所述 叶面与所述出口管的进气端侧壁贴合。
[0013] 优选地， 所述挡板为半圓形， 所述折边位于所述挡板圓弧端的上 - -
侧， 所述底板位于所述挡板直线端的下侧。
[0014] 优选地， 所述挡板倾斜设置。
[0015] 优选地， 所述出口管的进气端设置为倾斜面， 所述倾斜面朝向所 述折边。
[0016] 优选地， 所述出口管的进气端侧壁设置有连接面， 所述底板和所 述连接面通过点焊固定连接。
[0017] 优选地， 所述气液分离器还包括过滤部件， 所述出口管的下方侧 壁设置有通孔， 所述过滤部件与所述通孔连接。
[0018] 优选地， 所述出口管的下方外壁设置有环形台阶， 所述环形台阶 的环形面与所述筒体固定连接。
[0019] 优选地， 所述出口管包括位于所述筒体内腔的第一直管和位于所 述筒体下端外部的第二直管， 所述第一直管和所述第二直管分别与所述 筒体固定连接。
[0020] 优选地， 所述筒体进一步包括上端盖、 下端盖以及与所述上端盖、 所述下端盖固定连接的中间体， 所述进口管与所述上端盖固接， 所述出 口管与所述下端盖固接， 所述导气元件的折边与所述中间体的内壁固接。
[0021] 本发明用导气元件替换现有技术中的过滤部件， 该导气元件包括 挡板、 位于挡板一端的折边以及位于挡板另一端的底板； 所述挡板倾斜 设置于所述出口管的上方且遮挡所述出口管的进气口， 所述折边与所述 筒体内壁固定连接， 所述底板与所述出口管的进气端侧壁固定连接。 在 工作过程中， 气液混合物从进口管进入， 在导气元件的阻挡下， 先落在 挡板上， 在挡板的导向作用下， 滑落进入筒体内腔， 其中液体在重力作 用下下落到筒体内腔的底部， 气体在外力的作用下进入出口管， 通过出 口管导出进入压缩机内。 由于导气元件的挡板倾斜设置且遮挡出口管的 进气口， 所以气液混合物下落时可以减緩流速， 避免了液体与出口管进 气口的沖击， 从而避免了液体直接落入出口管， 有效分离了气液混合物。 与现有技术相比， 本发明所提供气液分离器的导气元件可以由钢板加工 而成， 加工工艺筒单， 不仅可以有效分离气液混合物， 还可以降低生产 成本； 导气元件与筒体、 出口管分别固定连接， 还起到了固定出口管的 - -
作用， 可以省去定位出口管的定位装置的设置， 进一步降低了生产成本， 该气液分离器尤其适用于大中型制冷系统中。
[0022] 在一种优选的实施方式中， 所述挡板的形状为半圓形， 所述折边 设置在挡板圓弧端的上侧， 所述底板设置在挡板直线端的下侧； 挡板的 形状与筒体内腔的截面形状契合， 可以扩大了保护范围， 进一步防止液 体在下落过程中溅落进入出口管。
[0023] 在另一种优选的实施方式中， 所述底板的两侧连接有叶面， 两个 叶面与出口管进气端的侧壁贴合， 可以避免液体经过筒体内壁时反射溅 落进入出口管。 同时， 在导气元件与出口管实施固定连接前， 可以通过 其叶面贴合出口管的进气端侧壁以实现预固定， 减化可加工工艺。 附图说明
[0024] 图 1为一种典型气液分离器的结构示意图；
[0025] 图 2为图 1所示气液分离器中过滤部件的结构示意图；
[0026] 图 3为图 2所示过滤部件的俯视示意图；
[0027] 图 4为图 2所示过滤部件的轴侧示意图；
[0028] 图 5为另一种典型气液分离器的结构示意图；
[0029] 图 6为本发明所提供气液分离器一种具体实施方式的结构示意图；
[0030] 图 7为本发明所提供导气元件一种具体实施方式的结构示意图；
[0031] 图 8为图 7所示导气元件的安装示意图；
[0032] 图 9为本发明所提供第一直管一种具体实施方式的结构示意图； [0033] 图 10 为本发明所提供导气元件另一种具体实施方式的结构示意 图；
[0034] 图 11为图 10所示导气元件的安装示意图。 具体实施方式
[0035] 本发明的核心是提供一种气液分离器， 用于制冷系统。 所述气液 分离器的导气元件， 结构筒单， 装配工艺筒单且材料成本低。
[0036] 为了使本技术领域的人员更好地理解本发明方案， 下面结合附图 . .
和具体实施方式对本发明作进一步的详细说明。
[0037] 本文中所涉及的上、 下等方位词均是以气液分离器出口管竖直朝 下的方位为基准定义的， 应当理解， 所述方位词的使用不应限制本申请 请求保护的范围。
[0038] 请参考图 6、 图 7和图 8, 图 6为本发明所提供气液分离器一种具 体实施方式的结构示意图； 图 7为本发明所提供导气元件一种具体实施 方式的结构示意图； 图 8为图 7中导气元件的安装示意图。
[0039] 在一种具体实施方式中， 本发明所提供的气液分离器包括筒体 5 , 所述筒体 5包括圓筒形状的中间体 51 ,与中间体 51两端固定连接的上端 盖 3和下端盖 4。 上端盖 3、 中间体 51和下端盖 4组成一个具有一定容 积的密闭内腔， 同时该内腔承受一定压力时无泄漏、 破损现象。 当然气 液分离器也可以具有其他具体结构形式。
[0040] 所述气液分离器还包括进口管 1 , 所述进口管 1设置在所述筒体 5 的上方， 所述进口管 1的下端与所述上端盖 3固定连接。
[0041] 所述气液分离器还包括出口管 2,所述出口管 2在所述筒体 5的内 腔内保持一定的高度， 所述出口管 2的下端与所述下端盖 4固定连接。
[0042] 出口管 2的上方设置有导气元件 7, 所述导气元件 7包括挡板 72、 设置于挡板 72—端上侧的折边 71以及设置于挡板 72另一端下侧的底板 73; 所述挡板 72位于出口管 2的上方且遮挡出口管 2的进气口， 所述折 边 71与所述中间体 51的内壁固定连接， 所述底板 73与所述出口管 2进 气端的侧壁连接。 这里需要说明的是， 所述遮挡是指所述挡板 72在水平 面上的投影包含出口管 2的进气口， 如此所述底板 73与所述出口管 2的 位置关系也进一步确定， 从图 6中可以看出， 出口管 2位于折边 71所在 平面和底板 73所在平面之间。
[0043] 可以将挡板 72倾斜设置， 气液混合物经进口管 1进入筒体 5内腔 后， 先下落在挡板 72上， 挡板 72不仅可以起到导向作用， 还可以减緩 流速； 另外由于挡板 72遮挡出口管 2的进气口， 还可以避免液体直接沖 击出口管 2的进气口， 有效避免了液体进入出口管 2造成气液分离失败。
[0044] 进一步地， 可以把挡板 72设置为半圓形， 与筒体 5内腔的截面相 . .
契合， 有效地扩大了保护范围， 防止液体进入出口管 2。 此时折边 71设 置于挡板 72圓弧端的上侧，底板 73设置于挡板 72直线端的下侧。当然， 所述挡板 72还可以设置为其他形状， 如梯形， 此时折边 71设置于挡板 72上底端的上侧， 底板 73设置于挡板下底端的下侧。 在具体设置时， 折 边 71与筒体 5内壁的连接部位以实现挡板 72边缘处与筒体 5内壁间隙 越小越好， 可以尽量地扩大挡板 72的保护范围。
[0045] 更进一步地， 可以在底板 73的两侧设置叶面 74, 两个叶面 74与 出口管 2进气端的侧壁贴合。 这样在导气元件 7与出口管 2实施焊接前， 可以通过其叶面 74贴合出口管 2的进气端侧壁以实现预固定。 叶面 74 的进一步作用是， 如果液体在下落过程中沖击筒体 5 内壁反弹后可以被 叶面 74挡住， 从而防止液体直接进入出口管 2而导致气液分离失败。
[0046] 在整机系统正常运行过程中，气液混合物经过进口管 1进入筒体 5 内腔， 在导气元件 7的阻挡下， 先落在挡板 72上， 在挡板 72的导向作 用下， 滑落进入筒体 5内腔， 由于挡板 72倾斜设置， 可以减緩气液混合 物的流速， 其中液体在重力作用下自上而下落入筒体 5 内腔底部， 气体 在外力的作用下进入出口管 2, 通过出口管 2后导出进入压缩机内。 由于 挡板 72遮挡出口管 2的进气口， 并且挡板 72的形状与筒体 5内腔的截 面相互契合， 同时底板 73和叶面 74紧紧贴合出口管 2进气端的外壁， 有效地避免了液体在下落过程中与出口管 2 的进气口沖击而溅落进入出 口管 2,有效地避免了液体在与筒体 5内壁沖击后反弹溅落进入出口管 2, 进而对压缩机造成液击。
[0047] 导气元件 7可以由钢板加工而成， 加工工艺筒单， 装配工艺筒单， 生产成本低。
[0048] 与现有技术中的过滤部件相比， 本发明所提供的导气元件 7 不仅 可以有效分离气液混合物， 还可以降低生产成本。 此外， 导气元件 7与 筒体 5、 出口管 2分别固定连接， 还起到了固定出口管 2的作用， 避免了 工作过程中出口管 2 的振动以及因振动发出的噪声， 从而可以省去定位 出口管 2的定位装置的设置， 进一步降低了生产成本。
[0049] 可以对上文所述的导气元件 7和出口管 2进行若干进一步的改进。 [0050] 请参考图 9、 图 10以及图 11 , 图 9为本发明所提供出口管一种具 体实施方式的结构示意图； 图 10为本发明所提供导气元件另一种具体实 施方式的结构示意图； 图 11为图 10所示导气元件的安装示意图。
[0051] 由于挡板 72遮挡出口管 1的进气口， 虽然挡板 72倾斜设置与出 口管 1 的进气口平面保持一定的角度， 还是会对气体的排出产生一定的 影响。 为了使分离后的气体能够在外力的作用下顺利地进入出口管 2, 可 以把出口管 2的进气端设置为倾斜面， 所述倾斜面朝向所述折边 71。 这 样底板 73即与出口管 2进气端较高侧的外壁固定连接， 出口管 2的进气 口平面与挡板 72之间的夹角增大， 有利于气体进入出口管 2。
[0052] 当出口管 2的进气端设置为倾斜面后， 为了防止液体在下落过程 中与筒体 5 内壁沖击反弹后溅落进入出口管 2, 在设置时要保证叶面 74 可以遮挡出口管 2进气端的倾斜侧壁。
[0053] 进一步地， 出口管 2 的进气端设置为倾斜面后， 可以把出口管 2 进气端与底板 73固定连接的一侧设置为连接平面 211 (示于图 9中）， 底 板 73和出口管 2进气端的连接平面 211可以通过点焊连接（示于图 11 中）， 使得导气元件 7和出口管 2之间的固定更可靠。
[0054] 为了使出口管 2的固定更牢靠， 更进一步地， 可以在出口管 2的 下方外壁设置环形台阶 212, 具体位置为与所述下端盖 4连接处。将环形 台阶 212的整个下环形面与下端盖 4的内壁固定连接，可以增大出口管 2 的固定面积， 加强出口管 2 的固定。 这里需要说明的是， 所述环形台阶 211的下环形面是指环形台阶 211竖直朝下的台阶面。
[0055] 为了便于装配， 可以将出口管 2加工为两部分， 即位于筒体 5 内 腔的第一直管 21和位于筒体 5下端外部的第二直管 22, 第一直管 21的 下端和第二直管 22的上端分别与所述下端盖 4固定连接。 其余具体结构 设置与上述出口管 2加工为整体的设置相同， 不再赘述。
[0056] 这里需要说明的是， 上文中所述固定连接的方式均可以通过焊接 来实现， 可以选用钎焊或氩弧焊的焊接方式， 也可以采用其他的焊接方 式。 当然也可以选用其他的固定连接方式。
[0057] 此外， 所述气液分离器还包括过滤部件 6, 过滤部件 6进一步包括 - -
过滤座和连接于所述过滤座上的过滤网。 所述出口管 2在筒体 5 内腔的 下方侧壁设置有通孔 213 , 所述过滤座和所述通孔 213固定连接（如图 6 中所示）。 这样在筒体 5内腔的少量液体可以经过滤部件 6至出口管 2导 出。
058] 以上对本发明所提供的气液分离器进行了详细介绍。 本文中应用 了具体个例对本发明的原理及实施方式进行了阐述， 以上实施例的说明 只是用于帮助理解本发明的方法及其核心思想。 应当指出， 对于本技术 领域的普通技术人员来说， 在不脱离本发明原理的前提下， 还可以对本 发明进行若干改进和修饰， 这些改进和修饰也落入本发明权利要求的保 护范围内。

Claims

权 利 要 求
1、一种气液分离器， 包括筒体、与所述筒体上端固接的进口管以及与 所述筒体下端固接的出口管， 其特征在于， 还包括导气元件， 所述导气 元件进一步包括挡板、 位于挡板一端的折边以及位于挡板另一端的底板， 所述挡板位于所述出口管的上方且遮挡所述出口管的进气口； 所述折边 与所述筒体内壁固定连接； 所述底板与所述出口管的进气端侧壁固定连 接。
2、 如权利要求 1所述的气液分离器， 其特征在于， 所述导气元件还 包括连接于所述底板两侧的叶面， 所述叶面与所述出口管的进气端侧壁 贴合。
3、 如权利要求 1所述的气液分离器， 其特征在于， 所述挡板为半圓 形， 所述折边位于所述挡板圓弧端的上侧， 所述底板位于所述挡板直线 端的下侧。
4、 如权利要求 1所述的气液分离器， 其特征在于， 所述挡板倾斜设 置。
5、 如权利要求 4所述的气液分离器， 其特征在于， 所述出口管的进 气端设置为倾斜面， 所述倾斜面朝向所述折边。
6、 如权利要求 1至 5任一项所述的气液分离器， 其特征在于， 所述 出口管的进气端侧壁设置有连接面， 所述底板和所述连接面通过点焊固 定连接。
7、 如权利要求 1至 5任一项所述的气液分离器， 其特征在于， 所述 气液分离器还包括过滤部件， 所述出口管的下方侧壁设置有通孔， 所述 过滤部件与所述通孔连接。
8、 如权利要求 1至 5任一项所述的气液分离器， 其特征在于， 所述 出口管的下方外壁设置有环形台阶， 所述环形台阶的环形面与所述筒体 固定连接。
9、 如权利要求 1至 5任一项所述的气液分离器， 其特征在于， 所述 出口管包括位于所述筒体内腔的第一直管和位于所述筒体下端外部的第 二直管， 所述第一直管和所述第二直管分别与所述筒体固定连接。
10、 如权利要求 1至 5任一项所述的气液分离器， 其特征在于， 所 述筒体进一步包括上端盖、 下端盖以及与所述上端盖和所述下端盖固定 连接的中间体， 所述进口管与所述上端盖固接， 所述出口管与所述下端 盖固接， 所述导气元件的折边与所述中间体的内壁固接。
PCT/CN2013/070926 2012-02-14 2013-01-24 气液分离器 WO2013120409A1 (zh)

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CN103245143B (zh) 2016-09-21
EP2816300A1 (en) 2014-12-24
EP2816300B1 (en) 2019-05-15
CN103245143A (zh) 2013-08-14
US9696071B2 (en) 2017-07-04
US20140352270A1 (en) 2014-12-04

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