WO2017045514A1 - 干燥过滤器 - Google Patents

干燥过滤器 Download PDF

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Publication number
WO2017045514A1
WO2017045514A1 PCT/CN2016/096409 CN2016096409W WO2017045514A1 WO 2017045514 A1 WO2017045514 A1 WO 2017045514A1 CN 2016096409 W CN2016096409 W CN 2016096409W WO 2017045514 A1 WO2017045514 A1 WO 2017045514A1
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WIPO (PCT)
Prior art keywords
filter
drying
plate
layer
filter plate
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PCT/CN2016/096409
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English (en)
French (fr)
Inventor
吴林苹
蒋伟伟
Original Assignee
浙江三花股份有限公司
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Application filed by 浙江三花股份有限公司 filed Critical 浙江三花股份有限公司
Priority to EP16845628.3A priority Critical patent/EP3351875B1/en
Priority to US15/760,636 priority patent/US10406459B2/en
Publication of WO2017045514A1 publication Critical patent/WO2017045514A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/003—Filters in combination with devices for the removal of liquids
    • 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
    • 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
    • F25B43/003—Filters

Definitions

  • the present invention relates to the field of filtration equipment, and in particular to a drying filter.
  • the one-way drying filter is installed in a one-way flow refrigeration line and is usually installed between the condenser and the expansion valve. It can effectively prevent the accumulation of pollutants in a flow direction and absorb the moisture in the refrigerant.
  • the unidirectional drying filter adopts a dry and filter combination design, which can effectively prevent the filtrate and soluble materials from entering the key components of the refrigeration system, thus ensuring that the system is in an optimal state.
  • the structure of the unidirectional drying filter in the prior art is as shown in FIGS. 1 and 2, and the unidirectional drying filter comprises a cylinder 1', a first end cover 2' and a second end disposed at both ends of the cylinder 1'.
  • the drying layer includes a first filter plate 5' and a second filter plate 6'.
  • a drying chamber is formed between the first filter plate 5' and the second filter plate 6', and a molecular sieve is disposed in the drying chamber.
  • the one-way drying filter of the prior art has the following problems:
  • the unidirectional drying filter outlet is disposed in the middle of the cross section of the cylinder while the second filter plate 6' is abutted against the second end cap 3', the middle edge of the cylinder is flowed when the refrigerant flows through the unidirectional drying filter.
  • the area of the centerline forms a low pressure zone. Due to the presence of the low pressure zone, when the refrigerant flows out of the first filter plate 5' from any direction, the refrigerant will move toward the center of the second filter plate 6' under the action of pressure (as shown by the direction of the arrow in FIG. 1). ).
  • the flow direction of the above refrigerant causes the filtered impurities to first collect in the middle of the first filter plate 5', thereby causing the resistance of the refrigerant to rise linearly. Even when the middle resistance of the first filter plate 5' is excessively large, the refrigerant flows toward the inner wall of the cylindrical body 1', but under the influence of the pressure difference, the refrigerant is urged toward the middle of the first filter plate 5'. flow.
  • the first filter plate 5' of the prior art unidirectional dry filter has low utilization rate, and the filtered impurities gather in the middle of the first filter plate 5' to increase the pressure, thereby affecting the use of the product. life.
  • the main object of the present invention is to provide a drying filter to solve the problem that the filter plate of the prior art drying filter is easy to accumulate impurities and has low utilization rate.
  • the present invention provides a drying filter comprising: a cylinder; a first end cover and a second end cover respectively sealed at both ends of the cylinder; a first filter layer disposed in the cylinder Adjacent to the end of the first end cap; a drying layer disposed in the cylinder and located on a side of the first filter layer away from the first end cap, the drying layer comprising a first filter plate adjacent to the first filter layer and away from the first filter layer
  • the drying filter further comprises: a first fixing structure, the first fixing structure defines a position of the second filter plate in the barrel So that a buffer chamber is formed between the second filter plate, the inner wall of the cylinder and the second end cover.
  • the drying filter further includes a second filter layer, the second filter layer being located in the buffer chamber.
  • the second filter layer comprises: a plurality of stacked first filter sheets, and the plurality of first filter sheets are disposed in the first fixed structure.
  • the first fixing structure comprises: a first bottom plate abutting the second end cover, the first bottom plate is provided with a first overflow hole; the plurality of first claws are disposed on the first bottom plate, the plurality of A first receiving space for accommodating the second filter layer is formed between the claws, and an end of the first claw away from the second end cover abuts the second filter plate.
  • one end of the first claw away from the second end cover has a hook portion that hooks the second filter layer.
  • the first claw is provided with a recess portion that cooperates with the outer side wall of the second filter layer.
  • the first filter layer comprises a plurality of stacked second filter sheets
  • the drying filter further comprises: a second fixing structure, wherein the plurality of second filter sheets are disposed in the second fixing structure.
  • the second fixing structure comprises: a second bottom plate abutting the first filter plate, the second bottom plate is provided with a second overflow hole; the plurality of second claws are disposed on the second bottom plate, the plurality of A second receiving space for accommodating the first filter layer is formed between the two claws, and an end of the second claw away from the first end cover abuts the first filter plate.
  • the distance from the first filter plate to the first end cover is equal to the distance from the second filter plate to the second end cover.
  • a third overflow hole is opened in the first filter plate and/or the second filter plate.
  • a molecular sieve is disposed in the drying chamber.
  • the first filter structure is further included in the drying filter.
  • the first fixing structure defines a position of the second filter plate in the cylinder such that a buffer chamber is formed between the second filter plate, the inner wall of the cylinder and the second end cover. Since the buffer chamber exists in the cylinder, the refrigerant can be buffered when flowing through the buffer chamber, so that the pressure difference of the refrigerant in the radial direction of the cylinder is alleviated, thereby enabling the refrigerant to flow more uniformly to the second filter plate.
  • the above structure can increase the utilization rate of the second filter plate while also alleviating the accumulation of impurities. Therefore, the technical solution of the present invention solves the problem that the filter plate of the dry filter in the prior art is easy to accumulate impurities and has low utilization rate.
  • Figure 1 is a schematic view showing the structure of a prior art dry filter and the flow direction of the refrigerant inside thereof;
  • Figure 2 is a schematic view showing the structure of the casing of the drying filter of Figure 1;
  • Figure 3 is a view showing the internal structure of the first embodiment of the drying filter according to the present invention and the flow direction of the refrigerant;
  • FIG. 4 to FIG. 6 are schematic structural views showing the first fixing structures of the drying filter of FIG. 3 respectively located at different viewing angles;
  • FIG. 7 to FIG. 11 are schematic structural views showing the first fixing structure of the drying filter of FIG. 3 and the second filter layer respectively assembled at different viewing angles;
  • Figure 12 is a schematic view showing the structure of the first filter plate of the drying filter of Figure 3;
  • Fig. 13 is a view showing the internal structure of a second embodiment of the drying filter according to the present invention.
  • the drying filter of the first embodiment includes a barrel 10, a first end cap 20, a second end cap 30, a first filter layer 100, and a drying layer 40.
  • the first end cover 20 and the second end cover 30 are respectively disposed at two ends of the cylinder 10, and the first filter layer 100 is disposed at one end of the cylinder 10 near the first end cover 20.
  • the drying layer 40 is disposed within the barrel 10 and is located on a side of the first filter layer 100 remote from the first end cap 20.
  • the drying layer 40 includes a first filter plate 41 adjacent to the first filter layer 100 and a second filter plate 42 remote from the first filter layer 100.
  • the first filter plate 41, the second filter plate 42, and the barrel wall of the barrel 10 are formed to be dry. Cavity.
  • the drying filter of the first embodiment further includes a first fixing structure 50 that defines a position of the second filter plate 42 within the cylinder 10 such that the second filter plate 42, the inner wall of the cylinder 10, and the second A buffer chamber 60 is formed between the end caps 30.
  • the first fixed structure 50 is further included in the drying filter.
  • the first fixing structure 50 defines a position of the second filter plate 42 within the cylinder 10 such that a buffer chamber 60 is formed between the second filter plate 42, the inner wall of the cylinder 10 and the second end cover 30. Since the buffer chamber 60 is present in the cylinder 10, the refrigerant can be buffered when flowing through the buffer chamber 60, so that the pressure difference of the refrigerant in the radial direction of the cylinder 10 is alleviated, thereby enabling a more uniform flow of the refrigerant. To the second filter plate 42.
  • the above structure can increase the utilization rate of the second filter plate 42 while also alleviating the accumulation of impurities, thereby further making the refrigerant flow more stable throughout the product. Therefore, the technical solution of the first embodiment solves the problem that the filter plate of the dry filter in the prior art is easy to accumulate impurities and has low utilization rate.
  • the drying filter further includes a second filter layer 70 , and the second filter layer 70 is located in the buffer cavity 60 .
  • the drying filter of the first embodiment has a filter structure added, so that the filtration precision of the drying filter can be improved, thereby further protecting the system.
  • the second filter layer 70 includes a plurality of stacked first filter sheets, and a plurality of first filter sheets are disposed within the first fixing structure 50, thereby simplifying the internal structure of the drying filter.
  • the inlet and outlet of the prior art dry filter The mouth can not be installed in the same manner, and the drying filter of the first embodiment can add any second installation layer 70 in the cylinder 10, and can realize any installation without importing and exporting, as follows:
  • the inlet (left side) of the barrel 1' needs to be connected to the inlet of the refrigerant in the system. If it is reversed, the refrigerant first flows through the second filter in the right area.
  • the plate 6' and all of the impurities in the system are collected in the second filter plate 6'. Since there is no other filtering structure between the second filter plate 6' and the second end cap 3', even if a small amount of impurities are collected on the second filter plate 6', the pressure drop in the cylindrical body 1' is immediately raised.
  • the right side area is designed as a small space circulation channel, and the left side area is the best place to design and collect impurities.
  • the specified installation direction of the dry filter is usually indicated on the outside of the cylinder 1' (for example, in FIG. 2), but since the cylinder 1' The external structure cannot be seen in the outside, so the operator may not be careful or the dry filter may be reversed.
  • the drying filter of the first embodiment adds a second filtering layer 70 to the space on the right side of the cylinder 10, thereby enabling the filtering structure in the cylinder 10 to achieve a symmetric setting effect, and preferably
  • the distance from the first filter plate 41 to the first end cover 20 is equal to the distance between the second filter plate 42 and the second end cover 30, thereby achieving spatial symmetry of the filter structures in the cylinder 10.
  • the above structure makes it unnecessary to distinguish between the front and the back of the dry filter, and to prevent the operator from reversing the dry filter, and also makes the installation more flexible.
  • the prior art dry filter also has the problem of inconvenient assembly when assembling the filter layer.
  • the filter layer 4' in the prior art includes a spring fixing structure and a filter material disposed in the spring, and filtering
  • the material is usually made of fluffy glass wool material in order to achieve a certain ability to filter impurities.
  • the design of the filter material in the spring needs to meet certain conditions. Specifically, when the filter material is assembled, it must have a certain amount of compaction, so that the impurities can be evenly distributed, and the ability to filter impurities can be maximized. Therefore, when assembling, the height of the spring inside is generally 40% to 70% higher than the total height of the spring when the filter material is in a fluffy state.
  • the filter material generally consists of more than four filters, and the height beyond the spring is easy to fall during the assembly process, resulting in a lack of internal filter and affecting the ability to filter impurities.
  • the part positioning stop net has been added in the prior art.
  • the blocking net component is complicated in assembly action, which causes hidden troubles in the multi-installation and leakage of the retaining net.
  • the refrigerant flows through the retaining mesh component to generate turbulence, which increases the flow resistance and further reduces the flow.
  • the first fixed structure 50 includes a first bottom plate 51 and a plurality of One jaw 52.
  • the first bottom plate 51 is in contact with the second end cover 30.
  • the first bottom plate 51 is provided with a first through hole 511.
  • the plurality of first claws 52 are disposed on the first bottom plate 51, and the plurality of first claws 52 are A first receiving space for accommodating the second filter layer 70 is formed, and an end of the first claw 52 away from the second end cover 30 abuts against the second filter plate 42.
  • the end of the first claw 52 away from the second end cover 30 has a hook portion 521 that hooks the second filter layer 70.
  • the above structure enables the two ends of the second filter layer 70 to be completely fixed by the first filter structure, eliminating the prior art that the filter combination in the spring is higher than the spring portion, so the positioning screen can be eliminated. Therefore, the first fixing structure 50 of the first embodiment simplifies the assembly action of the drying filter, eliminates the hidden trouble of the multi-package and the missing installation of the retaining net, and relieves the phenomenon that the refrigerant generates turbulence.
  • the first claw 52 is provided with a recess 522 that cooperates with the outer sidewall of the second filter layer 70, thereby enabling the first fixing structure 50 and the second filter layer. 70 is more closely coordinated.
  • the first filter plate 41 and the second filter plate 42 are both circular plate structures. If the refrigerant flow rate of the drying filter is to be increased, a third overflow hole 90 may be formed in the first filter plate 41 and/or the second filter plate 42 as shown in FIG. Maximize liquidity.
  • a molecular sieve is disposed in the drying chamber.
  • the molecular sieve fills the drying chamber and is also capable of filtering during assembly.
  • the difference between the second embodiment and the first embodiment of the drying filter according to the present application is that the fixing structure of the first filter layer 100 in the second embodiment also adopts the first fixed structure in the first embodiment.
  • the first filter layer 100 includes a plurality of stacked second filter sheets
  • the drying filter further includes a second fixing structure 80
  • the plurality of second filter sheets are disposed in the second fixing structure 80.
  • the second fixing structure 80 includes a second bottom plate and a plurality of second claws. The second bottom plate abuts the first filter plate 41, and the second bottom plate is provided with a second overflow hole.
  • a plurality of second claws are disposed on the second bottom plate, and a second receiving space for accommodating the first filter layer 100 is formed between the plurality of second claws, and the second claw is away from the end of the first end cover 20 and the first filter
  • the plate 41 abuts.
  • the structure and function of the second fixing structure 80 and the first fixing structure 50 are the same, and details are not described herein again.
  • the second fixing structure 80 and the first fixing structure 50 are disposed in the same structure, so that the screen structure is completely eliminated in the drying filter, thereby greatly simplifying the assembly process of the drying filter. At the same time, the turbulence of the refrigerant is alleviated.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
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  • Filtering Of Dispersed Particles In Gases (AREA)
  • Drying Of Solid Materials (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

一种干燥过滤器，包括筒体（10）；第一端盖（20）和第二端盖（30），分别封堵设置在筒体（10）的两端；第一过滤层（100），设置在筒体（10）内靠近第一端盖（20）的一端；干燥层（40），设置在筒体（10）内，并位于第一过滤层（100）远离第一端盖（20）的一侧，干燥层（40）包括靠近第一过滤层（100）的第一过滤板（41）及远离第一过滤层（100）的第二过滤板（42），第一过滤板（41）、第二过滤板（42）和筒体（10）的筒壁形成干燥腔；第一固定结构（50），限定第二过滤板（42）在筒体（10）内的位置，以使第二过滤板（42）、筒体（10）的内壁及第二端盖（30）之间形成缓冲腔（60）。该干燥过滤器解决了现有干燥过滤器的过滤板易堆积杂质，利用率低的问题。

Description

干燥过滤器 技术领域
本发明涉及过滤设备技术领域，具体而言，涉及一种干燥过滤器。
背景技术
单向干燥过滤器安装于单向流动的制冷管路中，并通常安装于冷凝器与膨胀阀之间，它能有效防止集结一个流动方向的污染物，同时能吸收冷媒中的水分。单向干燥过滤器内部采用干燥、过滤组合设计，能有效防止过滤物、可溶物进入制冷系统的关键部件，从而保证系统在最佳状态下进行。
现有技术中的单向干燥过滤器的结构如图1和图2所示，单向干燥过滤器包括筒体1’、设置在筒体1’两端的第一端盖2’和第二端盖3’、以及位于筒体1’内并依次设置的过滤层4’和干燥层。其中干燥层包括第一过滤板5’和第二过滤板6’，第一过滤板5’和第二过滤板6’之间形成干燥腔，干燥腔内设置有分子筛。现有技术中的单向干燥过滤器有以下问题：
由于单向干燥过滤器出口设置在筒体横截面的中部，同时第二过滤板6’与第二端盖3’抵接设置，因此当制冷剂流过单向干燥过滤器时筒体中沿其中心线的区域形成低压区。由于上述低压区存在，使得当制冷剂无论从哪个方向流出第一过滤板5’，制冷剂在压力的作用下都会向第二过滤板6’的中心部位靠拢(如图1中箭头方向所示)。上述制冷剂的流动方向使得过滤下来的杂质会首先聚集在第一过滤板5’的中部，进而使得制冷剂的阻力直线上升。即使当第一过滤板5’的中部阻力过大时使制冷剂朝筒体1’的内壁方向流动，但在压力差的影响下还是会驱使制冷剂朝靠近第一过滤板5’中部的方向流动。综上所述，现有技术中的单向干燥过滤器的第一过滤板5’利用率低，同时过滤后的杂质聚集在第一过滤板5’中部使得压力升高，进而影响产品的使用寿命。
发明内容
本发明的主要目的在于提供一种干燥过滤器，以解决现有技术中的干燥过滤器的过滤板易堆积杂质，利用率低的问题。
为了实现上述目的，本发明提供了一种干燥过滤器，包括：筒体；第一端盖和第二端盖，分别封堵设置在筒体的两端；第一过滤层，设置在筒体内靠近第一端盖的一端；干燥层，设置在筒体内，并位于第一过滤层远离第一端盖的一侧，干燥层包括靠近第一过滤层的第一过滤板以及远离第一过滤层的第二过滤板，第一过滤板、第二过滤板和筒体的筒壁形成干燥腔，干燥过滤器还包括：第一固定结构，第一固定结构限定第二过滤板在筒体内的位置，以使第二过滤板、筒体的内壁及第二端盖之间形成缓冲腔。
进一步地，干燥过滤器还包括第二过滤层，第二过滤层位于缓冲腔内。
进一步地，第二过滤层包括：多个叠置的第一过滤片，多个第一过滤片设置在第一固定结构内。
进一步地，第一固定结构包括：第一底板，与第二端盖抵接，第一底板上设置有第一过流孔；多个第一卡爪，设置在第一底板上，多个第一卡爪之间形成容纳第二过滤层的第一容纳空间，第一卡爪远离第二端盖的一端与第二过滤板抵接。
进一步地，第一卡爪远离第二端盖的一端具有钩住第二过滤层的钩部。
进一步地，第一卡爪上设置有与第二过滤层的外侧壁配合的凹陷部。
进一步地，第一过滤层包括多个叠置的第二过滤片，干燥过滤器还包括：第二固定结构，多个第二过滤片设置在第二固定结构内。
进一步地，第二固定结构包括：第二底板，与第一过滤板抵接，第二底板上设置有第二过流孔；多个第二卡爪，设置在第二底板上，多个第二卡爪之间形成容纳第一过滤层的第二容纳空间，第二卡爪远离第一端盖的一端与第一过滤板抵接。
进一步地，第一过滤板到第一端盖的距离与第二过滤板到第二端盖的距离相等。
进一步地，第一过滤板和/或第二过滤板上开设有第三过流孔。
进一步地，干燥腔内设置有分子筛。
应用本发明的技术方案，干燥过滤器内还包括第一固定结构。第一固定结构限定第二过滤板在筒体内的位置，以使第二过滤板、筒体的内壁及第二端盖之间形成缓冲腔。由于筒体内存在缓冲腔，当制冷剂流过缓冲腔时能够得到缓冲，使得制冷剂在沿筒体径向方向的压力差得到缓解，进而能够使制冷剂更加均匀的流动至第二过滤板。上述结构能够增加第二过滤板的利用率的同时也能够缓解杂质堆积的情况。因此本发明的技术方案解决了现有技术中的干燥过滤器的过滤板易堆积杂质，利用率低的问题。
附图说明
构成本申请的一部分的说明书附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1示出了现有技术中干燥过滤器的结构以及其内部制冷剂流动方向的示意图；
图2示出了图1中干燥过滤器的壳体的结构示意图；
图3示出了根据本发明的干燥过滤器的实施例一的内部结构以及冷媒流动方向的示意图；
图4至图6分别示出了图3中干燥过滤器的第一固定结构分别位于不同视角的结构示意图；
图7至图11分别示出了图3中干燥过滤器的第一固定结构与第二过滤层装配后分别位于不同视角的结构示意图；
图12示出了图3中干燥过滤器的第一过滤板的结构示意图；以及
图13示出了根据本发明的干燥过滤器的实施例二的内部结构示意图。
其中，上述附图包括以下附图标记：
1’、筒体；2’、第一端盖；3’、第二端盖；4’、过滤层；5’、第一过滤板；6’、第二过滤板；10、筒体；20、第一端盖；30、第二端盖；40、干燥层；41、第一过滤板；42、第二过滤板；50、第一固定结构；51、第一底板；511、第一过流孔；52、第一卡爪；521、钩部；522、凹陷部；60、缓冲腔；70、第二过滤层；80、第二固定结构；90、第三过流孔；100、第一过滤层。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。
如图3所示，实施例一的干燥过滤器包括筒体10、第一端盖20、第二端盖30、第一过滤层100以及干燥层40。其中，第一端盖20和第二端盖30分别封堵设置在筒体10的两端，第一过滤层100设置在筒体10内靠近第一端盖20的一端。干燥层40设置在筒体10内，并位于第一过滤层100远离第一端盖20的一侧。干燥层40包括靠近第一过滤层100的第一过滤板41以及远离第一过滤层100的第二过滤板42，第一过滤板41、第二过滤板42和筒体10的筒壁形成干燥腔。实施例一的干燥过滤器还包括第一固定结构50，第一固定结构50限定第二过滤板42在筒体10内的位置，以使第二过滤板42、筒体10的内壁及第二端盖30之间形成缓冲腔60。
应用实施例一的技术方案，干燥过滤器内还包括第一固定结构50。第一固定结构50限定第二过滤板42在筒体10内的位置，以使第二过滤板42、筒体10的内壁及第二端盖30之间形成缓冲腔60。由于筒体10内存在缓冲腔60，当制冷剂流过缓冲腔60时能够得到缓冲，使得制冷剂在沿筒体10的径向方向的压力差得到缓解，进而能够使制冷剂更加均匀的流动至第二过滤板42。上述结构能够增加第二过滤板42的利用率的同时也能够缓解杂质堆积的情况，进而使制冷剂在整个产品内部流动更加稳定。因此实施例一的技术方案解决了现有技术中的干燥过滤器的过滤板易堆积杂质，利用率低的问题。
如图2所示，在实施例一的技术方案中，干燥过滤器还包括第二过滤层70，第二过滤层70位于缓冲腔60内。和现有技术相比，实施例一的干燥过滤器又增加了一道过滤结构，因此能够提高干燥过滤器的过滤精度，进而更好的保护系统。
具体地，第二过滤层70包括多个叠置的第一过滤片，并且多个第一过滤片设置在第一固定结构50内，进而简化干燥过滤器的内部结构。同时，现有技术中的干燥过滤器的进口和出 口不能够对调安装，而实施例一的干燥过滤器在筒体10内增加了第二过滤层70后即可实现不分进出口的任意安装，具体如下：
对于现有技术如图1和图2所示，筒体1’的进口(左侧)需连接系统中制冷剂的流入口，如果一旦装反，制冷剂首先流经右侧区域的第二过滤板6’，并且将系统中的杂质全部收集于第二过滤板6’。由于第二过滤板6’和第二端盖3’之间没有其他过滤结构，因此即使有少量杂质收集于第二过滤板6’上，也会使筒体1’内的压降立即上升。同时右侧区域设计上是一个空间小的流通通道，左侧区域才是设计上过滤收集杂质的最佳地点。因此装反的情况下，产品寿命大大降低，为了避免上述情况发生，通常会在筒体1’外侧标出干燥过滤器的规定安装方向(例如在图2中)，但是由于从筒体1’的外部无法看到其内部结构，因此操作人员稍不注意还是会容易出现干燥过滤器反装的情况。
而实施例一的干燥过滤器相对于现有技术而言，在筒体10的右侧空间增加了第二过滤层70，进而使得筒体10内的过滤结构达到对称设置的效果，并且优选地，第一过滤板41到第一端盖20的距离与第二过滤板42到第二端盖30的距离相等，进而实现筒体10内的各过滤结构在空间上对称的效果。上述结构使得干燥过滤器在安装时无需在区分正反，在防止操作人员将干燥过滤器装反的同时也使得安装更加地灵活。
此外，现有技术中的干燥过滤器在装配过滤层时也存在装配不便的问题，具体参见图1：现有技术中的过滤层4’包括弹簧固定结构以及设置在弹簧内的过滤材料，过滤材料通常采用蓬松的玻璃棉材料，目的是达到一定的过滤杂质能力。弹簧内的过滤材料组合设计需满足一定的条件，具体地，过滤材料组合装配时到要有一定的压紧量，让杂质可以均匀分布，把过滤杂质能力发挥最高点。所以在装配时弹簧内部一般过使过滤材料处于蓬松状态时的高度高出弹簧总高的40％～70％。但是，玻璃棉板材料一般通过模具冲压制成，其厚度一旦超出30mm在冲压模具上无法实现制造。所以，过滤材料一般由四只以上的过滤片数量组成，而超出弹簧高度部份在装配过程很易掉落，导致内部过滤片数量缺少，影响过滤杂质能力。同时，为了定位筒体1’内壁的过滤片高出弹簧部分，现有技术中增加了零件定位挡网。挡网部件一方面复杂了装配动作，从而引起挡网多装、漏装的隐患，另一方面，致制冷剂流经挡网部件时产生紊流，增加了流动阻力，进而降低了流通量。
为了解决上述问题，申请人对过滤层的固定结构进行了改进，具体如图4至图11所示，在实施例一的技术方案中，第一固定结构50包括第一底板51和多个第一卡爪52。第一底板51与第二端盖30抵接，第一底板51上设置有第一过流孔511，多个第一卡爪52设置在第一底板51上，多个第一卡爪52之间形成容纳第二过滤层70的第一容纳空间，第一卡爪52远离第二端盖30的一端与第二过滤板42抵接。同时，第一卡爪52远离第二端盖30的一端具有钩住第二过滤层70的钩部521。上述结构能够使得第二过滤层70的两端完全被第一过滤结构固定，消除了现有技术中弹簧内的过滤组合高出弹簧部分，因此定位挡网可以取消。因此实施例一的第一固定结构50简化了干燥过滤器的装配动作，消除了挡网多装、漏装的隐患，同时缓解制冷剂产生紊流的现象。
如图4所示，在实施例一的技术方案中，第一卡爪52上设置有与第二过滤层70的外侧壁配合的凹陷部522，进而使得第一固定结构50和第二过滤层70之间配合的更加紧密。
如图3所示，在实施例一的技术方案中，第一过滤板41和第二过滤板42均为圆形板结构。若想增加干燥过滤器的制冷剂流通量，在保证过滤能力情况下，如图12所示，可以在第一过滤板41和/或第二过滤板42上开设第三过流孔90，进而使将流通量最大化。
如图3所示，在实施例一的技术方案中，干燥腔内设置有分子筛。分子筛充满干燥腔进而在装配过程中也能够起到过滤作用。
如图13所示，根据本申请的干燥过滤器的实施例二和实施例一的区别在于，实施例二中的第一过滤层100的固定结构也采用了和实施例一中第一固定结构相同的结构。具体地，第一过滤层100包括多个叠置的第二过滤片，干燥过滤器还包括第二固定结构80，多个第二过滤片设置在第二固定结构80内。第二固定结构80包括第二底板和多个第二卡爪，第二底板与第一过滤板41抵接，第二底板上设置有第二过流孔。多个第二卡爪设置在第二底板上，多个第二卡爪之间形成容纳第一过滤层100的第二容纳空间，第二卡爪远离第一端盖20的一端与第一过滤板41抵接。第二固定结构80和第一固定结构50的结构和作用一致，在此不再赘述。
在实施例二的技术方案中，将第二固定结构80和第一固定结构50设置为同样的结构，使得干燥过滤器内完全不用再设置挡网结构，进而大大简化干燥过滤器的装配过程，同时缓解制冷剂产生紊流的现象。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (11)

  1. 一种干燥过滤器，包括：
    筒体(10)；
    第一端盖(20)和第二端盖(30)，分别封堵设置在所述筒体(10)的两端；
    第一过滤层(100)，设置在所述筒体(10)内靠近所述第一端盖(20)的一端；
    干燥层(40)，设置在所述筒体(10)内，并位于所述第一过滤层(100)远离所述第一端盖(20)的一侧，所述干燥层(40)包括靠近所述第一过滤层(100)的第一过滤板(41)以及远离所述第一过滤层(100)的第二过滤板(42)，所述第一过滤板(41)、所述第二过滤板(42)和所述筒体(10)的筒壁形成干燥腔，
    其特征在于，所述干燥过滤器还包括：
    第一固定结构(50)，所述第一固定结构(50)限定所述第二过滤板(42)在所述筒体(10)内的位置，以使所述第二过滤板(42)、所述筒体(10)的内壁及所述第二端盖(30)之间形成缓冲腔(60)。
  2. 根据权利要求1所述的干燥过滤器，其特征在于，所述干燥过滤器还包括第二过滤层(70)，所述第二过滤层(70)位于所述缓冲腔(60)内。
  3. 根据权利要求2所述的干燥过滤器，其特征在于，所述第二过滤层(70)包括：
    多个叠置的第一过滤片，所述多个第一过滤片设置在所述第一固定结构(50)内。
  4. 根据权利要求2或3所述的干燥过滤器，其特征在于，所述第一固定结构(50)包括：
    第一底板(51)，与所述第二端盖(30)抵接，所述第一底板(51)上设置有第一过流孔(511)；
    多个第一卡爪(52)，设置在所述第一底板(51)上，所述多个第一卡爪(52)之间形成容纳所述第二过滤层(70)的第一容纳空间，所述第一卡爪(52)远离所述第二端盖(30)的一端与所述第二过滤板(42)抵接。
  5. 根据权利要求4所述的干燥过滤器，其特征在于，所述第一卡爪(52)远离所述第二端盖(30)的一端具有钩住所述第二过滤层(70)的钩部(521)。
  6. 根据权利要求4所述的干燥过滤器，其特征在于，所述第一卡爪(52)上设置有与所述第二过滤层(70)的外侧壁配合的凹陷部(522)。
  7. 根据权利要求1所述的干燥过滤器，其特征在于，所述第一过滤层(100)包括多个叠置的第二过滤片，所述干燥过滤器还包括：
    第二固定结构(80)，所述多个第二过滤片设置在所述第二固定结构(80)内。
  8. 根据权利要求7所述的干燥过滤器，其特征在于，所述第二固定结构(80)包括：
    第二底板，与所述第一过滤板(41)抵接，所述第二底板上设置有第二过流孔；
    多个第二卡爪，设置在所述第二底板上，所述多个第二卡爪之间形成容纳所述第一过滤层(100)的第二容纳空间，所述第二卡爪远离所述第一端盖(20)的一端与所述第一过滤板(41)抵接。
  9. 根据权利要求1所述的干燥过滤器，其特征在于，所述第一过滤板(41)到所述第一端盖(20)的距离与所述第二过滤板(42)到所述第二端盖(30)的距离相等。
  10. 根据权利要求1所述的干燥过滤器，其特征在于，所述第一过滤板(41)和/或所述第二过滤板(42)上开设有第三过流孔(90)。
  11. 根据权利要求1所述的干燥过滤器，其特征在于，所述干燥腔内设置有分子筛。
PCT/CN2016/096409 2015-09-18 2016-08-23 干燥过滤器 WO2017045514A1 (zh)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107144039B (zh) * 2017-05-31 2019-07-05 国药集团贵州血液制品有限公司 一种水冷冷凝机及其去水方法
CN107255381B (zh) * 2017-07-31 2022-07-08 清华大学 干燥过滤器和具有其的制冷与热泵系统
CN107469484A (zh) * 2017-08-28 2017-12-15 重庆洁邦电器有限公司 适用于粮食储存的粉尘过滤装置
USD890295S1 (en) * 2018-02-09 2020-07-14 Zhejiang Sanhua Intelligent Controls Co., Ltd. Dry filter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637881A (en) * 1983-03-30 1987-01-20 Emerson Electric Co. Filter drier
CN2597911Y (zh) * 2003-01-13 2004-01-07 成都龙泉制冷元件厂 固体分子筛干燥过滤器
CN203286824U (zh) * 2013-05-22 2013-11-13 徐小芳 一种干燥过滤器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680707A (en) * 1971-07-30 1972-08-01 Virginia Chemicals Inc Filter drier
US4683057A (en) * 1985-03-08 1987-07-28 Henry Valve Company Refillable filter-drier assembly
US4811571A (en) * 1988-03-28 1989-03-14 Thermo King Corporation Refrigerant drier
CN2103363U (zh) * 1991-10-29 1992-05-06 泰兴县制药机械三厂 单体双滤层空气除菌过滤器
US20110143754A1 (en) * 2008-07-24 2011-06-16 Roamware Inc. Predictive intelligence based automated camel testing
CN102650481B (zh) * 2011-02-28 2015-10-14 浙江三花制冷集团有限公司 一种单向干燥过滤器
CN202427223U (zh) * 2012-01-18 2012-09-12 浙江三花制冷集团有限公司 干燥过滤器及其过滤部件

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637881A (en) * 1983-03-30 1987-01-20 Emerson Electric Co. Filter drier
CN2597911Y (zh) * 2003-01-13 2004-01-07 成都龙泉制冷元件厂 固体分子筛干燥过滤器
CN203286824U (zh) * 2013-05-22 2013-11-13 徐小芳 一种干燥过滤器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3351875A4 *

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