WO2023061323A1 - 制冷剂分配装置及换热器 - Google Patents

制冷剂分配装置及换热器 Download PDF

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Publication number
WO2023061323A1
WO2023061323A1 PCT/CN2022/124346 CN2022124346W WO2023061323A1 WO 2023061323 A1 WO2023061323 A1 WO 2023061323A1 CN 2022124346 W CN2022124346 W CN 2022124346W WO 2023061323 A1 WO2023061323 A1 WO 2023061323A1
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Prior art keywords
distribution
hole
pipe
holes
refrigerant
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PCT/CN2022/124346
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English (en)
French (fr)
Inventor
冯忠波
夏纯武
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浙江盾安人工环境股份有限公司
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Publication of WO2023061323A1 publication Critical patent/WO2023061323A1/zh

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    • 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
    • F25B39/00—Evaporators; Condensers
    • 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
    • F25B41/40—Fluid line arrangements
    • F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates

Definitions

  • the present application relates to the technical field of refrigeration equipment, in particular to a refrigerant distribution device and a heat exchanger.
  • the refrigerant distribution device is used in the heat exchanger to distribute the refrigerant in the header of the heat exchanger.
  • the refrigerant flow rate distributed by the refrigerant distribution device in the heat exchanger is fixed. If the distribution of the refrigerant flow rate needs to be adjusted, another refrigerant distribution device can only be replaced, which greatly affects the work efficiency.
  • a refrigerant distribution device and a heat exchanger are provided.
  • a refrigerant distribution device includes an inner distribution pipe and an outer distribution pipe, the outer distribution pipe is sleeved outside the inner distribution pipe; the inner distribution pipe is provided with various hole units, each The hole unit includes a plurality of inner distribution holes; the outer distribution pipe is opened with an outer distribution hole; the relative position of the inner distribution pipe and the outer distribution pipe is adjusted so that at least one of the hole units in the hole unit The inner distribution hole corresponds to the outer distribution hole, and the refrigerant flows out from the inner distribution hole and the outer distribution hole in sequence.
  • a plurality of the inner distribution holes in each kind of the hole units are arranged along the axial direction of the inner distribution pipe.
  • a variety of hole units are arranged along the axial direction of the inner distribution pipe; the length of the inner distribution pipe protruding into the outer distribution pipe is adjusted so that at least one of the hole units Said inner dispensing holes correspond to said outer dispensing holes in the unit.
  • a variety of hole units are arranged along the circumferential direction of the inner distribution pipe; the rotation angle of the inner distribution pipe along the circumferential direction is adjusted so that at least one of the hole units in the hole unit The inner distribution hole corresponds to the outer distribution hole.
  • the number of the outer distribution holes is multiple, and the plurality of outer distribution holes are arranged along the axial direction of the outer distribution pipe.
  • the outer distribution holes are circular holes, and the outer distribution holes are arranged along the axial direction of the outer distribution pipe.
  • the outer distribution hole is a long hole, and the outer distribution hole is arranged along the axial extension of the outer distribution pipe.
  • the diameters of the plurality of inner distribution holes in each kind of the hole units are the same.
  • the intervals between the plurality of inner distribution holes in each kind of the hole units are equal.
  • the spacing between the various hole units is equal.
  • the present application also provides a heat exchanger, including a header, a plurality of heat exchange tubes, and a refrigerant distribution device, and the refrigerant distribution device is the refrigerant distribution device described in any one of the above; wherein, the collection The flow pipe is sleeved outside the outer distribution pipe, and the outer distribution pipe communicates with the header through the outer distribution hole; a plurality of heat exchange tubes are arranged along the axial extension of the header, And the heat exchange tube communicates with the header.
  • Fig. 1 is a schematic structural diagram of a heat exchanger according to one or more embodiments.
  • FIG. 2 is a partial enlarged view of A in FIG. 1 .
  • Fig. 3 is a schematic structural view of the inner distribution pipe in Fig. 1 .
  • Fig. 4 is a partially enlarged view of the inner distribution pipe in Fig. 3 .
  • Fig. 5 is a schematic structural view of the outer distribution pipe in Fig. 1 .
  • Fig. 6 is a schematic structural diagram of a heat exchanger according to one or more embodiments.
  • FIG. 7 is a partial enlarged view of B in FIG. 6 .
  • Fig. 8 is a schematic structural view of the inner distribution pipe in Fig. 6 .
  • FIG. 9 is a cross-sectional view of the outer distribution pipe in FIG. 6 .
  • Fig. 10 is a schematic structural view of the outer distribution pipe in Fig. 6 .
  • 1000 heat exchanger
  • 100 refrigerant distribution device
  • 11/A/B hole unit
  • 111/a1/a2/a3/b1/b2/b3 inner distribution hole
  • 20 Outer distribution pipe; 21, Outer distribution hole
  • 200 Collector
  • 300 Heat exchange tube.
  • a component when a component is said to be “mounted on” another component, it may be directly mounted on another component or there may be an intervening component.
  • a component When a component is said to be “set on” another component, it may be set directly on the other component or there may be an intervening component at the same time.
  • a component When a component is said to be “fixed” to another component, it may be directly fixed to the other component or there may be an intervening component at the same time.
  • a refrigerant distribution device is usually provided in the header of the heat exchanger for distributing the refrigerant in the header of the heat exchanger.
  • the refrigerant distribution device in the current heat exchanger has a fixed distribution scheme for the refrigerant, and the refrigerant flow rate it distributes is also fixed. Due to the complexity of the two-phase refrigerant distribution, it is difficult for the refrigerant distribution device in the related art Realize multiple allocation schemes. If it is necessary to adjust the distribution scheme or flow rate of the refrigerant, it is necessary to replace another refrigerant distribution device, which is time-consuming and laborious. Therefore, in the related art, the flow rate of refrigerant distribution cannot be quickly adjusted, which greatly affects the work efficiency.
  • the present application provides a structure of a refrigerant distribution device 100, including an inner distribution pipe 10 and an outer distribution pipe 20, and the outer distribution pipe 20 is sleeved outside the inner distribution pipe 10; it is worth noting that the inner distribution pipe 10
  • the distribution pipe 10 is provided with various hole units 11 , each type of hole unit 11 includes a plurality of inner distribution holes 111 ; the outer distribution pipe 20 is provided with outer distribution holes 21 . Adjust the relative position of the inner distribution pipe 10 and the outer distribution pipe 20, so that the inner distribution hole 111 in at least one hole unit 11 corresponds to the outer distribution hole 21, and the refrigerant flows out from the inner distribution hole 111 and the outer distribution hole 21 in sequence .
  • the advantage of the refrigerant distributing device 100 provided in the present application is that: by providing various hole units 11 on the inner distributing pipe 10 , it is suitable for various distributing flow demands and has a wide range of applications. By adjusting and changing the relative position between the inner distributing pipe 10 and the outer distributing pipe 20, the required type of inner distributing hole 111 can be adjusted to correspond to the outer distributing hole 21, and the required inner distributing hole 111 can be flexibly selected without replacement.
  • the internal distribution pipe 10 improves work efficiency; and the refrigerant distribution device 100 provided by the present application completes the adjustment and selection of the types of the internal distribution holes 111 in the hole unit 11 without adding other structures. The structure is simple and the cost is reduced.
  • each hole unit 11 includes a plurality of inner distribution holes 111, for example, each kind of hole unit A in Fig. 3 and Fig. 4 includes inner distribution holes a1 and inner Distributing holes a2; for another example, hole unit A in Fig. 8 and Fig. 9 includes inner distribution holes a1, inner distribution holes a2, inner distribution holes a3, etc.
  • the number of inner distribution holes 111 in each hole unit 11 is not limited.
  • a plurality of inner distributing holes 111 in each hole unit 11 are arranged along the axial direction of the inner distributing pipe 10, so as to facilitate adjustment During the relative position between the inner distribution pipe 10 and the outer distribution pipe 20, the inner distribution hole 111 can be made to correspond to the outer distribution hole 21, so that the inner distribution pipe 10 can realize the connection with the header through the inner distribution hole 111 and the outer distribution hole 21. 200 , so that the refrigerant in the inner distribution pipe 10 is divided into the header 200 from the inner distribution hole 111 and the outer distribution hole 21 in sequence.
  • the arrangement of the multiple internal distribution holes 111 in each type of hole unit 11 is not limited to the above description or the illustration in the figure.
  • the apertures of a plurality of inner distributing holes 111 in each kind of hole unit 11 are the same, and a plurality of inner distributing holes 111 are distributed on the inner distributing pipe 10, and the same aperture of the inner distributing holes 111 can ensure that the inner distributing pipe 10
  • the refrigerant is evenly distributed everywhere.
  • the diameter of the inner distribution hole 111 is the same to facilitate the calculation of the amount of refrigerant distribution. Based on this, the relative position between the inner distribution pipe 10 and the outer distribution pipe 20 can be adjusted to improve the adjustment efficiency. efficiency.
  • the diameters of the plurality of inner distribution holes 111 in each type of hole unit 11 can also be different, so that the refrigerant flow rate distributed from various places on the inner distribution pipe 10 is different, so as to enhance the flow of the refrigerant in the header. Disturbance level within 200.
  • the intervals between the plurality of internal distribution holes 111 in each type of hole unit 11 are equal, so that the inner distribution holes 111 are arranged regularly, which facilitates the arrangement of the inner distribution holes 111 in various hole units 11 .
  • the distances between the plurality of internal distribution holes 111 in each type of hole unit 11 may also be unequal.
  • various hole units 11 are arranged along the axial direction of the inner distribution pipe 10 .
  • the length of the inner distributing pipe 10 protruding into the outer distributing pipe 20 is adjusted so that the inner distributing hole 111 in at least one hole unit 11 corresponds to the outer distributing hole 21 .
  • various hole units 11 are arranged on the inner distribution pipe 10 in FIG. 4 , which are numbered A, B, etc. respectively.
  • the inner distribution holes a1 and a2 of the hole unit A correspond to the outer distribution hole 21, and the inner distribution pipe 10 is moved so that the inner distribution holes b1 and b2 of the hole unit B correspond to the outer distribution hole 21, and the holes
  • the inner distribution holes a1 and a2 of the unit A are blocked by the inner wall of the outer distribution pipe 20, and the refrigerant in the inner distribution pipe 10 is in a high-pressure state, so the high-pressure refrigerant cannot pass through the inner distribution hole a1 of the blocked hole unit A. and a2 can only flow out from the inner distribution holes b1 and b2 of the hole unit B corresponding to the outer distribution hole 21 , so as to realize the replacement of the hole unit 11 .
  • various hole units 11 are arranged along the circumference of the inner distribution pipe 10, for example
  • the hole unit A, the hole unit B, the hole unit C, and the hole unit D are arranged along the circumferential direction of the inner distribution pipe 10, or other arrangement schemes are also possible.
  • a variety of hole units 11 are arranged along the circumferential direction of the inner distribution pipe 10; thereby adjusting the angle at which the inner distribution pipe 10 rotates along the circumferential direction can make at least one kind of hole
  • the inner distributing hole 111 in the unit 11 corresponds to the outer distributing hole 21 , thereby adjusting the flow rate of the refrigerant flowing out of the inner distributing pipe 10 .
  • the layout schemes of various hole units 11 are not limited to the embodiments shown in FIGS. 1-4 and 6-9 , and other layout schemes are also possible.
  • the spacing between the various hole units 11 is equal. Specifically referring to Fig. 3 and Fig. 4, in hole unit A, the distance between adjacent inner distribution holes a1 and inner distribution holes a2 is L a1 , and the distance between inner distribution holes a2 and inner distribution holes a3 is L a2 , in the hole unit B, the distance between the adjacent inner distribution hole b1 and the inner distribution hole b2 is L b1 , the distance between the inner distribution hole b2 and the inner distribution hole b3 is L b2 , the hole unit A and the hole unit The intervals between B are equal, which means that L a1 and L b1 corresponding to the positions are equal, and L a2 and L b2 are equal.
  • various hole units 11 are arranged circumferentially along the inner distribution pipe 10 , and a plurality of inner distribution holes 111 in each kind of hole unit 11 are arranged along the axis of the inner distribution pipe 10 .
  • the equal spacing between the various hole units 11 refers to the equal spacing between the corresponding inner distribution holes a1 and inner distribution holes b1.
  • various hole units 11 are uniformly arranged along the circumferential direction of the inner distribution pipe 10 , so that the intervals between the plurality of hole units 11 are equal.
  • there are various layout schemes for the arrangement and spacing between various hole units 11, and the spacing between various hole units 11 may also be unequal, and is not limited to the above-mentioned layout. plan.
  • a plurality of outer distributing holes 21 correspond to a plurality of inner distributing holes 111 in each kind of hole unit 11 respectively, and the relative positions of the inner distributing pipe 10 and the outer distributing pipe 20 are adjusted so that at least one kind of hole unit 11
  • the plurality of inner distribution holes 111 correspond to the outer distribution holes 21 one by one, of course, the inner distribution holes 111 in more than two kinds of hole units 11 correspond to the outer distribution holes 21, for example, the inner distribution holes a1 in the hole unit A
  • the inner distribution hole b1 in the hole unit B corresponds to the outer distribution hole 21 at the same time, and the flow rate of the refrigerant distributed by the outer distribution hole 21 is increased.
  • the arrangement of the outer distribution holes 21 is not limited to the above, and can be adjusted according to the applicability
  • the outer distributing hole 21 can be a circular hole, of course, in order to adapt to the scheme corresponding to a variety of inner distributing holes 111 and a single outer distributing hole 21, the outer distributing hole 21 may also be a long hole, such as the long hole shown in FIG. 10 . In other embodiments, the application does not limit the shape of the outer distribution pipe 20 .
  • the number of the outer distribution hole 21 is one, and the outer distribution hole 21 is a long hole, and the outer distribution hole 21 is arranged along the axial extension of the outer distribution pipe 20, so that when the inner distribution pipe 10 is rotated at a certain angle relative to the outer distribution pipe 20, so that the plurality of inner distribution holes 111 in at least one hole unit 11 correspond to the long holes, which can ensure that the plurality of inner distribution holes 111 communicate with the header 200 at the same time and perform refrigeration Dosage distribution.
  • the number of long holes may also be multiple, which is not limited here.
  • the plurality of outer distributing holes 21 correspond to the plurality of inner distributing holes 111 in each kind of hole unit 11 respectively, and the area of the plurality of one-to-one corresponding outer distribution holes 21 is smaller than that of each kind of hole unit.
  • the area of the plurality of inner distribution holes 111 in 11 is such that the plurality of outer distribution holes 21 play a certain throttling effect on the refrigerant, increasing the flow velocity of the refrigerant, thereby improving the refrigerant distribution efficiency.
  • the present application also provides a heat exchanger 1000 , which includes a header 200 , a plurality of heat exchange tubes 300 and a refrigerant distribution device 100 .
  • the header 200 is set outside the outer distribution pipe 20, and the outer distribution pipe 20 communicates with the header 200 through the outer distribution hole 21; a plurality of heat exchange tubes 300 are arranged along the axial direction of the header 200, and The tube 300 communicates with the header 200 .

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

一种制冷剂分配装置(100)及换热器(1000)。该制冷剂分配装置(100)包括内分配管(10)和外分配管(20)，外分配管(20)套设于内分配管(10)外；内分配管(10)上设置有多种孔单元(11)，每种孔单元(11)包括多个内分配孔(111)；外分配管(20)上开设有外分配孔(21)；调整内分配管(10)与外分配管(20)的相对位置，以使至少一种孔单元(11)中内分配孔(111)与外分配孔(21)对应，并让制冷剂依次从内分配孔(111)、外分配孔(21)流出。

Description

制冷剂分配装置及换热器
相关申请
本申请要求2021年10月14日申请的，申请号为202122479746.3，发明名称为“制冷剂分配装置及换热器”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
本申请涉及制冷设备技术领域，特别是涉及一种制冷剂分配装置及换热器。
背景技术
制冷剂分配装置应用于换热器内，用于在换热器的集流管内分配制冷剂。而目前换热器内的制冷剂分配装置分配的制冷剂流量是固定的，若是需要调整制冷剂流量的分配，只能更换另一种制冷剂分配装置，极其影响工作效率。
发明内容
根据本申请的各种实施例，提供一种制冷剂分配装置及换热器。
本申请提供的一种制冷剂分配装置，包括内分配管和外分配管，所述外分配管套设于所述内分配管外；所述内分配管上设置有多种孔单元，每种所述孔单元包括多个内分配孔；所述外分配管上开设有外分配孔；调整所述内分配管与所述外分配管的相对位置，以使至少一种所述孔单元中所述内分配孔与所述外分配孔对应，并让制冷剂依次从所述内分配孔、所述外分配孔流出。
在其中一个实施例中，每种所述孔单元内的多个所述内分配孔沿着所述内分配管的轴向排布。
在其中一个实施例中，多种所述孔单元沿着所述内分配管的轴向排布；调节所述内分配管伸入所述外分配管内的长度，以使至少一种所述孔单元中所述内分配孔与所述外分配孔对应。
在其中一个实施例中，多种所述孔单元沿着所述内分配管的周向排布；调节所述内分配管沿周向转动的角度，以使至少一种所述孔单元中所述内分配孔与所述外分配孔对应。
在其中一个实施例中，所述外分配孔设置的数量为多个，且多个所述外分配孔沿所述外分配管的轴向布设。
在其中一个实施例中，所述外分配孔为圆孔，且所述外分配孔沿所述外分配管的轴向布设。
在其中一个实施例中，所述外分配孔为长孔，且所述外分配孔沿所述外分配管的轴向延伸设置。
在其中一个实施例中，每种所述孔单元内的多个所述内分配孔的孔径相同。
在其中一个实施例中，每种所述孔单元内的多个所述内分配孔之间的间距相等。
在其中一个实施例中，多种所述孔单元之间的间距相等。
本申请还提供一种换热器，包括集流管、多根换热管和制冷剂分配装置，所述制冷剂分配装置为以上任意一项所述的制冷剂分配装置；其中，所述集流管套设在所述外分配管外，所述外分配管通过所述外分配孔与所述集流管连通；多根所述换热管沿所述集流管的轴向延伸设置，且所述换热管与所述 集流管连通。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更好地描述和说明这里公开的那些发明的实施例和/或示例，可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的发明、目前描述的实施例和/或示例以及目前理解的这些发明的最佳模式中的任何一者的范围的限制。
图1为根据一个或多个实施例的换热器的结构示意图。
图2为图1中的A处局部放大图。
图3为图1的内分配管的结构示意图。
图4为图3中的内分配管的局部放大图。
图5为图1中的外分配管的结构示意图。
图6为根据一个或多个实施例的换热器的结构示意图。
图7为图6中的B处局部放大图。
图8为图6中的内分配管的结构示意图。
图9为图6中的外分配管的横截面图。
图10为图6中的外分配管的结构示意图。
图中，1000、换热器；100、制冷剂分配装置；10、内分配管；11/A/B、孔单元；111/a1/a2/a3/b1/b2/b3、内分配孔；20、外分配管；21、外分配孔；200、集流管；300、换热管。
具体实施方式
下面将结合本申请实施方式中的附图，对本申请实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式仅仅是本申请一部分实施方式，而不是全部的实施方式。基于本申请中的实施方式，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施方式，都属于本申请保护的范围。
需要说明的是，当组件被称为“装设于”另一个组件，它可以直接装设在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“设置于”另一个组件，它可以是直接设置在另一个组件上或者可能同时存在居中组件。当一个组件被认为是“固定于”另一个组件，它可以是直接固定在另一个组件上或者可能同时存在居中组件。
除非另有定义，本申请所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。本申请所使用的术语“或/及”包括一个或多个相关的所列项目的任意的和所有的组合。
为了避免制冷剂分配不均的问题，通常在换热器的集流管内设置制冷剂分配装置，用于在换热器的集流管内分配制冷剂。然而目前换热器内的制冷剂分配装置对制冷剂的分配方案是固定的，其分配的制冷剂流量也是固定的，由于两相制冷剂分配的复杂性，相关技术中的制冷剂分配装置难以实现多种分配方案。若是需要调整制冷剂的分配方案或流量，只能更换另一种制冷剂分配装置，费时费力，因此相关技术中无法快速的调整制冷剂分配的流量，极其影响工作效率。
参阅图1-图10，本申请提供一种制冷剂分配装置100的结构，包括内分 配管10和外分配管20，外分配管20套设于内分配管10外；值得注意的是，内分配管10上设置有多种孔单元11，每种孔单元11包括多个内分配孔111；外分配管20上开设有外分配孔21。调整内分配管10与外分配管20的相对位置，以使至少一种孔单元11中内分配孔111与外分配孔21对应，并让制冷剂依次从内分配孔111、外分配孔21流出。
本申请提供的制冷剂分配装置100的优点在于：通过在内分配管10上设置多种孔单元11，适用于多种分配流量的需求，应用范围广泛。通过调整改变内分配管10和外分配管20之间的相对位置，能够通过调整使得所需类型的内分配孔111与外分配孔21对应，灵活选用所需的内分配孔111，从而无需更换内分配管10，提高工作效率；且本申请提供的制冷剂分配装置100在不增设其他结构的基础上，完成孔单元11中内分配孔111种类的调整选用，结构简单，降低成本。
需要说明的是，参阅图3、图4、图8和图9，每种孔单元11包括多个内分配孔111，例如图3和图4中每种孔单元A包括内分配孔a1和内分配孔a2；又例如图8和图9中孔单元A包括内分配孔a1、内分配孔a2、内分配孔a3等，每种孔单元11内的内分配孔111的数量不限。
参阅图3和图4，或参阅图8和图9，在其中一个实施例中，每种孔单元11内的多个内分配孔111沿着内分配管10的轴向排布，以便于调节内分配管10和外分配管20之间的相对位置时，能够使内分配孔111与外分配孔21相对应，从而内分配管10通过内分配孔111和外分配孔21实现与集流管200内部的连通，以使得内分配管10内的制冷剂依次从内分配孔111、外分配孔21分流至集流管200内。当然，在其他实施例中，每种孔单元11内的多个内分配孔111的布设方式不局限于以上所述或图中所示。
进一步，参阅图3，每种孔单元11内的多个内分配孔111的孔径相同，多个内分配孔111分布在内分配管10上，内分配孔111的孔径相同能够确保内分配管10上各处制冷剂均匀分配。另外，在预估所需制冷剂流量时，内分配孔111的孔径相同便于计算制冷剂分配的量，以此为依据调节内分配管10和外分配管20之间的相对位置，提高调节的效率。在其他实施例中，每种孔单元11中的多个内分配孔111的孔径也可以不相同，从而从内分配管10上各处分配的制冷剂流量不同，以增强制冷剂在集流管200内的扰流程度。
参阅图3，每种孔单元11内的多个内分配孔111之间的间距相等，以使得内分配孔111布设规整，从而有利于布设多种孔单元11中的内分配孔111。当然，在其他实施例中，每种孔单元11中的多个内分配孔111之间的间距也可以是不相等的。
参阅图1-图4，多种孔单元11沿着内分配管10的轴向排布。调节内分配管10伸入外分配管20内的长度，以使至少一种孔单元11中的内分配孔111与外分配孔21对应。例如，参阅图4，图4中的内分配管10上布设多种孔单元11，分别为其编号为A、B等。在未调节前，孔单元A的内分配孔a1和a2与外分配孔21对应，将内分配管10移动，可以使得孔单元B的内分配孔b1和b2与外分配孔21对应，而孔单元A的内分配孔a1和a2则被外分配管20的内壁遮挡，且内分配管10内的制冷剂为高压状态，因此高压的制冷剂无法从被遮挡的孔单元A的内分配孔a1和a2流出，只能从与外分配孔21对应贯通的孔单元B的内分配孔b1和b2流出，从而实现孔单元11的更换。当然，多种孔单元11的布设方案不局限于以上所述，例如也可以是如图6-图9所示的实施例中，多种孔单元11沿内分配管10的周向布设，例如孔单元A、孔单元B、孔单元C、孔单元D沿内分配管10的周向布设，或者也可以是其他 布设方案。
具体参阅图6-图9所示的实施例中，多种孔单元11沿着内分配管10的周向排布；从而调节内分配管10沿周向转动的角度，可使至少一种孔单元11中的内分配孔111与外分配孔21对应，进而调节从内分配管10流出的制冷剂的流量。当然在其他实施例中，多种孔单元11的布设方案也不局限于图1-图4和图6-图9所示的实施例，也可以是其他的布设方案。
多种孔单元11之间的间距相等。具体参阅图3和图4，在孔单元A内，相邻的内分配孔a1和内分配孔a2之间的间距为L a1，内分配孔a2和内分配孔a3之间的间距为L a2，在孔单元B内，相邻的内分配孔b1和内分配孔b2之间的间距为L b1，内分配孔b2和内分配孔b3之间的间距为L b2，孔单元A和孔单元B之间的间距相等，指的是位置相对应的L a1与L b1相等，L a2与L b2相等。或者，例如图8和图9所示的实施例中，多种孔单元11沿内分配管10周向布设，且每种孔单元11内的多个内分配孔111沿内分配管10的轴向分布，则多种孔单元11之间的间距相等指的是相对应的内分配孔a1和内分配孔b1之间的间距相等。也可以理解为，在本实施例中，多种孔单元11沿内分配管10的周向均匀布设，从而多个孔单元11之间的间距相等。当然，在其他实施例中，多种孔单元11之间的排布和间距存在的多种布设方案，多种孔单元11之间的间距也可以不相等，并不局限于以上所述的布设方案。
参阅图1、图2和图5，外分配孔21设置的数量为多个，且多个外分配孔21沿外分配管20的轴向布设。如此，多个外分配孔21分别与每种孔单元11中的多个内分配孔111一一对应，调整内分配管10和外分配管20的相对位置，以使至少一种孔单元11中的多个内分配孔111与外分配孔21一一对应，当然也可以是两种以上的孔单元11中的内分配孔111与外分配孔21对应，例 如孔单元A中的内分配孔a1与孔单元B中的内分配孔b1同时与外配分孔21对应，增大该外分配孔21分配的制冷剂的流量。当然，在其他实施例中，外分配孔21布设的方案不局限于以上所述，可依据内分配孔111布设的方案做适用性的调整。
在其中一个实施例中，参阅图1、图2和图5，外分配孔21可以是圆孔，当然，为适应于多种内分配孔111与单个外分配孔21对应的方案，外分配孔21也可以是长孔，例如图10中所示的长孔。在其他的实施例中，本申请对外分配管20的形状不做限制。
参阅图6、图7和图10，外分配孔21设置的数量为一个，且外分配孔21为长孔，外分配孔21沿外分配管20的轴向延伸设置，如此，当内分配管10相对于外分配管20转动一定的角度，使得至少一种孔单元11内的多个内分配孔111与长孔对应，可以确保多个内分配孔111与集流管200同时连通并进行制冷剂的分配。在其他实施例中，长孔设置的数量也可以是多个，此处不做限制。
在其中一个实施例中，多个外分配孔21分别与每种孔单元11中的多个内分配孔111一一对应，且一一对应的多个外分配孔21的面积小于每种孔单元11中的多个内分配孔111的面积，以使得多个外分配孔21对制冷剂起到一定的节流作用，增加制冷剂的流速，从而提高制冷剂分配效率。
参阅图1和图6，本申请还提供一种换热器1000，该换热器1000包括集流管200、多根换热管300和制冷剂分配装置100。其中，集流管200套设在外分配管20外，外分配管20通过外分配孔21与集流管200连通；多根换热管300沿集流管200的轴向延伸设置，且换热管300与集流管200连通。
此外，需要说明的是，使用“第一”、“第二”等词语来限定零部件， 仅仅是为了便于对相应零部件进行区别，如没有另行声明，上述词语并没有特殊含义，因此不能理解为对本申请保护范围的限制。
以上实施方式的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施方式中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
本技术领域的普通技术人员应当认识到，以上的实施方式仅是用来说明本申请，而并非用作为对本申请的限定，只要在本申请的实质精神范围内，对以上实施方式所作的适当改变和变化都落在本申请要求保护的范围内。

Claims (11)

  1. 一种制冷剂分配装置，包括内分配管和外分配管，所述外分配管套设于所述内分配管外；
    其特征在于，所述内分配管上设置有多种孔单元，每种所述孔单元包括多个内分配孔；所述外分配管上开设有外分配孔；
    调整所述内分配管与所述外分配管的相对位置，以使至少一种所述孔单元中所述内分配孔与所述外分配孔对应，并让制冷剂依次从所述内分配孔、所述外分配孔流出。
  2. 根据权利要求1所述制冷剂分配装置，其中，每种所述孔单元内的多个所述内分配孔沿着所述内分配管的轴向排布。
  3. 根据权利要求1所述制冷剂分配装置，其中，多种所述孔单元沿着所述内分配管的轴向排布；调节所述内分配管伸入所述外分配管内的长度，以使至少一种所述孔单元中所述内分配孔与所述外分配孔对应。
  4. 根据权利要求1所述制冷剂分配装置，其中，多种所述孔单元沿着所述内分配管的周向排布；调节所述内分配管沿周向转动的角度，以使至少一种所述孔单元中所述内分配孔与所述外分配孔对应。
  5. 根据权利要求3或4所述制冷剂分配装置，其特征在于，所述外分配孔设置的数量为多个，且多个所述外分配孔沿所述外分配管的轴向布设。
  6. 根据权利要求3所述制冷剂分配装置，其中，所述外分配孔为圆孔，且所述外分配孔沿所述外分配管的轴向布设。
  7. 根据权利要求4所述制冷剂分配装置，其中，所述外分配孔为长孔，且所述外分配孔沿所述外分配管的轴向延伸设置。
  8. 根据权利要求1所述制冷剂分配装置，其中，每种所述孔单元内的多个所述内分配孔的孔径相同。
  9. 根据权利要求1所述制冷剂分配装置，其中，每种所述孔单元内的多个所述内分配孔之间的间距相等。
  10. 根据权利要求1所述制冷剂分配装置，其中，多种所述孔单元之间的间距相等。
  11. 一种换热器，其特征在于，包括集流管、多根换热管和制冷剂分配装置，所述制冷剂分配装置为权利要求1-10中任意一项所述的制冷剂分配装置；
    其中，所述集流管套设在所述外分配管外，所述外分配管通过所述外分配孔与所述集流管连通；多根所述换热管沿所述集流管的轴向延伸设置，且所述换热管与所述集流管连通。
PCT/CN2022/124346 2021-10-14 2022-10-10 制冷剂分配装置及换热器 WO2023061323A1 (zh)

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