CN215216776U - Evaporator with a heat exchanger - Google Patents
Evaporator with a heat exchanger Download PDFInfo
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- CN215216776U CN215216776U CN202121115338.3U CN202121115338U CN215216776U CN 215216776 U CN215216776 U CN 215216776U CN 202121115338 U CN202121115338 U CN 202121115338U CN 215216776 U CN215216776 U CN 215216776U
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Abstract
An evaporator, comprising: the first core comprises a first collecting pipe, a second collecting pipe and a plurality of first heat exchange tubes communicated with the first collecting pipe and the second collecting pipe, and the first collecting pipe is communicated with a refrigerant inlet; the second core body comprises a third collecting pipe, a fourth collecting pipe and a plurality of second heat exchange tubes communicated with the third collecting pipe and the fourth collecting pipe, and the fourth collecting pipe is communicated with a refrigerant outlet; the connecting pipe is connected with the second collecting pipe and the third collecting pipe so as to communicate the first core body with the second core body; the first core body comprises a first inner volume for circulating a refrigerant, the second core body comprises a second inner volume for circulating the refrigerant, and the second inner volume is larger than the first inner volume. So set up, improved the heat transfer performance of evaporimeter.
Description
Technical Field
The utility model relates to an evaporator belongs to refrigerating system spare part technical field.
Background
The existing evaporator is generally designed to have multiple layers, i.e. two or more layers, in order to improve the heat exchange capability. Such a multi-layered evaporator generally includes a first header at one end, a second header at the other end, a plurality of heat exchange tubes communicating the first header and the second header, and a plurality of fins fixed to the heat exchange tubes. The heat exchange tube is bent to form a plurality of layers.
The evaporator with the structure has the advantage that only two collecting pipes are needed, wherein one collecting pipe is communicated with the refrigerant inlet, and the other collecting pipe is communicated with the refrigerant outlet, so that the number of parts is saved.
However, the disadvantages of this design are: the heat exchange tube is easy to be damaged when being bent, thereby reducing the durability of the product; the bent part of the heat exchange tube cannot be provided with the fins, so that air leaks from the top of the evaporator, and the heat exchange performance is affected; each layer of the multi-layer evaporator has the same structure, and the heat exchange capacity of each layer cannot be adjusted, so that the heat exchange of the layer connected with the refrigerant inlet is huge, and a large amount of condensed water on the side is accumulated to influence the electrical property of equipment; in addition, the flow direction of the refrigerant in at least one layer of the evaporator has a downward component (whether vertical downward or inclined downward), when the refrigerant is in a gas-liquid two-phase state, the gaseous refrigerant tends to flow upwards due to small volume, and the design has to force the refrigerant to flow downwards, which causes great flow resistance of the refrigerant and influences the performance of the evaporator.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a better evaporimeter of heat transfer ability.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an evaporator, comprising:
the first core comprises a first collecting pipe, a second collecting pipe and a plurality of first heat exchange tubes communicated with the first collecting pipe and the second collecting pipe, and the first collecting pipe is communicated with a refrigerant inlet;
the second core body comprises a third collecting pipe, a fourth collecting pipe and a plurality of second heat exchange tubes communicated with the third collecting pipe and the fourth collecting pipe, and the fourth collecting pipe is communicated with a refrigerant outlet; and
the connecting pipe is connected with the second collecting pipe and the third collecting pipe so as to communicate the first core body with the second core body;
the first core body comprises a first inner volume for circulating a refrigerant, the second core body comprises a second inner volume for circulating the refrigerant, and the second inner volume is larger than the first inner volume;
the evaporator comprises a first distribution pipe communicated with the refrigerant inlet, at least part of the first distribution pipe is positioned in the first collecting pipe, and the first distribution pipe is provided with a plurality of first distribution holes for allowing the refrigerant to flow out of the first distribution pipe;
the connecting pipe comprises a second distributing pipe at least partially positioned in the third collecting pipe, and the second distributing pipe is provided with a plurality of second distributing holes for allowing the refrigerant to flow out of the second distributing pipe.
As a further improved technical solution of the present invention, the position of the second collecting pipe is higher than the first collecting pipe, the position of the fourth collecting pipe is higher than the third collecting pipe, the position of the second collecting pipe is higher than the third collecting pipe.
As a further improved technical solution of the present invention, the second collecting pipe and the fourth collecting pipe are arranged side by side and are fixedly connected together.
As a further improved technical solution of the present invention, the evaporator includes a top mounting bracket fixed to the second collecting pipe and/or the fourth collecting pipe; the evaporator comprises a bottom mounting bracket fixed on the first collecting pipe and/or the third collecting pipe.
As a further improved technical solution of the present invention, the connecting pipe extends along the side portion of the second core body.
As a further improved technical scheme of the utility model, correspond to on the first core the regional thickness of first heat exchange tube is less than on the second core correspond to the regional thickness of second heat exchange tube.
As a further improved technical scheme of the utility model, the pipe diameter of first pressure manifold with the pipe diameter of second pressure manifold is the same, the pipe diameter of third pressure manifold with the pipe diameter of fourth pressure manifold is the same, first pressure manifold the second pressure manifold the pipe diameter is less than the third pressure manifold the fourth pressure manifold the pipe diameter.
As the utility model discloses further modified technical scheme, first core still include with first heat exchange tube is fixed first fin mutually, the second core still include with second heat exchange tube is fixed second fin mutually.
As a further improved technical solution of the present invention, the first fin and the second fin have different structures.
As a further improved technical scheme of the utility model, the top of evaporimeter is not leaked out, the refrigerant is in flow in the first core and the refrigerant is in flow in the second core all has ascending weight.
Compared with the prior art, the utility model has the advantages that the first core body and the second core body can be independently designed, and the design flexibility is larger; in addition, the second inner volume is designed to be larger than the first inner volume, when the refrigerant flows in the first core, the first inner volume with the smaller inner volume is favorable for improving the flow velocity of the refrigerant and reducing the flow resistance due to the higher specific gravity of the liquid refrigerant, so that the heat exchange performance is improved; when the refrigerant flows in the second core body, the specific gravity of the gaseous refrigerant is higher, and the second inner volume with the larger inner volume is favorable for improving the flow velocity of the refrigerant and reducing the flow resistance, so that the heat exchange performance is improved; in addition, through the arrangement of the connecting pipe, when the refrigerant flows into the second core body from the first core body, secondary distribution of the refrigerant can be realized, so that the distribution uniformity of the refrigerant is improved, and the heat exchange performance is improved.
Drawings
Fig. 1 is a schematic perspective view of an evaporator according to an embodiment of the present invention.
Fig. 2 is a perspective view of fig. 1 from another angle.
Fig. 3 is a front view of fig. 1.
Fig. 4 is a rear view of fig. 1.
Fig. 5 is a right side view of fig. 1.
Fig. 6 is a schematic view of the evaporator of fig. 3 in cooperation with a fan, in which the wind direction of the fan and the flow sequence and direction of the refrigerant are indicated.
Fig. 7 is a perspective view of fig. 1 from yet another angle.
Fig. 8 is a perspective view taken along the line a-a in fig. 7.
Detailed Description
Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. If several embodiments exist, the features of these embodiments may be combined with each other without conflict. When the description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The description set forth below in the exemplary detailed description does not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatus, products, and/or methods consistent with certain aspects of the invention, as recited in the claims of the invention.
The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in the specification and claims of this application, the singular form of "a", "an", or "the" is intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the terms "first," "second," and the like as used in the description and in the claims of the present invention do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the terms "front," "back," "up," "down," and the like in the description of the invention are used for convenience of description and are not limited to a particular position or spatial orientation. The word "comprise" or "comprises", and the like, is an open-ended expression meaning that an element that precedes "includes" or "comprising" includes "that the element that follows" includes "or" comprises "and its equivalents, that do not preclude the element that precedes" includes "or" comprising "from also including other elements. If the utility model discloses in appear "a plurality of", its meaning indicates two and more than two.
Referring to fig. 1 to 8, the present invention discloses a multi-layered evaporator 100, which includes a first core 1, a second core 2, and a connecting pipe 3 connecting the first core 1 and the second core 2. In the illustrated embodiment of the present invention, the first core 1 and the second core 2 form a first layer and a second layer of the evaporator 100, respectively, wherein the first core 1 is located upstream of the second core 2 in a refrigerant flow direction. In the illustrated embodiment of the present invention, the first core 1 and the second core 2 are at an included angle, and the evaporator 100 includes an included angle space 10 between the first core 1 and the second core 2. The angled space 10 is used to mount a fan 200 (shown in fig. 6). Of course, in other embodiments, the first core 1 and the second core 2 may be parallel to each other and vertically arranged.
The first core 1 includes a first collecting pipe 11, a second collecting pipe 12, a plurality of first heat exchange tubes 13 communicating the first collecting pipe 11 with the second collecting pipe 12, and a plurality of first fins 14 fixed to the first heat exchange tubes 13. In the illustrated embodiment of the present invention, the first heat exchanging pipe 13 is flat, and a plurality of pipes (not numbered) are disposed in parallel inside the first heat exchanging pipe. The pipeline is used for enabling the refrigerant to circulate to improve the heat exchange effect. The second collecting pipe 12 is higher than the first collecting pipe 11, and the first collecting pipe 11 is communicated (directly or indirectly) with the refrigerant inlet 15. Specifically, in an embodiment of the present invention, the first collecting pipe 11 with the second collecting pipe 12 is a hollow cylindrical pipe, just the pipe diameter of the first collecting pipe 11 with the pipe diameter of the second collecting pipe 12 is the same, and this kind of design can be made to a certain extent the first collecting pipe 11 with the part sharing is realized to the second collecting pipe 12, thereby saving the cost.
In an embodiment of the present invention, the first core 1 includes a first distributing pipe 16 directly connected to the refrigerant inlet 15 and at least partially located in the first collecting pipe 11. In the illustrated embodiment of the present invention, the end of the first distributing pipe 16 opposite to the refrigerant inlet 15 extends beyond the first collecting pipe 11, so as to be fixed. The first distribution pipe 16 is provided with a plurality of first distribution holes (not shown) communicating with the inner cavity of the first header 11. The first distributing hole is used for relatively uniformly flowing the refrigerant out of the first distributing pipe 16, so as to be beneficial to uniformly distributing the refrigerant in the first collecting pipe 11 and uniformly flowing the refrigerant to the first heat exchanging pipe 13.
The second core body 2 comprises a third collecting pipe 21, a fourth collecting pipe 22, a plurality of second heat exchange tubes 23 communicating the third collecting pipe 21 with the fourth collecting pipe 22, and a plurality of second fins 24 fixed with the second heat exchange tubes 23. In the illustrated embodiment of the present invention, the second heat exchanging pipe 23 is flat, and a plurality of pipes (not numbered) are disposed in parallel inside the second heat exchanging pipe. The pipeline is used for enabling the refrigerant to circulate to improve the heat exchange effect. The position of the fourth collecting pipe 22 is higher than that of the third collecting pipe 21, and the fourth collecting pipe 22 is communicated (directly or indirectly) with the refrigerant outlet 25. Specifically, in an embodiment of the present invention, the third collecting pipe 21 with the fourth collecting pipe 22 is a hollow cylindrical pipe, and the pipe diameter of the third collecting pipe 21 is the same as the pipe diameter of the fourth collecting pipe 22, and this kind of design can be made to a certain extent the third collecting pipe 21 with the part sharing is realized to the fourth collecting pipe 22, so as to save the cost. In the illustrated embodiment of the present invention, the pipe diameter of the first collecting pipe 11 and the second collecting pipe 12 is smaller than that of the third collecting pipe 21 and that of the fourth collecting pipe 22.
The position of the second collecting pipe 12 is higher than that of the third collecting pipe 21, and the connecting pipe 3 connects the second collecting pipe 12 and the third collecting pipe 21 to communicate the first core body 1 with the second core body 2. The connecting pipe 3 is provided with a second distribution pipe 31 located at least partially in the third header 21. In the illustrated embodiment of the present invention, one end of the second distribution pipe 31 extends beyond the third header 21, so as to achieve the fixing. The second distribution pipe 31 is provided with a plurality of second distribution holes (not shown) communicating with the inner cavity of the third header 21. The second distribution holes are used for relatively uniformly flowing the refrigerant out of the second distribution pipe 31, so as to facilitate the refrigerant to be uniformly distributed in the third collecting pipe 21 and uniformly flow towards the second heat exchange pipe 23. The exposed portion of the connection tube 3 extends along the side of the second core 2 to reduce the volume as much as possible.
The utility model discloses in, first core 1 is including the first interior volume that is used for circulating the refrigerant, second core 2 is including being used for circulating the second interior volume of refrigerant, wherein the second interior volume is greater than first interior volume. In an embodiment of the present invention, the first internal volume is a volume formed by an inner cavity of the first collecting pipe 11, an inner cavity of the first heat exchanging pipe 13, and an inner cavity of the second collecting pipe 12; the second internal volume is a volume formed by an inner cavity of the third collecting pipe 21, an inner cavity of the second heat exchange pipe 23 and an inner cavity of the fourth collecting pipe 22. Of course, in other embodiments, the first internal volume may also be a volume formed by an inner cavity of the first distribution pipe 16 extending into the first header 11, an inner cavity of the first header 11 excluding the first distribution pipe 16, an inner cavity of the first heat exchange pipe 13, and an inner cavity of the second header 12; the second internal volume is a volume formed by an inner cavity of the second distribution pipe 31 extending into the third collecting pipe 21, an inner cavity of the third collecting pipe 21 excluding the second distribution pipe 31, an inner cavity of the second heat exchange pipe 23, and an inner cavity of the fourth collecting pipe 22.
Specifically, the thickness D1 of the region of the first core 1 corresponding to the first heat exchange tube 13 is smaller than the thickness D2 of the region of the second core 2 corresponding to the second heat exchange tube 23.
In the illustrated embodiment of the present invention, the first header 11 and the third header 21 are located at the bottom of the evaporator 100, and the second header 12 and the fourth header 22 are located at the top of the evaporator 100. The evaporator 100 includes a top mounting bracket 41 fixed to the second header 12 and/or the fourth header 22; the evaporator 100 includes a bottom mounting bracket 42 fixed to the first header 11 and/or the third header 21.
The second header 12 and the fourth header 22 are arranged side by side and are fixedly connected together. For example, the second header 12 and the fourth header 22 are directly fixed together by brazing; or the second header 12 and the fourth header 22 are fixed together by brazing with a joint block therebetween. Preferably, the second header 12 and the fourth header 22 are attached and fixed to each other, which has the following advantages: first, the structural strength of the evaporator 100 can be improved; secondly, the top of the evaporator 100 can be free from air leakage, thereby improving the heat exchange performance of the evaporator 100; thirdly, the top mounting bracket 41 is facilitated to be mounted.
Referring to fig. 6, the working principle of the evaporator 100 of the present invention is as follows: a low-temperature liquid refrigerant or a gas-liquid two-phase refrigerant with a high specific gravity flows into the first core 1 from the refrigerant inlet 15, wherein the refrigerant is uniformly distributed under the action of the first distribution pipe 16, and then flows upward to the second collecting pipe 12 through the first heat exchange pipe 13. In this process, the refrigerant absorbs heat in the air through the first core 1, and becomes a gas-liquid two-phase refrigerant. At this time, moisture in the air is condensed into condensed water on the surface of the first core 1. Then, the gas-liquid two-phase refrigerant flows from the connection pipe 3 into the third header 21, and passes through the second distribution pipe 31 to realize secondary distribution of the refrigerant. Specifically, the gas-liquid two-phase refrigerant is uniformly distributed by the second distribution pipe 31, and then the gas-liquid two-phase refrigerant flows upward to the fourth collecting pipe 22 through the second heat exchange pipe 23. In the process, the gas-liquid two-phase refrigerant further absorbs the heat in the air through the second core body 2, so that the refrigerant is further vaporized. At this time, moisture in the air condenses into condensed water on the surface of the second core 2. Finally, the refrigerant exits the evaporator 100 through the refrigerant outlet 25.
Compared with the prior art, the second inner volume of the second core body 2 is larger than the first inner volume of the first core body 1, and when a liquid refrigerant or a gas-liquid two-phase refrigerant with a high specific gravity of the liquid refrigerant flows through the first core body 1 with a small first inner volume, the flow resistance of the refrigerant can be reduced, so that the heat exchange efficiency is improved; in addition, when the refrigerant is vaporized and expanded in volume and then flows through the second core body 2 having a larger second inner volume, the flow resistance of the refrigerant can be reduced, thereby improving the heat exchange efficiency. In addition, the first core 1 and the second core 2 of the design can be provided with distribution pipes suitable for different refrigerant dryness, so that the efficiency is optimized. This design also balances the heat exchange capacity of the first core 1 and the second core 2, and avoids excessive condensation on the first core 1 due to the great difference between the heat exchange capacities. The utility model provides a refrigerant can realize the secondary distribution in the third pressure manifold 21 to be favorable to promoting the refrigerant and be in the homogeneity that flows in the second core 2. The flow of the refrigerant in the first core 1 and the flow of the refrigerant in the second core 2 both have an upward component. In particular, the refrigerant flows in the second core 2 all have upward components, which enables the refrigerant to gradually vaporize when flowing in the second core 2, thereby facilitating reduction of internal resistance and improvement of performance. The utility model discloses an in the embodiment, first core 1 with second core 2 is independent subassembly, the heat transfer ability accessible of the 100 left and right sides of evaporimeter changes heat exchange tube and fin and adjusts to management and control comdenstion water condensation state avoids local comdenstion water too much to lead to water to be blown out by fan 200, brings into in the room and influences equipment electricity. In an embodiment of the present invention, the first fins 14 and the second fins 24 have different structures, for example, fins with different heights are used to balance the condensed water discharge capacity of two sides, so as to optimize the cost and improve the performance. Additionally, the utility model discloses a first heat exchange tube 13 and second heat exchange tube 23 can reduce the process of bending of customer end to reduce the damage rate of heat exchange tube, improve the durability of product.
The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present invention should be based on the technical personnel in the technical field, although the present specification has been described in detail with reference to the above embodiments, however, the skilled in the art should understand that the technical personnel in the technical field can still modify the present invention or substitute the same, and all technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.
Claims (10)
1. An evaporator (100), comprising:
the heat exchanger comprises a first core body (1), wherein the first core body (1) comprises a first collecting pipe (11), a second collecting pipe (12) and a plurality of first heat exchange pipes (13) for communicating the first collecting pipe (11) with the second collecting pipe (12), and the first collecting pipe (11) is communicated with a refrigerant inlet (15);
the second core body (2), the second core body (2) comprises a third collecting pipe (21), a fourth collecting pipe (22) and a plurality of second heat exchange pipes (23) communicating the third collecting pipe (21) with the fourth collecting pipe (22), and the fourth collecting pipe (22) is communicated with a refrigerant outlet (25); and
a connecting pipe (3), wherein the connecting pipe (3) connects the second collecting pipe (12) and the third collecting pipe (21) to communicate the first core (1) and the second core (2);
the first core (1) comprises a first inner volume for circulating a refrigerant, and the second core (2) comprises a second inner volume for circulating the refrigerant, wherein the second inner volume is larger than the first inner volume;
the evaporator (100) comprises a first distribution pipe (16) communicated with the refrigerant inlet (15), at least part of the first distribution pipe (16) is positioned in the first collecting pipe (11), and the first distribution pipe (16) is provided with a plurality of first distribution holes for allowing the refrigerant to flow out of the first distribution pipe (16);
the connecting pipe (3) comprises a second distribution pipe (31) at least partially positioned in the third collecting pipe (21), and the second distribution pipe (31) is provided with a plurality of second distribution holes for allowing the refrigerant to flow out of the second distribution pipe (31).
2. The evaporator (100) of claim 1, wherein: the position of the second collecting pipe (12) is higher than that of the first collecting pipe (11), the position of the fourth collecting pipe (22) is higher than that of the third collecting pipe (21), and the position of the second collecting pipe (12) is higher than that of the third collecting pipe (21).
3. The evaporator (100) of claim 2, wherein: the second collecting pipe (12) and the fourth collecting pipe (22) are arranged side by side and are fixedly connected together.
4. The evaporator (100) of claim 3, wherein: the evaporator (100) comprises a top mounting bracket (41) fixed to the second header (12) and/or the fourth header (22); the evaporator (100) comprises a bottom mounting bracket (42) fixed to the first header (11) and/or the third header (21).
5. The evaporator (100) of claim 2, wherein: the connecting tube (3) extends along the side of the second core (2).
6. The evaporator (100) of claim 1, wherein: the thickness (D1) of the region of the first core (1) corresponding to the first heat exchange tube (13) is smaller than the thickness (D2) of the region of the second core (2) corresponding to the second heat exchange tube (23).
7. The evaporator (100) of claim 1, wherein: the pipe diameter of the first collecting pipe (11) is the same as that of the second collecting pipe (12), the pipe diameter of the third collecting pipe (21) is the same as that of the fourth collecting pipe (22), and the pipe diameters of the first collecting pipe (11) and the second collecting pipe (12) are smaller than those of the third collecting pipe (21) and the fourth collecting pipe (22).
8. The evaporator (100) of claim 1, wherein: the first core (1) further comprises a first fin (14) fixed with the first heat exchange tube (13), and the second core (2) further comprises a second fin (24) fixed with the second heat exchange tube (23).
9. The evaporator (100) of claim 8, wherein: the first fin (14) and the second fin (24) have different structures.
10. The evaporator (100) of any of claims 1 to 9, wherein: the top of the evaporator (100) has no air leakage, and the flow of the refrigerant in the first core (1) and the flow of the refrigerant in the second core (2) both have an upward component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121115338.3U CN215216776U (en) | 2021-05-24 | 2021-05-24 | Evaporator with a heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121115338.3U CN215216776U (en) | 2021-05-24 | 2021-05-24 | Evaporator with a heat exchanger |
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| Publication Number | Publication Date |
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| CN215216776U true CN215216776U (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121115338.3U Active CN215216776U (en) | 2021-05-24 | 2021-05-24 | Evaporator with a heat exchanger |
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| CN (1) | CN215216776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188273A (en) * | 2021-05-24 | 2021-07-30 | 浙江酷灵信息技术有限公司 | Evaporator with a heat exchanger |
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2021
- 2021-05-24 CN CN202121115338.3U patent/CN215216776U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188273A (en) * | 2021-05-24 | 2021-07-30 | 浙江酷灵信息技术有限公司 | Evaporator with a heat exchanger |
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Effective date of registration: 20230109 Address after: 313300 workshop 03, floor 1, building 2, No. 198, peninsula Middle Road, Dipu street, Anji County, Huzhou City, Zhejiang Province Patentee after: Zhejiang Zhiling Technology Co.,Ltd. Address before: 311100 room 1112, building 3, yuzhicheng, Nanyuan street, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: Zhejiang Kuling Information Technology Co.,Ltd. |