CN117989761A - Composite finned tube condenser for air curtain cabinet, refrigerating system and air curtain cabinet - Google Patents

Composite finned tube condenser for air curtain cabinet, refrigerating system and air curtain cabinet Download PDF

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Publication number
CN117989761A
CN117989761A CN202410180779.3A CN202410180779A CN117989761A CN 117989761 A CN117989761 A CN 117989761A CN 202410180779 A CN202410180779 A CN 202410180779A CN 117989761 A CN117989761 A CN 117989761A
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CN
China
Prior art keywords
air curtain
fin
fin tube
curtain cabinet
condenser
Prior art date
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Pending
Application number
CN202410180779.3A
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Chinese (zh)
Inventor
马洪奎
鱼剑琳
陈俊儒
曲展鹏
晏刚
钱苏昕
任飞
薛学明
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Qingdao Hiron Commercial Cold Chain Co Ltd
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Qingdao Hiron Commercial Cold Chain Co Ltd
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Priority to CN202410180779.3A priority Critical patent/CN117989761A/en
Publication of CN117989761A publication Critical patent/CN117989761A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a composite finned tube condenser for an air curtain cabinet, a refrigerating system and the air curtain cabinet, and belongs to the technical field of refrigeration. The composite finned tube condenser comprises a plurality of finned tube groups and a water storage tank, wherein the plurality of finned tube groups are arranged side by side along the transverse direction, and the water storage tank is used for storing condensed water or defrosting water; the plurality of fin tube sets are sequentially connected in series, the plurality of fin tube sets at least comprise a first fin tube set and a second fin tube set, the first fin tube set adopts a first metal fin made of porous foam metal, and the second fin tube set adopts a second metal fin made of smooth metal; the water storage tank is positioned below the first fin tube group, and the lower ends of the first metal fins extend into condensed water or defrosting water stored in the water storage tank. The composite finned tube condenser for the air curtain cabinet can improve the heat dissipation effect outside the tube of the condenser for the commercial display air curtain cabinet, effectively utilize condensed water or defrosting water and reduce the discharge and waste of the condensed water or defrosting water.

Description

Composite finned tube condenser for air curtain cabinet, refrigerating system and air curtain cabinet
Technical Field
The invention belongs to the technical field of refrigeration, and particularly relates to a composite finned tube condenser for an air curtain cabinet, a refrigeration system and the air curtain cabinet.
Background
In commercial superproviders, air curtain cabinets with open front are often used to facilitate the display of merchandise. Because of the design of the front side opening, the refrigeration system of the traditional commercial super-display air curtain cabinet is high in energy consumption, and the commercial super-display air curtain cabinet is usually an aluminum finned tube condenser, ventilation cooling can be realized only, and the cooling efficiency is low, so that more condensed water or frosted water can be produced by the evaporator when the traditional commercial super-display air curtain cabinet operates. The existing treatment modes of condensed water or defrosting water mainly comprise two modes: one is led out directly through an external drain pipe, but condensed water or defrosting water of the drain pipe cannot be effectively utilized, so that resource waste is caused; the other is that a water receiving disc is adopted and heat dissipation of a compressor shell or an exhaust pipe is utilized for evaporation, but the evaporation capacity is limited, and condensed water or defrosting water cannot be effectively utilized.
In addition, in the refrigeration system of the existing commercial superdisplay air curtain cabinet, the refrigerant is converted into high-temperature steam for exhaust after passing through the compressor, and is sent into the inlet of the condenser through one pipeline, and is continuously cooled and condensed in the condenser along one pipeline or multiple pipelines until reaching the outlet of the condenser. However, as the condensed liquid of the refrigerant increases in a stepwise manner, the dryness of the two-phase refrigerant in the tube decreases, resulting in a decrease in condensing heat exchange efficiency.
Disclosure of Invention
The invention provides a composite finned tube condenser for an air curtain cabinet, a refrigerating system and the air curtain cabinet, which are used for at least improving the heat dissipation effect outside a tube of the condenser for the air curtain cabinet for super display, realizing the effective utilization of condensed water or defrosting water and reducing the discharge and waste of the condensed water or defrosting water.
The invention provides a composite finned tube condenser for an air curtain cabinet, comprising:
the plurality of fin tube groups are arranged side by side in the transverse direction and are sequentially connected in series, the plurality of fin tube groups at least comprise a first fin tube group and a second fin tube group, the first fin tube group adopts a first metal fin made of porous foam metal, and the second fin tube group adopts a second metal fin made of smooth metal;
the water storage tank is used for storing condensed water or defrosting water, is positioned below the first fin tube group, and the lower ends of the first metal fins extend into the condensed water or defrosting water stored in the water storage tank.
In some of these embodiments, the first fin group is disposed proximate to the windward heat radiating surface and the second fin group is disposed distal to the windward heat radiating surface.
In some of these embodiments, the first fin tube group is a plurality of, a plurality of first fin tube groups are disposed adjacently.
In some of these embodiments, the second fin tube group is plural, and the plural second fin tube groups are disposed adjacently.
In some of these embodiments, the first fin tube group includes:
a plurality of first metal fins arranged longitudinally;
the first straight pipes sequentially penetrate through the plurality of first metal fins along the longitudinal direction, and the first straight pipes are vertically arranged;
The first bent pipes are connected between two vertically adjacent first straight pipes, and are sequentially connected in series to form an S shape;
The second fin tube group includes:
A plurality of second metal fins arranged longitudinally;
The second straight pipes sequentially penetrate through the plurality of second metal fins along the longitudinal direction, and the plurality of second straight pipes are vertically arranged;
the second bent pipes are connected between two vertically adjacent second straight pipes, and are sequentially connected in series to form an S shape.
In some of these embodiments, the first metal fin is a porous copper foam material.
In some of these embodiments, the second metal fin is aluminum.
In some of these embodiments, each of the fin tube groups has a refrigerant inlet and a refrigerant outlet; in the two adjacent fin tube groups, the refrigerant outlet of one fin tube group is connected in series with the refrigerant inlet of the other fin tube group through connecting pipes, and at least one connecting pipe is provided with a refrigerant side inlet.
Further, the invention also provides a refrigerating system for the air curtain cabinet, which comprises a compressor, an evaporator, a capillary tube, a cooling fan and the composite finned tube condenser for the air curtain cabinet; the compressor, the composite finned tube condenser, the capillary tube and the evaporator are sequentially connected in series to form a circulating refrigeration loop, and a refrigerant bypass is further connected between the compressor and a refrigerant bypass inlet of the composite finned tube condenser; the cooling fan is arranged at one side of the composite finned tube condenser and is arranged near the first finned tube group of the composite finned tube condenser.
In some of these embodiments, a regenerator is provided between the capillary tube and a suction line between the compressor and the evaporator.
In addition, the invention also provides an air curtain cabinet, which adopts the refrigerating system for the air curtain cabinet.
Compared with the prior art, the invention has the advantages and positive effects that:
1. The invention provides a composite finned tube condenser for an air curtain cabinet, which is formed by compositing a first finned tube group and a second finned tube group, wherein the first finned tube group adopts a first metal fin made of porous foam metal, the second finned tube group adopts a second metal fin made of smooth metal, the lower end of the first metal fin stretches into condensed water or frosted water stored in a water storage tank, and as the porous foam metal has a plurality of micro-holes or nano-hole structures, the first metal fin has strong capillary water absorption characteristics, the condensed water or frosted water stored in the water storage tank can be transported on the first metal fin by utilizing capillary action, the evaporation area of moisture is enlarged, the evaporation of the moisture is enhanced, the condensation heat of a refrigerant in the finned tube group can be taken away by utilizing the evaporation of the moisture and the convection of air, the external heat dissipation effect of the whole condenser is obviously enhanced, and the performance of a refrigeration cycle system is improved;
2. the composite finned tube condenser for the air curtain cabinet provided by the invention has the advantages that the first finned tube group with the porous foam metal fins is utilized to realize the evaporation of condensed water or defrosting water, the effect of the evaporative condenser is achieved, the effective utilization of the condensed water or defrosting water is realized, the direct discharge of the condensed water or defrosting water is reduced, and the resource waste is avoided.
3. The refrigerating system for the air curtain cabinet provided by the invention adopts the composite finned tube condenser, so that the external heat dissipation effect of the whole condenser tube is obviously improved, the performance of the refrigerating circulation system is improved, the effective utilization of condensed water or defrosting water is realized, the direct discharge of the condensed water or defrosting water is reduced, and the resource waste is avoided
4. In the refrigerating system for the air curtain cabinet, the refrigerant of the compressor is sent into the composite finned tube condenser in two paths, so that the dryness of two-phase refrigerant in the tube is increased, the condensation heat exchange efficiency of the refrigerant is obviously improved, and the efficient energy-saving operation effect of the air curtain cabinet is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a perspective view of one embodiment of a composite finned tube condenser for an air curtain cabinet of the present invention;
FIG. 2 is a front view of one embodiment of a composite finned tube condenser for an air curtain cabinet of the present invention;
FIG. 3 is a top view of one embodiment of a composite finned tube condenser for an air curtain cabinet of the present invention;
FIG. 4 is a left side view of one embodiment of a composite finned tube condenser for an air curtain cabinet of the present invention;
FIG. 5 is a right side view of one embodiment of a composite finned tube condenser for an air curtain cabinet of the present invention;
fig. 6 is a schematic structural view of an embodiment of a refrigeration system for an air curtain cabinet according to the present invention.
In the figure:
1. a composite finned tube condenser; 2. a compressor; 3. an evaporator; 4. a capillary tube; 5. an air suction pipe; 6. a regenerator; 7. a cooling fan;
11. a first fin tube group; 111. a first metal fin; 112. a first straight tube; 113. a first elbow; 12. a second fin tube group; 121. a second metal fin; 122. a second straight tube; 123. a second elbow; 13. a water storage tank; 14. a connecting pipe;
a. A refrigerant inlet; b. a refrigerant outlet; c. a refrigerant bypass inlet; d. a refrigerant bypass.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it is to be understood that the term "longitudinal" refers to the left-right direction in fig. 2, "vertical" refers to the up-down direction in fig. 2, and "lateral" refers to the up-down direction in fig. 3; the terms "upper," "lower," "inner," "outer," and the like are used for convenience in describing and simplifying the description only, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 5, in an exemplary embodiment of the composite finned tube condenser 1 for an air curtain cabinet of the present invention, the composite finned tube condenser 1 for an air curtain cabinet comprises a plurality of fin tube groups arranged side by side in a lateral direction, and a water storage tank 13 for storing condensate or defrost water; the plurality of fin tube groups are sequentially connected in series, the plurality of fin tube groups at least comprise a first fin tube group 11 and a second fin tube group 12, the first fin tube group 11 adopts a first metal fin 111 made of porous foam metal, and the second fin tube group 12 adopts a second metal fin 121 made of smooth metal; the water storage tank 13 is positioned below the first fin tube group 11, and the lower ends of the first metal fins 111 extend into condensed water or defrosted water stored in the water storage tank 13. The porous foam metal material is a conventional material, for example, porous foam copper, and the porous structure of the porous foam metal material is not shown in fig. 1 to 5.
The composite finned tube condenser 1 for the air curtain cabinet is formed by compositing the first finned tube group 11 and the second finned tube group 12, wherein the first finned tube group 11 adopts the first metal fins 111 made of porous foam metal, the second finned tube group 12 adopts the second metal fins 121 made of smooth metal, the lower ends of the first metal fins 111 extend into condensed water or defrosting water stored in the water storage tank 13, and the porous foam metal has a plurality of micro-holes or nano-hole structures, so that the first metal fins 111 have strong capillary water absorption characteristics, the condensed water or defrosting water stored in the water storage tank 13 can be conveyed on the first metal fins 111 by utilizing capillary action, the evaporation area of moisture is enlarged, the evaporation of the moisture is enhanced, the condensation heat of the refrigerant in the finned tube groups can be taken away by utilizing the evaporation of the moisture and the convection of air, the external heat dissipation effect of the whole condenser tube is remarkably enhanced, and the performance of a refrigeration cycle system is improved. Meanwhile, the composite finned tube condenser 1 for the air curtain cabinet realizes the evaporation of condensed water or defrosting water by utilizing the first finned tube group 11 with the porous foam metal fins, plays a role of an evaporative condenser, realizes the effective utilization of the condensed water or defrosting water, reduces the direct discharge of the condensed water or defrosting water, and avoids the waste of resources.
In order to enhance the evaporation effect of the condensed water or the defrosting water, it is preferable that the first fin group 11 is disposed close to the windward heat radiating surface and the second fin group 12 is disposed away from the windward heat radiating surface.
The number of the first fin tube groups 11 may be plural, and the plural first fin tube groups 11 may be disposed adjacently. The second fin tube group 12 may be plural, and plural second fin tube groups 12 may be adjacently disposed. In the present embodiment, 1 first fin tube group 11 and 2 second fin tube groups 12 are employed in combination. It will be appreciated that a person skilled in the art can select an appropriate number of the first fin tube group 11 and the second fin tube group 12 to be composited according to the refrigeration requirement.
As shown in fig. 2 to 5, in the present embodiment, the first fin tube group 11 specifically includes a plurality of first metal fins 111, a plurality of first straight tubes 112, and a plurality of first bent tubes 113; a plurality of first metal fins 111 are arranged in the longitudinal direction; the first straight tubes 112 sequentially penetrate through the plurality of first metal fins 111 in the longitudinal direction, and the plurality of first straight tubes 112 are vertically arranged; the first bent pipes 113 are connected between two vertically adjacent first straight pipes 112, and the first bent pipes 113 sequentially connect the first straight pipes 112 in series to form an S shape; the second fin tube group 12 specifically includes a plurality of second metal fins 121, a plurality of second straight tubes 122, and a plurality of second bent tubes 123; a plurality of second metal fins 121 are arranged in the longitudinal direction; the second straight tubes 122 sequentially penetrate through the plurality of second metal fins 121 in the longitudinal direction, and the plurality of second straight tubes 122 are vertically arranged; the second bent pipes 123 are connected between two vertically adjacent second straight pipes 122, and the plurality of second bent pipes 123 sequentially connect the plurality of second straight pipes 122 in series to form an S-shape. The first fin tube group 11 and the second fin tube group 12 having the above-described structure are advantageous in improving the heat radiation effect outside the tube.
In order to improve the heat exchange effect of the condenser, it is preferable that the first metal fin 111 is made of porous foam copper and the second metal fin 121 is made of aluminum.
Further, as shown in fig. 1 to 5, each of the fin tube groups has a refrigerant inlet a and a refrigerant outlet b; in the adjacent two fin tube groups, the refrigerant outlet b of one fin tube group is connected in series with the refrigerant inlet a of the other fin tube group through the connection tubes 14, and at least one connection tube 14 is provided with a refrigerant side inlet c. The refrigerant can be led into the condenser in two parts through the refrigerant side inlet c, wherein one part of the refrigerant is led into the condenser from the refrigerant inlet a at the free end (the end which is not connected with the connecting pipe 14), the other part of the refrigerant is led into the condenser from the refrigerant side inlet c, the refrigerant which is led into the condenser through the refrigerant inlet a at the free end is cooled and condensed into two-phase refrigerant with smaller dryness, and the two-phase refrigerant is mixed with the refrigerant which is led into the condenser from the refrigerant side inlet c at the refrigerant side inlet c, so that the dryness of the mixed two-phase refrigerant is increased, and the condensation heat exchange efficiency of the refrigerant is remarkably improved.
The present invention also provides a refrigeration system for an air curtain cabinet, based on the above-mentioned composite finned tube condenser 1 for an air curtain cabinet, comprising a compressor 2, an evaporator 3, capillary tubes 4, a cooling fan 7 and the above-mentioned composite finned tube condenser 1 for an air curtain cabinet, as shown in fig. 6; the compressor 2, the composite finned tube condenser 1, the capillary tube 4 and the evaporator 3 are sequentially connected in series to form a circulating refrigeration loop, and a refrigerant bypass d is further connected between the compressor 2 and a refrigerant bypass inlet c of the composite finned tube condenser 1; the cooling fan 7 is for being located at one side of the complex fin tube condenser 1 and is disposed close to the first fin tube group 11 of the complex fin tube condenser 1. The refrigerating system for the air curtain cabinet adopts the composite finned tube condenser 1, so that the external heat dissipation effect of the whole condenser tube is remarkably improved, the performance of the refrigerating cycle system is improved, the effective utilization of condensed water or defrosting water is realized, the direct discharge of the condensed water or defrosting water is reduced, and the resource waste is avoided. Meanwhile, in the refrigerating system for the air curtain cabinet, the refrigerant of the compressor 2 is sent into the composite finned tube condenser 1 in two ways, so that the dryness of two-phase refrigerant in the tube is increased, the condensation heat exchange efficiency of the refrigerant is obviously improved, and the efficient energy-saving operation effect of the air curtain cabinet is improved.
Further, as shown in fig. 6, a regenerator 6 is provided between the capillary tube 4 and the suction pipe 5 located between the compressor 2 and the evaporator 3. Through the heat regenerator 6 that sets up, can realize the heat transfer between compressor 2 breathing pipe 5 and the capillary 4, effectively reduce the energy consumption loss of compressor 2. It should be noted that, the regenerator 6 used in the present embodiment is a capillary tube 4-suction tube 5 regenerator 6 that is conventional in the art, and the structure thereof is well known to those skilled in the art, and will not be described herein.
Based on the refrigerating system for the air curtain cabinet, the invention further provides the air curtain cabinet, and the refrigerating system for the air curtain cabinet is adopted.
Finally, it should be noted that: in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.

Claims (10)

1. A composite finned tube condenser for an air curtain cabinet comprising:
The fin tube sets are arranged side by side in the transverse direction, the fin tube sets are sequentially connected in series, the fin tube sets at least comprise a first fin tube set and a second fin tube set, the first fin tube set adopts a first metal fin made of porous foam metal, and the second fin tube set adopts a second metal fin made of smooth metal;
the water storage tank is used for storing condensed water or defrosting water, and is positioned below the first fin tube group, and the lower ends of the first metal fins extend into the condensed water or defrosting water stored in the water storage tank.
2. The composite finned tube condenser for an air curtain cabinet of claim 1, wherein the first fin tube set is disposed proximate to a windward heat dissipating surface and the second fin tube set is disposed distal to the windward heat dissipating surface.
3. The composite finned tube condenser for an air curtain cabinet of claim 2, wherein the first fin tube group is plural, and plural of the first fin tube groups are adjacently disposed.
4. The composite finned tube condenser for an air curtain cabinet of claim 2, wherein the second fin tube group is plural, and plural of the second fin tube groups are adjacently disposed.
5. The composite finned tube condenser for an air curtain cabinet of claim 1, wherein the first fin tube set comprises:
a plurality of first metal fins, wherein the plurality of first metal fins are longitudinally arranged;
The first straight pipes sequentially penetrate through the plurality of first metal fins along the longitudinal direction, and the plurality of first straight pipes are vertically arranged;
the first bent pipes are connected between two vertically adjacent first straight pipes, and the first bent pipes sequentially connect the first straight pipes in series to form an S shape;
The second fin tube group includes:
A plurality of second metal fins, wherein the second metal fins are longitudinally arranged;
the second straight pipes sequentially penetrate through the plurality of second metal fins along the longitudinal direction, and the plurality of second straight pipes are vertically arranged;
the second bent pipes are connected between two vertically adjacent second straight pipes, and are sequentially connected in series to form an S-shaped structure.
6. The composite finned tube condenser for an air curtain cabinet of claim 1, wherein the first metal fins are porous copper foam material and the second metal fins are aluminum material.
7. The composite finned tube condenser for an air curtain cabinet of any one of claims 1-6, wherein each of the finned tube groups has a refrigerant inlet and a refrigerant outlet; in the two adjacent fin tube groups, the refrigerant outlet of one fin tube group is connected with the refrigerant inlet of the other fin tube group in series through a connecting pipe, and at least one connecting pipe is provided with a refrigerant side inlet.
8. A refrigeration system for an air curtain cabinet comprising a compressor, an evaporator, capillaries and a cooling fan, further comprising a composite finned tube condenser for an air curtain cabinet as set forth in claim 7; the compressor, the composite finned tube condenser, the capillary tube and the evaporator are sequentially connected in series to form a circulating refrigeration loop, and a refrigerant bypass is further connected between the compressor and the refrigerant bypass inlet of the composite finned tube condenser; the cooling fan is arranged at one side of the composite fin tube condenser and is arranged close to the first fin tube group of the composite fin tube condenser.
9. A refrigeration system for an air curtain cabinet as recited in claim 8, wherein a regenerator is provided between said capillary tube and a suction duct located between said compressor and said evaporator.
10. An air curtain cabinet employing a refrigeration system for an air curtain cabinet as claimed in any one of claims 8 or 9.
CN202410180779.3A 2024-02-18 2024-02-18 Composite finned tube condenser for air curtain cabinet, refrigerating system and air curtain cabinet Pending CN117989761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410180779.3A CN117989761A (en) 2024-02-18 2024-02-18 Composite finned tube condenser for air curtain cabinet, refrigerating system and air curtain cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410180779.3A CN117989761A (en) 2024-02-18 2024-02-18 Composite finned tube condenser for air curtain cabinet, refrigerating system and air curtain cabinet

Publications (1)

Publication Number Publication Date
CN117989761A true CN117989761A (en) 2024-05-07

Family

ID=90893893

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202410180779.3A Pending CN117989761A (en) 2024-02-18 2024-02-18 Composite finned tube condenser for air curtain cabinet, refrigerating system and air curtain cabinet

Country Status (1)

Country Link
CN (1) CN117989761A (en)

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