CN111442668A - A-type heat exchanger with variable angle - Google Patents
A-type heat exchanger with variable angle Download PDFInfo
- Publication number
- CN111442668A CN111442668A CN202010414519.XA CN202010414519A CN111442668A CN 111442668 A CN111442668 A CN 111442668A CN 202010414519 A CN202010414519 A CN 202010414519A CN 111442668 A CN111442668 A CN 111442668A
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- China
- Prior art keywords
- heat exchanger
- angle
- variable
- connecting piece
- adjustable
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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- 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
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- 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
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
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- 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
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The invention discloses an A-shaped heat exchanger with a variable angle, which comprises a heat exchanger plate, a fan, an adjustable connecting piece and a rotatable connecting structure, wherein the heat exchanger plate is provided with a heat exchanger plate heat exchanger; one ends of the two heat exchanger plates are connected through a rotatable connecting structure and are arranged into an A-shaped structure, the middle parts of the two heat exchanger plates are connected through an adjustable connecting piece, the length of the adjustable connecting piece is adjustable, and the angle between the two heat exchanger plates is changed by adjusting the length of the adjustable connecting piece. According to the invention, the included angle between the heat exchanger plates is changed, so that the wind speed distribution of the windward side of the heat exchanger tends to be uniform, the problem of nonuniform heat exchange of the existing heat exchanger caused by nonuniform air flow organization is effectively solved, the integral heat exchange effect of the unit is improved, the operation efficiency of the unit is improved, and the heat exchanger has higher economic value and practicability.
Description
Technical Field
The invention relates to the technical field of heat exchangers, in particular to an angle-variable A-type heat exchanger.
Background
The finned tube heat exchanger is widely applied to various refrigeration systems because of good heat exchange performance, and in order to reduce the floor area of the finned tube heat exchanger, heat exchange plates are mostly arranged in an inclined mode and are symmetrically arranged in a V shape. However, the finned tube heat exchanger in this form is not perpendicular to the windward wind speed, so that the distribution of the air speed on the windward side of the heat exchanger is non-uniform, the non-uniform distribution of the wind speed can reduce the heat exchange performance of the heat exchanger, and the non-uniform distribution of the wind speed can cause the non-uniform distribution of the refrigerant flow on the refrigerant side, thereby causing the heat exchange performance of the heat exchanger to be remarkably reduced.
The air exchanges heat with the heat exchanger after flowing in, the side wall surface of the whole unit needs to be insulated, a large area of heat insulation material is needed, and the V-shaped heat exchanger needs more heat insulation material than the A-shaped heat exchanger.
Through changing the size of contained angle between the finned tube heat exchanger, can change the homogeneity that the wind speed distributes, nevertheless under the unchangeable condition of heat exchanger outer frame, will lead to the reduction of heat transfer board area, the heat transfer effect reduces on the contrary.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide an angle-variable A-type heat exchanger aiming at solving the problem that the heat exchange performance of the existing heat exchanger is influenced by the nonuniformity of airflow organization so as to improve the heat exchange performance.
The technical scheme is as follows: in order to achieve the purpose, the angle-variable A-type heat exchanger comprises a heat exchanger plate, a fan, an adjustable connecting piece and a rotatable connecting structure; one ends of the two heat exchanger plates are connected through the rotatable connecting structure and are arranged into an A-shaped structure, the middle parts of the two heat exchanger plates are connected through the adjustable connecting piece, the length of the adjustable connecting piece is adjustable, and the angle between the two heat exchanger plates is changed by adjusting the length of the adjustable connecting piece.
Furthermore, the two fans are arranged at the lower part of the opening of the A-shaped structure and are respectively positioned at the left side and the right side of the symmetry axis of the A-shaped heat exchanger.
Further, the heat exchanger is arranged on the support frame.
Furthermore, the heat exchanger adopts an internal thread copper pipe.
Furthermore, the heat exchanger is a finned tube heat exchanger, the heat exchanger fins are strip-seam windowing aluminum fins, the surfaces of the fins are provided with hydrophilic film coatings, the thickness of the fins is 0.115mm, and the fin pitch is 1.8 mm.
Furthermore, the adjustable connecting piece is provided with a structure for fixing the length of the adjustable connecting piece.
Further, the angle of the heat exchanger plate is determined by comparing the heat exchange effect, and the determination method comprises the following steps: through increasing certain number of degrees and after long when the operation is predetermine on the original angle of heat exchanger plate, compare the heat transfer effect, if the heat transfer effect is better, then continue to increase certain number of degrees, otherwise then reduce certain number of degrees, when heat transfer effect is stable after increasing or reducing the number of degrees, fixed angle.
Has the advantages that: compared with the prior art, the invention has the following advantages:
1. according to the invention, the heat exchanger plates are arranged in the A-type structure, the area of the area needing heat insulation is far smaller than that of the V-type heat exchanger, the use of heat insulation materials is reduced, and the production cost is saved.
2. The invention changes the included angle between the heat exchanger plates, compares the heat exchange effect of the heat exchanger, optimizes the angle under the condition of unchanging the external framework of the heat exchanger, achieves the optimal combination of the uniformity of the wind speed distribution and the heat exchange area, effectively solves the problem of uneven heat exchange of the existing heat exchanger caused by the nonuniformity of the airflow organization, ensures that the temperature of each refrigerant outlet pipeline is as uniform as possible under the premise of guaranteeing the unchanged outlet superheat degree and cost, improves the heat exchange effect of the whole unit, thereby improving the operation efficiency of the unit and having very high economic value and practicability.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In fig. 1: 1. a rotatable connection structure; 2. a heat exchanger plate; 3. an adjustable connector; 4. a fan.
Fig. 2 is a logic diagram of the angle optimization between the heat exchanger plates in the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be obtained by a person skilled in the art based on the embodiments of the present invention without any inventive step are within the scope of the present invention.
As shown in fig. 1, an angle-variable a-type heat exchanger disclosed in the embodiment of the present invention includes a heat exchanger plate 2, a fan 4, an adjustable connector 3, and a rotatable connection structure 1; one ends of the two heat exchanger plates 2 are connected through a rotatable connecting structure 1 and are arranged into an A-shaped structure with a certain angle, and the middle parts of the two heat exchanger plates are connected through an adjustable connecting piece 3. The length of the adjustable connecting piece 3 is adjustable, the angle between the two heat exchanger plates 2 is changed by adjusting the length of the adjustable connecting piece, and a structure for fixing the length of the adjustable connecting piece is arranged on the adjustable connecting piece.
In the embodiment of the invention, two fans 4 are arranged at the lower part of the opening of the A-shaped structure and are respectively positioned at the left side and the right side of the symmetry axis of the A-shaped heat exchanger. The heat exchanger is arranged on the support frame and adopts an internal thread copper pipe. The heat exchanger fin adopts a strip slit windowing aluminum fin, the surface of the fin is provided with a hydrophilic film coating, the thickness of the fin is 0.115mm, and the fin pitch is 1.8 mm.
In the embodiment of the invention, the heat exchanger plate 2 is arranged in an A-type structure, the area of the area needing heat insulation is far smaller than that of the V-type heat exchanger, the use of heat insulation materials is reduced, and the production cost is saved.
The angle formed by the two heat exchanger plates is determined by comparing the heat exchange effect, as shown in fig. 2, the heat exchange effect is compared for a logic diagram of angle optimization between the heat exchanger plates by increasing a certain degree on the original angle of the heat exchanger plates and allowing the preset time, if the heat exchange effect is better, the certain degree is continuously increased, otherwise, the certain degree is reduced, and finally, the optimal combination of the uniformity of wind speed distribution and the heat exchange area and the fixed angle are achieved.
The embodiment of the invention realizes the optimization of the included angle between the heat exchanger plates under the condition that the external frame of the heat exchanger is not changed, so that the wind speed distribution of the windward side of the heat exchanger tends to be uniform, the problem of nonuniform heat exchange of the conventional heat exchanger caused by nonuniform air flow organization is effectively solved, the heat exchange effect of the whole unit is improved, the operation efficiency of the unit is improved, and the heat exchanger has higher economic value and practicability.
Claims (8)
1. An A-type heat exchanger with a variable angle is characterized by comprising a heat exchanger plate (2), a fan (4), an adjustable connecting piece (3) and a rotatable connecting structure (1); one ends of the two heat exchanger plates (2) are connected through the rotatable connecting structure (1) and are arranged into an A-shaped structure, the middle parts of the two heat exchanger plates are connected through the adjustable connecting piece (3), the length of the adjustable connecting piece (3) is adjustable, and the angle between the two heat exchanger plates (2) is changed by adjusting the length of the adjustable connecting piece.
2. An angle-variable A-type heat exchanger according to claim 1, characterized in that the two fans (4) are arranged at the lower part of the opening of the A-shaped structure and are respectively positioned at the left side and the right side of the symmetry axis of the A-type heat exchanger.
3. An angle variable type a heat exchanger as claimed in claim 1, wherein the heat exchanger is provided on a support frame.
4. A variable angle a-type heat exchanger as claimed in claim 1, wherein said heat exchanger is of internally threaded copper tubing.
5. The variable-angle A-type heat exchanger according to claim 1, wherein the heat exchanger is a finned tube heat exchanger, the heat exchanger fins are slit windowed aluminum fins, the surfaces of the fins are provided with hydrophilic film coatings, the thickness of the fins is 0.115mm, and the distance between the fins is 1.8 mm.
6. An angle variable a-type heat exchanger according to claim 1 characterized in that the adjustable connector (3) is provided with means for fixing its length.
7. A variable angle a-type heat exchanger according to claim 1, characterized in that the angle of the heat exchanger plates (2) is determined by comparison of the heat exchange effect.
8. A variable angle type A heat exchanger according to claim 7 characterized in that the angle of the heat exchanger plates (2) is determined by: through increasing certain number of degrees and after long when the operation is predetermine on the original angle of heat exchanger plate, compare the heat transfer effect, if the heat transfer effect is better, then continue to increase certain number of degrees, otherwise then reduce certain number of degrees, when heat transfer effect is stable after increasing or reducing the number of degrees, fixed angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010414519.XA CN111442668A (en) | 2020-05-15 | 2020-05-15 | A-type heat exchanger with variable angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010414519.XA CN111442668A (en) | 2020-05-15 | 2020-05-15 | A-type heat exchanger with variable angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111442668A true CN111442668A (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010414519.XA Pending CN111442668A (en) | 2020-05-15 | 2020-05-15 | A-type heat exchanger with variable angle |
Country Status (1)
| Country | Link |
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| CN (1) | CN111442668A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577218A (en) * | 2020-12-24 | 2021-03-30 | 珠海格力电器股份有限公司 | Refrigerating unit for vehicle, control method of refrigerating unit and refrigerator car |
| CN112696734A (en) * | 2020-12-29 | 2021-04-23 | 珠海格力电器股份有限公司 | Control method and device of vertical air conditioner, processor and air conditioning system |
| CN117190743A (en) * | 2023-11-08 | 2023-12-08 | 中国核动力研究设计院 | Adjustable radiator and use method thereof |
-
2020
- 2020-05-15 CN CN202010414519.XA patent/CN111442668A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577218A (en) * | 2020-12-24 | 2021-03-30 | 珠海格力电器股份有限公司 | Refrigerating unit for vehicle, control method of refrigerating unit and refrigerator car |
| CN112696734A (en) * | 2020-12-29 | 2021-04-23 | 珠海格力电器股份有限公司 | Control method and device of vertical air conditioner, processor and air conditioning system |
| CN112696734B (en) * | 2020-12-29 | 2022-02-25 | 珠海格力电器股份有限公司 | Control method and device of vertical air conditioner, processor and air conditioning system |
| CN117190743A (en) * | 2023-11-08 | 2023-12-08 | 中国核动力研究设计院 | Adjustable radiator and use method thereof |
| CN117190743B (en) * | 2023-11-08 | 2024-01-23 | 中国核动力研究设计院 | Adjustable radiator and use method thereof |
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