CN112747503B

CN112747503B - Fin evaporator and production process thereof

Info

Publication number: CN112747503B
Application number: CN202011472085.5A
Authority: CN
Inventors: 唐勇
Original assignee: Zhenjiang Weisheng Electric Co ltd
Current assignee: Zhenjiang Weisheng Electric Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2022-12-23
Anticipated expiration: 2040-12-14
Also published as: CN112747503A

Abstract

The invention discloses a fin evaporator and a production process thereof, and the fin evaporator comprises a frame, wherein a coil pipe matched with the frame is arranged in the frame, a heat-shrinkable pipe matched with the coil pipe is arranged at one end of the coil pipe, a flared connecting pipe is arranged between the heat-shrinkable pipe and the coil pipe, a plurality of heat-dissipation sleeves matched with the coil pipe are sleeved on the outer wall of the coil pipe, a heat-conducting connecting sleeve is arranged between each heat-dissipation sleeve and the coil pipe, two sides of each heat-dissipation sleeve are fixedly connected with extending sleeves matched with the heat-dissipation sleeves, one side of each extending sleeve, which is far away from the heat-dissipation sleeves, is provided with a plurality of heat-dissipation extending pieces matched with the extending sleeves, a plurality of uniformly distributed fixed-section fixing pins are inserted in the heat-dissipation extending pieces, fins matched with the extending sleeves are sleeved outside the extending sleeves, and vibrating frame pieces matched with the heat-dissipation sleeves are symmetrically arranged between every two fins. The beneficial effects are that: during the whole use period of the equipment, the equipment can realize good adjustment between the fins, so that the equipment is more flexible and practical.

Description

Finned evaporator and production process thereof

Technical Field

The invention relates to the field of evaporators, in particular to a fin evaporator and a production process thereof.

Background

Evaporation is a physical process by which a liquid state is converted to a gaseous state. Generally, an evaporator is a device that converts a liquid substance into a gaseous substance. There are a large number of evaporators in the industry, of which the evaporator used in refrigeration systems is one. The evaporator is an important part in four major refrigeration parts, and low-temperature condensed liquid passes through the evaporator to exchange heat with external air, gasifies and absorbs heat, and achieves the refrigeration effect. The evaporator mainly comprises a heating chamber and an evaporation chamber. The heating chamber provides heat required by evaporation to the liquid to promote boiling and vaporization of the liquid; the evaporation chamber makes the gas phase and the liquid phase completely separated. The refrigerant exchanges heat with air, absorbs heat in the air, and changes the low-temperature low-pressure refrigerant liquid into low-temperature low-pressure gas (refrigerant vaporization). According to Chinese patent literature, a fin evaporator provided by CN111595070A improves the heat absorption effect of a refrigerant pipe, has high heat absorption efficiency, good air flow performance and large contact area, can better adapt to the change of the environment, has high defrosting efficiency and is not easy to be attached with garbage, but under the condition of long-term low-temperature use, the moisture on the surface can also generate frost under the condition of external connection environment or excessive heat exchange, after the frost is generated, the heat absorption efficiency is low if the frost is not cleaned in time, and because the fin structure of the conventional evaporator is also fixed, the conventional evaporator is difficult to adjust more, the deformation or damage of fins can be easily caused during installation and frost treatment, and the situation of time consumption and difficulty in cleaning can also occur if the conventional evaporator is defrosted only by manpower.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

The invention provides a fin evaporator and a production process thereof, aiming at the problems in the related art, so as to overcome the technical problems in the prior related art.

Therefore, the invention adopts the following specific technical scheme:

according to one aspect of the invention, the fin evaporator comprises a frame, a coil pipe matched with the frame is arranged inside the frame, a heat shrinkage pipe matched with the coil pipe is arranged at one end of the coil pipe, a flaring connection pipe is arranged between the heat shrinkage pipe and the coil pipe, a plurality of heat dissipation sleeves matched with the coil pipe are sleeved on the outer wall of the coil pipe, a heat conduction connection sleeve is arranged between each heat dissipation sleeve and the coil pipe, extension sleeves matched with the heat dissipation sleeves are fixedly connected to two sides of each heat dissipation sleeve, a plurality of heat dissipation extension pieces matched with the extension sleeves are arranged on one side, away from the heat dissipation sleeves, of each extension sleeve, a plurality of fixed-section fixing pins uniformly distributed are inserted into the heat dissipation extension pieces, fins matched with the extension sleeves are sleeved outside the extension sleeves, a vibration frame matched with the heat dissipation sleeves is symmetrically arranged between every two fins, a mounting groove is arranged in the middle of the top of the vibration frame, vibration motors matched with the fins are symmetrically arranged inside the vibration frame, and auxiliary fins matched with the fins are arranged on two sides of the bottom of the fins.

Further, the length of the extension sleeve is 1\2 of the length of the heat dissipation sleeve, and the gap between the extension sleeve and the coil pipe is equal to the thickness of the extension sleeve.

Furthermore, the thickness of the heat dissipation extension sheet is 1\2 of the extension sleeve, the number of the heat dissipation extension sheets is 3, and the heat dissipation extension sheets are annularly and equidistantly distributed on one side of the extension sleeve.

Furthermore, a heating wire matched with the coil pipe is arranged inside the frame, and a power supply matched with the heating wire is arranged at one end of the heating wire.

Furthermore, the surfaces of the fins and the auxiliary fins are coated with hydrophilic films matched with the fins.

Furthermore, the outer wall cover of frame is equipped with rather than matched with ventilation frame, one side of ventilation frame is equipped with rather than matched with compression fan.

Furthermore, the ventilation frame is the rectangle structure, just the lateral wall cross-section of ventilation frame is for having 30 inclination's wing structure, one side of ventilation frame is equipped with rather than matched with air outlet.

Furthermore, the bottom end of one side, far away from the fins, of the auxiliary fin is provided with a heat conduction connecting sheet matched with the coil pipe, and the middle position inside the auxiliary fin is symmetrically connected with a heat dissipation function spring.

Furthermore, a heat conduction mounting ring is arranged between the fin and the extension sleeve, and a plurality of friction grooves which are uniformly distributed are formed in the outer wall of the heat conduction mounting ring.

According to another aspect of the present invention, there is provided a production process of a fin evaporator, comprising the steps of:

cutting and punching the sheet aluminum material through a punch press to form fins;

the fins are sequentially arranged and then pass through the through holes in the fins by utilizing the aluminum evaporation tubes, and the fins are fixed on the aluminum evaporation tubes in a tube expansion mode

Processing the aluminum evaporation tube with fins into a serpentine fin evaporator with an inlet and outlet loop;

filling nitrogen of 0.3-0.8Mpa into openings at two ends of the loop of the evaporation tube, and sealing the two ends of the loop;

placing the evaporator aluminum pipe in an aluminic acid cleaning solution for cleaning, cleaning oil stains and impurities on the surface, and passivating the surface of the evaporator to form a protective film;

cutting and polishing the aluminum plate, and covering a vulcanized film on the surface of the aluminum plate;

welding an evaporator aluminum pipe and an aluminum plate for quality inspection, and bonding the evaporator aluminum pipe and the aluminum plate by melting a vulcanized film by using a vulcanizing machine;

after the two are connected, cold rolling and annealing are carried out on the aluminum plate, and blow molding is carried out on the aluminum plate;

the airtightness of the evaporator is checked again in the same manner as the primary leak detection;

and (5) finishing the shape of the evaporator.

The beneficial effects of the invention are as follows: during the whole use of equipment, adjustment between the fine fin can be realized to equipment to make the fin can be different from conventional condenser structure, can have skew compensation, easy to assemble that can be fine, and through shaking the structure, prevent to condense frost between the fin and freeze the problem that causes the operating efficiency low, thereby make equipment nimble more and practical.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is one of schematic structural views of a fin evaporator and a process for producing the same according to an embodiment of the present invention;

FIG. 2 is a second schematic structural diagram of a fin evaporator and a manufacturing process thereof according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a thermally conductive mounting ring of a fin evaporator and process for producing the same according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a fin evaporator and a fin produced by the process according to an embodiment of the present invention;

FIG. 5 is a flow chart of steps in a fin evaporator and process for producing the same according to an embodiment of the present invention.

In the figure:

1. a frame; 2. a coil pipe; 3. heat shrink tubing; 4. flaring and connecting pipes; 5. a heat dissipation sleeve; 6. a heat conduction connecting sleeve; 7. an extension sleeve; 8. a heat dissipating extension sheet; 9. fixing pins for fixing the sections; 10. a fin; 11. a vibration frame; 12. mounting grooves; 13. a vibration motor; 14. auxiliary fins; 15. heating wires; 16. a power source; 17. a hydrophilic membrane; 18. a ventilation frame; 19. a compression fan; 20. an air outlet; 21. a heat conducting connecting sheet; 22. a heat dissipation function spring; 23. a thermally conductive mounting ring; 24. a friction groove.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

According to an embodiment of the present invention, there is provided a fin evaporator and a production process thereof.

As shown in fig. 1 to 5, the fin evaporator according to the embodiment of the present invention includes a frame 1, a coil 2 matched with the frame 1 is disposed inside the frame 1, a heat shrinkable tube 3 matched with the coil 2 is disposed at one end of the coil 2, a flared connection tube 4 is disposed between the heat shrinkable tube 3 and the coil 2, a plurality of heat dissipation sleeves 5 matched with the coil 2 are sleeved on an outer wall of the coil 2, a heat conduction connection sleeve 6 is disposed between the heat dissipation sleeves 5 and the coil 2, extension sleeves 7 matched with the heat dissipation sleeves 5 are fixedly connected to both sides of the heat dissipation sleeves 5, a plurality of heat dissipation extension pieces 8 matched with the extension sleeves 5 are disposed on one side of the extension sleeves 7 away from the heat dissipation sleeves 5, a plurality of uniformly distributed fixed-section fixing pins 9 are inserted into the heat dissipation extension pieces 8, fins 10 matched with the extension sleeves 7 are sleeved outside, a vibration motor 13 matched with the fins 10 is symmetrically disposed between every two fins 10, a mounting groove 12 is disposed in a middle position of a top of the vibration frame 11, and a vibration motor 13 matched with two fins 14 are symmetrically disposed inside the vibration frame 11.

In one embodiment, the length of the extension sleeve 7 is 1\2 of the length of the heat sink sleeve 5, and the gap between the extension sleeve 7 and the coil 2 is equivalent to the thickness of the extension sleeve 7.

In one embodiment, the thickness of the heat dissipation extension fins 8 is 1\2 of the extension sleeve 7, the number of the heat dissipation extension fins 8 is 3, and the heat dissipation extension fins are annularly and equidistantly distributed on one side of the extension sleeve 7.

In one embodiment, the frame 1 is provided with a heating wire 15 inside, which is matched with the coil 2, and one end of the heating wire 15 is provided with a power supply 16 matched with the heating wire.

In one embodiment, the surfaces of the fins 10 and the auxiliary fins 14 are coated with a hydrophilic film 17 in cooperation therewith.

In one embodiment, the outer wall of the frame 1 is sleeved with a ventilation frame 18 matched with the frame, and one side of the ventilation frame 18 is provided with a compression fan 19 matched with the ventilation frame.

In one embodiment, the ventilation frame 18 is a rectangular structure, the cross section of the side wall of the ventilation frame 18 is a wing structure with an inclination angle of 30 °, and one side of the ventilation frame 18 is provided with an air outlet 20 matched with the ventilation frame.

In one embodiment, the bottom end of one side of the auxiliary fin 14 away from the fin 10 is provided with a heat conducting connecting sheet 21 matched with the coil 2, and a heat dissipation function spring 22 is symmetrically connected to the middle position inside the auxiliary fin 14.

In one embodiment, a heat-conducting mounting ring 23 is arranged between the fins 10 and the extension sleeve 7, and the outer wall of the heat-conducting mounting ring 23 is provided with a plurality of uniformly distributed friction grooves 24.

According to an embodiment of the present invention, there is also provided a production process of a fin evaporator, including the steps of:

step S101: cutting and punching the sheet aluminum material by a punch press to form the fin 10;

step S103: arranging the fins 10 in sequence, then penetrating the aluminum evaporation tubes through holes in the fins 10, and fixing the fins 10 on the aluminum evaporation tubes in a tube expansion mode;

step S105: processing an aluminum evaporation tube with fins 10 into a serpentine fin 10 type evaporator with an inlet and outlet loop;

step S107: filling nitrogen of 0.3-0.8Mpa into openings at two ends of the evaporating pipe loop, sealing two ends of the loop, and detecting air tightness by observing pressure change;

step S109: placing the evaporator aluminum pipe in an aluminic acid cleaning solution for cleaning, cleaning oil stains and impurities on the surface, and passivating the surface of the evaporator to form a protective film;

step S111: cutting and polishing the aluminum plate, and covering a vulcanized film on the surface of the aluminum plate;

step S113: welding an evaporator aluminum pipe and an aluminum plate for quality inspection, and bonding the evaporator aluminum pipe and the aluminum plate by melting a vulcanized film by using a vulcanizing machine;

step S115: after the two are connected, cold rolling and annealing are carried out on the aluminum plate, and blow molding is carried out on the aluminum plate;

step S117: the air tightness of the evaporator is checked again in the same way as the primary leak detection;

step S119: and (5) finishing the shape of the evaporator.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In practical application, a vibration frame 11 attached to the fins 10 and the auxiliary fins 14 is arranged between every two fins 10, the vibration frame 11 is internally provided with vibration motors 13 which are symmetrically arranged, when in use, frost is defrosted on the surfaces of every two fins 10 and the auxiliary fins 14, even water is frozen between every two fins, the vibration motors 13 are started, the frost is shattered by high-frequency vibration of the vibration motors 13, and because the fixed connection points of the fins 10 and the auxiliary fins 14 are arranged at the extension sleeve 7, the extension sleeve 7 and the coil 2 have enough clearance, when vibration occurs, an angle deviation of 5-10 degrees and vibration compensation are allowed to be generated, so that the fins 10 and the auxiliary fins 14 generate vibration, but the coil 2 cannot be damaged by excessive vibration, in addition, the compensation clearance of the extension sleeve 7, but also supplementary installation and regulation and control, the angle skew that utilizes to allow can be fine installs, and can carry out angle adjustment with every two sets of fins 10, and utilize the heat dissipation to extend piece 8 and carry out the fixed and support after adjusting, so alright make fin 10 form trapezoidal combination, slope combination or other profitable combination collocation, and the fin 10 that the product combination was collocated cooperates the vibrations effect of shock motor 13, can produce better result of use, simultaneously, heat dissipation function spring 22 can provide the buffer power for between the structure, strengthen the thermal diffusivity of supplementary fin 14 and control the interval and the service interval between two liang of installations, and after putting into service, fin 10 and supplementary fin 14 mutual installation can not influence excessively, and can increase enough big radiating area.

In summary, according to the technical scheme of the invention, during the whole using period of the equipment, the equipment can realize good adjustment among the fins, the fins can be different from a conventional condenser structure, offset compensation can be realized, the installation can be well and conveniently realized, and the problem of low operating efficiency caused by frost condensation among the fins is prevented through the vibration structure, so that the equipment is more flexible and practical.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The finned evaporator is characterized by comprising a frame (1), wherein a coil (2) matched with the frame (1) is arranged in the frame (1), a heat-shrinkable tube (3) matched with the coil (2) is arranged at one end of the coil (2), a flaring connecting tube (4) is arranged between the heat-shrinkable tube (3) and the coil (2), a plurality of heat-dissipating sleeves (5) matched with the heat-dissipating sleeves are sleeved on the outer wall of the coil (2), a heat-conducting connecting sleeve (6) is arranged between each heat-dissipating sleeve (5) and the corresponding coil (2), extending sleeves (7) matched with the heat-dissipating sleeves are fixedly connected at two sides of each heat-dissipating sleeve (5), a plurality of heat-dissipating extending pieces (8) matched with the extending sleeves are arranged at one side of each extending sleeve (7), a plurality of uniformly-distributed fixed section fixing pins (9) are inserted in the heat-dissipating extending pieces (8), fins (10) matched with the extending sleeves (7) are sleeved on the extending sleeves, vibration frames (11) matched with the heat-dissipating sleeves (5) are symmetrically arranged between every two fins (10), vibration frames (12) are symmetrically arranged at the middle positions of the middle parts of the vibration fins (11) and vibration fins (12) and vibration fins (14) matched with auxiliary fin frames (10) are arranged at two sides of the vibration fins, the length of extending cover (7) is for the 1\2 of heat dissipation cover (5) length, just extend cover (7) with clearance between coil pipe (2) is equivalent to extend the thickness of cover (7), the thickness of heat dissipation extension piece (8) does extend 1\2 of cover (7), the quantity of heat dissipation extension piece (8) is 3, and annular equidistance distributes and extend one side of cover (7), the inside of frame (1) is equipped with coil pipe (2) matched with heater strip (15), the one end of heater strip (15) is equipped with rather than matched with power (16), fin (10) with the surface of supplementary fin (14) all coats and is covered with rather than matched with hydrophilic membrane (17), the outer wall of frame (1) rather than matched with ventilation frame (18), one side of ventilation frame (18) is equipped with rather than matched with compression fan (19), ventilation frame (18) is the rectangle structure, just the lateral wall of ventilation frame (18) is equipped with heat dissipation fin (18) and heat conduction fin (20) is equipped with the heat dissipation fin (14) and heat conduction fin (14) one side of the heat dissipation fin (14), the heat dissipation fin (18) is equipped with the heat conduction fin (14) and heat conduction fin (20) of the heat conduction fin (14) of the middle of air outlet of air, the fin (10) with extend and be equipped with heat conduction collar (23) between cover (7), the outer wall of heat conduction collar (23) is equipped with a plurality of evenly distributed's friction groove (24).

2. A finned evaporator and a production process thereof, characterized in that the production process for the finned evaporator described in claim 1 comprises the steps of:

cutting and punching the sheet aluminum material through a punch press to form a fin (10);

sequentially arranging the fins (10), then penetrating the aluminum evaporation tubes through holes in the fins (10), and fixing the fins (10) on the aluminum evaporation tubes in a tube expansion mode;

processing an aluminum evaporation tube with fins (10) into a serpentine fin (10) type evaporator with an inlet and outlet loop;

filling nitrogen of 0.3-0.8Mpa into openings at two ends of the evaporating pipe loop, and sealing two ends of the loop;

the air tightness of the evaporator is checked again in the same way as the primary leak detection;

and (5) finishing the shape of the evaporator.