CN205448411U

CN205448411U - Add hot type heat exchanger

Info

Publication number: CN205448411U
Application number: CN201620016586.5U
Authority: CN
Inventors: 张天泓; 徐占松
Original assignee: Zhejiang Tongxing Refrigecation Coltd
Current assignee: Zhejiang star Polytron Technologies Inc
Priority date: 2016-01-08
Filing date: 2016-01-08
Publication date: 2016-08-10
Anticipated expiration: 2026-01-08

Abstract

The utility model discloses an add hot type heat exchanger, including flat pipe, flat pipe includes a plurality of horizontal parts, and the centre gripping has a radiating fin between two adjacent horizontal parts, have the heating through -hole of middle part opening and middle part opening both sides in the flat pipe, the equal shaping in both sides at the both ends of horizontal part has the fluting, and the both ends and the fluting that corresponds of the heating through -hole of horizontal part communicate with each other, and electric heating wire stretches into in the heating through -hole. It will set up electric heating wire at flat intraduct for it is synthetic integrative with the heat exchanger, thereby significantly reduces the taking of space, and electric heating wire direct heat transfer gives flat pipe in addition, thereby the normal operating of heat exchanger is guaranteed to quick realizationizations frost, and simultaneously, the ventilation hole that has on its radiating fin can make radiating fin be difficult for frosting, also reduces the white time of follow -upization, the white effect of improvementization.

Description

A kind of heated type heat exchanger

Technical field:

This utility model relates to heat exchange equipment technical field, a kind of heated type heat exchanger.

Background technology:

Heat exchanger is parts critically important in refrigeration plant, and it uses as vaporizer or condenser.In existing refrigerator using heat exchanger as vaporizer in use, its outer wall can produce the problems such as frosting, of long duration, the outer wall of vaporizer can amass full frost etc., thus reduce the volume of interior refrigerator space, simultaneously, also can affect the heat exchange of vaporizer, and reduce the service life of refrigerator, now, it is accomplished by carrying out defrost, existing defrost mode is, heater is installed in the adjacent position of vaporizer, after heating devices heat, by air heat transfer and thermal-radiating mode, make to be heated outside vaporizer, thus carry out defrost, its defrost effect is limited, and heater is necessarily mounted at heat exchanger adjacent regions, it takes up room greatly, and design trouble.

Utility model content:

The purpose of this utility model is to overcome the deficiencies in the prior art, thering is provided a kind of heated type heat exchanger, it will arrange electrical heating wire inside flat tube so that itself and heat exchanger integrator, thus greatly reduce taking of space, and electrical heating wire direct heat transfer is to flat tube, thus quickly realize defrost, it is ensured that heat exchanger properly functioning, simultaneously, the air vent having on its radiating fin can make radiating fin be difficult to frosting, also reduces the time of follow-up defrost, improves defrost effect.

This utility model solves the scheme of described technical problem:

A kind of heated type heat exchanger, including flat tube, described flat tube includes multiple horizontal part, it is clamped with radiating fin between adjacent two horizontal parts, described flat tube has middle part opening and opening both sides, middle part add heat through-hole, the both sides at the two ends of horizontal part all form fluting, and the two ends adding heat through-hole of horizontal part communicate with corresponding fluting, and electrical heating wire stretches into and adds in heat through-hole.

One end of described flat tube connects feed tube, and the other end of flat tube connects drain pipe.

Described radiating fin is ripple bending-like.

Described radiating fin trapezoidal ripple bending-like, it includes multiple trapezoidal portion, having horizontal bending part between adjacent two trapezoidal portions, and described trapezoidal portion includes two oblique plate bodys, there is between the top of two oblique plate bodys top connecting portion, there is at the two ends of oblique plate body multiple air vent.

The two ends adding heat through-hole of described horizontal part are respectively and fixedly provided with block, and adding between two blocks is inserted with electrical heating wire in heat through-hole, and one of them block is stretched out in the electrical heating wire wiring that the end of electrical heating wire is fixed with, and adds and is also filled with magnesia powder in heat through-hole.

The S-shaped coiling of described flat tube, has U-shaped bending part between its adjacent two horizontal parts.

Described radiating fin is weldingly fixed on horizontal part.

The lower section of the top of the horizontal part of the topmost of described flat tube and the horizontal part of foot is equipped with protection board, is clamped with radiating fin between protection board and corresponding horizontal part, and radiating fin is weldingly fixed on protection board and the horizontal part of correspondence.

The left and right sides of flat tube is all stretched out in the both sides of described radiating fin, has multiple air vent at the part of the left and right sides that the oblique plate body of radiating fin stretches out flat tube.

Prominent effect of the present utility model is:

Compared with prior art, it will arrange electrical heating wire inside flat tube, make itself and heat exchanger integrator, thus greatly reduce taking of space, and electrical heating wire direct heat transfer is to flat tube, thus quickly realize defrost, ensureing the properly functioning of heat exchanger, meanwhile, the air vent that its radiating fin has can make radiating fin be difficult to frosting, also reduce the time of follow-up defrost, improve defrost effect.

Accompanying drawing illustrates:

Fig. 1 is structural representation of the present utility model；

Fig. 2 is side view of the present utility model；

Fig. 3 is partial structurtes schematic diagram of the present utility model；

Fig. 4 is the partial sectional view of flat tube；

Fig. 5 is the partial structurtes schematic diagram of radiating fin.

Detailed description of the invention:

Embodiment, see as shown in Figures 1 to 5, a kind of heated type heat exchanger, including flat tube 10, described flat tube 10 includes multiple horizontal part 11, is clamped with radiating fin 20 between adjacent two horizontal parts 11, described flat tube 10 has middle part opening 12 and middle part opening 12 both sides add heat through-hole 13, the both sides at the two ends of horizontal part 11 all form fluting 14, and the two ends adding heat through-hole 13 of horizontal part 11 communicate with corresponding fluting 14, and electrical heating wire 3 stretches into and adds in heat through-hole 13.

Further, one end of described flat tube 10 connects feed tube 1, and the other end of flat tube 10 connects drain pipe 2.

Further, described radiating fin 20 is in ripple bending-like.

Further, described radiating fin 20 trapezoidal ripple bending-like, it includes multiple trapezoidal portion 21, between adjacent two trapezoidal portions 21, there is horizontal bending part 22, described trapezoidal portion 21 includes two oblique plate bodys 23, there is between the top of two oblique plate bodys 23 top connecting portion 24, there is at the two ends of oblique plate body 23 multiple air vent 25.

Further, the two ends adding heat through-hole 13 of described horizontal part 11 are respectively and fixedly provided with block, adding between two blocks, is inserted with electrical heating wire 3 in heat through-hole 13, one of them block is stretched out in the electrical heating wire wiring 31 that the end of electrical heating wire 3 is fixed with, and adds and is also filled with magnesia powder 32 or other insulant in heat through-hole 13.

Further, the described S-shaped coiling of flat tube 10, between its adjacent two horizontal parts 11, there is U-shaped bending part 12.

Further, described radiating fin 20 is weldingly fixed on horizontal part 11.

Further; the lower section of the top of the horizontal part 11 of the topmost of described flat tube 10 and the horizontal part 11 of foot is equipped with protection board 4; being clamped with radiating fin 20 between protection board 4 and corresponding horizontal part 11, radiating fin 20 is weldingly fixed on protection board 4 and the horizontal part 11 of correspondence.

Further, the left and right sides (can also partly stretch out or not stretch out the left and right sides of flat tube 10) of flat tube 10 is all stretched out in the both sides of described radiating fin 20, has multiple air vent 25 at the part of the left and right sides that the oblique plate body 23 of radiating fin 20 stretches out flat tube 10.

In use, use when normal, refrigeration working medium is entered by feed tube 1, flat tube 10 absorbs heat after flowing, thus externally lower the temperature, then refrigeration working medium is discharged from drain pipe 2, and owing to all stretching out the both sides of flat tube 10 in the two ends of radiating fin 20, and there is at two ends air vent 25, so that be not easy frosting at air vent 25, so that heat exchanger is not easy frosting, and after long between when deployed, after heat exchanger outer wall frosting, heated by a heater strip 3, flat tube 10 is thus made directly to be heated, transfer heat on radiating fin 20 again, thus outside frost is melted, its thawing is effective.

And the lower section of the horizontal part 11 of the top of the horizontal part 11 of the topmost of flat tube 10 and foot is equipped with protection board 4; radiating fin 20 it is clamped with between protection board 4 and corresponding horizontal part 11; radiating fin 20 is weldingly fixed on protection board 4 and the horizontal part 11 of correspondence; protection board 4 primarily serves protective effect, and its protected effect is good.

Finally; embodiment of above is merely to illustrate this utility model; and be not limitation of the utility model; those of ordinary skill about technical field; in the case of without departing from spirit and scope of the present utility model; can also make a variety of changes and modification, the technical scheme of the most all equivalents falls within category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.

Claims

1. a heated type heat exchanger, including flat tube (10), it is characterized in that: described flat tube (10) includes multiple horizontal part (11), it is clamped with radiating fin (20) between adjacent two horizontal parts (11), described flat tube (10) has middle part opening (12) and middle part opening (12) both sides add heat through-hole (13), the both sides at the two ends of horizontal part (11) all form fluting (14), the two ends adding heat through-hole (13) of horizontal part (11) communicate with corresponding fluting (14), electrical heating wire (3) stretches into and adds in heat through-hole (13).

A kind of heated type heat exchanger the most according to claim 1, it is characterised in that: one end of described flat tube (10) connects feed tube (1), and the other end of flat tube (10) connects drain pipe (2).

A kind of heated type heat exchanger the most according to claim 1, it is characterised in that: described radiating fin (20) is in ripple bending-like.

A kind of heated type heat exchanger the most according to claim 3, it is characterized in that: described radiating fin (20) trapezoidal ripple bending-like, it includes multiple trapezoidal portion (21), between adjacent two trapezoidal portions (21), there is horizontal bending part (22), described trapezoidal portion (21) includes two oblique plate bodys (23), there is between the top of two oblique plate bodys (23) top connecting portion (24), there is at the two ends of oblique plate body (23) multiple air vent (25).

A kind of heated type heat exchanger the most according to claim 1, it is characterized in that: the two ends adding heat through-hole (13) of described horizontal part (11) are respectively and fixedly provided with block, adding between two blocks, is inserted with electrical heating wire (3) in heat through-hole (13), one of them block is stretched out in the electrical heating wire wiring (31) that the end of electrical heating wire (3) is fixed with, and adds and is also filled with magnesia powder (32) in heat through-hole (13).

A kind of heated type heat exchanger the most according to claim 1, it is characterised in that: described flat tube (10) S-shaped coiling, between its adjacent two horizontal parts (11), there is U-shaped bending part (12).

A kind of heated type heat exchanger the most according to claim 1, it is characterised in that: described radiating fin (20) is weldingly fixed on horizontal part (11).

A kind of heated type heat exchanger the most according to claim 6; it is characterized in that: the lower section of the top of the horizontal part (11) of the topmost of described flat tube (10) and the horizontal part (11) of foot is equipped with protection board (4); being clamped with radiating fin (20) between protection board (4) and corresponding horizontal part (11), radiating fin (20) is weldingly fixed on protection board (4) and the horizontal part (11) of correspondence.

A kind of heated type heat exchanger the most according to claim 4, it is characterized in that: the left and right sides of flat tube (10) is all stretched out in the both sides of described radiating fin (20), at the part of the left and right sides that the oblique plate body (23) of radiating fin (20) stretches out flat tube (10), there is multiple air vent (25).