CN201229133Y

CN201229133Y - Plate-fin heat exchanger

Info

Publication number: CN201229133Y
Application number: CNU2007201287339U
Authority: CN
Inventors: 郭勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-02
Filing date: 2007-08-02
Publication date: 2009-04-29
Anticipated expiration: 2017-08-02

Abstract

The utility model relates to a fin type heat exchanger, which comprises a heat transfer plate bundle formed by plurality of heat exchange plates (4) arrayed in parallel, fins (2) welded on the heat exchange plates, lateral boards (3) for connecting and fixing the plates, lateral bobbin carriages (5,6,9,10), an outer cover board (1) and joint pipes (7,8,11,12). Compared with the prior art, the utility model has the advantages of simple structure and low manufacture cost.

Description

Plate-fin heat exchanger

Affiliated technical field

The utility model relates to a kind of plate-fin heat exchanger, especially a kind of fin and the welding method of heat exchange plate and building material of fin and heat exchange plate that is used for plate-fin heat exchanger.

Background technology

Plate-fin heat exchanger is a kind of efficient recuperative heat exchanger device.It is characterized in that in each fluid passage of heat exchanger, making highdensity heat exchange fin is welded between the two adjacent heat exchange plates, so that increase substantially heat transfer area.Thereby the size that improves heat transfer efficiency and reduce heat exchanger.Its manufacturing process is to use high temperature brazing that fin and heat exchange plate are linked together.Cold and hot two kinds of fluids flow through in the heat exchange plate both sides respectively, thereby carry out heat transfer operations.Plate-fin heat exchanger is substantially by forming with the lower part:

1. heat exchange plate, cold and hot two kinds of fluids carry out heat exchange in two side flow of heat exchanger plates through heat exchange plate.

2. fin, fin is welded between two heat exchange plates.

3. side plate is used for fluid-encapsulated.

4. fluid connects bobbin carriage and adapter.

The heat exchange fin that uses is that soldering is on heat exchange fin at present.Soldering is carried out in soldering oven.Under high temperature and vacuum condition, brazing material is melted, by the pressure that adds fin and heat exchange plate are linked together then.The soldering plate-fin heat exchanger has following deficiency:

1. welding procedure complexity all has strict requirement to temperature, vacuum, brazing material and the pressure that adds in the brazing process.

2. be subjected to the restriction of soldering oven, it is very big that the size of heat exchanger can not be done.

3. manufacturing cost height.

4. be subjected to the restriction of brazing material, the serviceability temperature of heat exchanger can not be too high.Can only be used for the low-temperature operation operating mode.

Summary of the invention

In order to overcome the deficiency of existing plate-fin heat exchanger, the utility model provides a kind of novel heat-transfer equipment.The high heat transfer efficient that has promptly kept plate-fin heat exchanger can reduce manufacturing cost simultaneously significantly.

The utility model is by the following technical solutions:

Use electric resistance welding that fin is welded on the heat exchange plate.And then method routinely is assembled into plate-fin heat exchanger to the heat exchange plate that has fin.The form of fin can be a U type fin (Fig. 2), or square wave type fin (Fig. 3), also can be other form and the fin structure that is applicable to electric resistance welding.

The beneficial effects of the utility model are by employing the utility model heat exchanger plates and fin type of attachment thereof, can reach following effect in making and using:

1. make simple.Simple stamping machine can be produced fin.Use common resistance welder closely to be attached to fin on the heat exchanger plates then.The bond strength height.

2. the size of heat exchanger is not subjected to the restriction of soldering stove size.Use continuous resistance welder, the length of heat exchange plate and width only are subjected to the restriction of material plate size.

3. be applicable to the high fluid temperature.Heat exchanger can be under very high temperature long-play.

4. for the slight occasion of corrosion, can use the carbon steel thin plate manufacturing.Greatly reduce material cost.Can also adopt the zinc-plated or carbon steel sheet of aluminizing where necessary, thereby have corrosion-resistant simultaneously and the low advantage of cost.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described further.In accompanying drawing 2, piece number 1 is a balustrade deching, and piece number 2 is fins, piece number 3 is side seal plates, piece number 4 is heat exchange plates, and piece number 5 is inlet bobbin carriages of fluid 1, and piece number 6 is outlet bobbin carriages of fluid 1, piece number 7 is import interfaces of fluid 1, piece number 8 is discharge couplings of fluid 1, and piece number 9 is inlet bobbin carriages of fluid 2, and piece number 10 is outlet bobbin carriages of fluid 2, piece number 11 is import interfaces of fluid 2, and piece number 12 is discharge couplings of fluid 2.

Fig. 1 is the dimension sketch of the utility model heat exchanger.

Fig. 2 is the 3-D view that the utility model heat exchanger runner is arranged.

Fig. 3 is the viewgraph of cross-section of the utility model heat exchanger.Both sides at each heat exchange plate are welded on fin on the heat exchange plate by electric resistance welding.The size of fin and the spacing of heat exchange plate are determined according to the heat transfer needs.

Fig. 4 is an elevational view, shows the flow pattern of fluid 1.

Fig. 5 is an elevational view, shows the flow pattern of fluid 2.

The utility model heat exchanger is by heat exchange plate, fin, side seal plate and import and export Bobbin carriage forms. On the heat exchange plate with fin; Fin is connected to heat exchange plate by electric resistance welding; The height of fin can touch adjacent plate, does thereby adjacent plate is played support With; Two kinds of fluid side can be used fin simultaneously, also can be in only a certain fluid side use Fin; Heat exchange plate and fin can use the carbon steel thin plate manufacturing.

The specific embodiment

In Fig. 3, with electric resistance welding fin (2) is welded on the heat exchange plate (4) earlier.Successively the plate that is welded with fin (2) (4) side seal plate (3) is fitted together then.

In Fig. 2, again all plates and balustrade deching are assembled successively.

In Fig. 1, the import and export bobbin carriage (5,6,9,10) of welding fluid and adapter (7,8,11,12).

Above-mentioned just illustrative to the description of utility model with reference to the drawings and the specific embodiments, and do not constitute qualification to it.Obviously, on basis of the present utility model, can carry out many modification, but not break away from its essence.

Claims

1. a plate-fin heat exchanger is made up of heat exchange plate, fin, side seal plate and import and export bobbin carriage, it is characterized in that: have fin on the heat exchange plate.

2. plate-fin heat exchanger according to claim 1 is characterized in that: fin is connected to heat exchange plate by electric resistance welding.

3. plate-fin heat exchanger according to claim 1 is characterized in that: the height of fin can touch adjacent plate, thereby adjacent plate is played a supporting role.

4. plate-fin heat exchanger according to claim 1 is characterized in that: two kinds of fluid side can be used fin simultaneously, also can use fin in a certain fluid side only.

5. plate-fin heat exchanger according to claim 1 is characterized in that: heat exchange plate and fin can use the carbon steel thin plate manufacturing.