CN202432896U

CN202432896U - Self-supporting all-welded plate-type heat exchanger

Info

Publication number: CN202432896U
Application number: CN2011205098629U
Authority: CN
Inventors: 钱江; 黄伟昌; 王玉; 丰艳春; 戴洋; 徐大鹿
Original assignee: Shenyang Huibo Heat Energy Equipment Co Ltd
Current assignee: Shenyang Huibo Heat Energy Equipment Co Ltd
Priority date: 2011-12-09
Filing date: 2011-12-09
Publication date: 2012-09-12
Anticipated expiration: 2021-12-09

Abstract

The utility model relates to a self-supporting all-welded plate-type heat exchanger which is formed by welding adjacent heat exchange plate bodies. The self-supporting all-welded plate-type heat exchanger is characterized in that bulges and recessed circular truncated cones are uniformly distributed at intervals on a rectangular heat exchange plate; only two parallel sides of the heat exchange plate are provided with opposite edge-folds; the heights of the edge-folds is the sum of a protruding height of each circular truncated cone and the recessed depth; half of the edge-folded heat exchange plates and the other half of the heat exchange plates are arranged in the same direction with the adjacent edge-folds forming an angle of 90 degrees; the protruding circular truncated cones and the recessed circular truncated cones of two plates are opposite; the end face of one edge-fold and the edge of the unfolded heat exchange plates are mutually welded with an angle of 90 degrees to form a rectangular heat exchanger with passages intersected into 90 degrees; the edges of four opposite surfaces of the heat exchanger respectively extend on coplanar edges to be welded with a frame and are connected or welded with a draught cover bolt; and draught inlet and outlet of a same medium are spaced with an angle of 180 degrees. The self-supporting all-welded plate-type heat exchanger has the advantage that the problem of waste heat recovery of a micro-operating resistance in gas-gas heat exchange of low pressure or micropressure high-temperature tail gas, flue gas and the like can be effectively solved.

Description

A kind of self-supporting full welded plate formula heat exchanger

Technical field

The utility model relates to heat-transfer equipment, and all unmixed cross-flow heat-exchange apparatus of a kind of two side liquids is specially adapted to the heat-transfer equipment of the apparatus for energy recovery of gas-gas low pressure, little running resistance.

Technical background

In gas-gas heat transmission equipment, adopt plate type heat exchangers or shell-and-tube heat exchangers at present more; Shell-and-tube heat exchanger can high temperature resistant, high pressure; But it is bigger that equipment takes up an area of, and the equipment running resistance is higher, and two collateral resistances are all at 0.01～0.05MPa (more than 10000～50000Pa); Plate type heat exchanger is extensively adopted because of the adjustment that its heat exchange efficiency is high, heat exchange area can be done certain limit; But the runner of board-like heat exchanger is complicated, and circulation area is little, and running resistance is big; Can reach 0.01～0.1MPa (10000～100000Pa); And easy fouling, and the operating pressure of high-temperature gases such as high-temperature tail gas, flue gas is merely 1000Pa～2000Pa, so existing heat transmission equipment is not suitable for or can't under low pressure or minute-pressure operating mode, use.

Summary of the invention

The purpose of the utility model provides a kind of self-supporting full welded plate formula heat exchanger, can effectively solve low pressure or gas---the waste heat recovery problems of little running resistance in the gas heat exchange such as micro-pressure high-temperature tail gas, flue gas.

The solution of the utility model is: this self-supporting full welded plate formula heat exchanger; Be welded by adjacent heat exchanger plates sheet body; It is characterized in that even and the protruding frustum of a cone spaced apart and the depression frustum of a cone on the rectangular heat exchanger plate sheet, the frustum of a cone evenly is staggered in the sheet material both sides with behavior unit, and spacing all equates; Heat exchange plate only two parallel avris has flanging in opposite directions, and the flanging height is bump height and a cup depth sum on the plate; The heat exchange plate of half behind the flanging is 90 ° of arrangements in the same way with remaining half heat exchange plate in addition with adjacent flanging; And the protruding frustum of a cone of two plates is relative with the depression frustum of a cone; Flanging end face and 90 ° of angles, flanging plate edge not are welded to each other; Form the heat exchanger that passage is crossed as 90 ° cuboid each other, four face edges of heat exchanger prolong at coplanar respectively and weld out frame, join with the blower cover bolt or weld; The flow direction of hot and cold medium and runner can be chosen one of which wantonly, same medium be separated by 180 ° into and out of air-vent.

The advantage of the design's this self-supporting full welded plate formula heat exchanger is: be used for heat exchange 1000Pa under low, the minute-pressure condition, and be two kinds of immiscible fluids, generally be 100 ℃ under vapoury waste heat recovery.The aisle spare that forms behind the gas converting heat plate flanging is controlled at 1.5～2 times of air channel area; Make the flow resistance of hot and cold medium in heat exchanger be lower than duct resistance; Two cover air-vents; Cold wind is blown into, hot blast is reclaimed in the back of absorbing heat, and assurance equipment is at gas such as low pressure or micro-pressure high-temperature tail gas, flue gases---the normal operation in the gas heat exchange in the waste heat recovery of little running resistance.Be particularly suitable under the low pressure of chemical industry, pharmacy, tobacco processing, food-processing industry or minute-pressure operating mode, carrying out exchange heat, have that running resistance is little, heat exchange efficiency is high, simple and compact for structure, make characteristics such as easy, that sealing is reliable, runner is roomy.

Description of drawings

Fig. 1 is the structural representation of this self-supporting full welded plate formula heat exchanger;

Fig. 2 is the heat exchanger assembling sketch map after welding;

Fig. 3 a is heat exchanger fin 1 front view of folding minor face;

Fig. 3 b is heat exchanger fin 1 side view of folding minor face;

Fig. 4 a is heat exchanger fin 2 front views on the long limit of folding;

Fig. 4 b is heat exchanger fin 2 side views of folding minor face.

The specific embodiment

A kind of self-supporting full welded plate formula heat exchanger; Be welded by heat exchanger plates self; See Fig. 1; It is characterized in that the even protruding frustum of a cone 3 spaced apart and the depression frustum of a cone 4 on the rectangular heat exchanger plate sheet, the frustum of a cone with behavior unit arrange in length and breadth at interval in the sheet material two sides, be interspersed, spacing equates that arrangement pitches is 50～500mm.The protruding frustum of a cone 3 is identical with the depression frustum of a cone 4 specifications, height 3～40mm, and top diameter is 5～40mm, and the base diameter of the frustum of a cone is 15～80mm, and the chamfer radius of the frustum of a cone is 2～15mm, highly all equates.

The two long limits of heat exchange plate parallel sides or the flanging height of two minor faces equate with the protruding frustum of a cone of flanging side and the total height of depression frustum of a cone sum.

When making the heat exchanger of cuboid: see Fig. 2: will have the rectangular heat exchanger plate sheet two long limits or two minor faces of the protruding frustum of a cone or the depression frustum of a cone to carry out same parallel sides flanging in opposite directions respectively, the folding minor face sees that Fig. 3 a, Fig. 3 b, the long limit of folding see Fig. 4 a, Fig. 4 b; During assembling; To roll over the heat exchange plate 1 of minor face and the heat exchange plate 2 on the long limit of folding respectively is spaced, arranges by identical flanging direction alignment with 90 ° of adjacent flangings; And the protruding frustum of a cone of two plates is relative with the depression frustum of a cone; Flanging end face and 90 ° of angles, flanging plate edge not are welded to each other, form two heat exchangers of cuboid that are crossed as 90 ° vertical and horizontal passage each other; Four opposite faces of heat exchanger prolong at the coplanar edge respectively and weld out frame, join with the blower cover bolt or weld, and the flow direction of hot and cold medium and runner can choose at random, same medium be separated by 180 ° into and out of air-vent.Hot and cold gas advances orthogonal passage respectively, thereby realizes the purpose of exchange heat.

During the heat exchanger of the side's of manufacturing body: heat exchange plate only two parallel avris has flanging in opposite directions, and the heat exchange plate behind the half flanging and remaining half heat exchange plate in addition are with 90 ° of arrangements of adjacent flanging.

The heat exchanger of above-mentioned two kinds of shapes is characterized in that behind the heat exchange plate folding be the sheet material of the desired same size of finished product.

Claims

1. self-supporting full welded plate formula heat exchanger; Be welded to each other by the adjacent heat exchanger plates body and form; It is characterized in that even and the protruding frustum of a cone spaced apart and the depression frustum of a cone on the rectangular heat exchanger plate sheet, the frustum of a cone evenly is staggered in the sheet material both sides with behavior unit, and spacing all equates; Heat exchange plate only two parallel avris has flanging in opposite directions, and the flanging height is bump height and a cup depth sum on the plate; The heat exchange plate of half behind the flanging is 90 ° of arrangements in the same way with remaining half heat exchange plate in addition with adjacent flanging; Flanging end face and flanging plate edge not are welded to each other; Form the heat exchanger that passage is crossed as 90 ° cuboid each other, four face edges of heat exchanger weld out frame prolonging in the same way respectively, join with the blower cover bolt or weld; The flow direction of hot and cold medium and runner can be chosen one of which wantonly, same medium be separated by 180 ° into and out of air-vent.

2. self-supporting full welded plate formula heat exchanger according to claim 1 is characterized in that the protruding frustum of a cone on the heat exchanger fin is arranged at interval with the depression frustum of a cone in length and breadth, is interspersed, spacing equates that spacing is 50～500mm.

3. according to the said self-supporting full welded plate of claim 1 formula heat exchanger; It is characterized in that the protruding frustum of a cone on the said heat exchanger fin is identical with the depression truncated cone shape, highly all equal; The top diameter of its frustum of a cone is 5～40mm; The base diameter of the frustum of a cone is 15～80mm, and the chamfer radius of the frustum of a cone is 2～15mm, height 3～40mm.

4. according to the said self-supporting full welded plate of claim 1 formula heat exchanger; It is characterized in that the two long limits of heat exchange plate parallel sides or the flanging height of two minor faces are height sums of the protruding frustum of a cone with the depression frustum of a cone of flanging side, welding back flanging total height equates with the protuberance of truncated cone and the total height of depression.