CN2876671Y

CN2876671Y - Plate type air cooler

Info

Publication number: CN2876671Y
Application number: CNU2006200900896U
Authority: CN
Inventors: 李德君; 郭占利; 孙雅忠; 武绍军
Original assignee: ZHONGYOU FUSHUN ENGINEERING CONSTRUCTION Co Ltd
Current assignee: ZHONGYOU FUSHUN ENGINEERING CONSTRUCTION Co Ltd
Priority date: 2006-03-28
Filing date: 2006-03-28
Publication date: 2007-03-07
Anticipated expiration: 2016-03-28

Abstract

The utility model discloses a plate type air cooler for process fluid cooling or condensation during manufacture in fields like petrochemical industry, which comprises a framework, a fan, and two plate type tube bundles with the superior and the inferior ends connected with two channel boxes, wherein, the upper end of the superior channel box is provided with a medium intake, and the lower end of the inferior channel box is provided with a medium outlet. The two plate type tube bundles, each arranged in turn an air intake, a shutter and a sprinkling device on the out side, are respectively positioned at the two sides of the framework, and the fan is mounted on the framework. The utility model obtains more reasonable ratio of heat transfer area and forced air cooling area, avoiding heat transfer bottleneck resulting from intra-tube heat transfer area shortage; and has the advantages of adoption of smaller fan, avoidance of uneven radiator pipe temperature and expansion, improvement of heat transfer efficiency, as well as small volume, light weight and compact structure.

Description

Plate air cooler

One, technical field

The utility model relates to a kind of air cooler, particularly the plate air cooler that the plate-type heat-exchange technology is combined with air cooler.

Two, background technology

Air cooler is as the cooling or the common equipment of condensation process fluid in the field of petrochemical industry production process, can simplified cooling system, reduce cost and operation and maintenance cost.

Present existing air cooler technology mostly adopts circular or oval finned tube heat exchange, walks thermal medium in the pipe, and the inswept staggered finned tube of axial flow blower blow air cross-flow (laterally) is taken away heat in the pipe.This structure can guarantee enough withstand voltage and to the sealing of thermal medium, but when being used for gas cooled or condensation, the heat transfer area in the pipe is a spot of than the shared gross space of air cooler, and is too little with the ratio of the heat transfer area of the outer fin of pipe.The turbulent extent of adding in the pipe is not high, and film coefficient of heat transfer is little, has caused the bottleneck of heat output as a result in the pipe.

Use axial flow blower air inducing, its ventilation section is circular, causes the air quantity at four jiaos of places of square air cooler very little, has above 20% heat exchange area and fails to be fully utilized; It is also inhomogeneous to add on the passage section flow velocity, causes the inequality of cooling heat transferring.

When using as cooler, because heat-exchange finned tube is blown in cold air cross-flow (vertical or certain inclination), can not realize countercurrent flow, heat transfer temperature difference cold section of thermal medium causes cold section heat exchange amount low for a short time, the waste heat exchange area, the utilization rate that air is taken away heat is also low, has increased the energy consumption of blower fan.

Though these air coolers can reach the specification requirement of heat exchange cooling, heat exchange efficiency is not high, also has problems such as energy utilization rate is low, structure heaviness.

Three, summary of the invention

The plate air cooler that the purpose of this invention is to provide a kind of efficient height that the plate type heat exchanger technology of high efficient heat exchanging is combined with air cooler, energy savings, compact conformation.

Plate air cooler comprises framework, blower fan, board-like tube bank, and board-like tube bank upper/lower terminal is connected with bobbin carriage, and the medium inlet is established in the upper tube box upper end, and media outlet is established in the lower tube box lower end.Two groups of board-like tube banks place the framework both sides respectively, and blower fan is arranged on the framework, and every group of board-like tube bank outside has air intake, shutter, spray equipment successively.

Do not have the other both sides of board-like tube bank that two groups of board-like tube banks also are set respectively at framework, four groups of board-like tube banks promptly are set around framework.

Blower fan is arranged on the upper end or the lower end of framework.

The board-like tube bank upper end in the framework outside tilts to the inside, and to strengthen countercurrent flow, its inclination alpha is 0-45 °.Best angle is 5-30 °.

Board-like tube bank upper/lower terminal connects with bobbin carriage can adopt fixed welding, also can adopt detachable flange to connect, so that cleaned and changed.

The contrast prior art the utlity model has following advantage:

1, the heat exchange area in the common fin tube type air cooling organ pipe is less than 1/3 outside the pipe, and velocity in pipes is low, makes heat transfer coefficient also little.The utility model adopts the plank frame of side seam welding, the heat transfer area of its side medium is littler of 20% than air cooling side, and the side medium heat transfer coefficient increases, increased the heat output in the pipe, can obtain the ratio of more rational heat transfer area and air-cooled area, and avoid intraductal heat transfer area relative deficiency and the heat transfer bottleneck that causes.

2, the utility model can make the heat of taking of unit mass air increase because board-like tube bank has certain inclination angle to make heat exchange mode be similar to pure countercurrent flow, and the specific air consumption of promptly taking away with the calorimetric amount reduces, thereby it is energy-conservation to select for use less blower fan to realize.

3, improve the temperature and the even phenomenon of non-homogeneous expansion of existing air cooler windward side and after wind face two place's radiating tubes.Under the situation of independent radiating tube one by one, (not to fan) the face intake air temperature of facining the wind is minimum, and this place's pipe heat exchange is the strongest, and Guan Wen is also minimum; And the temperature of after wind (to fan) face raises, a little less than the heat exchange of this place's pipe, and Guan Wengao.Adopt the heat exchange element of plank frame, medium is netted flowing between journey, hot and cold stream is laterally (along the cooling airflow direction) migration all, can also be artificially add one, two horizontal passage flow duct (each plate medium journey also can in this intercommunication), thereby avoid before the wind and the temperature and the even phenomenon of non-homogeneous expansion of radiating tube behind the wind in the centre.

4, plate-type heat-exchange can reduce the boundary layer thickness of wall because bubble point structure wherein very easily forms turbulent flow, improves heat transfer efficiency thereby improve film coefficient of heat transfer, and the smooth and souring fouling not too easily because of the plate face, also is like this for air side.

5, little, in light weight, the compact conformation of volume.

Four, description of drawings

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

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the utility model user mode figure;

Fig. 4, Fig. 5, Fig. 6 are board-like Pipe bundle structure figure.

Five, the specific embodiment

Plate air cooler comprises framework 10, blower fan 6 and board-like tube bank 8, and board-like pipe 8 upper/lower terminals are connected with bobbin carriage 7,9, and medium inlet 1 is arranged above the upper tube box 7, media outlet 2 is arranged below the lower tube box 9.Two groups of board-like tube banks 8 place framework 10 both sides respectively, and blower fan 6 is arranged on the upper end or the lower end of framework 10, and every group of board-like tube bank 8 outsides have air intake, shutter 4, water leg 3, spray equipment 5 successively.The plate of wherein board-like tube bank 8 is that stainless sheet steel is stamped to form, and bubbling shape, rectangle, trapezoidal, herringbone etc. are arranged.Two plate composing plate pipes, with the argon arc welding welding, the board-like tube bank 8 that the plate pipe is formed has certain angle of inclination.Board-like tube bank 8 upper/lower terminals connect employing fixed (welding) or detachable (flange) with bobbin carriage 7,9 and are connected.The bobbin carriage 7,9 at board-like tube bank 8 and two ends and bobbin carriage and medium entry and

exit

1,2 be connected with three kinds of form: a, three on same axis; B, board-like tube bank 8 and bobbin carriage 7,9 are on same axis, and the axis of the two and medium entry and

exit

1,2 differs the α angle; C, bobbin carriage 7,9 and medium entry and

exit

1,2 are on same axis, and the axis of the two and board-like tube bank 8 differs the α angle.Blower fan 6 adopts the induced air type axial flow blower to add energy saving control system of frequency conversion in use.Blower fan 6, board-like tube bank 8 etc. are fixed on respectively on the framework 10.Framework 10 adopts riveted joint such as angle steel, channel-section steel, steel plate or welds and make.The utility model adopts fabricated structure, and board-like tube bank 8, framework 10, water leg 3 etc. establish one's own system, and is convenient to make, transports, installs and maintenance.

Thermal medium from up to down flows in board-like tube bank, and air is regulated the air quantity size through shutter, by crossing board-like tube bank and thermal medium heat exchange after the cooling of spray equipment work of water sprinkling for better material moisture, is blown out by the blower fan place at last.Shower water can be recycled after water leg is collected.Water leg and spray equipment not only can establish one's own system but also can incorporate in the circulation of process units.

Claims

1, a kind of plate air cooler, comprise framework (10), blower fan (6), board-like tube bank (8), board-like tube bank (8) upper/lower terminal is connected with bobbin carriage (7), (9), medium inlet (1) is established in upper tube box (7) upper end, media outlet (2) is established in lower tube box (9) lower end, it is characterized in that: two groups of board-like tube banks (8) place framework (10) both sides respectively, and blower fan (6) is arranged on the framework (10), and every group of board-like tube bank (8) outside has air intake, shutter (4), spray equipment (5) successively.

2, plate air cooler according to claim 1 is characterized in that: do not have the other both sides of board-like tube bank that two groups of board-like tube banks (8) also are set respectively at framework (10).

3, plate air cooler according to claim 1 is characterized in that: blower fan (6) is arranged on the upper end of framework (10).

4, plate air cooler according to claim 1 is characterized in that: blower fan (6) is arranged on the lower end of framework (10).

5, plate air cooler according to claim 1 and 2 is characterized in that: board-like tube bank (8) upper end in framework (10) outside tilts to the inside, and its inclination angle is 0-45 °.

6, plate air cooler according to claim 5 is characterized in that: board-like tube bank (8) upper end in framework (10) outside tilts to the inside, and its inclination angle is 5-30 °.

7, plate air cooler according to claim 1 is characterized in that: board-like tube bank (8) connects with bobbin carriage (7), (9) of upper/lower terminal adopts welding.

8, plate air cooler according to claim 1 is characterized in that: board-like tube bank (8) connects with bobbin carriage (7), (9) of upper/lower terminal adopts flange to connect.