CN2884066Y

CN2884066Y - Improved evaporation type condensation coil of condenser

Info

Publication number: CN2884066Y
Application number: CN 200620029992
Authority: CN
Inventors: 李占明; 侯子午; 王金庆; 申德用; 冯秀荣; 李俊梅
Original assignee: LUOYANG LONGHUA REFRIGERATION EQUIPMENT CO Ltd
Current assignee: Luoyang Longhua Heat Transfer & Energy Conservation Co., Ltd.
Priority date: 2006-02-13
Filing date: 2006-02-13
Publication date: 2007-03-28
Anticipated expiration: 2016-02-13

Abstract

The utility model relates to an improved evaporation condenser, belonging to the evaporation condenser technology. The condenser coil (4) of the improved evaporation condenser is a pipe with internal and external thread, that is both the outer and the inner wall of the round steel pipe are thread-shaped. High-temperature gas refrigerant released from a compressor goes into the condenser coil and rotates at a high speed along the inner wall thread under the action of the inner wall thread to form turbulent flow, so that both the heat release coefficient of the refrigerant carrying hot gas and the heat transfer coefficient in the inner wall of the thread pipe are improved, thus the heat release ability in the pipe is improved. In addition, the total heat exchange area is enlarged because the heat exchange area of the thread pipe is larger than that of smooth pipe. In summary, the heat exchange efficiency of the condenser coils comprising a pipe with internal and external thread is improved dramatically. Compared with ordinary condensation pipe, the heat exchange efficiency is increased by more than 25% under the same conditions, and the manufacturing cost is saved.

Description

The condenser coil of improved evaporative condenser

Technical field

The utility model belongs to the evaporative condenser technology, mainly proposes a kind of condenser coil of improved evaporative condenser.

Background technology

Evaporative condenser is the product that substitutes traditional upright, closed shell and tube condenser, cooling tower, pond, its operation principle is to be that the interior high-temperature gas cold-producing medium of cooling medium and pipe carries out heat exchange with the water and air, the outer part evaporation of water of utilization pipe is taken away the heat in the in-tube condensation process, Fig. 1 is a kind of structural representation of evaporative condenser wherein, and it mainly is made up of parts such as axial flow blower 1, spray equipment 2, precooling fin 3, condenser coil 4, dehydrator 5, water-to-water heat exchanger 6, header tank 7, water circulating pump 8, ball-cock assemblys 9.Its course of work is, the steam condition cold-producing medium that compressor is discharged, enter precooling fin 3, after pre-cooled, enter condenser coil 4, cooling water and wind that condensed water is supplied with spray equipment 2 by water circulating pump 8 carry out heat exchange, tube refrigerant steam is condensed into liquid state gradually by gaseous state, condensation heat release in the pipe, make water heat absorption the become steam of part spray at the condenser coil outer surface, under the superpower effect of air-introduced machine 1, the steam equipment of being discharged from enters in the atmosphere, and simultaneously, the effect of superpower wind-force makes and forms negative pressure in the condenser coil group case, strengthened the spray evaporation of water again, improved the heat exchange effect of unit, do not evaporate and the water that heated up after absorbing heat in the process that falls, the new wind that is introduced into cools off, cooled water drops in the water tank 7, give spray equipment 2 by water pump 8 again and circulate, the water that evaporates is undertaken replenishing automatically by ball-cock assembly 9, makes water level keep inconvenience.Fig. 2 is the structural representation of another kind of evaporative condenser.10 is air intake grid among Fig. 2.The direction of arrow among the figure is represented the direction of outlet and inlet.The condenser coil that is used for the evaporative condenser of two kinds of models at present is the ellipse pipe, its inside and outside light wall that is.Refrigerant in it is the laminar flow rectilinear motion, the flow regime of shower water outside the pipe and air inducing also is smooth motion simultaneously, the exothermic coefficient in its pipe and the heat transfer coefficient of tube wall are lower, needing increases diameter of steel tube or disposes large-area steel pipe, just can reach the purpose that increases condensation heat transfer, thereby cause under the performance of whole condenser, cost is higher, invests bigger.

Summary of the invention

The utility model proposes a kind of condenser coil of improved evaporative condenser, by exothermal efficiency to medium in the architecture advances enhanced tube of condenser pipe, the evaporation heat absorption efficiency that pipe is outer, thereby the whole heat exchange efficiency of raising evaporative condenser.

The utility model realizes that its invention task and the technical scheme of taking are: described condenser coil is the internal and external threads pipe, be that condenser coil outer wall and inwall are screw-like, the high-temperature gas cold-producing medium that compressor is discharged, enter the condenser coil group that the internal and external threads pipe is formed, gaseous refrigerant under the effect of inside pipe wall screw thread curve, along inside pipe wall screw thread curve rotate at a high speed formed the rapids (disorderly) stream.Make and carry the hot gaseous cold-producing medium in the raising of screwed pipe inwall exothermic coefficient, the heat transfer coefficient of inside pipe wall also is improved, thereby has improved the heat release ability in the pipe, and screwed pipe is bigger than plain tube heat exchange area, is that total heat exchange area is improved.In a word, the condenser coil group heat exchange efficiency of internal and external threads pipe composition is greatly improved.Compare with common condenser pipe, under similarity condition, can improve heat exchange efficiency more than 25%.And saved manufacturing cost.

The design feature that the utility model proposes is:

1. reduce condenser coil and arrange several 2 rows, reduce the resistance of adverse current wind;

2. (graduated dial pipe group tubing) 30% saves material;

3. improve heat exchange efficiency more than 25%;

4. reduce by 500 millimeters of device height;

5. save manufacturing cost more than 5000 yuan.(product of standard heat exhaust 1500kw)

Description of drawings

Accompanying drawing 1 is the evaporative condenser structural representation.

Accompanying drawing 2 is a countercurrent evaporation formula condenser structure schematic diagram.

Accompanying drawing 3 is the utility model condenser coil structural representation.

Among the figure: 1. axial flow blower 2. spray equipments 3. precooling fins 4. condenser coils 5. dehydrators 6. water-to-water heat exchangers 7. header tanks 8. water circulating pumps 9. ball-cock assemblys 10. air intake grids.

The specific embodiment

In conjunction with the accompanying drawings the utility model embodiment is illustrated:

As shown in Figure 3, condenser coil 4 pipe shafts described in the utility model are circular, and condenser coil is the internal and external threads pipe, and promptly the outer wall of condenser coil and inwall are screw-like.

Described condenser coil is that to make its tube wall by round steel pipe through extruding be concavo-convex alternate screw-like.

Claims

1, a kind of condenser coil of improved evaporative condenser is characterized in that: described condenser coil (4) is the internal and external threads pipe, and promptly the outer wall of its round steel pipe and inwall are screw-like.