CN203657555U

CN203657555U - Spiral fin type efficient heat exchanger easy to descale

Info

Publication number: CN203657555U
Application number: CN201320319940.8U
Authority: CN
Inventors: 万祥淑
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-28
Filing date: 2013-05-28
Publication date: 2014-06-18
Anticipated expiration: 2023-05-28

Abstract

The utility model discloses a spiral fin type efficient heat exchanger easy to descale. The heat exchanger comprises an outer-layer steel pipe, a middle-layer copper pipe, an inner-layer steel pipe and spiral fins, and is characterized in that under combination of seal rings and closure plates, the inner-layer steel pipe, the middle-layer copper pipe and the outer-layer steel pipe form a thermal medium channel and a cooling water channel, one spiral fin is arranged in each channel, a thermal medium and cooling water perform spiral motion forward around a cylinder body in the channels by means of the arrangement of the fins, therefore, the thermal medium and the cooling water pass through two sides of the middle-layer copper pipe simultaneously in reverse directions, and heat exchange is finished. According to the heat exchanger, reverse cooling is adopted, a conventional flowing mode is changed by the arrangement of the spiral fins, contact area of the thermal medium per unit with a condensing wall is enlarged, and the cooling efficiency of the high-temperature medium is increased; and the detachable heat exchanger has convenience in descaling and is suitable for environments with high temperature and different cooling water quality.

Description

The easy scale removal efficient heat exchanger of spiral wing formula

One, technical field

The utility model belongs to heat-exchange apparatus, particularly a kind of by the easy scale removal efficient heat exchanger of spiral wing formula cooling high-temperature oil gas.

Two, background technology

Current existing heat exchange equipment has plate-sheet-type, plate-fin, helix tube type, tubular style, in use appearance heat exchange is in various degree inhomogeneous, effective area is little, heat exchanger effectiveness is low, the not smooth step-down of thermal medium is large, internal incrustation stops up, and service life is short, and quality of cooling water is required to the problems such as strict.

Three, summary of the invention

The utility model is for the problems of the prior art, a kind of good effect of heat exchange is provided, can conveniently cleans, the easy scale removal efficient heat exchanger of spiral wing formula of long service life.

The technical solution of the utility model is: comprise heat medium flow channel, cooling water runner, outer layer pipe, intermediate layer copper pipe, inner layer steel pipe and helical fin, outer layer pipe, intermediate layer copper pipe and inner layer steel pipe are three concentric metal cylinders, form the main framework of this heat exchanger, between it, be respectively equipped with sealing ring, end caps is sealed by bolt, between each like this layer, form respectively heat medium flow channel and cooling water runner, between runner, be also provided with respectively helical fin.

Outer layer pipe both sides are provided with low-temperature cooling water water inlet and high-temperature cooling water delivery port, and one end is provided with cryogenic media outlet, and the other end is opening; Intermediate layer copper pipe is thin copper pipe, and one end arranges annular closure plate, and the oral area of annular is the same with delivery port oral area size, and the other end is opening; Inner layer steel pipe one end is provided with thermal medium import, thermal medium import department is also provided with end cap, end cap and outer layer pipe opening are used in conjunction with, for securing member locking, the other end is provided with the arthrostome of protrusion, arthrostome is passed the annular closure plate of intermediate layer copper pipe to the delivery port annular closure plate place of outer layer pipe, the arthrostome of inner layer steel pipe end plays guide effect when mounted, on the tube wall of internal memory steel pipe two ends, have the hole of several air-flow altogether turnover, inside, inner layer steel pipe two ends is provided with closure plate in addition, closure plate does not arrive tapping, and closure plate makes inner layer steel pipe interlude sealed hollow.

Between the cylindrical shell that three are set with one heart, form two runners, be heat medium flow channel and cooling water runner, in two runners, be also provided with two spiral yarn shaped fins, two spiral yarn shaped fins are reasonably positioned in runner, and along with the setting of helical fin, thermal medium and cooling water can move around its cylindrical shell formula of spinning forward in runner like this, in copper pipe both sides, intermediate layer simultaneously by thermal medium and cooling water, carry out reverse cooling, thereby complete heat exchange, reach the cooling effect to thermal medium.

Compared with prior art, the utility model has the advantages that: changed the connection model of pipeline in the past, by original straight-through runner, changed the rotating channel advancing around cylindrical shell spiral into, the range ability in cooled region is extended several times by the change of circulation style, greatly improved cooling effect; Owing to having improved cooling effect, can, the in the situation that of same cooling effectiveness, reduce the volume of heat exchanger, reduce work energy consumption, thereby reduce practical cost; The utility model is designed to detachable, has carried out architecture advances, can extract easily each cylindrical shell out, to cleaning in cylinder, prevents pipeline scale, obstruction; The utility model is applicable to the cooling of high-temperature medium, and physical life is long, convenient and practical, and the place of different quality all can be used.

Four, accompanying drawing explanation

Fig. 1 is the 3-D solid structure schematic diagram of the easy scale removal efficient heat exchanger of the utility model spiral wing formula.

Fig. 2 is the organigram of the easy scale removal efficient heat exchanger of the utility model spiral wing formula.

Fig. 3 is the local enlarged diagram in A place in Fig. 2.

Fig. 4 is the local enlarged diagram in B place in Fig. 2.

In figure: 1. thermal medium import; 2. cryogenic media outlet; 3. low-temperature cooling water water inlet; 4. high-temperature cooling water delivery port; 5. outer layer pipe; 6. intermediate layer copper pipe; 7. inner layer steel pipe; 8. closure plate; 9. the spiral yarn shaped fin of internal layer; 10. outer spiral yarn shaped fin; 11. sealing rings.

Five, the specific embodiment

Below in conjunction with accompanying drawing, the utility model is made to detailed description.

As shown in Figures 1 to 4, the easy scale removal efficient heat exchanger of a kind of spiral wing formula, formed by cylindrical shell and helical fin, cylindrical shell is outer layer pipe 5, intermediate layer copper pipe 6 and the inner layer steel pipe 7 of suit with one heart, be provided with low-temperature cooling water water inlet 3 and high-temperature cooling water delivery port 4 in the both sides of outer layer pipe 5, one end is provided with cryogenic media outlet 2.Between outer layer pipe 5 and intermediate layer copper pipe 6, rationally placed a spiral yarn shaped fin 10, spiral yarn shaped fin 10 can make cooling water before intermediate layer copper pipe 6 screws, flow in inside, thereby forms screw type water flow passage.Inner layer steel pipe 7 one end are provided with thermal medium import 1, have the hole of several heating medium turnover in the steel pipe walls of two ends, and inner layer steel pipe 7 inside, two ends are provided with closure plate 8 in addition, and closure plate 8 does not arrive tapping, and closure plate 8 makes inner layer steel pipe 7 interlude sealed hollows.Between inner layer steel pipe 7 and intermediate layer copper pipe 6, rationally placed another spiral yarn shaped fin 9, spiral yarn shaped fin 9 can make thermal medium before inner layer steel pipe 7 screws, flow in inside, thereby forms screw type heat medium flow channel.

The thermal medium entrance point of inner layer steel pipe 7 is also provided with end cap, and end cap is by bolt by outer layer pipe 5 end face opening sealings, and outer layer pipe 5 is respectively equipped with sealing ring 11 with intermediate layer copper pipe 6 two ends, and intermediate layer copper pipe 6 is respectively equipped with sealing ring 11 with inner layer steel pipe 7 two ends.

Operation principle of the present utility model as shown in Figure 2, high-temperature medium is entered in inner layer steel pipe 7 by thermal medium import 1, under the stopping of closure plate, perforate on tube wall flows into the passage forming between inner layer steel pipe 7 and intermediate layer copper pipe 6, along the spiral yarn shaped fin 9 of internal layer, the thermal medium screw other end continues mobile, again enters in inner layer steel pipe 7 other ends by the perforate on inner layer steel pipe 7 other end tube walls, finally flows to cryogenic media outlet 2.Cooling water enters from the water inlet 3 of outer layer pipe 5, flow into the passage forming between intermediate layer copper pipe 6 and outer layer pipe 5, along outer spiral yarn shaped fin 10, current screw other end delivery port 4 moves, the reverse movement of current and high-temperature medium in this process, in mobile process, carry out exchange heat through copper pipe wall and high temperature gas flow, the hot water after heat exchange is finally discharged from delivery port 4.

Embodiment of the present utility model can be used as deep fat, hot blast, steam, the heat exchange of hot water to cold water.

The above; only that a kind of heat exchange of the utility model is described; not technical scope of the present utility model is made to any restriction; the content that protection domain of the present utility model is recorded with claim is as the criterion; every equivalence techniques means of making according to the utility model description are replaced, and all belong to protection domain of the present utility model.

Claims

1. the easy scale removal efficient heat exchanger of spiral wing formula, formed by cylindrical shell and helical fin, it is characterized in that: three cylindrical shells that are set with are with one heart respectively outer layer pipes, intermediate layer copper pipe and inner layer steel pipe, outer layer pipe both sides are provided with water inlet and delivery port, one end is provided with cryogenic media outlet, inner layer steel pipe one end is provided with thermal medium import, on the tube wall of inner layer steel pipe two ends, have the hole of several heating medium turnover, inside, inner layer steel pipe two ends is provided with closure plate in addition, closure plate does not arrive tapping, closure plate makes inner layer steel pipe interlude sealed hollow, between the cylindrical shell that three are set with one heart, form two runners, in two runners, be placed with two helical fins.

2. the easy scale removal efficient heat exchanger of spiral wing formula according to claim 1, is characterized in that: described helical fin is spiral yarn shaped fin.

3. the easy scale removal efficient heat exchanger of spiral wing formula according to claim 1, is characterized in that: described heat exchanger is detachable.