CN205002652U - Inner fin screwed pipe and heat exchanger - Google Patents

Abstract

The utility model discloses an inner fin screwed pipe belongs to heat exchanger technical field, and it includes the screw body, the internal surface of screw body is equipped with the straight fin of a plurality of screwed pipes, all straight fin all is on a parallel with the axis setting of screw body, the utility model also discloses an use the heat exchanger of this inner fin screwed pipe, has solved heat exchange tube internal surface fin when preparation degree of difficulty technical problem big, with high costs of heat exchanger, and the wide application is in the heat exchanger.

Description

A kind of inner fin screwed pipe and heat exchanger

Technical field

The utility model relates to technical field of heat exchangers, particularly relates to a kind of inner fin screwed pipe and uses the heat exchanger of this inner fin screwed pipe.

Background technology

Heat exchanger, in the industrial production such as oil, chemical industry, light industry, pharmacy, the energy, is usually used as cryogen heating or high temperature fluid is cooled, vaporizing liquid become steam or steam-condensation is become liquid.Heat exchanger is a kind of unit both, as heater, cooler and condenser etc.; May also be the part of a certain process equipment, as the heat exchanger in ammonia convertor.Heat exchanger, at energy efficiency, improves heat transfer efficiency, reduces heat transfer area and reduces pressure drop, and improving the aspects such as device calorific intensity needs constantly research and improve.

The heat exchanger tube of heat exchanger generally strengthens heat transfer effect by changing surfaces externally and internally structure, heat exchanger tube all adopts screw thread and fin to increase surface area mostly at present, such as, in Chinese invention patent 200910003911.9 description, disclose a kind of heat exchanger heat-transfer pipe, the inner surface of bellows is formed spiral helicine inner surface groove, all be significantly improved in heat exchange efficiency and calorific intensity, but offer spiral helicine groove at the inner surface of bellows, its difficulty of processing is relatively high, considerably increases the manufacturing cost of heat exchanger tube.

Therefore, for a kind of new inner fin screwed pipe of exploitation and new heat exchanger, change traditional version, not only there is urgent researching value, also have good economic benefit and commercial Application potentiality, this is the power place that is accomplished of the utility model and basis just.

Utility model content

In order to overcome the defect of above-mentioned pointed prior art, the present inventor, to this has been further investigation, after having paid a large amount of creative work, thus completes the utility model.

Specifically, technical problem to be solved in the utility model is: provide a kind of inner fin screwed pipe, to solve the technical problem that when inner surface fin makes, difficulty is large, cost is high.

For solving the problems of the technologies described above, the technical solution of the utility model is: provide a kind of inner fin screwed pipe, comprise screw-thread pipe body, the inner surface of described screw-thread pipe body is provided with some screwed pipe straight fins, and the axis that all described straight fins are all parallel to described screw-thread pipe body is arranged.

In described inner fin screwed pipe of the present utility model, as the preferred technical scheme of one, described straight fins and described screw-thread pipe body are set to one.

In described inner fin screwed pipe of the present utility model, as the preferred technical scheme of one, described straight fins is the straight fins of deformation processing.

In described inner fin screwed pipe of the present utility model, as the preferred technical scheme of one, the sectional area of described screw-thread pipe body is all equal.

The utility model also solves another technical problem: provide a kind of heat exchanger, the technical problem that when making with the heat exchanger tube inner surface fin solving heat exchanger, difficulty is large, cost is high.

For solving the problems of the technologies described above, the technical solution of the utility model is: provide a kind of heat exchanger, comprises the inner fin screwed pipe described in above technical scheme.

After have employed technique scheme, the beneficial effects of the utility model are:

(1) because the inner surface of screw-thread pipe body is provided with some straight fins, every root straight fins is all that straight line extends from one end of screw-thread pipe body to the other end, and rise and fall along with the fluctuating of the inner surface of screw-thread pipe body, all straight fins all be arranged in parallel, and straight fins can either increase the area of inner surface, can ensure again the smoothness that fluid is carried, simultaneously straight fins adds and is more prone to man-hour, production efficiency is high, is convenient to shaping, and greatly reduces production cost.

(2) sectional area due to screw-thread pipe body is all equal, ensure that stability during screw-thread pipe body conveying fluid.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the cross-sectional schematic of the utility model embodiment;

Fig. 3 is the close-up schematic view of A in Fig. 1;

Wherein, in Fig. 1 to Fig. 3, each number designation refers to following concrete meaning, element and/or parts respectively.

In figure: 1, screw-thread pipe body, 2, straight fins.

Detailed description of the invention

Below in conjunction with drawings and Examples, the utility model is further illustrated.But the purposes of these exemplary embodiments and object are only used for exemplifying the utility model, not any type of any restriction is formed to real protection scope of the present utility model, more non-protection domain of the present utility model is confined to this.

Embodiment one:

As Fig. 1 to Fig. 3 jointly shown in, the utility model provides a kind of inner fin screwed pipe, comprise screw-thread pipe body 1, screw-thread pipe body 1 has the screw thread of single head or bull, screw thread is produced by deformation, increase the wall thickness that helicitic texture does not change original screw-thread pipe body 1, namely screw-thread pipe body 1 outside is that screw-thread pipe body 1 is inner for protruding simultaneously for groove, or screw-thread pipe body 1 inside is that screw-thread pipe body 1 is outside for protruding for groove simultaneously, the inner surface of screw-thread pipe body 1 is provided with some the threadingly axially extended straight fins 2 of body 1, every root straight fins 2 is all that straight line extends from one end of screw-thread pipe body 1 to the other end, and rise and fall along with the fluctuating of the inner surface of screw-thread pipe body 1, the axis that all straight fins 2 are all parallel to screw-thread pipe body 1 is arranged, straight fins 2 can either increase the area of inner surface, the smoothness that fluid is carried can be ensured again.At this, the cross sectional shape of straight fins 2 is not construed as limiting, and can be triangle, also can be arc, can also be the shape that other are convenient to process.

Straight fins 2 and screw-thread pipe body 1 are set to one, the straight fins that straight fins 2 is deformation processing, at this, deformation processing refers to directly be processed to form on fertile material, the technological method for processing such as such as roll forming, adopts deformation processing shaping, production efficiency is high, be convenient to shaping, and production cost is low, the processing method removing material can certainly be adopted.

The sectional area of screw-thread pipe body 1 is all equal, to ensure that screw-thread pipe body 1 carries the stability of fluid.

Embodiment two:

As shown in Figure 1, Figure 2 with Fig. 3 jointly shown in, the utility model additionally provides a kind of heat exchanger, comprises the inner fin screwed pipe introduced in embodiment one, arranges this inner fin screwed pipes some in housing.

Should be appreciated that the purposes of these embodiments is only not intended to for illustration of the utility model limit protection domain of the present utility model.In addition; also should understand; after having read technology contents of the present utility model, those skilled in the art can make various change, amendment and/or modification to the utility model, and these all equivalent form of values fall within the protection domain that the application's appended claims limits equally.

Claims (5)

1. an inner fin screwed pipe, comprises screw-thread pipe body, it is characterized in that: the inner surface of described screw-thread pipe body is provided with some screwed pipe straight fins, and the axis that all described straight fins are all parallel to described screw-thread pipe body is arranged.

2. inner fin screwed pipe as claimed in claim 1, is characterized in that: described straight fins and described screw-thread pipe body are set to one.

3. inner fin screwed pipe as claimed in claim 2, is characterized in that: described straight fins is the straight fins of deformation processing.

4. inner fin screwed pipe as claimed in claim 3, is characterized in that: the sectional area of described screw-thread pipe body is all equal.

5. a heat exchanger, is characterized in that: comprise the inner fin screwed pipe as described in any one of Claims 1-4 claim.