CN106871687A - One kind improvement heat exchange reinforced pipe - Google Patents

Abstract

The invention discloses one kind improvement heat exchange reinforced pipe, including pipe section；Pipe section is connected by oval changeover portion with oval pipeline section；Each pipe section is isometric；Each oval pipeline section is isometric；The section transverse intersecting angle of two adjacent oval pipeline sections is 15 °~90 °；The shape of cross section of oval transitional pipe segment is that standard ellipse or sub-elliptical or two straight lines add two oblate or circles of the symmetrical and near symmetrical of the oblate or multistage camber line fitting of circular arcs composition；Each oval transitional pipe segment is isometric；The two ends of the improvement heat exchange reinforced pipe set Conduit Joint section；The inner wall smooth of Conduit Joint section；The Conduit Joint section is identical with the internal diameter of pipe section.Simple structure of the present invention, the effective and reasonable balance for having coordinated velocity field and temperature gradient field, energy-conserving and environment-protective efficiency high.

Description

One kind improvement heat exchange reinforced pipe

Technical field

The present invention relates to a kind of heat-transfer arrangement, more particularly to a kind of heat-exchange device of duct type.

Background technology

Heat transfer enhancing technology can also reach the purpose of energy-conservation because heat transfer speed can be improved, in daily life It is widely used in work.Heat transfer enhancing technology is broadly divided into actively enhancing and passive enhancing technology.Before Person refers to need the heat transfer enhancing technology from extraneous input energy, such as electric-field enhancing, magnetic field-enhanced, vibration Enhancing technology etc.；The latter refers to the heat transfer enhancing technology for not needing outside energy, therefore is easier to be answered Use in the middle of engineering.Passive enhancing technology generally includes extended surface (fin), that pipe is inserted into thing, eddy flow is (disorderly Stream) generator etc..Passive enhancing technology has been widely used, but there are still a common problem, While i.e. heat transfer strengthens, flow resistance increases more, is unfavorable for energy-conservation, so as to hinder these technologies It is applied more broadly in each engineering field.

Therefore those skilled in the art endeavour and develop a kind of improvement heat friendship different with conventional heat transfer reinforced pipe Change reinforced pipe.From fluid velocity enhanced new method is transmitted with the angle raiser for cooperateing with of temperature gradient field " field coordination principle ", that is, improve the collaborative e-commerce of field, just can strengthen heat transfer under conditions of resistance increase is less. The present invention, according to this principle, is that Guan Liuzhong can form Radial Flow, can just significantly improve velocity field and temperature The collaboration degree of gradient fields, and then strengthen heat transfer, while also having reached the effect of energy-conservation.

The content of the invention

In view of the drawbacks described above of prior art, the technical problems to be solved by the invention are to provide a kind of heat transfer Efficiency high, simple structure, the heat-exchange tube of energy-conserving and environment-protective.

To achieve the above object, the invention provides one kind improvement heat exchange reinforced pipe, including pipe section, should Pipe section is connected by oval changeover portion with oval pipeline section.Each pipe section is isometric；Each oval pipeline section is isometric；Two The section transverse A intersecting angles C of individual adjacent oval pipeline section is 15 °~90 °；The horizontal stroke of oval transitional tubing piece Cross sectional shape is the oblate or multistage arc that standard ellipse or sub-elliptical or two straight lines add two circular arcs to constitute The oblate or circle of the symmetrical and near symmetrical of line fitting；Each oval transitional pipe segment is isometric.The improvement heat exchange The two ends of reinforced pipe set Conduit Joint section；The inner wall smooth of Conduit Joint section；Conduit Joint section and pipe section Internal diameter d it is identical, pipe section and oval pipeline section are connected in the middle of periodic arrangement by oval changeover portion successively.

Preferably, the ratio of the length Lc and its internal diameter d of the pipe section is 0.5~10；The oval pipeline section Length Le and the pipe section internal diameter d ratio be 1~10；The major axis of the oval transitional pipe segment external diameter The ratio of A and short axle B is 1.1~2.5.

Preferably, the inner surface and appearance of the pipe section, the oval pipeline section and the oval transitional pipe segment Face is smooth surface.

The beneficial effects of the invention are as follows：Simple structure of the present invention, effective and reasonable has coordinated velocity field and temperature The balance of gradient fields, energy-conserving and environment-protective efficiency high.

Brief description of the drawings

Fig. 1 is structural representation of the invention.

Fig. 2 is elliptical tube segment length between centers angle schematic diagram of the invention.

Fig. 3 is the liquid flowing state schematic diagram in ellipse pipeline section of the invention.

Specific embodiment

The invention will be further described with reference to the accompanying drawings and examples：

As shown in Figure 1 and Figure 2, a kind of improvement heat exchange reinforced pipe, including pipe section 1；Pipe section 1 is led to Oval changeover portion 3 is crossed to be connected with oval pipeline section 2；Each pipe section 1 can be equal or different length；It is each ellipse Pipe section 2 can be equal or different length.The section transverse A of two adjacent oval pipeline sections 2 is handed over Fork angle C is 15 °~90 °, and this angle is to produce bigger resistance to increase when liquid in pipe flows.It is ellipse The shape of cross section of circle transitional pipe segment 3 adds two circular arcs to constitute for standard ellipse or sub-elliptical or two straight lines Oblateness or the fitting of multistage camber line symmetrical and near symmetrical oblate or circle；Each oval transitional pipe segment 3 It can be equal or different length.The two ends of the improvement heat exchange reinforced pipe set Conduit Joint section 4；The circle The inner wall smooth of pipe joint section 4, the smooth inwall can be with better seal when being to install；Pipe connects Head section 4 is identical with the internal diameter of pipe section 1.

The ratio of the length Lc and its internal diameter d of pipe section 1 is 0.5~10；The length Le of oval pipeline section 2 with The ratio of the internal diameter d of pipe section 1 is 1~10；The major axis A and short axle B of the external diameter of oval transitional pipe segment 3 Ratio be 1.1~2.5.

Pipe section 1, the inner surface of oval pipeline section 2 and oval transitional pipe segment 3 and outer surface are smooth surface, Such pipeline reduces liquid flowing resistance, reduces energy ezpenditure.Fig. 3 is liquid flow in oval pipeline section Dynamic distributed architecture schematic diagram.

Preferred embodiment of the invention described in detail above.It should be appreciated that the ordinary skill of this area Personnel just can make many modifications and variations without creative work with design of the invention.Therefore, it is all Technical staff passes through logic analysis, pushes away on the basis of existing technology under this invention's idea in the art Reason or the available technical scheme of limited experiment, all should be in the protection model being defined in the patent claims In enclosing.

Claims (2)

1. it is a kind of to improve heat exchange reinforced pipe, it is characterized in that：Including pipe section (1)；Pipe section (1) It is connected with oval pipeline section (2) by oval changeover portion (3)；Each pipe section (1) is isometric；It is each described Oval pipeline section (2) is isometric；Two section transverse intersecting angles of adjacent described oval pipeline section (2) It is 15 °~90 °；The shape of cross section of the oval transitional pipe segment (3) is standard ellipse or sub-elliptical or two Bar straight line add the symmetrical and near symmetrical of the oblateness that two circular arcs constitute or the fitting of multistage camber line oblateness or Circle；Each oval transitional pipe segment (3) is isometric；The two ends of the improvement heat exchange reinforced pipe set pipe and connect Head section (4)；Pipe section (1), the oval pipeline section (2), the oval transitional pipe segment (3) and institute The inner surface and outer surface for stating Conduit Joint section (4) are smooth surface.

2. it is as claimed in claim 1 to improve heat exchange reinforced pipe, it is characterized in that：Pipe section (1) The ratio of length and its internal diameter be 0.5~10；The length of the oval pipeline section (2) and pipe section (1) Internal diameter ratio be 1~10；The major axis of oval transitional pipe segment (3) external diameter and the ratio of short axle are 1.1~2.5.