CN105387760A - Heat exchange reinforcement air conditioner - Google Patents

Abstract

The invention discloses a heat exchange reinforcement air conditioner. A heat exchanger comprises a heat exchange pipe. The heat exchange pipe comprises round pipe segments. The round pipe segments are connected with oval pipe segments through oval transition segments. All the round pipe segments are equal in length. All the oval pipe segments are equal in length. The cross angle of section oval long axes of every two adjacent oval pipe segments ranges from 15 degrees to 90 degrees. The cross section of the oval transition pipe segments is in the shape of a standard oval or the shape similar to an oval or the shape of a flat round formed by two straight lines and two arcs or the shape of a symmetric and approximately symmetric flat round or round formed by fitting a plurality of segments of arc lines. All the oval transition pipe segments are equal in length. Round pipe connector segments are arranged at the two ends of the heat exchange pipe. The inner walls of the round pipe connector segments are smooth. The inner diameter of the round pipe connector segments is equal to that of the round pipe segments. The heat exchange reinforcement air conditioner is simple in structure, balance of a speed field and a temperature gradient field is effectively and reasonably coordinated, and the energy saving and environment protecting efficiency is high.

Description

A kind of heat exchange strengthens air-conditioning

Technical field

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

Background technology

Heat transfer enhancing technology also can reach energy-conservation object because can improve heat transfer rate, is widely used in daily life.Heat transfer enhancing technology is mainly divided into initiatively enhancing and passive enhancing technology.The former refers to the heat trnasfer enhancing technology needed from external world's input energy, as electric-field enhancing, magnetic field strengthen, vibrate enhancing technology etc.; The latter refers to the heat trnasfer enhancing technology not needing outside energy, is therefore more easily applied in the middle of engineering.Passive enhancing technology generally includes insert, eddy flow (turbulent flow) generator etc. in extended surface (fin), pipe.Passive enhancing technology is widely used, but still there is a common problem, and while namely heat trnasfer strengthens, flow resistance increase is more, is unfavorable for energy-conservation, thus hinders these technology and be applied more broadly in each engineering field.

Therefore those skilled in the art endeavour and a kind of Novel hot exchanging tube different with the heat transfer reinforced pipe of routine of exploitation.Transmit the new method " field coordination principle " of enhancing from the collaborative angle raiser of fluid velocity field and temperature gradient field, namely improve the collaborative e-commerce of field, just can strengthen heat transfer under resistance increases less condition.The present invention, according to this principle, is that Guan Liuzhong can form Radial Flow, just significantly can improves the collaborative degree of velocity field and temperature gradient field, and then strengthens heat transfer, also reaches energy-conservation effect simultaneously.

Summary of the invention

Because the above-mentioned defect of prior art, it is high that technical problem to be solved by this invention is to provide a kind of heat transfer efficiency, and structure is simple, the heat-exchange tube of energy-conserving and environment-protective.

For achieving the above object, the invention provides a kind of heat exchange and strengthen air-conditioning, its heat exchanger comprises heat exchanging pipe, and this heat exchanging pipe comprises pipe section, and this pipe section is connected with oval pipeline section by oval changeover portion.Each pipe section Length discrepancy; Each oval pipeline section Length discrepancy; The cross section transverse A intersecting angle C of two adjacent oval pipeline sections is 15 ° ~ 90 °; The shape of cross section of oval transitional tubing piece is the oblateness or the symmetry of multistage camber line matching and the oblateness of near symmetrical or circle that standard ellipse or sub-elliptical or two straight lines add that two circular arcs form; Each oval transitional pipe segment Length discrepancy.The two ends of this heat exchanging pipe are provided with Conduit Joint section; The inner wall smooth of Conduit Joint section; Conduit Joint section is identical with the internal diameter d of pipe section, and pipe section is connected by oval changeover portion with in the middle of oval pipeline section successively periodic arrangement.

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

Preferably, the inner surface of described pipe section, described oval pipeline section and described oval transitional pipe segment and outer surface are thread surface.

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

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

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

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

Detailed description of the invention

Below in conjunction with drawings and Examples, the invention will be further described:

As shown in Figure 1 and Figure 2, a kind of heat exchange strengthens air-conditioning, and its heat exchanger comprises heat exchanging pipe 5, and this heat exchanging pipe 5 comprises pipe section 1; This pipe section 1 is connected with oval pipeline section 2 by oval changeover portion 3; Each pipe section 1 can be isometric or Length discrepancy; Each oval pipeline section 2 can be isometric or Length discrepancy.The cross section transverse A intersecting angle C of two adjacent oval pipeline sections 2 is 15 ° ~ 90 °, and this angle is to produce larger resistance when increasing liquid flow in pipe.The shape of cross section of oval transitional pipe segment 3 is the oblateness or the symmetry of multistage camber line matching and the oblateness of near symmetrical or circle that standard ellipse or sub-elliptical or two straight lines add that two circular arcs form; Each oval transitional pipe segment 3 can be isometric or Length discrepancy.The two ends of this heat exchanging pipe 5 arrange Conduit Joint section 4; The inner wall smooth of described Conduit Joint section 4, can better seal when this smooth inwall is to install; Conduit Joint section 4 is identical with the internal diameter of pipe section 1.

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

Inner surface and the outer surface of pipe section 1, oval pipeline section 2 and oval transitional pipe segment 3 are thread surface, and such pipeline adds the contact surface of heat trnasfer, increase heat exchanger effectiveness.Fig. 3 is the distributed architecture schematic diagram of liquid flow in oval pipeline section.

More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technical staff in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.

Claims (2)

1. heat exchange strengthens an air-conditioning, and its heat exchanger comprises heat exchanging pipe (5); It is characterized in that: described heat exchanging pipe comprises pipe section (1); Described pipe section (1) is connected with oval pipeline section (2) by oval changeover portion (3); Each described pipe section (1) Length discrepancy; Each described oval pipeline section (2) Length discrepancy; The cross section transverse intersecting angle of two adjacent described oval pipeline sections (2) is 15 ° ~ 90 °; The shape of cross section of described oval transitional pipe segment (3) is the oblateness or the symmetry of multistage camber line matching and the oblateness of near symmetrical or circle that standard ellipse or sub-elliptical or two straight lines add that two circular arcs form; Each described oval transitional pipe segment (3) Length discrepancy; The two ends of described heat exchanging pipe (5) are provided with Conduit Joint section (4); The inner wall smooth of described Conduit Joint section (4); Described Conduit Joint section (4) is identical with the internal diameter of described pipe section (1); Inner surface and the outer surface of described pipe section (1), described oval pipeline section (2) and described oval transitional pipe segment (3) are thread surface.

2. heat exchange as claimed in claim 1 strengthens air-conditioning, it is characterized in that: the described length of pipe section (1) and the ratio of its internal diameter are 0.5 ~ 10; The ratio of the length of described oval pipeline section (2) and the internal diameter of described pipe section (1) is 1 ~ 10; The described major axis of oval transitional pipe segment (3) external diameter and the ratio of minor axis are 1.1 ~ 2.5.