KR200169554Y1 - Pipe for heat exchanger - Google Patents

Abstract

The present invention relates to pipes used in heat exchangers such as evaporators and condensers. Conventional heat exchanger pipes have a small contact area with the cooling or radiating medium flowing inside the pipe and an external evaporation or condensation medium of the pipe, resulting in poor heat exchange efficiency and fins contacting the evaporation or condensation medium outside the pipe. Each of them is symmetrically formed with the same number, so that concentrated heat exchange in one direction is not possible, which makes it impossible to perform concentrated cooling or heat dissipation and cooling and heating.

Therefore, the present invention is integrally formed so that several inner heat transfer fins 2 in the longitudinal direction of the inner periphery of the pipe body 1 formed of the hollow tube body protrude inwardly in proximity to the center of the pipe body 1 in the radial direction. The first outer heat transfer fin 3 is formed integrally with the outer side of one side of the pipe body 1 in a longitudinal direction so as to protrude outward, and the second side thereof has a plurality of second, third, and fourth sides in the longitudinal direction. The outer heat transfer fins 3A, 3B, and 3C are integrally formed to protrude outward, thereby increasing the contact area with the cooling or radiating medium flowing into the pipe body and the contact area with the evaporation or condensation medium outside the pipe body. Not only can the efficiency be more improved, but the concentrated heat exchange is carried out, which has the effect of performing intensive cooling or heat dissipation and cooling and heating.

Description

Heat Exchanger Pipes {PIPE FOR HEAT EXCHANGER}

The present invention relates to a pipe used for a heat exchanger such as an evaporator and a condenser forming a refrigeration cycle, and more particularly, the heat exchange between the cooling or radiating refrigerant flowing into the pipe and the evaporating or condensing refrigerant flowing out of the pipe is more efficiently performed. The present invention relates to a pipe for a heat exchanger that allows for intensive heat exchange.

In general, the refrigeration cycle mechanically performs pressure control and vaporization control to continuously cool and cool the refrigerant gas by compressing, condensing, expanding and evaporating. That is, Figure 3 shows a circuit configuration of a general general refrigeration cycle, which is a compressor 20 for compressing a refrigerant into a high-temperature, high-pressure gas refrigerant state, and the high-temperature, high-pressure gas refrigerant is a high-pressure liquid refrigerant state similar to the outside temperature A condenser 21 for exchanging heat with the outside temperature of the furnace, an expansion valve 22 for expanding to a low pressure and a low pressure while converting the high pressure liquid refrigerant into a low pressure liquid refrigerant by resistance, and the low temperature and low pressure refrigerant The evaporator 23 converts the low temperature and low pressure refrigerant into gaseous refrigerant while absorbing heat.

In addition, the heat exchangers such as the condenser 21 and the evaporator 23 are connected by several pipes to allow the refrigerant to pass therethrough, and FIG. 4 is a perspective view showing an example of a conventional heat exchanger pipe. As shown in the drawing, the heat exchanger pipe 10 has a hollow circular cross-sectional structure like a normal pipe. However, the conventional heat exchanger pipe 10 has a hollow circular cross-sectional structure, as described above, and the heat transfer area is small, which reduces heat exchange efficiency due to contact with outside air, and manufactures and installs a separate heat dissipation fin to compensate for this. As well as the increase of the workmanship, there was a problem that causes the inefficiency of the work decrease productivity.

Accordingly, the present applicant has proposed Utility Model Registration Application No. 97-35824 (97.12.5) 'Freezer Pipe' in order to solve the conventional problems as described above, as shown in FIG. same.

That is, the pipe 100 for the refrigerating apparatus mainly draws or extrudes aluminum having excellent thermal conductivity and strong corrosion resistance, which has a hollow elliptic cross-sectional structure, and has several protrusions in the inner axial direction thereof. 110 is formed, and a pair of pins 120 are formed to be symmetrical with each other in the major axis direction of the outer circumference.

The conventional pipe for a refrigeration apparatus 100 has a fin formed on the outer periphery of the pipe 100 as well as the contact area with the refrigerant flowing into the pipe 100 is increased by the protrusions 110 formed on the inner periphery. By 120, the contact area with the evaporation or condensation medium outside the pipe 100 is increased to improve the heat exchange efficiency.

However, since the protruding length of the protrusion formed on the inner circumference is short, the contact area with the refrigerant flowing into the pipe is small, and fins are formed on both sides of the outer surface of the pipe alone, so it is impossible to maximize the heat exchange efficiency. there was. In addition, as described above, the fins are mutually symmetrically formed on both sides of the outer surface of the pipe in the same number, so that concentrated heat exchange in one direction can not be achieved, and thus, intensive cooling, heat dissipation, and cooling. There was a problem that heating could not be carried out.

Therefore, the present invention was devised to solve the conventional problems as described above, and its purpose is to allow a concentrated heat exchange in one direction while having a sufficient contact area with the cooling or heat radiating medium flowing into the pipe. have.

In order to achieve the object of the present invention several inner insulating pins in the longitudinal direction in the inner peripheral portion of the pipe body formed of a hollow tube body is integrally formed so as to protrude inward in proximity to the center of the pipe body in the radial direction, the pipe body The first outer heat conduction fin is formed integrally to protrude outwardly on one side of the outer side of the longitudinal direction, the second side of the plurality of second heat conduction fins integrally formed so as to protrude outwardly in the longitudinal direction Provided is a pipe for a heat exchanger, characterized in that.

1 is a perspective view showing a cross-sectional structure of a pipe for a heat exchanger according to the present invention.

Figure 2 is a perspective view of a heat exchanger showing a state of use of the present invention.

3 is a general refrigeration cycle circuit diagram.

Figure 4 is a perspective view showing an example of a conventional heat exchanger pipe.

5 is a perspective view showing another example of a conventional heat exchanger pipe.

* Explanation of symbols for the main parts of the drawings

1: pipe body 2: inner heating fin

3,3A, 3B, 3C: 1st, 2nd, 3rd and 4th outer heat transfer fin

4,4A: header

Hereinafter, the structure of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a cross-sectional structure of a pipe for a heat exchanger according to the present invention, as shown in the present invention is formed as a hollow pipe body 1 as usual, the inner peripheral portion of the pipe body (1) There are several inner heat transfer fins 2 are formed to protrude inward close to the center of the pipe body (1). In addition, the inner heat transfer fins 2 are formed to protrude inwardly in the form of concentric radiation to a position proximate to the center at intervals in the longitudinal direction of the pipe body 1, and are formed in a plate shape having a predetermined area.

In addition, the outer side of one side of the pipe body 1, that is, the upper end of the pipe body 1 in FIG. 1, the first outer heat transfer fin 3 formed in a plate shape of a predetermined area along the longitudinal direction is integrally projected outwardly. The other side thereof, that is, on both sides and the lower end of the pipe body 1 in Figure 1 is formed with a plurality of second, third, fourth outer heat transfer fins (3A) (3B) (3C) protruding downward integrally. .

In more detail, the second outer heat fin 3A and the fourth outer heat fin 3C are symmetrically extended downward from both sides of the pipe body 1, and the third outer heat fin 3B. ) Is integrally formed on the middle pipe body (1) between the second outer heat transfer fin (3A) and the fourth outer heat transfer fin (3C) in a vertical line, the pipe body (1) and the inner heat transfer fin (2) ) And the first, second, third and fourth outer heat transfer fins (3) (3A) (3B) (3C) are integrally molded together by drawing or extrusion.

Figure 2 is a perspective view of a heat exchanger showing a state of use of the present invention, as shown in the present invention is connected to a plurality of pipe body (1) between a pair of header (Header) (4) (4A) evaporator Or the heat exchanger such as a condenser, the header (4) (4A) is formed of a hollow cylinder, the inlet or outlet is formed, respectively, when the medium of high temperature, high pressure or low temperature, low pressure flows into the inlet side The medium flows into the pipe body 1 connected between the headers 4 and 4A and exchanges heat with the evaporation or condensation medium around the outside.

In addition, the heat exchange by the pipe body 1, the heat transfer fins (2) formed on the inner periphery of the pipe body 1 is in contact with the cooling or heat-dissipating medium flowing into the pipe body (1), the latent heat of these media To the first, second, third, and fourth outer heat transfer fins 3, 3A, 3B, and 3C formed on the outer side of the pipe body 1, and the first, second, third and fourth outer heat transfer fins. (3) (3A) (3B) (3C) is in contact with the evaporation or condensation medium outside the pipe body 1 is made of heat exchange, wherein the first outer heat transfer fin (3) is one of the pipe body (1) It is formed on the side alone, the second, third, fourth outer heat transfer fins (3A) (3B) (3C) are concentrated on the other side of the first outer heat transfer fin (3), the concentrated heat exchange is made will be.

As described above, the present invention has a plurality of inner heat transfer fins having a relatively long protruding length formed on the inner circumference of the hollow pipe body to increase the contact area with the cooling or heat dissipating refrigerant flowing into the pipe body, and further, the inner heat transfer fins. The latent heat transferred through the first, second, third, and fourth outer heat transfer fins formed on the outer surface of the pipe body may be heat exchanged with the external evaporation or condensation refrigerant of the pipe body, thereby improving heat exchange efficiency. In addition, this has the effect of further increasing cooling, heat dissipation, and cooling and heating efficiency.

In addition, the first outer heat transfer fin is formed solely on one side of the outer surface of the pipe body, and on the other side thereof by forming a plurality of the second, third, and fourth outer heat transfer fins, intensive cooling and heat dissipation and cooling by intensive heat exchange. It will have the effect of heating.

Claims (1)

Several inner heat transfer fins 2 are integrally formed so as to protrude inwardly closer to the center of the pipe body 1 in the longitudinal direction on the inner peripheral edge of the pipe body 1 formed of a hollow tube body, and the pipe body (1) is formed integrally so that the first outer heat transfer fin (3) in the longitudinal direction on one side of the outer surface of the (1), and the other side of the plurality of second, third, fourth outer heat transfer fins in the longitudinal direction ( A heat exchanger pipe, characterized in that the 3A) (3B) (3C) is integrally formed to protrude outward.