CN219713651U

CN219713651U - Condenser pipe of low water resistance

Info

Publication number: CN219713651U
Application number: CN202320724861.9U
Authority: CN
Inventors: 林格瑋; 苏春龙; 武震国
Original assignee: Suzhou New Taitong Fin Tube Co ltd
Current assignee: Suzhou New Taitong Fin Tube Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-09-19
Anticipated expiration: 2033-04-04

Abstract

The utility model discloses a low-water resistance condenser tube which comprises a tube body, a plurality of fins arranged on the outer surface of the tube body and internal teeth arranged on the inner surface of the tube body, wherein a plurality of through liquid passing parts are arranged on the internal teeth along the axial direction of the internal teeth. The utility model reduces the flowing resistance of liquid and increases the contact area between the liquid and the internal teeth by arranging the through liquid passing part on the internal teeth, thereby improving the heat exchange efficiency. The fins are arranged on the outer surface of the tube body and are formed by a plurality of sub-fins, the sub-fins are outwards bent, the contact area between the refrigerant and the fins is increased through the sub-fins, and meanwhile, the fins are arranged into a bent structure, so that the refrigerant condensed into a liquid state can quickly slide along the sub-fins, and heat exchange is promoted. In addition, channels which are communicated with the outer surface of the tube body are formed between the adjacent fins through the sub-fins, so that the refrigerant can be in direct contact with the surface of the tube body, heat exchange is further promoted, and heat exchange efficiency is improved.

Description

Condenser pipe of low water resistance

Technical Field

The utility model relates to the field of heat exchange tubes, in particular to a low-water-resistance condensing tube.

Background

With rapid development of refrigeration and air conditioning technologies, the design of the condenser tube is continuously updated. The working principle of the condenser tube is as follows: flowing a cryogenic fluid, typically water, in the tube; the outside of the tube is a gaseous refrigerant; after the gaseous refrigerant outside the tube contacts the tube wall, phase change occurs, condensed liquid is formed, latent heat is released, and heat exchange is carried out with low-temperature fluid in the tube.

In order to reduce the heat resistance and enhance the heat exchange in the pipe, a common method is to machine a thread-shaped inner rib in the pipe. The disturbance of fluid in the pipe is enhanced and the fluid heat transfer boundary layer is destroyed by the internal thread-shaped internal rib of the pipe, however, the internal rib can certainly increase the resistance of water passing through the pipe, can influence the flow of liquid and simultaneously increase the energy consumption required by the flow of water.

Disclosure of Invention

Aiming at the defects existing in the prior art, the main purpose of the utility model is to overcome the defects of the prior art and discloses a low-water-resistance condenser tube which comprises a tube body, a plurality of fins arranged on the outer surface of the tube body and internal teeth arranged on the inner surface of the tube body, wherein a plurality of through liquid passing parts are arranged on the internal teeth along the axial direction of the internal teeth.

Further, the liquid passing part is a groove which is opened inwards in the radial direction.

Further, the fins include at least two sub-fins, and the sub-fins are bent outward.

Further, the bending angle of the sub-fins is 45-70 degrees.

Further, four sub-fins are arranged.

Further, gaps are arranged between the adjacent sub-fins, and the gaps are 0.1mm-0.2mm.

The utility model has the beneficial effects that:

the utility model reduces the flowing resistance of liquid and increases the contact area between the liquid and the internal teeth by arranging the through liquid passing part on the internal teeth, thereby improving the heat exchange efficiency. The fins are arranged on the outer surface of the tube body and are formed by a plurality of sub-fins, the sub-fins are outwards bent, the contact area between the refrigerant and the fins is increased through the sub-fins, and meanwhile, the fins are arranged into a bent structure, so that the refrigerant condensed into a liquid state can quickly slide along the sub-fins, and heat exchange is promoted. In addition, channels which are communicated with the outer surface of the tube body are formed between the adjacent fins through the sub-fins, so that the refrigerant can be in direct contact with the surface of the tube body, heat exchange is further promoted, and heat exchange efficiency is improved.

Drawings

FIG. 1 is a schematic view showing an expanded three-dimensional structure of a low water resistance condenser tube according to the present utility model;

FIG. 2 is a schematic perspective view of the other view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

the reference numerals are as follows:

1. tube body 2, fins 3, internal teeth 21, sub-fins 31 and liquid passing part.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

A condensation pipe with low water resistance, as shown in figures 1-3, comprises a pipe body 1, a plurality of fins 2 arranged on the outer surface of the pipe body 1 and internal teeth 3 arranged on the inner surface of the pipe body 1. Wherein, the internal teeth 3 are strip-shaped structures spirally wound on the inner wall of the pipe body 1. A plurality of through liquid passing parts 31 are arranged on the internal teeth 3 along the axial direction of the internal teeth; after the low-temperature fluid enters from one end of the pipe body 1, part of the fluid is disturbed along with the internal teeth 3 on the inner wall of the pipe body 1, part of the fluid passes through the liquid passing part 31, so that the liquid circulation quantity is increased, and meanwhile, the liquid disturbance is increased through the cooperation of the liquid passing part 31 and the internal teeth 3, so that the fluid heat transfer boundary is broken, and the heat transfer is promoted; in addition, the liquid passing portion 31 increases the contact area between the liquid and the inside of the tank 1, that is, increases the heat exchange area. Through the structure, through the additionally arranging liquid passing part 31 in the pipe, the flowing resistance of liquid is reduced, and meanwhile, the heat exchange effect is ensured by increasing the heat exchange area and increasing the liquid disturbance.

In one embodiment, as shown in fig. 1-3, the liquid passing portion 31 is a radially inwardly open groove. The groove structure facilitates the processing of the liquid passing part 31; in production, it is only necessary to pass a wire saw through the inner hole of the pipe body 1 and then cut the internal teeth 3 to form the liquid passing portion 31.

In one embodiment, as shown in fig. 1 to 3, in order to further improve the heat exchange efficiency, the fin 2 includes at least two sub-fins 21, and the sub-fins 21 are bent outwardly.

In the above embodiment, as shown in fig. 1 to 3, the bending angle of the sub-fins 21 is 45 ° -70 °. The fins 2 are formed by a plurality of sub-fins, and the sub-fins 21 are outwards bent to increase the space between the sub-fins 21 and increase the contact area between the refrigerant and the fins 2; in addition, the gaseous refrigerant condenses on the outer surface of the tube body 1 to form a liquid refrigerant, which can drip along the bent sub-fins 21 to promote the liquid refrigerant to leave the tube body 1.

In one embodiment, as shown in fig. 1-3, four sub-fins 21 are provided. The sub-fins between the adjacent fins 2 form channels so that other refrigerants can quickly contact the outer surface of the tube body 1, and heat resistance is reduced to improve heat exchange efficiency.

In one embodiment, a gap L of 0.1mm to 0.2mm is provided between adjacent sub-fins 21.

The foregoing is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model; modifications and equivalent substitutions are intended to be included in the scope of the claims without departing from the spirit and scope of the present utility model.

Claims

1. The utility model provides a condenser pipe of low water resistance, its characterized in that includes the body, sets up a plurality of fins of body external surface and set up the internal tooth of body internal surface, set up a plurality of logical liquid portions that link up on the internal tooth along its axial.

2. The low water resistance condenser tube of claim 1, wherein the liquid passing portion is a radially inwardly open groove.

3. The low water resistance condenser tube of claim 1, wherein said fins comprise at least two sub-fins, said sub-fins being outwardly curved.

4. A low water resistance condenser tube as claimed in claim 3, wherein the sub-fins have a bend angle of 45 ° -70 °.

5. A low water resistance condenser tube as claimed in claim 3, wherein four sub-fins are provided.

6. A low water resistance condenser tube as claimed in claim 3, wherein gaps are provided between adjacent said sub-fins, the gaps being 0.1mm to 0.2mm.