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CN-224215932-U - Efficient evaporation heat exchange tube

CN224215932UCN 224215932 UCN224215932 UCN 224215932UCN-224215932-U

Abstract

The utility model relates to a high-efficiency evaporation heat exchange tube, which relates to the technical field of evaporation heat exchange tubes in air conditioners and refrigeration systems and solves the problem of how to improve the heat exchange efficiency of the evaporation heat exchange tube. The outer fin is formed by extending a material on the tube body along the radial direction of the tube body and spirally extending around the tube body on the outer surface of the tube body, and is integrally formed with the tube body, the section of the outer fin is Y-shaped, and a fin top groove is formed at the top end of the outer fin; one side of the outer fin is provided with a first channel in a penetrating way, and the other side of the outer fin is provided with a second channel in a penetrating way; the opening direction of the fin top groove is consistent with the trend of the first channel and the second channel, the top of the outer fin is provided with notches in a spacing state, and the inner surface of the pipe body is convexly provided with an internal thread rib which is integrally formed with the pipe body. Through the collaborative design of the outer fins, the channels and the internal thread ribs, the synchronous optimization of the heat exchange between the inside and the outside of the tube is realized, and the heat exchanger has light weight and high reliability.

Inventors

  • JIN LIWEN
  • ZHANG CHUNMING
  • Bao jiafeng
  • JING XIAOWEI
  • ZHANG SHENGQIANG

Assignees

  • 江苏萃隆精密铜管股份有限公司

Dates

Publication Date
20260508
Application Date
20250506

Claims (8)

  1. 1. The efficient evaporation heat exchange tube is characterized by comprising a tube body (1) and an outer fin (2) which is formed by extending a material on the tube body (1) along the radial direction of the tube body (1) and extending in a spiral state around the outer surface of the tube body (1) and is integrally formed with the tube body (1), wherein the cross section of the outer fin (2) is Y-shaped, a fin top groove (21) is formed at the top end of the outer fin (2), a first channel (3) is penetrated on one side of the outer fin (2), a second channel (4) is penetrated on the other side of the outer fin (2), the opening direction of the fin top groove (21) is consistent with the directions of the first channel (3) and the second channel (4), notches (22) are formed at the top of the outer fin (2) in a spacing state, and inner threads (5) integrally formed with the tube body (1) are convexly arranged on the inner surface of the tube body (1).
  2. 2. A high efficiency evaporative heat exchange tube according to claim 1, wherein the fin top recess (21) divides the top of the outer fin (2) into a first forked fin (23) and a second forked fin (24), the surface area of the first forked fin (23) being smaller than the surface area of the second forked fin (24), the lateral extension of the first forked fin (23) being smaller than the lateral extension of the second forked fin (24).
  3. 3. A high efficiency evaporative heat exchange tube according to claim 2, wherein the width of the first channel (3) is smaller than the width of the second channel (4), and the first channel (3) and the second channel (4) are both narrow at the top and wide at the bottom.
  4. 4. A high efficiency evaporative heat exchange tube according to claim 3, wherein the first channels (3) are located on the side of the first fork fins (23) and the second channels (4) are located on the side of the second fork fins (24).
  5. 5. A high efficiency evaporative heat exchange tube as defined in claim 3 wherein said second channel (4) is provided with fin-based sink slots (6).
  6. 6. A high efficiency evaporative heat exchange tube according to claim 1, wherein the cutouts (22) on adjacent outer fins (2) communicate to form secondary channels (7).
  7. 7. A high efficiency evaporative heat exchange tube according to claim 6, wherein the secondary channels (7) are in communication with the first channels (3), the second channels (4) and the fin roof grooves (21).
  8. 8. A high efficiency evaporative heat exchange tube according to claim 1, wherein the gap between adjacent ones of the internally threaded ribs (5) forms an internally threaded recess (51).

Description

Efficient evaporation heat exchange tube Technical Field The utility model relates to the technical field of evaporation heat exchange tubes in air-conditioning and refrigeration systems, in particular to a high-efficiency evaporation heat exchange tube. Background With the rapid development of the economic society, china rapidly becomes a world energy consumption large country, and the annual rise of energy production and consumption brings great pressure to the energy safety and environmental capacity of China, and brings great challenges to the sustainable development of the economic society of China. The evaporator is an important part of the central air conditioning unit, and the heat exchange efficiency of the evaporator directly influences the overall energy efficiency ratio of the unit. The evaporating pipe is a core component in the evaporator and is widely applied to the fields of refrigeration, air conditioning, chemical industry, food processing and the like. In recent years, in order to strengthen heat exchange, save cost and improve energy efficiency ratio, a plurality of methods are adopted to improve heat exchange efficiency, and internal pipes are also developed into double-side strengthened evaporation pipes with internal thread structures and three-dimensional low-rib structures outside the pipes from light pipes so as to improve heat exchange efficiency and unit performance of the evaporator. In the future, with the development of technologies such as intelligence and green manufacturing, the evaporating tube will play an important role in more fields. Disclosure of utility model The utility model aims to provide a high-efficiency evaporation heat exchange tube, which solves the problem of how to improve the heat exchange efficiency of the evaporation heat exchange tube. In order to achieve the above purpose, the utility model adopts the following technical scheme: The utility model provides a high-efficiency evaporation heat exchange tube which comprises a tube body and an outer fin, wherein the outer fin is formed by extending materials on the tube body along the radial direction of the tube body and extending in a spiral state around the tube body on the outer surface of the tube body and is integrally formed with the tube body, the cross section of the outer fin is Y-shaped, a fin top groove is formed at the top end of the outer fin, a first channel is formed on one side of the outer fin in a penetrating manner, a second channel is formed on the other side of the outer fin in a penetrating manner, the opening direction of the fin top groove is consistent with the directions of the first channel and the second channel, notches are formed at the top of the outer fin in a spacing state, and inner thread ribs integrally formed with the tube body are convexly arranged on the inner surface of the tube body. Further, the fin top grooves divide the top of the outer fin into a first fork fin and a second fork fin, the surface area of the first fork fin is smaller than that of the second fork fin, and the transverse extension length of the first fork fin is smaller than that of the second fork fin. Further, the width of the first channel is smaller than that of the second channel, and the first channel and the second channel are both narrow at the top and wide at the bottom. Further, the first channel is located on a first forked fin side and the second channel is located on a second forked fin side. Further, a fin bottom sink groove is formed in the second channel. Further, the cutouts on adjacent ones of the outer fins communicate to form secondary channels. Further, the secondary channel is in communication with the first channel, the second channel, and the fin roof groove. Further, the clearance between two adjacent internal thread ribs forms an internal thread groove. Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: The high-efficiency evaporation heat exchange tube has the advantages that the outer fins and the tube body are integrally formed, the contact thermal resistance between the outer fins and the tube body is eliminated, the outer fins are Y-shaped, the surface area of each fin is larger than that of a traditional rectangular or trapezoidal fin, and the contact area between the refrigerant and the fins is improved. The notches are formed in the tops of the outer fins in an interval mode, and the continuous outer fins are divided into a plurality of fin platforms, so that the heat exchange surface area is further increased, the weight of the tube can be reduced, the refrigerant on the outer surface of the tube is uniformly distributed, and the influence on the heat exchange effect caused by too thick liquid film or local dryness is avoided. The arrangement of the internal thread rib is beneficial to thinning the boundary layer of fluid in the pipe, enhancing the turbulence degree of the fluid in the pipe,