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CN-224202249-U - Microchannel heat exchanger

CN224202249UCN 224202249 UCN224202249 UCN 224202249UCN-224202249-U

Abstract

The utility model relates to the technical field of heat exchange, in particular to a microchannel heat exchanger, which comprises a heat exchange shell, a serpentine pipe, a feed inlet and a discharge outlet, wherein a microchannel heat exchange plate is arranged in the heat exchange shell, the serpentine pipe is arranged on the left side and the right side of the inside of the heat exchange shell, a rear arc-shaped shell is arranged at the top end of the rear side of the heat exchange shell, a front arc-shaped shell is arranged at the bottom end of the front side of the heat exchange shell, the feed inlet is arranged at the top of the serpentine pipe, and the discharge outlet is arranged at the bottom of the serpentine pipe.

Inventors

  • CHEN YUANHUA
  • BAI TIE

Assignees

  • 上海益鼎石化设备制造有限公司

Dates

Publication Date
20260505
Application Date
20250527

Claims (7)

  1. 1. The microchannel heat exchanger comprises a heat exchange shell (1) and is characterized by further comprising a snakelike material pipe (5), a feed inlet (6) and a discharge outlet (7), wherein a microchannel heat exchange plate (4) is arranged in the heat exchange shell (1), the snakelike material pipe (5) is arranged on the left side and the right side of the inside of the heat exchange shell (1), a rear arc-shaped shell (12) is arranged on the top of the rear side of the heat exchange shell (1), a front arc-shaped shell (14) is arranged on the bottom of the front side of the heat exchange shell (1), the feed inlet (6) is formed in the top of the snakelike material pipe (5), and the discharge outlet (7) is formed in the bottom of the snakelike material pipe (5).
  2. 2. The microchannel heat exchanger according to claim 1, wherein a medium inlet flange pipe (13) is provided at the rear side of the rear arc-shaped housing (12), and a medium outlet flange pipe (15) is provided at the front side of the front arc-shaped housing (14).
  3. 3. The microchannel heat exchanger as claimed in claim 1, wherein the top of the heat exchange housing (1) is provided with an upper cover (8), and the bottom of the heat exchange housing (1) is provided with a lower cover (10).
  4. 4. The microchannel heat exchanger as set forth in claim 3, wherein the bottom of the upper cover (8) and the top of the lower cover (10) are both provided with a partition plate (2), and the center of the partition plate (2) is provided with a heat exchange hole (3).
  5. 5. The microchannel heat exchanger as claimed in claim 4, wherein the top of the upper cover body (8) is provided with a heat exchange inlet flange pipe (9), and the bottom of the lower cover body (10) is provided with a heat exchange outlet flange pipe (11).
  6. 6. The microchannel heat exchanger as claimed in claim 1, wherein the left and right sides of the heat exchange housing (1) are provided with fixed risers (16), and the bottom of the side of the fixed risers (16) away from the heat exchange housing (1) is provided with a fixed cross plate (17).
  7. 7. The microchannel heat exchanger as set forth in claim 6, wherein the front and rear sides of the top of the fixed cross plate (17) are provided with fixed side plates (18), and one side of the fixed side plates (18) close to the heat exchange shell (1) is welded with the fixed vertical plates (16).

Description

Microchannel heat exchanger Technical Field The utility model relates to the technical field of heat exchange, in particular to a microchannel heat exchanger. Background The design and application of the heat exchanger are always core links in the fields of chemical industry, medicine and offshore petrochemical industry, the technical development of the heat exchanger is closely related to the industrial demand, the market scale of the heat exchanger is continuously enlarged along with the acceleration of the global industrialization process, and the industry is evolving towards the high-efficiency, intelligent and green directions. The common microchannel heat exchanger only comprises the heat exchange function, can exchange heat for the medium, but lacks the function of increasing the heat exchange duration, cannot guarantee the heat exchange rate, easily has the advantages that the duration of the medium passing through the heat exchanger is too fast, when the flow rate of the medium exceeds a design threshold value, the effective contact duration with the surface of a heat exchange plate is greatly shortened, the whole heat transfer efficiency of the device is directly weakened in the transient heat exchange process, and the heat exchange is insufficient, so that the heat exchange rate is influenced. Therefore, aiming at the technical problems that the micro-channel heat exchanger lacks the function of increasing the heat exchange duration, when the medium flow rate is over-limited, the effective contact time with the heat exchange plate is shortened due to the over-high flow rate, a short heat exchange process is formed, the heat transfer efficiency is directly reduced, and insufficient heat exchange is caused, the design of a novel micro-channel heat exchanger is needed. Disclosure of utility model In order to overcome the common micro-channel heat exchanger, the function of increasing the heat exchange duration is lacking, when the medium flow is over-limited, the effective contact time with the heat exchange plate can be shortened due to the over-high flow rate, a short heat exchange process is formed, the heat transfer efficiency is directly reduced, and the technical problem of insufficient heat exchange is caused. The technical scheme includes that the microchannel heat exchanger comprises a heat exchange shell, serpentine pipes, a feed inlet and a discharge outlet, wherein a microchannel heat exchange plate is arranged in the heat exchange shell, the serpentine pipes are arranged on the left side and the right side of the inside of the heat exchange shell, a rear arc-shaped shell is arranged at the top end of the rear side of the heat exchange shell, a front arc-shaped shell is arranged at the bottom end of the front side of the heat exchange shell, the feed inlet is formed in the top of the serpentine pipes, and the discharge outlet is formed in the bottom of the serpentine pipes. Preferably, the valve of the medium inlet flange pipe is opened to enable the medium to enter the heat exchange shell through the rear arc-shaped shell, then the medium enters the inside of the serpentine pipe through the feed inlet, the medium entering the inside of the serpentine pipe flows downwards and contacts with the outer wall of the micro-channel heat exchange plate in the flowing process, the path of the downward flow of the medium is enabled to be increased through the serpentine pipe, so that the contact time between the medium and the outer wall of the micro-channel heat exchange plate is prolonged, and therefore the medium can have enough time for heat exchange, and the function of prolonging the heat exchange time is achieved. Preferably, the rear side of the rear arc-shaped shell is provided with a medium inlet flange pipe, and the front side of the front arc-shaped shell is provided with a medium outlet flange pipe. Preferably, the top of the heat exchange shell is provided with an upper cover body, and the bottom of the heat exchange shell is provided with a lower cover body. Preferably, the bottom of the upper cover body and the top of the lower cover body are both provided with partition plates, and the centers of the partition plates are provided with heat exchange holes. Preferably, the top of the upper cover body is provided with a heat exchange inlet flange pipe, and the bottom of the lower cover body is provided with a heat exchange outlet flange pipe. Preferably, the left side and the right side of the heat exchange shell are provided with fixed vertical plates, and the bottom of one side, far away from the heat exchange shell, of the fixed vertical plates is provided with a fixed transverse plate. Preferably, the front side and the rear side of the top of the fixed transverse plate are provided with fixed side plates, and one side of the fixed side plates, which is close to the heat exchange shell, is welded with the fixed vertical plate. The utility model has the beneficial effects that: 1.