CN211204966U

CN211204966U - Novel tubular micro-channel heat exchanger

Info

Publication number: CN211204966U
Application number: CN201922432235.9U
Authority: CN
Inventors: 徐雅岚
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-07
Anticipated expiration: 2029-12-30

Abstract

The utility model belongs to the technical field of the heat exchange, a novel tubular microchannel heat exchanger is related to, include: the device comprises a U-shaped groove, a U-shaped groove sealing plate, microchannel tubes, fins and an outer sealing plate, wherein the outer end of the U-shaped groove is welded with the U-shaped groove sealing plate to form a liquid collecting tube, the liquid collecting tubes at two ends are provided with a liquid inlet and a liquid outlet, a plurality of rows of microchannel tube holes are arranged on the U-shaped groove sealing plate in parallel, the microchannel tubes are communicated with the liquid collecting tubes through the microchannel tube holes, two sides of the U-shaped groove are sealed through the outer sealing plate, and the fins are sleeved on the microchannel tubes corresponding to the microchannel tube holes and are. According to the utility model discloses a novel tubular microchannel heat exchanger reduces the difference in temperature and the time of intraductal heat exchange through reducing the pipe diameter, improves exchange efficiency, and outside of tubes, improves heat exchange efficiency through the heat transfer area who increases and wind contact to novel tubular microchannel heat exchanger heat exchange capacity and lift system's energy conversion efficiency has been improved.

Description

Novel tubular micro-channel heat exchanger

Technical Field

The utility model belongs to the technical field of the heat exchange, a novel tubular microchannel heat exchanger is related to, but wide application in air conditioner, refrigerator, to some equipment and the place that takes place cold and hot exchange such as part heat dissipation, waste heat recovery.

Background

The microchannel heat exchanger has stronger heat exchange capability, and at present, two types of air-cooled microchannel heat exchangers are commonly used in the market, one is an aluminum parallel flow microchannel heat exchanger, and the other is a microchannel light tube heat exchanger (also called as a light tube type micro microchannel heat exchanger).

At present, the inner diameter of a copper pipe is larger than that of the copper pipe and is more than 7MM, and the heat exchange efficiency is low. The micro-channel light tube heat exchanger has insufficient fin area for exchanging with air, and the heat exchange efficiency is low.

As for the aluminum parallel flow micro-channel heat exchanger, the heat exchanger consists of the porous micro-channel aluminum flat tubes and the fins, because the heat exchange surface area of the porous micro-channel aluminum flat tubes contacted with air is small, the heat exchange efficiency is low, dense hemp fins are needed to increase the heat exchange surface area, but because the fins are too dense, water and frost are easy to form, and the heat exchange effect is influenced.

For the light pipe type micro-channel heat exchanger, the surface area is more than 3 times larger than that of the aluminum parallel flow for the same diameter of the micro-channel, but the heat exchange surface area is much smaller due to no fins, so that the heat exchange capacity is influenced. The inner diameter of the micro channel of the light pipe type micro channel heat exchanger is too small, so that the internal resistance of the system is very large, the energy conversion efficiency of the system is influenced, and the light pipe type micro channel heat exchanger is only suitable for a changing scene with small heat exchange amount and is not practical in a system with large heat exchange amount. In addition, because of the microchannel light tube, when wind blows over the heat exchanger, the microchannel tube is easy to deform, thereby affecting the heat exchange efficiency and the service life of the heat exchanger.

SUMMERY OF THE UTILITY MODEL

Problem (A)

In view of the above, there is a need to provide a novel tubular microchannel heat exchanger, which can improve the heat exchange capability and the energy conversion efficiency of the system.

(II) technical scheme

According to the utility model discloses an aspect provides a novel tubular microchannel heat exchanger, include: the device comprises a U-shaped groove, a U-shaped groove sealing plate, microchannel tubes, fins and an outer sealing plate, wherein the outer end of the U-shaped groove is welded with the U-shaped groove sealing plate to form a liquid collecting tube, the liquid collecting tubes at two ends are provided with a liquid inlet and a liquid outlet, a plurality of rows of microchannel tube holes are arranged on the U-shaped groove sealing plate in parallel, the microchannel tubes are communicated with the liquid collecting tubes through the microchannel tube holes, two sides of the U-shaped groove are sealed through the outer sealing plate, and the fins are sleeved on the microchannel tubes corresponding to the microchannel tube holes and are.

According to the utility model discloses an exemplary embodiment, parallel arrangement has a plurality of semicylinder hollow tubes on the fin, the opening direction of the hollow tube of semicylinder is opposite setting in turn.

According to the utility model discloses an exemplary embodiment is equipped with a plurality of tripe holes on the fin between the adjacent semicylinder hollow tubes.

According to an exemplary embodiment of the present invention, the louver hole direction (i.e. the louver hole length direction) is parallel to the microchannel tubes or perpendicular to the microchannel tubes.

According to an exemplary embodiment of the present invention, the inner diameter of the microchannel tube is 0.2-3 mm.

According to the utility model discloses an exemplary embodiment, inlet and liquid outlet adopt the homonymy to set up.

According to the utility model discloses an exemplary embodiment, inlet and liquid outlet adopt the heteropleural setting.

According to the utility model discloses an exemplary embodiment, the part of U type groove protrusion U type groove closing plate is equipped with a plurality of fin constant head tanks, and U type groove can link firmly in the fin through the fin constant head tank.

According to the utility model discloses an exemplary embodiment, the outer closing plate integrated into one piece that both ends U type groove one side set up.

(III) advantageous effects

According to the utility model discloses a novel tubular microchannel heat exchanger reduces the difference in temperature and the time of intraductal heat exchange through reducing the pipe diameter, improves exchange efficiency, and outside of tubes, improves heat exchange efficiency through the heat transfer area who increases and wind contact to heat exchange capacity and lift system's energy conversion efficiency has been improved.

Drawings

Fig. 1 is a schematic structural diagram of a novel tubular microchannel heat exchanger according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a U-shaped groove according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a U-shaped groove sealing plate according to an embodiment of the present invention;

fig. 4 is a top view of a fin according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fin according to an embodiment of the present invention.

The reference numerals are explained below:

1: a U-shaped groove; 2: a fin; 21: a louver hole; 22: a semi-cylindrical hollow pipe; 3: an outer sealing plate; 4: a liquid inlet; 5: a liquid outlet; 6: a U-shaped groove sealing plate; 61: microchannel tubing pores.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and the corresponding embodiments, wherein the following embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.

As shown in fig. 1, the novel tubular microchannel heat exchanger according to the embodiment of the present invention includes: u-groove 1, U-groove seal plate 6 (not shown in fig. 1), microchannel tubes, fins 2, and outer seal plate 3. Specifically, the outer end of the U-shaped groove 1 is welded with a U-shaped groove sealing plate 6 to form a liquid collecting pipe, wherein the inner diameter of the micro-channel pipe is 0.4-1 mm.

The two sides of the U-shaped groove 1 are sealed through the outer sealing plate 3, the fins 2 are sleeved on the micro-channel tubes corresponding to each row of micro-channel tube holes 61 and can be fixedly connected with the micro-channel tubes, and the side surfaces of the U-shaped grooves 1 at the two ends are respectively provided with a liquid inlet 4 and a liquid outlet 5. As shown in fig. 1, two ends of the outer sealing plate 3 can respectively seal one side of the U-shaped groove 1 at two ends. Outer shrouding 3 can not only form sealedly to U type groove 1, can also play the supporting role to novel tubular microchannel heat exchanger simultaneously to strengthen novel tubular microchannel heat exchanger's heat dissipation function.

Although fig. 1 only shows that the liquid inlet 4 and the liquid outlet 5 are respectively arranged on different sides of the two-end U-shaped groove 1. It will be understood by those skilled in the art that the inlet port 4 and the outlet port 5 may be provided on the same side of the U-shaped groove 1 at both ends.

As shown in fig. 2, the U-shaped groove 1 may be a U-shaped plate.

As shown in fig. 3, a plurality of rows of microchannel tube holes 61 are arranged in parallel on the U-shaped groove sealing plate, and the microchannel tubes are communicated with a liquid collecting tube (i.e. a space formed by sealing the U-shaped groove 1, the U-shaped groove sealing plate 6 and the outer sealing plate 3 together) through the microchannel tube holes 61.

Fig. 4 and 5 show a fin structure according to an embodiment of the present invention. As shown in fig. 4, a plurality of semi-cylindrical hollow tubes 22 are arranged in parallel on the fin 2.

As shown in fig. 5, the opening directions of the semi-cylindrical hollow pipes 22 are alternately opposite. Meanwhile, a plurality of louver holes 21 are formed between the adjacent semi-cylindrical hollow pipes 22.

According to other embodiments of the present invention, the wings may be formed on both sides of the semi-cylindrical hollow pipes 22, and the wings of the adjacent semi-cylindrical hollow pipes 22 may be spaced apart without contacting each other.

According to the utility model discloses a still another embodiment, can overlap in proper order on every row of microchannel tube and establish a plurality of fins to spaced apart each other, mutual contactless between the adjacent fin on every row of microchannel tube.

It should be noted that, in order to stabilize the position of the fins 2, the part of the U-shaped groove 1 protruding out of the U-shaped groove sealing plate 6 may be provided with a plurality of fin positioning grooves. Meanwhile, the fins 2 can be perpendicular to the groove edges of the U-shaped grooves 1, and the fins 2 can also be arranged to form acute angles with the groove edges of the U-shaped grooves 1.

The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A novel tubular microchannel heat exchanger, its characterized in that, novel tubular microchannel heat exchanger includes: the device comprises a U-shaped groove, a U-shaped groove sealing plate, microchannel tubes, fins and an outer sealing plate, wherein the outer end of the U-shaped groove is welded with the U-shaped groove sealing plate to form a liquid collecting tube, the liquid collecting tubes at two ends are provided with a liquid inlet and a liquid outlet, a plurality of rows of microchannel tube holes are arranged on the U-shaped groove sealing plate in parallel, the microchannel tubes are communicated with the liquid collecting tubes through the microchannel tube holes, two sides of the U-shaped groove are sealed through the outer sealing plate, and the fins are sleeved on the microchannel tubes corresponding to the microchannel tube holes and are.

2. The novel tubular microchannel heat exchanger as claimed in claim 1, wherein the fin is provided with a plurality of semi-cylindrical hollow tubes in parallel, and the semi-cylindrical hollow tubes are alternately arranged in opposite opening directions.

3. The novel tubular microchannel heat exchanger of claim 2, wherein a plurality of louvres are provided in the fin between adjacent semi-cylindrical hollow tubes.

4. The novel tubular microchannel heat exchanger of claim 3, wherein the louver direction is parallel to the microchannel tubes or perpendicular to the microchannel tubes.

5. The novel tube microchannel heat exchanger of claim 1, wherein the microchannel tube has an inner diameter of 0.2 to 3 mm.

6. The novel tubular microchannel heat exchanger of claim 1, wherein the portion of the U-groove projecting beyond the U-groove seal plate is provided with a plurality of fin positioning slots.

7. The novel tubular microchannel heat exchanger as claimed in claim 1, wherein the outer sealing plate provided at one side of the U-shaped grooves at both ends is integrally formed.