CN212158242U

CN212158242U - High-efficient multilayer microchannel heat exchanger

Info

Publication number: CN212158242U
Application number: CN201922212056.4U
Authority: CN
Inventors: 陈建东
Original assignee: Changzhou Aidier Refrigeration Tech Co ltd
Current assignee: Changzhou Aidier Refrigeration Tech Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-12-15
Anticipated expiration: 2029-12-11

Abstract

The utility model belongs to the technical field of the heat exchanger technique and specifically relates to a high-efficient multilayer microchannel heat exchanger. The heat exchanger comprises micro-channel flat tubes, fins and a collecting tube, wherein the fins are arranged between two adjacent micro-channel flat tubes, two ends of each micro-channel flat tube are communicated with the collecting tubes on two sides respectively, micro-channel single sheets are formed by the micro-channel flat tubes, the fins and the collecting tube, and two or more micro-channel single sheets are mutually parallel, overlapped and fixed through connecting parts. The utility model discloses a pass through law fence mechanical connection or the parallel stack of U pipe welded mode with multi-disc microchannel monolithic, compare copper pipe fin type heat exchanger volume littleer, light in weight, cost are lower, the heat transfer performance that it has satisfies the biggest refrigerating capacity in the large-scale refrigeration plant finite space.

Description

High-efficient multilayer microchannel heat exchanger

Technical Field

The utility model belongs to the technical field of the heat exchanger technique and specifically relates to a high-efficient multilayer microchannel heat exchanger.

Background

The micro-channel heat exchanger has the advantages of compact structure, high heat exchange efficiency, light weight, safe and reliable operation and the like, and is widely applied to the industries of air conditioners, automobiles and the like. The large-scale multi-microchannel heat exchanger mainly adopts a single-layer single-chip structure, and large-scale refrigeration equipment, such as refrigeration equipment for a large-scale data center, has larger heat exchange power, larger volume and higher cost if a copper tube fin type heat exchanger is used, and has the advantages that the original copper tube fin type heat exchanger of some large-scale refrigeration equipment is gradually replaced by the microchannel heat exchanger due to the factors of higher efficiency, smaller volume, low cost and the like compared with the copper tube fin type heat exchanger. Compared with a copper pipe fin type, the micro-channel heat exchanger has higher energy efficiency, but for the refrigerating efficiency of large-scale refrigerating equipment, more than hundreds of KW and even more than 1MW are needed mostly, if the requirement of the refrigerating efficiency can not be completely met by a conventional single-chip structure, the length and the width of the heat exchanger are increased by a common method, so that the heat dissipation area is increased, but the refrigerating equipment occupies a large field, and the equipment cost, the occupied area of a factory building and the like are increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a high-efficient multilayer micro-channel heat exchanger.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a high-efficient multilayer formula microchannel heat exchanger, includes microchannel flat pipe, fin and collecting pipe, and the fin setting is between two adjacent microchannel flat pipes, and each microchannel flat pipe's both ends communicate with both sides collecting pipe respectively, microchannel single piece is constituteed to microchannel flat pipe, fin and collecting pipe, and two or more microchannel single pieces are parallel to each other through adapting unit and are overlapped fixedly.

According to the utility model discloses a further embodiment, further include adapting unit is the flange, and the flange setting is on the pressure manifold, and the adjacent flange of fastening bolt connection is fixed with the parallel stack of microchannel monolithic, is provided with seal structure between the flange.

According to the utility model discloses a further embodiment, further include adapting unit is the U type pipe, and the welding is respectively on two adjacent monolithic collecting main of microchannel at U type pipe both ends.

According to the utility model discloses a further embodiment, further include set up the tube socket on the pressure manifold, install the business turn over pipe on the tube socket, business turn over each microchannel monolithic of pipe intercommunication.

According to the utility model discloses a further embodiment, further include be provided with the support on the pressure manifold, the bolt fastening sheet metal framework on the support.

According to the utility model discloses a further embodiment, further include the inboard sealing strip that is provided with all around of sheet metal frame.

According to the utility model discloses a still another embodiment, further include the junction between the layer between the microchannel single piece is provided with the apron that keeps out the wind.

According to another embodiment of the present invention, it further comprises that the connection loop between the microchannel monoliths is a single loop, a double loop or a multiple loop.

According to another embodiment of the present invention, it further comprises that the communication mode between the microchannel single sheets is series connection or parallel connection.

The beneficial effects of the utility model are that, this utility model discloses passing through flange mechanical connection or the parallel stack of U pipe welded mode with the multi-disc microchannel monolithic, it is littleer, light, the cost is lower to compare copper pipe fin type heat exchanger volume, and the heat transfer performance that it had satisfies the biggest refrigerating capacity in the large-scale refrigeration plant finite space.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the structure of the microchannel single sheet of the present invention;

FIG. 2 is a schematic diagram of a microchannel single plate according to the present invention;

fig. 3 is a schematic view of the installation structure of the fin of the present invention;

fig. 4 is a schematic side view of the flange connection of the present invention;

FIG. 5 is a schematic side view of the U-shaped tube welding of the present invention;

fig. 6 is a schematic view of the overall structure of the present invention.

In the figure, 1, a micro-channel flat tube, 2, a fin, 3, a collecting pipe, 4, a micro-channel single sheet, 5, a connecting part, 6, a flange, 7, a fastening bolt, 8, a sealing structure, 9, a U-shaped tube, 10, a tube seat, 11, an inlet and outlet tube, 12, a support, 13, a sheet metal frame, 14, a sealing strip and 15, and a wind shielding cover plate are arranged.

Detailed Description

As fig. 1 is the utility model discloses a microchannel monolithic's a structure sketch map, fig. 2 is the utility model discloses a microchannel monolithic's two sketch maps of structure, fig. 3 is the utility model discloses a mounting structure sketch map of fin, a high-efficient multilayer formula microchannel heat exchanger, including microchannel flat pipe 1, fin 2 and collecting pipe 3, fin 2 sets up between two adjacent microchannel flat pipe 1, each microchannel flat pipe 1's both ends communicate with both sides collecting pipe 3 respectively, microchannel flat pipe 1, fin 2 and collecting pipe 3 constitute microchannel monolithic 4, microchannel monolithic 4 is fixed through adapting unit 5 mutual parallel stack more than two or two, sets up tube socket 10 and support 12 on the collecting pipe 3.

Fig. 4 is the side structure diagram of the flange connection of the present invention, the connecting component 5 is a flange 6, the flange 6 is disposed on the collecting pipe 3, the fastening bolt 7 connects the adjacent flanges 6 to fix the micro-channel single sheet 4 in parallel, the sealing structure 8 is disposed between the flanges 6, and the sealing structure 8 is a sealing ring or a sealing gasket.

Fig. 5 is a schematic side view of the U-shaped pipe welded structure of the present invention, the connecting component 5 is a U-shaped pipe 9, and two ends of the U-shaped pipe 9 are welded to the collecting pipes 3 of two adjacent micro-channel single sheets 4 respectively.

As fig. 6 the utility model discloses an overall structure schematic diagram, set up tube socket 10 on the pressure manifold 3, install business turn over pipe 11 on the tube socket 10, business turn over pipe 11 communicates each microchannel monolithic 4, be provided with support 12 on the pressure manifold 3, bolt fastening panel beating frame 13 on the support 12, panel beating frame 13 inboard is provided with sealing strip 14 all around, junction between the microchannel monolithic 4 is provided with the apron 15 that keeps out the wind, connecting circuit between the microchannel monolithic 4 is single loop, two return circuits or multiloop, the intercommunication mode between the microchannel monolithic 4 is for establishing ties or parallelly connected.

The utility model discloses a theory of operation: the microchannel flat tubes 1, the fins 2 and the collecting tubes 3 form a microchannel single sheet 4, the folded fins 2 are arranged between every two adjacent microchannel flat tubes 1, and two ends of each microchannel flat tube 1 are respectively connected with the collecting tubes 3; two or more than two micro-channel single sheets 4 are connected in an interlayer mode through flanges 6 or welded through U-shaped pipes 9, a spacer is installed between the micro-channel single sheets 4, the flanges 6 are arranged at the collecting pipes 3 of the adjacent micro-channel single sheets 4, a sealing structure 8 is arranged on the inner side of each flange 6, each sealing structure 8 is a sealing ring or a sealing gasket, and the flanges 6 are fixed through fastening bolts 7, so that the micro-channel single sheets 4 are combined to form the whole body of the heat exchanger; the welding of the U-shaped pipe 9 is to weld the two ends of the U-shaped pipe 9 on the collecting pipes 3 of the two adjacent micro-channel single sheets 4 respectively; a pipe seat 10 is arranged at the collecting pipe 3 of the micro-channel single sheet 4, an inlet pipe 11 and an outlet pipe 11 are connected to the pipe seat 10, and the inlet pipe 11 and the outlet pipe 11 can be copper pipes, aluminum pipes or stainless steel pipes; the support 12 is arranged on the collecting pipe 3 of the micro-channel single sheet 4, the metal plate frame 13 is fixed on the support 12 through bolts, the stability and firmness of the micro-channel single sheet 4 after being connected with the micro-channel single sheet 4 are further ensured, the sealing strips 14 are arranged on the periphery of the metal plate frame 13, and the wind shielding cover plate 15 is arranged at the interlayer connection position of the micro-channel single sheet 4, so that the sealing performance of circulating wind between the micro-channel single sheets 4 is ensured; compared with a copper tube fin type heat exchanger, the multilayer micro-channel heat exchanger is smaller in size, lighter in weight and lower in cost, is suitable for cooling of an evaporator and heat dissipation of an outdoor condenser, and is suitable for various refrigeration equipment and engineering machinery such as a data center, a machine room air conditioner and a central air conditioner.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A high-efficiency multilayer micro-channel heat exchanger comprises micro-channel flat tubes (1), fins (2) and collecting tubes (3), wherein the fins (2) are arranged between two adjacent micro-channel flat tubes (1), two ends of each micro-channel flat tube (1) are respectively communicated with the collecting tubes (3) on two sides, the high-efficiency multilayer micro-channel heat exchanger is characterized in that micro-channel single sheets (4) are formed by the micro-channel flat tubes (1), the fins (2) and the collecting tubes (3), two or more micro-channel single sheets (4) are mutually parallel and fixedly overlapped through connecting parts (5), the connecting parts (5) are flanges (6), the flanges (6) are arranged on the collecting tubes (3), fastening bolts (7) are connected with adjacent flanges (6) to parallelly fixedly overlap the micro-channel single sheets (4), sealing structures (8) are arranged between the flanges (6), the connecting parts (5) are U-shaped tubes (9), the two ends of the U-shaped pipe (9) are respectively welded on the collecting pipes (3) of the two adjacent micro-channel single sheets (4), a support (12) is arranged on each collecting pipe (3), a sheet metal frame (13) is fixed on each support (12) through bolts, and sealing strips (14) are arranged on the periphery of the inner side of each sheet metal frame (13).

2. The efficient multilayer micro-channel heat exchanger as claimed in claim 1, wherein the header pipe (3) is provided with a pipe seat (10), the pipe seat (10) is provided with an inlet and outlet pipe (11), and the inlet and outlet pipe (11) is communicated with each micro-channel single sheet (4).

3. The high-efficiency multi-layer micro-channel heat exchanger as claimed in claim 1, wherein a wind shielding cover plate (15) is arranged at the interlayer connection between the micro-channel single sheets (4).

4. The high-efficiency multilayer microchannel heat exchanger as claimed in claim 1, wherein the connecting loop between the microchannel single sheets (4) is a single loop, a double loop or a multi loop.

5. The high-efficiency multilayer microchannel heat exchanger as claimed in claim 1, wherein the microchannel single sheets (4) are communicated in series or in parallel.