CN211695502U

CN211695502U - Novel parallel flow evaporator

Info

Publication number: CN211695502U
Application number: CN202020441224.7U
Authority: CN
Inventors: 刘家平
Original assignee: Dongguan Roco Auto Air Conditioner Co ltd
Current assignee: Dongguan Roco Auto Air Conditioner Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-10-16
Anticipated expiration: 2030-03-30

Abstract

The utility model provides a novel parallel flow evaporimeter, including being two sets of evaporation units that upper and lower interval set up, the evaporation unit is the rectangle setting, the evaporation unit is including the microchannel aluminum flat tube that is the equidistance and distributes, the fin is installed in the microchannel aluminum flat tube outside, the pressure manifold is all installed at both ends about the evaporation unit, the sideboard is all installed at both ends around the evaporation unit, two on the right side the connecting plate is installed to the pressure manifold rear end, the feed liquor connects and goes out the vapour and connect at both ends about the connecting plate is installed respectively, the feed liquor connects the outside and is connected with the feed liquor pipe, it is connected with out the steam pipe to go out the vapour and connect the outside, the feed liquor pipe is connected with the business turn over with going out the steam pipe end-to-end installation, and this evaporimeter makes the.

Description

Novel parallel flow evaporator

Technical Field

The utility model relates to a novel parallel flow evaporator.

Background

The evaporator is an important part in four major refrigeration parts, and low-temperature condensed liquid exchanges heat with external air through the evaporator, evaporates and absorbs heat, so that the refrigeration effect is achieved.

However, the existing evaporator fins are of an integrated structure, air has a large temperature difference in the processes of flowing in and out from two ends of the fins, and heat is transferred from a high temperature to a low temperature, so that large loss of heat inside is caused; most of the fins adopt U-shaped structures, so that condensed water is not easy to drain, and refrigerating capacity is affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a novel concurrent flow evaporimeter for the circulation of condensed liquid is smooth and easy, and refrigeration efficiency is high, and stable in structure is reliable.

The utility model discloses a realize like this, a novel parallel flow evaporimeter, including being two sets of evaporation units that upper and lower interval set up, the evaporation unit is the rectangle setting, the evaporation unit is including the microchannel aluminum flat tube that is the equidistance and distributes, the fin is installed in the microchannel aluminum flat tube outside, the pressure manifold is all installed at both ends about the evaporation unit, the sideboard is all installed at both ends around the evaporation unit, two on the right side the connecting plate is installed to the pressure manifold rear end, the feed liquor connects and goes out the vapour and connect at both ends about the connecting plate respectively, the feed liquor connects the outside and is connected with the feed liquor pipe, it is connected with out the steam pipe to go out the vapour and connect in the joint outside, the feed liquor pipe is connected with the business turn over.

Preferably, the two ends of the micro-channel flat aluminum tube are arranged in a sharp angle of 70 degrees, and the radiating fins are bent in a U shape.

Preferably, the right side of the collecting pipe is provided with a blocking sheet at the inner side of the middle part.

Preferably, a small splitter plate, a middle splitter plate and a large splitter plate are arranged in the left manifold; the large flow distribution sheet, the middle flow distribution sheet and the small flow distribution sheet are sequentially arranged along the flowing direction of the refrigerating liquid in the collecting pipe.

Preferably, pipe plugs are arranged at the two ends of the collecting pipe on the left side and at the front end of the collecting pipe on the right side.

Preferably, the front ends of the two right collecting pipes are communicated with each other.

Preferably, the cross section of the collecting pipe is rectangular.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the two groups of evaporation units are arranged at intervals up and down, the evaporation units are arranged in a rectangular shape, so that condensed liquid can be drained conveniently, the wind resistance is smaller, the internal loss of heat is small, the refrigeration efficiency is high, the small flow distribution sheet, the middle flow distribution sheet and the large flow distribution sheet are arranged in the collecting pipe, the condensed liquid is accurately distributed, the surface temperature difference of the evaporator is ensured to be smaller, and meanwhile, the heat exchange of the evaporator is more sufficient; the evaporation unit that sets up is including the microchannel aluminum flat tube that is the equidistance and distributes, and the fin is installed in the microchannel aluminum flat tube outside, and the pressure manifold is all installed at both ends about the evaporation unit, and the sideboard is all installed at both ends around the evaporation unit for overall structure is reliable and stable.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an overall structural diagram of a novel parallel flow evaporator provided by an embodiment of the invention;

fig. 2 is an exploded view of a novel parallel flow evaporator according to an embodiment of the present invention;

fig. 3 is an enlarged structural view of a micro-channel aluminum flat tube of a novel parallel flow evaporator provided by an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating the flow direction of the condensed liquid inside the micro-channel aluminum flat tube of the novel parallel flow evaporator provided by the embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-3, the present embodiment provides a novel parallel flow evaporator, which includes two sets of evaporation units 1 arranged at an interval from top to bottom, the evaporation units 1 are arranged in a rectangular shape, and the outside of the evaporation units 1 can absorb heat in air, so that condensed liquid flowing inside is evaporated, and the air can be cooled. Evaporation unit 1 is including the microchannel aluminum flat tube 2 that is the equidistance and distributes, and microchannel aluminum flat tube 2 adopts the refined aluminium bar, through hot extrusion, spout zinc anticorrosive treatment through the surface, and porous flat tubular material of thin wall, microchannel aluminum flat tube 2 adopts vertical level to arrange in this embodiment. The radiating fins 3 (fixed by adopting a welding mode) are installed on the outer sides of the micro-channel aluminum flat tubes 2, the heating area of the radiating fins 3 can be increased, and the refrigerating efficiency is improved. Collecting pipes 4 are respectively installed at the left end and the right end of the evaporation unit 1, and specifically, the micro-channel aluminum flat pipes 2 are welded and fixed with the collecting pipes 4 and are ensured to be communicated with each other. The sideboard 5 is all installed at both ends around the evaporation unit 1, and the equal pressure manifold 4 in 5 both ends of sideboard carries out welded fastening, guarantees that overall structure is firm. Two on the right side connecting plate 6 is installed to 4 rear ends of pressure manifold, has two mounting holes in the connecting plate 6, liquid inlet joint 7 and play vapour and connect 8 are installed respectively at both ends about connecting plate 6, the liquid inlet joint 7 outside is connected with feed liquor pipe 9, and feed liquor pipe 9 is used for the inflow of condensate liquid, it is connected with out vapour pipe 10 to go out the vapour and connect 8 outsides, discharges from going out vapour pipe 10 after the condensate liquid vaporization. The inlet and outlet joints 11 are installed at the tail ends of the liquid inlet pipe 9 and the steam outlet pipe 10, and the inlet and outlet joints 11 are provided with two through holes for installing the liquid inlet pipe 9 and the steam outlet pipe 10, so that the whole structure is compact.

The both ends of microchannel aluminum flat tube 2 are 70 closed angles and are set up, increase microchannel aluminum flat tube 2's heated area, fin 3 is the U type and buckles the setting, increases fin 3's heated area for refrigeration efficiency is higher.

And a blocking piece 12 is arranged on the inner side of the middle part of the collecting pipe 4 on the right side, so that the whole evaporation unit 1 can be divided into a plurality of areas.

A small splitter vane 13, a middle splitter vane 14 and a large splitter vane 15 are arranged in the collecting pipe 4 on the left side; big flow distribution piece 15, well flow distribution piece 14 and little flow distribution piece 13 arrange in proper order along the refrigeration liquid flow direction in the pressure manifold 4, and big flow distribution piece 15, well flow distribution piece 14 and little flow distribution piece 13 all have the through-hole, and the diameter of through-hole reduces in proper order, can make the even flow in microchannel aluminum flat tube 2 of the condensation liquid in the pressure manifold 4 like this, and refrigeration efficiency is higher.

The left two ends of the collecting pipe 4 and the right front end of the collecting pipe 4 are provided with pipe plugs 16, so that condensed liquid in the collecting pipe 4 is prevented from overflowing.

The front ends of the two right collecting pipes 4 are communicated with each other, and corresponding round holes are formed in corresponding positions, so that condensed liquid can flow.

The cross section of the collecting pipe 4 is rectangular, so that the upper and lower groups of collecting pipes 4 are combined together more easily, and the joint is fixed in a welding mode.

As shown in fig. 4, the evaporator has 4 processes including a region a, a region B, a region C and a region D, each process includes a plurality of micro-channel flat aluminum tubes 2, and a plurality of small holes are formed in the middle of each micro-channel flat aluminum tube 2. The condensed liquid flows into the collecting pipe 4 from the liquid inlet pipe 9, sequentially passes through four processes of the area A, the area B, the area C and the area D, and finally flows out from the steam outlet pipe 10. The air is from 3 surface processes of fin, and heat transfer through in the air gives the fin, and the fin gives microchannel aluminum flat tube 2 heat conduction, and microchannel aluminum flat tube 2 gives the condensate liquid heat transfer, and the condensate liquid absorbs behind the heat and becomes the gaseous state by liquid, accomplishes whole condensation flow.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A novel parallel flow evaporator is characterized by comprising two groups of evaporation units (1) which are arranged at intervals up and down, the evaporation unit (1) is arranged in a rectangular shape, the evaporation unit (1) comprises micro-channel aluminum flat tubes (2) distributed at equal intervals, radiating fins (3) are arranged on the outer side of the micro-channel aluminum flat tube (2), collecting pipes (4) are arranged at the left end and the right end of the evaporation unit (1), the front end and the rear end of the evaporation unit (1) are respectively provided with a side plate (5), the rear ends of the two right collecting pipes (4) are provided with a connecting plate (6), the upper end and the lower end of the connecting plate (6) are respectively provided with a liquid inlet joint (7) and a steam outlet joint (8), the outer side of the liquid inlet joint (7) is connected with a liquid inlet pipe (9), the outer side of the steam outlet joint (8) is connected with a steam outlet pipe (10), and the tail ends of the liquid inlet pipe (9) and the steam outlet pipe (10) are provided with an inlet joint and an outlet joint (11).

2. The novel parallel flow evaporator as claimed in claim 1, wherein the two ends of the microchannel aluminum flat tube (2) are arranged in a 70 ° sharp angle, and the radiating fins (3) are arranged in a U-shaped bending manner.

3. The novel parallel flow evaporator as recited in claim 1, characterized in that a blocking piece (12) is installed at the inner side of the middle part of said header pipe (4) at the right side.

4. The novel parallel flow evaporator as claimed in claim 1, characterized in that the left side of the collecting main (4) is provided with a small splitter plate (13), a middle splitter plate (14) and a large splitter plate (15); the large flow distribution sheets (15), the middle flow distribution sheets (14) and the small flow distribution sheets (13) are sequentially arranged along the flowing direction of the refrigerating liquid in the collecting pipe (4).

5. The novel parallel flow evaporator as recited in claim 1, characterized in that pipe plugs (16) are installed at both ends of said header pipe (4) on the left side and at the front end of said header pipe (4) on the right side.

6. The novel parallel flow evaporator as recited in claim 1, characterized in that the two right-side headers (4) are communicated with each other at the front ends thereof.

7. A novel parallel flow evaporator according to claim 1, characterized in that the collecting main (4) is rectangular in cross section.