CN-122015345-A - Dry evaporator and air conditioner

CN122015345ACN 122015345 ACN122015345 ACN 122015345ACN-122015345-A

Abstract

The application discloses a dry evaporator and an air conditioner. The dry evaporator comprises an end cover, a liquid inlet pipe, a pipe plate and a liquid homogenizing plate. The end cover is provided with a liquid inlet hole and a containing cavity, the liquid inlet hole is communicated with the containing cavity, the liquid inlet pipe penetrates through the liquid inlet hole and is communicated with the containing cavity, the tube plate is connected with the end cover, the liquid homogenizing plate is arranged in the containing cavity and is provided with a bending part, the bending part corresponds to an outlet of the liquid inlet pipe in the axial direction of the liquid inlet pipe, and the bending part protrudes towards the direction of the liquid inlet pipe compared with the tube plate. The bending part formed on the liquid homogenizing plate is protruded towards the liquid inlet pipe and corresponds to the outlet of the liquid inlet pipe, so that two-phase refrigerant flowing out of the outlet of the liquid inlet pipe can be equally divided by the bending part, the flowing resistance of the bending part is increased, the two-phase refrigerant can flow around the pipe plate, and the liquid homogenizing effect of the liquid homogenizing plate is improved.

Inventors

SONG XIA
ZHANG YAOQUAN
LI FENG
YANG YAN
PENG JIAMING
YUE BAO

Assignees

广东美的暖通设备有限公司
美的集团股份有限公司

Dates

Publication Date: 20260512
Application Date: 20241111

Claims (10)

1. A dry evaporator, comprising: the end cover is provided with a liquid inlet hole and a containing cavity, and the liquid inlet hole is communicated with the containing cavity; the liquid inlet pipe penetrates through the liquid inlet hole and is communicated with the accommodating cavity; The tube plate is connected with the end cover; The liquid homogenizing plate is arranged in the accommodating cavity, the liquid homogenizing plate is provided with a bending part, the bending part corresponds to the outlet of the liquid inlet pipe in the axial direction of the liquid inlet pipe, and the bending part protrudes towards the direction of the liquid inlet pipe compared with the tube plate.
2. The dry evaporator of claim 1, wherein the height of the equalization plate is greater than the diameter of the feed tube and less than the height of the tube sheet, and the length of the equalization plate is greater than the diameter of the feed tube and less than the length of the tube sheet.
3. The dry evaporator according to claim 1, wherein the liquid-equalizing plate is provided with a plurality of liquid-equalizing holes, and the density of the liquid-equalizing holes gradually increases in a direction away from the liquid-intake pipe in a radial direction of the liquid-intake pipe.
4. A dry evaporator as set forth in claim 3 wherein the shape of said liquid-homogenizing holes includes round holes, square holes or shaped holes, and the hole pitch of said liquid-homogenizing holes includes a uniform pitch or a non-uniform pitch.
5. A dry evaporator as set forth in claim 3 wherein said plurality of liquid homogenizing holes Kong Yiping are provided in a staggered or staggered combination of hole patterns.
6. A dry evaporator according to claim 3 wherein the liquid-homogenizing holes have a pore size of 1mm or more and 5mm or less.
7. The dry evaporator of claim 1, wherein the feed tube comprises a plurality of feed tubes and the liquid-homogenizing plate comprises a plurality of bends, each bend corresponding to an outlet of one of the feed tubes.
8. The dry evaporator of claim 1, wherein the tube sheet comprises a liquid outlet that communicates with the receiving cavity and is staggered, the liquid equalization plate covering the liquid outlet in a central region of the tube sheet.
9. The dry evaporator of claim 1, wherein the liquid-homogenizing plate comprises a first portion and a second portion, the first portion and the second portion are connected by the bend, and an included angle formed between the first portion and the second portion is an acute angle or an obtuse angle.
10. An air conditioner comprising the dry evaporator as set forth in any one of claims 1 to 9.

Description

Dry evaporator and air conditioner Technical Field The application relates to the technical field of air conditioners, in particular to a dry evaporator and an air conditioner. Background In the related art, when the throttled two-phase refrigerant in the dry evaporator flows into a tube side from an end cover of the dry evaporator, the two-phase refrigerant can be dispersed and distributed to a pipeline connected with a tube plate through a liquid homogenizing plate between the end cover and the tube plate. At present, the structure of samming board is mostly planar structure and the samming hole evenly distributed who sets up on samming board to make the two-phase refrigerant less through the flow resistance at samming board middle part, two-phase refrigerant mostly gets into the pipeline from samming board middle part, and the dispersion is less to samming board ambient refrigerant volume, leads to samming board's samming effect poor. Disclosure of Invention The embodiment of the application provides a dry evaporator and an air conditioner, which can solve or improve the technical problem that a liquid-homogenizing plate with a plane structure in the dry evaporator has poor liquid-homogenizing effect. The dry evaporator comprises an end cover, a liquid inlet pipe, a pipe plate and a liquid homogenizing plate. The end cover is provided with a liquid inlet hole and a containing cavity, the liquid inlet hole is communicated with the containing cavity, the liquid inlet pipe penetrates through the liquid inlet hole and is communicated with the containing cavity, the tube plate is connected with the end cover, the liquid homogenizing plate is arranged in the containing cavity and is provided with a bending part, the bending part corresponds to an outlet of the liquid inlet pipe in the axial direction of the liquid inlet pipe, and the bending part protrudes towards the direction of the liquid inlet pipe compared with the tube plate. Therefore, the bending part formed on the liquid homogenizing plate is protruded towards the liquid inlet pipe and corresponds to the outlet of the liquid inlet pipe, so that two-phase refrigerant flowing out of the outlet of the liquid inlet pipe can be equally divided by the bending part, the flowing resistance of the bending part is increased, the two-phase refrigerant can flow around the pipe plate, and the liquid homogenizing effect of the liquid homogenizing plate is improved. In certain embodiments, the height of the equalization plate is greater than the diameter of the feed tube and less than the height of the tube sheet, and the length of the equalization plate is greater than the diameter of the feed tube and less than the length of the tube sheet. Therefore, the height and the length of the liquid homogenizing plate are set to be larger than the diameter of the liquid inlet pipe, so that two-phase refrigerant flowing out of the liquid inlet pipe can enter the liquid homogenizing plate, and the length and the height of the liquid homogenizing plate are set to be smaller than the length and the height of the tube plate, so that the two-phase refrigerant can enter the edge part of the tube plate after being homogenized by the liquid homogenizing plate, and the situation that the two-phase refrigerant directly enters the tube plate to cause poor liquid homogenizing effect can be avoided. In some embodiments, the liquid-homogenizing plate is provided with a plurality of liquid-homogenizing holes, and the density of the liquid-homogenizing holes gradually increases along the direction away from the liquid inlet pipe in the radial direction of the liquid inlet pipe. Like this, through set up a plurality of samming holes on the samming board for on two-phase refrigerant can flow to different tube sheet positions from a plurality of samming holes, and along keeping away from on the radial direction of feed liquor pipe, the density in samming hole increases gradually, can balance the flow resistance of samming board, makes two-phase refrigerant can flow the edge position of samming board, thereby can improve samming effect. In certain embodiments, the shape of the liquid-homogenizing holes comprises round holes, square holes or special-shaped holes, and the hole spacing of the liquid-homogenizing holes comprises uniform spacing or non-uniform spacing. Therefore, the shape of the liquid-homogenizing holes is set to be round holes, square holes or special-shaped holes, the requirement of uniform flow of the two-phase refrigerant can be met, the hole spacing of the liquid-homogenizing holes is set to be uniform spacing or non-uniform spacing, the flow resistance of the liquid-homogenizing plate can be balanced, and the liquid-homogenizing effect of the liquid-homogenizing plate is improved. In some embodiments, the plurality of liquid homogenizing holes Kong Yiping are arranged in a staggered or staggered combination hole arrangement manner. Therefore, through the arrangement of a pl