CN208688035U - A kind of micro-channel evaporator and a kind of air-conditioning system - Google Patents

A kind of micro-channel evaporator and a kind of air-conditioning system Download PDF

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Publication number
CN208688035U
CN208688035U CN201821201917.8U CN201821201917U CN208688035U CN 208688035 U CN208688035 U CN 208688035U CN 201821201917 U CN201821201917 U CN 201821201917U CN 208688035 U CN208688035 U CN 208688035U
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China
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flat pipe
pipe group
micro
air
channel evaporator
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CN201821201917.8U
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Chinese (zh)
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王瑞鑫
梁东旭
赵义逢
姚晋芳
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Vertiv Tech Co Ltd
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Vertiv Tech Co Ltd
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Abstract

The utility model relates to refrigeration technology fields, disclose a kind of micro-channel evaporator and a kind of air-conditioning system, to reduce production cost, and promote refrigeration efficiency.Micro-channel evaporator includes: at least two panels flat pipe group for the position that air quantity is different in air-conditioning system, every flat pipe group includes feed liquor header and liquid header and one group of flat tube being connected between feed liquor header and out liquid header out, distribution pipe is inserted in feed liquor header, distribution pipe is provided in the axial direction with several through-holes;Distributor, including inlet and liquid outlet corresponding with every flat pipe group;Capillary corresponding at least two panels flat pipe group, every capillary is for the distribution pipe of corresponding flat pipe group to be connect with liquid outlet;Water pond, positioned at the bottom of at least two panels flat pipe group;Wherein, the capillary of corresponding different flat pipe groups selects different sizes according to the air force difference of flat pipe group present position.

Description

A kind of micro-channel evaporator and a kind of air-conditioning system
Technical field
The utility model relates to refrigeration technology fields, more particularly to a kind of micro-channel evaporator and a kind of air-conditioning system.
Background technique
Air-conditioning is applied in modularization computer room more between column, is mainly freezed by way of both vapor compression direct expansion, Refrigerant is linked in sequence in the closing pipe line to be formed in compressor, condenser, restricting element and evaporator and recycles, detailed process Are as follows: refrigerant enters condenser after being compressed into high temperature and high pressure gas by compressor, and heat release is condensed in condenser into low temperature height Press liquid throttles into low temperature and low pressure liquid using restricting element, is evaporated heat exchange subsequently into evaporator, the system after evaporation Refrigerant gas, which returns to, completes one cycle in compressor.Wherein, the usually used more traditional copper pipe of the evaporator of air-conditioning between column Finned evaporator.
As shown in Figure 1, the structure of existing copper pipe fin type evaporator includes heat exchange copper tube 01 and is coated on heat exchange copper tube The fin of outer surface, in order to reach biggish heat exchange amount, evaporator can be arranged multiple rows of heat exchange copper tube 01, on the one hand will increase in this way Production cost, on the other hand, more intensive heat exchange copper tube 01 of arranging also will increase windage, influence the heat exchange effect of air-conditioner set Rate.
Utility model content
The utility model embodiment provides a kind of micro-channel evaporator and a kind of air-conditioning system, to reduce production cost, And promote refrigeration efficiency.
The utility model embodiment provides a kind of micro-channel evaporator, comprising:
At least two panels flat pipe group of the different position of air quantity, the every flat pipe group include feed liquor collection in air-conditioning system Flow tube and out liquid header and one group of flat tube being connected between feed liquor header and out liquid header, the feed liquor header It is inside inserted with distribution pipe, the distribution pipe is provided in the axial direction with several through-holes;
Distributor, including inlet and liquid outlet corresponding with every flat pipe group;
Capillary corresponding at least two panels flat pipe group, every capillary is used for will be corresponding flat The distribution pipe of pipe group is connect with the liquid outlet;
Water pond, positioned at the bottom of at least two panels flat pipe group;
Wherein, the capillary of corresponding different flat pipe groups is different according to the air force of flat pipe group present position and selection is different Size.
In a specific embodiment, the capillary inner diameter of the flat pipe group at the biggish position of air quantity is greater than position The capillary inner diameter of flat pipe group at the lesser position of air quantity.
In a specific embodiment, the capillary pipe length of the flat pipe group at the biggish position of air quantity is less than position The capillary pipe length of flat pipe group at the lesser position of air quantity.
In a specific embodiment, for every flat pipe group, in the distribution pipe in the biggish region of air quantity The distribution density of through-hole is less than the distribution density of through-hole in the distribution pipe being located in the lesser region of air quantity.
In a specific embodiment, the quantity of the flat pipe group is two panels, and the V-shaped body of two panels flat pipe group Setting, the opening of the V-arrangement body form the air outlet of the micro-channel evaporator.
In a specific embodiment, the quantity of the flat pipe group is four, and every two panels flat pipe group is in the first V respectively Body setting is arranged with the second V-arrangement body, and the second V-arrangement body is stacked and placed on the first V-arrangement body, the first V-arrangement body Opening the air outlet of the micro-channel evaporator is formed with the opening of the second V-arrangement body.
In a specific embodiment, the quantity of the water pond is two, respectively middle water pond and lower water pond, described For middle water pond between the second V-arrangement body and the first V-arrangement body, the lower water pond is located at the first V-arrangement body bottom.
In the utility model embodiment, liquid refrigerants is connect after entering distributor by each liquid outlet with distributor Capillary be sent into different flat pipe groups, due to each flat pipe group present position air quantity it is different, for different Flat pipe group, by being different sizes by corresponding capillary design, so that it may which control actually enters cold in flat pipe group On the one hand matchmaker's flow ensure that the cold medium flux in the flat pipe group at the biggish position of air quantity can satisfy its heat exchange in this way Demand, the refrigerant on the other hand in turn avoiding being located in the flat pipe group at the lesser position of air quantity excessively cause to waste, compared to existing Have a copper pipe fin type evaporator in technology, micro-channel evaporator provided by the embodiment of the utility model not only production cost compared with It is low, and refrigeration efficiency also greatly promotes.
The utility model embodiment additionally provides a kind of air-conditioning system, including is linked in sequence to form closed circulation by pipeline Compressor, condenser, restricting element and the micro-channel evaporator as described in aforementioned any technical solution, wherein the section Fluid element is connect with the inlet of the distributor of the micro-channel evaporator, and the compressor goes out with the micro-channel evaporator The connection of liquid header.Air-conditioning system refrigeration efficiency with higher.
In a specific embodiment, the restricting element is electric expansion valve;Alternatively, the restricting element is heat Power expansion valve.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of copper pipe fin type evaporator in the prior art;
Fig. 2 is the structural schematic diagram of the utility model embodiment micro-channel evaporator.
Appended drawing reference:
Prior art part:
01- heat exchange copper tube
The utility model embodiment part:
10- flat pipe group 11- feed liquor header 12- goes out liquid header 13- flat tube
14- distribution pipe 20- distributor 21- inlet 22- liquid outlet
30- capillary 40- water pond 15- the first V-arrangement body 16- the second V-arrangement body
Water pond 50- restricting element under water pond 42- in 41-
Specific embodiment
In order to reduce production cost, and refrigeration efficiency is promoted, the utility model embodiment provides a kind of microchannel steaming Send out device and a kind of air-conditioning system.It is right by the following examples to keep the purpose of this utility model, technical solution and advantage clearer The utility model is described in further detail.
As shown in Fig. 2, micro-channel evaporator provided by the embodiment of the utility model, comprising:
At least two panels flat pipe group 10 of the different position of air quantity in air-conditioning system, every flat pipe group 10 include feed liquor collection Flow tube 11 and out liquid header 12 and one group of flat tube 13 being connected between feed liquor header 11 and out liquid header 12, feed liquor Distribution pipe 14 is inserted in header 11, distribution pipe 14 is provided in the axial direction with several through-hole (not shown)s;
Distributor 20, including inlet 21 and liquid outlet 22 corresponding with every flat pipe group 10;
Capillary 30 corresponding at least two panels flat pipe group 10, every capillary 30 are used for corresponding flat tube The distribution pipe 14 of group 10 is connect with liquid outlet 22;
Water pond 40, positioned at the bottom of at least two panels flat pipe group 10;
Wherein, the capillary 30 of corresponding different flat pipe groups 10 is selected according to the air force difference of 10 present position of flat pipe group Select different sizes.
At work, liquid refrigerants enters distribution pipe 14 by capillary 30 to micro-channel evaporator, by opening in distribution pipe 14 If through-hole spray into feed liquor header 11, subsequently flow to out liquid header 12 by flat tube 13 by feed liquor header 11;With This simultaneously, be located at micro-channel evaporator air outlet on front side of blower suction under, extraneous hot-air is by microchannel Simultaneously with the liquid refrigerants in flat tube 13 heat exchange occurs for the flat tube 13 of evaporator, forms condensed water, condensation on the surface of flat tube 13 Water used in the gravity under under the stream of the surface of flat tube 13, collect in the water pond 40 of 10 lower section of flat pipe group.However, due to air conditioner The internal structure of cabinet is more compact, on the air duct formed between blower and the air outlet of micro-channel evaporator inevitably by Pipeline or other structures part are hindered, will lead in this way the position where different flat pipe groups 10 air quantity can difference, At this time if distribution to every flat pipe group 10 cold medium flux be it is identical, not only result at the biggish position of air quantity Cold medium flux in flat pipe group 10 is unable to satisfy its heat exchange demand, can also to be located at the flat pipe group 10 at the lesser position of air quantity Interior refrigerant excessively causes to waste, to influence refrigeration efficiency.
In the utility model embodiment, liquid refrigerants enters after distributor 20 by each liquid outlet with distributor 20 22 connection capillaries 30 be sent into different flat pipe groups 10, due to each 10 present position of flat pipe group air quantity it is different, because This is directed to different flat pipe groups 10, by the way that corresponding capillary 30 is designed as different sizes, so that it may which control is practical On the one hand cold medium flux into flat pipe group 10 ensure that cold in the flat pipe group 10 at the biggish position of air quantity in this way Matchmaker's flow can satisfy its heat exchange demand, on the other hand in turn avoid being located at cold in the flat pipe group 10 at the lesser position of air quantity Matchmaker excessively causes to waste, copper pipe fin type evaporator compared to the prior art, microchannel provided by the embodiment of the utility model Evaporator not only lower production costs, and refrigeration efficiency also greatly promotes.
Wherein, the quantity of flat pipe group is unlimited, and in a preferred embodiment of the utility model, the quantity of flat pipe group is two Piece, and the V-shaped body setting of two panels flat pipe group, the opening of V-arrangement body forms the air outlet of micro-channel evaporator, using the embodiment side Case can reduce the height of A/C evaporator between column, be conducive to the discharge of condensed water.
More preferably, as shown in Figure 1, the quantity of flat pipe group 10 is four, every two panels flat pipe group 10 is in the first V-arrangement body 15 respectively Setting is arranged with the second V-arrangement body 16, and the second V-arrangement body 16 is stacked and placed on the first V-arrangement body 15, the opening of the first V-arrangement body 15 with The opening of second V-arrangement body 16 forms the air outlet of micro-channel evaporator, full slice system evaporator compared to the prior art, the program The height of A/C evaporator between arranging can be further decreased, and significantly increases the heat exchange area of evaporator, is changed to improve Thermal effect.
A water pond 40 can be arranged in the lower section of the first V-arrangement body 15, in this way in micro-channel evaporator in above-described embodiment Condensed water caused by 16 heat exchange of first V-arrangement body 15 and the second V-arrangement body can converge in the water pond 40 under the effect of gravity. In order to make condensed water easily facilitate discharge, in the preferred embodiment of the utility model, as shown in Figure 1, the quantity of water pond 40 is Two, respectively in water pond 41 and lower water pond 42, middle water pond 41 is between the second V-arrangement body 16 and the first V-arrangement body 15, lower water pond 42 are located at 15 bottom of the first V-arrangement body.
Related with its internal diameter and length by the water of capillary 30, the internal diameter of capillary 30 is smaller and/or length is longer, Resistance is bigger, and the cold medium flux by capillary 30 is fewer;Conversely, the internal diameter of capillary 30 is bigger and/or length is shorter, resistance Power is smaller, and the cold medium flux by capillary 30 is more.Therefore, it in the utility model embodiment, can be corresponded to by changing The capillary inner diameters of different flat pipe groups and length adjust the cold medium flux of distribution to each flat pipe group.In a specific implementation In mode, 30 internal diameter of capillary of the flat pipe group 10 at the biggish position of air quantity, which is greater than, to be located at the lesser position of air quantity 30 internal diameter of capillary of flat pipe group 10;Flat pipe group 10 in another specific embodiment, at the biggish position of air quantity 30 length of capillary be less than be located at the lesser position of air quantity at flat pipe group 10 30 length of capillary.It should be understood that tool When body is arranged, cold medium flux can be adjusted by only changing one of parameter of 30 internal diameter of capillary or length, certainly Two parameters can also be changed simultaneously to be adjusted, the utility model is without limitation, as long as guaranteeing to adjust through capillary 30 Cold medium flux afterwards can not will cause waste again while meeting heat exchange demand.It should be noted that capillary 30 Specific size need the air quantity in air-conditioning system locating for flat pipe group 10 to be designed, do not repeat herein.
For every flat pipe group 10, the air quantity of actually the location of different zones of flat pipe group 10 is also different, Therefore it is also required to that the refrigerant flow of the different zones flat tube 13 of flat pipe group 10 is adjusted.In the mistake for realizing the utility model Cheng Zhong, inventors have found that the distribution density of through-hole influences the cold medium flux for being sent into flat tube 13 by header 11, tool in distribution pipe 14 Body is shown as, and divides the distribution density of through-hole on jet pipe 14 smaller, and the refrigerant of air quantity large area flat tube 13 is sent by header 11 Flow is more, therefore, in the utility model embodiment, for every flat pipe group 10, in the biggish region of air quantity The distribution density of through-hole is less than the distribution density of through-hole in the distribution pipe 14 being located in the lesser region of air quantity in distribution pipe 14, this Sample can enable the flat tube 13 in the biggish region of the air quantity of flat pipe group 10 be assigned to more refrigerants, guarantee heat transfer effect.
The utility model embodiment additionally provides a kind of air-conditioning system, including is linked in sequence to form closed circulation by pipeline Compressor, condenser, restricting element 50 and as aforementioned any technical solution micro-channel evaporator, wherein restricting element 50 connect with the inlet 21 of the distributor 20 of micro-channel evaporator, and the liquid header 12 that goes out of compressor and micro-channel evaporator connects It connects, wherein restricting element 50 is specifically as follows electric expansion valve or heating power expansion valve, and the utility model is without limitation. Air-conditioning system refrigeration efficiency with higher.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.

Claims (9)

1. a kind of micro-channel evaporator characterized by comprising
At least two panels flat pipe group of the different position of air quantity, the every flat pipe group include feed liquor header in air-conditioning system Liquid header and one group of flat tube being connected between feed liquor header and out liquid header out, the feed liquor header interpolation Equipped with distribution pipe, the distribution pipe is provided in the axial direction with several through-holes;
Distributor, including inlet and liquid outlet corresponding with every flat pipe group;
Capillary corresponding at least two panels flat pipe group, the every capillary are used for corresponding flat pipe group Distribution pipe connect with the liquid outlet;
Water pond, positioned at the bottom of at least two panels flat pipe group;
Wherein, the capillary of corresponding different flat pipe groups selects different rulers according to the air force difference of flat pipe group present position It is very little.
2. micro-channel evaporator as described in claim 1, which is characterized in that flat pipe group at the biggish position of air quantity Capillary inner diameter is greater than the capillary inner diameter for the flat pipe group being located at the lesser position of air quantity.
3. micro-channel evaporator as described in claim 1, which is characterized in that flat pipe group at the biggish position of air quantity Capillary pipe length is less than the capillary pipe length for the flat pipe group being located at the lesser position of air quantity.
4. micro-channel evaporator as described in claim 1, which is characterized in that for every flat pipe group, it is biggish to be located at air quantity The distribution density of through-hole is close less than the distribution of through-hole in the distribution pipe being located in the lesser region of air quantity in distribution pipe in region Degree.
5. micro-channel evaporator as described in claim 1, which is characterized in that the quantity of the flat pipe group is two panels, and described The V-shaped body setting of two panels flat pipe group, the opening of the V-arrangement body form the air outlet of the micro-channel evaporator.
6. micro-channel evaporator as described in claim 1, which is characterized in that the quantity of the flat pipe group is four, every two panels Flat pipe group be in respectively the first V-arrangement body setting with the second V-arrangement body be arranged, and the second V-arrangement body be stacked and placed on the first V-arrangement body it On, being open for the first V-arrangement body forms the air outlet of the micro-channel evaporator with the opening of the second V-arrangement body.
7. micro-channel evaporator as claimed in claim 6, which is characterized in that the quantity of the water pond be two, respectively in Water pond and lower water pond, for the middle water pond between the second V-arrangement body and the first V-arrangement body, the lower water pond is located at institute State the first V-arrangement body bottom.
8. a kind of air-conditioning system, which is characterized in that including the compressor to form closed circulation, condensation of being linked in sequence by pipeline Device, restricting element and micro-channel evaporator as described in any one of claims 1 to 7, wherein the restricting element with it is described The inlet of the distributor of micro-channel evaporator connects, and the liquid header that goes out of the compressor and the micro-channel evaporator connects It connects.
9. air-conditioning system as claimed in claim 8, which is characterized in that the restricting element is electric expansion valve;Alternatively, described Restricting element is heating power expansion valve.
CN201821201917.8U 2018-07-26 2018-07-26 A kind of micro-channel evaporator and a kind of air-conditioning system Active CN208688035U (en)

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Application Number Priority Date Filing Date Title
CN201821201917.8U CN208688035U (en) 2018-07-26 2018-07-26 A kind of micro-channel evaporator and a kind of air-conditioning system

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Application Number Priority Date Filing Date Title
CN201821201917.8U CN208688035U (en) 2018-07-26 2018-07-26 A kind of micro-channel evaporator and a kind of air-conditioning system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020019828A1 (en) * 2018-07-26 2020-01-30 维谛技术有限公司 Micro-channel evaporator and air-conditioning system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020019828A1 (en) * 2018-07-26 2020-01-30 维谛技术有限公司 Micro-channel evaporator and air-conditioning system

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