CN106440438A - Modularized magnetic levitation refrigeration system and multifunctional heat exchanger structure thereof - Google Patents
Modularized magnetic levitation refrigeration system and multifunctional heat exchanger structure thereof Download PDFInfo
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- CN106440438A CN106440438A CN201611049646.4A CN201611049646A CN106440438A CN 106440438 A CN106440438 A CN 106440438A CN 201611049646 A CN201611049646 A CN 201611049646A CN 106440438 A CN106440438 A CN 106440438A
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- Prior art keywords
- heat exchanger
- inlet
- multifunctional heat
- liquid
- liquid outlet
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/005—Compression machines, plants or systems with non-reversible cycle of the single unit type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/28—Means for preventing liquid refrigerant entering into the compressor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a modularized magnetic levitation refrigeration system which comprises a refrigeration cycle system and a multifunctional heat exchanger. The refrigeration cycle system is composed of a magnetic levitation centrifugal compressor, a condenser, an electronic expansion valve and an evaporator. The multifunctional heat exchanger is located above the evaporator for achieving the functions of supercooling, back heating and gas-liquid separation; a liquid outlet of the condenser is connected to a first liquid inlet of the multifunctional heat exchanger, the electronic expansion valve is installed on a pipeline between a first liquid outlet and a second liquid inlet of the multifunctional heat exchanger, a second liquid outlet of the multifunctional heat exchanger is connected to the evaporator through a pipeline, a gas outlet of the evaporator is connected to a gas inlet of the multifunctional heat exchanger through a pipeline, and a gas inlet of the multifunctional heat exchanger is connected to the magnetic levitation centrifugal compressor through a pipeline. By adopting the gravity liquid supply mode, a larger refrigerant circulation volume can be provided for the evaporator, the heat exchange area of the evaporator can be sufficiently utilized, the higher evaporation efficiency can be obtained, and the suction liquid carrying risk can be effectively avoided.
Description
Technical field
The present invention relates to a kind of modularization magnetic suspension refrigeration system with multifunctional heat exchanger as core component, particularly relate to
And a kind of application and data center and civil buildings energy-saving air-conditioning system.
Background technology
Data center and civil buildings transformation project need a kind of modular refrigeration unit, its be mainly characterized by size little,
The lightweight goods that is adapted to is carried with even commercial elevator；Have and traditional handpiece Water Chilling Units identical refrigerating efficiency.
Currently for transformation project demand and technical progress situation, most reliable scheme is using magnetic suspension centrifugal compressor
Machine, condenser and evaporimeter all adopt plate type heat exchanger (soldering formula), control electric expansion valve using the degree of superheat, for balance plate
The little risk with absorbing gas belt liquid of formula heat exchanger charging amount in kind of refrigeration cycle, often arranges gas-liquid separator in system circulation and returns
Hot device.But can not be from overcoming serious absorbing gas belt liquid risk at all.Using degree of superheat control mode, the evaporation temperature of evaporimeter
Degree is difficult to improve；And for overcoming absorbing gas belt liquid risk to need to increase heat exchange area in heat exchanger, cause cost to increase.
Content of the invention
Goal of the invention：For problems of the prior art, the present invention provides a kind of modularization magnetic suspension refrigeration system
And its multifunctional heat exchanger structure, the heat exchange area of evaporimeter can be made full use of, obtain higher evaporation efficiency, and effectively advise
Keep away absorbing gas belt liquid risk.
Technical scheme：For achieving the above object, the present invention adopts the following technical scheme that：
A kind of modularization magnetic suspension refrigeration system, including by magnetic suspension centrifugal compressor, condenser, electric expansion valve and
The cooling cycle system of evaporimeter composition, also includes realizing supercooling, backheat and gas-liquid separating function above evaporimeter
Multifunctional heat exchanger, the heat-exchanging component of described multifunctional heat exchanger is provided with the first inlet and the first liquid outlet, and housing is provided with
Two inlets, the second liquid outlet, air inlet, gas outlet and liquid level sensor, housing internal upper part is provided with demister；The going out of condenser
Liquid mouth is connected by pipeline to the first inlet of multifunctional heat exchanger, and electric expansion valve is installed on the first of multifunctional heat exchanger
On pipeline between liquid outlet and the second inlet, the second liquid outlet of multifunctional heat exchanger is connected to evaporimeter by pipeline,
The gas vent of evaporimeter is connected by pipeline to the air inlet of multifunctional heat exchanger, and the air inlet of multifunctional heat exchanger passes through pipe
Road connects to magnetic suspension centrifugal compressor.
Preferably, bottom is additionally provided with porous plate in the housing of described multifunctional heat exchanger, the second inlet second goes out liquid
Mouth is located at housing bottom.
Preferably, described condenser is soldering formula condenser, described evaporimeter is soldering formula evaporimeter.
A kind of multifunctional heat exchanger structure, including heat-exchanging component and heat exchanger shell, described heat-exchanging component is located in housing,
It is provided with the first inlet and the first liquid outlet, housing is provided with the second inlet, the second liquid outlet, air inlet, gas outlet and liquid level
Sensor, housing internal upper part is provided with demister；Described air inlet is used for the gas after accessing evaporator evaporation, and gas outlet is used for even
It is connected to compressor；Described first inlet is used for accessing the refrigerant liquid of condenser, and the first liquid outlet is used for connecting extremely
Electric expansion valve, the second inlet is used for liquid after electric expansion valve throttling for the access, and the second liquid outlet is used for connecting to steaming
Send out device.
Preferably, bottom is additionally provided with porous plate in described housing, second inlet the second liquid outlet is located at housing bottom.
Beneficial effect：Compared with prior art, it is an advantage of the invention that：Multifunctional heat exchanger of the present invention is located on evaporimeter
, there is the discrepancy in elevation in side, form gravity force liquid-supply mode, compared with traditional directly swollen feed liquid way, can provide more for evaporimeter
Circulating mass of refrigerant, and do not adopt traditional degree of superheat control mode, the heat exchange area of heat exchanger only needs to meet evaporation need
Asking can be it is not necessary to offer be overheated；And evaporimeter return-air enters multifunctional heat exchanger and carries out gas-liquid separation, thus evading air-breathing
Band liquid risk.
Brief description
Fig. 1 is the multifunctional heat exchanger schematic diagram of the embodiment of the present invention.
Fig. 2 is the modularization magnetic suspension refrigeration system principle figure of the embodiment of the present invention.
In figure, 1- heat-exchanging component, 2- housing, 3- first inlet, 4- first liquid outlet, 5- second inlet, 6- second
Liquid outlet, 7- air inlet, 8- gas outlet, 9- demister, 10- porous plate, 11- liquid level sensor, 20- magnetic suspension centrifugal compressor
Machine, 21- safety valve, 22- check valve, 23- butterfly valve, 24- high pressure sensor, 25- plate-type condenser, 26- ball valve, 27- is dried
Filter, 28- electric expansion valve, 29- plate-type evaporator, 30- multifunctional heat exchanger, 31- magnetic valve.
Specific embodiment
With reference to specific embodiment, it is further elucidated with the present invention it should be understood that these embodiments are merely to illustrate the present invention
Rather than restriction the scope of the present invention, after having read the present invention, the various equivalences to the present invention for the those skilled in the art
The modification of form all falls within the application claims limited range.
As shown in figure 1, a kind of multifunctional heat exchanger disclosed in the embodiment of the present invention is one kind has supercooling, backheat, gas-liquid
The special heat exchanger of separation function, including heat-exchanging component 1 and heat exchanger shell 2, heat-exchanging component 1 is provided with the first inlet 3 and
One liquid outlet 4.Housing 2 internal upper part is provided with demister 9, and bottom is provided with porous plate 10, and housing 2 is provided with the second inlet 5 and
Two liquid outlets 6, and air inlet 7 and gas outlet 8；Second inlet 5 and the second liquid outlet 6 are located at housing 2 bottom, gas outlet 8
Above demister 9, air inlet 7 is located at below demister 9.Air inlet 7 is used for connecting evaporimeter gas outlet 8, introduces evaporation
Gas after device evaporation, gas outlet 8 is used for connecting to compressor air suction mouth；First inlet 3 is used for accessing condenser
Refrigerant liquid, the first liquid outlet 4 is used for connecting to electric expansion valve, and the second inlet 5 is used for accessing through electric expansion valve section
Liquid after stream, the second liquid outlet 6 is used for connecting to evaporimeter.Multifunctional heat exchanger is additionally provided with detection housing inner refrigerant liquid level
The liquid level sensor 11 of position.
Multifunctional heat exchanger heat-exchanging component 1 is one group of copper pipe combined helical structure, and the refrigerant liquid carrying out condenser exists
Its Bottomhole pressure, in the liquid (the gas-liquid two-phase liquid after electric expansion valve throttling) in multifunctional heat exchanger housing 2
Evaporation is thus cool down refrigerant liquid；Gas after evaporator evaporation through multifunctional heat exchanger internal upper part heat exchanger assembly, from
And be that refrigerant gas offer is overheated, coordinate thus realizing gas-liquid separating function with demister 9.Demister 9 can adopt stainless steel
The mode such as the porous plate of material wire netting or panel beating composition or aluminium alloy net, by the fine droplet mixing in refrigerant gas
Isolated.In housing 2, the porous plate 10 of bottom has the effect evenly distributing fluid, makes cold-producing medium in multifunctional heat exchanger
Liquid level stabilizing, it is to avoid fluctuation, provides resistance to be beneficial to refrigerant liquid distribution, and for overcoming evaporimeter resistance to provide power.
As shown in Fig. 2 a kind of modularization magnetic suspension refrigeration system disclosed in the embodiment of the present invention, traditional by magnetic suspension
On the basis of centrifugal compressor 20, the cooling cycle system of condenser 25, electric expansion valve 28 and evaporimeter 29 composition, devise
The multifunctional heat exchanger 30 with supercooling, backheat, gas-liquid separating function as shown in Figure 1.Multifunctional heat exchanger 30 is located at evaporation
Above device 29, the liquid outlet of condenser 25 is connected by pipeline to the first inlet 3 of multifunctional heat exchanger 30, electric expansion valve
28 are installed on the pipeline between the first liquid outlet 4 of multifunctional heat exchanger 30 and the second inlet 5, multifunctional heat exchanger 30
Second liquid outlet 6 is connected to evaporimeter 29 by pipeline, and the gas vent of evaporimeter 29 is connected to Multifunctional heat exchange by pipeline
The air inlet 7 of device 30, the air inlet 7 of multifunctional heat exchanger 30 is connected to magnetic suspension centrifugal compressor 20 by pipeline.This reality
The workflow applying cold-producing medium in a refrigeration system is：From compressor 20 through check valve, condenser 25, device for drying and filtering 27,
Multifunctional heat exchanger 30 (built-in heat-exchanging component 1), electric expansion valve 28, multifunctional heat exchanger 30 (housing 2), evaporimeter 29, work(
Compressor 20 formation circulation can be returned by heat exchanger (housing 2).
The electric expansion valve 28 of the present embodiment adopts Liquid level mode, and multifunctional heat exchanger 30 is provided with system in detection housing
The liquid level sensor 11 of cryogen liquid level position, controls electric expansion valve 28 aperture according to liquid level sensor 11 signal.Concrete control
Method is：Set Liquid level desired value as controlled quentity controlled variable, if the liquid level of detection is higher than desired value, reduce electric expansion valve
28 apertures, make the refrigerant flow of entrance evaporimeter 29 reduce；If the liquid level low pressure of detection is in desired value, increase electronics swollen
Swollen valve 28 aperture, makes the refrigerant flow of entrance evaporimeter 29 increase.Liquid level position by detection multifunctional heat exchanger is direct
Control the circulating mass of refrigerant entering evaporimeter, thus controlling the refrigerant gas entering compressor air suction mouth to be approximate saturation shape
State, makes full use of the heat exchange area of evaporimeter, thus obtaining higher evaporation efficiency.
Claims (5)
1. a kind of modularization magnetic suspension refrigeration system, including by magnetic suspension centrifugal compressor, condenser, electric expansion valve and steaming
Send out device composition cooling cycle system it is characterised in that：Also include the realization supercooling above evaporimeter, backheat and gas-liquid to divide
From the multifunctional heat exchanger of function, the heat-exchanging component of described multifunctional heat exchanger is provided with the first inlet and the first liquid outlet, shell
Body is provided with the second inlet, the second liquid outlet, air inlet, gas outlet and liquid level sensor, and housing internal upper part is provided with demister；Cold
The liquid outlet of condenser is connected by pipeline to the first inlet of multifunctional heat exchanger, and electric expansion valve is installed on Multifunctional heat exchange
On pipeline between first liquid outlet of device and the second inlet, the second liquid outlet of multifunctional heat exchanger by pipeline connect to
Evaporimeter, the gas vent of evaporimeter is connected by pipeline to the air inlet of multifunctional heat exchanger, the air inlet of multifunctional heat exchanger
Mouth is connected to magnetic suspension centrifugal compressor by pipeline.
2. modularization magnetic suspension refrigeration system according to claim 1 it is characterised in that：The shell of described multifunctional heat exchanger
Internal bottom is additionally provided with porous plate, and second inlet the second liquid outlet is located at housing bottom.
3. modularization magnetic suspension refrigeration system according to claim 1 it is characterised in that：Described condenser is that soldering formula is cold
Condenser, described evaporimeter is soldering formula evaporimeter.
4. a kind of multifunctional heat exchanger structure it is characterised in that：Including heat-exchanging component and heat exchanger shell, described heat-exchanging component position
In housing, it is provided with the first inlet and the first liquid outlet, housing is provided with the second inlet, the second liquid outlet, air inlet, gives vent to anger
Mouth and liquid level sensor, housing internal upper part is provided with demister；Described air inlet is used for the gas after accessing evaporator evaporation, gives vent to anger
Mouth is for connecting to compressor；Described first inlet is used for accessing the refrigerant liquid of condenser, and the first liquid outlet is used
In connecting to electric expansion valve, the second inlet is used for accessing the liquid after electric expansion valve throttling, and the second liquid outlet is used for
Connect to evaporimeter.
5. multifunctional heat exchanger structure according to claim 4 it is characterised in that：In described housing, bottom is additionally provided with porous
Plate, second inlet the second liquid outlet is located at housing bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049646.4A CN106440438A (en) | 2016-11-24 | 2016-11-24 | Modularized magnetic levitation refrigeration system and multifunctional heat exchanger structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049646.4A CN106440438A (en) | 2016-11-24 | 2016-11-24 | Modularized magnetic levitation refrigeration system and multifunctional heat exchanger structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106440438A true CN106440438A (en) | 2017-02-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611049646.4A Pending CN106440438A (en) | 2016-11-24 | 2016-11-24 | Modularized magnetic levitation refrigeration system and multifunctional heat exchanger structure thereof |
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| CN (1) | CN106440438A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255653A (en) * | 2019-07-25 | 2019-09-20 | 瀚能(宁波)节能科技有限公司 | A kind of board-like freezing and crystallizing device of pillow-type for handling high-salt wastewater |
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| FR2619202A1 (en) * | 1987-08-07 | 1989-02-10 | Cemagref | Refrigerating installation with a device for storing cold by means of latent heat |
| JPH06300367A (en) * | 1993-04-14 | 1994-10-28 | Nippondenso Co Ltd | Freezing cycle device |
| JP2001027460A (en) * | 1993-12-28 | 2001-01-30 | Mitsubishi Electric Corp | Refrigeration cycle system |
| CN101368775A (en) * | 2008-10-08 | 2009-02-18 | 天津商业大学 | Natural circulation gravity force liquid-supply evaporator |
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| CN103759478A (en) * | 2014-02-16 | 2014-04-30 | 中国计量学院 | Application method of full-sealed refrigerant liquid pump in high-rise building refrigeration air conditioner system |
| CN104236147A (en) * | 2013-06-20 | 2014-12-24 | 重庆美的通用制冷设备有限公司 | Water cooling unit |
| CN105526745A (en) * | 2016-02-04 | 2016-04-27 | 天津商业大学 | Refrigerating system utilizing flash air to supercool high-pressure liquid refrigerant and realizing single-phase liquid-state uniform distribution of refrigerant |
| CN205536716U (en) * | 2016-04-15 | 2016-08-31 | 天津商业大学 | Refrigerating system of little channel evaporator's single -phase confession liquid |
| CN106705470A (en) * | 2016-12-12 | 2017-05-24 | 珠海格力电器股份有限公司 | Flooded refrigerating unit |
| CN206377873U (en) * | 2016-11-24 | 2017-08-04 | 南京佳力图机房环境技术股份有限公司 | A kind of modularization magnetic suspension refrigeration system and its multifunctional heat exchanger structure |
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2016
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Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2619202A1 (en) * | 1987-08-07 | 1989-02-10 | Cemagref | Refrigerating installation with a device for storing cold by means of latent heat |
| JPH06300367A (en) * | 1993-04-14 | 1994-10-28 | Nippondenso Co Ltd | Freezing cycle device |
| JP2001027460A (en) * | 1993-12-28 | 2001-01-30 | Mitsubishi Electric Corp | Refrigeration cycle system |
| CN101368775A (en) * | 2008-10-08 | 2009-02-18 | 天津商业大学 | Natural circulation gravity force liquid-supply evaporator |
| CN202928208U (en) * | 2012-11-26 | 2013-05-08 | 麦克维尔空调制冷(武汉)有限公司 | Thermal siphon type reboiler for industrial refrigerating device |
| CN104236147A (en) * | 2013-06-20 | 2014-12-24 | 重庆美的通用制冷设备有限公司 | Water cooling unit |
| CN103759478A (en) * | 2014-02-16 | 2014-04-30 | 中国计量学院 | Application method of full-sealed refrigerant liquid pump in high-rise building refrigeration air conditioner system |
| CN105526745A (en) * | 2016-02-04 | 2016-04-27 | 天津商业大学 | Refrigerating system utilizing flash air to supercool high-pressure liquid refrigerant and realizing single-phase liquid-state uniform distribution of refrigerant |
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| CN206377873U (en) * | 2016-11-24 | 2017-08-04 | 南京佳力图机房环境技术股份有限公司 | A kind of modularization magnetic suspension refrigeration system and its multifunctional heat exchanger structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255653A (en) * | 2019-07-25 | 2019-09-20 | 瀚能(宁波)节能科技有限公司 | A kind of board-like freezing and crystallizing device of pillow-type for handling high-salt wastewater |
| CN110255653B (en) * | 2019-07-25 | 2024-05-24 | 瀚能(苏州)节能科技有限公司 | Pillow-type plate-type freezing crystallization device for treating high-salt wastewater |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |
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| RJ01 | Rejection of invention patent application after publication |