CN104896637A - Light-load dehumidification and refrigeration method and device - Google Patents

Light-load dehumidification and refrigeration method and device Download PDF

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Publication number
CN104896637A
CN104896637A CN201510298623.6A CN201510298623A CN104896637A CN 104896637 A CN104896637 A CN 104896637A CN 201510298623 A CN201510298623 A CN 201510298623A CN 104896637 A CN104896637 A CN 104896637A
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CN
China
Prior art keywords
evaporimeter
refrigerant
temperature
liquid
described evaporimeter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510298623.6A
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Chinese (zh)
Inventor
韩义
赵垚澎
褚玉刚
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201510298623.6A priority Critical patent/CN104896637A/en
Publication of CN104896637A publication Critical patent/CN104896637A/en
Priority to PCT/CN2015/096510 priority patent/WO2016192347A1/en
Priority to EP15893991.8A priority patent/EP3293467A4/en
Priority to BR112017025830A priority patent/BR112017025830A2/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001—Compression cycle 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1405—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F25B39/028—Evaporators having distributing means
    • 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
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • 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
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
    • 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
    • F25B6/00—Compression machines, plants or systems, with several condenser circuits
    • F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only

Abstract

The invention provides a light-load dehumidification and refrigeration device. The device is characterized in that an evaporator (3) is divided into a first evaporator portion (5) and a second evaporator portion (7), and a throttling device (6) is serially connected between the first evaporator portion (5) and the second evaporator portion (7); under the condition of refrigeration and dehumidification, an electronic expansion valve A (8) throttles liquid refrigerant fed in from a condenser (2); the first evaporator portion (5) and the second evaporator portion (7) increase temperature of the gas-liquid two-phase refrigerant to change the gas-liquid two-phase refrigerant into gas refrigerant, and environment temperature is lowered for dehumidification; under the condition of constant-temperature dehumidification, the electronic expansion valve A (8) does not perform throttling, and the first evaporator portion (5) lowers the temperature of the liquid refrigerant; the throttling device (6) throttles the liquid refrigerant; the second evaporator portion (7) increases the temperature of the gas-liquid two-phase refrigerant to change the gas-liquid two-phase refrigerant into the gas refrigerant, and the environment temperature is lowered for dehumidification.

Description

A kind of underloading desiccant cooling method and device
Technical field
The present invention relates to electronic communication technology field, particularly relate to a kind of method and device of underloading desiccant cooling.
Background technology
Precision air conditioner refers to the machine room Special precision air conditioner that fully can meet building environment conditional request, is the new machine grown up gradually in nearly 30 years.Put computer equipment and programme-controlled exchange product etc. in computer room, be made up of a large amount of intensive electronic component.Improve the stable of these equipment use and reliability, the temperature humidity of environment need be strict controlled in particular range.During early stage machine room comfort air conditioner, usually occur that data transmission is disturbed, and occurs the problems such as electrostatic because ambient temperature and humidity state modulator is improper and cause calculator room equipment fluctuation of service.Precise machine room air conditioner is then the special air conditioner for modern electronic equipment Design of Machine Room, its operating accuracy and reliability all much higher than common air-conditioning.
In precision air conditioner, humidity is mainly regulated by two parts, one be air by evaporator surface time, because temperature is lower than the dew point of steam, the steam in air can liquefy, thus reduces the humidity in air; Two is after humidity in process of refrigerastion is lower than setting value, can open humidifier and carry out humidification, ensures that humidity is in setting range.Therefore the process dehumidified is inherently along with the reduction of environment temperature, and precision air conditioner refrigerating capacity is large, and what cannot manipulate simple and low cost at present in air precision air conditioning system realizes constant temperature dehumidification.
Summary of the invention
The embodiment of the present invention provides a kind of method and device of underloading desiccant cooling, and on the basis possessing existing refrigerated dehumidification function, what can also manipulate simple and low cost realizes constant temperature dehumidification.
First aspect provides a kind of underloading desiccant cooling device, comprise compressor (1), condenser (2) and evaporimeter (3), and electric expansion valve (8), described compressor (1) input is connected with described evaporimeter (3) output, described compressor (1) output is connected with described condenser (2) input, described condenser (2) output is connected with described evaporimeter (3) input, described electric expansion valve A (8) is series between described condenser (2) and described evaporimeter (3), refrigerant tubing (4) is all used to be connected between described each end, it is characterized in that:
Described compressor (1), for the gaseous refrigerant entering described compressor (1) is compressed, raise with the pressure and temperature that make described gaseous refrigerant, and the gaseous refrigerant after increasing temperature and pressure is exported to condenser (2);
Described condenser (2), for by described increase temperature and pressure after gaseous refrigerant lower the temperature, export to evaporimeter (3) after being condensed into liquid refrigerant to make described gaseous refrigerant;
Described evaporimeter (3), is divided into evaporimeter 1 (5) and 2, evaporimeter (7), is in series with throttling arrangement (6) between described evaporimeter 1 (5) and 2, described evaporimeter (7);
When freezing and dehumidify, described electric expansion valve A (8) closes a part, throttling is carried out to the described liquid refrigerant inputted from described condenser (2), to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to export to described evaporimeter (3);
The cold-producing medium of the described gas-liquid two-phase that described electric expansion valve A (8) exports by described evaporimeter 1 (5) and 2, evaporimeter (7) and environment carry out exchange heat, described throttling arrangement (6) does not carry out throttling, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, for reducing environment temperature with after dehumidifying to described environment, export to compressor (1);
When constant temperature dehumidification, described electric expansion valve A (8) standard-sized sheet is not to carry out throttling, 1, described evaporimeter (5), for described liquid refrigerant and environment are carried out exchange heat, to reduce the temperature of described liquid refrigerant and after making environment temperature raise, and to export to throttling arrangement (6) by reducing the liquid refrigerant after temperature;
Described throttling arrangement (6), the described liquid refrigerant that 1, described evaporimeter (5) exports is carried out throttling, to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to output to 2, evaporimeter (7);
2, described evaporimeter (7), cold-producing medium and the environment temperature of the described gas-liquid two-phase exported by described throttling arrangement (6) carry out exchange heat, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, reduce environment temperature with after dehumidifying to described environment, export to compressor (1).
In the first possible implementation of first aspect, by described evaporimeter (3), be divided into evaporimeter 1 (5) and 2, evaporimeter (7), throttling arrangement (6) aspect is in series with between described evaporimeter 1 (5) and 2, described evaporimeter (7), locate to disconnect forming 2 some refrigerant pipelines specifically for the refrigerant tubing of described evaporimeter (3) inner (11) is preset between the air inlet (9) and the gas outlet (10) of described evaporimeter of described evaporimeter, the refrigerant tubing of described evaporimeter inside (11) is connected between the air inlet (9) of described evaporimeter and the gas outlet (10) of described evaporimeter, the refrigerant tubing (21) of the described evaporimeter (3) be connected with the air inlet (9) of described evaporimeter inner (11) is 1, evaporimeter (5), the refrigerant tubing (31) of the described evaporimeter (3) be connected with the gas outlet (10) of described evaporimeter inner (11) is 2, evaporimeter (7), described throttling arrangement (6) one end and described evaporimeter 1 (5) are connected, the other end and described evaporimeter 2 (7) are connected.
In conjunction with the first possible implementation of first aspect, in the implementation that the second is possible, locate to disconnect being formed in 2 some refrigerant pipelines the described refrigerant tubing of inner for described evaporimeter (3) (11) preset between the air inlet (9) and the gas outlet (10) of described evaporimeter of described evaporimeter, specifically for the pipeline of described evaporimeter inside is being more than or equal to 1/3 to any place disconnection between being less than or equal to 2/3 to form 2 section of tubing apart from described evaporator air inlet (9).
In conjunction with the implementation that first aspect the second is possible, in the implementation that the third is possible, specifically for the pipeline of described evaporimeter inside is disconnected to a place any between being less than or equal to 2/3 to be formed in 2 section of tubing, specifically for being disconnected apart from described evaporator air inlet (9) 1/2 place to form 2 section of tubing by refrigerant tubing inner for described evaporimeter (3) being more than or equal to 1/3 apart from described evaporator air inlet (9).
In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation, knockout (81), described knockout (81) one end is connected with described throttling arrangement (6), the other end is connected with 2, described evaporimeter, when being more than or equal to 2 groups of air inlets and gas outlet for the refrigerant tubing existence inner when described evaporimeter (3), for each organizes 2, the evaporimeter transmission cold-producing medium between described air inlet and gas outlet.
In conjunction with the implementation that first aspect four kinds is possible, in the 5th kind of possible implementation, described throttling arrangement (6), be connected between described evaporimeter 1 (5) and 2, described evaporimeter (7), after reducing for the temperature of described liquid refrigerant that 1, described evaporimeter is exported and pressure, output to 2, evaporimeter, specifically comprise:
Described throttling arrangement is an electric expansion valve, is connected between 1, described evaporimeter and 2, evaporimeter, after reducing, outputs to 2, evaporimeter for the temperature of described liquid refrigerant that exported by 1, described evaporimeter and pressure.
In conjunction with the implementation that first aspect five kinds is possible, in the 6th kind of possible implementation,
Described throttling arrangement, also comprise a magnetic valve, described magnetic valve is in parallel with described electric expansion valve, and during constant temperature dehumidification, described closed electromagnetic valve, described electric expansion valve is used for throttling.
In conjunction with the implementation that first aspect six kinds is possible, in the 7th kind of possible implementation,
Described throttling arrangement, comprises a magnetic valve and capillary paralleling, for when constant temperature dehumidification, by the closed electromagnetic valve in the middle of evaporimeter, carries out throttling by the capillary of parallel connection.
Second aspect provides a kind of underloading desiccant cooling method, it is characterized in that, comprising:
The pressure and temperature that enter the gaseous refrigerant of described compressor raise by compressor, and the gaseous refrigerant after increasing temperature and pressure is exported to condenser;
Described condenser by described increase temperature and pressure after gaseous refrigerant cooling with after being condensed into liquid refrigerant, export to evaporimeter;
The refrigerant tubing of described evaporimeter inside is divided into two parts, described evaporimeter to be divided into 1, evaporimeter and 2, evaporimeter;
When freezing and dehumidify, electric expansion valve A closes a part, throttling is carried out to the described liquid refrigerant inputted from described condenser, to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to export to described evaporimeter;
The cold-producing medium of the described gas-liquid two-phase that described electric expansion valve A exports by 1, described evaporimeter and 2, evaporimeter and environment carry out exchange heat, described throttling arrangement does not carry out throttling, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, for reducing environment temperature with after dehumidifying to described environment, export to compressor;
When constant temperature dehumidification, described electric expansion valve A standard-sized sheet is not to carry out throttling, 1, described evaporimeter, for described liquid refrigerant and environment are carried out exchange heat, to reduce the temperature of described liquid refrigerant and after making environment temperature raise, and to export to throttling arrangement by reducing the liquid refrigerant after temperature;
The described liquid refrigerant that 1, described evaporimeter exports is carried out throttling by described throttling arrangement, to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to output to 2, evaporimeter;
The cold-producing medium of the described gas-liquid two-phase that described throttling arrangement exports by 2, described evaporimeter and environment temperature carry out exchange heat, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, reduce environment temperature with after dehumidifying to described environment, export to compressor.
In the first possible implementation of second aspect, described the refrigerant tubing of described evaporimeter inside is being divided into two parts, described evaporimeter to be divided into 1, evaporimeter and 2, evaporimeter, specifically comprise: the refrigerant tubing of described evaporimeter inside is preset between the air inlet and the gas outlet of described evaporimeter of described evaporimeter and locates to disconnect forming 2 some refrigerant pipelines, the refrigerant tubing of described evaporimeter inside is connected between the air inlet of described evaporimeter and the gas outlet of described evaporimeter, the refrigerant tubing be connected with the air inlet of described evaporimeter is 1, evaporimeter, the refrigerant tubing be connected with the gas outlet of described evaporimeter is 2, evaporimeter, described throttling arrangement one end is connected with 1, described evaporimeter, the other end is connected with 2, described evaporimeter.
In conjunction with the first possible implementation of second aspect, in the implementation that the second is possible, described being preset between the air inlet and the gas outlet of described evaporimeter of described evaporimeter by the refrigerant tubing of described evaporimeter inside is located to disconnect forming 2 some refrigerant pipelines, specifically comprises:
The refrigerant tubing of described evaporimeter inside is disconnected to a place any between being less than or equal to 2/3 to form 2 some refrigerant pipelines being more than or equal to 1/3 apart from described evaporator air inlet.
In conjunction with the implementation that second aspect the second is possible, in the implementation that the third is possible, described the refrigerant tubing of described evaporimeter inside to be disconnected to form 2 some refrigerant pipelines to a place any between being less than or equal to 2/3 being more than or equal to 1/3 apart from described evaporator air inlet, specifically comprises:
The refrigerant tubing of described evaporimeter inside is disconnected apart from described evaporator air inlet 1/2 place to form 2 some refrigerant pipelines.
In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation, when the refrigerant tubing existence of described evaporimeter inside is more than or equal to 2 groups of air inlets and gas outlet, knockout is that each organizes 2, the evaporimeter transmission cold-producing medium between described air inlet and gas outlet, described knockout one end is connected with described throttling arrangement, and the other end is connected with 2, described evaporimeter.
In conjunction with second aspect the 4th kind of possible implementation, in the 5th kind of possible implementation, described being preset between the air inlet and the gas outlet of described evaporimeter of described evaporimeter by the refrigerant tubing of described evaporimeter inside is located to disconnect forming 2 some refrigerant pipelines, specifically comprises:
The refrigerant tubing of described evaporimeter inside is disconnected to a place any between being less than or equal to 2/3 to form 2 some refrigerant pipelines being more than or equal to 1/3 apart from described evaporator air inlet.
In conjunction with second aspect the 5th kind of possible implementation, in the 6th kind of possible implementation, described the refrigerant tubing of described evaporimeter inside to be disconnected to form 2 some refrigerant pipelines to a place any between being less than or equal to 2/3 being more than or equal to 1/3 apart from described evaporator air inlet, specifically comprises:
The refrigerant tubing of described evaporimeter inside is disconnected apart from described evaporator air inlet 1/2 place to form 2 some refrigerant pipelines.
In conjunction with second aspect the 6th kind of possible implementation, the 7th kind of possible implementation
In, when the refrigerant tubing existence of described evaporimeter inside is more than or equal to 2 groups of air inlets and gas outlet, knockout is that each organizes 2, the evaporimeter transmission cold-producing medium between described air inlet and gas outlet, described knockout one end is connected with described throttling arrangement, and the other end is connected with 2, described evaporimeter.
The third aspect provides a kind of data center, comprises communication equipment, it is characterized in that, also comprises: the underloading dehydrating unit as described in claim 1-8, for carrying out refrigerated dehumidification or constant temperature dehumidification to described communication equipment.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 realizes schematic diagram for the inside of a kind of underloading desiccant cooling device that the embodiment of the present invention provides;
Fig. 2 realizes schematic diagram for the inside of a kind of existing evaporimeter that the embodiment of the present invention provides;
Fig. 3 for the embodiment of the present invention provide a kind of improve after the inside of evaporimeter realize schematic diagram;
Fig. 4 realizes schematic diagram for the inside of a kind of underloading desiccant cooling device that the embodiment of the present invention provides;
Fig. 5 realizes schematic diagram for the inside of the another kind of underloading desiccant cooling device that the embodiment of the present invention provides;
Fig. 6 realizes schematic diagram for the inside of the another kind of underloading desiccant cooling device that the embodiment of the present invention provides;
The flow chart of a kind of underloading desiccant cooling method that Fig. 7 provides for the embodiment of the present invention;
A kind of data center that Fig. 8 provides for the embodiment of the present invention realizes schematic diagram;
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, a kind of inside of underloading desiccant cooling device that the embodiment of the present invention provides realizes schematic diagram;
Precision air conditioner machine is widely used in the high-accuracy environment such as computer room, programme-controlled exchange machine room, satellite mobile station, data container, the indices such as temperature, humidity, air flow method of such environment to air has very high requirement, must by annual 365 days, 24 hours every days safe and reliable operation Special machine room precision air conditioner equipment ensure.
A kind of constant temperature dehumidification apparatus of the present invention is connected and composed by compressor, the condenser being positioned at outdoor compressor downstream and the throttle mechanism be positioned in the middle of the evaporimeter of indoor upstream of compressor and electric expansion valve and evaporimeter.The present invention is widely used in the high-accuracy environment such as computer room, programme-controlled exchange machine room, satellite mobile station, data container, certainly, is also applicable to domestic environments.Described a kind of underloading desiccant cooling device that the present embodiment provides, comprise compressor (1), condenser (2) and evaporimeter (3), and electric expansion valve (8), described compressor (1) input is connected with described evaporimeter (3) output, described compressor (1) output is connected with described condenser (2) input, described condenser (2) output is connected with described evaporimeter (3) input, described electric expansion valve A (8) is series between described condenser (2) and described evaporimeter (3), refrigerant tubing (4) is all used to be connected between described each end, it is characterized in that:
Described compressor (1), for the gaseous refrigerant entering described compressor (1) is compressed, raise with the pressure and temperature that make described gaseous refrigerant, and the gaseous refrigerant after increasing temperature and pressure is exported to condenser (2);
Described condenser (2), for by described increase temperature and pressure after gaseous refrigerant lower the temperature, export to evaporimeter (3) after being condensed into liquid refrigerant to make described gaseous refrigerant;
Described evaporimeter (3), is divided into evaporimeter 1 (5) and 2, evaporimeter (7), is in series with throttling arrangement (6) between described evaporimeter 1 (5) and 2, described evaporimeter (7);
When freezing and dehumidify, described electric expansion valve A (8) closes a part, throttling is carried out to the described liquid refrigerant inputted from described condenser (2), to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to export to described evaporimeter (3);
The cold-producing medium of the described gas-liquid two-phase that described electric expansion valve A (8) exports by described evaporimeter 1 (5) and 2, evaporimeter (7) and environment carry out exchange heat, described throttling arrangement (6) does not carry out throttling, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, for reducing environment temperature with after dehumidifying to described environment, export to compressor (1);
When constant temperature dehumidification, described electric expansion valve A (8) standard-sized sheet is not to carry out throttling, 1, described evaporimeter (5), for described liquid refrigerant and environment are carried out exchange heat, to reduce the temperature of described liquid refrigerant and after making environment temperature raise, and to export to throttling arrangement (6) by reducing the liquid refrigerant after temperature; Particularly, it is so the liquid of high pressure that this cold of liquid state after the described reduction temperature now exported is appointed;
Described throttling arrangement (6), the described liquid refrigerant that 1, described evaporimeter (5) exports is carried out throttling, to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to output to 2, evaporimeter (7);
2, described evaporimeter (7), cold-producing medium and the environment temperature of the described gas-liquid two-phase exported by described throttling arrangement (6) carry out exchange heat, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, reduce environment temperature with after dehumidifying to described environment, export to compressor (1).
Beneficial effect: when needs constant temperature dehumidification, for cold-producing medium, higher than environment temperature flow to evaporimeter 1 from condenser after, carry out heat release, reduce temperature, now cold-producing medium is still high-pressure liquid; Then after liquid refrigerant flows through the throttle mechanism in the middle of evaporimeter, become the refrigerant liquid of low-pressure low-temperature, flow to evaporimeter 2, temperature, lower than environment temperature, is absorbed heat, and temperature raises, and flows back to compressor and circulate after becoming gas.Therefore, for cold-producing medium, when by evaporimeter 1 and evaporimeter 2, temperature first reduces rear rising;
And for room air, air first reduces through evaporator 2 temperature, then raise through evaporator 1 temperature, room air remains unchanged substantially through air-conditioning bulk temperature.Now, evaporimeter 2 can continue to dehumidify, and constantly reduces indoor humidity, just achieves the function of constant temperature dehumidification.
When needs freeze, described electric expansion valve A not exclusively opens, to carry out throttling.
Fig. 2 realizes schematic diagram for the inside of a kind of existing evaporimeter that the embodiment of the present invention provides;
As shown in Figure 2, the pipeline of evaporimeter 11 inside comprises upper and lower two parts, can comprise N number of part in existing evaporimeter, and N is value in the scope of positive integer as required.As shown in the first half in figure, described evaporimeter is according to the setting of internal pipeline, at a place of evaporimeter internal pipeline, described pipeline is divided into pipeline 21 and pipeline 31, accordingly, described evaporimeter is divided into 1, the evaporimeter being provided with pipeline 21 and 2, the evaporimeter being provided with pipeline 31.
Fig. 3 for the embodiment of the present invention provide a kind of improve after the inside of evaporimeter realize schematic diagram;
As shown in Figure 3, the refrigerant tubing of described evaporimeter 11 inside comprises upper and lower two parts, can comprise N number of part in the evaporimeter in reality, and N is value in the scope of positive integer as required.Example is divided into the first half, as shown in the first half, described evaporimeter is according to the length of internal refrigeration storage agent pipeline, at a place of evaporimeter internal refrigeration storage agent pipeline, pipeline is divided into pipeline 21 and pipeline 31, accordingly, described evaporimeter is divided into 1, the evaporimeter being provided with pipeline 21 and 2, the evaporimeter being provided with pipeline 31.Cold-producing medium, by 1, the described evaporimeter outflow being provided with described pipeline 21, flows through and comprises capillary 61 and the throttling arrangement of electric expansion valve 71, after flowing through current divider 81, enter 2, the evaporimeter being provided with pipeline 31, then flowed out by evaporimeter gas outlet 51.Optionally, capillary in described throttling arrangement 61 and electric expansion valve 71 can replace by various throttling arrangement of the prior art.
A kind of underloading desiccant cooling device that Fig. 4 provides for the embodiment of the present invention, described device comprises:
Compressor (1), condenser (2) and evaporimeter (3), and electric expansion valve (8), described compressor (1) input is connected with described evaporimeter (3) output, described compressor (1) output is connected with described condenser (2) input, described condenser (2) output is connected with described evaporimeter (3) input, described electric expansion valve A (8) is series between described condenser (2) and described evaporimeter (3), refrigerant tubing (4) is all used to be connected between described each end, it is characterized in that:
Described compressor (1), for the gaseous refrigerant entering described compressor (1) is compressed, raise with the pressure and temperature that make described gaseous refrigerant, and the gaseous refrigerant after increasing temperature and pressure is exported to condenser (2);
Described condenser (2), for by described increase temperature and pressure after gaseous refrigerant lower the temperature, export to evaporimeter (3) after being condensed into liquid refrigerant to make described gaseous refrigerant;
Described evaporimeter (3), is divided into evaporimeter 1 (5) and 2, evaporimeter (7), is in series with throttling arrangement (6) between described evaporimeter 1 (5) and 2, described evaporimeter (7);
When freezing and dehumidify, described electric expansion valve A (8) closes a part, throttling is carried out to the described liquid refrigerant inputted from described condenser (2), to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to export to described evaporimeter (3);
The cold-producing medium of the described gas-liquid two-phase that described electric expansion valve A (8) exports by described evaporimeter 1 (5) and 2, evaporimeter (7) and environment carry out exchange heat, described throttling arrangement (6) does not carry out throttling, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, for reducing environment temperature with after dehumidifying to described environment, export to compressor (1);
When constant temperature dehumidification, described electric expansion valve A (8) standard-sized sheet is not to carry out throttling, 1, described evaporimeter (5), for described liquid refrigerant and environment are carried out exchange heat, to reduce the temperature of described liquid refrigerant and after making environment temperature raise, and to export to throttling arrangement (6) by reducing the liquid refrigerant after temperature;
Described throttling arrangement (6), the described liquid refrigerant that 1, described evaporimeter (5) exports is carried out throttling, to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to output to 2, evaporimeter (7);
2, described evaporimeter (7), cold-producing medium and the environment temperature of the described gas-liquid two-phase exported by described throttling arrangement (6) carry out exchange heat, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, reduce environment temperature with after dehumidifying to described environment, export to compressor (1).
Further, described device also comprises electric expansion valve A.When needs constant temperature dehumidification, electric expansion valve A opens do not carry out throttling completely, and the throttling arrangement in the middle of evaporimeter carries out throttling; During refrigeration, described electric expansion valve A not exclusively opens, to carry out throttling.
Further, the refrigerant tubing of described evaporimeter inside is being divided into two parts, described evaporimeter to be divided into 1, evaporimeter and evaporimeter 2 aspects, described evaporimeter is located to disconnect forming 2 section of tubing specifically for being preset between the air inlet and the gas outlet of described evaporimeter of described evaporimeter by the pipeline of described evaporimeter inside, the pipeline of described evaporimeter inside is connected between the air inlet of described evaporimeter and the gas outlet of described evaporimeter, the pipeline be connected with the air inlet of described evaporimeter is 1, evaporimeter, the pipeline be connected with the gas outlet of described evaporimeter is 2, evaporimeter, described throttling arrangement one end is connected with 1, described evaporimeter, the other end is connected with 2, described evaporimeter.Described default place, the pipeline between the air inlet and the gas outlet of described evaporimeter of described evaporimeter, the arranging of the position at described default place must meet 1, described evaporimeter and 2, described evaporimeter can play effect in the present embodiment separately.
Further, locate to disconnect being formed in 2 section of tubing described to be preset between the air inlet and the gas outlet of described evaporimeter of described evaporimeter by the pipeline of described evaporimeter inside, described evaporimeter is specifically for being more than or equal to 1/3 to place disconnection any between being less than or equal to 2/3 to form 2 section of tubing by the pipeline of described evaporimeter inside apart from described evaporator air inlet.
Further, at described evaporimeter specifically for being disconnected to a place any between being less than or equal to 2/3 to be formed in 2 section of tubing being more than or equal to 1/3 apart from described evaporator air inlet by the pipeline of described evaporimeter inside, described evaporimeter is specifically for disconnecting the pipeline of described evaporimeter inside to form 2 section of tubing apart from described evaporator air inlet 1/2 place.
Further, described underloading desiccant cooling device also comprises: knockout, described knockout one end is connected with described throttling arrangement, the other end is connected with 2, described evaporimeter, when being more than or equal to 2 groups of air inlets and gas outlet for existing when the pipeline of described evaporimeter inside, for each organizes 2, the evaporimeter transmission cold-producing medium between described air inlet and gas outlet.
Further, described throttling arrangement, is connected between 1, described evaporimeter and 2, evaporimeter, after reducing, outputs to 2, evaporimeter, specifically comprises for the temperature of described liquid refrigerant that exported by 1, described evaporimeter and pressure:
Described throttling arrangement is an electric expansion valve, is connected between 1, described evaporimeter and 2, evaporimeter, after reducing, outputs to 2, evaporimeter for the temperature of described liquid refrigerant that exported by 1, described evaporimeter and pressure.Alternatively, as shown in Figure 5, described throttling arrangement, also comprise a magnetic valve, described magnetic valve is in parallel with described electric expansion valve, and during constant temperature dehumidification, described closed electromagnetic valve, carries out throttling by the electric expansion valve of parallel connection.
Beneficial effect: when not dehumidifying when normal refrigeration, throttling is carried out by electric expansion valve A, throttling arrangement in the middle of evaporimeter is opened completely, do not play throttling action, the cold-producing medium of discharging from compressor is the gaseous state of HTHP, through condenser, to outdoor air heat release, become the refrigerant liquid of high pressure-temperature, after electric expansion valve A, become the refrigerant liquid of low-pressure low-temperature, temperature is lower than indoor temperature, absorb heat, thus the indoor air temperature reduced by evaporimeter, achieve the function of refrigeration, the gaseous state that low-pressure temperature raises is become after cold-producing medium heat absorption, flow back to compressor and carry out next one circulation.
When needs constant temperature dehumidification, electric expansion valve A opens do not carry out throttling completely, and the throttling arrangement in the middle of evaporimeter carries out throttling.For cold-producing medium, higher than environment temperature flow to evaporimeter 1 from condenser after, carry out heat release, reduce temperature; Then after liquid refrigerant flows through the throttle mechanism in the middle of evaporimeter, become the refrigerant liquid of low-pressure low-temperature, flow to evaporimeter 2, temperature, lower than environment temperature, is absorbed heat, and temperature raises, and flows back to compressor and circulate after becoming gas.Therefore, for cold-producing medium, when by evaporimeter 1 and evaporimeter 2, temperature first reduces rear rising.
A kind of underloading desiccant cooling device that Fig. 6 provides for the embodiment of the present invention, as shown in Figure 6, described device comprises:
Compressor (1), condenser (2) and evaporimeter (3), and electric expansion valve (8), described compressor (1) input is connected with described evaporimeter (3) output, described compressor (1) output is connected with described condenser (2) input, described condenser (2) output is connected with described evaporimeter (3) input, described electric expansion valve A (8) is series between described condenser (2) and described evaporimeter (3), refrigerant tubing (4) is all used to be connected between described each end, it is characterized in that:
Described compressor (1), for the gaseous refrigerant entering described compressor (1) is compressed, raise with the pressure and temperature that make described gaseous refrigerant, and the gaseous refrigerant after increasing temperature and pressure is exported to condenser (2);
Described condenser (2), for by described increase temperature and pressure after gaseous refrigerant lower the temperature, export to evaporimeter (3) after being condensed into liquid refrigerant to make described gaseous refrigerant;
Described evaporimeter (3), is divided into evaporimeter 1 (5) and 2, evaporimeter (7), is in series with throttling arrangement (6) between described evaporimeter 1 (5) and 2, described evaporimeter (7);
When freezing and dehumidify, described electric expansion valve A (8) closes a part, throttling is carried out to the described liquid refrigerant inputted from described condenser (2), to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to export to described evaporimeter (3);
The cold-producing medium of the described gas-liquid two-phase that described electric expansion valve A (8) exports by described evaporimeter 1 (5) and 2, evaporimeter (7) and environment carry out exchange heat, described throttling arrangement (6) does not carry out throttling, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, for reducing environment temperature with after dehumidifying to described environment, export to compressor (1);
When constant temperature dehumidification, described electric expansion valve A (8) standard-sized sheet is not to carry out throttling, 1, described evaporimeter (5), for described liquid refrigerant and environment are carried out exchange heat, to reduce the temperature of described liquid refrigerant and after making environment temperature raise, and to export to throttling arrangement (6) by reducing the liquid refrigerant after temperature;
Described throttling arrangement (6), the described liquid refrigerant that 1, described evaporimeter (5) exports is carried out throttling, to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to output to 2, evaporimeter (7);
2, described evaporimeter (7), cold-producing medium and the environment temperature of the described gas-liquid two-phase exported by described throttling arrangement (6) carry out exchange heat, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, reduce environment temperature with after dehumidifying to described environment, export to compressor (1).
Further, the refrigerant tubing of described evaporimeter inside is being divided into two parts, described evaporimeter to be divided into 1, evaporimeter and evaporimeter 2 aspects, described evaporimeter is located to disconnect forming 2 section of tubing specifically for being preset between the air inlet and the gas outlet of described evaporimeter of described evaporimeter by the pipeline of described evaporimeter inside, the pipeline of described evaporimeter inside is connected between the air inlet of described evaporimeter and the gas outlet of described evaporimeter, the pipeline be connected with the air inlet of described evaporimeter is 1, evaporimeter, the pipeline be connected with the gas outlet of described evaporimeter is 2, evaporimeter, described throttling arrangement one end is connected with 1, described evaporimeter, the other end is connected with 2, described evaporimeter.Described default place, the pipeline between the air inlet and the gas outlet of described evaporimeter of described evaporimeter, the arranging of the position at described default place must meet 1, described evaporimeter and 2, described evaporimeter can play effect in the present embodiment separately.
Further, locate to disconnect being formed in 2 section of tubing described to be preset between the air inlet and the gas outlet of described evaporimeter of described evaporimeter by the pipeline of described evaporimeter inside, described evaporimeter is specifically for being more than or equal to 1/3 to place disconnection any between being less than or equal to 2/3 to form 2 section of tubing by the pipeline of described evaporimeter inside apart from described evaporator air inlet.
Further, at described evaporimeter specifically for being disconnected to a place any between being less than or equal to 2/3 to be formed in 2 section of tubing being more than or equal to 1/3 apart from described evaporator air inlet by the pipeline of described evaporimeter inside, described evaporimeter is specifically for disconnecting the pipeline of described evaporimeter inside to form 2 section of tubing apart from described evaporator air inlet 1/2 place.
Further, described underloading desiccant cooling device also comprises: knockout, described knockout one end is connected with described throttling arrangement, the other end is connected with 2, described evaporimeter, when being more than or equal to 2 groups of air inlets and gas outlet for existing when the pipeline of described evaporimeter inside, for each organizes 2, the evaporimeter transmission cold-producing medium between described air inlet and gas outlet.
Further, described throttling arrangement, is connected between 1, described evaporimeter and 2, evaporimeter, after reducing, outputs to 2, evaporimeter, specifically comprises for the temperature of described liquid refrigerant that exported by 1, described evaporimeter and pressure:
Described throttling arrangement, comprises a magnetic valve and capillary paralleling, for when constant temperature dehumidification, by the closed electromagnetic valve in the middle of evaporimeter, carries out throttling by the capillary of parallel connection.
Beneficial effect: when needs constant temperature dehumidification, for cold-producing medium, higher than environment temperature after flowing to evaporimeter 1, carries out heat release, reduces temperature from condenser; Then after liquid refrigerant flows through the throttle mechanism in the middle of evaporimeter, become the refrigerant liquid of low-pressure low-temperature, flow to evaporimeter 2, temperature, lower than environment temperature, is absorbed heat, and temperature raises, and flows back to compressor and circulate after becoming gas.Therefore, for cold-producing medium, when by evaporimeter 1 and evaporimeter 2, temperature first reduces rear rising;
And for room air, air first reduces through evaporator 2 temperature, then raise through evaporator 1 temperature, room air remains unchanged substantially through air-conditioning bulk temperature.Now, evaporimeter 2 can continue to dehumidify, and constantly reduces indoor humidity, just achieves the function of constant temperature dehumidification.
A kind of underloading desiccant cooling method that Fig. 7 provides for the embodiment of the present invention; As shown in Figure 8, the present embodiment step is as follows:
S701: the pressure and temperature that enter the gaseous refrigerant of described compressor raise by compressor, and the gaseous refrigerant after increasing temperature and pressure is exported to condenser;
S702: described condenser by described increase temperature and pressure after gaseous refrigerant cooling with after being condensed into liquid refrigerant, export to evaporimeter;
S703: the refrigerant tubing of described evaporimeter inside is divided into two parts, to be divided into 1, evaporimeter and 2, evaporimeter by described evaporimeter;
S704
When freezing and dehumidify, electric expansion valve A closes a part, throttling is carried out to the described liquid refrigerant inputted from described condenser, to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to export to described evaporimeter;
S705: the cold-producing medium of the described gas-liquid two-phase that described electric expansion valve A exports by 1, described evaporimeter and 2, evaporimeter and environment carry out exchange heat, described throttling arrangement does not carry out throttling, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, for reducing environment temperature with after dehumidifying to described environment, export to compressor;
S706: when constant temperature dehumidification, described electric expansion valve A standard-sized sheet is not to carry out throttling, 1, described evaporimeter, for described liquid refrigerant and environment are carried out exchange heat, to reduce the temperature of described liquid refrigerant and after making environment temperature raise, and to export to throttling arrangement by reducing the liquid refrigerant after temperature; Further, S707: the described liquid refrigerant that 1, described evaporimeter exports is carried out throttling by described throttling arrangement, to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to output to 2, evaporimeter;
S708: the cold-producing medium of the described gas-liquid two-phase that described throttling arrangement exports by 2, described evaporimeter and environment temperature carry out exchange heat, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, reduce environment temperature with after dehumidifying to described environment, export to compressor.Beneficial effect: when not dehumidifying when normal refrigeration, throttling is carried out by electric expansion valve A, throttling arrangement in the middle of evaporimeter is opened completely, do not play throttling action, the cold-producing medium of discharging from compressor is the gaseous state of HTHP, through condenser, to outdoor air heat release, become the refrigerant liquid of high pressure-temperature, after electric expansion valve A, become the refrigerant liquid of low-pressure low-temperature, temperature is lower than indoor temperature, absorb heat, thus the indoor air temperature reduced by evaporimeter, achieve the function of refrigeration, the gaseous state that low-pressure temperature raises is become after cold-producing medium heat absorption, flow back to compressor and carry out next one circulation.
When needs constant temperature dehumidification, electric expansion valve A opens do not carry out throttling completely, and the throttling arrangement in the middle of evaporimeter carries out throttling.For cold-producing medium, higher than environment temperature flow to evaporimeter 1 from condenser after, carry out heat release, reduce temperature; Then after liquid refrigerant flows through the throttle mechanism in the middle of evaporimeter, become the refrigerant liquid of low-pressure low-temperature, flow to evaporimeter 2, temperature, lower than environment temperature, is absorbed heat, and temperature raises, and flows back to compressor and circulate after becoming gas.Therefore, for cold-producing medium, when by evaporimeter 1 and evaporimeter 2, temperature first reduces rear rising.
Further, S709: described underloading desiccant cooling method, also comprise: described the refrigerant tubing of described evaporimeter inside is being divided into two parts, described evaporimeter to be divided into 1, evaporimeter and 2, evaporimeter, specifically comprise: the pipeline of described evaporimeter inside is preset between the air inlet and the gas outlet of described evaporimeter of described evaporimeter and locates to disconnect forming 2 section of tubing, the pipeline of described evaporimeter inside is connected between the air inlet of described evaporimeter and the gas outlet of described evaporimeter, the pipeline be connected with the air inlet of described evaporimeter is 1, evaporimeter, the pipeline be connected with the gas outlet of described evaporimeter is 2, evaporimeter, described throttling arrangement one end is connected with 1, described evaporimeter, the other end is connected with 2, described evaporimeter.
Further, S710: described underloading desiccant cooling method, also comprise: described being preset between the air inlet and the gas outlet of described evaporimeter of described evaporimeter by the pipeline of described evaporimeter inside locate to disconnect forming 2 section of tubing, specifically comprises: the pipeline of described evaporimeter inside is being more than or equal to 1/3 to place disconnection any between being less than or equal to 2/3 to form 2 section of tubing apart from described evaporator air inlet.
Further, S711: described underloading desiccant cooling method, also comprise: described evaporimeter, specifically for being disconnected to a place any between being less than or equal to 2/3 to form 2 section of tubing being more than or equal to 1/3 apart from described evaporator air inlet by the pipeline of described evaporimeter inside, specifically comprises:
Described evaporimeter is specifically for disconnecting the pipeline of described evaporimeter inside to form 2 section of tubing apart from described evaporator air inlet 1/2 place.
Further, S712: described underloading desiccant cooling method, also comprises:
When the pipeline existence of described evaporimeter inside is more than or equal to 2 groups of air inlets and gas outlet, knockout is that each organizes 2, the evaporimeter transmission cold-producing medium between described air inlet and gas outlet,
Described knockout one end is connected with described throttling arrangement, and the other end is connected with 2, described evaporimeter.
Beneficial effect: when not dehumidifying when normal refrigeration, throttling is carried out by electric expansion valve A, throttling arrangement in the middle of evaporimeter is opened completely, do not play throttling action, the cold-producing medium of discharging from compressor is the gaseous state of HTHP, through condenser, to outdoor air heat release, become the refrigerant liquid of high pressure-temperature, after electric expansion valve A, become the refrigerant liquid of low-pressure low-temperature, temperature is lower than indoor temperature, absorb heat, thus the indoor air temperature reduced by evaporimeter, achieve the function of refrigeration, the gaseous state that low-pressure temperature raises is become after cold-producing medium heat absorption, flow back to compressor and carry out next one circulation.
When needs constant temperature dehumidification, electric expansion valve A opens do not carry out throttling completely, and the throttling arrangement in the middle of evaporimeter carries out throttling.For cold-producing medium, higher than environment temperature flow to evaporimeter 1 from condenser after, carry out heat release, reduce temperature; Then after liquid refrigerant flows through the throttle mechanism in the middle of evaporimeter, become the refrigerant liquid of low-pressure low-temperature, flow to evaporimeter 2, temperature, lower than environment temperature, is absorbed heat, and temperature raises, and flows back to compressor and circulate after becoming gas.Therefore, for cold-producing medium, when by evaporimeter 1 and evaporimeter 2, temperature first reduces rear rising.
A kind of data center as described in Figure 8, is characterized in that, comprise communication equipment, it is characterized in that, also comprise: the underloading dehydrating unit as described in claim 1-8, for carrying out refrigerated dehumidification or constant temperature dehumidification to described communication equipment.
Described a kind of underloading desiccant cooling device comprises:
Compressor (1), condenser (2) and evaporimeter (3), and electric expansion valve (8), described compressor (1) input is connected with described evaporimeter (3) output, described compressor (1) output is connected with described condenser (2) input, described condenser (2) output is connected with described evaporimeter (3) input, described electric expansion valve A (8) is series between described condenser (2) and described evaporimeter (3), refrigerant tubing (4) is all used to be connected between described each end, it is characterized in that:
Described compressor (1), for the gaseous refrigerant entering described compressor (1) is compressed, raise with the pressure and temperature that make described gaseous refrigerant, and the gaseous refrigerant after increasing temperature and pressure is exported to condenser (2);
Described condenser (2), for by described increase temperature and pressure after gaseous refrigerant lower the temperature, export to evaporimeter (3) after being condensed into liquid refrigerant to make described gaseous refrigerant;
Described evaporimeter (3), is divided into evaporimeter 1 (5) and 2, evaporimeter (7), is in series with throttling arrangement (6) between described evaporimeter 1 (5) and 2, described evaporimeter (7);
When freezing and dehumidify, described electric expansion valve A (8) closes a part, throttling is carried out to the described liquid refrigerant inputted from described condenser (2), to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to export to described evaporimeter (3);
The cold-producing medium of the described gas-liquid two-phase that described electric expansion valve A (8) exports by described evaporimeter 1 (5) and 2, evaporimeter (7) and environment carry out exchange heat, described throttling arrangement (6) does not carry out throttling, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, for reducing environment temperature with after dehumidifying to described environment, export to compressor (1);
When constant temperature dehumidification, described electric expansion valve A (8) standard-sized sheet is not to carry out throttling, 1, described evaporimeter (5), for described liquid refrigerant and environment are carried out exchange heat, to reduce the temperature of described liquid refrigerant and after making environment temperature raise, and to export to throttling arrangement (6) by reducing the liquid refrigerant after temperature;
Described throttling arrangement (6), the described liquid refrigerant that 1, described evaporimeter (5) exports is carried out throttling, to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to output to 2, evaporimeter (7);
2, described evaporimeter (7), cold-producing medium and the environment temperature of the described gas-liquid two-phase exported by described throttling arrangement (6) carry out exchange heat, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, reduce environment temperature with after dehumidifying to described environment, export to compressor (1).
Further, described device also comprises electric expansion valve A.When needs constant temperature dehumidification, electric expansion valve A opens do not carry out throttling completely, and the throttling arrangement in the middle of evaporimeter carries out throttling; During refrigeration, described electric expansion valve A not exclusively opens, to carry out throttling.
Further, the refrigerant tubing of described evaporimeter inside is being divided into two parts, described evaporimeter to be divided into 1, evaporimeter and evaporimeter 2 aspects, described evaporimeter is located to disconnect forming 2 section of tubing specifically for being preset between the air inlet and the gas outlet of described evaporimeter of described evaporimeter by the pipeline of described evaporimeter inside, the pipeline of described evaporimeter inside is connected between the air inlet of described evaporimeter and the gas outlet of described evaporimeter, the pipeline be connected with the air inlet of described evaporimeter is 1, evaporimeter, the pipeline be connected with the gas outlet of described evaporimeter is 2, evaporimeter, described throttling arrangement one end is connected with 1, described evaporimeter, the other end is connected with 2, described evaporimeter.Described default place, the pipeline between the air inlet and the gas outlet of described evaporimeter of described evaporimeter, the arranging of the position at described default place must meet 1, described evaporimeter and 2, described evaporimeter can play effect in the present embodiment separately.
Further, locate to disconnect being formed in 2 section of tubing described to be preset between the air inlet and the gas outlet of described evaporimeter of described evaporimeter by the pipeline of described evaporimeter inside, described evaporimeter is specifically for being more than or equal to 1/3 to place disconnection any between being less than or equal to 2/3 to form 2 section of tubing by the pipeline of described evaporimeter inside apart from described evaporator air inlet.
Further, at described evaporimeter specifically for being disconnected to a place any between being less than or equal to 2/3 to be formed in 2 section of tubing being more than or equal to 1/3 apart from described evaporator air inlet by the pipeline of described evaporimeter inside, described evaporimeter is specifically for disconnecting the pipeline of described evaporimeter inside to form 2 section of tubing apart from described evaporator air inlet 1/2 place.
Further, described underloading desiccant cooling device also comprises: knockout, described knockout one end is connected with described throttling arrangement, the other end is connected with 2, described evaporimeter, when being more than or equal to 2 groups of air inlets and gas outlet for existing when the pipeline of described evaporimeter inside, for each organizes 2, the evaporimeter transmission cold-producing medium between described air inlet and gas outlet.
Further, described throttling arrangement, is connected between 1, described evaporimeter and 2, evaporimeter, after reducing, outputs to 2, evaporimeter, specifically comprises for the temperature of described liquid refrigerant that exported by 1, described evaporimeter and pressure:
Described throttling arrangement is an electric expansion valve, is connected between 1, described evaporimeter and 2, evaporimeter, after reducing, outputs to 2, evaporimeter for the temperature of described liquid refrigerant that exported by 1, described evaporimeter and pressure.Alternatively, as shown in Figure 5, described throttling arrangement, also comprise a magnetic valve, described magnetic valve is in parallel with described electric expansion valve, and during constant temperature dehumidification, described closed electromagnetic valve, carries out throttling by the electric expansion valve of parallel connection.
Beneficial effect: when not dehumidifying when normal refrigeration, throttling is carried out by electric expansion valve A, throttling arrangement in the middle of evaporimeter is opened completely, do not play throttling action, the cold-producing medium of discharging from compressor is the gaseous state of HTHP, through condenser, to outdoor air heat release, become the refrigerant liquid of high pressure-temperature, after electric expansion valve A, become the refrigerant liquid of low-pressure low-temperature, temperature is lower than indoor temperature, absorb heat, thus the indoor air temperature reduced by evaporimeter, achieve the function of refrigeration, the gaseous state that low-pressure temperature raises is become after cold-producing medium heat absorption, flow back to compressor and carry out next one circulation.
When needs constant temperature dehumidification, electric expansion valve A opens do not carry out throttling completely, and the throttling arrangement in the middle of evaporimeter carries out throttling.For cold-producing medium, higher than environment temperature flow to evaporimeter 1 from condenser after, carry out heat release, reduce temperature; Then after liquid refrigerant flows through the throttle mechanism in the middle of evaporimeter, become the refrigerant liquid of low-pressure low-temperature, flow to evaporimeter 2, temperature, lower than environment temperature, is absorbed heat, and temperature raises, and flows back to compressor and circulate after becoming gas.Therefore, for cold-producing medium, when by evaporimeter 1 and evaporimeter 2, temperature first reduces rear rising.
The present invention can be realized by numerous embodiments, the embodiment of the present invention can be performed by specific software and hardware assembly, those skilled in the art think that the combination of various different software or hardware also can be used to the execution embodiment of the present invention, and the above-mentioned specific operation performed by hardware also can be implemented by software.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (14)

1. a underloading desiccant cooling device, comprise compressor (1), condenser (2) and evaporimeter (3), and electric expansion valve (8), described compressor (1) input is connected with described evaporimeter (3) output, described compressor (1) output is connected with described condenser (2) input, described condenser (2) output is connected with described evaporimeter (3) input, described electric expansion valve A (8) is series between described condenser (2) and described evaporimeter (3), refrigerant tubing (4) is all used to be connected between described each end, it is characterized in that:
Described compressor (1), for the gaseous refrigerant entering described compressor (1) is compressed, raise with the pressure and temperature that make described gaseous refrigerant, and the gaseous refrigerant after increasing temperature and pressure is exported to condenser (2);
Described condenser (2), for by described increase temperature and pressure after gaseous refrigerant lower the temperature, export to evaporimeter (3) after being condensed into liquid refrigerant to make described gaseous refrigerant;
Described evaporimeter (3), is divided into evaporimeter 1 (5) and 2, evaporimeter (7), is in series with throttling arrangement (6) between described evaporimeter 1 (5) and 2, described evaporimeter (7);
When freezing and dehumidify, described electric expansion valve A (8) closes a part, throttling is carried out to the described liquid refrigerant inputted from described condenser (2), to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to export to described evaporimeter (3);
The cold-producing medium of the described gas-liquid two-phase that described electric expansion valve A (8) exports by described evaporimeter 1 (5) and 2, evaporimeter (7) and environment carry out exchange heat, described throttling arrangement (6) does not carry out throttling, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, for reducing environment temperature with after dehumidifying to described environment, export to compressor (1);
When constant temperature dehumidification, described electric expansion valve A (8) standard-sized sheet is not to carry out throttling, 1, described evaporimeter (5), for described liquid refrigerant and environment are carried out exchange heat, to reduce the temperature of described liquid refrigerant and after making environment temperature raise, and to export to throttling arrangement (6) by reducing the liquid refrigerant after temperature;
Described throttling arrangement (6), the described liquid refrigerant that 1, described evaporimeter (5) exports is carried out throttling, to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to output to 2, evaporimeter (7);
2, described evaporimeter (7), cold-producing medium and the environment temperature of the described gas-liquid two-phase exported by described throttling arrangement (6) carry out exchange heat, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, reduce environment temperature with after dehumidifying to described environment, export to compressor (1).
2. underloading desiccant cooling device according to claim 1, is characterized in that,
By described evaporimeter (3), be divided into evaporimeter 1 (5) and 2, evaporimeter (7), throttling arrangement (6) aspect is in series with between described evaporimeter 1 (5) and 2, described evaporimeter (7), locate to disconnect forming 2 some refrigerant pipelines specifically for the refrigerant tubing of described evaporimeter (3) inner (11) is preset between the air inlet (9) and the gas outlet (10) of described evaporimeter of described evaporimeter, the refrigerant tubing of described evaporimeter inside (11) is connected between the air inlet (9) of described evaporimeter and the gas outlet (10) of described evaporimeter, the refrigerant tubing (21) of the described evaporimeter (3) be connected with the air inlet (9) of described evaporimeter inner (11) is 1, evaporimeter (5), the refrigerant tubing (31) of the described evaporimeter (3) be connected with the gas outlet (10) of described evaporimeter inner (11) is 2, evaporimeter (7), described throttling arrangement (6) one end and described evaporimeter 1 (5) are connected, the other end and described evaporimeter 2 (7) are connected.
3. underloading desiccant cooling device according to claim 2, is characterized in that,
Locate to disconnect being formed in 2 some refrigerant pipelines the described refrigerant tubing of inner for described evaporimeter (3) (11) preset between the air inlet (9) and the gas outlet (10) of described evaporimeter of described evaporimeter, specifically for the pipeline of described evaporimeter inside is being more than or equal to 1/3 to any place disconnection between being less than or equal to 2/3 to form 2 section of tubing apart from described evaporator air inlet (9).
4. underloading desiccant cooling device according to claim 3, is characterized in that,
Specifically for the pipeline of described evaporimeter inside is disconnected to a place any between being less than or equal to 2/3 to be formed in 2 section of tubing, specifically for being disconnected apart from described evaporator air inlet (9) 1/2 place to form 2 section of tubing by refrigerant tubing inner for described evaporimeter (3) being more than or equal to 1/3 apart from described evaporator air inlet (9).
5. underloading desiccant cooling device according to claim 4, is characterized in that, also comprise:
Knockout (81), described knockout (81) one end is connected with described throttling arrangement (6), the other end is connected with 2, described evaporimeter, when being more than or equal to 2 groups of air inlets and gas outlet for the refrigerant tubing existence inner when described evaporimeter (3), for each organizes 2, the evaporimeter transmission cold-producing medium between described air inlet and gas outlet.
6., according to the arbitrary described underloading desiccant cooling device of claim 1 to 5, it is characterized in that,
Described throttling arrangement (6), be connected between described evaporimeter 1 (5) and 2, described evaporimeter (7), after reducing for the temperature of described liquid refrigerant that 1, described evaporimeter is exported and pressure, output to 2, evaporimeter, specifically comprise:
Described throttling arrangement is an electric expansion valve, is connected between 1, described evaporimeter and 2, evaporimeter, after reducing, outputs to 2, evaporimeter for the temperature of described liquid refrigerant that exported by 1, described evaporimeter and pressure.
7. underloading desiccant cooling device according to claim 6, is characterized in that, described throttling arrangement, also comprise a magnetic valve, described magnetic valve is in parallel with described electric expansion valve, during constant temperature dehumidification, described closed electromagnetic valve, described electric expansion valve is used for throttling.
8., according to the arbitrary described underloading desiccant cooling device of claim 1 to 5, it is characterized in that, described throttling arrangement, comprise a magnetic valve and capillary paralleling, for when constant temperature dehumidification, by the closed electromagnetic valve in the middle of evaporimeter, carry out throttling by the capillary of parallel connection.
9. a underloading desiccant cooling method, is characterized in that, comprising:
The pressure and temperature that enter the gaseous refrigerant of described compressor raise by compressor, and the gaseous refrigerant after increasing temperature and pressure is exported to condenser;
Described condenser by described increase temperature and pressure after gaseous refrigerant cooling with after being condensed into liquid refrigerant, export to evaporimeter;
The refrigerant tubing of described evaporimeter inside is divided into two parts, described evaporimeter to be divided into 1, evaporimeter and 2, evaporimeter;
When freezing and dehumidify, electric expansion valve A closes a part, throttling is carried out to the described liquid refrigerant inputted from described condenser, to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to export to described evaporimeter;
The cold-producing medium of the described gas-liquid two-phase that described electric expansion valve A exports by 1, described evaporimeter and 2, evaporimeter and environment carry out exchange heat, described throttling arrangement does not carry out throttling, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, for reducing environment temperature with after dehumidifying to described environment, export to compressor;
When constant temperature dehumidification, described electric expansion valve A standard-sized sheet is not to carry out throttling, 1, described evaporimeter, for described liquid refrigerant and environment are carried out exchange heat, to reduce the temperature of described liquid refrigerant and after making environment temperature raise, and to export to throttling arrangement by reducing the liquid refrigerant after temperature;
The described liquid refrigerant that 1, described evaporimeter exports is carried out throttling by described throttling arrangement, to reduce the pressure of described liquid refrigerant and temperature and after forming the cold-producing medium of gas-liquid two-phase, to output to 2, evaporimeter;
The cold-producing medium of the described gas-liquid two-phase that described throttling arrangement exports by 2, described evaporimeter and environment temperature carry out exchange heat, the temperature of the cold-producing medium of described gas-liquid two-phase is raised to become gaseous refrigerant, reduce environment temperature with after dehumidifying to described environment, export to compressor.
10. underloading desiccant cooling method according to claim 9, is characterized in that,
Described the refrigerant tubing of described evaporimeter inside is being divided into two parts, described evaporimeter to be divided into 1, evaporimeter and 2, evaporimeter, specifically comprise: the refrigerant tubing of described evaporimeter inside is preset between the air inlet and the gas outlet of described evaporimeter of described evaporimeter and locates to disconnect forming 2 some refrigerant pipelines, the refrigerant tubing of described evaporimeter inside is connected between the air inlet of described evaporimeter and the gas outlet of described evaporimeter, the refrigerant tubing be connected with the air inlet of described evaporimeter is 1, evaporimeter, the refrigerant tubing be connected with the gas outlet of described evaporimeter is 2, evaporimeter, described throttling arrangement one end is connected with 1, described evaporimeter, the other end is connected with 2, described evaporimeter.
11. underloading desiccant cooling methods according to claim 10, is characterized in that,
Described being preset between the air inlet and the gas outlet of described evaporimeter of described evaporimeter by the refrigerant tubing of described evaporimeter inside is located to disconnect forming 2 some refrigerant pipelines, specifically comprises:
The refrigerant tubing of described evaporimeter inside is disconnected to a place any between being less than or equal to 2/3 to form 2 some refrigerant pipelines being more than or equal to 1/3 apart from described evaporator air inlet.
12. underloading desiccant cooling methods according to claim 11, is characterized in that,
Described the refrigerant tubing of described evaporimeter inside to be disconnected to form 2 some refrigerant pipelines to a place any between being less than or equal to 2/3 being more than or equal to 1/3 apart from described evaporator air inlet, specifically comprises:
The refrigerant tubing of described evaporimeter inside is disconnected apart from described evaporator air inlet 1/2 place to form 2 some refrigerant pipelines.
13. underloading desiccant cooling methods according to claim 12, is characterized in that, also comprise:
When the refrigerant tubing existence of described evaporimeter inside is more than or equal to 2 groups of air inlets and gas outlet, knockout is that each organizes 2, the evaporimeter transmission cold-producing medium between described air inlet and gas outlet, described knockout one end is connected with described throttling arrangement, and the other end is connected with 2, described evaporimeter.
14. 1 kinds of data centers, comprise communication equipment, it is characterized in that, also comprise: the underloading dehydrating unit as described in claim 1-8, for carrying out refrigerated dehumidification or constant temperature dehumidification to described communication equipment.
CN201510298623.6A 2015-05-30 2015-05-30 Light-load dehumidification and refrigeration method and device Pending CN104896637A (en)

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