CN102226557B - Waste cold utilization based air-conditioning system capable of realizing independent temperature-humidity control - Google Patents

Waste cold utilization based air-conditioning system capable of realizing independent temperature-humidity control Download PDF

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Publication number
CN102226557B
CN102226557B CN2011101109915A CN201110110991A CN102226557B CN 102226557 B CN102226557 B CN 102226557B CN 2011101109915 A CN2011101109915 A CN 2011101109915A CN 201110110991 A CN201110110991 A CN 201110110991A CN 102226557 B CN102226557 B CN 102226557B
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air
process gas
heat exchanger
dehumidification device
temperature
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CN2011101109915A
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CN102226557A (en
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王珂
刘旭
陈若莱
杨爱贤
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CISDI Engineering Co Ltd
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CISDI Engineering Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/274Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine

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Abstract

The invention discloses a waste cold utilization based air-conditioning system capable of independent temperature-humidity control. The system comprises a refrigerator, a process gas dehumidification device, a refrigerating agent pump and an indoor air dehumidification device. The refrigerator, a process gas heat exchanger in the process gas dehumidification device and the refrigerating agent pump are connected successively to form a circuit. The process gas heat exchanger is parallelly connected with an air heat exchanger of the indoor air dehumidification device. A condensate water outlet of a steam-water separator is sequentially communicated with a condensate water tank, a condensate water pump and a terminal refrigerating device which is fixed in a room. The system of the invention, by utilizing the refrigerant, simultaneously provides a low temperature cold source for the process gas dehumidification device and the indoor air dehumidification device for dehumidification. And the moisture content dehumidified by the process gas dehumidification device is used as a high temperature cold source for controlling indoor temperature so as to realize independent control of temperature and humidity. The system has high refrigerating efficiency, and also realizes reasonable utilization of waste cold of the process gas dehumidification device, so the energy consumption is low. In addition, the system with simple structure is convenient for popularization and implementation.

Description

Yu Leng utilizes temperature-humidity control air-conditioning system
Technical field
The present invention relates to air-conditioning technical field, particularly a kind of remaining cold energy-saving air conditioning system of process system that utilizes.
Background technology
From thermal comfort and health, require indoor temperature and humidity is controlled comprehensively.Summer, the human body comfort zone was 25 ℃, relative humidity 60%, and this moment, dew-point temperature was 16.6 ℃.At present the heat extraction hydrofuge of air conditioning mode is take temperature as the wet Combined Treatment mode of the heat of control parameter, by aerial cooler air is cooled off and dehumidification by condensation, the air of cool drying is sent into indoorly again, realizes the purpose of heat extraction hydrofuge.There are the following problems for the air conditioning mode of the wet Combined Treatment of existing heat:
1) energy waste of the wet Combined Treatment of heat.Because it is indoor remaining wet to adopt the dehumidification by condensation method to get rid of, the temperature of low-temperature receiver need to be lower than the dew-point temperature of room air, and the Consideration of Heat Transfer temperature difference and the medium transport temperature difference realize that 16.6 ℃ dew-point temperature needs approximately 7 ℃ sink temperature.In air-conditioning system, account for total load sensible heat load part over half, originally can adopt heat that the high temperature low-temperature receiver drains but to share 5~7 ℃ low temperature cold source with dehumidifying and process, cause energy to utilize waste on the grade.And although meet the demands through the air humidity (water capacity) behind the dehumidification by condensation, temperature is excessively low sometimes, also needs again heat, has caused further waste and the loss of the energy.
2) be difficult to adapt to the variation of heat moisture ratio.Air is cooled off and dehumidify by condensing mode, the sensible heat of its absorption and latent heat are than can only changing in certain scope, and the heat moisture ratio of building actual needs changes in the larger context.At present, generally be the requirement of the control of humidity being satisfied indoor temperature by sacrificing, cause indoor relative humidity too high or too low.Relative humidity is too high will to be caused uncomfortablely, need again further to reduce room temperature for improving thermal comfort, cause the unnecessary increase of energy consumption; It's low also will causing owing to outdoor enthalpy difference increase the energy consumption of the outer new wind of process chamber is increased is past relative humidity.
But the dehumidification process of room air separated Effective Raise refrigeration system efficient with temperature controlled processes and reduce the energy consumption of air-conditioning system, therefore, this area important development direction is exactly the air conditioning mode that adopts temperature humidity independently to control in recent years, and mostly warm and humid sub-control system is to adopt low temperature cold source to produce the mode of high temperature low-temperature receiver by heat exchange in practical implementation, refrigeration system is comparatively complicated, also have simultaneously the loss of cold in the producing of high temperature low-temperature receiver, energy consumption is higher.
The moisture temperature that existing most of process gas systems for moisture removal is deviate from is lower, relatively is suitable as the high temperature low-temperature receiver of warm and humid sub-control system.In the blast furnace dehumidifying blower system such as refrigeration dehumidifying system before the employing machine, process gas is lowered the temperature by 5~7 ℃ refrigerant cools, and the water vapour in the process gas is saturation state and separates out moisture to reach the purpose of moisture.The low high temperature low-temperature receiver that is suitable as in the warm and humid sub-control system of the moisture temperature of deviating from, but be difficult to recycle owing to containing the copper ion and the airborne dust that come from a large number heat exchanger surface.
Therefore, need to explore a kind of temperature-humidity control air-conditioning system, make it can utilize the moisture of deviating from such as the process gas systems for moisture removal of blast furnace dehumidifying blower system one class as the high temperature low-temperature receiver, the system that takes full advantage of is remaining cold, to reduce energy consumption, simultaneously, the labyrinth of air-conditioning system is simplified.
Summary of the invention
In view of this, the invention provides a kind of remaining cold temperature-humidity control air-conditioning system of utilizing, this air-conditioning system can take full advantage of remaining cold such as the process gas systems for moisture removal of blast furnace dehumidifying blower system one class, reaches the purpose that reduces air conditioning energy consumption.
A kind of remaining cold temperature-humidity control air-conditioning system of utilizing of the present invention, comprise refrigeration machine, process gas dehumidifying device, refrigeration working medium pump and indoor air dehumidification device, described process gas dehumidifying device comprises process gas entrance, process gas heat exchanger, steam-water separator and the process gas outlet that is communicated with successively, refrigeration machine, process gas heat exchanger and refrigeration working medium pump are in turn connected to form the loop, described indoor air dehumidification device comprises the air-supply passage that is communicated with the room and the air heat exchanger that is arranged on the air-supply passage, and described air heat exchanger and process gas heat exchanger are arranged in parallel; The condensation-water drain of described steam-water separator is communicated with successively and is provided with condensation water tank, condensate pump and is arranged at terminal refrigerating plant in the room.
Further, be provided with filter between described condensate pump and the terminal refrigerating plant;
Further, described indoor air dehumidification device comprises that also two ends are communicated in respectively the return air channel that is positioned on room and the air-supply passage before the air heat exchanger;
Further, exhaust outlet with flow control valve is set on the described return air channel;
Further, described terminal refrigerating plant is radiant panel, radiant wall or dry type air-coil.
Beneficial effect of the present invention: the remaining cold temperature-humidity control air-conditioning system of utilizing of the present invention, comprise refrigeration machine, process gas dehumidifying device, refrigeration working medium pump and indoor air dehumidification device, the process gas dehumidifying device comprises process gas entrance, process gas heat exchanger, steam-water separator and the process gas outlet that is communicated with successively, and refrigeration machine, process gas heat exchanger and refrigeration working medium pump are in turn connected to form the loop; The indoor air dehumidification device comprises air-supply passage and air heat exchanger, and air heat exchanger is in parallel with the process gas heat exchanger; The condensation-water drain of described steam-water separator is communicated with successively and is provided with condensation water tank, condensate pump and is arranged at terminal refrigerating plant in the room, the present invention utilizes cold-producing medium to provide low temperature cold source to dehumidify to process gas dehumidifying device and indoor air dehumidification device simultaneously, and the moisture that utilizes the process gas dehumidifying device to deviate from is realized the temperature-humidity control as the high temperature low-temperature receiver of indoor temperature control, refrigerating efficiency is high, simultaneously also rationally utilized the remaining cold of process gas dehumidifying device, energy consumption is low.In addition, the present invention is simple in structure, is convenient to promotion and implementation.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is structural representation of the present invention.
The specific embodiment
The present invention is described in detail below with reference to accompanying drawing, apply the present invention to the transformation to the blast furnace dehumidifying blower system, as shown in the figure: the remaining cold temperature-humidity control air-conditioning system of utilizing of the present embodiment, comprise refrigeration machine 1, process gas dehumidifying device 2, refrigeration working medium pump 3 and indoor air dehumidification device 4, the process gas dehumidifying device 2 of the present embodiment is the front refrigeration dehumidifying system of machine of blast furnace dehumidifying blower system, described process gas dehumidifying device 2 comprises the process gas entrance 2a that is communicated with successively, process gas heat exchanger 2b, steam-water separator 2c and process gas outlet 2d, process gas outlet 2d place is provided with a fan, refrigeration machine 1, process gas heat exchanger 2b and refrigeration working medium pump 3 are in turn connected to form the loop, process gas is passed through process gas entrance 2a successively under the fan effect, process gas heat exchanger 2b, steam-water separator 2c and process gas outlet 2d, and be cooled to below the dew point with process gas heat exchanger 2b heat exchange, described indoor air dehumidification device 4 comprises the air-supply passage 4a that is communicated with the room and the air heat exchanger 4b that is arranged on the air-supply passage 4a, it is outer and indoor that air-supply passage is used for communication chamber, be provided with an Air Blast fan in the air-supply passage, described air heat exchanger 4b and process gas heat exchanger 2b are arranged in parallel, and the working medium of utilizing refrigeration machine 1 to send is carried out freeze drying as low-temperature receiver to air; The condensation-water drain of described steam-water separator 2c is communicated with successively and is provided with condensation water tank 5, condensate pump 6 and is arranged at terminal refrigerating plant 7 in the room.After process gas dehumidifying device 2 was processed, the process gas water capacity was reduced to 10~12g/m 3, this moment, the dehumidification temperature was 9~12 ℃, and namely air and condensate temperature are 9~12 ℃ behind the dehumidification, condensed water is delivered to terminal refrigerating plant 7 realizes the control of Indoor Temperature hygroscopic water as the high temperature low-temperature receiver of room temperature lowering, and the Effective Raise refrigerating efficiency reduces energy consumption.
As further improvement in the technical proposal, be provided with filter 8 between described condensate pump 6 and the terminal refrigerating plant 7, to remove copper ion and the airborne dust that comes from heat exchanger surface in the condensed water.
As further improvement in the technical proposal, described indoor air dehumidification device 4 comprises that also two ends are communicated in respectively the return air channel 4c that is positioned on room and the air-supply passage 4a before the air heat exchanger 4b, exhaust outlet 4d with flow control valve is set on the described return air channel 4c, outdoor new wind and indoor return air are sucked by fan compile mixing in air-supply passage after, produce the air of low temperature and low humidity by the effect of aerial cooler, air in the room is got back to ventilation shaft by return air duct, the wherein part of return air drains into outdoor through exhaust duct, to reach the wetting balance of room air.
As further improvement in the technical proposal, described terminal refrigerating plant 7 is radiation and the heat convection faces such as radiant panel, radiant wall or dry type air-coil, and highly versatile is easy to implement.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (5)

1. more than one kind cold temperature-humidity control air-conditioning system of utilizing, comprise refrigeration machine (1), process gas dehumidifying device (2) and refrigeration working medium pump (3), described process gas dehumidifying device (2) comprises the process gas entrance (2a) that is communicated with successively, process gas heat exchanger (2b), steam-water separator (2c) and process gas outlet (2d), refrigeration machine (1), process gas heat exchanger (2b) and refrigeration working medium pump (3) are in turn connected to form the loop, it is characterized in that: also comprise indoor air dehumidification device (4), described indoor air dehumidification device (4) comprises the air-supply passage (4a) that is communicated with the room and is arranged at air heat exchanger (4b) on the air-supply passage (4a), and described air heat exchanger (4b) is arranged in parallel with process gas heat exchanger (2b); The condensation-water drain of described steam-water separator (2c) is communicated with successively and is provided with condensation water tank (5), condensate pump (6) and is arranged at terminal refrigerating plant (7) in the room.
2. the remaining cold temperature-humidity control air-conditioning system of utilizing according to claim 1 is characterized in that: be provided with filter (8) between described condensate pump (6) and the terminal refrigerating plant (7).
3. the remaining cold temperature-humidity control air-conditioning system of utilizing according to claim 1 and 2 is characterized in that: described indoor air dehumidification device (4) comprises also that two ends are communicated in respectively and is positioned at the front return air channel (4c) of air heat exchanger (4b) on room and the air-supply passage (4a).
4. the remaining cold temperature-humidity control air-conditioning system of utilizing according to claim 3 is characterized in that: the exhaust outlet (4d) with flow control valve is set on the described return air channel (4c).
5. the remaining cold temperature-humidity control air-conditioning system of utilizing according to claim 4, it is characterized in that: described terminal refrigerating plant (7) is radiant panel, radiant wall or dry type air-coil.
CN2011101109915A 2011-04-29 2011-04-29 Waste cold utilization based air-conditioning system capable of realizing independent temperature-humidity control Expired - Fee Related CN102226557B (en)

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Publication number Priority date Publication date Assignee Title
CN112665044B (en) * 2020-12-14 2022-03-15 格力电器(武汉)有限公司 Air conditioning system and control method thereof
CN112648695A (en) * 2020-12-29 2021-04-13 明德倍适(天津)科技有限公司 Radiation air conditioning system and temperature and humidity adjusting method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2705744Y (en) * 2003-02-05 2005-06-22 高隆普 Air conditioner without discharging condensation and dehumidifier
CN2861937Y (en) * 2005-10-10 2007-01-24 中冶赛迪工程技术股份有限公司 Circulating cooling apparatus
CN101644507A (en) * 2009-08-20 2010-02-10 中冶赛迪工程技术股份有限公司 Process gas cooling system
CN202032697U (en) * 2011-04-29 2011-11-09 中冶赛迪工程技术股份有限公司 Independent temperature-humidity control air conditioner system utilizing residual cool energy

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Publication number Priority date Publication date Assignee Title
JP2010060225A (en) * 2008-09-04 2010-03-18 Koseki Kk Air conditioner exhaust gas cooler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2705744Y (en) * 2003-02-05 2005-06-22 高隆普 Air conditioner without discharging condensation and dehumidifier
CN2861937Y (en) * 2005-10-10 2007-01-24 中冶赛迪工程技术股份有限公司 Circulating cooling apparatus
CN101644507A (en) * 2009-08-20 2010-02-10 中冶赛迪工程技术股份有限公司 Process gas cooling system
CN202032697U (en) * 2011-04-29 2011-11-09 中冶赛迪工程技术股份有限公司 Independent temperature-humidity control air conditioner system utilizing residual cool energy

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Title
JP特开2010-60225A 2010.03.18

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