CN102384555A - Full fresh air heat pump type constant temperature and constant humidity air conditioning system - Google Patents
Full fresh air heat pump type constant temperature and constant humidity air conditioning system Download PDFInfo
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- CN102384555A CN102384555A CN2011103885681A CN201110388568A CN102384555A CN 102384555 A CN102384555 A CN 102384555A CN 2011103885681 A CN2011103885681 A CN 2011103885681A CN 201110388568 A CN201110388568 A CN 201110388568A CN 102384555 A CN102384555 A CN 102384555A
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Abstract
The invention relates to a full fresh air heat pump type constant temperature and constant humidity air conditioning system which comprises at least two groups of working units mounted in an outdoor unit, an air treatment device mounted in an indoor unit, and a control system, wherein each group of working unit respectively comprises a compressor, an oil separator, a four-way reversing valve, an outdoor heat exchanger, a first expansion valve, a drier filter, a liquid supply electromagnetic valve, a second expansion valve and a liquid storage and accumulation energy-saving heat exchanger; the air treatment device comprises an indoor heat exchanger, a humidifier, a heater and a centrifugal fan which are arrayed in sequence; and the air treatment device is shared by all the working units. The air conditioning system overcomes the phenomenon that the normal operation of the units is influenced by changes of a full fresh air working condition and the phenomenon that a large quantity of energy is consumed by the units due to the adoption of electricity, steam, hot water and the like as heat sources during winter heating.
Description
Technical field
The present invention relates to a kind of air-conditioning system, be specifically related to the constant temperature and humidity air-conditioning system of the employing heat pump techniques under a kind of brand-new wind operating mode.
Background technology
Along with improving constantly of quality of the life, people are also increasingly high to indoor air quality requirement, especially various laboratories, the storage chamber also particularly urgent to high-quality air quality.At present; The means that air-treatment is adopted in the various laboratories generally have two kinds: a kind of is directly to deliver to new wind indoor through blower fan; Common constant temperature and humidity machine is installed in the room; Because the difference of the new wind-warm syndrome degree in each season, the room temperature fluctuation is bigger, causes room temperature and humidity can not satisfy technology and requirement of experiment; Second kind is to adopt the whole fresh wind air-condition unit to add dehumidifier, humidifier and heater to form a system; Air conditioner with fresh air ventilator is responsible for room temperature is controlled, and regulates room humidity through the unlatching of dehumidifier and humidifier, mostly is that adjustment is carried out in electrical heating because of what adopt; Neither energy-conservation; Control accuracy can not satisfy room humiture requirement, and because of not being a control system, the unit operation reliability can not get ensureing.
Summary of the invention
The purpose of this invention is to provide a kind of brand-new wind constant temperature and humidity air-conditioning system, overcome because of the phenomenon of the normal operation of the variable effect unit of brand-new wind operating mode and add the thermal recovery electricity winter or steam, hot water etc. cause the bigger phenomenon of power consumption of unit as thermal source with heat pump functional.
The present invention realizes with following technical scheme: a kind of brand-new wind pump type heat constant temperature and humidity air-conditioning system comprises the above work unit of at least two groups that are installed in the off-premises station, is installed on air processor and control system in the indoor set, it is characterized in that:
Said every group of working machine group comprises compressor, oil eliminator, four-way change-over valve, outdoor heat exchanger, first expansion valve, device for drying and filtering, liquid supply electromagnetic valve, second expansion valve, liquid storage hydrops province ability heat exchanger respectively; Said liquid storage hydrops is economized and can be provided with reservoir, gas-liquid separator in the heat exchanger; The exhaust outlet of said compressor is connected in series reservoir, device for drying and filtering, liquid supply electromagnetic valve, second expansion valve in oil eliminator, four-way change-over valve, outdoor heat exchanger, first expansion valve, the liquid storage hydrops province ability heat exchanger successively; Outdoor heat exchanger one side is provided with axial flow blower;
Said air processor comprises indoor heat exchanger, humidifier, heater, the centrifugal blower that is arranged in order; Every group of equal common air treating apparatus of work unit;
Indoor heat exchanger one end of said air processor connects second expansion valve of every group of work unit; The other end of indoor heat exchanger connects the gas-liquid separator in the liquid storage hydrops province ability heat exchanger through the four-way change-over valve of every group of work unit, and gas-liquid separator connects the return-air mouth of compressor;
Said control system comprises PLC programmable controller, telecommunication module and warm and humid sensor.
The air inlet of said indoor heat exchanger is provided with the outdoor environment temperature sensor, and the air outlet of said centrifugal blower is provided with Temperature Humidity Sensor.
Said humidifier is electric pole type or electrothermal.
Said heater is that electrical heating, steam or hot water are as thermal source.
Said compressor is fully-closed vortex formula, semi-hermetic piston-type or semi-closed screw type.
Compared with prior art, advantage of the present invention is:
1, adopts the above work of at least two groups unit, realized controlling needs compressor and starting platform number flexibly, can effectively control unit air-out parameter, prevent to select few influence of too much shutting down temperature and humidity because of number of compressors according to the variation of brand-new wind operating mode;
2, because of having adopted multiple compressors, had many groups heat pump, so winter heating uses rationally heat pump to heat according to working condition requirement, practiced thrift the energy greatly, overcome in the conventional art and generally to adopt electrical heating to heat the high defective of power consumption winter;
3, be that system provides accurate various required data-signals through various sensors; Adopt high accuracy PLC programmable control system; Realize the accurate control of indoor air quality; Can realize remote data acquisition, monitoring, adjusting to this air-conditioning system through the telecommunication module, realize intelligent Long-distance Control.
Compact conformation of the present invention, convenient for installation and maintenance, energy-conserving and environment-protective, security of system is reliable.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: PLC programmable controller 1, telecommunication module 2, warm and humid sensor 3, centrifugal blower 4, heater 5; Humidifier 6, indoor heat exchanger 7, compressor 8, oil eliminator 9, four-way change-over valve 10; Outdoor heat exchanger 11, axial flow blower 12, the first expansion valves 13, liquid storage hydrops are economized ability heat exchanger 14, reservoir 15; Gas-liquid separator 16, device for drying and filtering 17, liquid supply electromagnetic valve 18, the second expansion valves 19, outdoor environment temperature sensor 20.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
Shown in Figure 1, a kind of brand-new wind pump type heat constant temperature and humidity air-conditioning system comprises the above work unit of at least two groups that are installed in the off-premises station, is installed on air processor and control system in the indoor set.The control system comprises PLC programmable controller 1, telecommunication module 2, warm and humid sensor 3 and outdoor environment temperature sensor 20; Every group of work unit includes that compressor 8, oil eliminator 9, four-way change-over valve 10, outdoor heat exchanger 11, first expansion valve 13, device for drying and filtering 17, liquid supply electromagnetic valve 18, second expansion valve 19 and liquid storage hydrops economize can heat exchanger 14; The liquid storage hydrops is economized and can be provided with reservoir 15 and gas-liquid separator 16 in the heat exchanger 14; The exhaust outlet of compressor 8 is connected in series oil eliminator 9, four-way change-over valve 10, outdoor heat exchanger 11, first expansion valve 13, liquid storage hydrops successively and economizes reservoir 15, device for drying and filtering 17, liquid supply electromagnetic valve 18 and second expansion valve 19 in can heat exchanger, and outdoor heat exchanger 11 1 sides are provided with axial flow blower 12; Air processor comprises indoor heat exchanger 7, humidifier 6, heater 5 and the centrifugal blower 4 that is arranged in order; The brand-new wind inlet of air processor is provided with outdoor environment temperature sensor 20; Centrifugal blower 4 air outlets are provided with warm and humid sensor 3, every group of equal common air treating apparatus of work unit; Indoor heat exchanger 7 one ends of air processor connect second expansion valve 19 of every group of work unit; The other end of indoor heat exchanger 7 connects the gas-liquid separator 16 in the liquid storage hydrops province ability heat exchanger through the four-way change-over valve 10 of every group of work unit, and gas-liquid separator connects the return-air mouth of compressor 8.
Four groups of work units have been adopted in the foregoing description, the shared indoor heat exchanger of per two groups of work units; Humidifier 6 is electric pole type or electrothermal among the present invention, heater 5 for electrical heating, steam or hot water as thermal source, compressor 7 is fully-closed vortex formula, semi-hermetic piston-type or semi-closed screw type.The air-conditioning unit can be made split type; Also can make monoblock type, be installed in outdoor.The brand-new wind of air processor gets into through the shutter of unit fresh wind port, delivers to air-conditioned room through indoor heat exchanger, humidifier, heater, the centrifugal blower air-out of unit.
The present invention has summer in winter two kinds of operating modes, specifies as follows:
Summer condition: air-conditioning mainly is to freeze and remove wet trade during summer.
When freezing summer, unit sets up " Dual OMU Servers Mode ", " three machine patterns ", " four machine patterns " separately according to outdoor environment temperature.When environment temperature is spent more than or equal to 35, select " four machine patterns "; When environment temperature is spent less than 35 more than or equal to 25 degree, select " three machine patterns "; When environment temperature is spent less than 25 more than or equal to 15 degree, select " Dual OMU Servers Mode "; When environment temperature is spent less than 15, the compressor full cut-off.
The workflow of every group of work unit: refrigerated dehumidification is selected by system; Compressor is compressed into cold-producing medium the gas of HTHP;, oil eliminator passes through four-way change-over valve inlet chamber external heat exchanger after separating the oil in the exhaust; Outdoor heat exchanger becomes the liquid of HTHP to get into the reservoir that the liquid storage hydrops is economized the ability heat exchanger condensation of gas of HTHP; Handle after liquid supply electromagnetic valve, second expansion valve become the liquid of low-temp low-pressure with the liquid throttling of HTHP through device for drying and filtering, get into indoor heat exchanger and gasify and become the gas of low-temp low-pressure, again through four-way change-over valve get into the liquid storage hydrops economize can heat exchanger gas-liquid separator; Small amount of liquid in the return-air is separated the back get into compressor, so periodic duty.The air of centrifugal blower after with indoor heat exchanger cooling and dehumidifying sent into the laboratory; Axial flow blower with the heat of outdoor heat exchanger to outdoor discharge.
In order to guarantee accuracy control over temperature in the laboratory, carry out the compensation of temperature trace through heater, be specially: temperature is opened three grades of electrical heating smaller or equal to 14 degree; Temperature is opened the secondary electrical heating smaller or equal to 19 degree; Temperature is opened the one-level electrical heating smaller or equal to 21 degree; Humidity is the comparison through actual air-out humidity and setting value, and humidity is on the low side automatic detection humidification by humidifier proportional quantities control humidification amount, reaches the function of constant temperature and humidity.
Winter condition: winter is main is to heat up and add wet trade.
In the time of in the winter time, outdoor temperature is lower, and unit is opened heat pump functional.When environment temperature is spent less than-2.5, select " four machine patterns "; When environment temperature is spent less than 3.5 more than or equal to-2.5 degree, select " three machine patterns "; When environment temperature is spent less than 7 more than or equal to 3.5 degree, select " Dual OMU Servers Mode "; When environment temperature is spent less than 13 more than or equal to 7 degree, select " single cpu mode "; When environment temperature is spent the compressor full cut-ofves more than or equal to 15; When environment temperature is spent less than 15 more than or equal to 13 degree, select the electrical heating pattern.
Claims (5)
1. brand-new wind pump type heat constant temperature and humidity air-conditioning system comprises the above work unit of at least two groups that are installed in the off-premises station, is installed on air processor and control system in the indoor set, it is characterized in that:
Said every group of working machine group comprises compressor, oil eliminator, four-way change-over valve, outdoor heat exchanger, first expansion valve, device for drying and filtering, liquid supply electromagnetic valve, second expansion valve, liquid storage hydrops province ability heat exchanger respectively; Said liquid storage hydrops is economized and can be provided with reservoir, gas-liquid separator in the heat exchanger; The exhaust outlet of said compressor is connected in series reservoir, device for drying and filtering, liquid supply electromagnetic valve, second expansion valve in oil eliminator, four-way change-over valve, outdoor heat exchanger, first expansion valve, the liquid storage hydrops province ability heat exchanger successively; Outdoor heat exchanger one side is provided with axial flow blower;
Said air processor comprises indoor heat exchanger, humidifier, heater, the centrifugal blower that is arranged in order; Every group of equal common air treating apparatus of work unit;
Indoor heat exchanger one end of said air processor connects second expansion valve of every group of work unit; The other end of indoor heat exchanger connects the gas-liquid separator in the liquid storage hydrops province ability heat exchanger through the four-way change-over valve of every group of work unit, and gas-liquid separator connects the return-air mouth of compressor;
Said control system comprises PLC programmable controller, telecommunication module and warm and humid sensor.
2. brand-new wind pump type heat constant temperature and humidity air-conditioning system according to claim 1, it is characterized in that: the air inlet of said indoor heat exchanger is provided with the outdoor environment temperature sensor, and the air outlet of said centrifugal blower is provided with Temperature Humidity Sensor.
3. brand-new wind pump type heat constant temperature and humidity air-conditioning system according to claim 1, it is characterized in that: said humidifier is electric pole type or electrothermal.
4. brand-new wind pump type heat constant temperature and humidity air-conditioning system according to claim 1 is characterized in that: said heater is that electrical heating, steam or hot water are as thermal source.
5. brand-new wind pump type heat constant temperature and humidity air-conditioning system according to claim 1, it is characterized in that: said compressor is fully-closed vortex formula, semi-hermetic piston-type or semi-closed screw type.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110388568 CN102384555B (en) | 2011-11-30 | 2011-11-30 | Full fresh air heat pump type constant temperature and constant humidity air conditioning system |
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| CN 201110388568 CN102384555B (en) | 2011-11-30 | 2011-11-30 | Full fresh air heat pump type constant temperature and constant humidity air conditioning system |
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| CN102384555B CN102384555B (en) | 2013-04-10 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375858A (en) * | 2012-04-19 | 2013-10-30 | 大金工业株式会社 | Moisture adjusting device |
| CN108253556A (en) * | 2018-02-09 | 2018-07-06 | 广东申菱环境系统股份有限公司 | A kind of the all-fresh air central air-conditioning and its preheating control method of electrical heating preheating |
| CN108679780A (en) * | 2018-04-11 | 2018-10-19 | 浙江国祥股份有限公司 | A kind of high-precision constant-temperature constant-moisture air-conditioning system and control method |
| CN108758795A (en) * | 2018-04-11 | 2018-11-06 | 浙江国祥股份有限公司 | A kind of superhigh precision constant temperature and humidity air-conditioning system and control method |
| CN110178735A (en) * | 2019-04-18 | 2019-08-30 | 山东陆海新能源技术有限公司 | A kind of multifunctional disinfecting constant temperature and humidity ecologic breeding unit |
| CN115143660A (en) * | 2022-06-30 | 2022-10-04 | 雅凯热能技术(江苏)有限公司 | Storage air conditioning system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375858A (en) * | 2012-04-19 | 2013-10-30 | 大金工业株式会社 | Moisture adjusting device |
| CN108253556A (en) * | 2018-02-09 | 2018-07-06 | 广东申菱环境系统股份有限公司 | A kind of the all-fresh air central air-conditioning and its preheating control method of electrical heating preheating |
| CN108679780A (en) * | 2018-04-11 | 2018-10-19 | 浙江国祥股份有限公司 | A kind of high-precision constant-temperature constant-moisture air-conditioning system and control method |
| CN108758795A (en) * | 2018-04-11 | 2018-11-06 | 浙江国祥股份有限公司 | A kind of superhigh precision constant temperature and humidity air-conditioning system and control method |
| CN110178735A (en) * | 2019-04-18 | 2019-08-30 | 山东陆海新能源技术有限公司 | A kind of multifunctional disinfecting constant temperature and humidity ecologic breeding unit |
| CN115143660A (en) * | 2022-06-30 | 2022-10-04 | 雅凯热能技术(江苏)有限公司 | Storage air conditioning system |
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| CN102384555B (en) | 2013-04-10 |
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