CN104864536A - Efficient energy-saving multi-stage heat and humidity treatment air conditioning device and treatment method thereof - Google Patents
Efficient energy-saving multi-stage heat and humidity treatment air conditioning device and treatment method thereof Download PDFInfo
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- CN104864536A CN104864536A CN201510348419.0A CN201510348419A CN104864536A CN 104864536 A CN104864536 A CN 104864536A CN 201510348419 A CN201510348419 A CN 201510348419A CN 104864536 A CN104864536 A CN 104864536A
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- 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
- F24F13/22—Means for preventing condensation or evacuating condensate
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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Abstract
The invention discloses an efficient energy-saving multi-stage heat and humidity treatment air conditioning device and a treatment method thereof. The device comprises a refrigeration circulation component, an air circulation component, and an air heat and humidity treatment component. The refrigeration circulation component comprises a high-temperature stage refrigerator unit, a low-temperature stage refrigerator unit, a high-temperature stage refrigerant delivery pump, a high-temperature stage refrigerant circulation pipeline, a low-temperature stage refrigerant delivery pump, a low-temperature stage refrigerant circulation pipeline, a high-temperature stage primary cooling and dehumidifying refrigerant supply automatic regulating valve, a low-temperature stage secondary cooling and dehumidifying refrigerant supply automatic regulating valve, and a high-temperature stage cooling refrigerant supply automatic regulating valve. Aiming at the defects that the conventional air heat and humidity treatment is substantially high in energy consumption, severe in resource waste, and pollutive to environment, or the like, a reasonable air heat and humidity treatment device is provided, accordingly increasing the utilization ratio of energy resources, reducing the resource waste, reducing the emission, and protecting the environment.
Description
Technical field
The present invention relates to central air-conditioning air heat and wet treatment technology, particularly relate to a kind of highly effective energy-conserving multi-stage heat and wet treatment aircondition and processing method thereof.
Background technology
China's building central air conditioner system heat and wet treatment, again through heat and wet treatment after mostly adopting new wind to mix with return air, namely after the new wind accounting for 20% mixes with the return air accounting for 80%, again through showing below the cold cool-down dehumidification dew-point temperature corresponding to room desired moisture level (usual <10 DEG C), air heat is sent into indoor to wind pushing temperature (usually about about 20 DEG C) by mode finally by reheating afterwards.
Because new wind adds, for maintaining room pressure balance, unnecessary room air need be drained into outdoor, be mostly outside direct discharge chamber at present.
Traditional approach has the following disadvantages:
1. in traditional air-conditioning system, new wind load generally will account for 20% ~ 40% of whole air conditioner load, and what have is even larger.When carrying out the design of air-conditioning system, the minimum fresh air requirmente of taking is according to human physiology condition, and compensation local exhaust ensures that the certain malleation value of air-conditioned room is determined.Tradition resh air requirement be ensure air-conditioning system in indoor maximum new wind load, when namely occupancy is the most concentrated, still can meet according to the determined resh air requirement index of human physiology condition, this parameter is selected larger usually.And when indoor occupant is relatively less, still input new wind according to maximum resh air requirement, then can cause wasting of the energy.
2., because traditional primary retirn air mode need concentrate heat and wet treatment again by after new wind and return air mixing, need a large amount of refrigerating capacitys and reheating to add heat, energy resource consumption is serious.
3. because traditional approach need by (usual <10 DEG C) below all air cooling-downs to dew-point temperature, because of the relation of heat transfer temperature difference, required chilled water supply water temperature need lower (about <6 DEG C), rule of thumb, refrigerator cooling condition is constant, chilled water supply water temperature often reduces by 1 DEG C, the consumed power increase about 3-5% of refrigerator.Therefore lower chilled water supply water temperature, cause refrigerator efficiency greatly to reduce.
4., due to a large amount of refrigerating capacitys and add heat, the water circulating pump compared with large discharge need be equipped with, cause hot and cold water circulatory system power consumption to increase thereupon.
5., due to a large amount of refrigerating capacitys and add heat, jumbo refrigeration plant, firing equipment, water circulating pump and circulating water pipeline need be configured, and corresponding controller switching equipment.Up-front investment is huge.
6. the indoor exhaust wind of traditional approach and the condensed water of dehumidifying generation do not adopt energy regenerating, cause energy to waste.
Summary of the invention
Object of the present invention: a kind of highly effective energy-conserving multi-stage heat and wet treatment aircondition and processing method thereof are provided; higher for conventional air heat and wet treatment energy consumption; serious waste of resources; the shortcomings such as contaminated environment; a kind of reasonably Air handling unit is provided, thus improves efficiency of energy utilization, reduce the wasting of resources; emissions reduction, protection of the environment.
To achieve these goals, technical scheme of the present invention is:
A kind of highly effective energy-conserving multi-stage heat and wet treatment aircondition, comprises kind of refrigeration cycle assembly, air recirculation assembly and air heat and wet treatment assembly, described kind of refrigeration cycle assembly comprises high-temperature level refrigeration unit, low-temperature level refrigeration unit, high-temperature level refrigerant delivery pump, high-temperature level medium circulation pipeline, low-temperature level refrigerant delivery pump, low-temperature level medium circulation pipeline, high-temperature level cool-down dehumidification refrigerant supply automatic regulating valve, low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve and high-temperature level cooling refrigerant supply automatic regulating valve, the two ends of described high-temperature level refrigeration unit lower the temperature respectively by described high-temperature level medium circulation pipeline and high-temperature level cool-down dehumidification surface cooler and high-temperature level, and surface cooler is corresponding to be connected, described high-temperature level refrigerant delivery pump is arranged on one end of described high-temperature level refrigeration unit and the junction of described high-temperature level medium circulation pipeline, described high-temperature level cooling refrigerant supply automatic regulating valve is arranged on the high-temperature level medium circulation pipeline of the other end of described high-temperature level refrigeration unit and described high-temperature level and lowers the temperature the junction of surface cooler, described high-temperature level cool-down dehumidification refrigerant supply automatic regulating valve is arranged on the high-temperature level medium circulation pipeline of the other end of described high-temperature level refrigeration unit and the junction of a described high-temperature level cool-down dehumidification surface cooler, the two ends of described low-temperature level refrigeration unit are connected respectively by described low-temperature level medium circulation pipeline and the low-temperature level reducing temperature twice surface cooler that dehumidifies, described low-temperature level refrigerant delivery pump is arranged on one end of described low-temperature level refrigeration unit and the junction of described low-temperature level medium circulation pipeline, and described low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve is arranged on the low-temperature level medium circulation pipeline of the other end of described low-temperature level refrigeration unit and described low-temperature level reducing temperature twice and dehumidifies the junction of surface cooler, described air recirculation assembly comprises fresh wind port, frequency conversion pressure fan, frequency conversion return fan, secondary return air automatic regulating valve, primary retirn air automatic regulating valve, air draft automatic regulating valve, exhaust outlet, fresh wind tube, primary retirn air pipe, secondary returning airduct, air supply section, return air house steward, exhaust duct, mixed once section and secondary mixing section, described primary retirn air automatic regulating valve is arranged in described primary retirn air pipe, and described secondary return air automatic regulating valve is arranged in described secondary returning airduct, described fresh wind port, fresh wind tube, mixed once section, secondary mixing section and air supply section are communicated with successively, and air outlet is arranged in room by described air supply section, and described frequency conversion blower setting is in described air supply section, described frequency conversion return fan is arranged in described return air house steward, described exhaust outlet is communicated with described exhaust duct, and described exhaust duct is arranged on outside room by described return air house steward, the two ends of described primary retirn air pipe are connected with described mixed once section and return air house steward respectively, and the two ends of described secondary returning airduct are connected with described secondary mixing section and return air house steward respectively, described air draft automatic regulating valve is arranged in described exhaust duct, described air heat and wet treatment assembly comprises air-to-air energy recovery equipment, condensed water Exposure degree surface cooler and condensing water conduit, high-temperature level cool-down dehumidification surface cooler, low-temperature level reducing temperature twice dehumidifying surface cooler and high-temperature level cooling surface cooler, described air-to-air energy recovery equipment is connected on described fresh wind port and exhaust outlet, and described condensed water Exposure degree surface cooler is arranged in described fresh wind tube, the discharge condensed water of the cool-down dehumidification surface cooler of the high-temperature level in described mixed once section and low-temperature level reducing temperature twice dehumidifying surface cooler is introduced condensed water Exposure degree surface cooler by described condensing water conduit, described high-temperature level cool-down dehumidification surface cooler and low-temperature level reducing temperature twice dehumidifying surface cooler are separately positioned in described mixed once section, and described high-temperature level cooling surface cooler is arranged in described secondary mixing section.
Above-mentioned highly effective energy-conserving multi-stage heat and wet treatment aircondition, wherein, also comprise direct digital controller and host computer, described direct digital controller is connected with described host computer, described direct digital controller be respectively equipped with analog signals input port and export control signal port, described output control signal port respectively with described high-temperature level refrigeration unit, low-temperature level refrigeration unit, high-temperature level cool-down dehumidification refrigerant supply automatic regulating valve, low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve, high-temperature level cooling refrigerant supply automatic regulating valve, frequency conversion pressure fan, frequency conversion return fan, secondary return air automatic regulating valve, primary retirn air automatic regulating valve and air draft automatic regulating valve connect.
Above-mentioned highly effective energy-conserving multi-stage heat and wet treatment aircondition, wherein, be provided with wind pushing temperature sensor, blasting humidity sensor and air-supply air flow sensor in described air supply section, described wind pushing temperature sensor, blasting humidity sensor and air-supply air flow sensor are connected with described analog signals input port respectively.
Above-mentioned highly effective energy-conserving multi-stage heat and wet treatment aircondition, wherein, be provided with room temperature sensor, room humidity sensor, room gas concentration lwevel sensor and room differential pressure pickup in described room, described room temperature sensor, room humidity sensor, room gas concentration lwevel sensor and room differential pressure pickup are connected with described analog signals input port respectively.
Utilize a processing method for described highly effective energy-conserving multi-stage heat and wet treatment aircondition, the method at least comprises the steps:
Step 1: the hot and humid new wind outside described room is introduced by described fresh wind port, through the full heat of described air-to-air energy recovery equipment recovery section air draft or sensible heat energy, preliminary cooling and dehumidification.
Step 2: the discharge condensed water of the cool-down dehumidification surface cooler of the high-temperature level in described mixed once section and low-temperature level reducing temperature twice dehumidifying surface cooler is introduced condensed water Exposure degree surface cooler by condensing water conduit, reclaim condensed water sensible heat by condensed water Exposure degree surface cooler, reduce new air temperature further.
Step 3: the part primary retirn air after the adjustment of described primary retirn air automatic regulating valve is caused described mixed once Duan Yuxin wind mixing by described primary retirn air pipe.
Step 4: regulate by described high-temperature level cool-down dehumidification refrigerant supply automatic regulating valve the cold medium flux entering a described high-temperature level cool-down dehumidification surface cooler, utilize high-temperature level refrigerant to carry out a cool-down dehumidification to mixing air.
Step 5: regulated the low-temperature level refrigeration unit described in the cold medium flux and direct digital controller control entering low-temperature level reducing temperature twice dehumidifying surface cooler to regulate refrigerant supply temperature by described low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve.
Step 6: by described secondary returning airduct, the part room secondary return air after the adjustment of described secondary return air automatic regulating valve is caused described secondary mixing section and again mix with mixed once wind.
Step 7: regulated the high-temperature level refrigeration unit described in the cold medium flux and direct digital controller control entering described high-temperature level cooling surface cooler to regulate refrigerant supply temperature by described high-temperature level refrigerant supply automatic regulating valve.
Step 8: wet more than satisfactory air feeding air-conditioned room elimination room residual heat by described frequency conversion pressure fan.
Step 9: frequency conversion return fan circulates again by being supplied to air-supply loop outside air-conditioned room additional air part discharge chamber with part.
Step 10: air draft regulates exhaust air rate by described air draft automatic regulating valve, thus indirect regulation enters the resh air requirement in described room.
Step 11: air draft to regulate after exhaust air rate after described air-to-air energy recovery equipment recovers energy by described air draft automatic regulating valve, drains into outdoor by described exhaust outlet.
The present invention arranges air-to-air energy recovery equipment at fresh wind port and exhaust outlet place, reclaims air draft energy, the object reaching pre-cooling of fresh air and dry in advance, reduces the load once showing cold cool-down dehumidification, economize energy; Condensed water Exposure degree surface cooler is set in fresh air pipeline, reclaims condensed water energy, reach the object of pre-cooling of fresh air, reduce the load of the cold cooling of table further, economize energy; At indoor location gas concentration lwevel sensor, on-line monitoring IAQ, air-conditioning system changes according to IAQ, the new wind input quantity of synchronous change is run, ensure that whole air-conditioning system is run by the minimum fresh air requirmente meeting indoor sanitation all the time, reduce new wind load to greatest extent, reduce the excessive supply of new wind and cause energy waste; Adopt the wet process separately of the multistage heat of cooling of secondary return air, only need to carry out cool-down dehumidification process to partial air, cancel thermal process again, save mass energy; Adopt secondary refrigerant also at utmost to increase the proportion of secondary high temperature refrigerant for strain supply temperature, greatly improve refrigeration system comprehensive energy efficiency; Reduce due to chilling requirement and do not need heating, required quantity of circulating water also reduces thereupon, greatly saves water circulating pump power consumption; Reduce due to chilling requirement and do not need heating, the refrigeration system that need configure, circulatory system capacity greatly reduce, and save a large amount of up-front investments.
Accompanying drawing explanation
Fig. 1 is the pipeline connection diagram of highly effective energy-conserving multi-stage heat and wet treatment aircondition of the present invention.
Fig. 2 is the Automatic Control Theory figure of highly effective energy-conserving multi-stage heat and wet treatment aircondition of the present invention.
Fig. 3 is the process chart of highly effective energy-conserving multi-stage heat and wet treatment aircondition of the present invention.
Detailed description of the invention
Embodiments of the invention are further illustrated below in conjunction with accompanying drawing.
Refer to shown in accompanying drawing 1 and accompanying drawing 2, a kind of highly effective energy-conserving multi-stage heat and wet treatment aircondition, comprise kind of refrigeration cycle assembly, air recirculation assembly and air heat and wet treatment assembly.
Described kind of refrigeration cycle assembly comprises high-temperature level refrigeration unit 5, low-temperature level refrigeration unit 6, high-temperature level refrigerant delivery pump 7, high-temperature level medium circulation pipeline 8, low-temperature level refrigerant delivery pump 9, low-temperature level medium circulation pipeline 10, high-temperature level cool-down dehumidification refrigerant supply automatic regulating valve 12, low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve 14 and high-temperature level cooling refrigerant supply automatic regulating valve 16, the two ends of described high-temperature level refrigeration unit 5 lower the temperature respectively by described high-temperature level medium circulation pipeline 8 and high-temperature level cool-down dehumidification surface cooler 11 and high-temperature level, and surface cooler 15 is corresponding to be connected, described high-temperature level refrigerant delivery pump 7 is arranged on one end of described high-temperature level refrigeration unit 5 and the junction of described high-temperature level medium circulation pipeline 8, the high-temperature level medium circulation pipeline 8 that described high-temperature level cooling refrigerant supply automatic regulating valve 16 is arranged on the other end of described high-temperature level refrigeration unit 5 and described high-temperature level are lowered the temperature the junction of surface cooler 15, described high-temperature level cool-down dehumidification refrigerant supply automatic regulating valve 12 is arranged on the high-temperature level medium circulation pipeline 8 of the other end of described high-temperature level refrigeration unit 5 and the junction of a described high-temperature level cool-down dehumidification surface cooler 11, the two ends of described low-temperature level refrigeration unit 6 are connected respectively by described low-temperature level medium circulation pipeline 10 and the low-temperature level reducing temperature twice surface cooler 13 that dehumidifies, described low-temperature level refrigerant delivery pump 9 is arranged on one end of described low-temperature level refrigeration unit 6 and the junction of described low-temperature level medium circulation pipeline 10, and the low-temperature level medium circulation pipeline 10 that described low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve 14 is arranged on the other end of described low-temperature level refrigeration unit 6 and described low-temperature level reducing temperature twice dehumidify the junction of surface cooler 13.
Described air recirculation assembly comprises fresh wind port 1, frequency conversion pressure fan 17, frequency conversion return fan 26, secondary return air automatic regulating valve 27, primary retirn air automatic regulating valve 28, air draft automatic regulating valve 29, exhaust outlet 30, fresh wind tube 31, primary retirn air pipe 32, secondary returning airduct 33, air supply section 34, return air house steward 35, exhaust duct 36, mixed once section 37 and secondary mixing section 38; Described primary retirn air automatic regulating valve 28 is arranged in described primary retirn air pipe 32, and described secondary return air automatic regulating valve 27 is arranged in described secondary returning airduct 33; Described fresh wind port 1, fresh wind tube 31, mixed once section 37, secondary mixing section 38 and air supply section 34 are communicated with successively, and air outlet is arranged in room 21 by described air supply section 34, and described frequency conversion pressure fan 17 is arranged in described air supply section 34; Described frequency conversion return fan 26 is arranged in described return air house steward 35; Described exhaust outlet 30 is communicated with described exhaust duct 36, and described exhaust duct 36 is arranged on outside room by described return air house steward 35; The two ends of described primary retirn air pipe 32 are connected with described mixed once section 37 and return air house steward 35 respectively, and the two ends of described secondary returning airduct 33 are connected with described secondary mixing section 38 and return air house steward 35 respectively; Described air draft automatic regulating valve 29 is arranged in described exhaust duct 36.
Described air heat and wet treatment assembly comprises air-to-air energy recovery equipment 2, condensed water Exposure degree surface cooler 3 and condensing water conduit 4, high-temperature level cool-down dehumidification surface cooler 11, low-temperature level reducing temperature twice dehumidifying surface cooler 13 and high-temperature level cooling surface cooler 15; Described air-to-air energy recovery equipment 2 is connected on described fresh wind port 1 and exhaust outlet 30, and described condensed water Exposure degree surface cooler 3 is arranged in described fresh wind tube 31; The discharge condensed water of the cool-down dehumidification surface cooler 11 of the high-temperature level in described mixed once section 37 and low-temperature level reducing temperature twice dehumidifying surface cooler 13 is introduced condensed water Exposure degree surface cooler 3 by described condensing water conduit 4, described high-temperature level cool-down dehumidification surface cooler 11 and low-temperature level reducing temperature twice dehumidifying surface cooler 13 are separately positioned in described mixed once section 37, and described high-temperature level cooling surface cooler 15 is arranged in described secondary mixing section 38.
Also comprise direct digital controller 39 and host computer 40, described direct digital controller 39 is connected with described host computer 40, described direct digital controller 39 be respectively equipped with analog signals input port 391 and export control signal port 392, described output control signal port 392 respectively with described high-temperature level refrigeration unit 5, low-temperature level refrigeration unit 6, high-temperature level cool-down dehumidification refrigerant supply automatic regulating valve 12, low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve 14, high-temperature level cooling refrigerant supply automatic regulating valve 16, frequency conversion pressure fan 17, frequency conversion return fan 26, secondary return air automatic regulating valve 27, primary retirn air automatic regulating valve 28 and air draft automatic regulating valve 29 connect.
Be provided with wind pushing temperature sensor 18, blasting humidity sensor 19 and air-supply air flow sensor 20 in described air supply section 34, described wind pushing temperature sensor 18, blasting humidity sensor 19 and air-supply air flow sensor 20 are connected with described analog signals input port 391 respectively.
Be provided with room temperature sensor 22, room humidity sensor 23, room gas concentration lwevel sensor 24 and room differential pressure pickup 25 in described room 21, described room temperature sensor 22, room humidity sensor 23, room gas concentration lwevel sensor 24 and room differential pressure pickup 25 are connected with described analog signals input port 391 respectively.
New wind is through the full heat of air-to-air energy recovery equipment 2 recovery section air draft or sensible heat energy, and preliminary cooling and dehumidification, reduces rear class processing load; Secondly, the discharge condensed water of the cool-down dehumidification surface cooler 11 of the high-temperature level in described mixed once section 37 and low-temperature level reducing temperature twice dehumidifying surface cooler 13 is introduced condensed water Exposure degree surface cooler 3 by condensing water conduit 4, condensed water sensible heat is reclaimed by condensed water Exposure degree surface cooler 3, the new air temperature of further reduction, reduces rear class processing load.Then, regulate by high-temperature level cool-down dehumidification refrigerant supply automatic regulating valve 12 cold medium flux entering a high-temperature level cool-down dehumidification surface cooler 11, utilize high-temperature level refrigerant to carry out a cool-down dehumidification to mixed once air, reduce reducing temperature twice except humidity load.Regulated by low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve 14 again and enter the low-temperature level reducing temperature twice dehumidifying cold medium flux of surface cooler 13 and direct digital controller 39 and output signal and control low-temperature level refrigeration unit by exporting control signal port 392 and regulate refrigerant supply temperature, low-temperature level refrigerant is utilized to carry out reducing temperature twice dehumidifying to mixed once air, until meet air-conditioned room 21 humidity requirement.Regulate finally by high-temperature level refrigerant supply automatic regulating valve 16 and enter the high-temperature level cooling cold medium flux of surface cooler 15 and direct digital controller and export control signal port 392 and output signal and control high-temperature level refrigeration unit and regulate refrigerant supply temperature, utilize high-temperature level refrigerant to be cooled to secondary mixing air and meet room temperature requirement.
Power is provided by frequency conversion pressure fan 17, new for outdoor wind is introduced from fresh wind port 1 by fresh wind tube 31, again the room return air after primary retirn air automatic regulating valve 28, secondary return air automatic regulating valve 27 adjustment ratio is introduced by primary retirn air pipe 32, secondary returning airduct 33, introduce after new wind mixes with fresh wind port 1 and together send into air-conditioned room 21 by ajutage 34; Power is provided by frequency conversion return fan 26, unnecessary portion of air after maintenance setting pressure reduction in room 21, by delivering to air-supply loop through primary retirn air pipe 32, secondary returning airduct 33 after primary retirn air automatic regulating valve 28, secondary return air automatic regulating valve 27 adjustment ratio, is participated in recirculation.Unnecessary another part air will to be maintained after setting pressure reduction after air draft automatic regulating valve 29 regulates by outside exhaust outlet 30 discharge chamber in room 21.
High-temperature level refrigeration unit 5 is set and produces cold, high-temperature level refrigerant delivery pump 7 provides power, by high-temperature level medium circulation pipeline 8, high temperature refrigerant is supplied to use point, regulate supply flow to enter high-temperature level cool-down dehumidification surface cooler 11, high-temperature level cooling surface cooler 15 by high-temperature level cool-down dehumidification refrigerant supply automatic regulating valve 12, high-temperature level refrigerant supply automatic regulating valve 16, return high-temperature level refrigeration unit 5 after completing heat exchange and recycle.Low-temperature level refrigeration unit 6 is set and produces cold, low-temperature level refrigerant delivery pump 9 provides power, by low-temperature level medium circulation pipeline 9, low temperature refrigerant is supplied to use point, regulates supply flow to enter after low-temperature level reducing temperature twice dehumidifying surface cooler 13 completes heat exchange by low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve 14 and return low-temperature level refrigeration unit 6 and recycle.High-temperature level refrigeration unit 5, low-temperature level refrigeration unit 6 can supply multiple stage air-conditioner set simultaneously.
Direct digital controller 39 and host computer 40 gather relevant parameter according to each sensor on-line uninterruption being arranged on air supply section 34 and room 21, compare with relevant parameter setting value again, prediction judges the change of each load, real-time adjustment phase Blowing stopper, valve, handpiece Water Chilling Units adjust operation state, ensure system stability safe operation.
The air-supply air flow sensor 20 be arranged in air supply section 34 sends by analog signals input port 391 the air-supply air quantity parameter detected to direct digital controller 39, direct digital controller 39 compares according to the parameter gathered and the air-supply air quantity preset, output signal by exporting control signal port 392, control frequency conversion pressure fan 17 adjust operation frequency, ensure that air output is all the time close to setting value.
The room temperature sensor 22 be arranged in room 21 sends by analog signals input port 391 the indoor temperature parameter collected to direct digital controller 39, direct digital controller 39 compares with setting indoor temperature according to temperature parameter in the room 21 gathered, output signal by exporting control signal port 392, adjustment wind pushing temperature, ensures that room temperature is all the time close to setting value.
The wind pushing temperature sensor 18 being arranged on air supply section 34 sends by analog signals input port 391 the wind pushing temperature parameter collected to direct digital controller 39, direct digital controller 39 compares with setting wind pushing temperature according to the wind pushing temperature parameter gathered, output signal by exporting control signal port 392, control high-temperature level refrigeration unit 5 to regulate the refrigerant temperature of supply and control high-temperature level refrigerant supply automatic regulating valve 16, regulate the refrigerant supply flow entering high-temperature level cooling surface cooler 15.Ensure that wind pushing temperature is all the time close to setting value.
The room humidity sensor 23 being arranged on room 21 sends by analog signals input port 391 the room humidity parameter collected to direct digital controller 39, direct digital controller 39 compares with setting wind pushing temperature according to the wind pushing temperature parameter gathered, output signal by exporting control signal port 392, adjustment blasting humidity, ensures that room 21 humidity is all the time close to setting value.
The blasting humidity sensor 19 being arranged on air supply section 34 sends by analog signals input port 391 the blasting humidity parameter collected to direct digital controller 39, direct digital controller 39 compares with setting blasting humidity according to the blasting humidity parameter gathered, output signal by exporting control signal port 392, control the refrigerant temperature that low-temperature level refrigeration unit 6 regulates supply, control low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve door 14 and regulate refrigerant supply flow, and the primary retirn air automatic regulating valve 28 controlled on primary retirn air pipe 32 and secondary returning airduct 33, secondary return air automatic regulating valve 27 regulates dehumidified air ratio.Ensure that blasting humidity is all the time close to setting value.
The room differential pressure pickup 25 being arranged on air-conditioned room 21 sends the air pressure difference parameter outside the room 21 collected relatively room 21 to direct digital controller 39 by analog signals input port 391, direct digital controller 39 compares with setting room pressure reduction according to the room pressure reduction parameter gathered, output signal by exporting control signal port 392, control frequency conversion return fan 26 and regulate running frequency, in room 21, relative room 21 external differential is close to setting value to regulate return air amount to ensure.
The room gas concentration lwevel sensor 24 being arranged on air-conditioned room 21 sends by analog signals input port 391 the room gas concentration lwevel parameter collected to direct digital controller 39, direct digital controller 39 compares with setting room gas concentration lwevel according to the room gas concentration lwevel parameter gathered, output signal by exporting control signal port 392, control air draft automatic regulating valve 29 aperture, regulate exhaust air rate, thus indirect regulation enters the resh air requirement in room 21, ensure that in room 21, resh air requirement meets indoor sanitation requirement all the time.
Refer to shown in accompanying drawing 3, a kind of processing method utilizing described highly effective energy-conserving multi-stage heat and wet treatment aircondition, the method at least comprises the steps:
Step 1: the hot and humid new wind outside described room 21 is introduced by described fresh wind port 1, through the full heat of described air-to-air energy recovery equipment 2 recovery section air draft or sensible heat energy, preliminary cooling and dehumidification, reduces rear class processing load.
Step 2: the discharge condensed water of the cool-down dehumidification surface cooler 11 of the high-temperature level in described mixed once section 37 and low-temperature level reducing temperature twice dehumidifying surface cooler 13 is introduced condensed water Exposure degree surface cooler 3 by condensing water conduit 4, condensed water sensible heat is reclaimed by condensed water Exposure degree surface cooler 3, the new air temperature of further reduction, reduces rear class processing load.
Step 3: by described primary retirn air pipe 32, the part primary retirn air after regulating through described primary retirn air automatic regulating valve 28 is caused described mixed once section 37 and mix with new wind.
Step 4: regulate the cold medium flux entering a described high-temperature level cool-down dehumidification surface cooler 11 by described high-temperature level cool-down dehumidification refrigerant supply automatic regulating valve 12, utilize high-temperature level refrigerant to carry out a cool-down dehumidification to mixing air, reduce reducing temperature twice except humidity load.
Step 5: regulated the low-temperature level refrigeration unit 6 described in the cold medium flux and direct digital controller control entering low-temperature level reducing temperature twice dehumidifying surface cooler 13 to regulate refrigerant supply temperature by described low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve 14, low-temperature level refrigerant is utilized to carry out reducing temperature twice dehumidifying to setting blasting humidity, so that meet the humidity requirement of air-conditioned room 21 to mixing air.
Step 6: by described secondary returning airduct 33, the part room secondary return air after regulating through described secondary return air automatic regulating valve 27 is caused described secondary mixing section 38 and again mix with mixed once wind.
Step 7: regulated the high-temperature level refrigeration unit 5 described in the cold medium flux and direct digital controller control entering described high-temperature level cooling surface cooler 15 to regulate refrigerant supply temperature by described high-temperature level refrigerant supply automatic regulating valve 16, high-temperature level refrigerant is utilized to be cooled to setting wind pushing temperature to mixing air, to meet the temperature requirement in room 21.
Step 8: satisfactory air sent into air-conditioned room 21 by described frequency conversion pressure fan 17 and eliminate more than room residual heat wet.
Step 9: frequency conversion return fan 26 circulates again by being supplied to air-supply loop outside air-conditioned room additional air part discharge chamber with part.
Step 10: air draft regulates exhaust air rate by described air draft automatic regulating valve 29, thus indirect regulation enters the resh air requirement in described room 21.
Step 11: after air draft regulates exhaust air rate by described air draft automatic regulating valve 29 after described air-to-air energy recovery equipment 2 recovers energy, drain into outdoor by described exhaust outlet 30.
In sum, the present invention arranges air-to-air energy recovery equipment at fresh wind port and exhaust outlet place, reclaims air draft energy, the object reaching pre-cooling of fresh air and dry in advance, reduces the load once showing cold cool-down dehumidification, economize energy; Condensed water Exposure degree surface cooler is set in fresh air pipeline, reclaims condensed water energy, the object reaching pre-cooling of fresh air and dry in advance, reduce the load of the cold cool-down dehumidification of table further, economize energy; At indoor location gas concentration lwevel sensor, on-line monitoring IAQ, air-conditioning system changes according to IAQ, the new wind input quantity of synchronous change is run, ensure that whole air-conditioning system is run by the minimum fresh air requirmente meeting indoor sanitation all the time, reduce new wind load to greatest extent, reduce the excessive supply of new wind and cause energy waste; Adopt the wet process separately of the multistage heat of cooling of secondary return air, only need to carry out cool-down dehumidification process to partial air, cancel thermal process again, save mass energy; Adopt secondary refrigerant also at utmost to increase the proportion of secondary high temperature refrigerant for strain supply temperature, greatly improve refrigeration system comprehensive energy efficiency; Reduce due to chilling requirement and do not need heating, required quantity of circulating water also reduces thereupon, greatly saves water circulating pump power consumption; Reduce due to chilling requirement and do not need heating, the refrigeration system that need configure, circulatory system capacity greatly reduce, and save a large amount of up-front investments.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure transformation utilizing description of the present invention to do; or directly or indirectly use the technical field being attached to other Related products, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. a highly effective energy-conserving multi-stage heat and wet treatment aircondition, is characterized in that: comprise kind of refrigeration cycle assembly, air recirculation assembly and air heat and wet treatment assembly, described kind of refrigeration cycle assembly comprises high-temperature level refrigeration unit, low-temperature level refrigeration unit, high-temperature level refrigerant delivery pump, high-temperature level medium circulation pipeline, low-temperature level refrigerant delivery pump, low-temperature level medium circulation pipeline, high-temperature level cool-down dehumidification refrigerant supply automatic regulating valve, low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve and high-temperature level cooling refrigerant supply automatic regulating valve, the two ends of described high-temperature level refrigeration unit lower the temperature respectively by described high-temperature level medium circulation pipeline and high-temperature level cool-down dehumidification surface cooler and high-temperature level, and surface cooler is corresponding to be connected, described high-temperature level refrigerant delivery pump is arranged on one end of described high-temperature level refrigeration unit and the junction of described high-temperature level medium circulation pipeline, described high-temperature level cooling refrigerant supply automatic regulating valve is arranged on the high-temperature level medium circulation pipeline of the other end of described high-temperature level refrigeration unit and described high-temperature level and lowers the temperature the junction of surface cooler, described high-temperature level cool-down dehumidification refrigerant supply automatic regulating valve is arranged on the high-temperature level medium circulation pipeline of the other end of described high-temperature level refrigeration unit and the junction of a described high-temperature level cool-down dehumidification surface cooler, the two ends of described low-temperature level refrigeration unit are connected respectively by described low-temperature level medium circulation pipeline and the low-temperature level reducing temperature twice surface cooler that dehumidifies, described low-temperature level refrigerant delivery pump is arranged on one end of described low-temperature level refrigeration unit and the junction of described low-temperature level medium circulation pipeline, and described low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve is arranged on the low-temperature level medium circulation pipeline of the other end of described low-temperature level refrigeration unit and described low-temperature level reducing temperature twice and dehumidifies the junction of surface cooler, described air recirculation assembly comprises fresh wind port, frequency conversion pressure fan, frequency conversion return fan, secondary return air automatic regulating valve, primary retirn air automatic regulating valve, air draft automatic regulating valve, exhaust outlet, fresh wind tube, primary retirn air pipe, secondary returning airduct, air supply section, return air house steward, exhaust duct, mixed once section and secondary mixing section, described primary retirn air automatic regulating valve is arranged in described primary retirn air pipe, and described secondary return air automatic regulating valve is arranged in described secondary returning airduct, described fresh wind port, fresh wind tube, mixed once section, secondary mixing section and air supply section are communicated with successively, and air outlet is arranged in room by described air supply section, and described frequency conversion blower setting is in described air supply section, described frequency conversion return fan is arranged in described return air house steward, described exhaust outlet is communicated with described exhaust duct, and described exhaust duct is arranged on outside room by described return air house steward, the two ends of described primary retirn air pipe are connected with described mixed once section and return air house steward respectively, and the two ends of described secondary returning airduct are connected with described secondary mixing section and return air house steward respectively, described air draft automatic regulating valve is arranged in described exhaust duct, described air heat and wet treatment assembly comprises air-to-air energy recovery equipment, condensed water Exposure degree surface cooler and condensing water conduit, high-temperature level cool-down dehumidification surface cooler, low-temperature level reducing temperature twice dehumidifying surface cooler and high-temperature level cooling surface cooler, described air-to-air energy recovery equipment is connected on described fresh wind port and exhaust outlet, and described condensed water Exposure degree surface cooler is arranged in described fresh wind tube, the discharge condensed water of the cool-down dehumidification surface cooler of the high-temperature level in described mixed once section and low-temperature level reducing temperature twice dehumidifying surface cooler is introduced condensed water Exposure degree surface cooler by described condensing water conduit, described high-temperature level cool-down dehumidification surface cooler and low-temperature level reducing temperature twice dehumidifying surface cooler are separately positioned in described mixed once section, and described high-temperature level cooling surface cooler is arranged in described secondary mixing section.
2. highly effective energy-conserving multi-stage heat and wet treatment aircondition according to claim 1, it is characterized in that: also comprise direct digital controller and host computer, described direct digital controller is connected with described host computer, described direct digital controller be respectively equipped with analog signals input port and export control signal port, described output control signal port respectively with described high-temperature level refrigeration unit, low-temperature level refrigeration unit, high-temperature level cool-down dehumidification refrigerant supply automatic regulating valve, low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve, high-temperature level cooling refrigerant supply automatic regulating valve, frequency conversion pressure fan, frequency conversion return fan, secondary return air automatic regulating valve, primary retirn air automatic regulating valve and air draft automatic regulating valve connect.
3. highly effective energy-conserving multi-stage heat and wet treatment aircondition according to claim 2, it is characterized in that: be provided with wind pushing temperature sensor, blasting humidity sensor and air-supply air flow sensor in described air supply section, described wind pushing temperature sensor, blasting humidity sensor and air-supply air flow sensor are connected with described analog signals input port respectively.
4. highly effective energy-conserving multi-stage heat and wet treatment aircondition according to claim 2, it is characterized in that: be provided with room temperature sensor, room humidity sensor, room gas concentration lwevel sensor and room differential pressure pickup in described room, described room temperature sensor, room humidity sensor, room gas concentration lwevel sensor and room differential pressure pickup are connected with described analog signals input port respectively.
5. utilize a processing method for the described highly effective energy-conserving multi-stage heat and wet treatment aircondition of any one in claim 1-4, it is characterized in that: the method at least comprises the steps:
Step 1: the hot and humid new wind outside described room is introduced by described fresh wind port, through the full heat of described air-to-air energy recovery equipment recovery section air draft or sensible heat energy, preliminary cooling and dehumidification;
Step 2: the discharge condensed water of the cool-down dehumidification surface cooler of the high-temperature level in described mixed once section and low-temperature level reducing temperature twice dehumidifying surface cooler is introduced condensed water Exposure degree surface cooler by condensing water conduit, reclaim condensed water sensible heat by condensed water Exposure degree surface cooler, reduce new air temperature further;
Step 3: the part primary retirn air after the adjustment of described primary retirn air automatic regulating valve is caused described mixed once Duan Yuxin wind mixing by described primary retirn air pipe;
Step 4: regulate by described high-temperature level cool-down dehumidification refrigerant supply automatic regulating valve the cold medium flux entering a described high-temperature level cool-down dehumidification surface cooler, utilize high-temperature level refrigerant to carry out a cool-down dehumidification to mixing air;
Step 5: regulated the low-temperature level refrigeration unit described in the cold medium flux and direct digital controller control entering low-temperature level reducing temperature twice dehumidifying surface cooler to regulate refrigerant supply temperature by described low-temperature level reducing temperature twice dehumidifying refrigerant supply automatic regulating valve;
Step 6: by described secondary returning airduct, the part room secondary return air after the adjustment of described secondary return air automatic regulating valve is caused described secondary mixing section and again mix with mixed once wind;
Step 7: regulated the high-temperature level refrigeration unit described in the cold medium flux and direct digital controller control entering described high-temperature level cooling surface cooler to regulate refrigerant supply temperature by described high-temperature level refrigerant supply automatic regulating valve;
Step 8: wet more than satisfactory air feeding air-conditioned room elimination room residual heat by described frequency conversion pressure fan;
Step 9: frequency conversion return fan circulates again by being supplied to air-supply loop outside air-conditioned room additional air part discharge chamber with part;
Step 10: air draft regulates exhaust air rate by described air draft automatic regulating valve, thus indirect regulation enters the resh air requirement in described room;
Step 11: air draft to regulate after exhaust air rate after described air-to-air energy recovery equipment recovers energy by described air draft automatic regulating valve, drains into outdoor by described exhaust outlet.
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| CN104864536B (en) | 2017-05-03 |
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