CN106500378A - Based on the efficient air conditioning unit and control method that high temperature refrigerant mixes again heat pattern - Google Patents
Based on the efficient air conditioning unit and control method that high temperature refrigerant mixes again heat pattern Download PDFInfo
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- CN106500378A CN106500378A CN201610862185.6A CN201610862185A CN106500378A CN 106500378 A CN106500378 A CN 106500378A CN 201610862185 A CN201610862185 A CN 201610862185A CN 106500378 A CN106500378 A CN 106500378A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a kind of efficient air conditioning unit and control method for mixing again heat pattern based on high temperature refrigerant, the present invention efficient air conditioning unit including air conditioner unit with condensation heat-sink unit, condensation heat-sink unit includes that compressor, condensation reheating flow regulator, condenser and condensation fan, air conditioner unit include reheater, reheating flow regulator, condensation thermal valve, supercool thermal valve again, supercool reheating flow regulator, bypass valve, bypass flow adjusting means, vaporizer, throttling arrangement and breeze fan again.Compared with prior art, the present invention can switch different high temperature side cold-producing mediums thermal source again by way of switching refrigerant line, from rational hot mode again, under conditions of ensureing system high energy efficiency ratio and meeting wind pushing temperature, whole unit effectively can be run in the range of design conditions.
Description
Technical field
The present invention relates to a kind of air conditioning unit, the efficient of heat pattern is mixed again based on high temperature refrigerant more particularly, to a kind of
Air conditioning unit and control method.
Background technology
With the development of society, requirement of the people to air quality is improved constantly, more and more where need to provide permanent
The environment of constant temperature and humidity.Traditional air conditioning unit environment in order to ensure constant temperature and humidity, its operation principle is：The vaporizer system of first passing through
Cold reduction need to process the temperature of air and dehumidify to dew point, reach default ventilation state afterwards by way of reheating.
During air conditioning unit reheating, had based on the hot mode again of refrigeration system high temperature side cold-producing medium following several：
1., using the mode (referred to as condensing hot mode again) of the condensation reheat heat of condensation full section, this mode overcomes traditional electrical heating
Reheating mode needs the shortcoming for consuming additional electrical energy.Thermal source derives from refrigeration system itself again, without the need for additionally consuming the energy, reclaims
Cold, reduces unit condensing pressure, and unit eer is higher.2. the mode of condensation reheat heat of super cooled sect is utilized (referred to as
For supercool hot mode again), which except have condensation reheating in addition to, compared to condensation reheating mode, air with
The heat transfer temperature difference of super cooled sect is less, and heat loss is less, and organic efficiency is higher, and therefore unit eer is higher.But due to super cooled sect
Entrained thermal Finite, therefore this mode of supercool reheating can range of operation narrower.
Therefore both have the limitation of oneself based on the mode of high temperature side cold-producing medium reheating.
Content of the invention
The purpose of the present invention is exactly to provide a kind of based on high-temperature refrigeration to overcome the defect of above-mentioned prior art presence
Agent mixes again the efficient air conditioning unit and control method of heat pattern, and the present invention can be cut by way of switching refrigerant line
Different high temperature side cold-producing mediums thermal source again is changed, from rational hot mode again, is being ensured system high energy efficiency ratio and is being met air-supply temperature
Under conditions of degree, whole unit effectively can be run in the range of design conditions.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of based on the efficient air conditioning unit of high temperature refrigerant mixing heat pattern again, dissipate with condensation including air conditioner unit
Hot cell, condensation heat-sink unit include compressor, condensation reheating flow regulator, condenser and condensation fan, air-treatment
Unit includes reheater, reheating flow regulator, condensation thermal valve, supercool thermal valve again, supercool reheating flow regulator, side again
Port valve, bypass flow adjusting means, vaporizer, throttling arrangement and breeze fan,
Condenser, vaporizer are respectively equipped with the sky of coolant channel and air duct, described breeze fan and vaporizer
Gas channel connection, described condensation fan are connected with the air duct of condenser,
Exhaust outlet of compressor, the coolant channel of condenser, supercool reheating flow regulator, supercool thermal valve again, reheating
Device, reheating flow regulator, throttling arrangement, the coolant channel of vaporizer, compressor air suction mouth are connected by pipeline order,
Form refrigerant circulation loop,
Exhaust outlet of compressor is connected with reheater entrance also by condensation reheating pipeline, described condensation reheating Flow-rate adjustment
Thermal valve is arranged on condensation reheating pipeline device again with condensation,
Bypass line is provided with refrigerant circulation loop, and the outlet of the bypass line connection condenser is entered with throttling arrangement
Mouthful, described bypass valve is arranged on bypass line with bypass flow adjusting means.
Described compressor is preferably frequency-changeable compressor.
Described reheater, vaporizer are air-cooled type heat exchanger.
The inlet air of described vaporizer can be the mixed wind of the return air, fresh air or return air and fresh air in room.
The inlet air state of the reheater is through the low temperature and low humidity air after vaporizer process.
The orifice size of described throttling arrangement is variable, as variable cross-section throttling arrangement, selected from electric expansion valve or heating power
Expansion valve；
Described condensation reheating flow regulator, supercool reheating flow regulator, bypass flow adjusting means are
Variable cross-section flow regulator, preferably electric expansion valve.
Described condensation thermal valve, supercool thermal valve again, the regulating valve that bypass valve has been Truncation again, preferably electromagnetic valve or section
Only valve.
How much described effect is air conditioning unit can be divided into " a small amount of reheating ", " medium again according to required heat again during work
Heat ", " a large amount of reheating " three kinds of mode of operations, the switching control strategy between three kinds of mode of operations is：From " a small amount of reheating " pattern
Start, switch to when the air themperature after bypass flow adjusting means aperture is almost 0, and reheating is still below design load " in
Etc. reheating " pattern, when, under " medium reheating " pattern, the air themperature after reheating is still below switching to " a large amount of reheating " during design load
Pattern.
Described is efficient air conditioning unit for, when under " a small amount of reheating " mode of operation, condensation reheating valve cuts out, supercool reheating
Valve and bypass valve opening, supercool reheating flow regulator and reheating flow regulator standard-sized sheet, cold-producing medium are acted in compressor
Under become high temperature and high pressure steam, through connecting tube enter condenser heat rejection, a part condensation cold-producing medium reheating is entered by pipeline
Device further supercool heat release, another part are being saved with another part cold-producing medium then by pipeline through bypass flow adjusting means
After converging before stream device, common throttling enters vaporizer, evaporation endothermic, cooling air, then returns compression from the air entry of compressor
Machine, completes kind of refrigeration cycle.
Control strategy under " a small amount of reheating " mode of operation is：Refrigeration duty of the rotating speed of described compressor according to vaporizer
It is adjusted, the aperture of throttling arrangement ensures the suction superheat of compressor air suction mouth, the aperture root of bypass flow adjusting means
Air themperature after according to reheating is adjusted.After bypass flow adjusting means reaches maximum opening and reheating, wind pushing temperature is still high
When setting value, the aperture that can reduce supercool reheating flow regulator or reheating flow control valve does further temperature tune
Section.
Described is efficient air conditioning unit for, when under " medium reheating " mode of operation, thermal valve and bypass valve are closed again for condensation,
Supercool reheating valve is opened, supercool reheating flow regulator standard-sized sheet, and cold-producing medium becomes high temperature and high pressure steam under compressor effect,
Condenser heat rejection is entered through connecting tube, reheater further supercool heat release is entered by pipeline, is throttled by throttling arrangement laggard
Enter vaporizer, evaporation endothermic, cooling air, then compressor is returned from the air entry of compressor, complete kind of refrigeration cycle；
Control strategy under " medium reheating " mode of operation is, the refrigeration duty of the rotating speed of described compressor according to vaporizer
It is adjusted, the aperture of throttling arrangement ensures the suction superheat of compressor air suction mouth.
Described is efficient air conditioning unit for, when under " a large amount of reheating " mode of operation, thermal valve and supercool thermal valve again are beaten again for condensation
Open, bypass valve cuts out, supercool reheating flow regulator and reheating flow regulator standard-sized sheet, cold-producing medium is under compressor effect
Becoming high temperature and high pressure steam, condenser heat rejection being partly into through connecting tube, a part is by pipeline by condensing heat flow again
Converge with the condensed cold-producing medium of the condensed device of another part after adjusting means, enter jointly the further heat release of reheater, then
Vaporizer, evaporation endothermic, cooling air are entered through throttling arrangement throttling by pipeline connection, then is returned from the air entry of compressor
Compressor, completes kind of refrigeration cycle；
Control strategy under " a large amount of reheating " mode of operation is, the refrigeration duty of the rotating speed of described compressor according to vaporizer
It is adjusted, the aperture of throttling arrangement ensures the suction superheat of compressor air suction mouth, condenses opening for reheating flow regulator
Air themperature after spending according to reheating is adjusted.Blow when condensing after reheating flow regulator reaches maximum opening and reheating
When temperature is still below setting value, the aperture that can reduce supercool reheating flow regulator does further temperature adjustment.
Compared with prior art, the present invention has advantages below：
1. replace electrical heating with refrigeration system high temperature waste hot, extra energy hot-air again need not be consumed, and can be realized
Humiture is independently precisely controlled；
2. the mode based on high temperature refrigerant reheating, has reclaimed system high temperature used heat, improves high temperature side heat exchange, effectively carries
Unit performance is risen；
3. according to needed for heat again difference, system is switched in three kinds of mode of operations by the switching of pipeline, system
Optimal operational condition is in extensive range of operation, refrigerating efficiency is improve.
Description of the drawings
Fig. 1 is the efficient air conditioning unit schematic flow sheet for mixing again heat pattern in embodiment 1 based on high temperature refrigerant.
Schematic flow sheets of the Fig. 2 for embodiment 2.
Schematic flow sheets of the Fig. 3 for embodiment 3.
In figure, 1 is compressor, and 2 is condenser, and 3 is reheater, and 4 is vaporizer, and 5 are condensation reheating flow regulator,
6 is supercool reheating flow regulator, and 7 is bypass flow adjusting means, and 8 is reheating flow regulator, and 9 are condensation reheating
Valve, 10 is supercool thermal valve again, and 11 is bypass valve, 12 throttling arrangements, 13 condensation fans, and 14 is breeze fan, and remaining is connecting tube.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of based on the efficient air conditioning unit of high temperature refrigerant mixing heat pattern again, as shown in figure 1, including air-treatment list
Unit and condensation heat-sink unit, condensation heat-sink unit include compressor 1, condensation reheating flow regulator 5, condenser 2 and condensation
Blower fan 13, air conditioner unit include reheater 3, reheating flow regulator 8, condensation reheating valve 9, supercool reheating valve 10, mistake
Cold reheating flow regulator 6, bypass valve 11, bypass flow adjusting means 7, vaporizer 4, throttling arrangement 12 and breeze fan
14, condenser 2, vaporizer 4 are respectively equipped with the sky of coolant channel and air duct, described breeze fan 14 and vaporizer 4
Gas channel connection, described condensation fan 13 are connected with the air duct of condenser.1 air vent of compressor, the refrigeration of condenser 2
Agent passage, supercool reheating flow regulator 6, supercool reheating valve 10, reheater 3, reheating flow regulator 8, throttling arrangement
12nd, the coolant channel of vaporizer 4,1 air entry of compressor are connected by pipeline order, form refrigerant circulation loop, compression
1 air vent of machine is connected with 3 entrance of reheater also by condensation reheating pipeline, described condensation reheating flow regulator 5 with cold
Solidifying reheating valve 9 is arranged on condensation reheating pipeline, is provided with bypass line on refrigerant circulation loop, and the bypass line connection is cold
The outlet of condenser 2 and 12 entrance of throttling arrangement, described bypass valve 11 are arranged on bypass line with bypass flow adjusting means 7
On.
Specifically, 1 air vent of compressor is connected with connecting tube 16 and connecting tube 19 respectively by connecting tube 15, connecting tube
16th, condenser 2 is connected with bypass valve 11, supercool reheating flow regulator 6 respectively by connecting tube 17, bypass valve 11, bypass
Flow regulator 7, connecting tube 18,21 order of connecting tube are connected, and connecting tube 19, condensation reheating flow regulator 5, condensation are again
Thermal valve 9, reheater 3 by pipeline order be connected, supercool reheating flow regulator 6, supercool reheating valve 10, by pipeline with again
The order of hot device 3 is connected, reheater 3, reheating flow control valve 8, connecting tube 20, connecting tube 21, throttling arrangement 12, connecting tube 22,
Vaporizer 4, connecting tube 23,1 air entry of compressor order are connected.
In the present embodiment, compressor 1 is preferably frequency-changeable compressor.Condenser 2, reheater 3, vaporizer 4 are Wind-cooling type
Heat exchanger.The inlet air of vaporizer 4 can be the mixed wind of the return air, fresh air or return air and fresh air in room.The reheater 3
Inlet air state be through vaporizer 4 process after low temperature and low humidity air.The orifice size of throttling arrangement 12 is variable, as becomes
Cross section restriction device, selected from electric expansion valve or heating power expansion valve；Condensation reheating flow regulator 5, supercool reheating flow is adjusted
Regulating device 6, bypass flow adjusting means 7 are variable cross-section flow regulator, preferably electric expansion valve.Condensation reheating valve 9, mistake
Cold reheating valve 10, the regulating valve that bypass valve 11 has been Truncation, selected from electromagnetic valve or stop valve.
Efficiently air conditioning unit according to required heat again during work how much can be divided into " a small amount of reheating ", " medium reheating ",
" a large amount of reheating " three kinds of mode of operations, the switching control strategy between three kinds of mode of operations is：Start from " a small amount of reheating " pattern,
Air themperature after 7 aperture of bypass flow adjusting means is almost 0, and reheating is switched to when being still below design load " medium again
Heat " pattern, when, under " medium reheating " pattern, the air themperature after reheating is still below switching to " a large amount of reheating " mould during design load
Formula.
Efficiently air conditioning unit for when under " a small amount of reheating " mode of operation, condensation reheating valve 9 cuts out, supercool 10 He of reheating valve
Bypass valve 11 is opened, 8 standard-sized sheet of supercool reheating flow regulator 6 and reheating flow control valve, and cold-producing medium is under the effect of compressor 1
Becoming high temperature and high pressure steam, 2 heat release of condenser being entered through connecting tube, the cold-producing medium of part condensation enters reheater by pipeline
3 further supercool heat releases, another part are being saved with another part cold-producing medium then by pipeline through bypass flow adjusting means 7
After converging before stream device 12, common throttling enters vaporizer 4, evaporation endothermic, cooling air, then returns from the air entry of compressor 1
Compressor 1, completes kind of refrigeration cycle.
Control strategy under " a small amount of reheating " mode of operation is：The rotating speed of compressor 1 is carried out according to the refrigeration duty of vaporizer 4
Adjust, the aperture of throttling arrangement 12 ensures the suction superheat of 1 air entry of compressor, the aperture root of bypass flow adjusting means 7
Air themperature after according to reheating is adjusted, when wind pushing temperature after reaching maximum opening and reheating of bypass flow adjusting means 7
When remaining above setting value, the aperture that can reduce supercool reheating flow regulator 6 or reheating flow control valve 8 does further temperature
Degree is adjusted.
Efficiently air conditioning unit for when under " medium reheating " mode of operation, condensation reheating valve 9 and bypass valve 11 are closed, supercool
Reheating valve 10 is opened, 8 standard-sized sheet of supercool reheating flow regulator 6 and reheating flow control valve, and cold-producing medium is under the effect of compressor 1
Become high temperature and high pressure steam, 2 heat release of condenser is entered through connecting tube, the further supercool heat release of reheater 3 is entered by pipeline, lead to
Cross and after throttling arrangement 12 throttles, enter vaporizer 4, evaporation endothermic, cooling air, then compressor is returned from the air entry of compressor 1
1, complete kind of refrigeration cycle；
Control strategy under " medium reheating " mode of operation is that the rotating speed of compressor 1 is carried out according to the refrigeration duty of vaporizer 4
Adjust, the aperture of throttling arrangement 12 ensures the suction superheat of 1 air entry of compressor." medium reheating " can be considered as between " few
Amount reheating " and the intermediateness of " a large amount of reheating ".
It is efficiently air conditioning unit that condensation reheating valve 9 and supercool reheating valve 10 are opened for when under " a large amount of reheating " mode of operation,
Bypass valve 11 cuts out, 8 standard-sized sheet of supercool reheating flow regulator 6 and reheating flow control valve, and cold-producing medium is under the effect of compressor 1
Becoming high temperature and high pressure steam, 2 heat release of condenser being partly into through connecting tube, a part is by pipeline by condensing heat flow again
Converge with the condensed 2 condensed cold-producing medium of device of another part after adjusting means 5, common entrance 3 further heat release of reheater, so
Vaporizer 4, evaporation endothermic, cooling air, then the air-breathing from compressor 1 are entered through the throttling of throttling arrangement 12 by pipeline connection afterwards
Mouth returns compressor 1, completes kind of refrigeration cycle；
Control strategy under " a large amount of reheating " mode of operation is that the rotating speed of compressor 1 is carried out according to the refrigeration duty of vaporizer 4
Adjust, the aperture of throttling arrangement 12 ensures the suction superheat of 1 air entry of compressor.Condense opening for reheating flow regulator 5
Air themperature after spending according to reheating is adjusted, when condensation reheating flow regulator 5 is after reaching maximum opening and reheating
When wind pushing temperature is still below setting value, the aperture that can reduce supercool reheating flow regulator 6 does further temperature adjustment.
Embodiment 2
A kind of based on the efficient air conditioning unit of high temperature refrigerant mixing heat pattern again, as shown in Figure 2.Compared with Example 1,
Eliminate supercool reheating flow regulator 6 and reheating flow regulator 8.The advantage of embodiment 2 is to have saved cost, but
Identical regulating effect can be played, shortcoming is under extreme case that (heat is especially little or heat accounts for condensation heat release ratio again again
Especially high) regulating power not as good as embodiment 1.
Embodiment 3
A kind of based on the efficient air conditioning unit of high temperature refrigerant mixing heat pattern again, as shown in Figure 3.Compared with Example 1,
Eliminate condensation reheating flow regulator 5 and supercool reheating flow regulator 6.
When under " a large amount of reheating " mode of operation, condensation reheating valve 9 is opened, and bypass valve 11 and supercool reheating valve 10 are closed, system
Cryogen becomes high temperature and high pressure steam under the effect of compressor 1, is partly into 2 heat release of condenser through connecting tube, and a part passes through
Connecting refrigerant lines are directly entered the hot-air again of reheater 3.Then all throttlings of cold-producing medium warp knuckle stream device 12 enter vaporizer
4, evaporation endothermic, cooling air, then compressor 1 is returned from the air entry of compressor 1, complete kind of refrigeration cycle.Adjusted by reheating flow
Regulating device 8 adjusts the temperature after reheating.
Compared with Example 1, the advantage of embodiment 3 is to have saved cost, but can play identical regulating effect, lacks
Point is to be only capable of under " a large amount of reheating " pattern using condensation reheating, unit operation scope and Energy Efficiency Ratio than embodiment 1 under
Drop.
Completely do not show all parts of refrigerant cycle in above-described embodiment, in implementation process, set in refrigerant loop
The common refrigeration auxiliary such as four-way change-over valve, reservoir, gas-liquid separator, separating of oil, filter, exsiccator is put, can not be considered as
Substantial improvements are carried out to the present invention, the scope of the present invention should have been belonged to.
Above-described embodiment is not limited to single cooling system, and heat pump is carried using technical scheme under cooling condition
High refrigeration performance, should belong to the scope of the present invention.
Above-described embodiment is not limited to air cooling system, and water-cooling system improves refrigeration performance using technical scheme,
The scope of the present invention should be belonged to.
The word such as " condensation reheating " used herein, " supercool reheating ", " bypass " is limiting part, those skilled in the art
Should know：The use of the word such as " condensation reheating ", " supercool reheating ", " bypass " is intended merely to facilitate in description to enter part
Row difference.Outside such as without Stated otherwise, above-mentioned word does not have special implication.
Finally it should be noted that：Above example is only in order to illustrating technical scheme rather than a limitation；To the greatest extent
Pipe has been described in detail to the present invention with reference to preferred embodiment, and those of ordinary skill in the art still can be to this
Bright specific embodiment is modified or carries out equivalent to some technical characteristics, but as long as without departing from the technology of the present invention
The spirit of scheme, its all should cover in the middle of the technical scheme scope that the present invention is claimed.
Claims (10)
1. a kind of based on the efficient air conditioning unit of high temperature refrigerant mixing heat pattern again, it is characterised in that including air-treatment list
Unit and condensation heat-sink unit, condensation heat-sink unit include compressor (1), condensation reheating flow regulator (5), condenser (2)
And condensation fan (13), air conditioner unit includes reheater (3), reheating flow regulator (8), condensation thermal valve (9), mistake again
Cold thermal valve again (10), supercool reheating flow regulator (6), bypass valve (11), bypass flow adjusting means (7), vaporizer
(4), throttling arrangement (12) and breeze fan (14),
Condenser (2), vaporizer (4) are respectively equipped with coolant channel and air duct, described breeze fan (14) and evaporation
The air duct connection of device (4), described condensation fan (13) are connected with the air duct of condenser,
Compressor (1) air vent, the coolant channel of condenser (2), supercool reheating flow regulator (6), supercool thermal valve again
(10), reheater (3), reheating flow regulator (8), throttling arrangement (12), the coolant channel of vaporizer (4), compressor
(1) air entry is connected by pipeline order, forms refrigerant circulation loop,
Compressor (1) air vent is connected with reheater (3) entrance also by condensation reheating pipeline, and described condensation reheating flow is adjusted
Thermal valve (9) is arranged on condensation reheating pipeline regulating device (5) again with condensation,
Bypass line is provided with refrigerant circulation loop, and the bypass line connects the outlet of condenser (2) and throttling arrangement
(12) entrance, described bypass valve (11) are arranged on bypass line with bypass flow adjusting means (7).
2. a kind of efficient air conditioning unit, its feature based on high temperature refrigerant mixing heat pattern again according to claim 1
It is, described reheater (3), vaporizer (4) are air-cooled type heat exchanger.
3. a kind of efficient air conditioning unit, its feature based on high temperature refrigerant mixing heat pattern again according to claim 1
It is, the inlet air of described vaporizer (4) is the mixed wind of the return air, fresh air or return air and fresh air in room.
4. a kind of efficient air conditioning unit, its feature based on high temperature refrigerant mixing heat pattern again according to claim 1
It is, the inlet air state of reheater (3) is through the low temperature and low humidity air after vaporizer (4) process.
5. a kind of efficient air conditioning unit, its feature based on high temperature refrigerant mixing heat pattern again according to claim 1
It is, the orifice size of described throttling arrangement (12) is variable, as variable cross-section throttling arrangement, selected from electric expansion valve or heating power
Expansion valve；
Described condensation reheating flow regulator (5), supercool reheating flow regulator (6), bypass flow adjusting means (7)
It is variable cross-section flow regulator, preferably electric expansion valve.
6. a kind of efficient air conditioning unit, its feature based on high temperature refrigerant mixing heat pattern again according to claim 1
It is, thermal valve (9), supercool thermal valve again (10), bypass valve (11) have been the regulating valve of Truncation again for described condensation, preferably
Electromagnetic valve or stop valve.
7. the efficient air conditioning unit control method any one of claim 1-6, it is characterised in that described effect air-conditioning
How many units is divided into " a small amount of reheating ", " medium reheating ", " a large amount of reheating " three kinds of Working moulds according to required heat again during work
Formula, the switching control strategy between three kinds of mode of operations is：Start from " a small amount of reheating " pattern, when bypass flow adjusting means
(7) aperture is still below switching to " medium reheating " pattern during design load for the air themperature behind 0, and reheating, when " medium reheating "
Under pattern, the air themperature after reheating is still below switching to " a large amount of reheating " pattern during design load.
8. efficiently air conditioning unit control method according to claim 7, it is characterised in that described is efficient air conditioning unit
For, when under " a small amount of reheating " mode of operation, thermal valve (9) cuts out again for condensation, and supercool thermal valve again (10) and bypass valve (11) are opened,
Supercool reheating flow regulator (6) and reheating flow control valve (8) standard-sized sheet, cold-producing medium become high under compressor (1) effect
Warm high steam, enters condenser (2) heat release through connecting tube, and the cold-producing medium of part condensation enters reheater (3) by pipeline
Further supercool heat release, another part are being saved with another part cold-producing medium then by pipeline through bypass flow adjusting means (7)
After converging before stream device (12), common throttling enters vaporizer (4), evaporation endothermic, cooling air, then the air-breathing from compressor (1)
Mouth returns compressor (1), completes kind of refrigeration cycle；
Control strategy under " a small amount of reheating " mode of operation is：The rotating speed of described compressor (1) is according to the cold negative of vaporizer (4)
Lotus is adjusted, and the aperture of throttling arrangement (12) ensures the suction superheat of compressor (1) air entry, bypass flow adjusting means
(7) aperture according to reheating after air themperature be adjusted, reach maximum opening and again when bypass flow adjusting means (7)
When wind pushing temperature remains above setting value after heat, supercool reheating flow regulator (6) or reheating flow control valve (8) can be reduced
Aperture do further temperature adjustment.
9. efficiently air conditioning unit control method according to claim 7, it is characterised in that described is efficient air conditioning unit
For, when under " medium reheating " mode of operation, thermal valve (9) and bypass valve (11) are closed again for condensation, and supercool thermal valve again (10) open,
Supercool reheating flow regulator (6) standard-sized sheet, cold-producing medium become high temperature and high pressure steam under compressor (1) effect, through connecting tube
Condenser (2) heat release is entered, reheater (3) further supercool heat release is entered by pipeline, after throttling arrangement (12) throttles
Vaporizer (4), evaporation endothermic, cooling air is entered, then compressor (1) is returned from the air entry of compressor (1), complete refrigeration and follow
Ring；
Control strategy under " medium reheating " mode of operation is that the rotating speed of described compressor (1) is born according to the cold of vaporizer (4)
Lotus is adjusted, and the aperture of throttling arrangement (12) ensures the suction superheat of compressor (1) air entry.
10. efficiently air conditioning unit control method according to claim 7, it is characterised in that described efficient air conditioner
Group is for, when under " a large amount of reheating " mode of operation, thermal valve (9) and supercool thermal valve again (10) are opened again for condensation, and bypass valve (11) is closed
Close, supercool reheating flow regulator (6) and reheating flow control valve (8) standard-sized sheet, cold-producing medium becomes under compressor (1) effect
High temperature and high pressure steam, is partly into condenser (2) heat release through connecting tube, and a part is adjusted by condensing reheating flow by pipeline
Regulating device (5) is converged with the condensed cold-producing medium of the condensed device of another part (2) afterwards, is entered jointly reheater (3) and is further put
Heat, is then throttled through throttling arrangement (12) by pipeline connection and enters vaporizer (4), evaporation endothermic, cooling air, then from compression
The air entry of machine (1) returns compressor (1), completes kind of refrigeration cycle；
Control strategy under " a large amount of reheating " mode of operation is that the rotating speed of described compressor (1) is born according to the cold of vaporizer (4)
Lotus is adjusted, and the aperture of throttling arrangement (12) ensures the suction superheat of compressor (1) air entry, condenses reheating Flow-rate adjustment
The aperture of device (5) according to reheating after air themperature be adjusted, when condensation reheating flow regulator (5) reaches maximum and opens
When after degree and reheating, wind pushing temperature is still below setting value, the aperture that can reduce supercool reheating flow regulator (6) is done into one
Step temperature adjustment.
Priority Applications (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925876A (en) * | 2019-12-16 | 2020-03-27 | 湖南红橡室内气候技术有限公司 | Serial-type single cold heat source fresh air humidifying unit |
| CN111031759A (en) * | 2019-12-20 | 2020-04-17 | 漳州科华技术有限责任公司 | Machine room air conditioning device and control method |
| CN114263991A (en) * | 2021-12-03 | 2022-04-01 | 雅凯热能技术(江苏)有限公司 | Fresh air dehumidification system |
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| CN101248319A (en) * | 2005-08-23 | 2008-08-20 | 开利公司 | System reheating control using width pulse modulation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110925876A (en) * | 2019-12-16 | 2020-03-27 | 湖南红橡室内气候技术有限公司 | Serial-type single cold heat source fresh air humidifying unit |
| CN111031759A (en) * | 2019-12-20 | 2020-04-17 | 漳州科华技术有限责任公司 | Machine room air conditioning device and control method |
| CN114263991A (en) * | 2021-12-03 | 2022-04-01 | 雅凯热能技术(江苏)有限公司 | Fresh air dehumidification system |
| CN114263991B (en) * | 2021-12-03 | 2024-01-30 | 雅凯热能技术(江苏)有限公司 | Fresh air dehumidification system |
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Application publication date: 20170315 |