CN110230849A - A kind of all fresh air air-conditioning system and its application method based on oilless (oil free) compressor - Google Patents
A kind of all fresh air air-conditioning system and its application method based on oilless (oil free) compressor Download PDFInfo
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- CN110230849A CN110230849A CN201910390279.1A CN201910390279A CN110230849A CN 110230849 A CN110230849 A CN 110230849A CN 201910390279 A CN201910390279 A CN 201910390279A CN 110230849 A CN110230849 A CN 110230849A
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
- F24F11/67—Switching between heating and cooling modes
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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
- F24F13/28—Arrangement or mounting of filters
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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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
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
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- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of all fresh air air-conditioning system and its application method based on oilless (oil free) compressor, the fresh inlet is set to the right end of primary filter section, the primary filter section, fresh-air fan, first fillter section, oilless (oil free) compressor, second fillter section, first mixing section successively connects in sequence from left to right, the front of the fresh-air fan is connected with the second mixing section, the left end of second mixing section is successively linked in sequence the 5th fillter section, surface cooling condenser, 4th fillter section, exhaust fan, third fillter section, air draft entrance, the beneficial effects of the present invention are: the comprehensive high-efficiency for realizing the cold and hot energy of refrigeration system on the whole utilizes；Indoor air exhaust system and air-supply wind system are designed for uniformity, summer reduces system condensing temperature, and the evaporating temperature of winter lifting system greatly improves system energy efficiency, and the generation of the frosting problem fundamentally prevented；The efficiency of refrigeration system is greatly improved；Host efficiency is high.
Description
Technical field
The present invention relates to refrigerated air-conditioning system design field, specially a kind of all-fresh air based on oilless (oil free) compressor is empty
Adjusting system and its application method.
Background technique
With the development of science and technology, many technique buildings and equipment and production link are required in stationary temperature, humidity
With cleanliness working environment, thus need using all-fresh air carry out cold and heat supply, as automobile production painting workshop, public place of entertainment,
The occasions such as hospital operating room.
However the energy consumption of wholly fresh air is very huge, wholly fresh air is usually than traditional air-coil+fresh air system
Energy consumption to be higher by 2 ~ 5 times or so.If summer outdoor environment wet and dry bulb is 35 DEG C/29.4 DEG C, it is dry to need to be reduced to setting
17 DEG C/16 DEG C of wet-bulb temperature to realize 26 DEG C/20 DEG C of control area environment wet and dry bulb temperature, while the air quantity that control area is extra
It then needs to drain into atmospheric environment.Under normal conditions, providing 7 DEG C ~ 12 DEG C chilled waters using water cooler reduces cool-down dehumidification
Reach given temperature and humidity, the fresh air for reaching control zone is mixed with interior, and extra air quantity is discharged to outdoor by exhaust blower.
Winter such as outdoor dry bulb and wet bulb are 7 DEG C/6 DEG C, need to be increased to 32 DEG C/20 DEG C of setting wet and dry bulb temperature with
Realize 20 DEG C/14 DEG C of control area environment wet and dry bulb temperature, while the extra air quantity in control area then needs to drain to big compression ring
In border.In the case of, realize that the Temperature and Humidity Control is that boiler provides hot water and steam to provide heat and water capacity.Entirely
Process consumes non-renewable energy and electric energy, and needs to invest two sets of equipment of water cooler and boiler, and resource utilization is also relatively low；
Traditional wholly fresh air is due to characteristic issues such as techniques, and often capacity usage ratio is low, thus system operation energy consumption is caused to occupy
It is high not under, therefore, based on all fresh air air-conditioning system, fully consider that heat pump system exists while providing cold source side and heat source side
The characteristics of, air draft energy is made full use of, it is then most important to the energy-efficient operation of realization wholly fresh air.
Summary of the invention
The purpose of the present invention is to provide a kind of all fresh air air-conditioning system and its application method based on oilless (oil free) compressor, with
Solve the problems mentioned above in the background art.
To achieve the above object, the invention provides the following technical scheme: a kind of all-fresh air air-conditioning based on oilless (oil free) compressor
System, including it is fresh inlet, primary filter section, advanced fillter section, fresh-air fan, the first fillter section, surface cooling evaporator, oil-free
Compressor, surface cooling condenser, gravity force liquid-supply filling, electric expansion valve, the second fillter section, the first mixing section, fresh air outlet, air draft
Entrance, third fillter section, exhaust fan, the 4th fillter section, the 5th fillter section, the second mixing section and wind exhausting outlet, the fresh air
Import is set to the right end of primary filter section, the primary filter section, fresh-air fan, the first fillter section, oilless (oil free) compressor, second
Fillter section, the first mixing section successively connect in sequence from left to right, and the front of the fresh-air fan is connected with the second mixing section
It connects, the left end of second mixing section is successively linked in sequence the 5th fillter section, surface cooling condenser, the 4th fillter section, air draft wind
Machine, third fillter section, air draft entrance, the front setting wind exhausting outlet of second mixing section.
Preferably, the gravity force liquid-supply filling, oilless (oil free) compressor and electric expansion valve are all set in the top of surface cooling evaporator
Portion, the gravity force liquid-supply filling are connected with oilless (oil free) compressor and electric expansion valve respectively, the oilless (oil free) compressor and electronic expansion
It is connected between valve by surface cooling condenser, the third fillter section, the 5th fillter section, the second fillter section and the 4th fillter section
It is inside provided with change-over panel, the change-over panel is activity setting.
A kind of all fresh air air-conditioning system and its application method based on oilless (oil free) compressor, including freeze and heat two kinds of differences
Mode.
Preferably, the refrigeration mode the following steps are included:
A1: the fresh air of high temperature and humidity enters the system by fresh inlet, then by primary filter section, advanced fillter section, new
Wind blower is inhaled into, and by First Transition section and the cold evaporator of table, air reaches setting temperature and humidity by cool-down dehumidification, is passing through the
Two changeover portions and the first mixing section are then discharged out into Administrative Area；
A2: the air draft to come from Administrative Area is sucked by the 4th fillter section and exhaust fan, and then air draft passes through third transition
Section and surface cooling evaporator, temperature of outgoing air reduce, and then pass through the 4th changeover portion, the second mixing section and wind exhausting outlet discharge；
A3: the refrigerant gas of high temperature and pressure is discharged into surface cooling condenser from the exhaust outlet of oilless (oil free) compressor, by its heat
Become normal temperature high voltage refrigerant liquid after being released to air draft, refrigerant liquid becomes low-pressure low-temperature after throttling by electric expansion valve
Gas-liquid mixture enter gravity force liquid-supply tank, wherein gas part is on top, and liquid portion is in lower part；The refrigerant of low-temp low-pressure
Liquid flows under the influence of gravity into the cold evaporator of table, becomes gaseous refrigerant after absorbing the heat of fresh air, in liquid and gaseous state
Density contrast driving force under flow back to gravity force liquid-supply tank, the gaseous refrigerant of gravity force liquid-supply tank top then returns in oilless (oil free) compressor
Complete refrigeration cycle.
Preferably, the heating mode the following steps are included:
B1: making fresh-air fan be connected with surface cooling condenser by change-over panel and change place first, the surface cooling condenser
It is connected again with the first mixing section；
B2: the fresh air of low temperature enters the system by fresh inlet, then passes through primary filter section, advanced fillter section, fresh air wind
Machine is inhaled into, and then enters table cool condenser section by change-over panel, and air, which is warmed, reaches setting operating condition, is passing through the second changeover portion
It is then discharged out with the first mixing section into Administrative Area；
B3: the air draft to come from Administrative Area is sucked by the 4th fillter section and exhaust fan, then air draft by change-over panel into
Enter surface cooling evaporator, temperature of outgoing air increases, and then passes through the 4th changeover portion, the second mixing section and wind exhausting outlet discharge；
B4: the refrigerant gas of high temperature and pressure is discharged into surface cooling condenser from the exhaust outlet of oilless (oil free) compressor, by its heat
Amount becomes normal temperature high voltage refrigerant liquid after being released to air draft, and it is low that refrigerant liquid becomes low pressure after throttling by electric expansion valve
The gas-liquid mixture of temperature enters gravity force liquid-supply tank, and wherein gas part is on top, and liquid portion is in lower part；The refrigeration of low-temp low-pressure
Agent liquid flows under the influence of gravity into the cold evaporator of table, becomes gaseous refrigerant after absorbing the heat of fresh air, gentle in liquid
Gravity force liquid-supply tank is flowed back under the driving force of the density contrast of state, the gaseous refrigerant of gravity force liquid-supply tank top then returns to oilless (oil free) compressor
Middle completion refrigeration cycle.
Compared with prior art, the beneficial effects of the present invention are:
1. the comprehensive high-efficiency for realizing the cold and hot energy of refrigeration system on the whole utilizes；
2. indoor air exhaust system and supply air system are designed for uniformity, summer reduces system condensing temperature, and winter promotes system
The evaporating temperature of system greatly improves system energy efficiency, and has fundamentally prevented the generation of frosting problem；
3. the switching of summer in winter cooling and warming is realized only by the switching of fresh air and exhaust duct valve, without host addition four
Logical reversal valve, host efficiency are high；
4. using oilless (oil free) compressor and using gravity force liquid-supply, the efficiency of refrigeration system is greatly improved.
Detailed description of the invention
Fig. 1 is refrigeration mode structural schematic diagram of the present invention；
Fig. 2 is heating mode structural schematic diagram of the present invention；
Fig. 3 is that gravity force liquid-supply of the present invention fills structure connection figure；
Fig. 4 is three structural schematic diagram of the embodiment of the present invention.
In figure: 1 fresh inlet, 2 primary filter sections, 3 advanced fillter sections, 4 fresh-air fans, 5 first fillter sections, the evaporation of 6 surface coolings
Device, 7 oilless (oil free) compressors, 8 surface cooling condensers, the filling of 9 gravity force liquid-supplies, 10 electric expansion valves, 11 second fillter sections, 12 first mixing
Section, the outlet of 13 fresh airs, 14 air draft entrances, 15 third fillter sections, 16 exhaust fans, 17 the 4th fillter sections, 18 the 5th fillter sections, 19
Second mixing section, 20 wind exhausting outlets, 21 change-over panels, 22 electric telescopic rods.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of all-fresh air air-conditioning system based on oilless (oil free) compressor
System, including fresh inlet 1, primary filter section 2, advanced fillter section 3, fresh-air fan 4, the first fillter section 5, surface cooling evaporator 6,
Oilless (oil free) compressor 7, surface cooling condenser 8, gravity force liquid-supply fill 9, electric expansion valve 10, the second fillter section 11, the first mixing section 12,
Fresh air exports 13, air draft entrance 14, third fillter section 15, exhaust fan 16, the 4th fillter section 17, the 5th fillter section 18, second
Mixing section 19 and wind exhausting outlet 20, the fresh inlet 1 are set to the right end of primary filter section 2, the primary filter section 2, new
Wind blower 4, the first fillter section 5, oilless (oil free) compressor 7, the second fillter section 11, the first mixing section 12 are from left to right successively in sequence
The front of connection, the fresh-air fan 4 is connected with the second mixing section 19, and the left end of second mixing section 19 successively sequentially connects
Connect the 5th fillter section 18, surface cooling condenser 8, the 4th fillter section 17, exhaust fan 16, third fillter section 15, air draft entrance 14,
The front setting wind exhausting outlet 20 of second mixing section 19, it is notable that the gravity force liquid-supply fills 9, oilless (oil free) compressor 7
Be all set in the top of surface cooling evaporator 6 with electric expansion valve 10, the gravity force liquid-supply fill 9 respectively with oilless (oil free) compressor 7 and
Electric expansion valve 10 is connected, and is connected between the oilless (oil free) compressor 7 and electric expansion valve 10 by surface cooling condenser 8,
It is provided with change-over panel 21 in the third fillter section 15, the 5th fillter section 18, the second fillter section 11 and the 4th fillter section 17, institute
Change-over panel 21 is stated as activity setting.
A kind of all fresh air air-conditioning system and its application method based on oilless (oil free) compressor, including freeze and heat two kinds of differences
Mode.Wherein, the refrigeration mode the following steps are included:
A1: the fresh air of high temperature and humidity by fresh inlet 1 enter the system, then by primary filter section 2, advanced fillter section 3,
Fresh-air fan 4 is inhaled into, and by First Transition section 5 and the cold evaporator 8 of table, air reaches setting temperature and humidity by cool-down dehumidification,
It is then discharged out by the second changeover portion 11 and the first mixing section 12 into Administrative Area；
A2: the air draft to come from Administrative Area is sucked by the 4th fillter section 17 and exhaust fan 16, and then air draft passes through third
Changeover portion 15 and surface cooling evaporator 8, temperature of outgoing air reduce, and then pass through the 4th changeover portion 17, the second mixing section 19 and air draft
20 discharge of outlet；
A3: the refrigerant gas of high temperature and pressure is discharged into surface cooling condenser 8 from the exhaust outlet of oilless (oil free) compressor 7, by its heat
Amount becomes normal temperature high voltage refrigerant liquid after being released to air draft, and refrigerant liquid becomes low pressure after throttling by electric expansion valve 10
The gas-liquid mixture of low temperature enters gravity force liquid-supply tank 9, and wherein gas part is on top, and liquid portion is in lower part；Low-temp low-pressure
Refrigerant liquid flows under the influence of gravity into the cold evaporator 6 of table, becomes gaseous refrigerant after absorbing the heat of fresh air, in liquid
With flow back to gravity force liquid-supply tank 9 under the driving force of gaseous density contrast, the gaseous refrigerant at 9 top of gravity force liquid-supply tank then returns to oil-free
Refrigeration cycle is completed in compressor 7.
The heating mode the following steps are included:
B1: first by change-over panel 21 and change place makes fresh-air fan 4 be connected with surface cooling condenser 8, the surface cooling is cold
Condenser 8 is connected with the first mixing section 12 again；
B2: the fresh air of low temperature enters the system by fresh inlet 1, then passes through primary filter section 2, advanced fillter section 3, fresh air
Blower 4 is inhaled into, and then enters 8 sections of table cool condenser by change-over panel 12, and air, which is warmed, reaches setting operating condition, is passing through second
Changeover portion 11 and the first mixing section 12 are then discharged out into Administrative Area；
B3: the air draft to come from Administrative Area is sucked by the 4th fillter section 17 and exhaust fan 16, and then air draft passes through conversion
Plate 21 enters surface cooling evaporator 8, and temperature of outgoing air increases, and then passes through the 4th changeover portion (17), the second mixing section 19 and air draft
20 discharge of outlet；
B4: the refrigerant gas of high temperature and pressure is discharged into surface cooling condenser 8 from the exhaust outlet of oilless (oil free) compressor 7, by it
Heat becomes normal temperature high voltage refrigerant liquid after being released to air draft, and refrigerant liquid becomes low after throttling by electric expansion valve 10
The gas-liquid mixture for forcing down temperature enters gravity force liquid-supply tank 9, and wherein gas part is on top, and liquid portion is in lower part；Low-temp low-pressure
Refrigerant liquid flow under the influence of gravity into the cold evaporator 6 of table, become gaseous refrigerant after absorbing the heat of fresh air, in liquid
Gravity force liquid-supply tank 9 is flowed back under state and the driving force of gaseous density contrast, the gaseous refrigerant at 9 top of gravity force liquid-supply tank then returns to nothing
Refrigeration cycle is completed in hydraulic shrinking machine 7.
Embodiment one under refrigeration mode:
Outdoor dry-bulb temperature is 35 DEG C, relative humidity 60%, and fresh air becomes 26 DEG C after passing through surface cooling evaporator, relative humidity
60%, due to using surface cooling evaporator, evaporating temperature may be up to 12 DEG C or so, compared with traditional chilled water cool-down dehumidification, evaporation
Temperature can promote 6 DEG C ~ 8 DEG C, improve 1 DEG C according to conventional refrigerant system evaporating temperature, COP increases by 3% to consider, refrigeration COP is promoted
18%；The temperature and humidity of air draft is 26 DEG C/60%, compared with 35 DEG C of the summer design conditions outdoor temperature of conventional air-cooled heat pump, condensation
Device condensation temperature declines 9 DEG C, declines 1 DEG C according to conventional refrigerant system condensation temperature, unit COP promotes 3% to calculate, then condenses
Temperature reduces so that refrigeration COP promotes 27%.System and method of the invention are used simultaneously, since evaporating temperature is significantly promoted,
Condensation temperature sharp fall, thus efficient oil-free centrifugal compressor can then introduce the traditional common screw compressor of substitution, machine
Group energy efficiency is improved significantly, thus comprehensively considers the system and realize 60% or more energy conservation in summer.
Embodiment two under heating mode:
Outdoor dry bulb and wet bulb is 7 DEG C/6 DEG C, and fresh air becomes 22 DEG C after passing through surface cooling condenser, due to being condensed using surface cooling
Device, condensation temperature can be down to 40 DEG C or so, compared with traditional chilled water cool-down dehumidification, and evaporating temperature can promote 6 DEG C ~ 8 DEG C, according to
Conventional refrigerant system condensation temperature declines 1 DEG C, and COP increases by 3% to consider, refrigeration COP promotes 18%；The temperature and humidity of air draft is 22
DEG C, compared with 7 DEG C of the winter design conditions outdoor temperature of conventional air-cooled heat pump, it is contemplated that relative humidity etc. influences, and evaporator steams
Hair temperature can promote 9 DEG C or so, increase 1 DEG C according to conventional refrigerant system evaporating temperature, unit COP promotes 3% to calculate, then steams
Temperature is sent out to increase so that refrigeration COP promotes 27%.System and method of the invention are used simultaneously, since evaporating temperature significantly mentions
It rises, condensation temperature sharp fall, thus efficient oil-free centrifugal compressor can then introduce the traditional common screw compressor of substitution,
The promotion of evaporating temperature simultaneously is so that entire appearance of the heating operations without frosting situation, from more having prevented on this since frosting is to being
Unite the influence generated, unit energy efficiency is improved significantly, thus comprehensively consider the system realizes in winter energy saving 70% with
On.
Embodiment three as shown in connection with fig. 4:
The change-over panel 21 is specially that telescopic corrugated plating is constituted, and the change-over panel 21 is movably installed in fillter section by bolt
Dog-ear at, be then fixedly installed with electric telescopic rod 22 at the ipsilateral other end dog-ear of fillter section, the change-over panel 21 it is another
End is then connect with electric telescopic rod 22.
Example IV:
The change-over panel 21 is specially that telescopic corrugated plating is constituted, the third fillter section 15, the 5th fillter section 18, the second mistake
The inner wall of filter section 11 and the 4th fillter section 17 is provided with sliding slot, and the cunning is diagonal setting, is provided in the sliding slot hydraulic
The top of gas bar, the hydraulic flagpole is connected with change-over panel 21.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of all fresh air air-conditioning system based on oilless (oil free) compressor, including fresh inlet (1), primary filter section (2), advanced mistake
Filter section (3), fresh-air fan (4), the first fillter section (5), surface cooling evaporator (6), oilless (oil free) compressor (7), surface cooling condenser
(8), gravity force liquid-supply fill (9), electric expansion valve (10), the second fillter section (11), the first mixing section (12), fresh air outlet (13),
Air draft entrance (14), third fillter section (15), exhaust fan (16), the 4th fillter section (17), the 5th fillter section (18), second mix
Close section (19) and wind exhausting outlet (20), it is characterised in that: the fresh inlet (1) is set to the right end of primary filter section (2), institute
State primary filter section (2), fresh-air fan (4), the first fillter section (5), oilless (oil free) compressor (7), the second fillter section (11), first mixed
Section (12) to be closed successively to connect in sequence from left to right, the front of the fresh-air fan (4) is connected with the second mixing section (19),
The left end of second mixing section (19) is successively linked in sequence the 5th fillter section (18), surface cooling condenser (8), the 4th fillter section
(17), exhaust fan (16), third fillter section (15), air draft entrance (14), the front setting row of second mixing section (19)
Wind exports (20).
2. a kind of all fresh air air-conditioning system based on oilless (oil free) compressor according to claim 1, it is characterised in that: described heavy
Power feed flow filling (9), oilless (oil free) compressor (7) and electric expansion valve (10) are all set in the top of surface cooling evaporator (6), described heavy
Power feed flow fills (9) and is connected respectively with oilless (oil free) compressor (7) and electric expansion valve (10), the oilless (oil free) compressor (7) and electronics
It is connected between expansion valve (10) by surface cooling condenser (8), the third fillter section (15), the 5th fillter section (18), the
It is provided with change-over panel (21) in two fillter sections (11) and the 4th fillter section (17), the change-over panel (21) is activity setting.
3. a kind of all fresh air air-conditioning system and its application method based on oilless (oil free) compressor, it is characterised in that: including freezing and making
The two different modes of heat.
4. a kind of all fresh air air-conditioning system and its application method based on oilless (oil free) compressor according to claim 3, special
Sign is: the refrigeration mode the following steps are included:
A1: the fresh air of high temperature and humidity enters the system by fresh inlet (1), then passes through primary filter section (2), advanced filtering
Section (3), fresh-air fan (4) are inhaled into, and by First Transition section (5) and the cold evaporator of table (8), air is reached by cool-down dehumidification to be set
Determine temperature and humidity, is then discharged out by the second changeover portion (11) and the first mixing section (12) into Administrative Area；
A2: the air draft to come from Administrative Area is sucked by the 4th fillter section (17) and exhaust fan (16), and then air draft passes through
Third changeover portion (15) and surface cooling evaporator (8), temperature of outgoing air reduce, and then pass through the 4th changeover portion (17), the second mixing
Section (19) and wind exhausting outlet (20) discharge；
A3: the refrigerant gas of high temperature and pressure is discharged into surface cooling condenser (8) from the exhaust outlet of oilless (oil free) compressor (7), will
Its heat becomes normal temperature high voltage refrigerant liquid after being released to air draft, and refrigerant liquid becomes after being throttled by electric expansion valve (10)
Enter gravity force liquid-supply tank (9) for the gas-liquid mixture of low-pressure low-temperature, wherein gas part is on top, and liquid portion is in lower part；It is low
The refrigerant liquid of warm low pressure flows under the influence of gravity into the cold evaporator of table (6), becomes gaseous state system after absorbing the heat of fresh air
Cryogen flows back to gravity force liquid-supply tank (9) under the driving force of liquid and gaseous density contrast, the gaseous state at the top of gravity force liquid-supply tank (9)
Refrigerant, which then returns to, completes refrigeration cycle in oilless (oil free) compressor (7).
5. a kind of all fresh air air-conditioning system and its application method based on oilless (oil free) compressor according to claim 3, special
Sign is: the heating mode the following steps are included:
B1: first by change-over panel (21) and change place makes fresh-air fan (4) be connected with surface cooling condenser (8), the table
Air-cooled condenser (8) is connected with the first mixing section (12) again；
B2: the fresh air of low temperature enters the system by fresh inlet (1), then passes through primary filter section (2), advanced fillter section
(3), fresh-air fan (4) is inhaled into, and then enters table cool condenser (8) section by change-over panel (12), air, which is warmed, reaches setting
Operating condition is then discharged out by the second changeover portion (11) and the first mixing section (12) into Administrative Area；
B3: the air draft to come from Administrative Area is sucked by the 4th fillter section (17) and exhaust fan (16), and then air draft passes through
Change-over panel (21) enters surface cooling evaporator (8), and temperature of outgoing air increases, and then passes through the 4th changeover portion (17), the second mixing section
(19) it is discharged with wind exhausting outlet (20)；
B4: the refrigerant gas of high temperature and pressure is discharged into surface cooling condenser (8) from the exhaust outlet of oilless (oil free) compressor (7),
Its heat, which is released to after air draft, becomes normal temperature high voltage refrigerant liquid, after refrigerant liquid is throttled by electric expansion valve (10)
The gas-liquid mixture for becoming low-pressure low-temperature enters gravity force liquid-supply tank (9), and wherein gas part is on top, and liquid portion is in lower part；
The refrigerant liquid of low-temp low-pressure flows under the influence of gravity into the cold evaporator of table (6), becomes gaseous state after absorbing the heat of fresh air
Refrigerant flows back to gravity force liquid-supply tank (9) under the driving force of liquid and gaseous density contrast, the gas at the top of gravity force liquid-supply tank (9)
State refrigerant, which then returns to, completes refrigeration cycle in oilless (oil free) compressor (7).
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| CN104995047A (en) * | 2013-03-29 | 2015-10-21 | 本田技研工业株式会社 | Air-conditioning device for vehicle |
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| CN109210654A (en) * | 2018-10-15 | 2019-01-15 | 天津商业大学 | A kind of heat pump and air-conditioning system of synchronous defrosting and refrigeration |
| CN210801435U (en) * | 2019-05-10 | 2020-06-19 | 南京工程学院 | Full fresh air conditioning system based on oil-free compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104995047A (en) * | 2013-03-29 | 2015-10-21 | 本田技研工业株式会社 | Air-conditioning device for vehicle |
| CN205505479U (en) * | 2016-01-15 | 2016-08-24 | 浙江理工大学 | Heat pump set is switched in integrative wind channel of heat recovery new trend of airing exhaust |
| CN206440039U (en) * | 2016-11-04 | 2017-08-25 | 苏州必信空调有限公司 | A kind of air-conditioning system of use gravity force liquid-supply |
| CN109210654A (en) * | 2018-10-15 | 2019-01-15 | 天津商业大学 | A kind of heat pump and air-conditioning system of synchronous defrosting and refrigeration |
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