CN103900184B - Three control air-conditioning system of cool water media - Google Patents
Three control air-conditioning system of cool water media Download PDFInfo
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Abstract
Three control air-conditioning system of cool water media is by refrigeration system, air conditioning terminal, cold water pipe, hot-water line, mixed water pipe, water circulating pump, water circulatory mediator composition, refrigeration system passes through cold water pipe, hot-water line, mixed water pipe, air conditioning water and hot water are transported to air conditioning terminal simultaneously, it can freeze simultaneously, it heats simultaneously, freeze simultaneously and heats, it is able to satisfy the demand of the different air conditioning conditions of different air conditioning areas, energy is recycled, energy-saving effect is significant, due to using common steel tube, device Host and control system are relatively simple, it is more reliable for operation than full direct-expansion type multi-online air-conditioning system, it is cheap.
Description
Technical field
The invention belongs to air conditioner refrigerating fields, and in particular to a kind of using water as three control air-conditioning systems of refrigerant.
Background technique
Full direct-expansion type multi-online air-conditioning system does not need water pump conveying using refrigerant as heat transfer medium, and operating cost is low, section
The about energy is used widely at present.Especially three-pipe heating reclaiming type multi-connected machine can freeze simultaneously, heat, and can expire simultaneously
The demand of the different air conditioning conditions of foot difference air conditioning area, energy are recycled, and energy conservation is extremely significant.But multi-gang air-conditioner
System is also easy to produce leakage of refrigerant, very strict to welding installation requirement, has strictly to pipeline length and building height difference
Limitation, since tubing uses copper pipe, device manufacturing process is accurate, and control system is complicated, and this air-conditioning system cost is high.
Summary of the invention
The purpose of the present invention is to provide a kind of using water as three control air-conditioning systems of heat transfer medium, passes through three water supplying pipes
Air conditioning water and hot water are transported to air conditioning terminal simultaneously, can freeze simultaneously, heat, can meet different air-conditionings simultaneously by road
The demand of the different air conditioning conditions in region, energy are recycled, and can equally reach energy-efficient effect, due to using ordinary steel
Pipe, device Host and control system are relatively simple, cheap.
Solution of the invention is: three control air-conditioning system of cool water media be by refrigeration system, air conditioning terminal, cold water pipe,
Hot-water line, mixed water pipe, water circulating pump, water circulatory mediator, power distribution control system composition, refrigeration system by cold water pipe, hot-water line,
Air conditioning water and hot water are transported to air conditioning terminal by mixed water pipe simultaneously.Refrigeration system is voltage compressing refrigeration system, it is by pressing
Contracting machine, air cooled condenser, water cooled condenser, expansion throttling device, water-cooled evaporator, auxiliary device, refrigerant circulation pipe,
The composition such as refrigerant, they are linked in sequence into cooling cycle system.Air cooled condenser connects high temperature and pressure or low-temp low-pressure system
Cryogen is radiated or is absorbed heat into air by air and refrigerant heat exchange, and when cooling in summer is main, it is dissipated into air
Heat, when winter heating is main, it is converted into evaporator, absorbs heat from air；Water cooled condenser connects high temperature and pressure refrigeration
Agent and air-conditioner circulating water, water inlet connect mixed water pipe, and water outlet connects hot-water line, and high-temperature high-pressure refrigerant is the air-conditioning from mixed water pipe
Circulating water heating is sent into hot-water line at 40 DEG C or more of high-temperature-hot-water；Water-cooled evaporator connects low-temperature low-pressure refrigerant and sky
Recirculated water is adjusted, water inlet connects mixed water pipe, and water outlet connects cold water pipe, low-temperature low-pressure refrigerant evaporation endothermic, from mixed water pipe
Air-conditioner circulating water is cooled to 7 DEG C of low temperature chilled water, is sent into cold water pipe；Room conditioning end (such as: fan coil, Fresh air handling units)
It is connected with cold water pipe, hot-water line, mixed water pipe, water inlet connects cold water pipe, hot-water line, and is controlled by valve, and water return outlet connects mixed water
Pipe opens cold valves, air conditioning water enters air conditioning terminal from cold water pipe, when needing to send hot wind, beats when needing to send cold wind
Hot water valve is opened, air conditioning hot enters air conditioning terminal from hot-water line, by with after air heat exchange, air conditioning water becomes from 7 DEG C
12 DEG C, hot water becomes 35 DEG C from 40 DEG C, is then refluxed for mixed water pipe；The return water of all air conditioning terminals is all flowed to mixed water pipe
On, after mixing, water temperature becomes 20 DEG C or so of normal-temperature water, is re-fed into water cooled condenser by water circulating pump and water-cooled is evaporated
In device；To achieve the above object, water cooled condenser and water-cooled evaporator use big temperature difference heat exchanger.Therefore, air conditioning terminal
Three kinds of air conditioning conditions may be implemented: while freezing while heating while freezing and heating, with direct-expansion type three-pipe heating reclaiming type
The function of multi-connected machine is identical.Due to using water to make circulatory mediator, tubing uses common steel tube, reduces cost.
Detailed description of the invention
Fig. 1 is a kind of three control air-conditioning system figure of cool water media
Fig. 2 is a kind of double three control air-conditioning system figures of water-cooled evaporator series cool water media of same machine
Fig. 3 is a kind of double three control air-conditioning system figures of water-cooled evaporator parallel connection cool water media of same machine
Fig. 4 is a kind of three control air-conditioning system figure of two-shipper water-cooled evaporator series cool water media
Fig. 5 is a kind of three control air-conditioning system figure of cool water media using cooling tower
Fig. 6 is a kind of three control air-conditioning system figure of cool water media using geomantic omen composite cooling tower
Description of symbols:
1, compressor, 2, oil eliminator, 3, oil return capillary, 4,9,34,35,36,37, solenoid valve, 5,6,10,15,16,
19,25,27,28,29,30,40,41,60, electric control valve, 7,47, water cooled condenser, 8, air cooled condenser, 11, storage
Liquid device, 12, device for drying and filtering, 13, show liquid mirror, 14,42,44, expansion throttling device, 17,38,39,43,45,46, water-cooled evaporation
Device, 18, gas-liquid separator, 20,48,58, water circulating pump, 21, expander, 22, mixed water pipe, 23, cold water pipe, 24, hot-water line,
26, water heater, 31, surface air cooler, 32, reheater, 33, fan coil, 49, open type cooling tower, 50, catch basin, 51, regeneration
Slot, 52, heater, 53, air hose, 54, heat exchanger, 55, exhaust blower, 56, geomantic omen composite cooling tower, 57, cooling coil, 59, mixed
Water pot
Specific implementation method
Fig. 1 is a kind of three control air-conditioning system figure of cool water media, it be by refrigeration system, air conditioning terminal (26,31,32,33),
The air conditioner water circulating system of the compositions such as cold water pipe 23, hot-water line 24, mixed water pipe 22, water circulating pump 20, water circulatory mediator.Refrigeration system
System is by compressor 1, water cooled condenser 7, air cooled condenser 8, expansion throttling device 14, water-cooled evaporator 17, auxiliary dress
Set, the composition such as refrigerant circulation pipe, refrigerant, they are linked in sequence into cooling cycle system, water cooled condenser 7 with it is air-cooled
Condenser 8 is parallel relationship.When cooling in summer is main, refrigerant circulating process is: then 1 → oil eliminator of compressor 2 divides
Two-way, all the way → 5 → air cooled condenser of electric control valve, 8 → solenoid valve 9, another way → 6 → water cooling cold of electric control valve
Condenser 7, two-way converge herein → 11 → device for drying and filtering of liquid storage device 12 → shows liquid mirror 13 → expansion throttling, 14 → motorized adjustment of device
18 → compressor of valve 15 → water-cooled, 17 → gas-liquid separator of evaporator 1, at this point, solenoid valve 4, electric control valve 10 are closed, water
Air-cooled condenser 7 heats air conditioning hot using high-temperature high-pressure refrigerant condensation heat, and air cooled condenser 8 is extra high temperature and pressure
Refrigerant condensation heat is discharged in air, low-temperature low-pressure refrigerant evaporation endothermic in water-cooled evaporator 17, provides air-conditioning freezing
Water.When winter heating is main, air cooled condenser 8 is converted into evaporator, and solenoid valve 4, electric control valve 10 are opened, solenoid valve
9, electric control valve 5 is closed, and refrigerant circulating process is: compressor 1 → oil eliminator, 2 → electric control valve, 6 → water cooling cold
7 → liquid storage device of condenser, 11 → device for drying and filtering 12 → show liquid 13 → expansion throttling of mirror device 14, then divides two-way, all the way → electric adjustable
10 → air cooled condenser of valve, 8 → solenoid valve 4 is saved, another way → 15 → water-cooled of electric control valve evaporator 17, two-way is herein
Converge → 18 → compressor of gas-liquid separator 1, in this cyclic process, low-temperature low-pressure refrigerant is in 17 He of water-cooled evaporator
Evaporation endothermic in air cooled condenser 8.
When refrigeration system needs to discharge refrigerant condensation heat into air, discharged by air cooled condenser 8；Work as refrigeration
When system needs absorb heat from air, air cooled condenser 8 is converted into evaporator, and low-temperature low-pressure refrigerant evaporates suction wherein
Heat.No matter water cooled condenser 7 utilizes high-temperature high-pressure refrigerant heat hot water always in summer, winter or transition season,
40 DEG C or more of air conditioning hot is provided, water-cooled evaporator 17 utilizes low-temperature low-pressure refrigerant evaporation endothermic always, provides 7 DEG C
Air conditioning water, the two are connected in parallel in air conditioner water circulating system, by controlling electric control valve 16,19, reconcile the stream of recirculated water
Amount, refrigerant and recirculated water are remained unchanged in flow direction wherein, and the refrigerant flow direction of only air cooled condenser 8 is changed
Become, system is simple, and heat exchanger can keep higher heat exchange efficiency, and water cooled condenser 7 and water-cooled evaporator 17 use shell
The heat exchanger of the forms such as tubular type, board-like, air cooled condenser 8 use the heat exchanger of the forms such as direct-expansion type comb fin.
Refrigeration system is by cold water pipe 23, hot-water line 24, mixed water pipe 22, water circulating pump 20, water circulatory mediator air-conditioning end
End (26,31,32,33) etc. connects, and forms an air conditioner water circulating system.26 water inlet of water heater connects hot-water line 24, out
The mouth of a river connects mixed water pipe 22, it provides the lower domestic hot-water of temperature or conduct using the hot water heating tap water in hot-water line 24
The preheating of domestic hot-water.Water heater 26 is not intended to processing air, but the waste heat of refrigeration system is utilized, and provides convenience,
Can such equipment be referred to as optional equipment, its water inlet connects hot-water line 24, cold water pipe 23, and water outlet connects mixed water pipe 22, such to set
It has very much, for example, the hand drier of toilet can make heat source with the waste heat of refrigeration system；Toilet, kitchen washes
The waste heat of refrigeration system can be used to discharge with summer, winter can to recycle thermal energy therein；7 DEG C of chilled water can also be accessed
In refrigerating box, it to be used for chilled goods.Surface air cooler 31, reheater 32 are in air-conditioner set, and summer surface air cooler 31 is to air cooling-down
Both dehumidifying, reheater 32 can heat air to treated air reheating, winter, their water inlet connects hot-water line 24
With cold water pipe 23, water outlet connects mixed water pipe 22, and the adjusting of change working and air-conditioning parameter is carried out by electric control valve.Fan unit
The water inlet of pipe 33 connects hot-water line 24 and cold water pipe 23, and water outlet connects mixed water pipe 22, to room air cool-down dehumidification or heating.
Hot and cold water from air conditioning terminal come out after, be pooled in mixed water pipe 22, after mixing the temperature of water about at 20 DEG C or so, it
It is fluctuated with the variation of air-conditioning system cooling and heating load.When the refrigeration duty that summer needs is greater than thermic load, water cooled condenser 7
Supply water temperature be 40 DEG C, the supply water temperature of water-cooled evaporator 17 is 7 DEG C, and the return water temperature of water heater 26 is 30 DEG C, and table is cold
The return water temperature of device 31 is 12 DEG C, by reducing the inflow of reheater 32, expands disengaging water temperature difference, is reduced to its return water temperature
30 DEG C, the return water temperature of fan coil 33 is 12 DEG C, in this way, the water consumption of surface air cooler 31, fan coil 33 accounts for the overwhelming majority, is mixed
The temperature control of water is at 18 DEG C or so after mixing in water pipe 22, and the supply backwater temperature difference of water cooled condenser 7 is 22 DEG C, water-cooled
The supply backwater temperature difference of evaporator 17 is 11 DEG C.When the thermic load that winter needs is greater than refrigeration duty, the water supply of water cooled condenser 7
Temperature is 50 DEG C, and the supply water temperature of water-cooled evaporator 17 is 15 DEG C, and the return water temperature of water heater 26 is 35 DEG C, for heating
Surface air cooler 31, fan coil 33 return water temperature be 45 DEG C, the return water temperature of the fan coil 33 for refrigeration is 20 DEG C, mixes water
The temperature control of water is at 35 DEG C or so after mixing in pipe 22, and the supply backwater temperature difference of water cooled condenser 7 is 15 DEG C, and water-cooled is steamed
The supply backwater temperature difference for sending out device 17 is 20 DEG C.
It realizes big temperature difference operation, needs to increase the heat exchange area and stroke of heat exchanger, equipment manufacturing cost improves, but due to
The condensation temperature of refrigeration system reduces, evaporating temperature improves, and the operational efficiency of unit improves.The system only sets a water circulating pump
20, system investments reduce, and water circulating pump 20 uses variable frequency pump, and compressor 1 uses variable conpacitance compressor, in automatic control system
It is accurate control under, according to the variation of cooling and heating load, variable-flow efficient operation.The system is recycled using water, and the length of pipeline is built
It is more much larger than full direct-expansion type multi-connected machine to build height difference and power system capacity, applicability, reliability are stronger.It, can when unit capacity is smaller
Refrigeration system and water circulating pump 20 are integrally formed, when unit capacity is larger, can be provided separately.The host of the system
It can be placed on roof, reduce and use room area, but for the area of freezed in winter, should prevent water cooling heat exchanger from freezing.
Three control air-conditioning system of cool water media is suitable for the simultaneous air-conditioning system of cooling and heating load, as: having rushton turbine
Office building, bathing occasion.
In Fig. 2, water cooled condenser 7 is connect on the gas outlet of compressor 1, preferential to guarantee to provide high-temperature-hot-water, water-cooled
Condenser 7 and air cooled condenser are series relationships, to realize big temperature difference operation, if water-cooled evaporator 38,39, the two series connection
In refrigeration system and air conditioner water circulating system, by the cooling heat exchange of double evaporation-cooling, the mixed water of higher temperature is cooled to 7 DEG C
Chilled water.When cooling in summer is main, refrigerant circulating process is: 1 → oil eliminator of compressor, 2 → water cooled condenser 7
→ 11 → device for drying and filtering of solenoid valve 36 → air cooled condenser, 8 → solenoid valve, 9 → liquid storage device 12 → shows liquid 13 → expansion joint of mirror
14 → electric control valve of device, 15 → water-cooled evaporator, 38 → water-cooled, 39 → gas-liquid separator of evaporator, 18 → compressor 1 is flowed,
At this point, solenoid valve 4,37, the closing of electric control valve 10, radiate when refrigeration system does not need air cooled condenser 8, solenoid valve 9,36
It closes, refrigerant directly passes through solenoid valve 37.When winter heating is main, air cooled condenser 8 is converted into evaporator, solenoid valve
4, electric control valve 10 is opened, and solenoid valve 9,36 is closed, and refrigerant circulating process is: compressor 1 → oil eliminator, 2 → water-cooled
11 → device for drying and filtering of condenser 7 → solenoid valve, 37 → liquid storage device 12 → show liquid 13 → expansion throttling of mirror device 14, then divides two-way,
All the way → 10 → air cooled condenser of electric control valve, 8 → solenoid valve 4, another way → electric control valve 15 → water-cooled evaporator
38 → water-cooled evaporator 39, two-way converge → 18 → compressor of gas-liquid separator 1 herein.Unlike Fig. 1, fan coil
33 water inlet pipe is equipped with electric control valve 40,41, when the two is opened simultaneously, reconciles cold and hot water, and mixed water temperature
Control guarantees that fan coil 33 is dry type cooling processing room air at 16 DEG C, with surface air cooler 31 to outdoor fresh air cool-down dehumidification,
To realize the independent temperature-humidity control to air.
In Fig. 3, water-cooled evaporator 43 is in parallel with water-cooled evaporator 45 in refrigeration systems, is connected on air conditioner water circulation
In system, by control expansion throttling device 42,44, the evaporating temperature of wherein refrigerant is controlled, water is mixed and is cooled down by secondary cooling,
Become 7 DEG C of chilled water.
There are two sets of refrigeration systems in Fig. 4, mixed water first passes through 17 cooling of water-cooled evaporator processing, then evaporates by water-cooled
The processing of 46 reducing temperature twice of device, becomes 7 DEG C of chilled water, and water-cooled evaporator 17 and 46 is connected in air conditioner water circulating system,
And the water cooled condenser 7 of the two is to be connected in parallel in air conditioner water circulating system, two sets of refrigeration system control operations are more convenient.
Water cooled condenser 47 passes through open instead of original air cooled condenser 8, cooling in summer agent condensation heat in Fig. 5
Formula cooling tower 49(or closed cooling tower) Sprayer Circulation water is discharged into atmosphere, and winter is by open type cooling tower 49 from air
Heat absorption adds antifreezing agent to prevent circulation water freezing, freezing water cooled condenser 47 and open type cooling tower 49 in recirculated water,
Such as: ethylene glycol solution.When due to recirculated water and outdoor air heat exchange, the moisture in air will be condensed in recirculated water, make to prevent
Concentration reduction, the freezing point raising for freezing liquid, are easy to freeze, therefore constantly to add anti-icing fluid, or to circulating water heating, evaporate
Portion of water regenerates anti-icing fluid, is concentrated.Be equipped with regeneration tank 51 thus, be provided with heater 52, heating agent be electricity,
Solar energy or other high temperature heat sources, after recirculated water is heated by heater 52, portion of water is evaporated to high-temperature vapor, is arranging
Under the action of blower 55, by air hose 53, heat exchanger 54, high-temperature vapor and low-temperature circulating hydrothermal exchange recycle heat, section
It can emission reduction.High-capacity air conditioning system is suitable for using cooling tower heat exchange.
In Fig. 6, for geomantic omen composite cooling tower 56 instead of original air cooled condenser 8, it is closed cooling tower, both can be with
It is air-cooled, can also be with water cooling, refrigerant is by cooling coil 57 directly with air or spray hydrothermal exchange, and heat exchange efficiency is high, winter
To prevent circulation water freezing, antifreezing agent should be added, regenerated using regeneration tank 51.The exit of water circulating pump 20 is equipped with mixed water pot in figure
59, it is connected to bypass electric control valve 60 thereon, when water-mixing temperature is uneven, flow velocity is reduced in mixed water pot 59, and hot and cold water fills
Divide mixing, a part flows back into re-circulation in water circulating pump 20, make water-mixing temperature more evenly by electric control valve 60.
In conclusion three control air-conditioning system of cool water media can use common steel tube, structure is simple, easy for installation, operation
Reliably, it has the advantages of complete straight swollen Three-pipe heat recovery multi-connected machine, but cheap.
The above is only preferable implementing method of the invention, not does limitation in any form to the present invention.
Any simple modifications, equivalents, and modifications done according to the technical essence of the invention to the above implementing method belong to this
The protection scope of invention.
Claims (5)
1. three control air-conditioning system of cool water media, it includes refrigeration system, air conditioning terminal, cold water pipe, hot-water line, mixed water pipe, circulation
Water pump, water circulatory mediator, refrigeration system are voltage compressing refrigeration system, it includes compressor, air cooled condenser or cooling tower, water
Air-cooled condenser, expansion throttling device, water-cooled evaporator, auxiliary device, refrigerant circulation pipe, refrigerant, which is characterized in that wind
Air-cooled condenser uses direct-expansion type structure heat exchanger, it connects high-temperature high-pressure refrigerant, by air and refrigerant heat exchange, to
It radiates in air, when needing low-temperature low-pressure refrigerant evaporation endothermic, it is converted into evaporator, absorbs heat from air；Cooling tower
It is directly or indirectly connected in refrigeration system, cooling tower discharges condensation heat to outdoor air as condenser, it is converted to evaporation
When device, absorb heat from air；Water cooled condenser connects high-temperature high-pressure refrigerant and air-conditioner circulating water, water inlet connect mixed water pipe,
Water outlet connects hot-water line, and the air-conditioner circulating water from mixed water pipe is heated into high-temperature-hot-water by high-temperature high-pressure refrigerant, is sent into hot water
Pipe, provides air conditioning hot；Water-cooled evaporator connects low-temperature low-pressure refrigerant and air-conditioner circulating water, water inlet connect mixed water pipe, out
The mouth of a river connects cold water pipe, and the air-conditioner circulating water from mixed water pipe is cooled to low temperature chilled water by low-temperature low-pressure refrigerant evaporation endothermic,
It is sent into cold water pipe, air conditioning water is provided；Room conditioning end is connected with cold water pipe, hot-water line, mixed water pipe, and water inlet connects cold
Water pipe, hot-water line, and controlled by valve, water return outlet connects mixed water pipe, when needing to freeze, opens cold valves, air conditioning water from
Cold water pipe enters air conditioning terminal, when needing to heat, opens hot water valve, air conditioning hot enters air conditioning terminal, air-conditioning from hot-water line
End has while freezing while heating while freezing and heating three kinds of operating conditions, by handing over air or other heat transferring medium heat
After changing, air conditioning water heating, hot water cooling are then refluxed for mixed water pipe；The return water of all air conditioning terminals is all flowed to mixed
On water pipe, sent back in water cooled condenser and water-cooled evaporator again by water circulating pump；Water cooled condenser and water-cooled are steamed
It sends out device and uses big temperature difference heat exchanger, the two is connected in parallel in air conditioner water circulating system；When air cooled condenser or cooling tower are condensation
When device, water cooled condenser and air cooled condenser or cooling tower are arranged in parallel or in series in refrigeration system, work as air cooled condenser
Or cooling tower, when being converted to evaporator, air cooled condenser or cooling tower are in parallel with water-cooled evaporator in refrigeration systems, follow
Ring water pump is variable frequency pump, and refrigeration system is varying capacity system.
2. three control air-conditioning system of cool water media according to claim 1, which is characterized in that when there are two water-cooleds to steam for its band
When sending out device, the two serial or parallel connection in refrigeration systems, is connected in air conditioner water circulating system, and air-conditioner circulating water is secondary wherein
It cools.
3. three control air-conditioning system of cool water media according to claim 1, which is characterized in that when it has two sets of refrigeration systems
When, the water-cooled evaporator of the two is connected in air conditioner water circulating system, and secondary cooling cools down air-conditioner circulating water wherein, two
The water cooled condenser of person is connected in parallel in air conditioner water circulating system.
4. three control air-conditioning system of cool water media according to claim 1, which is characterized in that refrigeration system is opened with water circulation
Open form or sealed cooling tower, by cooling tower from air heat absorption or the heat extraction into air.
5. three control air-conditioning system of cool water media according to claim 1, which is characterized in that when it has geomantic omen Compound cooling
When tower, it is sealed cooling tower, refrigerant by cooling coil therein directly with air or spray hydrothermal exchange, from air
Middle heat absorption or the heat extraction into air.
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| DE102015016330A1 (en) * | 2015-12-17 | 2017-06-22 | Eisenmann Se | Zuluftanlage |
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| CN113203217A (en) * | 2021-06-11 | 2021-08-03 | 湖北中烟工业有限责任公司武汉卷烟厂 | Auxiliary air conditioning system and method for cigarette factory |
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