Summary of the invention
In order to solve the above technical problems, combined the purpose of the present invention is to provide a kind of compression refrigeration with refrigeration naturally
Air-conditioning system can make full use of natural cooling source, have the characteristics that efficient, energy-saving and environmental protection and stable and reliable operation.
To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme:A kind of pressure
Contraction is cold with the air-conditioning system combined of freezing naturally, including compression refrigerating system and natural refrigeration system;
The compression refrigerating system includes that refrigerant circuit, major cycle water loop and main jet water drenching circuit, the refrigerant circuit include
Pass sequentially through compressor, condenser, expansion valve and vaporising device that pipeline is connected and is formed into a loop, the major cycle water loop packet
The first electronic shut-off valve is included, the import of the first electronic shut-off valve is connect with a chilled water water conservancy module, the first electronic shut-off valve
Outlet is connect with the circulating water intake of vaporising device, and the circulating water outlet of vaporising device is connect with air conditioning terminal system, air-conditioning end
End system is connect with the water return outlet of chilled water water conservancy module again, is arranged between the circulating water intake and circulating water outlet of vaporising device
There is the second electronic shut-off valve, the shower water that main jet water drenching circuit sprays condenses the refrigerant for entering condenser;
The natural refrigeration system includes secondary circulating water loop, secondary wind system circuit and secondary spray water loop, the pair circulating water loop
Including coil exchanger, the water outlet of chilled water water conservancy module is connect with the import of the electronic shut-off valve of a third, and third is electronic
The outlet of shut-off valve and the import of coil exchanger connect, the outlet and the import of the second electronic shut-off valve of coil exchanger
Connection, the shower water that the secondary spray water loop sprays is under the mating reaction in secondary wind system circuit to entering coil exchanger
Recirculated water cooled down.
Further, main jet water drenching circuit includes main pond, the main jet sprinkling pump connecting with the water outlet in main pond
And the main jet leaching water distributor being connect with the water outlet of main jet sprinkling pump, main jet leaching water distributor is located at the top of condenser, main
Pond is located at the lower section of condenser.
Further, the water loop of pair spray include secondary pond, with the secondary feeding spraying pump that connect of water outlet in pair pond with
And the secondary spray water distributor connecting with the water outlet of secondary feeding spraying pump, pair spray water distributor are located at the upper of coil exchanger
Side, secondary pond are located at the lower section of coil exchanger, and the top of pair spray water distributor is equipped with cooling blower.
Further, the top in the main pond is equipped with main cooling filler.
Further, the top in the secondary pond is equipped with secondary cooling filler.
Further, the side in the main pond is equipped with air draft static press device, and the top of air draft static press device is equipped with condensation
Blower, and condensation fan is located at the top of main jet leaching water distributor.
Further, finned heat exchanger is equipped between the electronic shut-off valve of third and coil exchanger.
Further, the natural refrigeration system further includes an Intermediate Heat Exchanger and a water circulating pump, the Intermediate Heat Exchanger
An import connect with the outlet of the electronic shut-off valve of third, another import and the outlet of coil exchanger connect, intermediate
The one outlet of heat exchanger is connect with the import of the second electronic shut-off valve, another outlet is connect with the import of water circulating pump, is followed
The outlet of ring water pump is connect with finned heat exchanger.
Further, the natural refrigeration system further includes an Intermediate Heat Exchanger and a water circulating pump, the Intermediate Heat Exchanger
An import connect with the water outlet of chilled water water conservancy module, another import is connect with the outlet of the second electronic shut-off valve,
The one outlet of the Intermediate Heat Exchanger is connect with air conditioning terminal system, another outlet is connect with the import of water circulating pump, circulation
The outlet of water pump is connect with the electronic shut-off valve of third.
Further, finned heat exchanger, connect with finned heat exchanger air outlet the cooling filler of pair, be located at it is secondary cooling
Coil exchanger above filler and formation secondary wind system circuit between the cooling blower above coil exchanger.
The beneficial effects of the invention are as follows:
1, the present invention can realize compression refrigeration system by the first electronic shut-off valve, the second electronic shut-off valve and the electronic shut-off valve of third
The switching of system and three kinds of refrigeration modes of natural refrigeration system is higher than air conditioning terminal system return temperature in outdoor sub- dew-point temperature
When, using compression refrigeration mode, i.e., freezed using compression refrigerating system;It is lower than air conditioning terminal system in outdoor sub- dew-point temperature
The return water temperature of system, but when being higher than the supply water temperature of air conditioning terminal system, using joint refrigeration mode, that is, utilize compression refrigeration system
System and natural refrigeration system joint refrigeration;When outdoor sub- dew-point temperature is lower than the supply water temperature of air conditioning terminal system, using exempting from
Take refrigeration mode, i.e., only freezed using natural refrigeration system, takes full advantage of external natural cooling source, reduce energy consumption.
The invention has the advantages that using the highest compression refrigerating system of Energy Efficiency Ratio and most safe and environment-friendly, energy-efficient natural refrigeration system into
Row combines, and accomplishes the configuration optimized, more direct, not only stable and reliable operation of freezing, high cooling efficiency, and realizes energy conservation
The effect of environmental protection can be by adjusting different refrigeration modes simultaneously for needing year round cooling and providing the place of technique cold water
Required cold source is provided using ambient dew point temperature as pattern switching foundation for user side;
2, natural refrigeration system can use air inlet thermal technology again in the process of running, in guarantee system temperature forever 0 degree with
On, effectively avoid equipment and the freezing risk of system;
3, for natural refrigeration system using backflow-type closed water-cooling pattern, refrigerating efficiency is higher, and cost is lower, and energy-saving effect is more
Obviously, the problem of while avoiding freezing water pollution.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
As shown in Figure 1, a kind of compression refrigeration according to the present invention is the same as the embodiment for the air-conditioning system that refrigeration combines naturally
One, which includes compression refrigerating system and natural refrigeration system.
The compression refrigerating system includes refrigerant circuit, major cycle water loop and main jet water drenching circuit.The refrigerant circuit
Compressor 1, condenser 2, expansion valve 3 and the vaporising device 4 for being connected and being formed into a loop including passing sequentially through pipeline.The major cycle
Water loop includes the first electronic shut-off valve 5, and the import of the first electronic shut-off valve 5 is connect with a chilled water water conservancy module 6, the first electricity
The outlet of dynamic shut-off valve 5 is connect with the circulating water intake of vaporising device 4, the circulating water outlet of vaporising device 4 and air conditioning terminal system
System connection, air conditioning terminal system connect with the water return outlet of chilled water water conservancy module 6 again, the circulating water intake of vaporising device 4 with follow
The second electronic shut-off valve 7 is provided between ring water out.Main jet water drenching circuit includes main pond 8, the water outlet with main pond 8
The main jet sprinkling pump 9 of mouth connection and the main jet leaching water distributor 10 connecting with the water outlet of main jet sprinkling pump 9, the main jet drench water distribution
Device 10 is located at the top of condenser 2, and main pond 8 is located at the lower section of condenser 2.The top in main pond 8 is equipped with main cooling filler 12.
The side in the main pond 8 is equipped with air draft static press device 14, and the top of air draft static press device 14 is equipped with condensation fan 13, and condenses
Blower 13 is located at the top of main jet leaching water distributor 10.The shower water that main jet water drenching circuit sprays is to the refrigerant for entering condenser 2
It is condensed.
The natural refrigeration system includes secondary circulating water loop, secondary wind system circuit and secondary spray water loop, the pair recirculated water
Circuit includes coil exchanger 15.In the present embodiment one, natural refrigeration system further includes in a finned heat exchanger 16, one
Between heat exchanger 17 and a water circulating pump 18.In the present embodiment one, water circulating pump 18, finned heat exchanger 16, coiled heat exchange
Chilled(cooling) water return (CWR), the electronic shut-off valve 11 of third, Intermediate Heat Exchanger 17, the second electronic pass are formed between device 15 and Intermediate Heat Exchanger 17
Chilled water circuit is formed between disconnected valve 7 and chilled water water conservancy module 6.I.e. the pair circulating water loop is chilled(cooling) water return (CWR).Moreover, into
The refrigerating medium for entering vaporising device 4 is chilled water.Specifically, the water outlet of chilled water water conservancy module 6 and the electronic shut-off valve 11 of third
Import connection.To be indirectly connected between the outlet of the electronic shut-off valve 11 of third and the import of coil exchanger 15, coiled
It is also to be indirectly connected between the outlet and the import of the second electronic shut-off valve 7 of heat exchanger 15.Furtherly, the electronic shut-off valve of third
11 outlet and an import of Intermediate Heat Exchanger 17(Chilled water import)Connection, the one outlet of Intermediate Heat Exchanger 17(Freezing
Water out)It is connect with the import of the second electronic shut-off valve 7, another import of Intermediate Heat Exchanger 17(Cooling water inlet)With disk
The outlet of pipe heat exchanger 15 connects, another outlet of Intermediate Heat Exchanger 17(Cooling water outlet)With the import of water circulating pump 18
Connection, the outlet of water circulating pump 18 is connect with finned heat exchanger 16.Finned heat exchanger 16 and coil exchanger 15 into
Mouth connection.Pair spray water loop include secondary pond 19, with the secondary feeding spraying pump 20 that connect of water outlet in pair pond 19 and with
The secondary spray water distributor 21 of the water outlet connection of secondary feeding spraying pump 20, pair spray water distributor 21 are located at coil exchanger 15
Top, secondary pond 19 are located at the lower section of coil exchanger 15.The top in secondary pond 19 is equipped with secondary cooling filler 22.Pair spray cloth
The top of hydrophone 21 is equipped with cooling blower 23.Finned heat exchanger 16, the pair cooling connecting with finned heat exchanger air outlet are filled out
Material 22, the coil exchanger 15 above secondary cooling filler and the cooling blower 23 above coil exchanger 15
Between form secondary wind system circuit.The shower water that pair spray water loop sprays is under the action of the moving air in secondary wind system circuit
To the recirculated water for entering coil exchanger 15(Cooling water)It is cooled down.
When outdoor sub- dew-point temperature is higher than air conditioning terminal system return temperature, compression refrigeration mode is enabled.First
Electronic shut-off valve 5 is opened, and the second electronic shut-off valve 7 and the electronic shut-off valve 11 of third are closed, and compression refrigerating system work is made naturally
Cooling system does not work, and chilled water water conservancy module 6 is that vaporising device 4 provides chilled water(Refrigerating medium).Refrigerant in vaporising device 4
The heat of absorption refrigerating water, is vaporized into the steam of low-temp low-pressure, and compressor 1 sucks refrigerant vapour, after overcompression, refrigerant
Steam becomes the steam of high temperature and pressure.The refrigerant vapour of high temperature and pressure enters condenser 2.Main jet sprinkling pump 9 will be in main pond 8
Water be pumped into main jet leaching water distributor 10 in, main jet drench water distributor 10 spray shower water.Refrigerant vapour into condenser 2 is put
Heat out, the shower water that main jet leaching water distributor 10 sprays take away heat, refrigerant vapour are condensed into the liquid of high pressure low temperature.Separately
Outside, condensation fan 13 accelerates air flowing, and the heat of refrigerant releasing can also be quickly taken away by air, improves radiating efficiency.
Become the liquid of low-pressure low-temperature, low-temp low-pressure after the throttling of expansion valve 3 by the refrigerant liquid of condensed high pressure low temperature
Refrigerant liquid enter vaporising device 4, carry out heat absorption vaporization again, so recycle, realize to the chilled water in vaporising device 4
Temperature-fall period.Chilled water after cooling is from the circulating water outlet of vaporising device 4(Chilled water outlet)Outflow, into air-conditioning
End system provides technique cold water by air conditioning terminal system or the cooling capacity of chilled water is conveyed to the space for needing to freeze.
In addition, in cyclic process, main jet drenches the shower water that water distributor 10 sprays, after condenser 2, using main cooling filler
12 it is laggard become owner of pond 8, be recycled.The main cooling filler 12 of 8 top of main pond can will carry under one's arms the shower water of waste heat with
Air carries out heat exchange, so that waste heat is transferred to air and spills into atmosphere.
When return water temperature of the outdoor sub- dew-point temperature lower than air conditioning terminal system, but higher than air conditioning terminal system for water temperature
When spending, that is, it is lower than chilled water(Refrigerating medium)When return water temperature, joint refrigeration mode is enabled.The electronic shut-off valve 11 of third is opened, the
One electronic shut-off valve 5 and the second electronic shut-off valve 7 are closed, and compression refrigerating system and natural refrigeration system work together, chilled water
Water conservancy module 6 provides chilled water for natural refrigeration system and compression refrigerating system.Chilled water by the electronic shut-off valve 11 of third into
Enter Intermediate Heat Exchanger 17.Cooling water in Intermediate Heat Exchanger 17 cools down to chilled water, from the chilled water of Intermediate Heat Exchanger 17
The chilled water of outlet outflow passes through the circulating water intake of vaporising device 4(Chilled water import)Into compression refrigerating system.Compression system
The cooling procedure again to chilled water is completed in cooling system work by refrigerant circuit and main jet water drenching circuit.From vaporising device 4
Circulating water outlet(Chilled water outlet)The chilled water of outflow enters air conditioning terminal system, provides technique by air conditioning terminal system
The cooling capacity of chilled water is conveyed to the space for needing to freeze by cold water.For the cooling chilled water for entering Intermediate Heat Exchanger 17
Cooling water is then flowed out from the cooling water outlet of Intermediate Heat Exchanger 17, and enters finned heat exchanger 16 by water circulating pump 18, cold
But after water and external cold air carry out heat exchange, coiled exchanging air device 15 is entered back into.Secondary feeding spraying pump 20 is by secondary pond 19
In water be pumped into secondary spray water distributor 21.Pair spray water distributor 21 sprays shower water, cold air of the shower water outside
After effect, cooling treatment is carried out to the cooling water in coil exchanger 15.Cooling water in coil exchanger 15 also can be with
External cold air carries out heat exchange, moreover, cooling blower 23 can accelerate the flowing of cold air again, it can be by cold air more rapidly
The heat for taking away cooling water, improve radiating efficiency.The cooling water flowed out from coil exchanger 15 passes through Intermediate Heat Exchanger 17
Cooling water inlet enter, with to enter Intermediate Heat Exchanger 17 chilled water cool down.In the worked of natural refrigeration system
Cheng Zhong, the shower water that pair spray water distributor 21 sprays are laggard using the cooling filler 22 of pair after coil exchanger 15
Enter secondary pond 19, to be recycled.The cooling filler 22 of pair of secondary 19 top of pond can will carry under one's arms the shower water and air of waste heat
Heat exchange is carried out, so that waste heat is transferred to air and spills into atmosphere.Natural refrigeration system and compression refrigerating system work together, can
To make full use of natural cooling source, the energy consumption of compression refrigerating system is reduced, relative energy-saving environmental protection is reliable for operation and efficient.
When outdoor sub- dew-point temperature is lower than the supply water temperature of air conditioning terminal system, enable free refrigeration mode, i.e., it is only sharp
Use natural refrigeration system.The electronic shut-off valve 11 of third and the second electronic shut-off valve 7 are opened, and the first electronic shut-off valve 5 is closed, natural
Refrigeration system work, compression refrigerating system provides cold without refrigeration work, chilled water water conservancy module 6 for natural refrigeration system
Freeze water.The process of refrigerastion of natural refrigeration system repeats no more.Cooled chilled water enters air-conditioning by the second electronic shut-off valve 7
End system provides technique cold water by air conditioning terminal system or the cooling capacity of chilled water is conveyed to the space for needing to freeze.
Natural refrigeration system work, compression refrigerating system do not work, and make full use of natural cooling source to freeze in winter to realize
Process, saved the energy consumption of compression refrigerating system completely, be more energy-saving and environmentally friendly.
In the process of running, when outdoor temperature is too low, the fresh air of entrance passes through finned heat exchanger to natural refrigeration system
16 can be heated, and the hot wind being heated passes through secondary wind system circuit and guarantees to keep 0 degree or more inside natural refrigeration system, to have
The icing for solving the problems, such as system and equipment of effect and antifreeze.
Fig. 2 is present invention compression refrigeration with the schematic diagram of the embodiment two for the air-conditioning system that refrigeration combines naturally.Implement
Example two and the difference of embodiment one are:The Intermediate Heat Exchanger and recirculated water being not provided in natural refrigeration system in embodiment one
Pump.The electronic shut-off valve 11 of third, finned heat exchanger 16, coil exchanger 15, the second electronic shut-off valve 7 and chilled water water conservancy
Chilled water circuit is formed between module 6.The i.e. described secondary circulation waterway is chilled water circuit.Refrigerating medium into vaporising device 4 is
Chilled water.Natural refrigeration system is directly right by the cooperation of shower water, coil exchanger 15, finned heat exchanger 16 and air
Chilled water cools down.Compression refrigerating system completes the cooling to chilled water by refrigerant circuit and main jet water drenching circuit
Journey.
Fig. 3 is present invention compression refrigeration with the schematic diagram of the embodiment three for the air-conditioning system that refrigeration combines naturally.At this
In embodiment three, the electronic shut-off valve 11 of Intermediate Heat Exchanger 17, water circulating pump 18, third, finned heat exchanger 16, coiled heat exchange
Chilled(cooling) water return (CWR) is formed between device 15 and the second electronic shut-off valve 7.Refrigerating medium into vaporising device 4 is cooling water.Specifically,
Embodiment three and the difference of embodiment one are:One import of the Intermediate Heat Exchanger 17(Chilled water import)With chilled water water conservancy
The water outlet of module 6 connects, the one outlet of the Intermediate Heat Exchanger 17(Chilled water outlet)It is connect with air conditioning terminal system, in this
Between heat exchanger 17 another import(Cooling water inlet)It is connect with the outlet of the second electronic shut-off valve 7, Intermediate Heat Exchanger 17
Another outlet(Cooling water outlet)It is connect with the import of water circulating pump 18, the outlet of water circulating pump 18 and the electronic shut-off valve of third
11 connections.Natural refrigeration system and compression refrigerating system realize the temperature-fall period to cooling water, to pass through Intermediate Heat Exchanger
17 realize the temperature-fall period to chilled water indirectly.
The present invention is different from the switching foundation that legacy system uses dry-bulb temperature and wet-bulb temperature as natural cooling source, but adopts
It is switching foundation with sub- dew-point temperature, greatly improves the utilization rate of natural cooling source, power savings advantages is obvious, run safer
Reliably.
The present invention using the highest compression refrigerating system of Energy Efficiency Ratio and most safe and environment-friendly, energy-efficient natural refrigeration system into
Row combines, and realizes three kinds of refrigeration moulds by the first electronic shut-off valve 5, the second electronic shut-off valve 7 and the electronic shut-off valve 11 of third
The configuration optimized is accomplished in the switching of formula, more direct, not only stable and reliable operation of freezing, high cooling efficiency, and realizes section
Effect that can be environmentally friendly can be by adjusting different refrigeration modes for needing year round cooling and providing the place of technique cold water
And required cold source is provided for user side using ambient dew point temperature as pattern switching foundation.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.