Phase-change heat-exchange and compression refrigeration composite cooling system
This utility model relates to refrigeration system, more particularly, it relates to one utilizes phase-change heat-exchange, and uses
Mechanical refrigeration is as supplementary composite refrigeration system.
In communication machine room and data center, the energy consumption of air conditioner in machine room occupies sizable proportion, therefore, as
What realizes the break-through point that air conditioning system energy-conservation is machine room and Constructing data center energy-saving and emission-reduction.Due in data
The heart has the feature of round-the-clock running, thus natural cooling source how round-the-clock can be utilized to realize the sky of refrigeration
Adjusting system becomes the direction of research, and the existing method utilizing natural cooling source to freeze mainly has following two
1, fresh air refrigerating, fresh air refrigerating is by, after filter screen filtration, being directly sent to communication by new for outdoor wind
Inside machine room or data center, heated air is discharged to outdoor, is circulated realization and utilizes natural cooling source
2, ethylene glycol natural cooling, ethylene glycol natural cooling is increase glycol-cooled dish in indoor set
Pipe, at the dry and cold device of outdoor arrangement, cools down ethylene glycol by dry and cold device, and the ethylene glycol after cooling down with pump handle send
Cooling coil to indoor set, it is achieved utilize the refrigeration of natural cooling source.
But both the above technical scheme still suffers from following deficiency:
Use the mode of fresh air refrigerating, outdoor air be passed directly in communication machine room or data center, although
Have passed through filter screen filtration, but the dust in air cannot filter totally completely, causes Cleanliness relatively
Difference, but also need periodically drainage screen to be safeguarded；If containing corrosivity gas such as sulfur dioxide in air
Body, will also result in a certain degree of infringement to the equipment of communication machine room or data center；Additionally, the phase of new wind
Humid control is got up relatively difficult, it is necessary on the body of wall of communication machine room or data center, open bigger leading to
Air holes, i.e. destroys the integrity of building, and brings Lou heat, cold bridge, the hidden danger such as leak simultaneously,
Relatively big plus the usual volume of Fresh air handling units, need independently installed, take indoor usable floor area etc..
Ethylene glycol natural cooling unit is integrated with glycol-cooled coil pipe in indoor units, adds sleeve
Road system, construction complexity, and indoor fan windage can be caused relatively big, power is higher, to its energy saving band
Carry out more discount；The heat exchange efficiency of ethylene glycol solution is relatively low simultaneously, and it is entered by enclosed air cooling dry cooler
Row cooling, when causing ambient temperature higher, during compressor operating, condensation temperature is higher, also improves compressor
Running power, customer investment is bigger.
Utility model content
The purpose of this utility model is to provide a kind of energy-efficient phase-change heat-exchange and compresses refrigeration Compound cooling system
To achieve these goals, this utility model takes following technical solution:
Phase-change heat-exchange and compression refrigeration composite cooling system, including: phase-change heat-exchange subsystem, compression refrigeration
System, outdoor air cycle subsystem and indoor air circulation subsystem；Described phase-change heat-exchange subsystem bag
Include heat exchange core body, drip tray and flusher, room air and outdoor air at heat exchange core body, carry out heat friendship
Changing, described flusher accepts, to described heat exchange core body spray water, described drip tray, the warp that flusher sprays
Cross the water of heat exchange core body, described drip tray and flusher by spray water pipeline communication；Described compression refrigeration
Subsystem includes that condenser, compressor and vaporizer, described condenser and vaporizer, compressor are by refrigeration
The circulation connection of agent pipeline.
As a kind of improvement of the present utility model, outdoor air cycle subsystem includes that condensation fan, outdoor go out
Air port, outdoor air inlet, described condensation fan is arranged on outdoor air circulation canal, and condensation fan works
Time, outdoor air enters from outdoor air inlet, from outdoor air outlet row after heat exchange core body and condenser
Going out, forming chamber outer air circulates.
As a kind of improvement of the present utility model, indoor air circulation subsystem includes indoor circulation blower fan, room
Inner wind outlet, indoor return air mouth, described indoor circulation blower fan is arranged on indoor air circulation passage, indoor
During circulating fan work, room air enters from indoor return air mouth, from room after heat exchange core body and vaporizer
Inner wind outlet is outwards sent, and forms indoor air circulation.
As a kind of improvement of the present utility model, described flusher includes spray line and is arranged at spray water
Water pump on pipeline, described spray line is connected with spray water pipeline and is arranged at above described heat exchange core body, spray
Spill device to be connected with outside water charging system by pipeline.
As a kind of improvement of the present utility model, described phase-change heat-exchange subsystem also includes wet film, described wet film
Being arranged on flow of outside air path before heat exchange core body, described spray line is arranged at the top of wet film, institute
State drip tray and be arranged at the lower section of wet film.
As a kind of improvement of the present utility model, described phase-change heat-exchange subsystem includes least one set drip tray
A kind of improve as of the present utility model, the quantity of described indoor circulation blower fan be one or one with
As a kind of improvement of the present utility model, the quantity of described vaporizer is one or more.
As a kind of improvement of the present utility model, the quantity of described condenser and condensation fan is one or one
As a kind of improvement of the present utility model, described compressor is frequency-changeable compressor.
As a kind of improvement of the present utility model, the condensed water that described compression refrigeration subsystem produces passes through pipeline
Deliver in described drip tray.
From above technical scheme, refrigeration system of the present utility model includes multiple cycle subsystem, outdoor
The air of circulation carries out heat exchange with the air of indoor circulation at heat exchange core body, and indoor air circulation belongs to
Circulation in machine room, it is ensured that the quality of room air, it is not necessary to complicated air filtering system, can be fully sharp
Use natural cooling source；When using evaporation cooling auxiliary cooling to reduce further frequency-changeable compressor mechanical refrigeration operation
Between, it is achieved energy-saving run, use mechanical refrigeration can assist when high temperature and utilize merely natural cooling source to freeze
Deficiency, improves refrigeration.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment, below will be in embodiment or description of the prior art
The required accompanying drawing used does simple introduction, it should be apparent that, the accompanying drawing in describing below is only this practicality
Some novel embodiments, for those of ordinary skill in the art, before not paying creative work
Put, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of this utility model embodiment 1；
Fig. 2 is the structural representation of this utility model embodiment 2；
Fig. 3 is the structural representation of this utility model embodiment 3.
Detailed description of the invention
Describe the present invention below in conjunction with the accompanying drawings, when describing the embodiment of the present invention in detail, for ease of saying
Bright, represent that the accompanying drawing of device architecture can be disobeyed general ratio and be done partial enlargement, and described schematic diagram simply shows
Example, it should not limit the scope of protection of the invention at this.It should be noted that accompanying drawing uses the form simplified
And all use non-ratio accurately, only in order to facilitate, clearly to aid in illustrating the purpose of the embodiment of the present invention.
As it is shown in figure 1, phase-change heat-exchange of the present utility model and compression refrigeration composite cooling system include drip tray
1, water pump 2, spray line 3, condenser 4, condensation fan 5, compressor 6, electric expansion valve 7, indoor
Circulating fan 8, vaporizer 9 and heat exchange core body 10.In Fig. 1, direction shown in dotted arrow is evaporation cooling water
Loop direction, direction shown in solid arrow is refrigerant cycle direction.Refrigeration system of the present utility model includes
4 cycle subsystem, respectively: phase-change heat-exchange subsystem, compression refrigeration subsystem, outdoor air circulation
Subsystem and indoor air circulation subsystem.
The phase-change heat-exchange subsystem of the present embodiment includes drip tray 1, water pump 2, spray line 3, heat exchange core body
10 and connection drip tray and the pipeline of spray line.Wherein, spray line 3 is arranged on heat exchange core body 10
Side, drip tray 1 is for accepting the cooling water that spray line sprays, by spray between drip tray 1 and spray line 3
Watering pipeline communication, spray water pipeline is provided with water pump 2, and the water in drip tray 1 is carried by water pump 2
In spray line 3, then it is sprayed onto on outdoor air by spray line 3, outdoor air is lowered the temperature, finally falls
Enter in drip tray 1, use the mode spraying Phase cooling to carry out heat exchange, circulate with this.Outdoor air is through cold
But water flow to heat exchange core body after spraying cooling and room air carries out heat exchange.Spray line and be arranged at sprinkling
Water pump composition flusher on waterpipe, flusher is connected with outside water charging system by pipeline simultaneously,
Fed by outside water charging system after water evaporates consumption.Heat exchange core body of the present utility model uses
Product sold on market.Spray line is arranged at above heat exchange core body, and spray effect is best, but spray line is also
Heat exchange core body side can be arranged at according to space requirement.
Compression refrigeration subsystem includes condenser 4, compressor 6, vaporizer 9 and circulation connection condenser
4, vaporizer 9, the refrigerant tubing of compressor 6, refrigerant tubing is additionally provided with electric expansion valve 7.
Cold-producing medium circulates between condenser 4 and vaporizer 9 through refrigerant tubing under the driving of compressor 6.Steam
Send out device 9 and be arranged at heat exchange core body 10 side.Further, the condensed water that compression kind of refrigeration cycle produces can be used
In phase-change heat-exchange subsystem, by condensate drain pan (not shown) by pipeline and phase-change heat-exchange subsystem
Drip tray 1 be connected, make condensed water can deliver in drip tray 1.
Outdoor air circulation is realized by condensation fan 5, and when condensation fan 5 works, outdoor air enters from outdoor
Air port enters, and discharges from outdoor air outlet after heat exchange core body 10.
Indoor air circulation is realized by indoor circulation blower fan 8, when indoor circulation blower fan 8 works, and room air
Enter from indoor return air mouth, and outwards send from indoor air outlet after heat exchange core body 10.
The parts producing power consumption in phase-change heat-exchange of the present utility model and compression refrigeration composite cooling system have:
Water pump 2, condensation fan 5, compressor 6, indoor circulation blower fan 8, wherein energy consumption of compressor is maximum, thus
The operation time reducing compressor is the key point that native system realizes energy conservation object.The fortune of aforementioned energy-consuming parts
The row time is as follows: condensation fan 5 and indoor circulation blower fan 8 round-the-clock running, and water pump 2 is high in outdoor temperature
Run when preset value, when still refrigeration demand can not be met after outdoor air is cooled down by evaporation, compression
Machine brings into operation, and carries out machinery and supplements refrigeration.
Below the operation principle of this utility model refrigeration system is illustrated:
As outdoor temperature T≤preset temperature T0, condensation fan 5 and indoor circulation blower fan 8 work, and open
Outdoor, indoor air circulation, the outdoor air of circulation enters at heat exchange core body 10 with the air of indoor circulation
Row full sensible heat amount exchange, it is achieved the control of computer room temperature.
When outdoor temperature T within the specific limits: during T0≤T≤T1, condensation fan 5, indoor circulation blower fan 8
And water pump 2 works, the circulation of opening chamber outer air, indoor air circulation and cooling water circulation, spray line 3 leaves
Beginning to spray cooling water, outdoor air reduces dry-bulb temperature by cooling evaporation of water, the air after cooling and
The air of indoor circulation carries out the exchange of full sensible heat amount at heat exchange core body 10, and unevaporated cooling Water Sproading is extremely
Drip tray 1, reuses.
As outdoor temperature T >=T1, condensation fan 5, indoor circulation blower fan 8, water pump 2 and compressor 6
All work, opening chamber's outer air circulation, indoor air circulation, cooling water circulation and refrigerant cycle, spray
Pipe 3 starts to spray cooling water, and outdoor air after cooling and the air of indoor circulation are at heat exchange core body 10
After carrying out the exchange of full sensible heat amount, continue the cold-producing medium in condenser 4 is cooled down, unevaporated cooling water
Being recycled to drip tray 1, room air carries out heat exchange at heat exchange core body 10, by outdoor air tape loop
After walking a part of heat, at vaporizer 9, further carry out heat exchange with cold-producing medium.Go out in described above
Existing preset temperature T0, T1 is to be calculated state of temperature node, environment, space according to ambient temperature and humidity
During condition change, preset temperature also can respective change.
As in figure 2 it is shown, the present embodiment place different from embodiment 1 is: heat exchange core body 10 has two
Individual, phase-change heat-exchange subsystem includes two groups of drip trays 1, water pump 2 and spray line 3, each group of water receiving
The connected mode of dish, water pump and spray line is the most same as in Example 1.Condenser 4 in compression refrigeration subsystem
And condensation fan 5 is two, condensation fan 5 is correspondingly arranged with condenser 4, and compressor 6 uses frequency conversion
Compressor.Compressor 6 provides refrigerant cycle, indoor air circulation for two groups of condensers and one group of vaporizer
Realized by an indoor circulation blower fan.Outdoor air carries out heat friendship when heat exchange core body 10 with room air
Changing, then discharge from outdoor air outlet, the room air after cooling is outwards sent from indoor air outlet.
As it is shown on figure 3, the present embodiment place different from embodiment 2 is: in compression refrigeration subsystem
Vaporizer 9 is two, and indoor circulation blower fan 8 is correspondingly arranged with the quantity of vaporizer 9, and condensation fan 5 sets
It is placed at outdoor air outlet.Compressor 6 provides refrigerant cycle, room for two groups of vaporizers and one group of condenser
The circulation of interior air is realized by 2 indoor circulation blower fans.Outdoor air is when heat exchange core body 10 and Interior Space
Gas carries out heat exchange, then discharges from outdoor air outlet, and the room air after cooling is outside from indoor air outlet
Additionally, phase-change heat-exchange subsystem of the present utility model can also be wet film evaporative cooling system, use wet
During film evaporation cooling, phase-change heat-exchange subsystem also includes that wet film, described wet film are arranged at flow of outside air path
On footpath before heat exchange core body, i.e. wet film is arranged at heat exchange core body upstream, can be located at above heat exchange core body or front
Side, air first passes through wet film again through heat exchange core body, and spray line is arranged at the top of wet film, and drip tray is arranged
In the lower section of wet film, being directly sprayed onto on wet film by the water in drip tray, air can change through wet film
Heat, thus reduce temperature.
Phase-change heat-exchange subsystem of the present utility model has two kinds of forms, and a kind of outdoor air is by heat exchange core body
Outside first spraying cooling water is lowered the temperature, and then indoor-outdoor air carries out heat exchange by heat exchange core body again, this
Time only have one equipment of heat exchange core body；Another kind is outdoor air moistening and lowering temperature at wet film, the most again with room
Interior air carries out heat exchange by heat exchanging core, now has wet film and two equipment of heat exchanging core.
Refrigeration system of the present utility model can be applicable to northern area, round-the-clock employing natural cooling source, both avoided
The harmful substance impacts on calculator room equipment such as dust in new wind, sulfide, decrease again machine cold
Input, greatly reduce machine room operating cost.Such as in Beijing area, annual fractional energy savings can be up to
40%, the machine cold supplementing refrigeration only accounts for the 35%～60% of whole refrigerating capacity, has been greatly reduced the initial stage
Compared with prior art, room air and the outdoor air of this utility model refrigeration system passes through heat exchange core
Body carries out heat exchange, and inner air and outer air is isolated, it is ensured that air quality in data center；Cooling water can be used auxiliary
Refrigeration, cooling water is helped to be sprayed directly on outdoor air, it is achieved evaporation cooling, the room within heat exchanging core body
Inner circulating air is lowered the temperature, and unevaporated water flows into drip tray, repeats to participate in circulation, saves water source；Adopt
With frequency conversion press as supplementary refrigeration, realize energy-saving and emission-reduction further.
In this specification, various piece uses the mode gone forward one by one to describe, and what each some importance illustrated is and it
The difference of its part, between various piece, same or similar part sees mutually.These parts
Between syntagmatic be not only the form disclosed in embodiment, state in the disclosed embodiments
Bright, make professional and technical personnel in the field be capable of or use this utility model.Multiple to these embodiments
Amendment will be apparent from for those skilled in the art, generic principles defined herein
Can realize in other embodiments in the case of without departing from spirit or scope of the present utility model.Cause
This, this utility model is not intended to be limited to embodiment illustrated herein, and is to fit to disclosed herein
Principle and the consistent widest range of features of novelty.