CN108775659A - A kind of multi-joint computer-room air conditioning system of heat pipe - Google Patents
A kind of multi-joint computer-room air conditioning system of heat pipe Download PDFInfo
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- CN108775659A CN108775659A CN201810653350.6A CN201810653350A CN108775659A CN 108775659 A CN108775659 A CN 108775659A CN 201810653350 A CN201810653350 A CN 201810653350A CN 108775659 A CN108775659 A CN 108775659A
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0003—Exclusively-fluid 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a kind of multi-joint computer-room air conditioning systems of heat pipe, there are three types of operational modes for the system, it is heat pipe pattern, mechanical refrigeration pattern, mechanical refrigeration and heat pipe operational mode simultaneously respectively, best operational mode is selected according to different outdoor temperature conditions, ensures the energy-efficient operation of system high efficiency.In addition, system provides cooling water using two jacket water systems difference opposite heat tube system and mechanical refrigeration system, it solves the problems, such as that a shared cooling tower causes compressor oil return difficult, makes cooling water temperature while meeting two kinds of operating modes, it is ensured that this system can maximumlly utilize natural cooling source.And the cooling tower of heat exchange of heat pipe side can directly backup for the cooling tower of handpiece Water Chilling Units side, increase the safety of system.
Description
Technical field
The invention belongs to air conditioner in machine room refrigeration technology field more particularly to a kind of multi-joint computer-room air conditioning systems of heat pipe.
Background technology
The fields such as data center of some base stations, computer room and large size at present, electronic equipment density is big, calorific value is big, to protect
The normal operation of card system, not only cooling in summer, also needs to freeze in winter.Existing cooling unit, typically with heating power
The mode of cycle inputs certain energy to carry out refrigerating operaton, such as the refrigeration system of steam compression cycle, either summer
Or winter, refrigerating operaton could be carried out by being required for consuming more electric energy.However for the northern area of China, winter and
Temperature in the transition season most of the time in spring and autumn is relatively low, and even in this case, still starting the compressor of highly energy-consuming is
Not energy-efficient, the unnecessary waste of electric energy can be caused.
Therefore, using natural cooling technology, freezed using the natural cold source of the Nature, greatly reduce traditional heat
The a large amount of energy that power circularly cooling mode is consumed, to achieve the purpose that energy-saving to have become a kind of trend.Patent
201710223050X《A kind of cooling unit with auxiliary cold source》In increase one group and followed using the natural cooling of low-temperature cooling water
Loop back path, to realize the purpose for making full use of natural cooling source.It could start when cooling water temperature is relatively low in this technical solution certainly
Right refrigerating mode, but at this time mechanical refrigeration pattern can caused by condensate temperature is too low compressor oil return it is difficult, and in scheme from
Right cooling circuit and mechanical refrigeration circuit share a cooling tower, and cooling water temperature is difficult to balance in two kinds of operating modes,
It is difficult maximumlly to utilize natural cooling source.
Invention content
It is an object of the invention to overcome the above-mentioned problems of the prior art, and provide a kind of multi-joint air conditioner in machine room of heat pipe
System, the air-conditioning system is using two jacket water systems difference opposite heat tube heat exchanger and handpiece Water Chilling Units cooling water supply, it is ensured that this
System can maximumlly utilize natural cooling source, and the cooling tower of heat exchange of heat pipe side can directly be the cooling of handpiece Water Chilling Units side
Tower backups, and increases the safety of system.
The present invention solves technical problem and adopts the following technical scheme that：
A kind of multi-joint computer-room air conditioning system of heat pipe, including the first cooling tower, the second cooling tower, heat exchange of heat pipe, handpiece Water Chilling Units,
One indoor unit, the second indoor unit, the first liquid pump, the second liquid pump, third liquid pump, the first expansion valve, the second expansion valve；The cold water
Unit by water-side heat, throttle valve, medium side heat exchanger, compressor set at；The water of first cooling tower and handpiece Water Chilling Units
Side heat exchanger, which is connected, constitutes cooling water first circulation circuit；Second cooling tower is connected structure with the water side interface of heat exchange of heat pipe
At cooling water second circulation circuit；The refrigerant of the heat exchange of heat pipe refrigerant output end and handpiece Water Chilling Units medium side heat exchanger exports
End is in parallel, and parallel interface is connected with fluid reservoir, and more than refrigerant liquid level；The heat exchange of heat pipe refrigerant input terminal with it is cold
The refrigerant input terminal of water dispenser group medium side heat exchanger is in parallel, and parallel interface is defeated with the first indoor unit and the second indoor unit respectively
Outlet is connected；The input terminal of the third liquid pump is connected with fluid reservoir, and positioned at refrigerant liquid level hereinafter, its output end is respectively with the
The input terminal of one indoor unit and the second indoor unit is connected；The input terminal of the heat exchange of heat pipe water side interface is connected with the first liquid
Pump；The water-side heat input terminal of the handpiece Water Chilling Units is connected with the second liquid pump；Between first indoor unit and third liquid pump
It is in series with the first expansion valve；It is in series with the second expansion valve between second indoor unit and third liquid pump.
For this system there are three types of operational mode, respectively mechanical refrigeration pattern, natural cooling pattern and mechanical refrigeration-is naturally cold
But simultaneously operational mode.
When system isolated operation mechanical refrigeration pattern, compressor, the second liquid pump and third liquid pump are opened, and the first liquid pump closes
It closes；When system isolated operation natural cooling pattern, compressor and the second liquid pump are closed, and the first liquid pump and third liquid pump are opened；
When system runs mechanical refrigeration pattern and natural cooling pattern simultaneously, the first liquid pump, the second liquid pump, third liquid pump and compressor
It opens simultaneously.
Further, the first liquid pump, the second liquid pump are water pump, and third liquid pump is refrigerant pump.
Further, the cooling water output end of the first cooling tower is connected with the first valve, and cooling water input terminal is connected with
Two valves；The cooling water output end of second cooling tower is connected with third valve, and cooling water input terminal is connected with the 4th valve；Second
Be connected by the first switching pipeline between the input terminal of valve and the output end of the 4th valve, first switches and be in series with the on pipeline
Five valves；It is connected by the second switching pipeline between the input terminal of the third valve and the output end of the first valve, second cuts
It changes on pipeline and is in series with the 6th valve.
Further, the first valve, the second valve, third valve, the 4th valve, the 5th valve and the 6th valve are electricity
Dynamic two-port valve.
Further, the first valve, the second valve, third valve and the 4th valve are normally opened valve, the 5th valve
It is normal closed gate with the 6th valve.
Further, the first cooling tower failure, when the second cooling tower need to be used to backup for the first cooling tower, the first valve
Door, the second valve, third valve and the cut-off of the 4th valve, the 5th valve and the conducting of the 6th valve, the second cooling tower is cold at this time
Water dispenser group provides cooling water, and system uses mechanical refrigeration pattern, heat exchange of heat pipe not to work temporarily.
Further, the first cooling tower is identical as the second cooling tower quantity, and can be a cooling tower, can also be more
A cooling tower is in parallel；
Further, when the first cooling tower and the second cooling tower are that multiple cooling tower parallel connections are backed up, it is one-to-one that cooling tower can be used
Backup switching, can also be used whole group cooling tower while backing up switching.
Further, heat exchange of heat pipe is identical as handpiece Water Chilling Units quantity, and can be a set of heat exchange of heat pipe and a set of cold
Water dispenser group can also be more set heat exchange of heat pipes and more set handpiece Water Chilling Units；
Further, indoor unit can be one or more.
The multi-joint computer-room air conditioning system of heat pipe that the present invention provides, solves natural cooling circuit well and mechanical refrigeration is returned
Road shares the problem that a cooling tower causes compressor oil return difficulty, makes cooling water temperature while meeting two kinds of operating modes, really
Insurance system can maximumlly utilize natural cooling source, and the cooling tower of heat exchange of heat pipe side can directly be the cold of handpiece Water Chilling Units side
But tower backups, and increases the safety of system.
Description of the drawings
Fig. 1 is the first embodiment of the multi-joint computer-room air conditioning system of heat pipe.
Fig. 2 is the second embodiment of the multi-joint computer-room air conditioning system of heat pipe.
Fig. 3 is the 3rd embodiment of the multi-joint computer-room air conditioning system of heat pipe.
In figure：（101）First cooling tower；（102）Second cooling tower；（103）Third cooling tower；（104）4th cooling tower；
（105）5th cooling tower；（106）6th cooling tower；（2）Heat exchange of heat pipe；（201）First heat exchange of heat pipe；（202）Second heat
Heat exchange of heat pipe；（203）Third heat exchange of heat pipe；（3）Handpiece Water Chilling Units；（301）First handpiece Water Chilling Units；（302）Second handpiece Water Chilling Units；
（303）Third handpiece Water Chilling Units；（31）Water-side heat；（32）Throttle valve；（33）Medium side heat exchanger；（34）Compressor；（401）
First cooling water pump；（402）Second cooling water pump；（403）Third cooling water pump；（404）4th cooling water pump；（405）5th
Cooling water pump；（406）6th cooling water pump；（5）Refrigerant pump；（6）Fluid reservoir；（701）First indoor unit；（702）In second Room
Machine；（703）Third indoor unit；（704）Machine in fourth ventricle；（705）5th indoor unit；（706）6th indoor unit；（801）First
Expansion valve；（802）Second expansion valve；（803）Third expansion valve；（804）4th expansion valve；（805）5th expansion valve；（806）
6th expansion valve；（901）First valve；（902）Second valve；（903）Third valve；（904）4th valve；（905）5th
Valve；（906）6th valve；（907）7th valve；（908）8th valve；（909）9th valve；（9010）Tenth valve；
（9011）11st valve；（9012）12nd valve；（9013）13rd valve；（9014）14th valve；（9015）The
15 valves；（9016）16th valve.
Specific implementation mode
It is a kind of first embodiment of the multi-joint computer-room air conditioning system of heat pipe, including the first cooling tower 101, second shown in Fig. 1
Cooling tower 102, heat exchange of heat pipe 2, handpiece Water Chilling Units 3, the first indoor unit 701, the second indoor unit 702, the first cooling water pump 401,
Second cooling water pump 402, refrigerant pump 5, the first expansion valve 801, the second expansion valve 802, the first valve 901, the second valve 902,
Third valve 903, the 4th valve 904, the 5th valve 905, the 6th valve 906.
Handpiece Water Chilling Units 3 are made of water-side heat 31, throttle valve, medium side heat exchanger 33, compressor 34；First cooling tower
101 are connected with the water-side heat 31 of handpiece Water Chilling Units 3 constitutes cooling water first circulation circuit；The cooling water of first cooling tower 101
Output end is connected with the first valve 901, and cooling water input terminal is connected with the second valve 902；The water-side heat 31 of handpiece Water Chilling Units 3
Input terminal is connected with the second cooling water pump 402.Second cooling tower 102 is connected with the water side interface of heat exchange of heat pipe 2 constitutes cooling
Water second circulation circuit；The cooling water output end of second cooling tower 102 is connected with third valve 903, the connection of cooling water input terminal
There is the 4th valve 904；The input terminal of 2 water side interface of heat exchange of heat pipe is connected with the first cooling water pump 401.Second valve 902
It is connected by the first switching pipeline between input terminal and the output end of the 4th valve 904, the 5th is in series on the first switching pipeline
Valve 905；It is connected by the second switching pipeline between the input terminal of third valve 903 and the output end of the first valve 901, second
It is in series with the 6th valve 906 on switching pipeline.First valve 901, the second valve 902, third valve 903 and the 4th valve 904
For normally opened valve, the 5th valve 905 and the 6th valve 906 are normal closed gate.
2 refrigerant output end of heat exchange of heat pipe is in parallel with the refrigerant output end of 3 medium side heat exchanger 33 of handpiece Water Chilling Units, in parallel
Interface is connected with fluid reservoir 6, and more than refrigerant liquid level；2 refrigerant input terminal of heat exchange of heat pipe is changed with 3 medium side of handpiece Water Chilling Units
The refrigerant input terminal of hot device 33 is in parallel, the parallel interface output end phase with the first indoor unit 701 and the second indoor unit 702 respectively
Even；The input terminal of refrigerant pump 5 is connected with fluid reservoir 6, and positioned at refrigerant liquid level hereinafter, its output end respectively with the first indoor unit
701 are connected with the input terminal of the second indoor unit 702；The first expansion valve 801 is in series between first indoor unit 701 and refrigerant pump 5；
The second expansion valve 802 is in series between second indoor unit 702 and refrigerant pump 5.
For this system there are three types of operational mode, respectively mechanical refrigeration pattern, natural cooling pattern and mechanical refrigeration-is naturally cold
But simultaneously operational mode.
The system isolated operation mechanical refrigeration pattern when outdoor temperature is higher, compressor 34, the second cooling water pump 402 and cold
Matchmaker's pump 5 is opened, and the first cooling water pump 401 is closed.Circulation loop there are three systems at this time, respectively indoor refrigerant circulation circuit,
3 circulation loop of handpiece Water Chilling Units and cooling water circulation loop.After refrigerant is extracted out by refrigerant pump 5 in aqueous compartments in fluid reservoir 6 respectively
It is transported to the first indoor unit 701 and the second indoor unit 702 by the first expansion valve 801 and the second expansion valve 802, liquid refrigerants is inhaled
The cooling of medium side heat exchanger 33 that gaseous state returns to handpiece Water Chilling Units 3, liquid after cooling are flashed to after receiving the heat of indoor hot environment
Refrigerant continues by the extraction of refrigerant pump 5 to be that indoor environment cools down.The liquid refrigerants of low temperature enters after throttle valve in handpiece Water Chilling Units 3
33 evaporation endothermic of medium side heat exchanger cools down for indoor refrigerant, and the gaseous coolant after heating is inhaled into compressor 34 and becomes high temperature
High pressure gas is exchanged into water-side heat 31 with cooling water heat later, is condensed into the liquid refrigerants of low temperature high temperature, then through throttling
It is returned in medium side heat exchanger 33 after valve decompression.Low-temperature cooling water flows through the first valve 901 and from 101 lower part of the first cooling tower
It is the refrigerant cooling recycled in handpiece Water Chilling Units 3, heating to enter the water-side heat 31 in handpiece Water Chilling Units 3 after two cooling water pumps 402
Cooling water afterwards, which flows through, to be returned to the first cooling tower 101 after the second valve 902 and continues to cool down.
The system isolated operation natural cooling pattern when outdoor temperature is relatively low, compressor 34 and the second cooling water pump 402 close
It closes, the first cooling water pump 401 and refrigerant pump 5 are opened.There are two circulation loop, respectively indoor refrigerant circulation circuits for system at this time
And cooling water circulation loop.Pass through the first expansion valve 801 after refrigerant is extracted out by refrigerant pump 5 in aqueous compartments in fluid reservoir 6 respectively
It is transported to the first indoor unit 701 and the second indoor unit 702 with the second expansion valve 802, hot environment in liquid refrigerants absorption chamber
Gaseous state is flashed to after heat and returns to the cooling of heat exchange of heat pipe 2, and liquid refrigerants continues by the extraction of refrigerant pump 5 to be indoor environment after cooling
Cooling.Low-temperature cooling water enters heat pipe after flowing through third valve 903 and the first cooling water pump 401 from 102 lower part of the second cooling tower
Heat exchanger 2 is that the refrigerant of indoor circulation cools down, and the cooling water after heating returns to the second cooling tower 102 after flowing through the 4th valve 904
Continue to cool down.
When system runs mechanical refrigeration pattern and natural cooling pattern simultaneously, the first cooling water pump 401, the second cooling water
Pump 402, refrigerant pump 5 and compressor 34 are opened simultaneously.The condition for running this pattern is that cooling water temperature has been less than indoor refrigerant temperature
Degree, using free natural cooling source, but the requirement of system is not achieved in the cold that heat exchange of heat pipe 2 generates again, therefore opens simultaneously
Natural cooling pattern and mechanical refrigeration pattern, remaining cold is supplied with mechanical refrigeration pattern, and energy saving utilization rate is made to reach most
Bigization.
Second cooling tower 102 is not only that the heat exchange of heat pipe 2 of natural cooling pattern provides cooling water, and it is cold to be alternatively arranged as first
But the backup of tower 101 provides cooling water for handpiece Water Chilling Units 3, no longer needs to additionally provide backup for cooling tower, not only save buying with
Installation cost, moreover it is possible to reduce floor space.When 101 failure of the first cooling tower, the second cooling tower 102 need to be used for the first cooling tower
101 when backuping, the first valve 901, the second valve 902, third valve 903 and the cut-off of the 4th valve 904, the 5th valve 905
It is connected with the 6th valve 906, compressor 34, the second cooling water pump 402 and refrigerant pump 5 are opened, and the first cooling water pump 401 is closed.
The second cooling tower 102 is that handpiece Water Chilling Units 3 provide cooling water at this time, and system uses mechanical refrigeration pattern, heat exchange of heat pipe 2 temporary not
Work, until trouble shooting switches back into original refrigerating mode again.
It is a kind of second embodiment of the multi-joint computer-room air conditioning system of heat pipe shown in Fig. 2, the present embodiment is in first embodiment
On the basis of increase cooling tower, heat exchange of heat pipe 2, handpiece Water Chilling Units 3 and indoor unit quantity, to improve refrigerating capacity.Cooling tower, heat
Heat exchange of heat pipe 2, handpiece Water Chilling Units 3 and indoor unit are cooled down for convenience of drawing with explanation, the present embodiment all by the way of respective parallel connection
Tower, heat exchange of heat pipe 2, handpiece Water Chilling Units 3 are set as three.The present embodiment includes first group of cooling tower, 1, second group of cooling tower 2, the
One heat exchange of heat pipe 201, the second heat exchange of heat pipe 202, third heat exchange of heat pipe 203, the first handpiece Water Chilling Units 301, the second cold water
Unit 302, third handpiece Water Chilling Units 303, the first indoor unit 701, the second indoor unit 702, third indoor unit 703, machine in fourth ventricle
704, the 5th indoor unit 705, the 6th indoor unit 706, the first cooling water pump 401, the second cooling water pump 402, third cooling water pump
403, the 4th cooling water pump 404, the 5th cooling water pump 405, the 6th cooling water pump 406, refrigerant pump 5, the first expansion valve 801,
Two expansion valves 802, third expansion valve 803, the 4th expansion valve 804, the 5th expansion valve 805, the 6th expansion valve 806, the first valve
901, the second valve 902, third valve 903, the 4th valve 904, the 5th valve 905, the 6th valve 906.
The method of operation of the present embodiment is identical with the first embodiment, and is all three kinds of operational modes, respectively mechanical refrigeration mould
Formula, natural cooling pattern and mechanical refrigeration-natural cooling while operational mode.
The system isolated operation mechanical refrigeration pattern when outdoor temperature is higher, the first compressor 34, the second compressor 34,
Three compressors 34, the second cooling water pump 402, the 4th cooling water pump 404, the 6th cooling water pump 406 and refrigerant pump 5 are opened, and first
Cooling water pump 401, third cooling water pump 403 and the 5th cooling water pump 405 are closed.
The system isolated operation natural cooling pattern when outdoor temperature is relatively low, the first compressor 34, the second compressor 34,
Three compressors 34, the second cooling water pump 402, the 4th cooling water pump 404, the 6th cooling water pump 406 are closed, the first cooling water pump
401, third cooling water pump 403, the 5th cooling water pump 405 and refrigerant pump 5 are opened.
When system runs mechanical refrigeration pattern and natural cooling pattern simultaneously, the first cooling water pump 401, the second cooling water
Pump 402, third cooling water pump 403, the 4th cooling water pump 404, the 5th cooling water pump 405, the 6th cooling water pump 406, refrigerant pump 5
It is opened simultaneously with the first compressor 34, the second compressor 34, third compressor 34.
When first group of 1 failure of cooling tower, when second group of cooling tower 2 need to be used to backup for first group of cooling tower 1, the first valve
The 901, second valve 902 of door, third valve 903 and the cut-off of the 4th valve 904, the 5th valve 905 and the conducting of the 6th valve 906,
First compressor 34, the second compressor 34, third compressor 34, the second cooling water pump 402, the 4th cooling water pump the 404, the 6th are cold
But water pump 406 and refrigerant pump 5 are opened, and the first cooling water pump 401, third cooling water pump 403 and the 5th cooling water pump 405 are closed.
Second group of cooling tower 2 is the first handpiece Water Chilling Units 301 at this time, the second handpiece Water Chilling Units 302, third handpiece Water Chilling Units 303 provide cooling water,
System uses mechanical refrigeration pattern, three groups of heat exchange of heat pipes not to work temporarily, until trouble shooting switches back into original cooling mould again
Formula.
It is a kind of 3rd embodiment of the multi-joint computer-room air conditioning system of heat pipe shown in Fig. 3, the present embodiment is in second embodiment
On the basis of, it is switching mode when first group of cooling tower 1 backups to optimize second group of cooling tower 2.By first in the present embodiment
Cooling tower 101, third cooling tower 103, the water delivery nozzle of the 5th cooling tower 105 and water return outlet are in parallel respectively, in the first cooling tower 101
It is in series with the 7th valve 907 between 103 water delivery nozzle of water delivery nozzle and third cooling tower, in 101 water return outlet of the first cooling tower and third
It is in series with the 8th valve 908 between 103 water return outlet of cooling tower, water is sent in 103 water delivery nozzle of third cooling tower and the 5th cooling tower 105
It is in series with the 9th valve 909 between mouthful, is in series between 103 water return outlet of third cooling tower and 104 water return outlet of the 4th cooling tower
Tenth valve 9010；Second cooling tower 102, the 4th cooling tower 104, the water delivery nozzle of the 6th cooling tower 106 and water return outlet difference are simultaneously
Connection, is in series with the 13rd valve 9013, second between 102 water delivery nozzle of the second cooling tower and 104 water delivery nozzle of the 4th cooling tower
It is in series with the 14th valve 9014 between 102 water return outlet of cooling tower and 104 water return outlet of the 4th cooling tower, in the 4th cooling tower 104
It is in series with the 15th valve 9015 between 106 water delivery nozzle of water delivery nozzle and the 6th cooling tower, in 104 water return outlet of the 4th cooling tower and
It is in series with the 16th valve 9016 between six cooling towers, 106 water return outlet；Water delivery nozzle after first group of 1 parallel connection of cooling tower and second group
The 11st valve 9011 is in series between water delivery nozzle after 2 parallel connection of cooling tower, the water return outlet after first group of 1 parallel connection of cooling tower and
It is in series with the 12nd valve 9012 between water return outlet after two groups of 2 parallel connections of cooling tower.Seven to ten valve 907 ~ 9010 and the tenth
Three to 16 valves 9013 ~ 9016 are normally opened valve, and the 11st valve 9011 and the 12nd valve 9012 are normal closed gate.
When systems are functioning properly, the seven to ten valve 907 ~ 9010 and the conducting of the 13rd to 16 valves 9013 ~ 9016,
11st valve 9011 and the 12nd valve 9012 are cut-off, and first group of cooling tower 1 is that handpiece Water Chilling Units 3 provide cooling water at this time,
Second group of cooling tower 2 is that heat exchange of heat pipe 2 provides cooling water.When first group of cooling tower 1 wherein one breaks down, the 11st
Valve 9011 and the 12nd valve 9012 conducting, the 13rd valve 9013 and the 14th valve 9014 cut-off, at this time first group it is cold
But two cooling towers and the second cooling tower 102 of normal operation are that handpiece Water Chilling Units 3 provide cooling water, the 4th cooling tower 104 in tower 1
It is that heat exchange of heat pipe 2 provides cooling water with the 6th cooling tower 106.When first group of cooling tower 1 wherein two breaks down in system
When, the 11st valve 9011 and the conducting of the 12nd valve 9012, the 15th valve 9015 and the 16th valve 9016 end, at this time
A cooling tower and the second cooling tower 102, the 4th cooling tower 104 for normal operation is that handpiece Water Chilling Units 3 carry in first group of cooling tower 1
Cooling Water, the 6th cooling tower 106 are that heat exchange of heat pipe 2 provides cooling water.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of multi-joint computer-room air conditioning system of heat pipe, which is characterized in that including the first cooling tower, the second cooling tower, heat pipe heat exchanging
Device, handpiece Water Chilling Units, the first indoor unit, the second indoor unit, the first liquid pump, the second liquid pump, third liquid pump, the first expansion valve, second
Expansion valve；The handpiece Water Chilling Units by water-side heat, throttle valve, medium side heat exchanger, compressor set at；First cooling tower
It is connected with the water-side heat of handpiece Water Chilling Units and constitutes cooling water first circulation circuit；Second cooling tower and heat exchange of heat pipe
Water side interface, which is connected, constitutes cooling water second circulation circuit；The heat exchange of heat pipe refrigerant output end is changed with handpiece Water Chilling Units medium side
The refrigerant output end of hot device is in parallel, and parallel interface is connected with fluid reservoir, and more than refrigerant liquid level；The heat exchange of heat pipe
Refrigerant input terminal is in parallel with the refrigerant input terminal of handpiece Water Chilling Units medium side heat exchanger, parallel interface respectively with the first indoor unit and
The output end of second indoor unit is connected；The input terminal of the third liquid pump is connected with fluid reservoir, and positioned at refrigerant liquid level hereinafter, its
Output end is connected with the input terminal of the first indoor unit and the second indoor unit respectively；
The input terminal of the heat exchange of heat pipe water side interface is connected with the first liquid pump；The water-side heat of the handpiece Water Chilling Units inputs
End is connected with the second liquid pump；It is in series with the first expansion valve between first indoor unit and third liquid pump；Second indoor unit
The second expansion valve is in series between third liquid pump；
For this system there are three types of operational mode, respectively mechanical refrigeration pattern, natural cooling pattern and mechanical refrigeration-natural cooling is same
When operational mode；When system isolated operation mechanical refrigeration pattern, compressor, the second liquid pump and third liquid pump are opened, the first liquid
Pump is closed；When system isolated operation natural cooling pattern, compressor and the second liquid pump are closed, and the first liquid pump and third liquid pump are opened
It opens；When system runs mechanical refrigeration pattern and natural cooling pattern simultaneously, the first liquid pump, the second liquid pump, third liquid pump and pressure
Contracting machine is opened simultaneously.
2. the multi-joint computer-room air conditioning system of a kind of heat pipe according to claim 1, which is characterized in that first liquid pump,
Two liquid pumps are water pump, and third liquid pump is refrigerant pump.
3. the multi-joint computer-room air conditioning system of a kind of heat pipe according to claim 1, which is characterized in that first cooling tower
Cooling water output end is connected with the first valve, and cooling water input terminal is connected with the second valve；The cooling water of second cooling tower
Output end is connected with third valve, and cooling water input terminal is connected with the 4th valve；The input terminal and the 4th valve of second valve
It is connected by the first switching pipeline between the output end of door, the 5th valve is in series on the first switching pipeline；The third valve
Input terminal and the output end of the first valve between by second switching pipeline be connected, second switch pipeline on be in series with the 6th valve
Door.
4. the multi-joint computer-room air conditioning system of a kind of heat pipe according to claim 1 and 3, which is characterized in that the first valve, second
Valve, third valve, the 4th valve, the 5th valve and the 6th valve are electric two-way valve.
5. the multi-joint computer-room air conditioning system of a kind of heat pipe according to claim 1 and 3, which is characterized in that first valve,
Second valve, third valve and the 4th valve are normally opened valve, and the 5th valve and the 6th valve are normal closed gate.
6. the multi-joint computer-room air conditioning system of a kind of heat pipe according to claim 1 and 3, which is characterized in that the event of the first cooling tower
Barrier, when the second cooling tower need to be used to backup for the first cooling tower, the first valve, the second valve, third valve and the 4th valve
Cut-off, the 5th valve and the conducting of the 6th valve.
7. the multi-joint computer-room air conditioning system of a kind of heat pipe according to claim 1-6, which is characterized in that the first cooling tower and
Two cooling tower quantity are identical, and can be a cooling towers, can also be that multiple cooling towers are in parallel.
8. the multi-joint computer-room air conditioning system of a kind of heat pipe according to claim 1-6, which is characterized in that the first cooling tower and
When two cooling towers are that multiple cooling tower parallel connections are backed up, the one-to-one backup switching of cooling tower can be used, whole group cooling tower can also be used
Back up switching simultaneously.
9. the multi-joint computer-room air conditioning system of a kind of heat pipe according to claim 1-6, which is characterized in that heat exchange of heat pipe with it is cold
Water dispenser group quantity is identical, and can be a set of heat exchange of heat pipe and a set of handpiece Water Chilling Units, can also be more set heat exchange of heat pipes and
More set handpiece Water Chilling Units.
10. the multi-joint computer-room air conditioning system of a kind of heat pipe according to claim 1-6, which is characterized in that indoor unit can be
One or more.
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| IT202000005335A1 (en) * | 2020-03-12 | 2021-09-12 | Stulz S P A | FREE COOLING MODULE FOR TEMPERATURE MANAGEMENT SYSTEM |
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