CN105387546B - A kind of integration double source refrigeration station and refrigerating method - Google Patents
A kind of integration double source refrigeration station and refrigerating method Download PDFInfo
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- CN105387546B CN105387546B CN201510933177.1A CN201510933177A CN105387546B CN 105387546 B CN105387546 B CN 105387546B CN 201510933177 A CN201510933177 A CN 201510933177A CN 105387546 B CN105387546 B CN 105387546B
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000010354 integration Effects 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 258
- 238000001816 cooling Methods 0.000 claims abstract description 138
- 239000000498 cooling water Substances 0.000 claims abstract description 82
- 239000000945 filler Substances 0.000 claims description 37
- 238000009833 condensation Methods 0.000 claims description 29
- 230000005494 condensation Effects 0.000 claims description 29
- 239000007921 spray Substances 0.000 claims description 21
- 238000012856 packing Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 239000010802 sludge Substances 0.000 claims description 5
- 241000826860 Trapezium Species 0.000 claims description 4
- 230000001413 cellular effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012546 transfer Methods 0.000 description 10
- 238000005265 energy consumption Methods 0.000 description 8
- 239000003507 refrigerant Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 5
- 239000002826 coolant Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
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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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- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a kind of integrated double source refrigeration station and refrigerating method, integrated double source refrigeration station to include cold water main unit (1), Intermediate Heat Exchanger (10), cooling water system, chilled water system and control system；Cold water main unit is arranged between cooling water system and chilled water system；Intermediate Heat Exchanger and cold water main unit share cooling water system and the confession water return pipeline of chilled water system；Cold water main unit, Intermediate Heat Exchanger, cooling water system, chilled water system and triple valve are controlled by control system；Cooling water system includes cooling tower (3) and the cooling water pump (2) being arranged on cooling tower outlet pipeline；Chilled water system includes chilled water pump (11), level pressure expansion drum (12) and descaler (13)；Chilled water pump, level pressure expansion drum and descaler are successively set on the water supply pipe of chilled water system by water supply direction.The integration double source refrigeration station and refrigerating method are easy to implement, and energy-saving effect is notable.
Description
Technical field
The present invention relates to a kind of integrated double source refrigeration station and refrigerating method.
Background technology
As the rapid development of China's Telecommunication's cause and the continuous of communication network scale expand, the electric cost of communication enterprise
Also go up constantly.2015, integrally recover the general trend of events that improvements, information communication requirement persistently expand in Macro-economic situation
Under, with the industrial policies such as information consumption, broadband strategy, 4G comprehensively implement, ICT industry be expected to continue held stationary compared with
Fast developing state, it is contemplated that overall speedup will be more than 10%, and wherein basic telecommunication industry increases by 8% or so, and rise in value internet arena
Speedup is more than 30%, and overall market income scale is more than 1.6 trillion yuans.It is all kinds of special to ensure flourishing for the communication technology
Computer room construction is multiplied, and computer room energy consumption is constantly soaring, and power equipment can't bear the heavy load, and the situation of energy shortage has been burst,
Some areas are had to power cuts to limit consumption, have impact on the fast development of national economy, and computer room economize on electricity has become a top priority.
At present, the common power save mode of computer room is the energy consumption that air-conditioning in computer room is reduced using natural cooling source, is mainly had directly
Introduce fresh air energy-saving system, board-like isolated air heat-exchange system.It is although simple in structure to be introduced directly into fresh air formula energy conserving system, body
Product is smaller, but needs frequently to replace filter, costly, and can't ensure the requirement of the humidity in computer room；Board-like isolation
Formula air heat-exchange system is since unit heat exchange amount is smaller, therefore volume is larger, mainly applies to the larger computer room in space；And this two kinds
Mode is the former air-conditioned supplementary of computer room, it is necessary to the cooperation operation of conventional refrigeration air-conditioning.
Find out from above scheme, the utilization of natural cooling source can reduce the energy consumption of communications equipment room air-conditioning system, but need original
Air-conditioning coordinate, original air-conditioning can not be substituted completely.
In addition, there are the occasion for needing to ensure low temperature of some other high power consumptions, such as fresh-keeping warehouse, it is also desirable to new
Refrigeration system to save energy consumption.
Therefore, it is necessary to design a kind of new refrigeration station and refrigerating method.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of integrated double source refrigeration station and refrigerating method, the integration
Double source refrigeration station and refrigerating method are easy to implement, and energy-saving effect is notable.
The technical solution of invention is as follows：
A kind of integration double source refrigeration station, including cold water main unit (1), Intermediate Heat Exchanger (10), cooling water system, chilled water
System and control system；Controller and the temperature sensor being connected with controller are integrated with control system；
Cold water main unit is arranged between cooling water system and chilled water system；
The Intermediate Heat Exchanger is in parallel by triple valve with cold water main unit, and Intermediate Heat Exchanger and cold water main unit share cooling
The confession water return pipeline of water system and chilled water system；
Cold water main unit, cooling water system, chilled water system and triple valve are controlled by control system；【Intermediate Heat Exchanger
Simply a heat exchanger, the inside do not have running gear, so need not control, as long as triple valve control can switch】
Cooling water system includes cooling tower (3) and the cooling water pump (2) being arranged on cooling tower outlet pipeline；
Chilled water system includes chilled water pump (11), level pressure expansion drum (12) and descaler (13)；Chilled water pump, level pressure are swollen
Swell and descaler are successively set on the water supply pipe of chilled water system by water supply direction.
【The effect of level pressure expansion drum：1st, level pressure, when system is out of service, prevents the aqueous reflux in pipeline from impacting water pump；2、
Expansion, the gas of suction line system expansion.】
The cooling tower includes condensation fan (9), water distributor (8), spray equipment (7) and packing layer (6)；On cooling tower
Equipped with air inlet (5)；Condensation fan, water distributor, spray equipment, packing layer and air inlet are sequentially arranged from top to bottom；Water distributor
It is connected with spray equipment.
Cooling tower bottom is equipped with apparatus for eliminating sludge.
Cold water main unit is using screw cold water main unit, vortex cold water main unit；
The Intermediate Heat Exchanger is plate heat exchanger or shell and tube exchanger；
Cooling water pump uses vane type oil pump, positive displacement pump or jet pump；
Cooling tower uses open cooling tower；
Chilled water pump uses vane type oil pump, positive displacement pump or jet pump；
Level pressure expansion drum uses bellows Constant pressure tank or diaphragm type Constant pressure tank；
Descaler uses electronic scale remover.
The condensation fan (9) uses axial flow blower；
Filler in packing layer is using S ripples filler, oblique mistake filler, step Trapezium oblique wave filler, poor position formula sine wave
Filler, point ripple filler, hexagon cellular filler, two-way ripple filler or bias ripple filler.
Set temperature control point T1 and T2；And T1 ＞ T2；T1 is a certain value in 15-25 DEG C；T2 is certain in -2~2 DEG C
One value；
(1) when outdoor temperature is more than T1, cold water main unit and cooling tower are opened, cooling water is in cold water main unit and cooling at this time
Circulated between tower；【When all cooling water system changes, chilled water system is all work.】【At this time, triple valve is passed through
Set, refrigerated module and Intermediate Heat Exchanger not access system (being not involved in work)】
(2) when outdoor temperature is more than T2 and is less than or equal to T1, cold water main unit is closed, opens cooling tower and intermediate heat transfer
Device, at this time cooling water circulated between Intermediate Heat Exchanger and cooling tower；It is intermediate heat transfer using the recirculated cooling water in cooling tower
Device provides cold；Condensation fan is opened【At this time, by the setting of triple valve, access system is not (i.e. for refrigerated module and cold water main unit
It is not involved in work)】；
(3) when outdoor environment temperature is less than or equal to T2, the wind turbine of cold water main unit and cooling tower is closed, opens cooling tower
Spray equipment and Intermediate Heat Exchanger, at this time cooling water circulated between Intermediate Heat Exchanger and cooling tower, condensation fan close.【This
When, by the setting of triple valve, refrigerated module and cold water main unit not access system (being not involved in work)】
【Preferably, T1 and T2 are respectively 20 DEG C and 0 DEG C.】
The integrated double source refrigeration station further includes refrigerated module (19)；Refrigerated module passes through valve and chilled water system
Be connected for water return pipeline；Refrigerated module is controlled by control system；Refrigerated module is wind-water- to-water heat exchanger, for using outdoor
Air is the chilled water cooling in chilled water system；Wind turbine is equipped with refrigerated module【For accelerating to exchange heat】
When outdoor environment temperature is less than or equal to T3, cold water main unit and cooling tower are closed, refrigerated module is opened, at this time without cold
But water circulates；T3 is a certain temperature value in -8~-12 DEG C；【Preferred value is -10 DEG C】【At this time, by the setting of triple valve, in
Between heat exchanger and host and cooling tower not access system (being not involved in work)】
A kind of refrigerating method cold based on double source, implements refrigeration using foregoing integrated double source refrigeration station；Control method
It is as follows：
Set temperature control point T1 and T2；And T1 ＞ T2；T1 is a certain value in 15-25 DEG C；T2 is certain in -2~2 DEG C
One value；
(1) when outdoor temperature is more than T1, cold water main unit and cooling tower are opened, cooling water is in cold water main unit and cooling at this time
Circulated between tower；【At this time, by the setting of triple valve, access system (is not involved in work for refrigerated module and Intermediate Heat Exchanger
Make)】
(2) when outdoor temperature is more than T2 and is less than or equal to T1, cold water main unit is closed, opens cooling tower and intermediate heat transfer
Device, at this time cooling water circulated between Intermediate Heat Exchanger and cooling tower；It is intermediate heat transfer using the recirculated cooling water in cooling tower
Device provides cold；Condensation fan is opened【At this time, by the setting of triple valve, access system is not (i.e. for refrigerated module and cold water main unit
It is not involved in work)】；
(3) when outdoor environment temperature is less than or equal to T2, the wind turbine of cold water main unit and cooling tower is closed, opens cooling tower
Spray equipment and Intermediate Heat Exchanger, at this time cooling water circulated between Intermediate Heat Exchanger and cooling tower, condensation fan close.【This
When, by the setting of triple valve, refrigerated module and cold water main unit not access system (being not involved in work)】
【Preferably, T1 and T2 are respectively 20 DEG C and 0 DEG C.】
Integrated double source refrigeration station further includes refrigerated module (19)；Refrigerated module is returned by the confession of valve and chilled water system
Water lines are connected；Refrigerated module is controlled by control system；Refrigerated module is wind-water- to-water heat exchanger, for use outdoor air for
Chilled water cooling in chilled water system；Wind turbine is equipped with refrigerated module；
When outdoor environment temperature is less than or equal to T3, cold water main unit and cooling tower are closed, refrigerated module is opened, at this time without cold
But water circulates；T3 is a certain temperature value in -8~-12 DEG C；【Preferred value is -10 DEG C】【At this time, by the setting of triple valve, in
Between heat exchanger and host and cooling tower not access system (being not involved in work)】
It is a feature of the present invention that Intermediate Heat Exchanger and cold water main unit share cooling water and chilled water supplies water return pipeline；Institute
The cold water main unit and Intermediate Heat Exchanger stated pass through three-way valve switchover operation；The control system includes temperature sensor and control
Logic processed；Cold water main unit, Intermediate Heat Exchanger, cooling water system and the chilled water system is encapsulated in a module, only
Stay exterior connecting leg interface.
The Intermediate Heat Exchanger and cold water main unit shares cooling water and chilled water supplies water return pipeline, according to outdoor temperature humidity
Environmental parameter passes through triple valve switchover operation.
Referring to Fig. 1 -- Fig. 3, the integration double source refrigeration station include cold water main unit (1) (host of production chilled water), centre
Heat exchanger (10), cooling water system, chilled water system and related Control System.The cooling water system includes cooling water pump
(2), cooling tower (3)；The chilled water system includes chilled water pump (11), level pressure expansion drum (12), descaler (13)；It is described
Cooling tower include condensation fan (9), water distributor (8), spray equipment (7), filler (6), air inlet (5) and apparatus for eliminating sludge (4)；
The Intermediate Heat Exchanger and cold water main unit shares cooling water and chilled water supplies water return pipeline；The cold water main unit
Pass through three-way valve switchover operation with Intermediate Heat Exchanger；The control system includes temperature sensor and controller；Described
Cold water main unit, Intermediate Heat Exchanger, cooling water system and chilled water system are encapsulated in a module, only stay exterior connecting leg to connect
Mouthful.The cold water main unit (1) is using screw cold water main unit, vortex cold water main unit.The Intermediate Heat Exchanger (10) is
Plate heat exchanger or shell and tube exchanger.The Intermediate Heat Exchanger (10) and cold water main unit (1) share cooling water and chilled water
For water return pipeline, triple valve switchover operation is passed through according to outdoor temperature humidity environmental parameter.The refrigerated module (19) and centre
Heat exchanger (10), cold water main unit (1) share chilled water and supply water return pipeline.The cooling water pump (2) is using vane type oil pump, volume
Formula pumps or jet pump.The cooling tower (3) uses and begins to cool down tower.The chilled water pump (11) using vane type oil pump,
Positive displacement pump or jet pump.The level pressure expansion drum (12) is using bellows Constant pressure tank, diaphragm type Constant pressure tank.The scale removal
Instrument (13) uses electronic scale remover.The condensation fan (9) uses axial flow blower.The filler (6) using S ripples filler,
Oblique mistake filler, step Trapezium oblique wave filler, poor position formula sine wave filler, point ripple filler, hexagon cellular filler, two-way ripple are filled out
Material or bias ripple filler, filler use polyvinyl chloride (PVC) or polypropylene (PP) material.The control system is passed including temperature
Sensor and controller (such as microcontroller, DSP etc.).
The work operating mode of patent of the present invention is divided into four kinds, be respectively cold water main unit cooling condition, cooling tower cooling condition 1,
Cooling tower cooling condition 2 and refrigerated module cooling condition.
Cold water main unit cooling condition：When outdoor is without available low temperature cold source, i.e., outdoor temperature is more than 20 DEG C, using cold water
Host is the low-temperature receiver of computer room refrigeration, and the chilled water that cold water main unit produces can be directly fed in computer room, or will by coolant distributor
Cold passes to intermediary, and the heat in computer room is taken away by the circulation of chilled water or intermediary (such as freon), heat absorption
Chilled water afterwards returns to cold water main unit cooling, completes a circulation；The condensation side of cold water main unit is using cooling water cooling, cooling water
The air heat-exchange introduced after heat into cooling tower spray system and air inlet is absorbed, the temperature of cooling water is reduced, returns to cold water
Host circulates.Cold water main unit mainly includes compressor, condenser, energy saver and evaporator series composition, freon herein four
Circulation in big component, completes process of refrigerastion.Specific refrigeration principle is as follows：Using steam compression type refrigeration mode, liquid refrigerant
Heat of vaporization in evaporator in absorption refrigerating water, the refrigerant after evaporation enters condenser after being compressed in compressor, cold
High-temperature high-pressure refrigerant in condenser enters throttling arrangement after cooling water temperature, and refrigerant is changed into after being come out after energy saver
Low-temp low-pressure liquid refrigerant, into evaporator, complete kind of refrigeration cycle.
Cooling tower cooling condition 1：Outdoor low temperature cold source is used to cool down in computer room, (outdoor environment temperature during transition season
It is less than or equal to 20 DEG C more than 0 DEG C), outdoor environment temperature is relatively low, is intermediate heat transfer directly using the recirculated cooling water in cooling tower
Device provides cold, reduces the water temperature of Intermediate Heat Exchanger chilled water side, chilled water can be directly fed in computer room, or is distributed by refrigerant
Cold is passed to intermediary by device, and the heat in computer room is taken away by the circulation of chilled water or intermediary, cold after heat absorption
Freeze water and return to Intermediate Heat Exchanger cooling, complete a circulation.Cooling water enters cooling tower spray system after absorbing the heat in computer room
The air heat-exchange that system and air inlet introduce, reduces the temperature of cooling water, returns to Intermediate Heat Exchanger circulation.
Cooling tower cooling condition 2：Outdoor low temperature cold source is used to cool down in computer room, (outdoor environment temperature is less than during winter
Equal to 0 DEG C), outdoor environment temperature is relatively low, directly provides cold using the recirculated cooling water in cooling tower for Intermediate Heat Exchanger, drops
The water temperature of low Intermediate Heat Exchanger chilled water side, chilled water can be directly fed in computer room, or are transmitted cold by coolant distributor
To intermediary, the heat in computer room is taken away by the circulation of chilled water or intermediary, the chilled water after heat absorption returns to centre
Heat exchanger cools down, and completes a circulation.Cooling water enters cooling tower spray system after absorbing the heat in computer room, at this time to avoid
Excessive drop temperature condensation fan is closed, and cooling water reduces temperature by the flowing of itself, returns to Intermediate Heat Exchanger circulation.Cooling tower system
The difference of cold operating mode 1 and operating mode 2 is exactly the last word of this section, and to avoid excessive drop temperature condensation fan from closing, cooling water leads to
Crossing the flowing of itself reduces temperature, returns to Intermediate Heat Exchanger circulation.Operating mode 2 is the machine that do not blow in.
Refrigerated module cooling condition：Outdoor low temperature cold source is used to cool down in computer room, (outdoor environment temperature is less than during winter
Equal to -10 DEG C), to avoid the icing at cooling tower, cut-out cooling tower, Intermediate Heat Exchanger and cold water main unit, using refrigerated module,
That is wind-water- to-water heat exchanger, is directly cooled down for chilled water using outdoor cold air, has wind turbine in refrigerated module, chilled water can be direct
Supply in computer room, or cold is passed to by intermediary by coolant distributor, pass through chilled water or the tape loop of intermediary
The heat in computer room is walked, the chilled water after heat absorption returns to Intermediate Heat Exchanger cooling, completes a circulation.
Control logic between each operating mode is as follows：
When outdoor temperature is more than 20 DEG C, cold water main unit and cooling tower are opened, cooling water is in cold water main unit and cooling at this time
Circulated between tower；When outdoor temperature, which is more than 0 DEG C, is less than or equal to 20 DEG C, cold water main unit is closed, opens cooling tower and intermediate heat transfer
Device, at this time cooling water circulated between Intermediate Heat Exchanger and cooling tower；When outdoor environment temperature is less than or equal to 0 DEG C, close cold
The wind turbine of water host and cooling tower, opens the spray equipment and Intermediate Heat Exchanger of cooling tower, cooling water is in Intermediate Heat Exchanger at this time
Circulated between cooling tower；When outdoor environment temperature is less than or equal to -10 DEG C, cold water main unit and cooling tower are closed, opens low temperature
Module, at this time no-cooling-water circulation.
Patent of the present invention directly utilizes the natural cold quantity enriched in nature to cool down for computer room electronic equipment, which exists
It is free of discontinuities in 365 days 1 year to provide low-temperature receiver for computer room, traditional air conditioner can be substituted completely.During outdoor high temperature, use handpiece Water Chilling Units for
Computer room provides chilled water, and wherein handpiece Water Chilling Units use cooling water temperature, relative to cooling by wind can provide efficiency 30% with
On；When outdoor temperature is relatively low, directly cooled down by cooling tower or refrigerated module using natural cooling source for computer room, at this time without opening
Handpiece Water Chilling Units, substantially reduce energy consumption for cooling.Patent of the present invention increases Intermediate Heat Exchanger and low on the basis of conventional refrigeration
Warm module, makes full use of transition season and the outdoor low temperature cold source in winter, reduces the run time of cold water main unit, reduces refrigeration system
The energy consumption of system；The system can making up protective program of winter conventional refrigeration when compressor is without high-low pressure and shutting down at the same time
Problem, ensures the refrigeration capacity requirement of computer room.
Outlet side (the i.e. chilled water feed water inlet of chilled water system of chilled water system【The outlet side of chilled water pump】With backwater
Be equipped with bypass branch between mouthful, as shown in Figure 1), be serially connected with by-passing valve on bypass branch, bypass branch and Intermediate Heat Exchanger with it is cold
Freeze the connecting side parallel connection of water system, bypass branch is in parallel with the connecting side of chilled water system with cold water main unit in other words；【Or
To say, bypass branch is in parallel with refrigerated module,】Bypass valve action is notable, mainly adjusts the temperature of chilled water, if negative in computer room
Lotus is small, then partial freeze water backwater is not into handpiece Water Chilling Units, directly through by-passing valve (bypass branch) into chilled water water supply conduit.
It is the prior art to provide chilled water for chilled water system.Such as supplied water by coolant distributor, and coolant distributor from
Terminal of freezing obtains chilled water.
Beneficial effect：
Integrated the double source refrigeration station and refrigerating method of the present invention, Intermediate Heat Exchanger and cold water main unit share cooling water and cold
Freeze water and supply water return pipeline；The cold water main unit and Intermediate Heat Exchanger are based on outdoor temperature and pass through three-way valve switchover operation；
The control system includes temperature sensor and controller.Among the patent of invention increases on the basis of conventional refrigeration
Heat exchanger and refrigerated module, make full use of transition season and the outdoor low temperature cold source in winter, reduce the run time of compressor, drop
The energy consumption of low refrigeration system；The system can make up winter conventional refrigeration because of protective program when compressor is without high-low pressure at the same time
And the problem of shutting down, ensure the refrigeration capacity requirement of computer room.
Patent of the present invention compared with prior art, has significant energy-saving effect.A kind of integration double source refrigeration station profit
It is that computer room electronic equipment cools down with the natural cold quantity enriched in cold water main unit and nature, outdoor cold air not directly enters machine
Room, ensures the purity requirements in computer room；Patent of the present invention is being changed on the basis of traditional cold water main unit refrigeration system among increase
Hot device, makes full use of transition season and the outdoor low temperature cold source in winter, reduces the run time of cold water main unit, reduces refrigeration system
Energy consumption；Cold water main unit reaches the effect of condensation using cooling water system, and efficiency more than 30% is improved than traditional air cooling system；
The problem of system can making up protective program of winter conventional refrigeration when compressor is without high-low pressure and shutting down at the same time, ensures
The refrigeration capacity requirement of computer room.In addition, the integration double source refrigeration station provides low-temperature receiver for end refrigeration system in computer room, can complete generation
Run for traditional refrigeration system.
Patent of the present invention can realize the refrigeration cool-down in computer room in annual scope, and overcoming conventional refrigeration can not profit
The shortcomings that with natural cooling source, avoid fresh air system and air heat-exchange system in air conditioner energy-saving system can not annual operation lack
Point；The Shuan Leng refrigeration stations system of use, wherein cold water main unit system are used to meet cooling during outdoor high temperature in computer room, and use
Cooling water circulation takes away condensation heat extraction, improves the work efficiency of cold water main unit；Intermediate Heat Exchanger system meets outdoor low temperature opportunity
Cooling in room and energy saving, directly uses cooling tower to take away computer room by Intermediate Heat Exchanger for low-temperature receiver with excessive season in the winter time
Interior heat.
Double low-temperature receivers refer to the type of cooling of chilled water, i.e. air-source and water source, can both use the outdoor cold air in winter,
Outdoor cold water can be used again or freezes the cold water cooling of unit.
Brief description of the drawings
Fig. 1 is the exchange schematic diagram of patent of the present invention；
Fig. 2 is the cold water main unit fundamental diagram of patent of the present invention.
Fig. 3 is the cooling tower fundamental diagram of patent of the present invention.
Fig. 4 being integrated double sources refrigeration station refrigerated module fundamental diagram.
Label declaration：1- cold water main units, 2- cooling water pumps, 3- cooling towers, 4- apparatus for eliminating sludge, 5- air inlets, 6- packing layers,
7- spray equipments, 8- water distributors, 9- condensation fans, 10- Intermediate Heat Exchangers；11- chilled water pumps, 12- level pressure expansion drums, 13- are removed
Dirty instrument, 14- by-passing valves；19- refrigerated modules.
Embodiment
The present invention is described in further details below with reference to the drawings and specific embodiments：
Embodiment 1：
Such as Fig. 1-4, a kind of integration double source refrigeration station, including cold water main unit (1), Intermediate Heat Exchanger (10), cooling water system
System, chilled water system, refrigerated module (19) and control system；It is integrated with controller in control system and is connected with controller
Temperature sensor；
Refrigerated module is connected by valve with chilled water system for water return pipeline；Refrigerated module is controlled by control system；
Refrigerated module is wind-water- to-water heat exchanger, for using the air of outdoor as the chilled water cooling in chilled water system；In refrigerated module
Equipped with wind turbine【For accelerating to exchange heat】；Bypass branch is in parallel with refrigerated module；By-passing valve 14 is serially connected with bypass branch；
Cold water main unit is arranged between cooling water system and chilled water system；
The Intermediate Heat Exchanger is in parallel by triple valve with cold water main unit, and Intermediate Heat Exchanger and cold water main unit share cooling
The confession water return pipeline of water system and chilled water system；
Cold water main unit, cooling water system, chilled water system and triple valve are controlled by control system；【Intermediate Heat Exchanger
Simply a heat exchanger, the inside do not have running gear, so need not control, as long as triple valve control can switch】
Cooling water system includes cooling tower (3) and the cooling water pump (2) being arranged on cooling tower outlet pipeline；
Chilled water system includes chilled water pump (11), level pressure expansion drum (12) and descaler (13)；Chilled water pump, level pressure are swollen
Swell and descaler are successively set on the water supply pipe of chilled water system by water supply direction.
【The effect of level pressure expansion drum：1st, level pressure, when system is out of service, prevents the aqueous reflux in pipeline from impacting water pump；2、
Expansion, the gas of suction line system expansion.】
The cooling tower includes condensation fan (9), water distributor (8), spray equipment (7) and packing layer (6)；On cooling tower
Equipped with air inlet (5)；Condensation fan, water distributor, spray equipment, packing layer and air inlet are sequentially arranged from top to bottom；Water distributor
It is connected with spray equipment.
Cooling tower bottom is equipped with apparatus for eliminating sludge.
Cold water main unit is using screw cold water main unit, vortex cold water main unit；
The Intermediate Heat Exchanger is plate heat exchanger or shell and tube exchanger；
Cooling water pump uses vane type oil pump, positive displacement pump or jet pump；
Cooling tower uses open cooling tower；
Chilled water pump uses vane type oil pump, positive displacement pump or jet pump；
Level pressure expansion drum uses bellows Constant pressure tank or diaphragm type Constant pressure tank；
Descaler uses electronic scale remover.
The condensation fan (9) uses axial flow blower；
Filler in packing layer is using S ripples filler, oblique mistake filler, step Trapezium oblique wave filler, poor position formula sine wave
Filler, point ripple filler, hexagon cellular filler, two-way ripple filler or bias ripple filler.
Set temperature control point T1 and T2；T1 and T2 is respectively 20 DEG C and 0 DEG C.
(1) when outdoor temperature is more than T1, cold water main unit and cooling tower are opened, cooling water is in cold water main unit and cooling at this time
Circulated between tower；【When all cooling water system changes, chilled water system is all work.】【At this time, triple valve is passed through
Set, refrigerated module and Intermediate Heat Exchanger not access system (being not involved in work)】
(2) when outdoor temperature is more than T2 and is less than or equal to T1, cold water main unit is closed, opens cooling tower and intermediate heat transfer
Device, at this time cooling water circulated between Intermediate Heat Exchanger and cooling tower；It is intermediate heat transfer using the recirculated cooling water in cooling tower
Device provides cold；Condensation fan is opened【At this time, by the setting of triple valve, access system is not (i.e. for refrigerated module and cold water main unit
It is not involved in work)】；
(3) when outdoor environment temperature is less than or equal to T2, the wind turbine of cold water main unit and cooling tower is closed, opens cooling tower
Spray equipment and Intermediate Heat Exchanger, at this time cooling water circulated between Intermediate Heat Exchanger and cooling tower, condensation fan close.【This
When, by the setting of triple valve, refrigerated module and cold water main unit not access system (being not involved in work)】
(4) when outdoor environment temperature is less than or equal to T3, cold water main unit and cooling tower are closed, opens refrigerated module, at this time
No-cooling-water circulates；T3 is a certain temperature value in -8~-12 DEG C；【Preferred value is -10 DEG C】【At this time, setting by triple valve
Put, Intermediate Heat Exchanger and host and cooling tower not access system (being not involved in work)】
A kind of refrigerating method cold based on double source, implements refrigeration using foregoing integrated double source refrigeration station；Control method
It is as follows：
Set temperature control point T1 and T2；And T1 ＞ T2；T1 and T2 is respectively 20 DEG C and 0 DEG C.；
(1) when outdoor temperature is more than T1, cold water main unit and cooling tower are opened, cooling water is in cold water main unit and cooling at this time
Circulated between tower；【At this time, by the setting of triple valve, access system (is not involved in work for refrigerated module and Intermediate Heat Exchanger
Make)】
(2) when outdoor temperature is more than T2 and is less than or equal to T1, cold water main unit is closed, opens cooling tower and intermediate heat transfer
Device, at this time cooling water circulated between Intermediate Heat Exchanger and cooling tower；It is intermediate heat transfer using the recirculated cooling water in cooling tower
Device provides cold；Condensation fan is opened【At this time, by the setting of triple valve, access system is not (i.e. for refrigerated module and cold water main unit
It is not involved in work)】；
(3) when outdoor environment temperature is less than or equal to T2, the wind turbine of cold water main unit and cooling tower is closed, opens cooling tower
Spray equipment and Intermediate Heat Exchanger, at this time cooling water circulated between Intermediate Heat Exchanger and cooling tower, condensation fan close.【This
When, by the setting of triple valve, refrigerated module and cold water main unit not access system (being not involved in work)】
Integrated double source refrigeration station further includes refrigerated module (19)；Refrigerated module is returned by the confession of valve and chilled water system
Water lines are connected；Refrigerated module is controlled by control system；Refrigerated module is wind-water- to-water heat exchanger, for use outdoor air for
Chilled water cooling in chilled water system；Wind turbine is equipped with refrigerated module；
When outdoor environment temperature is less than or equal to T3, cold water main unit and cooling tower are closed, refrigerated module is opened, at this time without cold
But water circulates；T3 is a certain temperature value in -8~-12 DEG C；【Preferred value is -10 DEG C】【At this time, by the setting of triple valve, in
Between heat exchanger and host and cooling tower not access system (being not involved in work)】.
Claims (5)
1. a kind of integration double source refrigeration station, it is characterised in that including cold water main unit (1), Intermediate Heat Exchanger (10), refrigerated module
(19), cooling water system, chilled water system and control system；It is integrated with controller in control system and is connected with controller
Temperature sensor；
Cold water main unit is arranged between cooling water system and chilled water system；
The Intermediate Heat Exchanger is in parallel by triple valve with cold water main unit, and Intermediate Heat Exchanger and cold water main unit share cooling water system
System supplies water return pipeline with chilled water system；
Refrigerated module is connected by valve with chilled water system for water return pipeline；Refrigerated module is wind-water- to-water heat exchanger, for adopting
It is the chilled water cooling in chilled water system with outdoor air；Wind turbine is equipped with refrigerated module；
Cold water main unit, refrigerated module, cooling water system, chilled water system and triple valve are controlled by control system；
Cooling water system includes cooling tower (3) and the cooling water pump (2) being arranged on cooling tower outlet pipeline；
Chilled water system includes chilled water pump (11), level pressure expansion drum (12) and descaler (13)；Chilled water pump, level pressure expansion drum
It is successively set on descaler by water supply direction on the water supply pipe of chilled water system；The cooling tower includes condensation fan
(9), water distributor (8), spray equipment (7) and packing layer (6)；Cooling tower is equipped with air inlet (5)；Condensation fan, water distributor, spray
Shower device, packing layer and air inlet are sequentially arranged from top to bottom；Water distributor is connected with spray equipment；
Set temperature control point T1, T2 and T3；And T1 ＞ T2；T1 is a certain value in 15-25 DEG C；T2 is certain in -2~2 DEG C
One value；T3 is a certain temperature value in -8~-12 DEG C；
(1) when outdoor temperature is more than T1, cold water main unit and cooling tower are opened, at this time cooling water cold water main unit and cooling tower it
Between circulate；
(2) when outdoor temperature is more than T2 and is less than or equal to T1, cold water main unit is closed, opens cooling tower and Intermediate Heat Exchanger, this
When cooling water circulated between Intermediate Heat Exchanger and cooling tower；There is provided using the recirculated cooling water in cooling tower for Intermediate Heat Exchanger
Cold；Condensation fan is opened；
(3) when outdoor environment temperature is less than or equal to T2, the wind turbine of cold water main unit and cooling tower is closed, opens the spray of cooling tower
Device and Intermediate Heat Exchanger, at this time cooling water circulated between Intermediate Heat Exchanger and cooling tower, condensation fan close；
(4) when outdoor environment temperature is less than or equal to T3, cold water main unit and cooling tower are closed, refrigerated module is opened, at this time without cold
But water circulates.
2. integration double source refrigeration station according to claim 1, it is characterised in that cooling tower bottom is equipped with apparatus for eliminating sludge.
3. integration double source refrigeration station according to claim 1, it is characterised in that cold water main unit uses screw cold water master
Machine, vortex cold water main unit；
The Intermediate Heat Exchanger is plate heat exchanger or shell and tube exchanger；
Cooling water pump uses vane type oil pump, positive displacement pump or jet pump；
Cooling tower uses open cooling tower；
Chilled water pump uses vane type oil pump, positive displacement pump or jet pump；
Level pressure expansion drum uses bellows Constant pressure tank or diaphragm type Constant pressure tank；
Descaler uses electronic scale remover.
4. integration double source refrigeration station according to claim 1, it is characterised in that the condensation fan (9) uses axis
Flow fan；
Filler in packing layer using S ripples filler, oblique mistake filler, step Trapezium oblique wave filler, poor position formula sine wave filler,
Point ripple filler, hexagon cellular filler, two-way ripple filler or bias ripple filler.
5. a kind of refrigerating method cold based on double source, it is characterised in that double using the integration of claim 1-4 any one of them
Source refrigeration station implements refrigeration；Control method is as follows：
Set temperature control point T1 and T2；And T1 ＞ T2；T1 is a certain value in 15-25 DEG C；T2 is a certain in -2~2 DEG C
Value；
(1) when outdoor temperature is more than T1, cold water main unit and cooling tower are opened, at this time cooling water cold water main unit and cooling tower it
Between circulate；
(2) when outdoor temperature is more than T2 and is less than or equal to T1, cold water main unit is closed, opens cooling tower and Intermediate Heat Exchanger, this
When cooling water circulated between Intermediate Heat Exchanger and cooling tower；There is provided using the recirculated cooling water in cooling tower for Intermediate Heat Exchanger
Cold；Condensation fan is opened；
(3) when outdoor environment temperature is less than or equal to T2, the wind turbine of cold water main unit and cooling tower is closed, opens the spray of cooling tower
Device and Intermediate Heat Exchanger, at this time cooling water circulated between Intermediate Heat Exchanger and cooling tower, condensation fan close；
(4) when outdoor environment temperature is less than or equal to T3, cold water main unit and cooling tower are closed, refrigerated module is opened, at this time without cold
But water circulates；T3 is a certain temperature value in -8~-12 DEG C.
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| CN106051981A (en) * | 2016-07-08 | 2016-10-26 | 长沙麦融高科股份有限公司 | Refrigerating method based on double-temperature drive and double cold sources |
| CN109373701B (en) * | 2018-09-26 | 2023-12-22 | 珠海格力电器股份有限公司 | Integrated refrigeration station and heat dissipation linkage control method thereof |
| CN109163399B (en) * | 2018-10-12 | 2024-04-09 | 中国建筑股份有限公司 | Cold water system for reducing running time of host |
| CN112594809A (en) * | 2020-11-26 | 2021-04-02 | 依米康科技集团股份有限公司 | Subway channel type evaporative cold water cooling air system and control method |
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| JP2007315717A (en) * | 2006-05-29 | 2007-12-06 | Hasegawa Electric Industry Co | Operation control method for cold/hot water pump in air conditioning facility |
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| JP2007315717A (en) * | 2006-05-29 | 2007-12-06 | Hasegawa Electric Industry Co | Operation control method for cold/hot water pump in air conditioning facility |
| CN101290148A (en) * | 2007-04-20 | 2008-10-22 | 上海大智科技发展有限公司 | Water energy-saving system for air quantity variable air conditioner |
| CN102062459A (en) * | 2010-12-24 | 2011-05-18 | 东莞市虹德电子有限公司 | Energy-saving control system of central air conditioner |
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