CN104456774A - Heat humidity independently controlled air conditioning system applied to IDC machine room and refrigeration method - Google Patents
Heat humidity independently controlled air conditioning system applied to IDC machine room and refrigeration method Download PDFInfo
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- CN104456774A CN104456774A CN201310419511.2A CN201310419511A CN104456774A CN 104456774 A CN104456774 A CN 104456774A CN 201310419511 A CN201310419511 A CN 201310419511A CN 104456774 A CN104456774 A CN 104456774A
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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
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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Abstract
The present invention provides a heat humidity independently controlled air conditioning system applied to IDC machine room and a refrigeration method. The air conditioning system comprises a closed type cooling tower, a water-cooling refrigeration unit, a cold water tank, a refrigerated water pump, a cold water pump, a dry coil module, a fresh air dehumidification module, an exhaust device, an embedded control system, a closed cooling tower inlet air wet-and-dry-bulb temperature sensor, a dry coil module inlet water temperature sensor, and a dry coil module outlet water temperature sensor. The refrigeration method is as follow: when the dry bulb temperature of the outdoor air is lower than the criterion temperature 1, the closed type cooling tower operates in the dry conditions, the water-cooling refrigeration unit stops, and thus water and energy are saved; when the dry bulb temperature of the outdoor air is higher than the criterion temperature 1 and the wet bulb temperature is lower than the criterion temperature 2, the closed type cooling tower operates in the wet condition, the water-cooling refrigeration unit stops, and thus energy is saved; and when the wet bulb temperature of the outdoor air is higher than the criterion temperature 2, the water-cooling refrigeration unit operates and during the operation process the outlet water temperature is the criterion temperature 2, and thus energy is saved.
Description
Technical field
The present invention relates to the filed of air conditioning of IDC machine room, the heat being specifically related to a kind of IDC of being applied to machine room wets the independent air-conditioning system that controls and refrigerating method thereof.
Background technology
Because equipment runs in IDC machine room, heat dissipation capacity is large, and for ensureing the normal operation of equipment, computer room temperature needs to control at 22 DEG C ± 2 DEG C throughout the year.
The particularity of IDC machine room: (1) whole year is all refrigeration duty, so need annual unlatching refrigeration system, and whole day runs without interruption for 24 hours; (2) IDC machine room refrigeration duty is large, and refrigeration system energy consumption is very high; (3) for ensureing that IDC machine room still can normally run in the situation of cutting off the water, adopting during water-cooled refrigeration unit and requiring to be equipped with cistern.
The most traditional refrigeration solution of existing IDC machine room adopts air-cooled precision air conditioner, and unit refrigerating capacity is less, and a data center module generally all needs to install multiple stage and just can satisfy the demand.
Air-cooled precision air conditioner major defect is as follows: the Energy Efficiency Ratio of (1) refrigeration system is low: adopt air cooling way, comparatively water-cooled refrigeration system is low for Energy Efficiency Ratio, and whole year operation energy consumption is large; (2) difficulty is installed: a large amount of outdoor condensers is installed and needed very large place, and copper pipe is long, and refrigerating efficiency is low, and cost is high, and installation difficulty is large, and affects facade.(3) installation site of outdoor condenser is by space constraint, occurs tropical island effect most probably, greatly reduces refrigerating efficiency.(4) when summer, outdoor temperature was very high, refrigerating capacity degradation even protects shutdown.(5) operating temperature of precision air conditioner inner fan coil pipe is significantly less than dew-point temperature, produces a large amount of condensed water, and in order to maintain the humidity of data center, need to start humidification function, dehumidifying and humidification all will consume a large amount of energy.
Due to the expansion of IDC machine room scale, water-cooled refrigeration unit is adopted to coordinate the system form of IDC end equipment to get more and more.
Traditional water-cooled refrigeration unit (open cooling tower of employing) coordinates the system of IDC end equipment (water-cooled precision air conditioner), and major defect is as follows: (1), due to the annual refrigeration duty of IDC machine room, water-cooled refrigeration unit is opened the whole year, and operating cost is high.(2) a large amount of condensed water is produced during the work of water-cooled precision air conditioner, for ensureing the normal operation of equipment in IDC machine room, need the relevant device of set handling condensed water, as needs do check dam, water-proofing treatment is done on ground, arrange drainage pipeline, install water leakage alarm equipment.(3) adopt open cooling tower, need the cistern volume requirement of outfit large, floor space is large, and water consumption is large.
Summary of the invention
For the above-mentioned defect of existing IDC computer-room air conditioning system technology, applicant is through Improvement, a kind of heat of the IDC of being applied to machine room is provided to wet independence control air conditioner system and refrigerating method thereof, by dry coil pipe module and fresh air dehumidification module composition air-conditioning system, closed cooling tower and water-cooled refrigeration unit form refrigeration system, by cooperation, solve in current technology the above-mentioned defect existed.
Technical scheme of the present invention is as follows:
The heat that the invention provides a kind of IDC of being applied to machine room wets independence control air conditioner system, comprise the closed cooling tower, water-cooled refrigeration unit, cold water tank, chilled water pump, cooling water pump and the dry coil pipe module that are connected by pipeline, independently fresh air dehumidification module, independently exhaust equipment, and the embedded control system of electrical connection, closed cooling tower air intake wet and dry bulb temperature sensor, dry coil pipe module inflow temperature sensor, dry coil pipe module leaving water temperature sensors, closed cooling tower fan frequency converter, closed cooling tower water circulating pump frequency converter and each electrically operated valve;
Running water pipe, first delivery port of cold water tank by pipeline respectively through the first electrically operated valve, second electrically operated valve is connected with the water supplement port of closed cooling tower, the delivery port of closed cooling tower is connected with the water inlet of cold water tank through the 3rd electrically operated valve by pipeline, the delivery port of closed cooling tower is connected with the water inlet of cooling water pump with the 5th electrically operated valve by the 4th electrically operated valve of pipeline through being linked in sequence again, the delivery port of closed cooling tower is also connected with the water inlet of chilled water pump with the 6th electrically operated valve by the 4th electrically operated valve of pipeline through being linked in sequence, first delivery port of water-cooled refrigeration unit is connected with the water inlet of chilled water pump through the 7th electrically operated valve by pipeline, the delivery port of chilled water pump is directly connected with the water inlet of dry coil pipe module by pipeline, the delivery port of dry coil pipe module by pipeline respectively through the 8th electrically operated valve, first water inlet of the 9th electrically operated valve and water-cooled refrigeration unit, the water inlet of closed cooling tower connects, the delivery port of cooling water pump is directly connected with the second water inlet of water-cooled refrigeration unit by pipeline, second delivery port of water-cooled refrigeration unit is directly connected with the water inlet of closed cooling tower by pipeline, second delivery port of cold water tank is connected through the water inlet of the 5th electrically operated valve, the 6th electrically operated valve cooling water pump, the water inlet of chilled water pump respectively by pipeline, fresh air dehumidification module, exhaust equipment are independently arranged in IDC machine room,
Closed cooling tower air intake wet and dry bulb temperature sensor is arranged on the air inlet of closed cooling tower; Dry coil pipe module inflow temperature sensor is arranged on dry coil pipe module water supply line; Dry coil pipe module leaving water temperature sensors is arranged on dry coil pipe module water return pipeline.The signal input embedded control system that closed cooling tower air intake wet and dry bulb temperature sensor, dry coil pipe module inflow temperature sensor and dry coil pipe module leaving water temperature sensors gather, the signal that embedded control system exports controls each electrically operated valve and closed cooling tower fan frequency converter, closed cooling tower water circulating pump frequency converter.
2. the heat being applied to IDC machine room wets and independently controls a refrigerating method, is specially:
1) when the dry-bulb temperature of outdoor air is lower than criterion temperature 1, water-cooled refrigeration unit is shut down, and closed cooling tower dry cooling condition runs, and provides chilled water, ensures that dry coil pipe module dry cooling condition runs while cooling dry coil pipe module;
2) when the dry-bulb temperature of outdoor air higher than criterion temperature 1 and wet-bulb temperature lower than criterion temperature 2, water-cooled refrigeration unit is shut down, and closed cooling tower wet cooling condition runs, and provides chilled water, ensures that dry coil pipe module dry cooling condition runs while cooling dry coil pipe module;
3) when the wet-bulb temperature of outdoor air is higher than criterion temperature 2, water-cooled refrigeration unit is run, and provides chilled water, ensures that dry coil pipe module dry cooling condition runs while cooling dry coil pipe module;
4) when water-cooled refrigeration unit is run, leaving water temperature controls in criterion temperature 2, ensures the Energy Efficiency Ratio improving water-cooled refrigeration unit while dry coil pipe module dry cooling condition runs to greatest extent.
Advantageous Effects of the present invention is:
The present invention adopts the wet independence control air conditioner system of heat, bears indoor refrigeration duty, bear new wind and whole humidity load by fresh air dehumidification module by dry coil pipe module.The operating temperature of dry coil pipe module runs on more than dew-point temperature, does not need to bear indoor humidity load.
The present invention adopts the coil pipe dry cooling condition in dry coil pipe module to run, and evaporated condensation water produces, therefore, need not the relevant device of set handling condensed water, ensure the safe operation of machine room.
The present invention adopts the coil pipe dry cooling condition in dry coil pipe module to run, and the area of coil pipe and riding position are more flexible, can greatly increase heat exchange area and heat transfer effect.
The present invention adopts the coil pipe dry cooling condition in dry coil pipe module to run, and coil pipe running temperature is high, and required chilled water temperature is high.Most of the time in 1 year all can adopt closed cooling tower to provide cooling water, greatly reduces refrigeration unit running time, energy-conservation; Adopt under suitable weather conditions closed cooling tower dry cooling condition run chilled water is provided, energy-conservation, water saving, antifreeze.When adopting water-cooled refrigeration unit to provide chilled water, because refrigeration system leaving water temperature improves, refrigeration unit COP improves, energy-conservation.
The dry coil pipe module that the present invention adopts does not produce effect on moisture extraction, can not separate out, reduces indoor humidity and need humidification, reduce the energy consumption that this part causes because of condensed water.
The present invention adopts fresh air dehumidification module independent operating, restricted few.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of inventive refrigeration system.
Fig. 2 is that the method for operation of inventive refrigeration system is always schemed.
Fig. 3 is under normal circumstances, the loop figure of the closed cooling tower cooling method of operation.
Fig. 4 is under normal circumstances, the chilled water circulation under water-cooled refrigeration unit cooling operation mode, cooling water circulation loop figure.
Fig. 5 is under normal circumstances, the water-supply map of inventive refrigeration system.
Fig. 6 is in situation of promptly cutting off the water, the water-supply map of inventive refrigeration system.
[reference numeral explanation] 1. closed cooling tower; 2. water-cooled refrigeration unit; 3. cold water tank; 4. chilled water pump; 5. cooling water pump; 6. dry coil pipe module; 7. fresh air dehumidification module; 8. exhaust equipment; 9. embedded control system; 10. closed cooling tower air intake wet and dry bulb temperature sensor; 11. dry coil pipe module inflow temperature sensors; 12. dry coil pipe module leaving water temperature sensors; 13. electrically operated valves; 14. electrically operated valves; 15. electrically operated valves; 16. electrically operated valves; 17. electrically operated valves; 18. electrically operated valves; 19. electrically operated valves; 20. motor-driven valves; 21. motor-driven valves; 22. closed cooling tower fan frequency converters; 23. closed cooling tower water circulating pump frequency converters.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As shown in Figure 1, refrigeration system of the present invention comprises closed cooling tower 1, water-cooled refrigeration unit 2, cold water tank 3, chilled water pump 4, cooling water pump 5, dry coil pipe module 6, fresh air dehumidification module 7, exhaust equipment 8, embedded control system 9, closed cooling tower air intake wet and dry bulb temperature sensor 10, dry coil pipe module inflow temperature sensor 11, dry coil pipe module leaving water temperature sensors 12, closed cooling tower fan frequency converter 22, closed cooling tower water circulating pump frequency converter 23 and multiple electrically operated valve 13 ~ 21.
See Fig. 1, running water pipe, first delivery port of cold water tank (3) by pipeline respectively through the first electrically operated valve (20), second electrically operated valve (21) is connected with the water supplement port of closed cooling tower (1), the delivery port of closed cooling tower (1) is connected with the water inlet of cold water tank (3) through the 3rd electrically operated valve (13) by pipeline, the delivery port of closed cooling tower (1) is connected with the water inlet of cooling water pump (5) with the 5th electrically operated valve (15) by the 4th electrically operated valve (14) of pipeline through being linked in sequence again, the delivery port of closed cooling tower (1) is also connected with the water inlet of chilled water pump (4) with the 6th electrically operated valve (16) by the 4th electrically operated valve (14) of pipeline through being linked in sequence, first delivery port of water-cooled refrigeration unit (2) is connected with the water inlet of chilled water pump (4) through the 7th electrically operated valve (17) by pipeline, the delivery port of chilled water pump (4) is directly connected with the water inlet of dry coil pipe module (6) by pipeline, the delivery port of dry coil pipe module (6) by pipeline respectively through the 8th electrically operated valve (18), first water inlet of the 9th electrically operated valve (19) and water-cooled refrigeration unit (2), the water inlet of closed cooling tower (1) connects, the delivery port of cooling water pump (5) is directly connected with the second water inlet of water-cooled refrigeration unit (2) by pipeline, second delivery port of water-cooled refrigeration unit (2) is directly connected with the water inlet of closed cooling tower (1) by pipeline, second delivery port of cold water tank (3) is connected with the water inlet of cooling water pump (5), the water inlet of chilled water pump (4) through the 5th electrically operated valve (15), the 6th electrically operated valve (16) respectively by pipeline, fresh air dehumidification module (7), exhaust equipment (8) are independently arranged in IDC machine room,
See Fig. 1, closed cooling tower air intake wet and dry bulb temperature sensor (10) is arranged on the air inlet of closed cooling tower (1); Dry coil pipe module inflow temperature sensor (11) is arranged on dry coil pipe module (6) water supply line; Dry coil pipe module leaving water temperature sensors (12) is arranged on dry coil pipe module (6) water return pipeline.Signal input embedded control system (9) that closed cooling tower air intake wet and dry bulb temperature sensor (10), dry coil pipe module inflow temperature sensor (11), dry coil pipe module leaving water temperature sensors (12) gather, the signal that embedded control system (9) exports controls closed cooling tower fan frequency converter (22), closed cooling tower water circulating pump frequency converter (23) on each electrically operated valve (13 ~ 21) and closed cooling tower (1), meet optimum control under each operating mode, play object that is energy-conservation, water saving; Wherein, closed cooling tower fan frequency converter (22) controls the air quantity of closed cooling tower (1); Closed cooling tower water circulating pump frequency converter (23) controls the water spray of closed cooling tower (1).
The total method of operation of inventive refrigeration system as shown in Figure 2, is divided into normal condition, emergency two kinds.
See Fig. 2, under normal circumstances, refrigeration system is divided into again " closed cooling tower cooling " and " water-cooled refrigeration unit refrigeration " two kinds of methods of operation.Its control mode is as follows respectively:
1, closed cooling tower cooling: when wet-bulb temperature is lower than criterion temperature 2 in closed cooling tower air intake wet and dry bulb temperature sensor 10 temperature, embedded control system 9 exports control signal, controls each electrically operated valve and forms following opening and closing combination:
| Motor-driven valve 20 | Open | Motor-driven valve 21 | Close |
| Motor-driven valve 13 | Open | Motor-driven valve 14 | Close |
| Motor-driven valve 15 | Close | Motor-driven valve 16 | Open |
| Motor-driven valve 17 | Close | ||
| Motor-driven valve 18 | Close | Motor-driven valve 19 | Open |
Under above-mentioned opening and closing combination, the operating loop of refrigeration system as shown in Figure 3.Water-cooled refrigeration unit is shut down, and closed cooling tower runs, and provides chilled water, and chilled water is led to cold water tank, and guaranteed flow also extends the time utilizing cooling tower cooling.
" closed cooling tower cooling " method of operation can be divided into again " operation of closed cooling tower dry cooling condition " and " operation of closed cooling tower wet cooling condition " two kinds of situations.
(1), when closed cooling tower air intake wet and dry bulb temperature sensor 10 dry-bulb temperature is lower than criterion temperature 1, system should run on " closed cooling tower dry cooling condition ".The blower fan of closed cooling tower 1 normally runs, and Sprayer Circulation water pump quits work.Water-cooled refrigeration unit 2 is shut down.Embedded control system 9, according to the data determination control signal of dry coil pipe module leaving water temperature sensors 12, controls closed cooling tower fan frequency converter 22, ensures that dry coil pipe module dry cooling condition runs, to reach antifreeze, water saving, energy-conservation effect.
(2) closed cooling tower air intake wet and dry bulb temperature sensor 10 dry-bulb temperature higher than criterion temperature 1 and wet bulb bulb temperature lower than criterion temperature 2 time, system cloud gray model is in " closed cooling tower wet cooling condition ".The blower fan of closed cooling tower 1 normally runs, and Sprayer Circulation water pump normally works.Water-cooled refrigeration unit 2 is shut down.Embedded control system 9, according to the data determination control signal of dry coil pipe module leaving water temperature sensors 12, controls closed cooling tower fan frequency converter 22, thus controls air quantity; Control closed cooling tower Sprayer Circulation pump variable frequency device 23, thus control water spray, meet the requirement that dry coil pipe module 6 dry cooling condition runs, to reach energy-conservation effect.
2, water-cooled refrigeration unit refrigeration: when closed cooling tower air intake wet and dry bulb temperature sensor 10 wet-bulb temperature is higher than criterion temperature 2, embedded control system 9 exports control signal, controls each electrically operated valve and forms following opening and closing combination:
| Motor-driven valve 20 | Open | Motor-driven valve 21 | Close |
| Motor-driven valve 13 | Close | Motor-driven valve 14 | Open |
| Motor-driven valve 15 | Open | Motor-driven valve 16 | Close |
| Motor-driven valve 17 | Open | ||
| Motor-driven valve 18 | Open | Motor-driven valve 19 | Close |
Under above-mentioned opening and closing combination, the operating loop of refrigeration system as shown in Figure 4:
The blower fan of closed cooling tower 1 normally runs, and Sprayer Circulation water pump normally works.Water-cooled refrigeration unit 2 is started shooting.Embedded control system 9 is according to the data determination control signal of dry coil pipe module leaving water temperature field device 12, and the leaving water temperature making water-cooled refrigeration unit is criterion temperature 2, meets the requirement that dry coil pipe module 6 dry cooling condition runs, to reach energy-conservation effect.
Comprehensively above-mentioned 1,2 methods of operation, when the water temperature in cold water tank 3 meets the demands (system not using outside air temperature as criterion, but using the leaving water temperature of dry coil pipe module as foundation), just can not open water-cooled refrigeration unit 2.Only have the leaving water temperature when dry coil pipe module too high, the cold water in cold water tank 3 can not meet the demand of dry coil pipe module, just needs to open water-cooled refrigeration unit 2.
See Fig. 2, " emergency " refers to the situation of promptly cutting off the water.
3. promptly cut off the water.
Above-mentioned 1,2 under normal circumstances, and the ruuning situation of system as shown in Figure 5.And in situation of promptly cutting off the water, the ruuning situation of system then as shown in Figure 6.Now, embedded control system 9 exports control signal, controls each electrically operated valve and forms following opening and closing combination: (action of other electrically operated valves is constant)
| Motor-driven valve 20 | Close | Motor-driven valve 21 | Open |
| Motor-driven valve 13 | Close | Motor-driven valve 14 | Open |
Based on above-mentioned refrigeration system, refrigerating method proposed by the invention is as follows:
1) when the dry-bulb temperature of outdoor air is lower than criterion temperature 1, water-cooled refrigeration unit is shut down, and closed cooling tower dry cooling condition runs, and provides chilled water, ensures that dry coil pipe module dry cooling condition runs while cooling dry coil pipe module;
2) when the dry-bulb temperature of outdoor air higher than criterion temperature 1 and wet-bulb temperature lower than criterion temperature 2, water-cooled refrigeration unit is shut down, and closed cooling tower wet cooling condition runs, and provides chilled water, ensures that dry coil pipe module dry cooling condition runs while cooling dry coil pipe module;
3) when the wet-bulb temperature of outdoor air is higher than criterion temperature 2, water-cooled refrigeration unit is run, and provides chilled water, ensures that dry coil pipe module dry cooling condition runs while cooling dry coil pipe module;
4), when water-cooled refrigeration unit is run, leaving water temperature controls in criterion temperature 2.
Above-described is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive without departing from the basic idea of the present invention or associate, all should think and be included within protection scope of the present invention.
Claims (2)
1. the heat being applied to IDC machine room wets the independent air-conditioning system controlled, it is characterized in that: comprise the closed cooling tower (1) connected by pipeline, water-cooled refrigeration unit (2), cold water tank (3), chilled water pump (4), cooling water pump (5) and dry coil pipe module (6), independently fresh air dehumidification module (7), independently exhaust equipment (8), and the embedded control system (9) of electrical connection, closed cooling tower air intake wet and dry bulb temperature sensor (10), dry coil pipe module inflow temperature sensor (11), dry coil pipe module leaving water temperature sensors (12), closed cooling tower fan frequency converter (22), closed cooling tower water circulating pump frequency converter (23) and each electrically operated valve (13 ~ 21),
Running water pipe, first delivery port of cold water tank (3) by pipeline respectively through the first electrically operated valve (20), second electrically operated valve (21) is connected with the water supplement port of closed cooling tower (1), the delivery port of closed cooling tower (1) is connected with the water inlet of cold water tank (3) through the 3rd electrically operated valve (13) by pipeline, the delivery port of closed cooling tower (1) is connected with the water inlet of cooling water pump (5) with the 5th electrically operated valve (15) by the 4th electrically operated valve (14) of pipeline through being linked in sequence again, the delivery port of closed cooling tower (1) is also connected with the water inlet of chilled water pump (4) with the 6th electrically operated valve (16) by the 4th electrically operated valve (14) of pipeline through being linked in sequence, first delivery port of water-cooled refrigeration unit (2) is connected with the water inlet of chilled water pump (4) through the 7th electrically operated valve (17) by pipeline, the delivery port of chilled water pump (4) is directly connected with the water inlet of dry coil pipe module (6) by pipeline, the delivery port of dry coil pipe module (6) by pipeline respectively through the 8th electrically operated valve (18), first water inlet of the 9th electrically operated valve (19) and water-cooled refrigeration unit (2), the water inlet of closed cooling tower (1) connects, the delivery port of cooling water pump (5) is directly connected with the second water inlet of water-cooled refrigeration unit (2) by pipeline, second delivery port of water-cooled refrigeration unit (2) is directly connected with the water inlet of closed cooling tower (1) by pipeline, second delivery port of cold water tank (3) is connected with the water inlet of cooling water pump (5), the water inlet of chilled water pump (4) through the 5th electrically operated valve (15), the 6th electrically operated valve (16) respectively by pipeline, fresh air dehumidification module (7), exhaust equipment (8) are independently arranged in IDC machine room,
Closed cooling tower air intake wet and dry bulb temperature sensor (10) is arranged on the air inlet of closed cooling tower (1); Dry coil pipe module inflow temperature sensor (11) is arranged on dry coil pipe module (6) water supply line; Dry coil pipe module leaving water temperature sensors (12) is arranged on dry coil pipe module (6) water return pipeline; Signal input embedded control system (9) that closed cooling tower air intake wet and dry bulb temperature sensor (10), dry coil pipe module inflow temperature sensor (11) and dry coil pipe module leaving water temperature sensors (12) gather, the signal that embedded control system (9) exports controls each electrically operated valve (13 ~ 21) and closed cooling tower fan frequency converter (22), closed cooling tower water circulating pump frequency converter (23).
2. the heat being applied to IDC machine room wets and independently controls a refrigerating method, it is characterized in that:
1) when the dry-bulb temperature of outdoor air is lower than criterion temperature 1, water-cooled refrigeration unit is shut down, and closed cooling tower dry cooling condition runs, and provides chilled water, ensures that dry coil pipe module dry cooling condition runs while cooling dry coil pipe module;
2) when the dry-bulb temperature of outdoor air higher than criterion temperature 1 and wet-bulb temperature lower than criterion temperature 2, water-cooled refrigeration unit is shut down, and closed cooling tower wet cooling condition runs, and provides chilled water, ensures that dry coil pipe module dry cooling condition runs while cooling dry coil pipe module;
3) when the wet-bulb temperature of outdoor air is higher than criterion temperature 2, water-cooled refrigeration unit is run, and provides chilled water, ensures that dry coil pipe module dry cooling condition runs while cooling dry coil pipe module;
4) when water-cooled refrigeration unit is run, leaving water temperature controls in criterion temperature 2, ensures the Energy Efficiency Ratio improving water-cooled refrigeration unit while dry coil pipe module dry cooling condition runs to greatest extent.
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| CN201310419511.2A CN104456774A (en) | 2013-09-13 | 2013-09-13 | Heat humidity independently controlled air conditioning system applied to IDC machine room and refrigeration method |
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| CN201310419511.2A CN104456774A (en) | 2013-09-13 | 2013-09-13 | Heat humidity independently controlled air conditioning system applied to IDC machine room and refrigeration method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157177A (en) * | 2015-09-18 | 2015-12-16 | 广州市设计院 | Method for controlling cooling tower outlet water temperature according to outdoor air state |
| CN106610063A (en) * | 2017-01-09 | 2017-05-03 | 贵州绿云科技有限公司 | Modularly-designed double-cold-source integrated cooling station system |
| CN106765683A (en) * | 2016-11-18 | 2017-05-31 | 中国建筑上海设计研究院有限公司 | A kind of temperature controllable low-temperature receiver suitable for Northwest Dry Region is configured and its application method |
| CN111457514A (en) * | 2020-04-28 | 2020-07-28 | 烟台泓麟制冷空调工程有限公司 | Energy-saving constant-temperature humidity-control air conditioning system capable of supplying cold in winter by utilizing cooling tower and temperature-control dehumidification method |
| CN113654130A (en) * | 2021-07-20 | 2021-11-16 | 赵林巍 | Water temperature automatic cooling device |
| CN114838483A (en) * | 2022-05-23 | 2022-08-02 | 宁波奥克斯电气股份有限公司 | Control method and control device of air conditioner and air conditioner |
| CN115164635A (en) * | 2022-06-28 | 2022-10-11 | 广东云下汇金科技有限公司 | Method and system for controlling fan of closed cooling tower |
| CN115371132A (en) * | 2022-08-26 | 2022-11-22 | 珠海格力电器股份有限公司 | Indoor environment improvement system and method |
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| CN105157177A (en) * | 2015-09-18 | 2015-12-16 | 广州市设计院 | Method for controlling cooling tower outlet water temperature according to outdoor air state |
| CN105157177B (en) * | 2015-09-18 | 2021-12-31 | 广州市设计院 | Method for controlling outlet water temperature of cooling tower according to outdoor air state |
| CN106765683A (en) * | 2016-11-18 | 2017-05-31 | 中国建筑上海设计研究院有限公司 | A kind of temperature controllable low-temperature receiver suitable for Northwest Dry Region is configured and its application method |
| CN106610063B (en) * | 2017-01-09 | 2019-03-08 | 贵州绿云科技有限公司 | A kind of double cold sources of modularized design integrate cold station system |
| CN106610063A (en) * | 2017-01-09 | 2017-05-03 | 贵州绿云科技有限公司 | Modularly-designed double-cold-source integrated cooling station system |
| CN111457514A (en) * | 2020-04-28 | 2020-07-28 | 烟台泓麟制冷空调工程有限公司 | Energy-saving constant-temperature humidity-control air conditioning system capable of supplying cold in winter by utilizing cooling tower and temperature-control dehumidification method |
| CN111457514B (en) * | 2020-04-28 | 2024-01-02 | 山东泓麟环境工程技术有限公司 | Energy-saving constant-temperature humidity control air conditioning system capable of utilizing cooling tower for cooling in winter and temperature control dehumidification method |
| CN113654130A (en) * | 2021-07-20 | 2021-11-16 | 赵林巍 | Water temperature automatic cooling device |
| CN113654130B (en) * | 2021-07-20 | 2024-05-14 | 赵林巍 | Automatic water temperature cooling device |
| CN114838483A (en) * | 2022-05-23 | 2022-08-02 | 宁波奥克斯电气股份有限公司 | Control method and control device of air conditioner and air conditioner |
| CN114838483B (en) * | 2022-05-23 | 2023-08-04 | 宁波奥克斯电气股份有限公司 | Control method and control device of air conditioner and air conditioner |
| CN115164635A (en) * | 2022-06-28 | 2022-10-11 | 广东云下汇金科技有限公司 | Method and system for controlling fan of closed cooling tower |
| CN115371132A (en) * | 2022-08-26 | 2022-11-22 | 珠海格力电器股份有限公司 | Indoor environment improvement system and method |
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