CN201615559U - Integral energy-saving and environment-friendly air conditioner for base station - Google Patents

Integral energy-saving and environment-friendly air conditioner for base station Download PDF

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Publication number
CN201615559U
CN201615559U CN2010201309240U CN201020130924U CN201615559U CN 201615559 U CN201615559 U CN 201615559U CN 2010201309240 U CN2010201309240 U CN 2010201309240U CN 201020130924 U CN201020130924 U CN 201020130924U CN 201615559 U CN201615559 U CN 201615559U
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China
Prior art keywords
indoor
blower fan
fan
compressor
volute
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Expired - Lifetime
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CN2010201309240U
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Chinese (zh)
Inventor
刘隆川
陈煜佳
陈政文
江辉民
许明松
林标新
郑泽顺
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GUANGDONG JIRONG AIR-CONDITIONER Co Ltd
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GUANGDONG JIRONG AIR-CONDITIONER Co Ltd
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Abstract

The utility model relates to an integral energy-saving and environment-friendly air conditioner for a base station, which comprises a control device and a refrigeration circulating loop comprising a compressor, a low-pressure liquid storage device, an indoor evaporator, an expansion valve and a condenser which are connected in sequence. The integral energy-saving and environment-friendly air conditioner is characterized in that a fresh air cooling device is arranged and comprises a proportional fresh air valve and an indoor circulating high-efficiency volute-free fan, wherein the indoor circulating high-efficiency volute-free fan not only serves as an evaporator fan, but also serves as a fresh air introducing fan. When the temperature of outdoor fresh air is lower than a set value of the indoor temperature, the control device controls to stop the operation of a compressor to reduce the operation efficiency; fresh air is introduced by using the indoor volute-free high-efficiency fan; the fresh air valve is opened and the fresh air opening degree is adjusted so as to achieve the aim of controlling the indoor temperature and saving energy; and meanwhile, the compressor adopts an environment-friendly R407C refrigerant and a frequency converter technology. Compared with the conventional air-conditioning system, the utility model has the advantages of remarkable energy economization, high control precision, energy economization, environmental protection and the like as well as better market prospect.

Description

Total energy-saving environmental base station air-conditioning
Technical field:
The utility model relates to a kind of total energy-saving environmental base station air-conditioning, specifically is a kind of energy-saving environment-protecting integrated formula base station air-conditioning that can pass through VFC, new air cooling adjusting indoor temperature.
Background technology:
In order to guarantee the normal operation of (as communication base station, exchange room etc.) equipment under some special occasions, need air conditioner to satisfy indoor desired temperature, cleanliness factor usually.At present, air conditioner conventional on the market is in order to satisfy the requirement of constant indoor temperature, and measures such as the normally start and stop by compressor, variation that heater adds heat, indoor fan stepping speed change realize.Though also there are following a series of problems in start and stop and the adjusting of the heater requirement that can realize constant indoor temperature of conventional air conditioner by compressor:
1. load adaptability is relatively poor.When external environment or indoor load changed, conventional air conditioner was by the start and stop of compressor and the continuous adjusting of heater, and it is longer to make indoor temperature be stabilized to the required time of new equalization point, and it is very big to consume energy.
2. there is not new air cooling function, the indoor units of conventional air-conditioning unit is installed in the indoor environment, isolated with the new wind in the external world, no matter newly the wind-warm syndrome degree just, controller can only sensing chamber in temperature, the refrigeration or the heating of control compressor are regulated the indoor circulation air, and to reach the requirement of indoor temperature, this causes natural cooling source can't utilize and waste a large amount of electric energy.
3. control accuracy is lower.Conventional system mainly is to regulate the control that realizes indoor temperature by dibit, and therefore, its control accuracy is more relatively low.In general, it is ± 1 ℃~± 2 ℃ for control accuracy of temperature.
4. energy dissipation is more serious.Owing to rely on the start and stop of compressor and the variation that heater adds heat, realize the adjusting of refrigerating capacity, so the cold and hot amount cancelled ratio of system is bigger.
5. seasonal energy efficiency ratio (seer) is low.Usually, in the most of the time, constant temperature air conditioning machine capacity is greater than indoor load, and this will certainly cause the phenomenon of " low load with strong power ", and the operational efficiency of system reduces, and the counteracting of cold and hot amount in addition is so the seasonal energy efficiency ratio (seer) of conventional system is low.
6. the compressor life-span is not high.Because the frequent starting of compressor must cause the shortening of its service life.
7. the impact to electrical network is very big.Because the starting current of compressor is 5~7 times of rated current normally, and the frequent starting of compressor will certainly cause the impact bigger to outdoor electrical network.
8. conventional air-conditioning only provides a kind of power supply standard, externally outage or when having a power failure, and the air-conditioning unit can't operate as normal, has a strong impact on the normal operation of equipment in the base station even makes device damage.
Summary of the invention:
The purpose of this utility model is aimed at the drawback that conventional constant temperature air conditioning machine operation exists, utilize compressor variable frequency control technology, electronic speed regulation efficiently not to have volute circulating fan and fresh air energy-saving control technology, and with these technological incorporation in total energy-saving environmental base station air-conditioning, propose a kind of environmental protection, energy-conservation, seasonal energy efficiency ratio (seer) is high, electrical network is impacted the total energy-saving environmental base station air-conditioning little, that noise is low, the scope of application is wider.
The utility model, comprise control device, with the refrigeration cycle that constitutes by the compressor that is connected successively, low-pressure oil storage, indoor evaporator, expansion valve and condenser, the evaporator arrangement indoor circulation does not efficiently have the volute blower fan, condenser arrangement condenser fan motor and condenser fan, it is characterized in that: new air-cooling device is set, described new air-cooling device does not efficiently have the volute blower fan by new air-valve of ratio and indoor circulation and constitutes, it is evaporator fan that indoor circulation does not efficiently have the volute blower fan, is again that new wind is introduced blower fan.Unit is opened new air-valve by control device control stopping compressor operating or reduction operate power when new wind-warm syndrome degree is low, introduces new wind by indoor no volute efficient circulation blower fan, and regulates new wind aperture to reach control indoor temperature and purpose of energy saving.Unit makes full use of natural cooling source (the new wind of low temperature), and by regulating the aperture of air-valve, by unit in-built PID control technology, reaches the requirement of indoor temperature, thereby reach purpose of energy saving.Because this moment, compressor and condensation fan were in stopped status, energy-saving effect is more obvious.
The utility model, described outdoor condenser fan motor are stepping control motor, and it is that electronic speed regulation does not have the volute blower fan that indoor circulation does not efficiently have the volute blower fan; When adopting dew air-cooling device, indoor circulation does not efficiently have the Synchronization Control that is controlled to be of volute blower fan and the new air-valve of ratio.Because condenser fan motor and evaporator fan motor adopt stepping to regulate or electronic speed regulation, according to the variation of load, blower fan can move under gear that is fit to or rotating speed.
The utility model, described compressor adopt environment-friendly type R407C cold-producing medium, and frequency converter is set, and frequency converter is made up of the noise filter, current sensor, rectifier filter and the inverse converter that connect successively.Frequency converter also can adopt the DC frequency-changing technology, and it is energy-conservation more remarkable.
The utility model, because compressor adopts VFC, stepping or speed governing adjusting device are set on two device blower motors,, advantages such as control accuracy is high and energy-conservation are arranged than the conventional air-conditioning facility to the Synchronization Control that is controlled to be of the compressor of described VFC and expansion valve.
With respect to traditional constant temperature air conditioning machine, the utility model at indoor load hour, the power of compressor reduces, the power of blower fan reduces, and can reduce like this or frequent start-stop compressor, so system has not only saved energy, and prolonged service life of unit, be to kill two birds with one stone.
The utility model, described temperature control equipment comprises singlechip controller, and the plural number input control end of singlechip controller is the interior temperature-sensing element (device) of junction chamber, outdoor temperature sensing element, evaporator outlet temperature sensing element and condensator outlet temperature-sensing element (device) respectively; The plural output control terminal of singlechip controller does not efficiently have volute blower fan, condenser fan motor, current sensor with compressor, expansion valve, indoor circulation respectively and is connected with inverse converter.
The utility model, described indoor circulation efficiently do not have the volute blower fan and adopt the DC48V power supply, under the situation of communication base station external power source outage, can introduce new wind by inside of base station DC48V power supply inside of base station equipment is cooled off.
The utility model because of adopting technical scheme as above, has following tangible good effect:
1, load adaptability is stronger.When indoor load changes, can control the operating frequency of compressor, the aperture of expansion valve, the gear of two device blower fans or rotating speed are exerted oneself system and are adapted with load as far as possible.
2, control accuracy height.In general, for control accuracy of temperature can reach ± 0.5 ℃~± 1 ℃.
3, energy-conservation, good economy performance.Because unit adopts compressor variable frequency control, pressure fan adopts the electronic speed regulation mode, condensation fan adopts stepping control, and introduce new air cooling function, the conservation measures of unit is comprehensive, diversified, energy-conservation obviously by advanced person's control program, by contrasting energy-conservation reaching more than 30% with conventional constant temperature air conditioning unit.
4, comprehensive Energy Efficiency Ratio height.Total energy-saving environmental type air conditioner is owing to introduce new air cooling function, and unit has tangible power savings advantages when operation throughout the year, and therefore, the comprehensive Energy Efficiency Ratio of whole system is generally wanted high more than 25% than the conventional system height.
Description of drawings:
Fig. 1 is the systematic schematic diagram of total energy-saving environmental base station air-conditioning.
Fig. 2 is the aufbauprinciple of total energy-saving environmental base station air-conditioning.
Among the figure, 1, compressor, 2, low-pressure oil storage, 3, evaporimeter, 4, expansion valve, 5, condenser, 6, singlechip controller, 7, the indoor temperature sensing element, 8, indoor highly effective does not have the volute circulating fan, 9, the condenser fan motor, 10, condenser fan, 11, the outdoor temperature sensing element, 12, new air-valve, 13, noise filter, 14, current sensor, 15, rectifier filter, 16, inverse converter, 17, the evaporator outlet temperature sensing element, 18, the condensator outlet temperature-sensing element (device), 19, filter, 20, magnetic valve, A, air intake, B, air-supply, C, return air, D, new wind.
The specific embodiment:
With reference to Fig. 1, Fig. 2, this total energy-saving environmental base station air-conditioning comprises: a complete closed cryogenic cycles loop; New air-cooling device; The complete control device of one cover.
Refrigeration cycle is to be made of compressor 1, low-pressure oil storage 2, indoor evaporator 3, expansion valve 4 and condenser 5, indoor evaporator 3 configuration indoor highly effectives do not have volute circulating fan 8, condenser 5 configuration condenser fan motor 9 and condenser fans 10, indoor highly effective do not have volute circulating fan 8 and condenser fan motor 9 all adopts stepping to regulate or electronic speed regulation is regulated.Compressor adopts environment-friendly type R407C cold-producing medium.Compressor 1 configuration AC converter, frequency converter is made of noise filter 13, current sensor 14, rectifier filter 15, inverse converter 16.
Control device adopts the PID control technology, the core singlechip controller 6 that mainly comprises control system, the plural number input control end of singlechip controller 6 is the interior temperature-sensing element (device) 7 of junction chamber, outdoor temperature sensing element 11, evaporator outlet temperature sensing element 17 and condensator outlet temperature-sensing element (device) 18 respectively; The plural output control terminal of singlechip controller 6 does not have volute circulating fan 8, condenser fan motor 9, current sensor 14 and inverse converter 16 with compressor 1, expansion valve 4, indoor highly effective respectively and is connected.
Present embodiment, indoor temperature sensing element 7 is installed in the return air inlet place, is used for the temperature in the sensing chamber; Outdoor temperature sensing element 11 is installed in new wind porch, is used for the temperature outside the sensing chamber; Be provided with a temperature-sensing element (device) 18 in the air-cooled condenser exit and be provided with a temperature-sensing element (device) 17, be used for the degree of supercooling and the degree of superheat of detection system in the indoor evaporator exit.Described temperature-sensing element (device) all is connected with the input control end of singlechip controller.The realization of the various controls of whole system all is to finish by a singlechip controller unification.System is when operation, when indoor load reduces, send signal by indoor temperature sensing element, evaporator outlet temperature sensing element and give controller, controller sends signal and gives the frequency converter of compressor, expansion valve, evaporimeter or/and the condenser fan motor then, frequency converter reduces the compressor operation frequency, the aperture of expansion valve also reduces, the corresponding reduction of the rotation speed of fan of evaporimeter and condenser or gear.
Described new air-cooling device does not efficiently have volute blower fan 8 by new air-valve 12 and indoor circulation and constitutes, and it is evaporimeter 3 blower fans that indoor circulation does not efficiently have volute blower fan 8, is again that new wind is introduced blower fan.Under the monitoring of control device and control, when outdoor new wind-warm syndrome degree be lower than the indoor temperature setting value meet or exceed 5 ℃ (its numerical value is regulated according to the actual changeable of indoor load, down with.For example, 20 ℃ of indoor temperature setting values, new wind-warm syndrome degree≤15 ℃) time, compressor 1 and condensation fan motor 9 are out of service, and new air-valve 12 turns to introduces outdoor new wind, and indoor highly effective does not have in 8 pairs of base stations of volute circulating fan equipment and ventilates and cool; When outdoor new wind-warm syndrome degree was higher than indoor temperature, new air-valve 12 turns to closed new wind, starts condensation fan motor 9 and compressor 1 simultaneously, did not have in 8 pairs of base stations of volute circulating fan equipment by indoor highly effective and ventilated and cool; When outdoor new wind-warm syndrome degree is lower than indoor temperature, but (for example the indoor temperature setting value is 20 ℃ to be lower than 5 ℃ of setting value less thaies, new wind-warm syndrome degree is 15-20 ℃) time, automatically regulate the aperture of new air-valve 12, when introducing the new wind of part, regulate the power of condensation fan motor 9 and compressor 1 automatically, its refrigerating capacity is used for replenishing the deficiency that new wind is introduced low-temperature receiver, thereby, satisfy the requirement of indoor load.
In addition, this total energy-saving environmental base station air-conditioning adopts the dual power supply standard, and the dual power supply standard is external power source and inside of base station power supply.External power source is conventional the application, the application when internal electric source is the externally fed outage, and this is a function that common type can't be realized; Control system is in conjunction with DC48V working power in the machine room, in the introducing control panel, control element and executive component are adopted DC48V power supply (compressor adopts except the AC380V), in case the outside line outage automatically switches to the machine room power supply, electric-control system works on, when computer room temperature is higher than outdoor temperature, new air-valve is opened and is carried out the nature cooling, alleviates the machine room temperature rise, meanwhile controller provides warning message, is convenient to the user and in time handles.
The function of refrigeration cycle is that system is freezed and freeze drying; New air cooling functional utilization natural cooling source (the new wind of low temperature) is lowered the temperature to indoor, plays energy-conserving action; Control system is responsible for the detection of temperature and the transmission of control signal, and the control whole system operates in the reasonable range.Since the machine configuration set compressor variable frequency control, indoor circulation efficiently do not have volute blower fan, condensation fan and adopt electronic speed regulation mode or stepping control mode, the utility model has energy-conservation obvious and control accuracy advantages of higher than conventional system, will have good market prospects.
During installation, total energy-saving environmental base station air-conditioning is placed outdoor, respectively return air inlet C and air outlet B are introduced indoor getting final product by pipeline, easy for installation.

Claims (6)

1. total energy-saving environmental base station air-conditioning, comprise control device with by the compressor that is connected successively (1), low-pressure oil storage (2), indoor evaporator (3), the refrigeration cycle that expansion valve (4) and condenser (5) constitute, evaporimeter (3) configuration indoor circulation does not efficiently have volute blower fan (8), condenser (5) configuration condenser fan motor (9) and condenser fan (10), it is characterized in that: new air-cooling device is set, described new air-cooling device does not efficiently have volute blower fan (8) by new air-valve of ratio (12) and indoor circulation and constitutes, it is evaporimeter (3) blower fan that indoor circulation does not efficiently have volute blower fan (8), is again that new wind is introduced blower fan.
2. air conditioner according to claim 1 is characterized in that: described outdoor condenser fan motor (9) is stepping control motor, and indoor circulation does not efficiently have volute blower fan (8) and do not have the volute blower fan for electronic speed regulation.
3. air conditioner according to claim 1 and 2, it is characterized in that: described compressor (1) adopts environment-friendly type R407C cold-producing medium, and the configuration frequency converter, frequency converter is made up of the noise filter (13), current sensor (14), rectifier filter (15) and the inverse converter (16) that connect successively.
4. air conditioner according to claim 3, it is characterized in that: described control device comprises singlechip controller (6), and the plural number input control end of singlechip controller (6) is the interior temperature-sensing element (device) (7) of junction chamber, outdoor temperature sensing element (11), evaporator outlet temperature sensing element (17) and condensator outlet temperature-sensing element (device) (18) respectively; The plural output control terminal of singlechip controller (6) does not efficiently have volute blower fan (8), condenser fan motor (9), current sensor (14) and inverse converter (16) with compressor (1), expansion valve (4), indoor circulation respectively and is connected.
5. air conditioner according to claim 3 is characterized in that: described indoor circulation does not efficiently have volute blower fan (8) and adopts the DC48V power supply.
6. air conditioner according to claim 4 is characterized in that: described indoor circulation does not efficiently have volute blower fan (8) and adopts the DC48V power supply.
CN2010201309240U 2010-01-29 2010-01-29 Integral energy-saving and environment-friendly air conditioner for base station Expired - Lifetime CN201615559U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110740624A (en) * 2019-10-29 2020-01-31 江苏亨通线缆科技有限公司 energy-saving mobile communication base station system
CN110979367A (en) * 2019-12-11 2020-04-10 山东朗进科技股份有限公司 Control method of condensing fan of air conditioning unit
CN111447789A (en) * 2020-03-26 2020-07-24 武汉钢铁有限公司 Data center cabinet and air conditioning control method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110740624A (en) * 2019-10-29 2020-01-31 江苏亨通线缆科技有限公司 energy-saving mobile communication base station system
CN110979367A (en) * 2019-12-11 2020-04-10 山东朗进科技股份有限公司 Control method of condensing fan of air conditioning unit
CN110979367B (en) * 2019-12-11 2022-04-05 山东朗进科技股份有限公司 Control method of condensing fan of air conditioning unit
CN111447789A (en) * 2020-03-26 2020-07-24 武汉钢铁有限公司 Data center cabinet and air conditioning control method

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Granted publication date: 20101027