I. Introduction
At present, the shortage of electric energy is becoming increasingly prominent. Energy conservation and consumption reduction have become the focus of attention of the whole society. It has become an important indicator of the performance of all levels of government. To this end, the state has successively introduced relevant laws and regulations such as the “Law of the People's Republic of China on Energy Conservationâ€, “Administrative Measures on Saving Electricity,†and “Notice of the General Office of the State Council on Launching Resource Conservation Activities,†and encouraged all power companies to increase energy-saving technologies. Transformation.
Second, energy-saving ideas
The characteristics of the Telecommunication Module Bureau are wide distribution, large quantity, and high power consumption. Each Bureau of the Bureau Air Conditioning has its own equipment. According to authoritative statistics, the power consumption of the communications modules is the main energy consumption of the telecom operators, and the energy consumption of the air conditioners. Generally account for 20% to 45% of the energy consumption of the communications room, and some even as high as 60%. Therefore, under the premise of guaranteeing the normal operation of the communication equipment, energy saving must first start with air conditioning. Air-conditioning energy efficiency is fastest. Our company makes the following energy-saving analysis according to the actual situation of XX telecommunication air conditioning operation;
1, energy-saving point when the air conditioning operation
The normal working mode of the air conditioner in the module office is that when the air conditioner arrives at the temperature setting point of the module office, the indoor and outdoor units of the air conditioner are all running to cool the base station. When the temperature of the module office is lower than the set point, the air conditioner indoor unit runs and the outdoor unit stops.
Energy-saving idea: The indoor unit of the module office does not stop for a period of time. When the temperature in the module office reaches the set value, the indoor and outdoor units are turned off, allowing the air conditioner to be in standby mode, which can save the power consumption of the indoor unit when the temperature is met.
2. Little heat or new energy saving point in the new module office;
In the winter when the outdoor temperature is very low, the heat generated by the module office can meet the temperature requirements of the module office through the heat dissipation of the wall. When the air conditioning and cooling are not required, the air-conditioning indoor unit still does not stop, and the outdoor unit is stopped.
Energy-saving thinking: In the case of low outdoor temperature, the indoor unit still does not need air-conditioning cooling
Operation can shut down indoor and outdoor units and save electricity.
3, artificial adjustment of temperature:
The normal setting temperature of the modular office air conditioning is 26°C. In the summertime, the air conditioning set point temperature will often be adjusted to a very low level by non-air conditioning personnel. The air conditioning in the air conditioning unit of the module has been in a state of serious internal and external machine shutdown. waste.
Energy-saving thinking: The air-conditioning setting temperature will be operated after being maliciously adjusted to cause a waste of electricity costs. The energy-saving precision controller automatically shuts down the air conditioner when the temperature in the equipment room reaches a set value, avoiding the power consumption caused by the air-conditioner not shutting down.
4, winter temperature needs to shut down
The heat of the module is not large, the heat of the module office equipment is dissipated through the wall, and the air conditioner does not need to be turned on. In order to save energy, the air conditioner needs maintenance shutdown in the winter and needs to be maintained for maintenance in the second spring. The power on and off times are very difficult to control. For safety reasons, half of the shutdown time and boot time will be advanced, and it is not possible to start or stop the machine based on the room temperature.
Energy-saving idea: The installation and use of the precision system of the module bureau can be set on site or remotely according to the ambient temperature demand of the module bureau, which improves the control accuracy and reduces the energy consumption of the air conditioner. It also reduces the manual on-site power-on twice a year. The workload saves maintenance costs.
Third, the solution
1, working principle
A reasonable ambient temperature range is set on the site or remotely for the module office to accurately control the internal and external machines of the air-conditioner at the same time to start and stop, achieving the purpose of energy conservation and emission reduction.
The temperature range sets the upper and lower temperature limits (for example: start-up temperature: 28°C, shutdown temperature: 26°C adjustable): the on-site or remote-side temperature setting of the air conditioning temperature in the module is set.
a) After the air conditioner cooling operation makes the module office temperature reach the lower limit shutdown set point (26°C),
The quasi-control system cuts off the air conditioner power supply and puts the air conditioner in standby mode.
b) After the module room temperature rises to the upper limit set point (28°C), precise control
The system automatically turns on the air conditioner to cool the module office;
c) Remote monitoring: real-time monitoring of air conditioning operation status through remote monitoring platform;
d) remote control: can be remote computer control platform, set the air conditioning switch temperature;
e) Remote switch: Forced remote start or shutdown;
IV. Introduction to Accurate Control System
plan description:
1, the module station installation temperature precise controller and intelligent electrical operation, according to the set temperature to automatically control the start / stop of the air conditioner, under the premise of ensuring the safe operation of the equipment room, control air conditioning to save energy; also can be monitored Platform or mobile phone APP remote control air conditioning start and stop.
2. (Optional) Install “multi-function power meter†at the input end of the air conditioner power supply in the power distribution cabinet to record the running energy consumption of the air conditioner in real time. The remote monitoring software management platform can display the “day electricity consumption, electricity consumption of the current month, electricity consumption of the current year†of the air-conditioner, and save the data in the database to export the report.
3, monitoring system features:
1) A system to monitor the start/stop status of all air conditioners;
2) Remote control air conditioning start/stop;
3) Remotely monitor the module's temperature; count the maximum temperature, minimum temperature, and average temperature of the module's day
4) Report statistics: statistical alarms and reports; analysis and comparison of alarms in all regions
5) Remote mobile phone APP query, setting, control, alarm information can be notified to the responsible person in time through the mobile phone APP
6) (Optional) Electricity consumption for “day, month, and year†for air-conditioning;
7) Monitoring interface
V. Analysis of Energy Saving Effect
The air conditioning precision centralized control system of the module office accurately controls the opening and stopping of the air conditioning system of the module according to the temperature change of the module office. Reduce the operating time of the equipment and reduce the energy consumption of the air-conditioning system.
Take the 5P air conditioner as an example: According to our company's inspection of the air conditioning system of the XX Telecom Module Office (in the following table), the power consumption of a module board tie is 14640 degrees, the power charge is 0.8 yuan/degree, and the module office monitoring system is actually measured. The calculation of electricity rate of 10% can save one year: 14640 degrees × 0.8 yuan × 10% = 1171 yuan. The investment cost of the 300 modular bureaus is approximately 2260 yuan per unit (without matching), and the payback period is 2 Years to recover investment.
XX telecommunication module office power consumption statistics
game point
Air conditioning brand
Number of air conditioners
Air conditioning model
Detection time
energy used
(KW/hour)
Sunshine Newland
Mitsubishi
1
RF73WDT
2013.12-2014.12
12350
SEG Electronics
Mitsubishi
1
PSH-5GJHS
2013.12-2014.12
18600
Xinchuang Ideal Park
Mitsubishi
1
PSH-5GJHS
2013.12-2014.12
17600
Landscape Love
Mitsubishi
1
KF-75W
2013.12-2014.12
13560
Horse Garden
Mitsubishi
2
PSH-5GJHS
2013.12-2014.12
24700
Yixin Garden
Mitsubishi
1
PSH-5G.JHS
2013.12-2014.12
15370
Shi Jia Garden
Mitsubishi
1
PSH-5G.JHS
2013.12-2014.12
15010
Total air conditioning quantity
8
Average power consumption
14640
From the above analysis, it can be seen that the number of module bureaus is widely distributed, and the direct and indirect benefits generated by the use of the modular bureau air conditioners are very impressive. It can be seen that the air conditioning precision module office control system of the air conditioning system is an ideal energy-saving product for the current air-conditioning energy consumption and maintenance cost reduction.
As the earliest high-tech enterprise engaged in electric power measurement and collection, Suzhou Xinhongbo, with its leading innovative technologies and provincial electric energy service enterprise qualifications, provides system-efficient energy-saving solutions for industries, buildings, transportation, etc., helping enterprises to build Efficient and stable energy data network, and provide real-time, complete and safe energy data. To contribute to the promotion of energy demand side management and improve energy efficiency.
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