Energy-saving assessment system of central air-conditioning system

A central air-conditioning system and evaluation system technology, applied in the field of energy-saving evaluation systems, can solve the problems of not being able to be universal, not considering a portable way, and not being able to use a central air-conditioning system, and achieving the effect of wide versatility

Inactive Publication Date: 2013-06-12
党亚峰 +1
7 Cites 4 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0004]2) The building automation system is a huge system engineering, and the implementation cost and comprehensive application are relatively complicated. At the same time, the design of the building automation system is independent for a certain building Design, can not achieve common use with other buildings
[0005]3) Once the building automation system is implemented, it is difficult to move the application
[0008]2) In terms of implementatio...
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Method used

[0065] By constantly detecting the power consumption of the electrical equipment included in the central air-conditioning system and compari...
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Abstract

The invention discloses an energy-saving assessment system of a central air-conditioning system. The energy-saving assessment system comprises a central air-conditioning system energy-saving analytical test platform, a power acquisition module, a temperature acquisition module, a flow acquisition module and a pressure acquisition module, wherein the power acquisition module, the temperature acquisition module, the flow acquisition module and the pressure acquisition module are respectively connected with the central air-conditioning system energy-saving analytical test platform, each module comprises a plurality of sensors corresponding to the module, and the sensors are arranged in areas where data need collecting. The system uses each gathering module to conduct dispersive data acquisition on the central air-conditioning system according to equipment distribution, uses a wired or wireless mode to upload the data to summarize, and accordingly achieves analytical test on energy-saving effects of central air-conditioning system. Each module of the system adopts the portable design and the easily-installed design, the energy-saving assessment system is simple in assembly, most central air-conditioning systems can be used, and the system is wide in generality. The system can conveniently conduct data acquisition on dispersive central air-conditioning system equipment located in buildings and solves problems of dispersive data acquisition and data summarization and uploading.

Application Domain

Technology Topic

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  • Energy-saving assessment system of central air-conditioning system
  • Energy-saving assessment system of central air-conditioning system
  • Energy-saving assessment system of central air-conditioning system

Examples

  • Experimental program(1)
  • Effect test(1)

Example Embodiment

[0054] Example
[0055] In this embodiment, the existing central air-conditioning system is refrigeration in a building of 25,000 square meters. The composition of the central air-conditioning system is: screw-type refrigeration hosts (3 units, shown in C in the figure), cooling towers (3 units, shown in B in the figure ), refrigerating circulating water pumps (4 frequency conversion control, as shown in D2 in the figure), cooling circulating water pumps (4 frequency conversion control, image 3 D1), sub-catchment (1 set, which distributes the cooling capacity of the host to each partition in the building), constant pressure water supply unit (2 sets, shown in E in the figure), softening water equipment (1 set, in the figure F), such as Figure 3-Figure 5 Shown. The specific steps for energy-saving analysis of the central air-conditioning system using the system of the present invention are as follows:
[0056] Step 1: Place the multi-channel power collection module (or other energy consumption collection module) in the low-voltage power distribution room of the central air-conditioning system, collect and summarize the power consumption of all electrical equipment of the central air-conditioning system, and collect The power consumption status of air-conditioning electrical equipment is sent to the portable central air-conditioning system energy-saving analysis and test platform in real time, such as Figure 4 As shown in the data acquisition loop, there are 13 power sensors ( Figure 4 The G refers to the power sensor), including the power consumption of each of the 3 screw refrigeration hosts; the power consumption of each of the 4 refrigeration inverter pumps; the power consumption of each of the 4 cooling inverter pumps, 1 set The power consumption of the water supply pump distribution box; the power consumption of a cooling tower power distribution box. The above 13 collection loops cover all the electrical equipment of the central air conditioning system, and the measured power consumption data is uploaded to the portable Energy-saving test platform for central air-conditioning system.
[0057] Step 2: Place the multi-channel temperature acquisition module in the central air-conditioning cold station room, such as image 3 As shown in this embodiment, the data collection for the temperature detection of the supply and return water includes 16 channels, including temperature detection of the supply and return water on the refrigeration side of the central air conditioning system, detection of the temperature of the supply and return water on the cooling side of the central air conditioning system, and Detect the water supply and return temperature of each floor of the air conditioning system from the first to the fourth floor, detect the outdoor temperature, and detect the indoor temperature at 3 points (the 3 detection points can be changed at will), and the measured temperature data is collected Upload to the portable central air-conditioning system energy-saving test platform. In the figure, A represents a temperature sensor.
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Description & Claims & Application Information

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