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1£® System Introduction
Policy Background:
May 21, 2008, the Ministry of Housing and Urban-Rural Development to the north fifteen provinces, municipalities and autonomous regions issued a "On promoting the north of existing residential building heating and energy-saving heating measure the implementation of the work of the views" .
To implement the "State Council on the issuance of emission reduction program of work notice" (¹ú·¢[2007] 15), and the Ministry of Housing and Urban-Rural Development, Ministry of Finance "on promoting the north of existing residential building heating and energy-saving heating measure Implementation Opinions "(½¨¿Æ[2008]95ºÅ) requirements to guide the north of existing residential building heating and energy-saving heating measure the work of the Ministry of Housing and Urban People's Republic of experts to compile the" heating area both north a residential building energy-saving heating measure and Technical Guidelines "(Trial) (½¨¿Æ[2008]126ºÅ) and in July 10, 2008 to the north fifteen provinces, municipalities and autonomous regions released.
Therefore, the north of existing residential building heating and energy-saving heating measure of work is imperative, a huge market demand, the market prospects are very broad. According to the guiding spirit of this policy, give full play to our products, resources and technology, I developed a set of actual demand for residential heating and data acquisition, heating metering and charging system.
2£® Network topology
1£® Off the end of household-type regulator heating system components, the product description
System includes three structures: field control level, data collection and communication network-level, data management level (control-center-class MCC).
3.1 Field control level
First-class on-site control level of major equipment including indoor thermostat, controller, valves and actuators. Indoor temperature control panel automatically collect room temperature, by comparison with the indoor temperature setting, and timely issue control instructions to the controller, the controller through the corresponding control valve automatically switches the control strategy to control the indoor temperature setting range . Thermostat installed in each household indoor, controller, valves and actuators installed in each household residential heating water inlet pipe of the pipeline well.
Thermostat
Basic parameters of the remote control:
¡ñ The three liquid crystal display
¡ñ Measurement Accuracy ¡À 1 ¡æ
¡ñ The default setting temperature: 20 ¡æ
¡ñ Setting temperature range: 10 ~ 25 ¡æ, non-volatile
¡ñ Set the temperature step: 0.1 ¡æ or 1 ¡æ (hold down the rising or falling short key length will be 0.1 ¡æ step change in set temperature, press 1 ¡æ to set the step change in temperature)
¡ñ Built-in 3.6V lithium battery-powered
¡ñ LCD voltage is below 2.8V voltage
Part of the valve and actuator can be two scenarios:
The first is the on-off valve controller:
On-off valve controller
On-off valve controller parameters and features:
¡ñ 24V DC power supply, power: 5 watts
¡ñ Wireless and RS485 communications
¡ñ job stability, long life, low cost.
¡ñ fair and reasonable billing method
¡ñ Low power consumption
¡ñ non-volatile non-normal data
¡ñ Non-normal power-down and communication failures, which do not affect the heating
The second is the valve controller:
Valve controller
Valve controller parameters and features:
¡ñ 24V DC power supply, power: 5 watts
¡ñ Wireless and RS485 communications
¡ñ control results are satisfactory, easy to plug-off valves by
¡ñ fair and reasonable billing method
¡ñ Low power consumption
¡ñ non-volatile non-normal data
¡ñ Non-normal power-down and communication failures, which do not affect the heating
3.1 Level data collection and communication network
Data collection and communication network level include: the central data unit, communications equipment, communication networks. Residential buildings in each one to install a central data acquisition unit, which through the RS485 bus connection controller of the household, through the open communication protocol (eg MODBUS) real-time communication with the controller, and regularly collected (time can be set) the data controller, data stored in the central memory unit, through the relevant communications equipment and communications networks and data management center to communicate with the computer, the collected data to the data management center for the measurement and charging system.
Building data acquisition box
3.1 Data management level
Data management-level monitoring center computer through the communication network and the residential central data unit within the data communications, will collect the relevant data is stored in a large database and provide data, accident alarm, data query, analysis and calculation, namely, fees, report printing, WEB publishing, online inquiries, and other data management functions to achieve and meet user metering, demand charges, the real purpose of energy-saving
1£® System advantages, features
- Off by the end of regulation and heat cost allocation method.
- Field data collection using industrial data transmission means 485 bus network, modbus communications for data collection and interaction. Reserved mbus interface, compatible with the future most of the metering equipment can easily support 485 and mbus with water, electricity, coal and other equipment or instruments to communicate.
- Network using the Internet to any form of remote meter reading and control, alarm and other functions. Such as GPRS, ADSL, dial-up, optical fiber mode, the future of 3G way. Thanks to support multiple forms of network interfaces in the future and the community can achieve good control of heat exchanger unit interaction. Monitoring center, where necessary, the controller can directly control the user.
- Year history of large-capacity memory for data storage, and convenient for any user query history this year.
- Upper network monitoring platform with the ever-changing technology, database management technology, communication technology can be set to achieve various forms of meter reading, monitoring, management fees as one of the intelligent platform for users by heating the actual software solutions to the issue of environmental differences. Heating Company for the customers and bring great convenience and reduce energy consumption.
- the (tube-wells and residences) all use 24V safe voltage, to prevent risk of electric shock. Dual standby power supply, even if the power does not affect the system communication and data collection.
- The user's equipment on-site alarm monitoring center can be quickly passed to facilitate a timely manner to be addressed.
- In addition to the conventional temperature control settings, users can easily achieve 24-hour automatic time-control, to minimize energy consumption.
- Construction account of the user inside the home to the convenience of wireless communications in the program without cable. Support cable.
2£® PC management system and related features
- Data Management Control Center PC software platform uses database software to support large-scale industrial configuration software platform, and according to the actual needs of our customers a lot of secondary development. Basic functions of data acquisition monitoring platform requirements are as follows:
- Convenient and flexible development environment, providing a variety of projects, the screen template, greatly reducing the workload of the configuration development;
- High-performance real-time, historical databases, with rapid database access interface.
- A large and powerful database software (SQL Server), and has quick access to a variety of ways to search for fast, powerful analysis and calculation, category management and other functions;
- Powerful distributed alarm, event handling, support alarm, event broken network data storage, recovery;
- New, flexible reporting design tool: provides a rich set of functions operating statements in support of complex scripts control, including: script script calls and events to provide report designer, to design several sets of report templates;
- WEB powerful publishing, WWW server for the network. NET technology development, ASP.NET and so easy to use rapid development tools to build integrated residential heating metering and charging system, enterprise information portal. Internet users can log on residents charging system real-time enterprise information portal server queries the user's own fees information, heating and energy savings, and other related information.
- Customers need a variety of other functions.
6£®PC Data Collection Chart
7. Success Stories:
This set of energy-saving heating system has been installed in several residential areas of Changchun FAW, FAW-25 A district, B district, FAW Bozhong district, FAW Taida district , FAW Duoen district, FAW Tianmao district, This system not only saves energy for the country, letting people get the benefits, which has been heating units and residential customers alike. ,
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Installation and the actual consumption of calories is not installed comparison |
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5 / 4 meter control calorimeter |
19/20 meter calorimeter Building control |
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5 |
4 |
19 |
20 |
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Date |
mwh Actual consumption of heat mwh |
mwh Actual consumption of heat mwh |
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09.01.17 09.01.17 |
0.27 0.27 |
0.44 0.44 |
0.44 0.44 |
0.57 0.57 |
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09.01.18 09.01.18 |
1.21 1.21 |
1.39 1.39 |
1.81 1.81 |
2.19 2.19 |
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09.01.18 09.01.18 |
0.4 0.4 | |
