Heat metering scheme - on-off time area method
The principle of the on-off time area method
install a building heat meter at the thermal entrance of a residential building to measure the total heat of the building;
Install a metering control valve on the user's entrance pipe to control the opening and closing of the user's heating hot water, and record its opening time;
Install a thermostat in the user's room, the thermostat measures the room temperature and controls the opening and closing of the metering control valve according to the set temperature, so as to achieve the purpose of automatically controlling the user's indoor temperature;
The data acquisition system collects the heating and hot water turning time of each user, and transmits the data to the management system platform remotely, and the system platform distributes the heat of the entire building in combination with the area of each household, so as to realize the system monitoring, data transmission, data processing, charging bills, printing and charging management of heat metering.
System diagram and equipment configuration of the on-off time area method
Each household is configured: thermostat, metering control valve or metering controller, electric heating valve
Building configuration: building heat meter, balance valve, power box, data acquisition box, etc
System configuration: system management server, system management platform software
Technical characteristics of the on-break time area method
room temperature intelligent control technology, good temperature control performance;
Valve delay switching technology avoids the simultaneous opening and closing of valves and prevents fluctuations in pipeline water flow;
reduce the impact of heat transfer between households and improve the fairness of charges;
charging according to the valve on/off time, which strengthens the user's awareness of energy conservation;
The metering equipment is installed outdoors, no need to enter the home for construction, easy to install and maintain, and fast construction;
The on/off valve has a simple structure, low requirements for water quality, and is easy to install and use.
Characteristics of the on-off time area method
Easy to operate: easy for users to adjust the temperature;
Remote control Real-time monitoring: With remote control function, remote control can be used to force valves to open and close to prevent malicious arrears;
Practical protection mechanism: power loss memory, prevent data loss;
Distributed system: infinite expansion, high adaptability, large capacity and other characteristics;
Permission setting, data security: The system administrator can set different levels of operator permissions, that is, different levels of operators can assign different permissions to facilitate management; The metering controller, data acquisition box, and monitoring computer in the system can store data, and the system can also use multiple monitoring computers for data storage, and the monitoring computers can back up each other, which greatly improves the security and reliability of data storage
Personalized reports: The system software has a flexible report printing function, and the system provides a variety of report styles for users to use, and the table can also be customized according to user needs.
Functional characteristics of the swiping card breaking time area method
It has functions such as on-off time area method measurement and control mode transmission
Local card recharge: It has the functions of local card recharge and remote network recharge; prepaid management, malicious arrears and insufficient expenses automatically cut off the heating function;
Alarm in advance and remind users to pay in time: avoid affecting normal heating due to arrears;
Multiple billing methods: support multiple billing methods such as cumulative operating time, cumulative energy consumption, and preset heating time intervals;
Multiple encryption to prevent theft: Multiple data encryption can be used to effectively suppress malicious decryption and theft.
Unique number to effectively prevent wrong card swiping: The device has a unique user number and will not swipe the wrong card;
Own intellectual property Open interface
Energy conservation management
Alarm prompt: automatic alarm for faults.
Heat metering system - user heat meter method
Principle of household heat meter method
install a building heat meter at the thermal entrance of a residential building to measure the total heat of the building;
install a household heat meter on the user's entrance pipe to measure the user's heat;
Install temperature control valves in the user's room to automatically control the user's indoor temperature;
The data acquisition system collects the hot water turning time of each user, and transmits the data to the management system platform remotely, which then distributes the heat of the entire building in combination with the area of each household, so as to realize the system monitoring, data transmission, data processing, charging bills, printing and charging management of heat metering.
Household heat meter system diagram and equipment configuration
Configuration for each household: household heat meter, thermostat valve or thermostat and electric heating valve
Building configuration: building heat meter, balance valve, power box, data acquisition box, etc
System configuration: system management server, system management platform software
Features of household heat meter systems
The household heat meter method directly shows the heat used by the user's heating:
The premise of the application of this method is that each household must have an independent circulation system (radiator system, floor water heating system);
Ultrasonic heat meter:
High flow measurement accuracy, small pressure loss, not easy to block, long service life;
The household heat meter method should consider the issue of clogging or damage:
It is necessary to formulate a treatment plan in advance to repair or replace it in time and deal with missing data.
Heat measurement and control of public buildings
Household heat meter system diagram and equipment configuration
System overview: Install a heat meter on the return pipe to measure the heating heat consumption of the building; An electric control valve is installed on the return water main, and the opening of the valve is dynamically adjusted through the temperature control box, and the flow of hot water used for heating the building is adjusted, so as to achieve energy saving under the premise of full comfort. The data acquisition system transmits various data to the system platform through the GPRS remote transmission system to realize the automation of equipment management;
System features: heat harvesting can be realized; It can control different time periods and different temperatures; It can be controlled separately by building, unit and floor; It has low-temperature anti-freeze function, which is safe and reliable;
Scope of application: Applicable to various office buildings and office buildings such as governments, schools, hospitals, factories, etc.
Heat source and heating pipeline thermal balance transformation
The effect of heat source and heating pipe network thermal balance transformation
Pump Frequency Conversion Speed Regulation Control:
Variable flow control means is an important part of system energy-saving control, and it is also an important means to save power of water pumps.
Hydraulic balance retrofitting can achieve the following effects:
Let the water flow of each subsystem be in a balanced state, ensure that the heating quality is greatly improved, and realize economic operation, so as to achieve real energy saving of the system;
Heat control of heat exchange station:
through outdoor temperature compensation, the consistent adjustment of supply and demand heat can be achieved;
Energy Consumption Monitoring:
Realize the remote transmission of equipment electricity, gas and water replenishment data to the energy consumption monitoring platform of the heating unit.
