Intelligent control system and energy management of central heating installations with hot water (radiators)

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Intelligent control system and energy management of central heating installations with hot water (radiators)

Intelligent control and energy management The hot water central heating units (radiators) use a microprocessor to control the function of the heating system. This intelligent control system exclusively directs, controls and manages the central heating equipment (engine room).Therefore, accessories such as indoor and outdoor heating radiators. . .Which are outside the environment of the central installations and are installed in other parts of the building, should be provided with local control equipment, such as thermostatic valves and. . . Manage and control.

 

This system measures a set of digital temperature sensors, temperature of running water in different parts of the heating system, as well as ambient air temperature outside the building (open air). On the other hand, the user only adjusts the temperature of hot water and the hot water temperature of the radiator radiators on the control system. Control system equipped with a clock and solar calendar for scheduling the automatic control of the heating system, performing maintenance and operation, and managing energy consumption. . . is . The microprocessor, by utilizing the information received from the temperature sensors, the settings of the user's requirements and the current date and time, and the user-defined time program, have taken control of the heating system intelligence to provide the best environmental conditions and comfort of the user. Minimizes thermal and electrical energy consumption. Thus, in the intelligent control system, conventional and old electromechanical thermostats are removed and replaced by power relays controlled by the microprocessor, and according to the feedback received from the digital temperature sensors And operate according to the current clock and calendar.

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In the cold seasons, the interior heating of the buildings, including residential, office, and workshops. . . In order to provide the comfort and tranquility of people who live and work in these environments, they have long been considered by engineers and designers of heating systems. Also, providing hot water for washing and bathing in all seasons of the year is one of the important and basic needs of residents of each building. In this regard, various methods have been developed for the heating and supply of hot water in these environments. The use of central heating systems (hot water) is one of the most commonly used heating methods.

 

The use of intelligent control system and power management of the boiler house is not a choice,

It is a requirement.

 

 

Advantages of Intelligent Control and Energy Management System:

 

Intelligent control system and energy management The central heating units with hot water (radiators) have the following benefits:

 

1 - Automatic adjustment of hot water temperature in different parts of the heating system in different seasons of year.

 

Intelligent control system, hot water running in different volumes, including boiler, return water radiator, radiant water flow direction of the respective heat exchanger, return water flow from the water supply pump and water supply. . . It measures digital high precision sensors. Meanwhile, outside air temperature (free air temperature) is also measured by a similar digital temperature sensor that is installed outside, in the shadows and away from seasonal precipitation. The manager of the central heating system, the spa hot water temperature and the temperature of the hot water heater for the proper conditions in the temperate seasons of the year on the intelligent control system. The control system, based on the ambient temperature of the outside environment, the calendar and the current clock, automatically controls the central heating equipment, including the torch and water pump, according to the planning done on the microprocessor. Thus, the control conditions of the central heating system are constantly instantaneous, on-line and intelligent, and thus the best control conditions at any given time will be applied by the microprocessor according to the feedback received from the temperature sensors. Therefore, the operating conditions of the central installations are not dependent on the accuracy, experience and skill of the relevant operator, and according to the seasonal conditions, the number of residents and other relevant variables, at any given time, automatically carried out and as a result of the efficiency of the central heating installation and the residents' satisfaction, And the energy consumption will decrease.

 

2 - Removal of all conventional electromechanical thermostats.

 

In the intelligent control system, all conventional electromechanical thermostats are eliminated, and digital temperature sensors and power relays controlled by the microprocessor will be replaced. In this way, the intelligent control system will achieve the following benefits:

 

A) The accuracy of the temperature measurement with digital sensors is +/- 0.1˚C, which is also digitally displayed and provided to the user.

 

B) The hysteresis range is completely user-friendly and adjustable for controlling the temperature of each of the accessories under the control of the intelligent system, such as boiler and torch pumps. For example, the user is able to set the permissible limit of warm water temperature through the Intelligent Control System, at a maximum of 60 degrees Celsius and at least 58 degrees Celsius (hysteresis level equivalent to 2 degrees Celsius). This will allow the user to easily adjust the desired conditions to the user.

 

(C) Due to the digitality of temperature sensors, their accuracy will not change over time. This will ensure the proper functioning of the heating system in the long run and increase its efficiency.

D) Intelligent control system equipped with software calibration for each temperature sensor and completely separate from each other.

 

E) The cost of maintenance and maintenance of the intelligent control system is much lower than the current systems due to the use of digital temperature sensors and power relays. Each power relay is mounted on a special socket, so replacing them in case of amortization and failure in the least possible time and at the lowest cost.

 

3 - Ability to control the various parts of the heating system .

 

In the intelligent control system, the task of controlling all parts of the central heating installation is controlled by the microprocessor. The flow temperature of the water in all the water paths as well as the outside air temperature, the status of the switch on the ignition of the burner and any of the water pumps are at the moment under the control of the microprocessor. Therefore, this control system allows for the overall co-ordination of the heating process to achieve the highest efficiency and minimize energy consumption.

 

4. Control and management of energy consumption, including thermal and electrical energy.

 

An intelligent control system with one hour and internal calendars can control energy consumption, including thermal and electrical energy, according to the current date and time. Intelligent control system, according to the user's desired requirements (including hot water temperature and hot water temperature), and with regard to outside temperature, will automatically control the operating conditions of the heating system to manage energy consumption And increase the efficiency of the heating system. The user must define the temperature of the hot water and the temperature of the hot water heatsink for the temperate seasons of the year (when the outside air temperature is between 20 and 25 ° C) for the intelligent control system.

 

In the warm seasons that do not require indoor air heating, the intelligent control system will automatically shut off the boiler water pump.It will also automatically reduce the temperature of hot water.

 

Intelligent control system during the cold seasons controls and regulates the temperature of hot water radiators in relation to ambient air temperature. In cooler days, the temperature of the radiators is higher than the heat needed for the indoor environment to be desirable.Also, by changing the ambient temperature outside the day and night, the intelligent control system by setting the hot water temperature of the radiators will provide the best heating conditions for the residents and manage energy consumption. Also, the temperature of hot water will be automatically adjusted to outside temperature.

 

5. Scheduled heating system operation.

 

The intelligent control system is able to change the heating system settings at certain times and at a specified time, in accordance with a defined scheduling program defined by the user, in order to maximize energy consumption. This scheduled program is based on the calendar and clock of the intelligent control system. On the calendar, working days, weekend days, official holidays (such as Norooz Holidays, etc.) are automatically defined, as well as official holidays, lunar holidays. . . It can also be defined manually and case-by-case.

 

This scheduler is customizable by the user according to the location of the cooling system (home, office, workshop, etc.). The intelligent control system can break the week into 5 business days (Saturday to Wednesday) and two days off (Thursday and Friday) and divide up to 8 different time periods per day, and in each of these intervals According to the requirements of the user, according to the working days or holidays, the customer will adjust and control the central heating system. Official holidays will be considered as weekends. Hours of start and end of each period, with the temperature of hot water and the temperature of hot water and the maximum number of people in the building can be defined by the user at any time interval.

 

6 - Automatic switch off of hot water water pump.

 

During the hours of sleeping and resting the inhabitants of the residential buildings and the hours of shutting down of office buildings, manufacturing facilities and workshops, the flow of hot water to ensure the availability of hot water in the intake can not be justified and efficient, and only causes energy loss. Therefore, the intelligent control system is able to completely shut off the hot water pump in this time as defined in the control program.

 

7 - Schedule and announce the various heating system services.

 

Considering that the smart control system has an internal clock and calendar, it can be used to schedule and announce the need to perform different heating system maintenance periods. For example, with the onset of the heating season (say, May 15), the intelligent control system automatically activates user's audio and optical alarms to close the flush switches of hot water in different classes. With the end of the heating season and the beginning of the cold season, (for example, November 15th), the intelligent control system will automatically notify the user by activated the acoustic and optical alarms, the service time of the hot water pump, the hot water and the opening of the respective return lag. Made At one month's expiry, the user for monthly services includes bearing lubrication, visiting and controlling the status of the various parts of the central heating plant. . . It will be alerted by audio and optical alarms. Expeditions and schedules for periodic maintenance of the heating system, operating hours and activation of the heating system of the radiator. . . In the configuration section of the software program, the control system is defined and can be changed.

 

8 - Risk warning in the event of a gas leak and smoke in the central heating installation.

 

The intelligent control system is equipped with a gas-smoke sensor. In the event of leakage and the presence of urban gas or smoke in the environment of the central heating installation, the sensor will detect them and will provide the intelligent control system by users and residents of the user's audio and optical alarms. The sensor is very sensitive and can detect very small amounts of gas or smoke. The sensitivity of the sensor is defined and can be changed in the control panel software configuration settings.

 

9 - Automation of central heating equipment installations.

 

The intelligent control system is equipped with several digital reservation inputs and outputs, multiple analogue call inputs and multiple outbound feeds. These inputs and outputs make it possible to adapt the intelligent control system to all central heating installations, as well as the need for automation, as part of the engine equipment. For example, the handwheels can be used to replace the hot water sweeping routes of the radiators of the radiator with electrical types. In this case, the intelligent control system will be able to automatically open or close the valves according to the scheduled schedule. For example, with the onset of the heating season (for example, May 15), the intelligent control system can automatically shut off the hot and cold water switches of the various classes and end the heating season and the beginning of the cold season (for example, 15th of November). To open. The use of each of these inputs and outputs of reservation, availability and schedules related and. . . In the configuration section of the software program, the control system is defined and can be changed.

 

 

Smart control and energy management systems How to use central heating systems (hot water) to reduce gas consumption and costs?

 

This machine is a fully automated control system equipped with a small microcomputer with a set of highly accurate digital sensors and industrial steering relays that replace the electromechanical thermostats in the central heating plant with hot water (heating).Microcomputer This system has an internal clock and calendar that is scheduled for weekdays, all official holidays and weekends. The smart control system separates each week according to its internal calendar to working days or shutdowns, and according to the location of the installation site for the intelligent residential or office control system, specific and predefined settings for setting the hot water temperature of the boiler, The tank is equipped with two types of sanitary, hot water and circulating water, and hot water for radiators of radiators.

 

The intelligent control system, with the help of its built-in clock, is able to get up to 10 different time intervals every day, and according to the location of the installation site of the intelligent residential or office control system, at any given time, specific and predetermined settings for Setting the hot water temperature of the boiler, its reservoir is two-way hygienic, hot water, circulation water and hot water boilers.

 

The intelligent control and energy management system of the boiler has a digital sensor for measuring ambient air temperature (open air).This sensor measures the outside air temperature continuously and, based on the measured temperature, provides the best settings for the various equipment of the heating system with hot water. In this way, in different seasons of the year and during different hours of the day, the temperature of hot water and hot water will be adjusted to the ambient temperature of the outside environment, in order to maximize energy saving, provide the comfort and tranquility of all inhabitants of the building. To make

 

The main task of the intelligent control and control system is to optimize energy consumption through intelligent and targeted control of the water temperature of the various parts of the heating system in terms of ambient air temperature and energy consumption in different time periods.

For example, in a residential building, the residents are asleep at about 6 in the morning, they bathe, and are provided to get out of the house. The staff and students left the building until about 9:00 am and the building has the smallest number of residents until the 14th hour students and some workers return home. From about 16 to 20, all residents are gradually returning to the building, requiring bathing, washing, cooking. . . Are . At about noon, from 22:00 to 24:00, residents will be prepared for nightly sleep, and from 24:00 until 06:00, the amount of hot water will be reduced to a minimum.

 

During the holidays this process will be completely different for a residential building. In an office building, the energy consumption process is quite different and requires different planning. The intelligent control system, using a small microcomputer and its own clock and calendar, manages energy consumption in a way that minimizes energy consumption while providing comfort and tranquility for all residents.

 

In order to get acquainted with the impact of this system on saving natural gas consumption and its role in reducing the cost of gas, we draw the following from the following example:

 

Assume that a single unit of housing has consumed 210 cubic meters of natural gas per month. The tariff table for the sale of gas is based on the average monthly consumption of each unit that is calculated as an increment.

 

Therefore, in normal cost, the gas price of this subscriber who consumes 5 steps will be calculated as follows:

 

234500 Rls = (2000 x 15) + (1600 x 50) + (1200 x 50) + (900 x 50) + (700 x 45) = Gas Price

 

If the intelligent control system and energy management and at least 15% savings are used, the combined gas consumption will decrease to 178 cubic meters (4 steps). Therefore, the cost of gas for the same subscriber during the said period will be calculated as follows:

 

189300 Rials = (1600 x 33) + (1200 x 50) + (900 x 50) + (700 x 45) = Gas Price

 

This means a 20% reduction in the cost of gas for one month. Of course, with the consumption of more stairs (high-consumption subscribers), especially in the cold seasons, this much greater savings and a role in reducing gas costs. In the case of office buildings that can minimize the temperature of hot water and indoor temperatures by the intelligent control system during holidays and non-work hours throughout the day, the savings in gas consumption will be at least 40%. In the example above, this savings will reduce the consumption of gas to 126 cubic feet (3 steps), resulting in a gas price of 50% lower than the equivalent of 113700 Rials.

 

Advantages and facilities of intelligent control and energy management system Hot water heating plants (radiators):

 

1 - Reduce the cost of consumed electricity by managing energy consumption and reducing the operating time of pumps and radiators.

2 - Increasing the life of the heating system equipment, thereby reducing maintenance and maintenance costs.

3. Reduce heating energy revenues through energy management at different time intervals.

4 - Easy and fast installation in less than 2 hours, without the need to cut off the water and disturb the heating system and cool down the water.

5 - Equipped with natural gas detector sensor, flammable materials such as alcohol, gasoline, thinner, smoke and so on. . . And alert audio alarms (alarms) and disables system functionality to hazard and user status checking.

6- Error notification by audio alarms if the temperature of water in different parts of the system exceeds the permissible limits and disabling the system's function until the risk and user status check.

7 - Error notification by audio alarms in the event of failure or termination of any of the temperature sensors and disabling the system function until the hazard is resolved and the user is checking the status.

8 - Equipped with a backup battery to keep the calendar and clock and system settings in case of power failure up to 6 hours.

9 - Equipped with scheduling for periodic services and announcement of the specified time as audio alarms.

10 - Equipped with timed scheduling for open and closed flush valves, water pump and radiator. . . Automatically and manually by announcing promptly specified audio alarms.

11 - Equipped with 3 reserve relay relays for controlling accessories such as pressure pumps, pressure regulators, and electric control valves. . .

12 - Equipped with a display of the current status of the system as a schematic (Mimic).

13 - Equipped with a numeric keypad, with separate operating keys for ease of use of the system.

14 - View all system information on the LCD screen.

15 - Equipped with RS232 Serial Port for full monturation of the status of the heating and data storage system (Data Logging) including the water temperature of the various parts, the status of the switches on and off, the boiler torch, the preset temperatures, the status of the alarm And . . . .

16 - Planning the device through PC PC and serial cable (RS232 Serial Port).

17 - PC computer program with serial communication cable (RS232 Serial Port) for planning, montuoring and storage of information.

18 - One year warranty and 10 years after-sales service.