Thanks to the automated heat supply control unit (HCU), installed in the basement of the house, residents can save from 20 to 30 percent of heat, depending on technical condition at home. This equipment is considered one of the most effective solutions in reducing the cost of housing and communal services.
The introduction of AMS significantly reduces the monthly payments of residents of both multi-apartment and private households. The equipment allows you to track fluctuations in the external air temperature and controls the amount and temperature of the coolant supplied to the house. To control the work in real time, the equipment is equipped with a dispatching system. The operation of this system makes it possible to avoid excessive supply of coolant or the so-called "overheating", which residents often complain about with the advent of the first warm days.
Heat suppliers are forced to supply more energy to the home than is needed, because the equipment in boiler rooms does not allow a quick response to changes in outdoor temperature. To lower the temperature in apartments, many people open windows, thereby heating the street at their own expense and at the expense of their neighbors. The overheating effect is especially visible through a thermal camera, and the effects are reflected in heating bills that are about 30 percent higher.
AUU is expensive equipment, but there is a mechanism that provides for its installation at the expense of the energy service company. At the same time, investors are compensated for the costs of purchasing and installing equipment at the expense of the resulting savings. The contract is concluded for a period of 3 to 5 years, depending on the volume of consumption and the amount of savings achieved. After the expiration of the contract installed equipment free of charge transferred to the property of residents in good working condition.
And most importantly, residents will never have to pay for excess heat at their own expense, regardless of the street temperature or its fluctuations.
What you need to do to install the ACU for free
- It is necessary to carry out general meeting homeowners to conclude an agreement with representatives of an energy service company.
- The energy service company, on the basis of the decision of the meeting of residents, signs a contract for free installation energy saving equipment.
- The energy service company carries out work on the installation of automatic control units and related energy-saving measures.
- For the duration of the contract, the amount of payment for heating will remain the same, but the savings due to rational heat consumption will be distributed between residents and the energy service company: part of the income will go to compensate the company's costs, and part to the residents of the building.
- At the end of the term of the contract, all the savings received will remain with the tenants.
26.08.2010
The automated control unit for the heating system, manufactured by SANTEKHPROM OJSC, was entered in the Register new technology used in the construction (reconstruction) of objects of the city order.
On July 26, 2010, at a meeting of the Expert Commission on New Equipment, it was decided to include the automated heating system control unit, manufactured by OJSC SANTEKHPROM, into the Register of New Equipment Used in the Construction (Reconstruction) of City Order Facilities in Moscow.
Quick reference:
Automated control unit (AUU) is designed for automatic regulation parameters of the coolant (temperature, pressure) entering the heating system of the residential part apartment buildings and other buildings. Regulation is made in accordance with the outdoor temperature. With a decrease in air temperature, the temperature of the heat carrier increases; with an increase in air temperature, the temperature of the heat carrier entering the heating system of the residential part of buildings decreases. Also, with the use of ACU, the estimated pressure drop between the supply and return lines of the heating systems of the residential part of the building is provided.
ACU is a prefabricated unit, fully assembled and ready for installation on site.
At present, State Unitary Enterprise MNIITEP, LLC Danfoss and JSC SANTEKHPROM have determined the range of AC units, which includes 150 types, which can be divided according to the heat load and equipment installation scheme, and serial production of AC units in the form of blocks has been organized at the SANTEKHPROM plant factory readiness.
The principle of operation of the ACU is as follows. The coolant coming from the central heating station moves through the ACU. As part of the ACU there is a controller. It contains a pre-set temperature graph recorded on regime map. With the help of sensors, the actual and set temperature of the coolant is compared. With the help of pumps, the coolant from the return line is mixed with the coolant from the supply line. The supply of heat carrier is regulated by means of a control valve. The differential pressure in the heating system is controlled by a differential pressure controller.
The ACU consists of the following main components:
mixing pump
motorized control valve
differential pressure controller
magnetic filter
check valve
steel ball valves
temperature sensors
Pressure Sensors
pressure gauges
thermometers
outdoor temperature sensor
controller
electrical control cabinet
In two five-story houses in the Metrogorodok district, as part of a selective overhaul of engineering systems, the Prefecture of the Eastern Administrative District of Moscow, SANTEKHPROM OJSC and Danfoss LLC installed ACU. They replaced the elevator nodes. The heaters were also replaced. On new heating appliances automatic thermostats were installed. On the risers of the heating system were installed balancing valves. In the subsequent heating season, monitoring of heat consumption in these houses was carried out:
- The actual consumption of thermal energy in the house amounted to 425.7 Gcal;
- The normative consumption of thermal energy amounted to 673.7 Gcal;
- The savings amounted to 248 Gcal or 37%.
Another house located in the same area and powered by the same CHP as the first house showed the following results:
- The actual consumption of thermal energy in the house amounted to 339.8 Gcal;
- The normative consumption of thermal energy amounted to 493.8 Gcal;
- The savings amounted to 154 Gcal or 31%.
under the overhaul program residential buildings in the city of Moscow in 2008 - 2010 it is planned to install more than 1000 automatic control units. As of July 2010, about 600 ACUs have been installed in various districts of the city of Moscow. According to the information of the head of the municipal economy complex, the results of monitoring of residential buildings in the past heating season showed that the savings in thermal energy consumption is up to 34%.
Thus, the savings in the consumption of thermal energy in residential buildings can be achieved, in particular, if the following engineering equipment is used:
AUU factory made.
balancing valves.
Heating appliances with built-in automatic thermostats.
Extract from the Register of new equipment according to Protocol No. 3/2010 of the Expert Commission dated July 26, 2010
Name of the sample of new technology: Automated control unit of the heating system (AUU CO).
Purpose and scope: AUU for heating systems with regulation (maintenance) of temperature and pressure parameters of the coolant in heating systems. It is used in accordance with the current energy saving standards when connecting residential and public buildings to the central heating station instead elevator node management. For public buildings it is possible to regulate ventilation and air conditioning parameters.
Developer, manufacturer, supplier: State Unitary Enterprise "MNIITEP", OJSC "SANTEKHPROM"
Year of issue: 2008
Technical characteristics (performance, power, etc.): Specifications:
B) Temperature conditions:
Local water °C without mixing, return pump with three-way valve:
Superheated water °C with mixing, inlet pump with differential pressure controller:
Superheated water °C with mixing, return pump:
Operating conditions. Warranty period: Operating conditions:
A) exhaust ventilation;
B) Electricity ( uninterrupted supply electricity 220V);
C) The outside air sensor should be placed outside the building on the north wall;
D) Backup pump (to prevent freezing of the heating system in the event of a breakdown of the main pump);
D) Separate room, possibly basement type, with a door and a lock (to restrict access by unauthorized persons).
The temperature in the room should be in the range from +1 to +30 ° C.
Periodic inspection of the system by qualified service personnel.
Service life: 5 years without repair.
Price per unit, rub. (according to the applicant): Depends on the scheme 1-12 and the load and ranges from 117,392 rubles. without VAT up to 1,367,844 rubles. without VAT
Performance indicators. Payback: Allows you to reduce the consumption of thermal energy by 50%. Planned profit on energy saving resources. Payback is on average 2 years.
Automated control unit of the heating system is a kind of individual heat point and is designed to control the parameters of the coolant in the heating system, depending on the outdoor temperature and the operating conditions of buildings.
The unit consists of a corrective pump, an electronic temperature controller that maintains a predetermined temperature schedule, and differential pressure and flow controllers. And structurally, these are pipeline blocks mounted on a metal support frame, including a pump, control valves, elements of electric drives and automation, instrumentation, filters, mud collectors.
AT automated control unit for the heating system control elements of the Danfoss company were installed, the pump - of the Grundfoss company. The complete set of control units is made taking into account the recommendations of Danfoss specialists, who provide consulting services when developing these nodes.
The node works as follows. When conditions occur, when the temperature in the heating network exceeds the required one, the electronic regulator turns on the pump, and it adds as much coolant from the return pipe to the heating system as necessary to maintain the set temperature. The hydraulic water regulator, in turn, is covered, reducing the supply of network water.
Working mode automated heating system control unit in winter, round the clock, the temperature is maintained in accordance with the temperature schedule with correction for the return water temperature.
At the request of the customer, a mode for reducing the temperature in heated rooms at night, on weekends and holidays which results in significant savings.
A decrease in air temperature in residential buildings at night by 2-3°C does not worsen sanitary and hygienic conditions and at the same time saves 4-5%. In industrial and administrative-public buildings, heat savings by lowering the temperature during non-working hours is achieved to an even greater extent. The temperature during non-working hours can be maintained at the level of 10-12 °C. Total heat savings with automatic control can be up to 25% annual expense. During the summer automated node does not work.
A promising approach to resolving the current situation is the commissioning of automated heat points with a commercial heat metering unit, which reflects the actual consumption of heat energy by the consumer and allows you to track the current and total heat consumption for a given period of time.
Target audience, solutions:
Commissioning of automated heat points with a commercial heat metering unit allows solving the following tasks:
JSC Energo:
- increased reliability of equipment operation, as a result, reduction of accidents and means for their elimination;
- accuracy of heating network adjustment;
- reducing the cost of water treatment;
- reduction of repair sites;
- high degree of dispatching and archiving.
housing and communal services, municipal management enterprise (MUP), management company (MC):
- no need for constant plumbing and operator intervention in the operation of the heating point;
- decrease service personnel;
- payment for actual consumption thermal energy no loss;
- reduction of losses for feeding the system;
- release of free space;
- durability and high maintainability;
- comfort and ease of heat load management. Design organizations:
- strict compliance with the terms of reference;
- wide selection circuit solutions;
- high degree of automation;
- big choice heating point configurations engineering equipment;
- high energy efficiency. Industrial enterprises:
- a high degree of redundancy, especially important for continuous technological processes;
- accounting and exact observance of high-tech processes;
- the possibility of using condensate in the presence of process steam;
- temperature control by workshops;
- adjustable selection of hot water and steam;
- decrease in recharge, etc.
Description
Heat points are divided into:
- individual heat points (ITP) used to connect heating, ventilation, hot water supply systems and technological heat-using installations of one building or part of it;
- central heating substations (CHPs) performing the same functions as ITPs for two or more buildings.
One of the priority activities of CJSC "TeploKomplektMontazh" is the manufacture of block automated heat points using modern technologies, equipment and materials.
More and more wide application they find heat points manufactured on a single frame in a modular design of high prefabrication called block, hereinafter BTP. BTPs are a complete factory product, designed to transfer thermal energy from a thermal power plant or boiler house to a heating, ventilation and hot water supply system. The BTP includes the following equipment: heat exchangers, a controller (electrical control panel), direct-acting regulators, electrically driven control valves, pumps, instrumentation (KIP), shut-off valves, etc. Instrumentation and sensors provide measurement and control of coolant parameters and issue signals to the controller about parameters going beyond the limits allowed values. The controller allows you to control the following BTP systems in automatic and manual mode:
Regulation of flow, temperature and pressure of the heat carrier from the heating network in accordance with the technical conditions of heat supply;
Temperature control of the heat carrier supplied to the heating system, taking into account the outdoor temperature, time of day and working day;
Heating water for hot water supply and maintaining the temperature within the limits of sanitary standards;
Protection of the circuits of the heating system and hot water supply from emptying during scheduled shutdowns for repairs or accidents in the networks;
Accumulation DHW water, which allows to compensate for peak consumption during peak hours;
- frequency regulation of the drive by pumps and protection against "dry running";
- control, notification and archiving of emergency situations, etc.
The performance of the BTP varies depending on the ones used in each separate case connection schemes for heat consumption systems, type of heat supply system, as well as specific specifications project and customer requirements.
Schemes of BTP connections to heat networks
On fig. 1-3 shows the most common schemes for connecting heat points to heat networks.
Application of shell and tube or plate heat exchangers in BTP?
The substations of most buildings are usually equipped with shell-and-tube heat exchangers and direct-acting hydraulic regulators. In most cases, this equipment has exhausted its resource, and also operates in modes that do not correspond to the calculated ones. The latter circumstance is due to the fact that the actual heat loads are currently maintained at a level significantly lower than the design one. The control equipment does not perform its functions in case of significant deviations from the design mode.
When reconstructing heat supply systems, it is recommended to use modern equipment, which is compact and provides for work in full automatic mode and providing savings of up to 30% of energy, compared with the equipment used in the 60-70s. In modern heat points, an independent scheme for connecting heating and hot water supply systems is usually used, made on the basis of plate heat exchangers. To control thermal processes are used electronic regulators and specialized controllers. Modern plate heat exchangers are several times lighter and smaller than shell-and-tube heat exchangers of the same capacity. The compactness and low weight of plate heat exchangers greatly facilitate installation, maintenance and Maintenance heating equipment.
|
|  |
Recommendations for the selection of shell-and-tube and plate heat exchangers are given in SP 41-101-95. Design of thermal points. The calculation of plate heat exchangers is based on a system of criterion equations. However, before proceeding with the calculation of the heat exchanger, it is necessary to calculate the optimal distribution of the DHW load between the stages of the heaters and temperature regime each stage, taking into account the method of regulating the heat supply from the heat source and the schemes for connecting DHW heaters.
The company CJSC "TeploKomplektMontazh" has its own proven program of thermal and hydraulic calculation, allowing you to select lamellar brazed and collapsible heat exchangers Funke, which fully meet the requirements of the customer.
BTP produced by CJSC "TeploKomplektMontazh"
Collapsible plate heat exchangers Funke who excelled in hard Russian conditions. They are reliable, easy to maintain and durable. Heat meters are used as a unit for commercial heat metering, which have an interface output to the upper control level and allow reading the consumed amount of heat. To maintain the set temperature in the hot water supply system, as well as to control the temperature of the coolant in the heating system, a two-circuit regulator is used. The control of the pumps, data collection from the heat meter, control of the regulator, control of the general condition of the BTP, communication with the upper level of control (dispatching) is taken over by the controller, which is compatible with a personal computer.
The regulator has two independent circuits for regulating the temperature of heat carriers. One provides temperature control in the heating system depending on the schedule, taking into account the outdoor temperature, time of day, day of the week, etc. The other maintains the set temperature in the hot water supply system. You can work with the device both locally, using the built-in keyboard and display panel, and remotely via the interface communication line.
The controller has several discrete inputs and outputs. Discrete inputs are used to receive signals from sensors related to pump operation, penetration into the premises of the BTP, fire, flooding, etc. All this information is delivered to the upper dispatching level. The discrete outputs of the controller control the operation of pumps and regulators according to any user algorithms specified at the design stage. It is possible to change these algorithms from the top management level.
The controller can be programmed to work with a heat meter, providing data on heat consumption in control room. Through it, communication with the regulator is carried out. All devices and communication equipment mounted in small closet management. Its placement is determined at the design stage.
In the vast majority of cases, when reconstructing old heat supply systems and creating new ones, it is advisable to use BTP. BTP, being assembled and tested in the factory, are distinguished by reliability. Installation of equipment is simplified and cheaper, which ultimately reduces the overall cost of renovation or new construction. Each BTP project of CJSC "TeploKomplektMontazh" is individual and takes into account all the features of the customer's heating point: the structure of heat consumption, hydraulic resistance, schematic solutions of heat points, permissible pressure losses in heat exchangers, room dimensions, quality tap water and much more.
Types of activity of CJSC "TeploKomplektMontazh" in the field of BTP
CJSC "TeploKomplektMontazh" performs the following types works in the field of BTP:
- drafting terms of reference for the BTP project;
- BTP design;
- coordination of technical solutions for BTP projects;
- engineering support and project support;
- selection of the optimal option for equipment and automation of the BTP, taking into account all the requirements of the customer;
- installation of BTP;
- conducting commissioning;
- putting the heat point into operation;
- warranty and post-warranty maintenance of the heating point.
CJSC "TeploKomplektMontazh" successfully develops energy efficient systems heat supply, engineering systems, and is also engaged in design, installation, reconstruction, automation, provides warranty and post-warranty maintenance of the BTP. A flexible system of discounts and a wide range of components distinguish BTP CJSC "TeploKomplektMontazh" from others. BTP CJSC "TeploKomplektMontazh" is a way to reduce energy costs and ensure maximum comfort.
Sincerely, ZAO
"TeplokomplektMontazh"
A modern heating control system allows you to implement the most complex and advanced schemes and programs for adjusting equipment operation modes, achieve significant energy savings, provide remote control heating. We want to consider the heating control unit in terms of its design and operational features and advantages.
Automatic control unit
Purpose
Knot automatic control- this is an individual heating point designed to control the parameters of the coolant circulating in the heating system, depending on the temperature indicators in the room, on the street, in the supply and return pipelines of the circuit.
In addition, the system allows you to implement protection against emergency situations, switching equipment operation modes, GSM heating control. In the event of a breakdown or an emergency situation, the module is able to notify all subscribers included in the mailing list using SMS messages.
However, this is far from full list functions.
The control node can provide:
- Modes and parameters of operation, a given coolant circulation rate;
- Monitoring the maintenance and implementation of the specified temperature chart supply and return pipeline. This allows you to protect the system from overheating and hypothermia;
- Maintaining a given constant pressure drop at the supply and return inputs to the building, which allows normal operation of all automation in normal mode;
- thin and rough cleaning coolant;
- Visual control of all performance indicators of the system: temperatures in key areas, pressure difference at the inlet and outlet of the unit, set operating mode, alarms;
- Remote control of heating by phone and via the Internet;
- Remote control of the premises, alarm, entrance doors and gates with additional sensors.
Important!
To install such a system, the boiler and other equipment must be adapted for electronic control.
Old frames with mechanical latches will not work with this scheme.
Device and principle of operation
The photo shows a 3-D model of the control unit.
Into any automatic system management includes the following nodes:
- Sensors and sensors that collect the necessary data in various places in the system;
- Controllers and processors that compare the data received from the sensors with the values dictated by the instruction (program) recorded on the memory card, make a decision and, based on it, issue commands to the executing mechanisms;
- Execution mechanisms that receive commands from controllers and execute simple steps- shut off taps and valves, increase the power of the units, switch modes, perform emergency shutdowns of broken units.
The sensors are pressure and temperature sensors, as well as any additional sensors that allow you to control different processes. The most important are temperature sensors for the supply and return flow of the coolant, indoor and outdoor temperature sensors, as well as pressure sensors at the inlet to the system.
The role of the controller is played by a low-power computer that reads information from all sensors. The computer memory card contains a program that determines the temperature regimes.
The controller compares the received values with the preset ones, and, if necessary, decides to make changes: increasing the coolant supply to a particular circuit, turning off the boiler or transferring it to another operating mode, etc.
Upon making a decision, the controller sends a control signal to one or another actuator: switching relay, valve or damper servo drive, switch or boiler electronics. Depending on the given program, the GSM heating control module can send messages to the owner about a particular event, and after waiting for a response, take certain measures.
Heating control in a country house via GSM is carried out using a special module built into the computer.
This module includes the following elements:
- Slot for switching SIM-card;
- Power supply and battery;
- GSM modem;
- Antenna connector;
- LAN port for connecting to an Internet provider;
- Microprocessor;
- Memory card;
- USB connector for setup and configuration;
- LED indicators or liquid crystal display;
- Contact group with inputs and outputs for collecting data and sending control signals.
Important!
Together with the module for GSM control, a software for installation on operating system mobile phone.
The program will help organize remote communication between the controller and the operator.
Advantages
What are the benefits of using an automatic heating control unit?
A modern controller with a communication module allows you to get the following advantages and benefits:
- Fine-tuning the system in real time allows you to achieve maximum savings with the right level of comfort;
- You can achieve exactly the temperature and climatic parameters of the room that you want, and for this it is enough just to set the values of the desired temperatures;
- The system of instant notification of emergency modes and abnormal events significantly increases the reliability and safety of work;
- You have the opportunity to leave the house with the heating working and monitor its condition at a distance, as well as control the operating modes, turn the equipment on or off remotely;
- Winter visit to Vacation home when the heating is off, it requires you to go into a cold room, melt the unit and wait a few hours until the room warms up. Now you can give a command to turn on in advance and not waste time.
You can assemble and connect the control system yourself - no permits and approvals are required for this. The job is easy to do by following the manufacturer's instructions. The price of a kit can vary from 4 to 40 thousand rubles, depending on the configuration and the manufacturer.
Important!
Most modules have connectors for connecting additional sensors, with which you can organize control over the opening of windows and doors, listening or monitoring, and other useful functions.
Conclusion
Control and management modern systems heating can be carried out software tools with remote participation of the operator. Communication can be carried out by digital cellular communication GSM or the Internet. You can find more information in our video.
We have many years of experience and a detailed understanding of the specifics of working with heating networks, including overhaul which gives us the opportunity to do the work quickly, efficiently and on time.
As part of the city's energy saving program, the company is engaged in the design, installation and commissioning of automated control units (ACU), which provide savings in thermal energy in the system central heating houses. DKR of Moscow within the framework of the city energy saving program during major repairs recommends our company as an installer of automatic control units. When installing ACU, the company installs a prefabricated unit own production, which has a certificate of the State Standard of Russia, and we also use equipment of domestic and foreign production.
The equipment installed by us is located in all districts of Moscow. Our company performs full complex works related to the design, manufacture, installation, commissioning and repair of thermal power facilities of any complexity.
To date, we have produced, installed and launched more than 1680 ACUs in Moscow and Moscow Region.
We are confident in the quality of our work and are ready, at your request, to arrange an excursion for you to any of our objects of your choice. You can also visit our production, meet with our specialists and you will have no doubts about the professionalism of the company.
Our facilities have been visited by high-ranking leaders of the city of Moscow more than once.
The mayor of Moscow, Sergei Sobyanin, examined two houses on Nakhimovsky Prospekt, which were undergoing major repairs. Sergei Sobyanin went down to the basement of the house, where he examined the automated central heating control unit manufactured by our company. He highly appreciated the quality of the equipment manufactured and its operation.
Our company works with 106 management companies in Moscow and the nearest suburbs. Currently, the company has more than 800 ACUs for servicing, and we are constantly working to conclude new contracts with the management company.
We design, assemble, manufacture, install, commission and we serve.
- Automated Control Units of the Central Heating System (AUU CH)
- Thermal Energy Metering Units (UUTE)
- TsTP, ITP, BTP
- Dispatch systems
LLC "SSK" has its own production base, which is equipped with all the necessary mechanisms for operation, special devices, measuring instruments.
The company has round the clock emergency service and provides a full range of warranty and post-warranty work on equipment for the entire period of cooperation. We have all the relevant documentation and all permits, employees constantly undergo specialized training.
Given the well-coordinated work, a well-thought-out maintenance schedule and production capacity, we can serve up to 1000 objects every month.
Our advantages
- More than 8 years in the market of production and Maintenance ayy,
- More than 800 ACUs for service in Moscow,
- Service partner of Danfoss, Grundfos, Wilo,
- We provide a 5-year warranty for Danfoss, Grundfos, Wilo products,
- Own production base,
- Certified production and products,
- 24/7 service and emergency team,
- The minimum terms of installation, adjustment and repair of equipment,
- We serve UUTE in Moscow (reading, repair, installation, verification).
Our company is interested in long-term and mutually beneficial cooperation and partnerships.
