Heat meters for heating in the apartment

Payment for heating on an individual meter will cost several times cheaper than reimbursement for some incredible rates, most of which are heat losses when transporting water from the CHPP to the house.

For this reason, the installation of heat meters for heating is a priority task, which any homeowner must solve. Moreover, this task is very easy to solve, since the modern market of control and measuring devices is literally packed with an abundance of models of heat meters.

Benefits

If you decide to use the meter, then as a result you will pay for the heating provided to you strictly at a fixed rate and only the amount that exactly corresponds to the meter reading. In this case, it will be possible to regulate the access of heat to the house or apartment, taking into account the weather conditions. This action can be carried out either manually by means of a special locking device or in an automatic mode by means of a special heat control system.

Design Features

Heat meters for heating consist of the following main elements:

• The computational module;
• Two sensors that record temperature;
• Flow sensor.

These elements are combined into a single plastic casing, complete with spigots for the subsequent connection of the meter to the pipelines. To date, many heat meters for heating are equipped with autonomous power supply, which allows these devices to function without a source of electrical energy. In other words, if your apartment or house is permanently left without electricity, the meter will take into account the heat.

In addition, any meter must have a certificate and a passport. In the documentation, the manufacturer must indicate the date of the first verification.

The principle of the heat meter for heating

This equipment is equipped with two sensors, one of which is a temperature sensor, the second - a flow. The first task is to measure the temperature, the second sensor calculates the amount of heat consumed.

The main component of any meter is the heat calculator, which is a kind of calculator, which gives the results of the calculation. For this, the amount of heat spent on the meter is multiplied by the temperature. As a result, you get testimonies that you need to pay. Here's how the heat meter works for heating.

Classification by constructive scheme

Currently, there is an incredible number of models of heating meters, which combines a similar operating principle, the difference consists only in the amount of information stored in their archives and a set of additional functions. Let's consider the main types of these devices.

Mechanical

Mechanical heat meters for heating account for the amount of coolant entering the system. In such equipment, an impeller is used as a reader, which is located in the meter body. When the coolant moves through the pipelines, the impeller rotates, which transmits the torque to the shaft with special drums. On the surface of the drums there are figures. However, after a few seasons, the impeller is clogged with rust and scale particles.

Electromagnetic

Heat meters for heating in an apartment of this type fix the movement of the coolant in the housing with the deviation of the electromagnetic field vector. In general, this device is an improved version of the mechanical counter, inert to the degree and quality of contamination of the coolant. The accuracy of electromagnetic equipment is an order of magnitude higher than its mechanical counterpart. For this reason, these devices are gradually replacing obsolete meters of a mechanical type.

Vortex

Vortex devices fix turbulence in the flow of circulating fluid that is washing the artificially created obstacle. These heat meters for heating in the apartment on the battery can be mounted both in a horizontal wiring near the heater, and in a vertical riser. Such equipment with the same efficiency functions as household and utility meters.

Ultrasound

Ultrasonic heat meters for heating fix the flow velocity (sound wave), which moves along a section of known length. This equipment can work endlessly due to the lack of moving elements. The only drawback of the ultrasonic meter is its high sensitivity to the quality of the coolant. It reacts to scale, scale and even air bubbles. For this reason, such devices are recommended to be installed before the replaceable filter.

What affects the accuracy of the device

When calculating the amount of heat consumed, the error of the counter depends on the errors of the temperature sensors, the flowmeter and the calculator that processes the collected quantities.

As a rule, devices with an allowable error in the calculation of the consumed heat in the range of ± 6 to ± 10% are used for apartment accounting.

The actual error may be higher than the basic error, which is due to the technical characteristics of the constituent elements. The accuracy of the heat meter increases in the following situations:

1. Installation was performed in violation of the requirements of the manufacturers (as a rule, manufacturers withdraw their warranty obligations, if the installation of the counter was made by an unlicensed organization).
2. The flow rate of the heat carrier is much lower than the minimum flow rate, which is indicated in the technical characteristics of the device.
3. The difference in the temperature of the coolant in the supply and return lines is less than 3 ° C.

Also worth paying attention to fans of magnetic braking counters on the fact that modern equipment has protection from the magnetic field.

Installation

Any installation work of the heating system, including the installation of a heat meter, should only be performed by specialists. To install the meter for heating, you will need the following:

1. Order project documentation.
2. Agree the package of documents with the municipal service and get permission to install the meter.
3. With the approval of the commission, the project is implemented, and heat meters for heating in the apartment take their place.
4. In conclusion, the meter must be registered in the municipal service (otherwise it is considered invalid), and only after that give it to use.

After the above procedures, it is necessary to call specialists who must do the following:

1. Develop a project.
2. Carry out the coordination of the documentation.
3. Install the meter.
4. Officially register the equipment.
5. To hand over the meter for use and to transfer the supervisory organization to it in charge.

Conclusion

Summarizing all of the above, it is worth paying special attention to the fact that any meter (individual, communal) must have a passport and a certificate that will confirm its compliance with the norms of operation. Also, once in four years, utility utilities should check the meters. The note on the results of the inspection should be reflected in the passport of the measuring equipment.