RU2578046C2 - Method for calibration and verification of measuring system of account unit of heat energy and heat carrier taking into account perturbations - Google Patents

Abstract

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment and can be used for detecting unauthorized leakages of thermal energy. Disclosed is a method of calibrating and checking measurement system of unit for metering thermal energy and heat carrier with disturbances, based on switching of coolant flow with supply pipeline through reference calibration unit on return pipeline and disconnection of measuring system from a consumption object. In heat carrier flow is introduced an additional reference calibration unit, controlled non-uniformity of temperature field of heating system inside object and adjacent objects without meters. Readings of standard calibration units are compared to each other and nature of non-uniformity of change of temperature fields. Results of comparison and non-uniformity of fields are used to determine generation of disturbances and disconnection of object from heat on error and measurement reliability of measuring heat energy and heat carrier.

EFFECT: technical result is high reliability of results.

25 cl, 15 dwg

Description

The invention relates to measuring equipment, namely to methods and techniques for calibration and testing with intentionally introduced and random disturbances in the flow and equipment, as well as the detection of unauthorized leaks (disturbances) of thermal energy and coolant directly in operating conditions. In addition, the invention relates to means for protecting the ventilation systems of an object from rapid excessive hypothermia of radiators during calibration with the object disconnected from heating systems. The invention also relates to achieving reliability in determining the specific consumption of thermal energy for heating in accordance with GOST 31168-2003 and the goals of energy audit and energy conservation.

The well-known standard GOST R 8.642-2008 of the State system for ensuring the uniformity of measurements on "Metrological support (MO) of measuring systems (IS) of heat energy metering units" and coolant (according to the text of the standard), which establishes the main provisions for metrological support of IP at the stages of their life cycle .

According to clause 4.2 of the IS, IP includes verification or calibration.

According to clause 8.3, in the presence of specialized standards (reference flow meters, temperature and pressure calibrators) and the availability of inputs, a comprehensive calibration is carried out at the place of operation, which is preferred.

In Protocol No. 2 of the Gosstandart Scientific and Technical Commission for Metrology and Measurement Technology dated May 27, 2015, calibration of working measuring instruments in the flow in the field of heat supply is referred to as a general problem. Rosstandart offers us, the inventors, to solve the problem together with 3 metrological institutes VNIMS, VNIIM, VNIIR Gosstandart.

The standard task of complete verification of ICs at the place of operation is set, and there are no technical solutions for complete verification, especially with the control of unauthorized leaks at the place of operation due to cut-ins and heat dissipations in the standard.

In the book of Pinchevsky A.D., Semenyuk A.L. Fundamentals of certification methods for measuring information systems. - M .: Mechanical Engineering, 1986. - 52 p., The regulation of the influence of influencing quantities in determining metrological characteristics is considered. The material is theoretical in nature and the desire to solve a complex problem with the use of experimental design. In fact, an extremely complex and time-consuming task was posed, theoretically worked out, but for the actual verification of heat energy metering systems in operation due to the lack of calibration and calibration methods and devices, it is not considered and not solved.

In the above GOST R 8.642-2008 there is also a direct indication of the choice of additional errors and influencing factors:

"5.2. The nomenclature of the standardized MX IR is chosen according to the requirements. For IR ICs, the following MX should be normalized: limits of permissible error of IR in operating conditions of operation or limits of permissible basic and additional errors (or functions of the influence of external influencing factors) IR ... ".

In addition, the very work with devices in operation makes it necessary to take these influences into account and eliminate them. Not always it turns out.

The invention practically eliminates this lack of ignorance of what influences and how, and practically prevents typical errors during calibration and calibration of measuring systems.

Attempts to solve a complex problem or perform a complete verification (this is a metrological term used in the same GOST) with the study of influencing factors and an additional measurement error were made earlier.

At the same time, a wide range of significant influences is known during the installation, commissioning and operation of both IP, and, in part, the means of MO IP.

Consider them in relation to the modernization of the most perfect and used invention according to patent RU 2182320, so that gradually, step by step, from object to object, to achieve new useful results from research, training and study on the stream and eliminate their influence on the readings of devices as workers, and, above all, exemplary.

Methodically, the elimination of falsifications of electric energy metering systems is reflected in US Pat. No. 6,232,886 to "Method and Device for Counterfeit Instrument Indicator" by Schlumberger Resource Management Services, Inc, with a 1998 priority of 50 claims.

A similar elimination of falsifications of power metering systems is reflected in US Pat. No. 5,473,322 to "Hardware and Methods for Sensing Counterfeit Meters for Consumption Meters" by Schlumberger Industries, Inc, with a 1992 priority of 41 claims.

However, in these 2 patents and references they reflect the elimination of defects in metering systems only of electricity.

It’s useful to know these defects, but in the vast majority of cases they do not coincide with defects in heat energy metering systems and coolant that have at least 2 pipes, one supply and the other return coolant, as well as calibration of systems through a portable jumper with standard means, such as in patent RU 2182320 (prototype). It is the identification and elimination of non-matching defects below that is considered. Moreover, according to patent RU 2182320, a method is described for measuring thermal energy and a heat carrier directly at the object of their consumption, based on the connection of an exemplary measuring device to the coolant pipeline with the help of taps, temporary stabilization of the flow parameters, and comparison of the readings of the calibrated system with the standard tool. This patent is discussed in more detail below.

There is a method of calibration and calibration of meters and flow meters installed in the main line, which consists in sequentially passing the same stream through a verified meter, a reference meter and the original model means of a lower measurement limit (SU 1139975, IPC G01F 25/00, 1985 ) The method does not provide the necessary accuracy of the calibration of heat energy and heat carrier measurement systems, since the error in measuring the difference in flow rates and flow temperatures of the supply and return pipelines of the heat supply system, which have a very significant effect on the determination of heat energy and heat carrier, is not taken into account. These are very important components of the resulting errors in the measurement of thermal energy and the flow rate (amount) of the consumed coolant. So, with an error in measuring costs of 2%, consumption of heat carrier from the total flow of 1% (for example, in a residential building at night), the error in measuring the difference in costs, that is, the flow rate (amount) of the heat carrier consumed, becomes undefined. Similarly, the error in measuring the temperature difference across both pipelines, for example, at 0.5 degrees when the temperature difference between the supply and return flows of the coolant is 10 degrees, gives a component of the error in measuring thermal energy of 0.5: 10 × 100%, or 5%, which is unacceptable .

Other similar inventions have a similar disadvantage of malfunctioning heat meters under operating conditions at small differences in flow rates and temperatures.

The invention is known according to the copyright certificate SU 1700396, IPC 5 G01K 19/00, 02/19/1988 on "The method of calibration of heat meters and a device for its implementation" with a list of documents cited in the search report: Magdeburg Warmezahier und fhre Priifung. PTB - Miteilungen, N 5, 1969, pp. 347-354. Finnish patent No. 66491, cl. G01K 19/00, 1981. According to the heading, it focuses on the verification of the heat meter, and not on the verification of the entire assembly. This is a serious flaw.

According to the description, the invention according to the copyright certificate SU 1700396 relates to thermophysical measurements and can improve the accuracy of calibration of heat meters with a large diameter of pipelines. Measure the temperature of the incoming and return coolant in a closed pipeline. The transit time of the heat front formed by the injection into the coolant pipe, overheated with respect to the coolant circulating in the pipe, is determined between two thermocouples installed in it at certain distances LI and L2 from the injection zone. The countdown starts from the moment when the first thermocouple shows the set value ti, and ends at the moment when the second thermocouple shows the set value t2. In this case, the flow rate is determined from the time interval t2 L2 measured and, taking into account it, the volumetric flow rate G of the coolant. Knowing the values of tn, te and G, calculate the flow of heat energy Q, which is compared with the reading of the calibrated heat meter. The device for checking heat meters contains a closed pipe 1 in which a flowmeter 5 and one of the thermometers 6 of the verified heat meter are placed, and an exemplary flowmeter in the form of a piston drive 10 with exhaust and suction pipes 2 and 13 and two thermocouples 15 connected to a time counter 17.

One of the main disadvantages of the invention is the need for injection of an overheated coolant, the leading edge of which is washed out in the stream, and thermocouples are heated unevenly. In this case, the coolant volume increases briefly. The flow stabilization time is not maintained. The accuracy of measuring the speed and flow rate is low.

Another drawback is the extra injection valve and the use of an injection system.

The third drawback is the impossibility of verifying not the heat meter, but the entire metering unit on the stream in real operating conditions.

The next drawback is the lack of differential measurements of flow rates and temperatures, which at small differences create large errors in determining the amount of thermal energy and coolant.

The disadvantage is that if there are inserts for unauthorized consumption of thermal energy and coolant, they are not detected by this invention, and there are no prerequisites for detection.

The invention is known according to the patent RU 2383866 for “Heat meter and method for determining thermal energy of a heat carrier with direct measurement of the difference in flow rates when compensating for temperature error”.

In the heat meter, a means of measurement and automation according to GOST 26.010-80 was used as a matching and amplifying unit. In order to compensate for the temperature error (10 ÷ 150 ° C) arising from the expansion of the size of the fluoroplastic lining, changes in viscosity, heat carrier density and Re number, two divisions, multiplications, memory and a switch are additionally introduced in the heat meter. Mentioned blocks are controlled by command of the control unit. All parameters, depending on the temperature, lead to a certain temperature.

The disadvantage of the invention is the elimination of the disadvantages of the specific design of the heat meter, and not the measurement and calibration system, which is more important to cover all significant measurement errors.

The disadvantage is that if there are inserts for unauthorized consumption of thermal energy and coolant, they are not detected by this invention, and there are no prerequisites for detection.

At the same time, a wide range of significant influences is known during the installation, commissioning, and operation of both IP and, in part, means of IS IP.

Consider them in relation to the modernization of the most perfect invention according to patent RU 2182320, so that gradually, step by step, from object to object, to achieve new useful results from studying on the stream and eliminating their influence on the readings of devices, both working and, above all, exemplary.

In general, there are a large number of factors affecting the calibration and verification of metering systems for thermal energy and coolant and on working measuring instruments. Here are some of them.

In the work of P. Jepson, P.G. Bean "Effect of upstream velocity profiles on turbine flowmeter registration". The Journal of Mechanical Engineering Science. Vol. 11.No 5. Oct. 1969, pp. 503-510, p. 507 presented and tested a testing system (Test flow line) in the form of:

1) straighteners,

2) cones,

3) cranes

4) pipe narrowing.

They affect the structure of the flow and the error of the flow meter.

How to apply this testing to heat and coolant metering systems under actual operating conditions other than bench conditions has not been described. In addition, the range of influencing quantities is limited to specific types of tests.

In the work of Sheifer, "Performance of Turbine Flow Meters." Proceedings of the American Society of Mechanical Engineers. Technical mechanics. Volume 84. Series D. Number 4. Dec. 1962, p. 70-90, effects such as are described:

1) the nonlinearity of the characteristics of the flow meter,

2) flow rate and viscosity,

3) work on one specific fluid,

4) pressure and cavitation requirements,

5) flowmeter orientation,

6) picture of the flow at the inlet,

7) braking forces and lubrication requirements,

8) transient response,

9) reading equipment.

How to apply this to heat energy and heat transfer metering systems is not described in the work.

There are a large number of articles on falsification of heat and coolant accounting that illegally literally copy the original article of I.P. Andreeva "Caution: metering energy consumption under the threat of unauthorized interference by unscrupulous consumers." Energy efficiency. M.: TsENEF, No. 29, Oct.-Dec. 2000, p. 13-15, and its author's refinement in other publications (in the journal "News of Heat Supply". 2001, No. 5, pp. 37-40, and Proceedings of the Conference, St. Petersburg, 2003, shown below, from where it was copied almost simultaneously with the article) . Preliminary studies of instrument metering distortions are described by the same author in the articles “Typical errors in organizing commercial heat metering”. Energy efficiency. M .: CENEF. 1995. No. 9. S. 6-7, and "Instrumental examination and identification of defects in urban heat and water metering systems." Energy efficiency. M.: TsENEF, 1998, No. 21, p. 20-22.

Additionally and in more detail influencing factors are considered in the articles:

Andreev I.P. Factors affecting the reliability of accounting for energy and natural resources and their losses // Sensors and information converters of measurement, control and management systems. Sat Materials 13 of the Scientific and Technical Conference with the participation of foreign experts. M .: MGIEM. 2001.S. 207-210;

Andreev I.P. Losses of heat and water prevented by calibration // Commercial metering of energy carriers. Proceedings of the 17th International Scientific and Practical Conference. April 22-24, 2003 St. Petersburg: Borey-Art. 2003.S. 338-344.

The latter work provides information on the patent RU 2182320 on the calibration method (prototype of the present invention, see below), but the calibration according to the patent states that the calibrated metering unit is defective, but does not decide how to experimentally simulate and eliminate partially described defects and thefts taking into account the following factors and disturbances:

1. The threshold of sensitivity

2. Magnet

3. Pipes (taps, bends)

4. Non-standard laying in a straight section

5. The inner diameter of the gasket

6. Screw thread gasket

7. Vibrating pad

8. Precipitation on the walls of pipes and in filters

9. Partially open taps and gate valves

10. Shift and skew of flanges

11. Short straight sections

12. Flow airflow by centrifugal pump and suction (loose seal)

13. Surface roughness

14. Replacing calibrated washers

15. Wire braking

16. Putty of the measuring electrodes of the flow meter

17. Demagnetization of magnetic couplings of counters and permanent magnets of vortex counters

18. Thermowell and its filling

19. Resistor parallel to the resistance thermometer

20. Incorrect filling

21. Incorrect grounding and cable shielding

22. The asymmetry of wires and different sections

23. Presence of interference in programs

24. Inadequate linearization of channel characteristics

25. The imbalance of apartment-house accounting

Some serious deficiencies are identified and eliminated in the mentioned patent RU 2182320, IPC 7 G01K 19/00, on “Calibration method for measuring thermal energy and heat carrier and device for its implementation” with priority 08.02.2000. This is clear from the abstract and description.

The calibration method of the thermal energy and heat carrier measuring system is based on connecting an exemplary measuring instrument to the heat carrier pipe. In this case, the coolant flow is directed from the supply pipe through a model means to the return pipe. Then, the readings of the calibrated system and the reference means are compared and the difference in the readings of the flow rate, quantity and temperature of the coolant of the calibrated measurement system is taken into account by the supply and return pipelines. The device contains an exemplary means installed in a closed circuit between the supply and return pipelines, a coolant supply reducer and a circulation pump. A device for subtracting readings from the supply and return pipes is connected to the output of the calibrated system and the input of the means for processing the data of comparison of readings. The aforementioned method and device will improve the accuracy of the calibration of thermal energy measurement systems.

However, in practice, distortion of the flow and readings in the nodes and devices of the calibrator is possible for the following reasons:

1) due to incomplete cranes,

2) offset flanges and gaskets,

3) a possible initial deflection (due to lack of pressure in the pipeline) of a long flexible metal sleeve,

4) due to insufficient time for warming up the system and stabilizing the flow,

5) due to metrological unreliability of the calibration unit.

In addition, during calibration, defects in working accounting systems are detected, and it is clearly not possible to show the probable cause directly to interested parties.

These disadvantages of research, training and testing are eliminated by the present invention, but not immediately, but, for example, at least 1 potential defect in one object, i.e. through the gradual step-by-step creation, study and study of influencing factors that are possible in operation on a group of randomly selected objects of consumption of thermal energy and coolant. This allows the developer and installer of the tested heat energy and coolant metering systems, together and using the recommendations of the metrologist performing calibration and calibration on the flow, to show and eliminate, where possible, hidden defects in operation. This will also allow not duplicating similar studies on very expensive, impossible and not mobile, as described above in journal articles P. Jepson, P.G. Bean and Shafer, special pouring and thermal reference plants and stands.

However, this invention has a drawback and advantages - if there are inserts for unauthorized consumption of thermal energy and coolant, they are not detected by this invention, but there are prerequisites for identifying unauthorized inserts. Wherever the insets are located, near the building in the ground under the pipes, inside the knowledge in reinforced concrete, under the building deep in the form of a “well” with access to an uncontrolled heating plant, they can be identified during the work.

A ventilation system with malfunctioning automation may also fail, especially in cold weather (in practice, no failure was observed). The heating range of the radiators is limited by the current supply temperature (~ 90 ° C), and in the cold it is high (~ 107 ° C). Calibration system cooling time from 100 ° C to 60 ° C for a pipe with a diameter of 50 mm takes 30 minutes, and for pipes of a larger diameter it is much longer, and the ventilation radiator in frost very quickly. When the object is turned off for many hours, some elements of the heating system, such as ventilation, can freeze and lead to an accident.

Identification and elimination of these shortcomings are the first objective of the invention.

Another objective of the invention is to identify possible defects in incorrect installation and flow control in a portable device (node) calibration on the stream and eliminate them in the course of metrological work.

The third objective of the invention is to reduce the installation length of the flexible pipeline and straight sections (taking into account the opening of the object's taps) of the flow meters in a portable calibration device on a stream that, without load (water pressure in the pipeline 6-8 bar) and holding it by hand, can bend unnecessarily under its own weight and long lengths.

The objectives of the invention are achieved by the fact that an additional exemplary calibration unit is introduced into the coolant flow, the heterogeneity of the temperature field of the heating system inside the object and adjacent objects without metering devices is controlled, while the readings of the exemplary calibration units are compared and the nature of the heterogeneity of the change in temperature fields and according to the results of comparison and field inhomogeneities judge the effect of disturbances and disconnection of the object from the heating system on the errors and reliability of the measurements rhenium account of thermal energy and coolant is passed through an additional exemplary assembly with a thermometer and flow meter and device intentionally insertion perturbations in a flow and the pilot flow parameters and distortion readings.

In addition, a node of the experimental effect (changes, stabilization or distortion) of the hydraulic and thermal parameters of the flow and readings of the instruments is introduced into the calibration system, and when the readings of the calibration nodes are compared, the effect is evaluated.

Further, a program for linearizing the characteristics of the flow channels and temperatures with a shift of the linearization points relative to the linearization program of the main calibration unit was introduced into an additional calibration unit.

Upon completion of verification, connecting the facility to heating networks and stabilizing the temperature regime of the facility determine the actual specific consumption of thermal energy of the facility, reduced to the external and internal climatic conditions of the facility. This ensures the reliability of determining the specific consumption of thermal energy for heating in accordance with GOST 31168-2003 and the goals of energy audit and energy conservation at the facility.

As a unit of experimental action, a jet straightener, a heater, a cooler, a ventilation unit, a shutter, a partially open tap, offset flanges and gaskets, a magnet, and a screw-threaded nozzle are used.

As a node of the experimental action, a vibrating pad is used.

As a node for experimental exposure, nozzles with precipitation on the pipe walls and in the filters are used.

As a node of the experimental action, flanges with shear and skew are used.

As a site for experimental exposure, short straight sections are used before or after the flow meter of the calibration unit.

As a site of experimental exposure, a centrifugal pump and suction are used.

As a node of the experimental effect, a pipe with a rough surface is used.

As a site for experimental exposure, putty of the measuring electrodes of the flow meter is used.

A thermowell as a hydraulic resistance is used as a node for experimental action.

As a node of the experimental effect, a conical pipe is used.

As paired model calibration nodes, they are created interchangeably and differentially configured.

As exemplary calibration nodes, they are used with the ability to directly display the readings of inverted devices.

As at least one of the exemplary calibration nodes, the rotation of the readings in the monitor is applied.

The invention is illustrated by 15 figures, where in FIG. 1 shows: 1 - metering system of thermal energy and coolant, 2 and 3 - supply and return pipelines, 4 and 5 - shut-off valves, 6 - valve for regulating the flow, 7 and 8 - exemplary flow and temperature units, 9 - flexible pipeline ( metal hose), 10 - node experimental distortion of flow parameters and instrument readings, 11 and 12 - taps to disconnect the object 13 from the heating system.

In FIG. Figure 2-11 shows typical disturbances: half-closed tap, flange shift, flange or gasket offset, shutter, elbow, orientation and direction, vibration, flow straightener, circulation pump, roughness inside the pipes.

Fig. 12 shows a hidden unauthorized tie-in 14 into the supply and return pipelines, which are connected to the object through the metering unit 15 of heat energy and heat carrier.

In FIG. 13 shows characteristic graphs of temperature measurement from the inset when simulating the shutdown of an object and actually in a disconnected object twice, which is characterized by a surge in the lower graph.

In FIG. 14 shows a diagram of ventilation of an object using a radiator 16 from a heating system and a fan 17, powered by an electric network.

In FIG. 15 shows a typical circuit for reversing an asynchronous fan motor. When it is turned on, the air flow from the street changes direction, so the radiator does not freeze during the disconnection of the object from the heating system (with the radiator controlled by a pocket pyrometer).

The calibration and testing process is as follows.

The heat carrier flow from the heating system circulates through heat energy and heat carrier accounting systems 1, supply and return pipelines 2 and 3, shut-off valves 4 and 5, a shut-off valve for regulating flow 6, model flow and temperature units 7 and 8, a flexible pipe (metal hose) 9, a node for experimental distortion of flow parameters and readings of devices 10, taps for disconnecting an object 11 and 12, and the object 13 itself from the heating network. In the heating mode of facility 13, taps 11 and 12 are open, and taps 4 and 5 are closed. In calibration and test mode, on the contrary, taps 4 and 5 are open, and taps 11 and 12 are closed. If the taps 11 and 12 are not fully closed, an error will appear, which will be attributed to the metering system of thermal energy and heat carrier of the consumer.

Without intentionally created disturbances, exemplary flow and temperature nodes 7 and 8 should show the same accuracy measurement standards or an order of magnitude better.

One or more disturbances are introduced, for example, typical disturbances shown in FIG. 2-11: half-closed tap (in 2 types - to choose from), flange shift, flange or gasket offset, shutter, elbow, orientation and direction, vibration, jet straightener, circulation pump, roughness inside the pipes. There may be any disturbances indicated above, or new ones invented by the tester. It is important not to conduct them all at once and on 1 object, but to scatter 1 perturbation at each object. Then the tester (metrologist) will have at least some idea of the influences and errors of designers, metrologists and installers.

In FIG. 12 shows a hidden unauthorized insert 14 of 2 pipes into the supply and return pipelines, which bypasses the metering unit of heat energy and heat carrier 15, and the flow is not registered. The inset is easy to determine by the temperature change of the differently located heating pipes and radiators inside the object 13 or nearby knowledge, such as a garage.

The user may intentionally block the sidebar during calibration. Then, as shown in FIG. 13, this will be seen on the characteristic graphs of temperature measurement from the inset when simulating the shutdown of an object and actually in a disconnected object twice, which is characterized by a surge in the lower graph. Short-term overlap is created artificially in the presence of a metrologist, for example, when replacing node 10 with another.

At the facilities, ventilation sometimes works without frost protection of radiators 16 from the heating system, and the fan 17, which is powered from the mains, remains turned on. However, the range is limited by the current supply temperature (~ 90 ° C), and not in frost when it is high (~ 107 ° C). The cooling time of a closed calibration system from 100 ° C to 60 ° C for a pipe with a diameter of 50 mm takes 30 minutes, and for pipes of a larger diameter it is much longer. When the object is turned off for many hours, some elements of the heating system, such as ventilation, can freeze and lead to an accident.

In this case, if there are doubts about the health of the ventilation automation and for the prevention of an accident, in FIG. 15 shows a typical circuit for reversing an asynchronous fan motor with a permutation of 2 phases out of 3. When it is turned on, the air flow from the street changes its direction, so the radiator does not freeze when the object is disconnected from the heating system (with the radiator controlled by a thermal imager or pocket pyrometer).

A thermal imager or a pocket pyrometer is also used for the control of temperature fields discussed above when the object is disconnected from the heating system to detect the fact of the insets. Wherever the insets and bends are located, near the building in the ground under pipes, inside the knowledge in reinforced concrete, in the neighboring building, under the building deep in the form of a “well” with access to an uncontrolled heating plant, the temperature field changes if there is a shutdown of the heating system during calibration costs, intentional consumption of thermal energy will be detected.

Although the invention has been described in connection with a preferred embodiment, it is not intended to limit the scope of the invention to the specific form provided, but, on the contrary, it is intended to cover such alternatives, modifications and equivalents that may be included in the essence and scope of the invention, such as defined by the attached claims.

Claims (25)

1. The method of calibration and verification of the measuring system of thermal energy and coolant, taking into account perturbations, based on switching the coolant flow from the supply pipe through the calibration sample unit to the return pipe and disconnecting the measurement system from the consumer, characterized in that an additional model assembly is introduced into the coolant flow calibration, control the heterogeneity of the temperature field of the heating system inside the object and adjacent objects without metering devices, while comparing Azania exemplary calibration nodes are compared with each other and change the character of the inhomogeneity of temperature fields and the results of comparison of indications of nodes and comparing field nonuniformity produced is judged on the impact of disturbances and off by heating object on the error and the accuracy of measurement of thermal energy and coolant. 2. The method according to p. 1, characterized in that the node of the experimental effect (change, stabilization or distortion) of the hydraulic and thermal parameters of the flow and the readings of the instruments is introduced into the calibration system, and when the readings of the calibration nodes are compared, the effect is evaluated. 3. The method according to claim 1, characterized in that a linearization program for linearizing the characteristics of the flow channels and temperatures is introduced with an offset of the linearization points relative to the linearization program of the main calibration unit. 4. The method according to p. 1, characterized in that upon completion of verification, connecting the object to the heating system and stabilizing the temperature of the object determine the actual specific consumption of thermal energy of the object, reduced to the external and internal climatic conditions of the object. 5. The method according to p. 2, characterized in that as a node of the experimental impact apply a straightener. 6. The method according to p. 2, characterized in that a heater is used as a node for the experimental action. 7. The method according to p. 2, characterized in that a cooler is used as a node for the experimental action. 8. The method according to p. 7, characterized in that the ventilation unit is used as a cooler. 9. The method according to p. 2, characterized in that a shutter is used as a node for the experimental action. 10. The method according to p. 2, characterized in that a partially open crane is used as a node for the experimental action. 11. The method according to p. 2, characterized in that as the node of the experimental action apply the offset of the flanges and gaskets. 12. The method according to p. 2, characterized in that a magnet is used as the node of the experimental action. 13. The method according to p. 2, characterized in that as a node of the experimental effect, a pipe with a screw thread is used. 14. The method according to p. 2, characterized in that as a node of the experimental action apply a vibrating pad. 15. The method according to p. 2, characterized in that as a node of the experimental effect, nozzles with precipitation on the pipe walls and in the filters are used. 16. The method according to p. 2, characterized in that the flanges with shear and skew are used as the node of the experimental action. 17. The method according to p. 2, characterized in that as the site of the experimental impact apply short straight sections before the flow meter of the calibration unit or after it. 18. The method according to p. 2, characterized in that a centrifugal pump and a suction are used as a node for the experimental action. 19. The method according to p. 2, characterized in that as a node of the experimental effect, a pipe with a rough surface is used. 20. The method according to p. 2, characterized in that as the site of the experimental impact apply putty measuring electrodes of the flow meter. 21. The method according to p. 2, characterized in that the thermowell is used as a hydraulic resistance as a node of the experimental action. 22. The method according to p. 2, characterized in that a conical pipe is used as a node for the experimental action. 23. The method according to p. 2, characterized in that as paired model calibration nodes create them interchangeably and differentially configured. 24. The method according to p. 2, characterized in that as exemplary calibration nodes they are used with the possibility of direct displays of the readings of inverted devices. 25. The method according to p. 2, characterized in that as at least one of the reference calibration nodes applied the rotation of the readings directly in the monitor.

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