RU30936U1 - Heat supply stand - Google Patents

Description

HEAT SUPPLY STAND

The utility model relates to a power system, in particular, to closed water heat supply systems, and is intended for use in urban heat supply systems.

A known circulation system of heat supply to consumers (RU No. 12222, class 6 F 24 D 3/02) containing a flow inducer communicated by a suction line with a consumer outlet, and a discharge line with a consumer inlet, and a reservoir connected to the suction line. The flow driver is made in the form of a liquid-ring vacuum pump, the suction line of which is additionally connected with the water well and the vacuum section, and the discharge line with an additional reservoir of cold water, while the suction and discharge lines are connected by a jumper containing an intermediate tank, and all tanks, except vacuum, installed above the level of consumers.

The disadvantage of the system is the inclusion in the structure of additional technical means that require significant energy costs to ensure reliable and stable operation.

Also known is a closed water district heating system (SU No. 928135, class F 24 D 3/00), which includes the supply and return pipes, the supply and return pipes of the heating system, hot and cold water pipelines, a constant flow rate controller, an elevator, and a hot heater water installed on the return pipe of the heating system, and a jumper connecting the falling and return pipes of the heating system. It is equipped with an additional jumper connecting the falling and return

heating system pipelines, and temperature controllers are installed on the jumpers, the sensors of which are installed on the return pipe of the heating system and the hot water pipeline.

The disadvantage of this system is the low efficiency due to the incomplete use of water heat with significant use of control and regulation tools.

A well-known heat supply stand (RU No. 9507, class 6 F 24 D 3/00), comprising a supply pipe, an elevator system with a pump, means of control and regulation. This stand is equipped with controllable control valves, which are installed in pairs in each heat sink in pairs, one in series and the other parallel to it.

The disadvantage of the heat supply system is the design complexity and the need for high installation accuracy to ensure the quality of heat supply regulation.

Utility Model Essence

The task of creating a utility model is to increase the reliability and simplify the design of the heat supply stand while maintaining the high quality of heat and hot water supply in residential and public buildings.

The task is achieved in that the heat supply stand contains two operation schemes of individual heating units for house heating and hot water supply, including a supply pipe, an elevator system with a pump, control and regulation means, and according to a utility model, it is additionally equipped with an independent heating system and a closed hot system water supply based on plate heat exchangers, and its control and regulation system includes a heat meter, shut-off and control valves on a direct set in the pipeline and the circulation pump pipe on the jumper between the direct and return pipes,

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controlled by a microprocessor device in the heating system and a shut-off and control valve on the return pipe after the electric heater, also connected to the microprocessor device, in the hot water system. To control the temperature and pressure of water, indicating thermometers and manometers are installed, and for the economical operation of the stand, the outside temperature is taken into account in the control system.

The use of an independent heating system and a closed hot water supply system avoids the influence of temperature conditions of the heating units specified by the external heating network, which is typical for the functioning of the dependent heat supply scheme. In the autumn-spring period, when the difference between daytime and nighttime temperatures of the outside air can reach tens of degrees, the external heating system cannot quickly respond to these changes. This causes overflow when the temperature of the coolant is overestimated in accordance with the established heat supply schedule for a given outdoor temperature, and underflow when the temperature is, on the contrary, underestimated.

The inclusion of plate heat exchangers in the hot water supply system together with the use of a control system ensures that the water temperature is maintained at a preset level and is the simplest constructive solution.

The operation of the control and regulation system based on standardized equipment, including a heat meter, thermal converters, shut-off and control valves without pairwise parallel-parallel execution, connected to a microprocessor device, as well as the presence of visual control devices, allows minimizing energy costs at the times of least consumption hot water and maximum coolant consumption.

This solves the problem of increasing the reliability and simplifying the design of the heat supply stand while maintaining the high quality of heat and hot water supply in residential and public buildings.

In Fig.1 shows a General view of the panel stand heat supply, in Fig. 2 shows the front of the stand panel, and FIG. 3 shows the back of the stand panel.

Information confirming the possibility

utility model implementation

The stand contains in the supply pipe of the heating system a network pump 1, an electric heater 2, a pressure gauge 3, a filter 4, a flowmeter 5, a temperature sensor 6, a pressure gauge 7, a thermometer 8, a shut-off and control valve 9, an elevator system with a circulation pump 10 and a differential pressure sensor 11, a pressure gauge 12, a heating temperature sensor 13, a thermometer 14, a balancing valve 15, and in the return pipe a pressure gauge 16, a thermometer 17, a filter 18, a pressure gauge 19, a flow meter 20, a temperature sensor 21. Between the feed line and the return line in front of the rear ends the other part of the stand is connected to a differential pressure sensor

22, and a heat meter is connected to temperature sensors 6 and 21 and flow meters 5 and 20

23. The hot water supply system is connected to the heating system through a plate heat exchanger 24 and a shut-off and control valve 25 and contains a temperature sensor 26, a pressure gauge 27, a thermometer 28 and a mixer 29. All control and regulation means, except for those intended for visual observation, are connected to the microprocessor device 30, to which the external air temperature sensor 31 is also connected. In the heating structure, a temperature controller 32 is installed in front of each heating element. For the stand to work in an economical, independent mode e

The list of figures in the back of the panel provides for the installation of a plate

heat exchanger 33.

The stand works as follows, the heated network water from the electric heater 2, passing through the cleaning system in the form of a filter 4, enters the direct water block of the heat meter 23, based on the flow meter 5 and temperature sensor 6. After the pressure gauge 7 and thermometer 8, direct network water is taken for an independent hot water system connected to the heating system by means of a plate heat exchanger 24. Return water from the plate heat exchanger 24 enters an uncontrolled jumper that allows you to adjust with the return water from the hot water system in a direct or reverse branch heating system. Direct water, having passed the check valve block and the control valve 9, enters the elevator as part of the circulation pump system 10, where it is pumped into the direct water pipeline under the influence of excess pressure of the return water created by the circulation pump system 10. The parameters of the direct water are recorded by a heating thermometer 13 connected to a microprocessor device. In order to optimize the temperature regime of the heated room, the direct water branch is equipped with a balancing valve 15 and a temperature regulator ЗЯ.

In parallel with the heating elements, a differential pressure sensor 22 is installed, which serves to monitor the integrity of the internal heat supply system. The circulation pump system 10 consists of two jumpers: uncontrolled with a check valve and controlled with a circulation pump, which is switched on if the pressure difference between the direct and return pipes drops to a critical level.

The cooled return water passes the return water block of the heat meter 23, made on the basis of the flow meter 20 and the temperature sensor 21.

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Claims (5)

1. A heat supply stand comprising a supply pipe, an elevator system with a pump, control and regulation means, characterized in that it is additionally equipped with an independent heating system and a closed hot water supply system based on heat exchangers, and its control and regulation system includes a heat meter, shut-off and regulating valves on the direct network pipe and the circulation pump pipe on the jumper between the direct and return pipes, controlled by a microprocessor device, heating system and shut-off control valve in the return pipe after the electric heater is also connected to a microprocessor device in the hot water system. 2. The stand according to claim 1, characterized in that for visual control of the temperature and pressure of the water, showing thermometers and manometers are installed. 3. The stand according to claim 1, characterized in that the control system comprises a temperature sensor for outdoor air. 4. The stand according to claim 1, characterized in that the heat exchangers are plate-shaped. 5. The stand according to claim 1, characterized in that it is made on the basis of two schemes of operation of individual heating units for home heating and hot water supply.