Recovery system overpressure backbone networks water and heating

 

The invention relates to the field of water supply and heat and can be used in the systems of the backbone networks of water supply and heating. The technical result is to increase the effectiveness and efficiency of functioning of systems of water supply and heating. Recovery system overpressure backbone networks water and heat supply contains connected through the heat exchanger supply and return piping line bypass pressure including dynamic pump and shutoff valve. Line bypass pressure mounted on the direct pipeline by means of two valves - input and output - parallel input main valve before the valve and enables the generator as an induction motor, coupled with a dynamic pump - centrifugal, diagonal or axial running in the turbine mode, connected through an inverter to the network user generated electric energy, connected in parallel with the capacitor, ballast load and the controller, through providing feedback control of the process of operation of the recovery system overpressure Magister="0">

The invention relates to the field of water supply and heat and can be used in the systems of the backbone networks of water supply and heating.

Currently, continuously operating Novotrubny water systems heating systems and water supply systems there is the problem of having excessive line pressure supplied to the Central thermal points, while the excess pressure is lost on shut-off and regulating valves. Known heating system containing forward and reverse pipelines, included respectively in the forward and reverse main heating network, heat exchangers and regulatory tools to protect against emergencies (Brankov C. N., The khavanov P. A., Wacker L. J. Heat small settlements, M., stroiizdat, 1988).

However, such systems do not have sufficient reliability to the same excess pressure is lost on shut-off and regulating valves.

Also known heating systems that use regulatory means to protect against excess pressure through the use of additional teplopotreblenija. The closest analogue is the recovery system from the nternet and the return pipe, line bypass pressure including dynamic pump and shutoff valve (see RF patent №2160873 C1, class F 24 D 17/00, 09.12.1999).

However, such systems do not provide the possibility of the deliberate use of excessive line pressure, in particular for converting it into electrical energy.

The objective of the invention is to improve the effectiveness and efficiency of functioning of systems of heat and water supply systems due to recovery of excessive line pressure using dynamic pumps.

This technical result is achieved due to the fact that the recovery system overpressure backbone networks water and heat supply, containing United through the heat exchanger supply and return piping line bypass pressure including dynamic pump and shutoff valve, the bypass line pressure is mounted on the direct pipeline by means of two valves - input and output - parallel input main valve before the valve and enables the generator as an induction motor, coupled with a dynamic pump - centrifugal, diagonal or axial running the VI, having a parallel connected capacitor, ballast load and the controller, through providing feedback management process of recovery of excess pressure backbone networks.

The output valve of the bypass line pressure, coupled with a direct pipeline to shut-off and control valve turns on when needed repairing.

Stabilized via inverter generated electric power is supplied to the network user over the counter.

Used in the system of valves completed with electric drive.

The drawing shows a diagram of the heating system, equipped with a bypass line pressure centrifugal pump.

Recovery system overpressure backbone network heat supply contains connected in parallel to the direct 1 and 2-reverse pipelines passing through the heat exchanger 3, the bypass line pressure comprising a pump 4 operating in turbine mode, and shut-off valve 7. Line bypass with a centrifugal pump 4 through the inlet 5 and outlet 6 of the valve installed in the direct pipeline 1 consistently shut-off and regulating valve 7 and parallel vhodnye produced electrical energy connected in parallel with the capacitor 11 and the ballast load 12, and is connected to the inputs of the controller 13 feedbacks for monitoring and control for process systems. The output latch 6-pass line pressure connected with a straight pipe before the valve 7, is activated when the need for repairs.

Stabilized through the inverter 10 of the produced electric power is supplied to the network customer counter 14. Valves 5 and 8 are electrically powered. As the generator 9 can be used asynchronous motor, the excitation winding which is provided by the capacitor 11.

The system works as follows. If excessive line pressure in the direct pipeline 1 main valve 8 provides overlapping workflow and sends it through the open valve 5 to the pump 4.

The pump 4 operates in the turbine mode, and rotates the motor shaft 9, which passes in the generator mode and produces electrical energy.

Generated electric power is supplied to the network behind the counter 14 and may be spent for your own needs or transmitted in the network for external consumption. In case of failure of the pump 4, the valve according to the needs generated by the additional electricity it consumed by the ballast 12.

The system works in a variety of possible emergency situations

1. The sharp increase in line pressure. The system allows to damp strictly calculated pressure value, all of the remaining excess pressure is supplied to valves and valve 7 running in normal mode.

2. Sudden cessation of energy consumption, stop all electrical equipment of the boiler in the event of termination of the external power supply. The system switches the operation mode to the ballast.

3. All overclocking modes of the electric motor operating in generator mode, controlled by the speed sensor 15, is additionally installed on the motor. In the event of such situations, the controller 13 sends a signal to open the valve 8 and the closing of the valve 5 to stop the motor 9.

Claims

1. Recovery system overpressure backbone networks water and heat supply, containing United through the heat exchanger supply and return piping line bypass pressure including dynamic pump and shutoff valve, wherein the bypass line pressure mounted on direct trubine-regulating valve and enables the generator as an induction motor, coupled with dynamic pump - centrifugal, diagonal or axial running in the turbine mode, connected through an inverter to the network user generated electric energy, connected in parallel with the capacitor, ballast load and the controller, through providing feedback management process of recovery of excess pressure backbone networks.

2. The system under item 1, characterized in that the output valve of the bypass line pressure, coupled with a direct pipeline to shut-off and control valve turns on when needed repairing.

3. The system under item 1, characterized in that the stabilized through the inverter generated electric power is supplied to the network user over the counter.

4. The system under item 1, characterized in that the valve is made with the drive.



 

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