The recycling device pressure drop in steam generating systems

 

(57) Abstract:

The recycling device pressure drop in steam generating systems relates to the field of boiler installations and is intended to provide consumers with steam and electricity. The recycling device pressure drop includes the additional temperature sensor manifold low pressure and rpm sensor connected to the pulse line to the input of the speed controller, whereby pressure steam is fed to a steam turbine of the turbogenerator connected to a generator that produces electricity for the consumer, and the required accuracy of the parameters of the steam fed to the user pair, provides additional flow of steam and condensate. The invention allows for the reduction of the deadweight loss by beneficial use of excess steam pressure and improving the accuracy of maintenance required by the customer a couple of options. 1 Il.

The invention relates to the field of boiler installations and is intended to provide consumers with steam and electricity.

You know the recycling device pressure drop in steam generating systems (see Gurevich, M. S. and other Teplov, Fig. 129) containing steam boilers To communicated with a reservoir of high pressure 23-40 ATA connected through a pressure reducing and desuperheating device, comprising throttle valves of steam and condensate and mixer manifold low pressure 4-6, control valves, consumers pair P. C. D. and P. I. D. and power, turbine, including the generator G and the steam turbine T, the input of which is connected to the collector of a high pressure, and the output from the collector of low pressure, the pressure sensor is connected to the pulse line from the regulator, the output of which is connected with the regulating valve pair is provided with a mixer.

The disadvantage of the closest analogue is the irretrievable loss of the energy produced steam and accurate enough to maintain the desired steam parameters.

The objective of the proposed technical solution is the reduction of the deadweight loss by beneficial use of excess steam pressure and improving the accuracy of maintaining the required steam parameters.

This goal is achieved thanks to the fact that the device contains a temperature sensor manifold low pressure impulse line is connected to the controller, the output of which reported the company to the input of the speed regulator the output of which is connected with the control input of the regulating valve turns, your input is in communication with the outlet manifold high pressure, and output to the input of the steam turbine, and control valves for steam and condensate installed parallel to the respective throttle valves.

The drawing shows a schematic diagram of the proposed device utilization pressure drop in steam generating systems.

The device includes a group of boilers 1, manifold high pressure 2, pressure reducing and desuperheating device containing a throttle valves condensate 3 and pair 4, a mixer 5, the manifold low pressure 6 pressure sensors 7, temperature 8 and 9 speed, pulse line 10, 11, 12, regulators 13, 14, 15, control valves condensate 16 pair 17 and turns 18, the generator 19 and the steam turbine 20.

The device operates as follows.

From boiler 1 steam enters the manifold high pressure 2, where the two streams is directed to the manifold low pressure 6.

The first flow of steam supplied to the steam turbine 20 is connected to a generator 19, which generates electricity, and after expansion in the turbine enters the collector nor the 15, associated with regulating valve 18, the controlling steam flow to the turbine generator and supporting the desired turbine speed. For the formation of steam in the second thread, the relevant requirements of the consumer of steam, the pressure sensor 7 via a pulse line 11 transmits a signal to the controller 14 that controls the valve 17. Then pairs with the required pressure is supplied to the mixer 5. There also comes a condensate pump condensate on the cooling steam, the amount of which is regulated by the signal of the temperature sensor 8, the transmitted pulse through line 10 to the controller 13, the pilot valve 16. As a backup device for regulating steam parameters used throttle valves condensate 3 and pair 4, manually managed.

The recycling device pressure drop in steam generating systems provides electricity production by using excess steam pressure taken from the collector of the high-pressure and steam transport in the collector of the low pressure necessary for consumers of steam parameters (pressure and temperature).

The device utilization of the pressure drop in the steam generating systemecho-cooling device, including throttle valves of steam and condensate and mixer, with header low pressure regulating valves, consumers of steam and electricity, the turbine, including the generator and the steam turbine, the inlet of which is connected to the collector of a high pressure, and the output from the collector of low pressure, the pressure sensor is connected to the pulse line from the regulator, the output of which is connected with the regulating valve pair is provided with a mixer, characterized in that it contains a temperature sensor manifold low pressure impulse line is connected to the controller, the output of which is communicated with a control valve condensate provided with a mixer, rpm sensor, connected to the pulse line to the input of the speed controller, the output of which is connected with the control input of the regulating valve turns, your input is in communication with the outlet manifold high pressure, and output to the input of the steam turbine, and control valves for steam and condensate installed parallel to the respective throttle valves.

 

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