RU2247899C2 - Protection system for thermal power equipment - Google Patents

Abstract

FIELD: protection of thermal power equipment; industrial boiler plants.

SUBSTANCE: proposed system includes steam trap, condensate pipe line and pipe line for inlet of chemically purified water, discharge pipe line fitted with pump connected with feed water outlet pipe line connected to deaerator head. Discharge pipe line is additionally provided with pump. Chemically purified water inlet pipe line is connected with feed water outlet pipe line.

EFFECT: enhanced operational reliability.

3 cl, 2 dwg

Description

The claimed system relates to devices that protect heat engineering tanks from dehydration, and can be widely used in boiler rooms of various enterprises.

The closest analogue of the claimed invention is a technical solution for AS SU 1481564, F 22 D 5/00, 05/23/1989, which contains a condensate collector with a condensate conduit connected to it and an inlet pipe for chemically treated water, a discharge pipe with a pump installed on it, connected to an outlet pipe for feed water connected to the deaerator head .

A disadvantage of the known device is the complexity of the design and the associated reduction in the reliability of the device.

The aim of the invention is to increase the reliability of its work by simplifying the design.

This goal is achieved by connecting the inlet of the condensate collector to its outlet after the discharge device through at least one non-return valve or at least one pressure regulator, for example via a regulator after itself.

The protection system of heat power equipment is illustrated by the following drawings:

Figure 1 - structural diagram of the system;

Figure 2 - plot communication input and output of the system.

The protection system of heat and power equipment includes: a condensate collector 1 with a condensate pipe 2 connected to it, a pipe 3 for chemically purified water, the outlet 4 of which is connected to the condensate collector 1 through an automatic valve 5, functionally connected to a level 6 sensor.

The pipeline 3 also has a branch 7 with a non-return valve 8 installed on it.

From the bottom of the condensate collector is connected to the outlet pipe 9 having bends, a branch 10 with a pump 11 installed on it, at the outlet of which a check valve 12 is installed, and valves 13 and 14 are installed at the inlet and outlet of the pump 11, outlet 15 with a pump installed on it 16, at the outlet of which a check valve 17 is installed, and at the inlet and outlet of this pump restriction valves 18 and 19 are installed. Thus, the pumps 11 and 16 are installed in parallel with respect to each other. Branches 10 and 15, which are parallel-mounted pipelines, are finally connected to the feed pipe 20, which is connected to the head 21 of the deaerator 22. An automatic valve 23 is installed on the pipe 20, which is functionally connected to the level sensor 24 installed on the deaerator 22. A branch 7 connects the pipeline 3 through a check valve 8 with a feed pipe 20. A pressure regulator 25 can also be installed on the outlet 7.

The protection system of heating equipment works as follows:

Dry water through pipeline 3 and branch 4 is supplied to the condensate tank 1, which is mixed in it with the condensate coming in through the pipe 2. The automatic valve 5, receiving through the regulator from the sensor 6 the corresponding signal, maintains the required level in this tank. Next, the condensate-water mixture through the pipeline 9, taps 10 and 15 by pumps 11 and 16 is fed through the pipe 20 to the head 21 of the deaerator 22, the level of which is maintained by a valve 23, which is functionally connected with the sensor 24, receiving a signal from it through a control device.

If there is a shortage of water supplied by the pump 11 or 16, the chemically purified water through the outlet 7 through the check valve 8 is supplied to the pipe 20 before the automatic valve 23. Similarly, this water can be supplied through the outlet 7 through the pressure regulator 25, for example, through the regulator after itself, thereby stabilizing pressure of supplied water.

A pressure regulator 25, for example a regulator after itself, can also be installed on the feed line 20. The pressure regulator 25 additionally stabilizes the water pressure in the pipe 20. The pipe 3 can be called inlet, and the pipe 20 - outgoing relative to the condensate collector 1, which is the technological capacity.

Claims (3)

1. The protection system of thermal power equipment, comprising a condensate collector, with a condensate conduit connected to it and an inlet pipe for chemically purified water, an outlet pipe with a pump installed on it, connected to an outlet pipe for feed water connected to the deaerator head, characterized in that the outlet pipe is additionally equipped with a pump, and the inlet pipe for chemically purified water is connected to the outlet pipe for feed water oprovoda treated water conduit. 2. The system according to claim 1, characterized in that at least one non-return valve is installed on the pipeline discharging from the chemically purified water pipeline. 3. The system according to claim 1, characterized in that at least one non-return valve and at least one pressure regulator are installed on the outlet pipe from the chemically purified water pipeline.

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