RU2105247C1 - Boiler house - Google Patents

Abstract

FIELD: heat supply to residential and industrial buildings. SUBSTANCE: boiler house is provided with ejector 18 whose admission piping is connected to make-up tank 11 and delivery piping, to inlet of circulating pump 6; working fluid piping is connected to circulating pump outlet. Under normal conditions, coolant is fed from tank 11 directly to pump 6 and is pumped by the latter through heat generator 1 and further goes to user; when heat is supplied to high-pressure-drop equipment, coolant is fed to pump 6 by means of ejector 18. EFFECT: improved pressure of coolant supplied to users. 1 dwg

Description

 The invention relates to energy facilities and can be used to supply heat to residential and industrial facilities.

 A known installation for heating water and supplying consumers with heat. The installation includes stages of preliminary and additional heating of the coolant, a circulation pump and a piping system for supplying heat to consumers [1].

 Installation is complex in design and maintenance.

 Closest to the claimed technical solution is a boiler room containing a storage (make-up) capacity, a hot water boiler, a pump for supplying water to the boiler and pipelines for supplying water [2].

 The boiler room does not have a reserve to increase the pressure if it is necessary to supply a coolant to high-altitude heat consumption facilities.

 The technical challenge facing the invention is to provide the possibility of increasing the pressure head of the coolant when connected to the heat supply system of high-rise objects or objects with high hydraulic resistance.

 To solve this problem, the boiler room, which contains a make-up tank for the coolant, a heat generator and a circulation pump for supplying the coolant from the make-up tank to the heat generator, is additionally equipped with an ejector, the suction pipe of which is connected to the make-up tank, the discharge pipe to the circulation pump inlet, and the working fluid supply pipe to the exit of the circulation pump.

 The drawing shows a general diagram of a boiler room.

 The boiler room contains a heat generator 1, equipped with an outlet pipe 2 with a valve 3 and an inlet pipe 4 with a valve 5, and a circulation pump 6, the outlet (pressure pipe) of which is connected to the pipe 4. Pipelines 4 and 2 communicate with the bypass pipe 7 with the valve 8. Input ( the suction pipe) of the circulation pump 6 through a pipe 9 with a valve 10 is connected to a pressure-free make-up tank 11, to which the processing line of the heating system of the object is connected via a pipe 12 with a shut-off valve 13. The valve 13 is equipped with a membrane actuator 14, connected by a pipe 15 to the tank 11 at the boundary of the upper level of the coolant in the tank and equipped with a pipe 16 with a valve 17 to discharge the coolant from the pipe 15.

 The boiler room is equipped with an ejector 18, the working fluid is supplied to it from the outlet of the circulation pump 6 through a pipe 4 and a pipeline 19 connected to it with a valve 20. The discharge pipe 21 of the ejector 18 is connected to the inlet of the pump 6 through a pipe 9, and the suction pipe 22 with a valve 23 is connected to tank 11.

 In addition, the boiler room has a pipe 24 for filling the tank 11 with a coolant. To exclude reverse flows of the coolant in pipelines 4 and 22, check valves 25 and 26, respectively, are installed.

 The principle of the boiler room.

 Pre-filled with coolant (water) tank 11 without reaching the upper level. The initial position of all valves and gates is closed.

 Open the valve 10 and the pump 6 is filled with coolant from the tank 11. Turn on the pump 6 and smoothly open the valve 8, while the coolant through the pipelines 4, 7 and 2 fills the heating system of the object and through the open shut-off valve 13 through the pipe 12 enters the tank 11. When if necessary, add coolant from the pipeline 24 to the tank 11.

 Open the valves 3 and 5, close the valve 8 and turn on the heat generator 1, in which the heating medium is heated. The operation of the boiler room is regulated by a valve 8, which can bypass part of the coolant, and the amount of energy consumed by the thermogenerator.

 When heating high-rise objects and objects with high hydraulic resistance, the pump head 6 may not be enough to ensure the normal operation of the heating system. In this case, the valves 20 and 23 are opened, and the valve 10 is closed. The ejector 18 increases the pressure of the coolant at the inlet (intake) of the pump 6, which leads to an increase in pressure at the outlet (discharge) of the pump and ensures the normal circulation of the coolant in the heating system of high-rise buildings.

 The coolant drain from the heating system when the boiler is stopped is prevented by check valves 25 and 26, as well as by a shut-off valve 13, the actuator 14 of which is triggered when the pipe 15 is filled with coolant. Before starting the boiler, the coolant must be drained from the pipe 15 and mechanism 14, after which the shut-off valve 13 will open.

Claims (1)

 A boiler room containing a make-up tank for the coolant, a heat generator and a circulation pump for supplying the coolant from the make-up tank to the heat generator, characterized in that it is equipped with an ejector, the suction pipe of which is connected to the make-up tank, the discharge pipe to the circulation pump inlet, and the working fluid supply pipe to the outlet from the circulation pump.