CHEMICAL WATER TREATMENT SYSTEM FOR BOILER HOUSES Russian patent published in 2024 - IPC F17D3/12 C02F1/68 

FIELD: heat power engineering.

SUBSTANCE: invention relates to heat engineering and can be used in water treatment systems for dosing reagents in boiler houses and heat stations. Chemical water treatment system for boiler houses comprises: main pipeline 1, suction pipeline 15 connecting chemical reagent tank 2 with main pipeline 1 through channel 20 with inlet 4 and outlet 5 valves of membrane dispenser 3, including dispenser 6 and drive 8 chambers, separated by membrane. According to the invention, bypass pipeline 14 is connected to main pipeline 1 in front of suction pipeline 15, on which there are successively installed two valves 16 and 17 controlled by the moment of opening/closing, operating in an alternating mode, and between them branch pipe 19 is connected, which connects bypass pipeline 14 with drive chamber 8 of membrane dispenser 3. In the housing of membrane dispenser 3 there is an assembly including separating ring 11, in which channel 23 is formed, which connects the cavity of separating ring 11 with the ambient atmosphere. Membranes 7 and 9 are secured on two opposite sides of separating ring 11, one of which, larger in size, faces drive chamber 8, and the other, smaller one, faces dosing chamber 6. Pusher 10 is arranged between membranes 7 and 9. In membrane dispenser 3 on the side of one of membranes 7 or 9 there is return spring 21.

EFFECT: simplification of chemical water treatment system, improvement of its reliability and accuracy of dosing for possibility of use, including in small-size boiler houses.

4 cl, 1 dwg