SU1211590A1 - Sootblower for cleaning external heating surfaces of boilers - Google Patents

Description

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The invention relates to the cleaning of heat exchangers during their operation and can be used in the energy industry for cleaning the exterior surfaces of boilers.

The purpose of the invention is to reduce the dimensions of the blower with rotational drive and the translational movement of the blower tube in the form of a screw pair.

The drawing shows a kinematical diagram of the blower.

The blower apparatus contains a frame 1, on which a carriage 2 is mounted with the possibility of translational motion. On the latter, a blower tube 3 with nozzles 4 is fixed for rotation, kinematically connected with a rotational drive in the form of an electric motor 5 with a gearbox 6, a low-speed gear wheel 7 of which is fixed on the blowing pipe 3. The latter is telescopically connected to the pipe 8 for supplying the blowing agent, attached to the frame 1.

A nut 9 is also rotatably mounted on the carriage 2, the axis of which is parallel to the axis of the blowing pipe 3. The nut 9 is kinematically connected to the latter by means of a chain transmission, the leading sprocket 10 of which is fixed to the blowing pipe 3, and the sprocket 11 is rigidly connected

Op I, Rybchenko 633/46

Compiled by “Slyshkin Tehred M. Nad

Cor Pod

Circulation 590 VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

11590

The nut 9 is connected with the drive chain 12. The nut 9 is associated with the lead screw 13 fixed to the frame 1 without rotation.

The blower operates in the following manner.

When the motor 5 is turned on, the gear wheel 10 is brought into rotation from the 7 gear 6 and the blower tube 3 connected with the wheel 7 with an asterisk 10. Lastly, via a drive chain 12, the sprocket 11 and a nut 9, which

15 interacts with the lead screw 13, informs the carriage 2 of the forward movement relative to the frame 1. The blower tube 3 is introduced into the boiler flue, the blower agent through the tube 8, the bottom of the blower tube 3 and the nozzle 4 is fed to the cleaned heating surfaces of the boiler. When the rotation of the electric motor 5 is reversed, the directions of rotation of the blower tube 3 and the forward movement of the carriage 2 change, the blower tube 3 is led out of the boiler duct and the apparatus returns to its original position. The advantage of the proposed technical solution is the reduction of the dimensions of the blower, which makes it possible to reduce the size of areas for its maintenance and the distance between the boilers.

Proofreader M. Maksimishinets

Claims (1)

BLOWING UNIT FOR CLEANING EXTERNAL HEATING SURFACES BOILERS comprising a frame, a carriage mounted on a carriage a blowing pipe with a drive for its rotation and translational movement In the form of a screw pair, characterized in that, in order to reduce the dimensions, the axis of the screw pair is parallel to the axis of the blowing pipe, and the nut is mounted on the carriage with the possibility of rotation and kinematically connected with the blowing pipe, and the lead screw is mounted on the frame without the possibility of rotation. FROM SU „, 1211590>