SU17234A1 - A device for changing the heat load of the heating surface of boilers, superheaters, economizers, etc. - Google Patents

Description

, D to intensify the lightly loaded heating surface on the one hand, and on the other to relieve the heat from the heat pipe facing the pipe) of the first row, in order to obtain a maximal one. increase the efficiency of the heating surface, in the proposed device for changing the heat load of the heating surface of the boilers, heat exchanger, economizers, etc., clause, consisting of a system of ribs and sleeves mounted on heating pipes; ave; burs, fins or 1: elliptical in shape and provided with two openings, one of which freely encompasses the front pipe to protect it from heating with radiant heat, and the other to strengthen the rib on the rear pipe with a chain increasing the amount of heat perceived by this pipe; The sleeves and the cracker are installed between the ribs, of refractory material, and in order to simplify the installation, the ribs are made into a curved shape, and they are welded to the pipe to be intensified, and the legs are spread around the protected pipe.

In FIG. 1 shows a torspective view of the device, FIG. -2 is a top view with the legs apart, FIG. 3-side view with the installation of bushings and crackers, FIG. 4 is the same above. , . ;

Pipes 1 and 2 are supplied so that pipe 1 directly perceives the pressure from the heat flux, and pipe 2 at the back, as if in heat shade; These pipes: holes 6 and 5 are wearing ribs 3, 4 of an elongated shape made of a material with a higher thermal conductivity, with an opening of 6-larger diameter than the pipe 1 that passes freely through it and hole 5 of the same diameter with welded k the edge of the pipe 2. The opening 6 is put on the pipe 1 С5 by calculating that around the pipe in OTseti there is a edge space in the edge of the heat flux, especially the radiant heat, will appear in this place picked up by the edge, as it protrudes forward, will be self perceive heat heat pipe 1 and the shade, but because self p ebro strengthened on the pipe 2, then, naturally, the heat absorbed by the rib, due to temperature difference and a large

heat conduction is given to pipe 2. Thus, unloading pipe 1 from. the effect on it of a direct flow of heat, loading pipe 2 in this section.

The shape of the ribs, redistributing heat through the pipes, depending on local conditions, may be different; in order to simplify the production of the initial installation, the heat transferring edge is given an alcover shape (Fig. 2); here, the fins are composite and are completely independently stamped parts that are welded to the tube 2j in the shape shown in FIG. 2 by a dotted line, and then, after mounting, these fins envelop about pipe 1, to form the shape shown in fig. 2 form

To further reduce the heat load and create an even greater thermal shade on the pipes 1, the last edges 5, 5 (Fig. 3 and 4) fit the sleeves 4 of refractory material, and the Crackers 3 are also made of refractory material between the pipes; on the one hand, the sleeves 4 shade the pipe 1, and on the other, reduce the active surface of the ribs, cast, burn, fire, and thus prevent the latter from burning. The croutons 3 mainly protect the ribs from fire, and, on the other hand, heat themselves, transport them to the back of the pipe, lightly loaded with heat.

The sleeves 4 impede the heat transfer to the pipes 1, therefore the hot gas retains its heat longer and, with it, the pipes more distant from the firebox reach with it, thus, by increasing the heat transfer coefficient, intense heat transfer to the backs of the pipes. measures are meant to achieve better heat distribution of laziness over the boiler, economizer; to the driver, or to a general tubular system for liquid and gas in all cases of heat transfer.

Iredmetpatent.

1. A device for varying the heat load of a heating surface of boilers, superheaters, economizers, etc., consisting of / from a system of fins and sleeves mounted on pipes of heating apparatus, characterized by the fact that ribs 8 and 4 are elliptical with two holes 5 and 6, from which holes one serves to freely pass the front pipe, in order to protect it from radiant heat, the second to strengthen the rib on the rear pipe in order to increase the amount of heat perceived by this pipe.

2 A modification of the device described in clause 1, characterized by the use of a fork shaped welded to the Zrebr pipe (Fig. 2X, legs 3 and 4 of which edge in order to simplify the installation are diluted, followed by bending them around the protected pipe 1.

3. Modification of the device described in Section 1, characterized by the use of ribbed protection of the front p dubar Hfig. 3) sleeves 4 and crackers 3 tsz refractory material, and, mounted on the protected pipe 1 between the ribs 5

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