SU1210016A1 - Straight-through hot-water boiler (its versions) - Google Patents

Abstract

1. A boiling hot water boiler containing heating surfaces with collectors connected to the inlet and outlet pipelines of the supply water, the last of which is connected to the input end of the recirculation line, characterized in that, in order to increase economic efficiency and reliability by protection of heating surfaces from low temperature corrosion. The inlet headers of heating surfaces are connected in parallel with the inlet pipe of the supply water in parallel through additionally installed control valves, and the outlet end of the recirculation line is connected to the inlet of the first heating surface along the water. 2. A continuous boiling boiler containing heating surfaces with collectors connected to the inlet and outlet pipes of the supply water and a recirculation line to the inlet and outlet ends, in order to improve efficiency and reliability and .m protecting the heating surfaces from low temperature corrosion, the inlet headers of the heating surfaces are connected to the supply water supply pipe in parallel through the additionally installed control valves, the input end of the recirculation line The key to an outlet header and an outlet end - to the inlet manifold downstream of the first water heating surface. w (lu 05

Description

The invention relates to energy and can be used in boilers burning sour fuel.

The aim of the invention is to increase the economy and reliability by protecting the heating surfaces from low-temperature corrosion.

FIG. Figure 1 shows a flow boiler with a recycle line connected to a branch pipe and

temperature corrosion is fed through a recirculation line 13 by pump 16 to part of the heated water from the discharge pipe 12. The rest of the water is supplied to the consumer.

The water in the surface I is heated and enters the inlet manifolds 7 of the surface 2. There also from the supply pipe And through the control valves 18 supply water from the supply pipe 11 in an amount preventing from reducing the first heating surface (the first temperature water in the inlet manifolds / below the corrosion level specified. Further, as the water moves and is heated in the surfaces 3 and 4 of the heating, water from the supply pipe 11 is further mixed with it, adjusting

vy option); in fig. 2 - the same, with a recirculation line connected to the outlet and the inlet of the first heating surface (the second option).

Pr warmer boiler (Fig. 1

and 2) contains heating surfaces 1–4 with 5 flow rate control valves 19 and 20 and manifolds 5–10, connected to the sub so that the water temperature

Inlet headers 8 and 9 also did not fall below the permissible levels of corrosion.

2Q The continuous boiler of the second variant (Fig. 2) works in a similar way and ensures the achievement of the same goal, only by heating a part of the water supplied from the supply pipe 11

11 and outlet pipelines 12 of the supply water pipe, recirculation line 13 with inlet 14 and outlet 15 ends and pump 16, and the inlet headers 5–9 of heating surfaces 1–4 are connected in parallel with supply pipe 11 of the net water through regulating valves 17-20. According to the first variant (FIG. 1), the output end 15 of the line 13 is recirculated through the control valve 17 into the inlet

The heaters are connected to the inlet of the first along the 25 collector 5 of the heating surface 1, and through temperature corrosion, the recirculation line 13 supplies 16 of the heated water from the discharge pipe 12. The rest of the water is supplied to the consumer.

The water is heated in the surface I and enters the inlet manifolds 7 of the surface 2. There also from the supply pipe And through the control valves 18 supply water from the supply pipe 11 in an amount preventing from reducing / below the corrosion level specified. Further, as the water moves and is heated in the heating surfaces 3 and 4, water from the supply pipe 11 is additionally mixed with it, regulating

 flow control valves 19 and 20 so that the water temperature during

through the control valve 17 in the input

Water surface 1 of heating, according to the second embodiment (Fig. 2), the input end 14 of the recirculation line 13 is connected to the output collector 6, and the output end 15 to the input collector 5 of the first heating surface along the water flow.

During the operation of the direct-flow hot-water boiler according to the first embodiment (Fig. 1), part of the heated water from the supply pipe 11 is fed through the control valve 17 to the inlet manifold 5 and there too; the surface 1 is lowered by supplying hot water to them recirculation line 13 heated in heating surface 1.

A boiling boiler makes it possible to reduce the water flow through the recirculation line 13 in proportion to the reduction of water flow through the control valve 17 from the supply pipe 11, reduce the hydraulic resistance of the boiler path, the power of the recirculation pump 16 and the main pumps and, accordingly, increase efficiency and reliability, / g

Compiled by Y. Nestroyev

Editor G. VolkovaTehred I. Zerescorrector O. Lugova

Order 501/49 Circulation 650 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (2)

DIRECT WATER BOILER (ITS OPTIONS). 1. Direct-flow hot water boiler containing heating surfaces with collectors connected to the supply and outlet pipelines of the network water, the last of which is connected to the inlet end of the recirculation line, characterized in that, in order to increase efficiency and reliability by protecting the heating surfaces from low-temperature corrosion , the input collectors of the heating surfaces are connected to the supply pipe of the network water in parallel through additionally installed control valves, and the output end of the recycle line circulation is connected to the input of the first heating surface along the water. 2. Direct-flow hot water boiler containing heating surfaces with collectors connected to the supply and outlet pipelines of the mains water and a recirculation line with inlet and outlet ends, characterized in that, in order to increase efficiency and reliability by protecting the heating surfaces from low temperature corrosion, the inlet collectors of heating surfaces are connected to the supply pipe of network water in parallel through additionally installed control valves, the inlet end of the recirculation line is connected to yhodnomu manifold and the output end - to the inlet manifold downstream of the first water heating surface.