SU1663335A2 - Nadeliaev water boiler - Google Patents

Abstract

The invention relates to a power system and m. used as a heating boiler of small capacity. It allows to increase operational reliability and profitability. Radiation panel 1 is U-shaped with coverage around the perimeter of the combustion chamber 3, and in the lower part of the latter, a return-burning device 19 is installed counter to the flow of combustion products, made as part of a cylinder, wound up with the upper edge into the zone of lower rows of radiation panel pipes 1. The flow of combustion products strikes the external surface of the reciprocating burner, changes its direction and is directed to the front of the boiler, ensuring uniform filling of the volume of the combustion chamber 3 and, consequently, uniform th temperature distribution in the latter. 4 il.

Description

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The invention relates to a power system, can be used as a heating unit of low power and is an improvement of the device according to the author. St. Ns 1328645.

The purpose of the invention is to increase the operational reliability and efficiency.

FIG. 1 shows a water boiler, general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2; in FIG. 4, node I in FIG. 2,

The boiler contains radiation and convection panels -1, 2 installed respectively in the furnace, turning and convection chambers 3 - 5 with the formation of gaps 6 relative to the lining 7. The panels 1, 2 are made of pipes 8 transversely relative to the gas flow, equipped with rear and front vertical collectors 9, 10, made with partitions 11, and connected to the source of feed water (not shown) through the collectors 9 of the radiation panels 1. The boiler also contains a system of pipes 12 with guide plates m (not shown) that are perforated with holes. The pipes 12 are connected to a source of cleaning agent (not shown) and are transversely mounted relative to the gas flow on the opposite walls of the convective chamber 5 with the possibility of rotation around their axes and displaced relative to the pipes 8 of the convective panels 2, as well as relative to the pipes 8 of the convective pznel 2 relative to the same perforated pipes 12 on the opposite wall of the chamber 5. The bricking 7 is made of panel arats containing an inner layer of heat-resistant concrete or diatomite, having a thickness of 50-60 mm, section An air layer 10–15 mm thick from the outer insulating layer 50–60 mm thick, made, for example, of silica-limestone or solenite plates, covered outside by gas-tight coating.

Radiation panels 1 are U-shaped with coverage around the perimeter of the combustion chamber 3. In the upper part of the combustion chamber 3 there is a ceiling panel 13 with horizontal collectors 14. In the lower part of the combustion chamber 3 a return-burning device 15 is installed opposite the flow of combustion products parts of the cylinder, wound up with the upper edge into the zone of the lower rows of pipes 8 of the radiation panels 1. The boiler is equipped with a dispensing and collecting headers 16,17. Convective chamber 5 is connected

with flues 18. Convective panels 2 are connected to rear and front vertical collectors 19, 20, the distance between the upper and lower generators

pipes 8 semi-turn in each of the paired collectors 9, 10, 14, 19, 20 is equal to at least one diameter of the pipe 8.

Water boiler works as follows.

0 The feedwater flow from the source enters the boiler system through the dispensing manifold 16, where it is divided into two streams flowing further into the rear vertical collectors 9 located on

5, the rear wall of the combustion chamber 3 is symmetrical with respect to the longitudinal axis of the boiler and 30-40 mm apart (for ease of welding). From the collectors 9, the water enters the right and left packages of the radiation panels 1 connected to them along the side forming pipes 8. Passing through several horizontal pipes 8 of both packages, where the number of pipes 8 is limited by internal partitions 5, the water turns 90 ° and enters in front vertical collectors

10, which rises to the next internal partition 11, with the distance between the latter in the front collectors 10 not less than twice the distance between the similar partitions 11 in the rear collectors 9. Having changed the direction, the water flows through the next few pipes 8 in each

5 of the two packages of panels 1 re-enter the rear collectors 9, making an open loop. Pass all horizontal pipes 8 in both packs of panels 1 and carry out a successive lifting coil

0 movement throughout the entire system of panels 1, water from the rear collector 9 of each radiation panel 1 enters the rear horizontal collector 14 of the ceiling panel 13, reaches the nearest partition 11

5 and through several horizontal pipes 8 enters the front horizontal collector 14. After making one turn, the water changes its direction in the collector 14 by 180 ° and through the next several pipes 8 of the panel

0 13 enters the next segment of the rear horizontal collector 14, completing one open loop. From the rear horizontal collector 14, water enters the first segment of the rear vertical column of the lecturer 19 of the convection panel 2, where it reaches the first internal partition

11, and then through several horizontal pipes 8 of panel 2 passes into the first section of the front vertical collector 20 of the convective panel 2, bounded by an internal partition 11. At the same time, the water changes direction and the next several pipes 8 again flow into the rear vertical collector 19. After a certain the number of strokes of water from the last segment of the front vertical collector 20 enters the collecting manifold 17 and further into the boiler system feeding system. Since the water from the dispensing manifold 16 flows directly into the radiation panels 1, the temperature head in the combustion chamber 3 increases significantly, in addition, it helps to suppress corrosion on the outer surface of pipes 8. To squeeze the flow of combustion products from the rear wall of the combustion chamber 3 to the front wall as well as to maximize the heat loss from chemical and mechanical underburning and to reduce the thermal sweep on the back wall in the lower part of the combustion chamber 3 is set back-burning device 15, the incident on which the flow of combustion products changes direction and is directed to the front wall of the combustion chamber 3, which ensures 0

dimensional filling of the volume of the combustion chamber 3. The device 15 can be made of heat-resistant concrete on the reinforcing mesh.

Making the distance between the upper and lower generators of the pipes 8, a half-turn of at least one diameter of the pipe 8 ensures a uniform flow of water through all the pipes 8, which eliminates the formation of scale. The lifting movement of water from bottom to top ensures reliable circulation and air exhaust.

Claims (1)

The invention of the water boiler according to ed. St. Nfe 1328645, characterized in that, in order to increase operational reliability and efficiency, the radiation panels are U-shaped with coverage around the perimeter of the combustion chamber, and in the lower part of the latter, a return-burning device installed in the form of a cylinder portion installed the upper edge to the zone of the lower rows of pipes of the radiation panels. M (Reg. 1 t Ш2