DE26111C - Ii. Steam boiler with conical flame tubes - Google Patents

Description

IMPERIAL

PATENT OFFICE

The present invention aims to generate steam as economically as possible complete combustion of the fuel without compromising safety and without increasing the space occupied by the boiler. It also aims at the Provide steam boiler with a feed water preheater in which the water not only heated, but also from the solid constituents by which it contaminates is, is freed, and which furthermore an almost constant water level in the kettle receives.

In the drawings, FIG. 1 shows a vertical longitudinal section of a steam generator built afterwards. FIG. 2 is a horizontal section along line XX through the dome and the preheater, FIG. 3 is a half vertical section along line Y-Y and FIG such according to the line ZZ, FIG. 5 a horizontal section above the grate and FIG. 6 a view of the fire door.

The boiler mainly consists of two horizontal cylinders A and A ¹ and two conical flame tubes B and JB ¹ . The cylinders are connected to one another along their entire length by the angle plates C C 'and united at their ends by the plates DD ^{1 connected to the fire pipes.} The upper cylinder carries a dome E, which is provided with stud bolts e ^A , as well as a preheater F, which in turn is equipped with water inlet T, drain cock O and manhole V. The fire tubes are concentric with the cylinders and closed at their ends, with the exception of the front end of the lower tube, by removable covers bb ¹ P , which are clad with refractory bricks. An upright pipe H connects the rear ends of the fire pipes BB '.

The lower tube contains a grate 1, which is surrounded on the long sides by fireproof masonry i and at the rear by the fire bridge J, which is also made of fireproof material. A partition K made of refractory bricks and a circulation pipe L are also arranged in this pipe. The upper pipe contains a circulation pipe Z ¹ and carries the chimney M surrounded by the dome E.

The partition K is built of hexagonal stones which interlock and have openings k which are inclined at such an angle that the ashes and the call which have accumulated in them slide back into the space behind the fire bridge by their own weight, and furthermore the combustion gases assume an ascending direction as they pass through the partition wall and are heated sufficiently to ensure complete combustion at all times.

The circulation pipes L and Z ¹ connect the lower part of each flame pipe BB ⁱ with the upper part of the same and contribute to the circulation

Claims (4)

lation of the water. The middle section of both circulation pipes is horizontal and conical, so that their diameter increases in the direction of movement of the combustion gases. The wide end of each circulation pipe is also connected to the base of each flame pipe by a short pipe / bezw. / 'connected to prevent the accumulation of sludge in the circulation pipes. The fire door can have any suitable device or the special construction shown in FIGS. In the latter, the fire door has the shape of a hollow body N, which is open to the hearth and one side. The door rotates around a bolt or spindle P and contains several parallel sheet-metal plates η η, which are bent so that the air entering from the side is directed towards the combustion chamber. The purpose of these plates is to collect some of the heat given off by the fire, and thus to warm the air before it reaches the fuel, thereby at the same time keeping the fire door cool. A flap S rotatable about a horizontal axis ί is mounted in the opening r, through which air enters the fire door frame B and thereby into the fire door. This flap serves to regulate the amount of air; its movement and position depend on the movement of the fire door N and a clockwork Q as follows: The spindle JP carries a ratchet wheel p and a gear wheel p1, which engages with another gear wheel p2, which is on a vertical Spindle O is seated, which also carries a conical wheel ο which engages in a wheel c1 attached to the axis ί of the flap. One end of a cord g is attached to this wheel, which goes over a roller of the clockwork Q and carries a weight ^ 1 at the other end. When the latch is engaged and the door is opened, the gears / 1/2 also turn !? and o1, which opens the flap and unwinds the weight ^ 1. If the door is now closed, the ratchet ps slides over the ratchet wheel p without closing the flap. The same is then slowly closed by the weight gl, the movement of which is regulated by the clockwork. The latter can be adjusted by moving the pointer to the appropriate place. To open the door without moving the flap, one need only pull back the latch nx. The preheater F, Figs. 1 and 2, is connected to the steam dome E by tubes f1; 1, of which the lowest e is provided with a flap e3 which is adjusted by a float so that the rising and falling of the water in the preheater, the flap closes and opens automatically and as required. The water tank F is also connected to the upper part of the boiler A by pipes f1 / 2 which reach up to approximately the mean water level of the tank F. The container F is provided with an inlet pipe T, a mud tap O and a manhole V. As long as the water in the kettle is at normal height, the water in the container F communicates with the water in the dome through the pipe e / the valve and the valve. the flap e3 remains closed and the solids contaminating the feed water have the opportunity to collect on the bottom of the container, from where they can be removed by the sludge tap O. However, as soon as the water in the kettle falls below pipe e1 or any other allowable limit for which the valve and float are set, valve e3 opens and allows the water to flow into the kettle through pipe e. The boiler is provided with a cleaning or drainage tap G and with the usual boiler fittings and fittings. If the steam generator is to be portable, which is assumed in the drawing, it is provided with iron bands a or other supports; if it is to be stationary, it is walled in and the grate is placed under the boiler instead of in the lower fire tube. Pa ten τ-An Proverbs: 1. A steam generator with two conical fire tubes, in which these Pipes are arranged one below the other in such a way that the combustion gases are first released from the widen towards the narrow end of the lower tube, and then stroke from the wide towards the narrow part of the upper tube. 2. A steam generator consisting of two parallel, cylindrical, and with each other communicating boilers and two conical fire or smoke pipes, each of which is in one of the two boilers It is advisable that the combustion gases should first flow from the wide to the narrow part of the lower tube, and then from stroke the wide towards the narrow part of the upper tube; and on the same: 3. The arrangement of the conical circulation pipes L Z ¹ within the flame pipes BB \ 4. One behind the fire bridge and made of refractory bricks Transverse wall, which is provided with openings, which run at such an angle that the combustion gases ascending direction and the ashes and accumulated in these openings Reputation can slide back by virtue of its own weight. A closed feed water preheater mounted on a steam generator and is connected to it or to the steam dome by means of tubes in such a way that One is placed at about the mean water level and is in constant communication with the steam generator or boiler, while the other, close to the ground, is closed by a valve which is opened by means of a float as soon as the water falls below the permissible limit sinks;
the composition proven by drawing. For this purpose ι sheet of drawings.