DE31925C - Use of artificial solutions with very high boiling points as boiler water to generate superheated steam - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 13: Steam boiler and equipment.

F. ENGEL in HAMBURG.

Generation of superheated steam.

Patented in the German Empire from la. October 1884.

This invention consists primarily in the fact that one more than the feed liquid of the boiler or less concentrate solution of caustic soda, nitric acid ammonia or others Salt, which has a very high boiling point, is used, for the purpose, in the boiler Generate superheated vapors in place of the saturated vapors of a water-fed one Boiler. The higher the boiling point of the feed liquid, the higher the degree the overheating of the generated steam and the higher its efficiency be.

The use of soda solutions or other liquids with a very high boiling point as a feed liquid for steam boilers enables the production of an operating system, which has the advantages of a condensation steam engine without adding cooling water without causing the heat losses associated with the cooling water.

The device in this case consists in the fact that it is not the generated steam, but rather the steam the aforementioned solution, which is under the pressure of the steam, for operating a hydraulic motor is used, and that the liquid leaving the engine, which is very high Temperature, is returned directly to the boiler by means of an injector. Since the boiler steam in this case always, respectively, according to the degree of concentration. the Height of the boiling point of the solution is overheated, then that of the injector will be Boiler steam act more energetically, and since, furthermore, this direct boiler steam is not caused by the Cooling, as is the case with ordinary water, but by the well-known chemical The action of the alkali to absorb vapors in a very considerable degree condenses the heat level of the feed liquid can be a very high one and that of the saturated steam by far without causing the injector to take effect. It So a hydraulic motor will be formed, which BEZW with sodium hydroxide solution. with another Liquid of very high boiling point is driven, and at which the injector with the help of the superheated direct boiler steam generated from the lye, the hot Returns liquid to the boiler.

In order to cool the concentrated caustic solution of the boiler supplied to the hydraulic motor before. the same leaves the boiler respectively. before it enters the engine, and at the same time this heat dissipation The following procedure can be used to make it usable for the boiler.

Several compartments abc ... are arranged in the kettle, which contain solutions of different concentrations, in such a way that the first compartment α contains the most concentrated solution, while in b there is somewhat more dilute, in c even weaker, and so forth. The compartments communicate with one another in such a way that with a certain filling of the compartments the fluid can pass from one vessel into the next.

If the operating fluid is then taken from section a, this solution, because it is the most concentrated, has the highest degree of warmth; each subsequent division contains a solution which is less hot, and the last division, for example division h, contains the most dilute, i.e. the least

Claims (4)

hot liquid. By now, through a pipe system, the solution taken from α beforehand through all other departments respectively. is passed through some of them, the hottest solution can be cooled to approximately the temperature of the least hot solution before it is then passed further into the engine, and this given off heat remains in the boiler to generate steam. The cooled, concentrated solution then drives the motor and is then returned by an injector, as described above, to the kettle, namely to compartment h, which contains the most dilute solution. It overflows from h into the adjacent division and gradually progresses to division a, where it gradually concentrates again with the release of steam. Accordingly, under the action of the firing of the kettle, there is a constant, progressive concentration of the solution in the kettle, with the formation of vapor under constant tension in all sections. The circulation of the solution takes place with automatic regulation caused by the temperature differences of the boiling points. If the compartments in the boiler are so completely separated from one another that the steam rooms communicate through the tubes in such a way that the vapor of one part with diluted Liquid through the liquid of the neighboring or another division With a concentrated fluid flowing through it, heat is absorbed from the stronger one and therefore hot fluid takes place, and one achieves with the same tension in the various Partitions of vapors which are more and more superheated, the higher the degree of concentration of the liquid. The Injector steam is then expediently taken from the compartment with the most superheated Steam. An advantage of this boiler system will be that that of ordinary steam boilers for the operation of condensation machines made usable with the cooling water lost heat while taking the necessary precautions to achieve expansion fall away. Also, since the boiler water renewal is omitted, an essential one Simplification of the boiler operation. Instead of arranging the aforementioned departments in the steam boiler itself, you can also separate boilers which communicate with each other and with the steam collector are used to accommodate the solutions of different degrees of concentration to which then the heat of the most concentrated solution used to operate the engine, so far as this seems appropriate, can be submitted. If the boiler is used to operate a steam engine with superheated steam, so the kettle, once provided with solution, is to be fed with water in the same degree as it Steam is withdrawn. Here you can also use several compartments in the boiler or several Boilers filled with solutions of different strengths are expediently included in the compartment Introduce the weakest solution, in the same way as previously described in of the section to produce the most superheated steam with the most concentrated solution. The steam is then taken from the boiler from this compartment. ..Pa τ en τ claims: ι. The use of artificial solutions with a very high boiling point as boiler water of overpressure steam boilers, which are heated by fire and a constant Allow operation. 2. At one with the under i. The solutions listed above are powered by steam boilers several departments or in connection with the same several separate boilers for the purpose of production of superheated steam from the furnace in such a way that the feed water is fed to the compartment with the weakest solution the steam of this division as well as that of the following divisions passed through the compartments with more concentrated solutions is used in order to add the most superheated steam in the last section from which the boiler steam is taken achieve. 3. The application on a steam boiler fed with the solutions listed under 1. a hydraulic motor and. Injectors in such a way that those under pressure The solution of the boiler steam is used to operate the engine, and that the injector is by means of the direct boiler steam returns the used operating fluid to the boiler. 4. The arrangement on a steam boiler fed with the solutions listed under 1. various departments or secondary boilers connected to the steam space of the boiler and among each other, which contain solutions of different degrees of concentration, for the purpose of the heat for the operation of a hydraulic engine used the more concentrated solution before entering the engine on the weaker and therefore less hot solutions respectively to partially transfer their vapors and to cool the most concentrated solution.