JPS5914597A - Heating gas engine facility in submarine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to heating gas engine equipment in a submersible.

It is known to equip the heating device of a heating gas engine in a submersible with a heat-generating device which operates at a pressure in the device that is higher than the pressure in the respective position or maximum diving position of the submersible. The reason for applying a high system internal pressure is that the combustion gases must be discharged outside the boat after passing through the heating system. This requires very large conduits and possibly a complex mass of power consumption. External exhaustion of combustion gases is also disadvantageous, especially in the case of military submersibles.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a heating gas engine for a submersible with a heat-generating device which, with the use of a given amount of fuel and oxidizer, allows a better efficiency of the overall system and a greater operating range of the submersible than was previously possible. It is to be attached to a heating device.

This object is achieved according to the invention in a heated gas engine installation in a submersible by the combination of the features defined in claim 1. Advantageous embodiments and variants of this solution are described in the patent claims 2 to 12.

Regardless of the pressure at the diving position and no overpressure, or about 6
The feature of the present invention is that a heat generating device that operates at a pressure as low as pearl is installed in the heating device of a heating gas engine.
Compared to devices that work depending on the pressure in the submerged position, a lower space requirement of the entire heating gas engine installation, a very low weight and an overall extremely simple construction are ensured. Furthermore, the reflux of the exhaust gas or exhaust gas components according to the invention results in a significantly higher efficiency of the heat-generating device and thus of the overall device. Furthermore, because a limited amount of fuel and oxidizer is entrained during the return of the exhaust gas or exhaust gas components, a greater range of the submersible and a longer service life of the equipment are achieved.

Owing to the fact that there is no release of substances, in particular combustion products, overboard, the heated gas engine installation according to the invention is suitable for use in military submarines. Furthermore, it is also advantageous for the positional stability of the submersible that when using the heating gas engine installation according to the invention, virtually no fluctuations in the boat's heavy electrical power due to consumption of fuel and oxidizer occur. found. Exhaust gas treatment can be carried out by simple means. Storage of separated water and roxin dioxide can also be accomplished in a manner that requires less weight and space. This is because the weight and volume of a cryostat storing liquefied carbon dioxide is smaller than a pressure tank storing carbon dioxide in concentrated gas form. Furthermore, the energy absorption for liquefying carbon dioxide is significantly lower compared to compressed storage in tanks.

Further advantages of the invention and details of the device are described below with reference to embodiments of the drawings.

In the figure, reference numeral 1 indicates a heating device provided in a heating gas engine 2, which is a component of heating gas engine equipment in a submersible. The heating device usually consists of a heating tube.

The heating tubes are usually constructed in a tube grid and project into a heating chamber through which the combustion gases flow. The combustion gas releases thermal energy to heat the heating tube, which provides at least a portion of the absorbed thermal energy to the working medium of the heated gas engine flowing through the intermediate tube.

In order to sufficiently generate combustion gases having a corresponding heat capacity, the heating device 1 of the heated gas engine 2 is equipped with a heat generating device. The entire structure is shown in FIGS. 1 to 3. According to the invention, such a heat generating device is constructed so that it can be operated independently of the pressure of the outside air and the pressure of the diving position and without overpressure or with a pressure as low as about 6 par. Apart from variations in the detailed structure, the heat generating device according to the invention generally consists of the following components: a combustion device to which fuel, oxygen and recirculated exhaust gas or exhaust gas components are supplied for producing combustion gas; oxygen; or equipment for storing oxygen carriers, equipment for producing oxygen for combustion and for heating it, means for utilizing exhaust gas heat for preheating oxygen or oxidizing agent, and supplying at least part of the exhaust gas or exhaust gas components to the combustion equipment. Heating device 1, including means for refluxing the tank
A device for utilizing the exhaust gas after passing through, a means for separating the exhaust gas into its components water and carbon dioxide, a means for liquefying these components, and a device for storing these liquid components in the submersible. encompasses the means;
Equipment for exhaust gas treatment.

In the figure, the combustion device is indicated by 3. 4 indicates a fuel tank. From there, the fuel is delivered to the combustion device 3 by a supply pump 5.
sent to. As fuel, virtually any gaseous or liquid hydrocarbon can be used, such as propane, butane, benzene, gas oil or methanol. In the case of the heat generating device according to FIGS. 1 and 2, the oxygen necessary for carrying out the combustion is stored in liquid form at a temperature of approximately -185 DEG C. in a corresponding tank 6. In the case of the heat generating device according to FIG. 3, hydrogen peroxide, also known as T-substance, is used as the oxygen carrier instead of liquid oxygen. This is likewise stored in a corresponding tank or vessel 7 in liquid form and at room or ambient temperature in the submersible.

In the heat generating device of FIGS. 1 and 2, an evaporator 8 is connected after the storage tank 6 as a further device for producing oxygen for combustion.

The evaporator brings the required amount of oxygen into a gaseous condensed state and at a temperature of approximately 0°C. In contrast, in the case of the heat generating device according to FIG. 3, oxygen for combustion is produced in sufficient quantities only by decomposition of the hydrogen peroxide. For this purpose, a decomposition device 9 is provided, to which the required amount of stored hydrogen peroxide is sent by means of a feed pump 10. The supplied hydrogen peroxide is decomposed into water vapor and oxygen in the decomposition device 9 at a temperature of about 700°C.

A preheater 11 is used as a device for heating the mixture before supplying it to the combustion device 3. The recirculated exhaust gas flows through the preheater 11 and is heated.

The oxygen or the oxygen/steam mixture flowing through the preheater 11 is heated there to approximately 800-850°C. The thermal energy required for this heating is provided by the exhaust gas which, after flowing through the heating device 1 , is sent via a conduit 12 to the preheater 11 . Second
In the variant according to FIGS. and 3, an exhaust gas blower 13 is also provided in the line 12 for feeding the recirculated exhaust gas. Oxygen or oxygen heated in a preheater/
The vapor mixture is sent to the combustion device 3 via conduit 14.

In the case of the heat generating device according to FIG. 3, a preheater 11 is connected after the decomposition device 9 with respect to the flow direction of the decomposition products - water vapor and oxygen.

Furthermore, in this apparatus, a heat exchanger 15 heated by the exhaust gas flow is connected upstream of the decomposer 9 in the flow direction of the supplied hydrogen peroxide. Isothermal exchanger 15
Therein, the hydrogen peroxide is heated to a temperature of approximately 100° C. by heat radiation from the exhaust gas flowing through the conduit. Heat exchanger 15 is therefore a first heating stage for hydrogen peroxide stored at near or ambient temperature. On the other hand, preheater 1-1 is at the second heating stage. In the preferred embodiment shown in FIG. 3, the exhaust gas that has flowed through the preheater 11 is conducted in somewhat cooled form via a line 16 to a heat exchanger 15 and is further cooled there. It is of course also possible to conduct the exhaust gases which have not previously flowed through the preheater 11 directly into the heat exchanger 15, for example via a corresponding line branching off from the line 12.

The essential reason why the heat generating device according to the invention has a higher efficiency than the known devices is that, according to the invention, means are provided by which the exhaust gas or exhaust gas components can be at least partially returned to the combustion device 3. . By means of the refluxed exhaust gas, the oxygen or the oxygen/steam mixture is brought to a relatively high temperature before being led to the combustion device 3.

This naturally makes possible the production of hotter combustion gases and therefore a greater release of thermal energy to the heating device 1. In the case of the device according to FIGS. 2 and 3, a pipe 17 is provided which reintroduces a portion of the combustion gas stream after it has passed through the heating device 1 directly into the combustion device 3. In that case, the line 17 branches off from the line 12 leading the exhaust gas to the preheater 11 and the line 14
Open inside. The conduit 14 connects the preheater 11 and the combustion device 3 and supplies oxygen or an oxygen/steam mixture to the combustion device 3. In contrast, in the case of the heat generating device according to FIG. 1, not the exhaust gas but a part of its constituent carbon dioxide is refluxed. The same partial quantity of carbon dioxide is sucked by a blower 18 from a water separator 19 (detailed below) and fed into a conduit 20 leading from the tank 6 to the preheater 11. The feed point 21 , where the pipe 22 conducting carbon dioxide connects with the conduit 20 , is located between the oxygen evaporator 8 and the preheater 11 . Since the carbon dioxide supplied to conduit 20 still has some residual heat, for example 40°C, it also has the effect of preheating the oxygen leaving the evaporator at around 0°C. After the feed point 21 , a gaseous mixture of carbon dioxide and oxygen is therefore led via line 20 to preheater 11 . The mixture is heated by flowing through a preheater and is then fed via conduit 14 to combustion device 3 . Since the oxygen flows through the preheater 11 not in pure form but mixed with carbon dioxide and preheated thereby, the gaseous mixture enters the combustion device 3 with a higher thermal energy capacity even after passing through the preheater. Inflow.

A further feature of the heat generating device according to the invention is that exhaust gas treatment means are provided. In that case, heating device 1
, preheater 11 and the device according to FIG. 3, it should be noted that the exhaust gas flowing through the heat exchanger 15 is
It is then guided to a connected device for processing. The water separator 19 described in connection with the apparatus of FIG.
It is also used in the case of the device shown in the figure, and forms part of the exhaust gas treatment means. In the water separator 19, moisture is condensed from the supplied exhaust gas, separated, captured and pumped on-site to the water storage tank 23 of the submersible. The carbon dioxide separated from the water in the water separator 19 is sucked in by a downstream carbon dioxide liquefier 24, e.g. a cryo-pump, liquefied and led to the corresponding storage tank 25 - cryo-reactor - about 6 It is stored in the submersible in liquid form at pearl pressure and a temperature of about -50°C. The exhaust gas typically also contains gaseous impurities that are not liquefied in the carbon dioxide liquefier 24, such as argon, nitrogen, nitrogen oxides, or sulfur oxides, which interfere with the suction and liquefaction of carbon dioxide by the carbon dioxide liquefier 24. 26 is provided to suck the gaseous impurities mentioned above from inside the carbon dioxide liquefaction device 24 and send them to the pressure tank 27 . Pump 26 is then regulated as a function of the pressure value. The pressure is carbon dioxide liquefaction equipment 2
4 is detected by a pressure sensor located within or adjacent to the pump 26 and sent to a control device for the pump 26.

Instead of pressure tank 27 and pump 26, an adsorption device can also be used.

To reduce the weight of the submersible, the water storage tank 23 is equipped with an on-off valve 2.
8 and a water pump 29 are attached, and water can be pumped out of the boat when necessary.

[Brief explanation of the drawing]

FIG. 1, FIG. 2, and FIG. 3 are drawings showing each embodiment of the device of the present invention.

Claims (1)

[Scope of Claims] 1. In the heating gas engine equipment in the submersible, the heating device (1) of the heating gas engine (2) is provided with no overpressure, regardless of the pressure of the outside air and the pressure at the diving position. Approximately 6 boats
It is equipped with a heat generating device which operates at a pressure as low as 1 ton (3), which is a combustion device to which fuel, oxygen and recirculated exhaust gas or barge exhaust gas components are supplied. Equipment for storage of oxygen or oxygen carrier (6°7). Equipment for generating the oxygen necessary for combustion and for heating the same elements (
8,q,xoL Includes means for utilizing exhaust gas heat for preheating the oxygen or oxidizer and means for circulating at least a portion of the exhaust gas or exhaust gas components back to the combustion device (3). 7
10 Equipment (11, 15) for utilizing the exhaust gas after passing through the heated 1F (1), means for separating the exhaust gas into its components water and carbon dioxide (19), and liquefying these components Heating gas engine in a submersible, characterized in that it has a device for exhaust gas treatment, comprising reservoir means (19, 24) and reservoir means (23, 25) for storing these liquid components in the submarine. Facility. 2. Heated gas engine installation according to claim 1, wherein the oxygen or hydrogen peroxide as oxygen carrier is stored in liquid form in corresponding tanks or containers (6, 7). 3. As a device for generating the oxygen necessary for combustion from liquid oxygen stored in a tank or storage container (6), the necessary amount of oxygen is brought into a gaseous condensed state and at a temperature of about 0°C or higher. 3. Heated gas engine installation according to claim 1, characterized in that an evaporator (8) is connected after the storage vessel. 4. The required amount of hydrogen peroxide, supplied by the feed pump (10), is approximately 3. The heated gas engine equipment according to claim 1 or 2, characterized by a decomposition device (9) that decomposes into water vapor and oxygen at a temperature of 700°C. 5. In order to heat the oxygen in gaseous agglomerated state, which is supplied to the combustion device (3), a preheater (11) is provided which is heated by the recirculating exhaust gas and brings the oxygen flowing through it to a temperature of approximately 800-850°C. Claims 1~
The heating gas engine equipment according to any one of paragraph 4. 6 When using hydrogen peroxide as an oxygen carrier, with respect to the flow direction of water vapor and oxygen, which are decomposed components,
A preheater (11) is connected after the decomposition device (9), and a heat exchanger (15) heated by the exhaust gas to heat the hydrogen peroxide to a temperature of about 100°C is connected to the hydrogen peroxide flowing through it. There is. '#Heating gas engine equipment as set forth in claim 4 or 5. 7. A device for treating the exhaust gas which, after flowing through the heating device (1), has given the thermal energy capacity it still contains to the preheater (11) or the preheater (11) and the heat exchanger (15), against the flow direction. It is connected after the above device. '# Scope of claims 1st
Heated gas engine equipment according to any one of Items to Items 6 (/-1). 8 The equipment for exhaust gas treatment removes moisture from the exhaust gas as a means of separating the exhaust gas into water and carbon dioxide. water separator (19) for condensing, separating and capturing; k water storage container (23) for storing said water which is sent without the use of bonzos or water; separated in the water separator (19); a carbon dioxide storage vessel (24) connected afterwards for aspirating and liquefying the liquefied carbon dioxide; Heating gas engine installation according to any one of claims 1 to 7, comprising a carbon dioxide storage vessel (25). 9. A pipe (17) is provided which reintroduces a part of the exhaust gas stream after passing through the heating device (1) directly into the combustion device (3),
The heated gas engine equipment according to any one of claims 1 to 8. An io pipe (17) branches off from the conduit (12) leading the exhaust gas to the preheater (11) and connects the preheater (11) and the combustion device (3).
) Heated gas engine installation according to claim 9, opening into a conduit (14) connecting between the heating gas engine and the heating gas engine. 11. A blower (18) which sucks a part of the carbon dioxide separated from the exhaust gas in the water separator (19) from the water separator (19) and supplies it to the conduit (20) leading to the preheater (11).
The heating gas engine equipment according to any one of claims 1 to 8, wherein the heating gas engine equipment is provided with a pipe. 12 A tube (22) for carbon dioxide reflux is connected to the oxygen evaporator (8) and the preheater (11) in front of the preheater (11) in the direction of flow.
11) The heating gas engine equipment according to claim 11, which opens into a conduit (20 mm) connecting between the heated gas engine equipment and the heated gas engine equipment.