JPH01300004A - Starting device for lithium engine system - Google Patents

Abstract

PURPOSE:To stabilize the starting characteristic by connecting a small size gas bomb, into which a gas that is noncondensable in the ordinary temperature and insusceptible to the variation of outside air temperature is pressurized above a specific value and filled, with a clearance between a bladder filled with water and the main body of an accumulator. CONSTITUTION:Steam generated by a lithium reaction boiler 1 is supplied to operate a turbine 2 and condensed to water by a condenser 3 after exhaust from the turbine, and the water is pressurized by a feed water pump 4 and supplied again to the lithium reaction boiler 1. For startup of a lithium engine system like this, the water filled in a bladder 5 made of rubber, etc. is supplied to a water line through a feed water valve 7. In this instance, the main body of an accumulator 8 which encloses a bladder 5 is connected with a small size gas bomb 10, and a gas noncondensable in the ordinary temperature and insusceptible to the variation of outside air temperature like O2, Ar, etc. is pressurized, at least, above 60kg/cm<2> and filled into the gas bomb 10. Thus, the driving characteristic of the system is stabilized.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Use and Disassembly) The present invention relates to a starting device for a lithium engine system used in underwater vehicles and the like.

(Prior art) An example of a conventional device is shown in Fig. 2, in which steam generated in a lithium reaction boiler 1 is sent to a turbine 2 to drive it, and then enters a condenser 3 where it is condensed. After, water supply pump 4
is energized and returns to the lithium reaction boiler l,
The so-called Rankine cycle is repeated.

Before starting this lithium engine system, there is no water in the water system line, which is formed by connecting the lithium reaction boiler 1, turbine 2, condenser 3, and water pump 4 in a ring in this order, so this lithium engine system When starting up, water 6 sealed in a Prada 5 made of rubber or the like is supplied into the water system line by opening a water supply valve 7 made of a solenoid valve or the like.

The gap between Prada 5 and the accumulator body 8 surrounding it is communicated with Kunku 9, which stores an oxidizing agent for lithium reaction that is liquefied at room temperature. (15~40Kg/cJ
) is pressed by.

(Problem 8 to be solved by the invention) In the conventional device described above, when the device is started, the water 6 sealed in the plug 5 is supplied into the aqueous line under the saturated vapor pressure of the oxidizing agent for lithium reaction. However, since the vapor pressure of the lithium reaction oxidizer fluctuates greatly due to changes in outside temperature, there was a problem in that the start-up performance of the lithium engine system changed.

In addition, the vapor pressure of the oxidizer for lithium reaction is relatively low near room temperature (15 to 40 g/cIiI), so even if the lithium engine system is started, the turbine 2 and the water pump 4 etc. In some cases, the rotational speed of the engine did not rise sufficiently and, therefore, it was not possible to shift to normal operation.

(Means for Solving the Problems) The present invention was invented in order to solve the above problems, and its gist is to install a lithium reaction boiler, a turbine, a condenser, and a water pump in this order. Start-up of a lithium engine system in which water sealed in a plug is pumped into a water system line connected in an annular manner by this plug and the surrounding area, and water is supplied via a water supply valve. At least 60 kg/c of gas that is non-condensable and unaffected by changes in outside temperature.
A starting device for a lithium engine system is characterized in that a small gas cylinder sealed at a pressure of 4 or more is connected in communication with the gap between the plug and the accumulator body.

(Function) In the present invention, i. Since the above configuration is provided, when the lithium engine system is started, by opening the water supply valve, the water sealed in the plug is supplied to the 50 Water is supplied into the water system line under the pressure of the high-pressure gas.

(Example) One embodiment of the invention is shown in FIG.

10 is a small gas cylinder, which is connected via a tube 11 to a fitting 12 provided on the accumulator body 8. Inside this small gas cylinder 10 are 11□, Os,
A gas that is non-condensable at room temperature and unaffected by changes in outside temperature, such as A, is sealed at a pressure of at least 60 kg/cj.

By opening the lO plug in this small gas cylinder, the high-pressure gas therein is supplied to the gap between the plug 5 and the accumulator body 8 through the tube 11, and the water sealed inside the plug 5 is 6 is pressurized by this high pressure gas.

Therefore, when the lithium engine system is started, the water 6 sealed in the plug 5 is opened by opening the water supply valve 7.
is at least 60 kg/cm2 under the pressure of the gas supplied to the gap between the plug 5 and the accumulator body 8.
Water is supplied into the water system line at the above pressure In the invention, a small gas cylinder filled with a gas that is non-condensable at room temperature and unaffected by changes in outside temperature at a pressure of at least 6QKg/cA is connected between the plug and the accumulator body. Because it is connected to the gap, when the water supply valve is opened at startup of the lithium engine system, the water sealed in the plug is exposed to the pressure of high-pressure gas of 60 kg/c- or more sealed in a small bong and flows into the water system line. Water is supplied inside.

As a result, the water supply pressure to the water system line at the time of startup is increased, so the startup characteristics of the lithium engine system are improved. Furthermore, the gas sealed in this small gas cylinder is non-condensable at room temperature and is unaffected by changes in outside temperature, so the water supply pressure is not affected by outside temperature at room temperature. Stable starting characteristics. Note that by reducing the volume of the gap between the plug and the accumulator body, it is possible to downsize the gas cylinder to a small gas cylinder, which requires less installation space.

[Brief explanation of the drawing]

Fig. 1 is a system diagram of the 1''XX embodiment of the present invention, and Fig. 2 is a system diagram of a conventional device. Lithium reaction boiler 1, turbine 2, condenser 3
, Water pump-4, Plug-5, Water-6, Accumulator body-8, Water supply valve 7, Small gas tank Figure 1 Figure 2

Claims (1)

[Claims] A lithium reaction boiler, a turbine, a condenser, and a water pump are connected in this order in an annular water system line, and high-pressure gas is supplied to the gap between the Prada and the surrounding accumulator body using the water sealed inside the Prada. In a starting device for a lithium engine system in which water is supplied via an extrusion water supply valve, at least
A starting device for a lithium engine system, characterized in that a small gas cylinder sealed at a pressure of 0 kg/cm^2 or more is connected in communication with the gap between the prada and the accumulator body.