RU970U1 - Device for measuring the water level in a submerged submarine compartment - Google Patents

Abstract

A device for measuring the water level in the flooded compartment of a submarine containing a sensing element, characterized in that the sensing element is made in the form of a differential pressure sensor, is sealed and provided with two nozzles for supplying a medium, one of the nozzles being intended for output into the super-liquid space.

Description

DEVICE for dzhzhryal LEVEL waves in

SUBMERSIBLE WATER COMPARTMENT

The utility model relates to the field of shipbuilding and is intended to measure the current value of the water level in the flooded compartment of a submarine.

Known devices for measuring water level- (level gauges) in volume c, based on the registration of the achievement of a given liquid by a liquid. level or change the current value of the faucet liquid using a sensitive element. As a sensitive element can be used a float connected by eoshem - .. flexible. connections with the initial level - the reference point and the level indicator with a measuring ruler (RF patent L 2003053, Ш1 523/40). For non-contact measurement of the liquid level as a sensing element, for example, a capacitive sensor is used, connect the Ш-to-Converter of the electrical signal in the appropriate electrical circuit: measuring ycTpdicTBa (RF patent No. 2002213, 601 F23 / 26). Shirox

Devices in which the sensitive element is included in the optical measuring circuit, as a rule, are also widespread; fiber optic (EP 0334533, 1989, e01 P23 / 22).

D € W eOI P 23/16

However, despite the high sensitivity and accuracy of this type of construction system, in specific limitations on reliability, maintainability, ease of use, etc., not every one of them can be installed and used in a submarine.

A known level gauge is designed to measure the current value of the water content in a closed volume, for example, a tank containing a sensing element, wetted with liquid, empty or in volume. The greater ratio of the length of the wetted part to the total length of the sensing element characterizes the fluid level in this volume. Level gauges of this design are approved for use on submarines C TU 25-0272.0423-85).

A disadvantage of the known device for measuring the water level is that due to the small volumes of the compartments, it is difficult to trap the sensor element over the entire height of the compartment, because he must kint; hard enough, hard to bend. In addition, in emergency situations, TRZ-TAO ensure reliable protection of the sensing element. The specified device is taken as a prototype.

The problem that the proposed utility model allows to solve is to improve the operational characteristics of the device in a submarine due to the reduction of the influence of the stern size of the device, which will simultaneously lead to increased reliability of the device in emergency situations .. -;

In order to achieve such a result, a well-known device for measuring the water level in the flooded compartment is supplied with water: - ice, -; Gt3sepzhayuschey sensitive element, in accordance with the proposal, the sensitive element is made in the form of a differential pressure sensor, sealed and equipped with two nozzles for supply &rvdr;.; And, moreover, one of the nozzles is designed to be installed in nadtsldostnym space,

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The device contains a differential pressure sensor I of a known type: located in its sealing shell 2 and equipped with two nozzles-3 and 4, while the nozzle 3 connects the sensor I to the lower part of the submarine compartment, s.jiaTpy62K 4 is displayed in an over-1 space.

The device works as follows. If there is no water in the compartment, the same air pressure in the compartment is supplied to both points of the medium supply through pipes 3 and 4 to the sensor I, as a result of which the absence of water in the compartment is registered.

When water enters the compartment, one of the points of pressure supply to the sensor I through the nozzle 3 is additionally affected by the hydrostatic pressure of the water column in the compartment. Sensor I shows the differential pressure dP equal to this (current) value of hydrostatic pressure. Dividing the magnitude of this differential pressure of LR by the specific gravity of water, we obtain the geometric height of the water column from the installation level of the sensor I to the water level. Having added to the height H of the water column a constant height h of the installation of the sensor I, we obtain Zfove (current) water in the compartment:

Sealed e1 capacity 2 protects the sensor I from exposure to water. The open end of pipe 4, which communicates intrusion to the point of supply of the medium pressure to the sensor I with the top of the compartment, which is super liquid, can be bent vertically downwards, which prevents water from entering the tube during rolls and diaphragms. The differential pressure sensor I can be made on the basis of membranes (RF patent 2010198, GGI L9 / I2) using piezoelectric or strain gauges, sensor I can be made with small dimensions, which allows it to be installed in the lower part of the compartment in places with convenient access. This ensures that the operating conditions are met and other requirements: research institutes, requirements to devices of similar purpose.

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Claims (1)

A device for measuring the water level in the flooded compartment of a submarine containing a sensing element, characterized in that the sensing element is made in the form of a differential pressure sensor, is sealed and provided with two nozzles for supplying a medium, one of the nozzles being intended for output into the super-liquid space.