DEVICE FOR MEASURING RESIDUAL AMOUNTS IN HIGH-PRESSURE CONTAINER IN WHICH LIQUEFIED GAS IS STORED, AND HIGH-PRESSURE CONTAINER MANAGEMENT SYSTEM IN WHICH SAME IS MOUNTED

Abstract

The present invention relates to a residual quantity measuring device for a high pressure container storing liquefied gas and a management system for a high pressure container.

Claims

1. A residual quantity measuring device for a high pressure container storing liquefied gas, in which a body (21) that is a plate is attached to an outer wall surface of a gas container (10), an LED display part (24), in which a plurality of LED elements are disposed at an equal interval, is provided on a front surface of the body (21) that is the plate, a temperature sensor part (25) having a plurality of heat sensors (25a) in correspondence of the LED elements is provided on a rear surface of the body (21) that is the plate, the body (21) that is the plate has a power supply part (22) and a heating wire (30), permanent magnets (23) are provided at upper and lower portions of a rear surface of the body (21) that is the plate, and a check switch that supplies and interrupts electricity is provided in the heating wire (30), wherein the heating wire (30) further includes a pattern (30a) vertically connected to a heating wire starting portion and a heating wire ending portion between the heating wire starting portion and the heating wire ending portion at an interval, and configured to reduce a temperature deviation generated between the heating wire starting portion and the heating wire ending portion in a heat dissipation process of the heating wire (30) by outputting an average value of resistance temperatures according to applied quantities of electricity.

2. The residual quantity measuring device of claim 1, wherein the pattern (30a) is formed such that downward vertical lines (31) that form line forms toward a vertically lower side and upward vertical lines (33), a length of which is the same as that of the downward vertical lines (31) and form line forms toward a vertically upper side are repeatedly formed horizontally at the same interval, and the upward vertical lines (33) and the downward vertical lines (31) are connected by lower connection lines (32) and upper connection lines (34) having a “U” shape, which are alternately and repeatedly formed.

3. The residual quantity measuring device of claim 1, wherein the body (21) that is the plate further includes a start signal input terminal (27) and a start signal output terminal (28) connected to the gas container (10), and further includes a state signal output terminal that transmits a charging state of the gas container to a central control center (a disaster prevention center).

4. The residual quantity measuring device of claim 1, wherein a power source supplied to the body (21) that is the plate and the heating wire (30) is a battery.

5. A management system for a high pressure container storing liquefied gas, ion which high-pressure gas containers are connected to each other and are preserved, and are intensely managed by a central control center (a disaster prevention center), wherein the management system is formed by connecting, by wire or wirelessly, the central control center (the disaster prevention center) and residual quantity measuring devices attached to outer walls of the gas containers, wherein, in each of the residual quantity measuring devices, a body (21) that is a plate is attached to an outer wall surface of a gas container (10), an LED display part (24), in which a plurality of LED elements are disposed at an equal interval, is provided on a front surface of the body (21) that is the plate, a temperature sensor part (25) having a plurality of heat sensors (25a) in correspondence of the LED elements is provided on a rear surface of the body (21) that is the plate, the body (21) that is the plate has a power supply part (22) and a heating wire (30), permanent magnets (23) are provided at upper and lower portions of a rear surface of the body (21) that is the plate, and a check switch that supplies and interrupts electricity is provided in the heating wire (30), and wherein the heating wire (30) further includes a pattern (30a) vertically connected to a heating wire starting portion and a heating wire ending portion between the heating wire starting portion and the heating wire ending portion at an interval, and configured to output an average value of resistance temperatures according to applied quantities of electricity.

Description

DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 is a perspective view of a general gas container keeping unit.

[0019] FIG. 2 is a view illustrating a state of attachment of a conventional residual quantity measuring device to a gas container, and a front surface and a rear surface of the residual quantity measuring device.

[0020] FIG. 3 is a view illustrating a microprocessor embedded in the residual quantity measuring device of FIG. 2, and a connection relationship between an LED display part and a sensor part.

[0021] FIG. 4 is a view schematically illustrating a state of monitoring the gas container keeping unit of FIG. 1 by a central control center (a disaster prevention center).

[0022] FIG. 5 is a partially enlarged view illustrating a pattern applied to a heating wire of a residual quantity measuring device for a high pressure container storing liquefied gas according to the present invention.

[0023] FIG. 6 is a view illustrating a state, in which the pattern of FIG. 5 is formed in a heating wire in a form of a film.

BEST MODE

[0024] The above and other aspects, features, and advantages of embodiments of the present will become apparent from the following description of the following embodiments given in conjunction with the accompanying drawings.

[0025] However, the present invention is not limited by the embodiments disclosed herein but will be realized in various different forms, and the embodiments are provided only to make the disclosure of the present invention complete and fully inform the scope of the present invention to an ordinary person in the art, to which the present invention pertains, and the present invention will be defined by the scope of the claims. Throughout the specification, the same reference numerals denote the same elements.

[0026] In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

[0027] Furthermore, the following terms are those defined in consideration of functions in the embodiments of the present invention, and may become different according to an intention or customs of the operator. Therefore, the definition should be made based on the contents over the specification.

[0028] Hereinafter, configurations of a residual quantity measuring device for a high pressure container storing liquefied gas and a management system for a high pressure container employing the same according to the present invention will be described in detail according to embodiments with reference to the accompanying drawings.

[0029] In a residual quantity measuring device for a high pressure container storing liquefied gas, as illustrated in FIGS. 2 and 3, a body 21 that is a plate is attached to an outer wall surface of a gas container 10, an LED display part 24, in which a plurality of LED elements are disposed at an equal interval, is provided on a front surface of the body 21 that is the plate, a temperature sensor part 25 having a plurality of heat sensors 25a in correspondence of the LED elements is provided on a rear surface of the body 21 that is the plate, the body 21 that is the plate has a power supply part 22 and a heating wire 30, permanent magnets 23 are provided at upper and lower portions of a rear surface of the body 21 that is the plate, and a check switch that supplies and interrupts electricity is provided in the heating wire 30.

[0030] In the residual quantity measuring device for a high pressure container storing liquefied gas, according to the present invention, as illustrated in FIGS. 5 and 6, a pattern 30a that is vertically connected to a heating wire starting portion and a heating wire ending portion between the heating wire starting portion and the heating wire ending portion at an interval and outputs an average value of resistance temperatures according to applied quantities of electricity is formed.

[0031] The pattern 30a is formed such that downward vertical lines 31 that form line forms toward a vertically lower side and upward vertical lines 33, a length of which is the same as that of the downward vertical lines 31 and form line forms toward a vertically upper side are repeatedly formed horizontally at the same interval, and the upward vertical lines 33 and the downward vertical lines 31 are connected by lower connection lines 32 and upper connection lines 34 having a “U” shape, which are alternately and repeatedly formed.

[0032] The pattern 30a achieves temperature compensation for a high temperature and a low temperature that are adjacent and temperature compensation for a low temperature and a high temperature while the applied electricity repeatedly travels from the downward vertical lines 31 to the upward vertical lines 33 through the lower connection lines 32 and in turn travels from the upward vertical lines 33 to the downward vertical lines 31 through the upper connection lines 34.

[0033] Accordingly, the heating wire 30 dissipates heat when electric power is applied to the heating wire 30 by pushing the check switch and then the electric power supplied to the heating wire 30 is interrupted, and, then, the pattern 30a vertically connected to a heating wire starting portion and a heating wire ending portion between the heating wire starting portion and the heating wire ending portion at an interval may reduce a temperature deviation generated between the heating wire starting portion and the heating wire ending portion in a heat dissipation process of the heating wire 30 by outputting an average value of resistance temperatures according to applied quantities of electricity, and this means that the temperature sensor part 25 and the LED display part 24 may be monitored more accurately in the same heat dissipation condition of the heating wire 30.

[0034] Meanwhile, the body 21 that is the plate includes a start signal input terminal 27 and a start signal output terminal 28 connected to the gas container 10, and further includes a state signal output terminal 29 that transmits a charging state of the gas container 10 to a central control center (a disaster prevention center). The state information of the gas containers is transmitted while sequentially interworking with each other in a time division manner, whereby the state information of the gas containers connected to each other and kept in a preservation unit in unit of several hundred gas containers according to a size of a ship or a building may be prevented from being transmitted to the disaster prevention center at once and it is possible to monitor the states of the gas containers in the central control center (the disaster prevention center).

[0035] Furthermore, it is convenient because a power input part 22 that supplies necessary electric power to the body 21 that is the plate may use electric power of a battery as well as an external power source, and an amount of the liquefied gas stored in the gas container 10 may be measured while the battery is carried when the battery is used. The residual quantity measuring device 20 is connected to the central control center (the disaster prevention center) by wire or wirelessly, whereby the management system of the present invention intensively manages the central control center (the disaster prevention center).

[0036] Furthermore, the central control center (the disaster prevention center) is managed to receive an amount of the liquefied gas from a current measuring unit 20 attached to the gas container 10 and recognize an amount of the whole stored liquefied gas in the gas container kept and managed in a keeping unit, and is connected to an internet and managed and controlled to be monitored from an outside as well.

[0037] In this way, the present invention provides a residual quantity measuring device for a high pressure container storing liquefied gas, in which a body that is a plate is attached to an outer wall surface of a gas container, an LED display part, in which a plurality of LED elements are disposed at an equal interval, is provided on a front surface of the body that is the plate, a temperature sensor part having a plurality of heat sensors in correspondence of the LED elements is provided on a rear surface of the body that is the plate, the body that is the plate has a power supply part and a heating wire, permanent magnets are provided at upper and lower portions of a rear surface of the body that is the plate, and a check switch that supplies and interrupts electricity is provided in the heating wire, wherein the heating wire further includes a pattern vertically connected to a heating wire starting portion and a heating wire ending portion between the heating wire starting portion and the heating wire ending portion at an interval, and configured to reduce a temperature deviation generated between the heating wire starting portion and the heating wire ending portion in a heat dissipation process of the heating wire by outputting an average value of resistance temperatures according to applied quantities of electricity, whereby in a heat dissipation process of supplying electricity to the heating wire to monitor normal operations of the temperature sensor part and the LED display part and interrupting the electricity again, the temperature sensor part and the LED display part may be monitored more accurately in the same heat dissipation condition by eliminating a heat dissipation temperature deviation generated between the heating wire starting portion that is adjacent to the power supply part and the heating wire ending portion, and an easiness and an efficiency of management and operation as well as a performance and a reliability of a device may be further enhanced because a charging state and a total amount of the gas kept and managed in the keeping unit may be monitored via the residual quantity measuring device attached to the gas container in the central control center (the disaster prevention center) through a communication module.

[0038] Although the residual quantity measuring device for a high pressure container storing liquefied gas and the management system for a high pressure container employing the same according to the present invention have been described until now, those are simply most preferred embodiments of the present invention and do not limit the present invention, and the scope of the present invention is determined and limited by the attached claims. Furthermore, an ordinary person in the art, to which the present invention pertains, may variously modify and imitate the contents of the specification of the present invention, but the modifications and imitations will also fall within the scope of the present invention.

TABLE-US-00001 [Description of Reference Numerals] 10: gas container 20: residual quantity measuring device 21: body that is a plate 22: power input part 23: permanent magnet 24: LED display part 24a: LED element 25: temperature sensor part 25a: heat sensor 27: start signal input terminal 28: start signal output terminal 29: state signal output terminal 30: heating wire pattern 30a: pattern 31: downward vertical line lower connection line 32: lower connection line 33: upward vertical line 34: upper connection line