KR20010011550A - A meter for gas charger in charging station - Google Patents

Abstract

PURPOSE: A flow meter for a charging equipment of a gas container charging station is provided to precisely measure an amount of gas supplied from a storage tank of the charging station regardless of a gas residual amount in the gas tank and conveniently check the charged gas amount by numerical display. CONSTITUTION: A flow meter for a charging equipment of a gas container charging station includes an auxiliary supply tube(12) mounted in parallel with a supply tube(120) connecting a glove valve(122) of the supply tube to a charging area(110) and artificially controlling gas supply, control valves(10) connected at both sides of the supply tube respectively behind the glove valve and in front of the charging area for controlling gas supply, a counterflow blocking valve(20) mounted behind the control valve behind the glove valve for preventing counterflow of supplied gas, a vapour liquid separator(30) connected to a bypass tube(125) for separating gas included in the gas to bypass the separated gas to a storage tank(10), a measuring part(40) for measuring gas supplied via the vapour liquid separator, a solenoid valve(50) for electronically controlling the measured gas to be supplied to the charging area, a signal recognizer for determining a signal generated from the measuring part, and displays(70) for displaying a signal applied from the recognizer.

Description

A meter for gas charger in charging station

The present invention relates to a flow meter for a filling device of a gas container filling station, which is installed in a supply pipe through which gas is supplied to the filling device of a container filling station, so that the amount of gas injected into the gas tank from the filling unit can be easily grasped to accurately measure the amount of injected gas. The present invention relates to a flowmeter for a filling device for a gas container filling station.

In general, liquefied petroleum gas (hereinafter referred to as gas), which is a clean fuel, is used in homes or businesses by filling a certain amount of gas into a standardized container for ease of movement due to its convenience of use. The use of the gas was accomplished by contacting and replacing it with a gas-filled gas tank.

In addition, in order to improve the safety of the supply pipe to which the gas is supplied and the continuous use of the gas as the user runs out of gas while the user is continuously supplying the gas to the user, As the “LPG Volume Trading System” was made to pay, the supplier had to replace the gas tanks on a regular basis to prevent the gas from running out of the tank.

Accordingly, the supplier had to carry out the gas tank replacement work while the gas tank replacement work was carried out, and the supplier had to keep the gas tank as it was in order to fill the gas tank. Recharged and used.

At this time, the filling of the standardized gas tank is the filling of the gas in the licensed gas container filling station, the filling station for filling the gas in the gas tank as shown in Figure 1 storage tank for storing the gas for filling (100) ), The charging station 110 for filling the gas tank from the gas supplied from the storage tank 100, the storage tank 100 and the charging station 110 is connected to supply the gas to control the supply of gas Filling the gas tank in the filling station 110 by using a filling device consisting of a supply pipe 120 is installed globe valve 122.

However, such a filling device is not equipped with a device for measuring the filling amount of the gas to be filled in the gas tank, it is impossible to measure the actual filling amount of the gas, and therefore the same amount of gas to be filled in the standardized gas tank uniformly applied There was an unreasonable problem of quantifying the amount of gas charged, resulting in a problem of a decline in reliability between the supplier and the filling station and a difference in direct connection with the financial problem.

That is, when the gas is filled with gas remaining in the gas tank, the supplier does not fill the gas volume in the filling gas tank at the gas container filling station and fills the entire capacity of the standardized gas tank. It was treated as.

Therefore, the gas filling cost is calculated by calculating the gas filling cost by uniformly applying the capacity of the gas tank to the quantity of the filled container, so that an error is generated as much as the amount of gas remaining in the gas tank. Disagreement with the supplier was frequently occurred. To prevent this problem, the supplier observes the amount of gas charged in the gas tank at the filling station and checks the amount of gas charged in each gas tank and excludes it from the total amount of gas charged into the gas tank. As a result, there was an inevitable occurrence of dissatisfaction with the filling station side according to the container specification of the gas tank, and the problems caused by the gas filling emerged, such as the deterioration of reliability.

Accordingly, the present invention is to solve the above problems, even if the gas is filled in the remaining gas in the gas tank, the filling amount of the gas supplied from the storage tank of the filling station is accurately measured and displayed so that the abnormality of the filled gas filling amount It is an object of the present invention to provide a flow meter for the filling device of the gas container filling station to prevent the difference between the supplier and the filling station in advance, and to ensure the reliability accordingly.

1 is a system diagram showing a conventional gas filling device

Figure 2 is a system diagram showing a gas filling device is applied a flow meter in accordance with the present invention

3 is a process diagram sequentially showing the operating relationship of the charging device is installed the present invention

Explanation of symbols for major symbols in the drawings

10: control valve 12: auxiliary supply pipe

14: auxiliary control valve 20: back flow shutoff valve

30: gas-liquid separator 40: mass flow meter

50: electronic valve 60: recognizer

70: display unit

100: storage tank 110: charging station

120: supply pipe

In order to achieve the above object, the present invention provides a gas filling device in which a storage tank and a charging station are connected to a supply pipe provided with a globe valve, and are installed in parallel with a supply pipe connecting the globe valve and the charging station of the supply pipe. An auxiliary supply pipe having an auxiliary control valve for artificially controlling the supply, and a supply valve connecting the globe valve and the charging station are connected to both sides by a control valve for controlling the supply of gas, and a reverse flow of the gas supplied therein. A gas flow separator connected to a backflow shutoff valve for preventing a gas, a gas pipe separating a gas contained in the gas, and bypassing the separated gas to a storage tank, and a measuring unit for measuring the gas supplied through the gas liquid separator. And an electronic valve configured to electrically control supply of the gas measured through the measuring unit to the charging station. And a display unit connected to the measurement unit to determine the signal generated from the measurement unit to control the opening and closing of the electronic valve to control the supply of gas, and a display unit to display a signal applied from the recognizer. The filling of the gas supplied to the charging station is made and the measured value is displayed through the display unit.

Hereinafter, with reference to the accompanying drawings an embodiment of the flow meter for the gas filling apparatus of the present invention in detail as follows.

2 is a device system diagram showing a gas filling apparatus to which the flow meter according to the present invention is applied, and FIG. 3 is a process diagram sequentially showing an operation relationship of the filling apparatus to which the present invention is installed, as shown in FIG. In the gas filling device 110 is connected to the supply pipe 120 is provided with a globe valve 122, it is installed in parallel with the supply pipe 120 connecting the globe valve 122 and the charging station of the supply pipe 120 and the gas The auxiliary supply pipe 12 is provided with an auxiliary control valve 14 for artificially controlling the supply of gas, and the supply pipe 120 connecting the globe valve 120 and the charging station 110 to control the supply of gas. Both sides of the control valve 10 are connected to each other, and the reverse flow blocking valve 20 for preventing the reverse flow of the gas supplied therein and the gas contained in the gas are separated and the separated gas is transferred to the storage tank 10. Connect with bypass pipe 124 to pass The gas-liquid separator 30 to be connected, the measuring unit 40 for measuring the gas supplied through the gas-liquid separator 30, and the gas measured through the measuring unit 40 are supplied to the charging station 110. It is made of an electronic valve 50 to be controlled electronically and connected to the measuring unit 40 and displays the recognizer 60 and the signal applied from the recognizer 60 to determine the signal generated from the measuring unit 40 The display unit 70 is configured to measure the gas supplied from the storage tank 100 to the charging station 110, and to display the measured value through the display unit 70.

The measuring unit 40 configured as described above has a feature of being configured as a mass flow meter so that accurate measurement of the gas is made even when the pressure or temperature of the gas in the supply pipe 120 changes.

Referring to the operation of the present invention configured as described above is as follows.

The gas supplied from the storage tank 100 is controlled according to opening and closing of the globe valve 122 and the control valve 10, and is supplied to the filling station 110 through the supply pipe 120.

At this time, the gas supplied through the globe valve 122 and the control valve 10 of the supply pipe 120 is prevented from flowing back to the storage tank 100 by the backflow blocking valve 20 to the charging station 110. Only gas will be supplied.

And the gas is limited to supply only to the charging station 110 by the backflow shut-off valve 20 is a small amount of air contained in the gas, that is, the gas is separated by the gas-liquid separator 30 is made to supply only the pure liquid gas At the same time, air, which is a bubble separated from the gas, is bypassed to the storage tank 100 through the bypass pipe 124 to maintain a constant pressure in the supply pipe 120.

On the other hand, the pure gas separated from the air in the gas-liquid separator 30 is the flow rate is measured in the measurement unit 40 is supplied to the charging station 110.

At this time, the gas measured from the measurement unit 40 is controlled to be supplied by the electronic valve 50 that is opened and closed according to the electronic signal, the electronic valve 50 is the operator's electronic signal in accordance with the working conditions of the charging station 110 Opening and closing is made by the filling of the gas.

And the measuring unit 40 is made of a mass flow meter for detecting the mass of the liquid so that accurate and uniform metering of the gas can be made irrespective of the temperature change or the pressure change of the gas and in the measuring unit 40 made of the mass flow meter The measured signal is analyzed and determined by the recognizer 60, and the determined value is displayed on the display unit 70.

The display unit 70 is preferably installed in a place where the check of the measured value of the gas, such as the charging station 110, the office of the charging station or the settlement of the cost.

On the other hand, the control valve 10 provided in front and rear of the supply pipe 120 is an abnormality of the measuring section 40, the electromagnetic valve 50, the supply pipe 120 made of a back flow shutoff valve 20, gas-liquid separator 30, mass flow meter When it occurs, it is operated manually to prevent leakage by blocking the supplied gas and to inspect or replace each part.

In addition, when the auxiliary control valve 14 of the auxiliary supply pipe 12 installed in parallel with the supply pipe 120 in the above state is opened, gas can be supplied to the charging station 110 without passing through the measurement unit 40. Thus, when an abnormality occurs in the supply pipe 120 or the inspection of parts or replacement of parts, the filling of gas is prevented from being impossible.

Referring to the process for the filling of the gas filling device as described above, as shown in Figure 3 when the filling of the gas tank in the charging station 110 (S1) is opened (S2) of the electromagnetic valve 50 is made At the same time, the measuring unit 40 measures gas (S3), and this signal is read by the recognizer 60, and the read signal is displayed on the display unit 70 installed in the charging station 110, the office, or other necessary place. The displayed filling amount is confirmed (S4) and the filling of the gas tank 100 of the charging station 110 is completed (S5).

On the other hand, after the filling is completed, the quantity check of the gas tank that has been filled (S6) and the sum of the filling amount charged for each gas tank (S7: Weighing value indicated on the display) process, check the slip (S8) After the filling display amount confirmation (S9), the terminal input (S10), the slip issuance (S11) is completed, the process for filling the gas tank is completed.

When the flowmeter for the filling device of the gas container filling station of the present invention as described above is filled, the amount of gas supplied from the storage tank of the filling station is accurately measured and simultaneously measured even when the gas is filled with the gas remaining in the gas tank. It is easy to check the amount of gas charged and the difference between the supplier and the charging station due to the abnormality of gas filling amount can be prevented in advance, and thus, a very useful advantage can be obtained. .

Claims (2)

In the gas filling device is connected to the storage tank 100 and the filling station 110 to the supply pipe 120 is provided with a globe valve 122, An auxiliary supply pipe 12 installed in parallel with the supply pipe 120 connecting the globe valve 122 and the charging station of the supply pipe 120 and having an auxiliary control valve 14 to artificially control the supply of gas; The supply pipe 120 connecting the globe valve 120 and the charging station 110 is connected to both sides by a control valve 10 for controlling the supply of gas, and prevents a reverse flow of the gas supplied therein. A gas-liquid separator 30 connected to the backflow shutoff valve 20 and a bypass pipe 124 for separating the gas contained in the gas and bypassing the separated gas to the storage tank 10, and the gas-liquid separator ( And a measuring unit 40 for measuring the gas supplied through the 30 and an electronic valve 50 for electronically controlling that the gas measured through the measuring unit 40 is supplied to the charging station 110. Connected to the measuring unit 40 and generated from the measuring unit 40 The display device 70 includes a recognizer 60 for determining a signal to be used and a display unit 70 for displaying a signal applied from the recognizer 60 to fill the gas tank from the storage tank 100 to the charging station 110. Metering is made and the flow meter for the filling device of the gas container filling station, characterized in that the measured value is displayed through the display unit (70). The method of claim 1, The measuring unit 40 is a flow meter for the filling device of the gas container filling station, characterized in that the mass flow meter is configured to ensure accurate metering of the gas even when the pressure or temperature change of the gas in the supply pipe (120).