KR200412087Y1 - Interception system of leakage for gas - Google Patents

Abstract

The present invention relates to a gas leakage alarm blocking device that can sense the temperature around the heating mechanism to block the valve provided in the gas shutoff device to exclude the risk of fire and explosion, the gas connected to the heating mechanism 31 A gas shutoff device (30) provided above the intermediate valve (33) provided for selecting a gas supply to the heating mechanism (31) in the middle of the pipe (32);

The gas shutoff device 30 includes a valve 35 provided to select a gas supply to the intermediate valve 33;

Opening and closing means (37) provided to control the opening and closing of the valve (35);

A temperature detecting sensor 38 installed at a position close to the heating mechanism 31 and sensing a temperature of the heating mechanism 31;

A control unit 36 configured to receive the sensed value of the temperature sensor 38 and operate the opening / closing means 37 by comparing with a preset control value;

The control unit 36 includes a room temperature state in which the detected temperature of the temperature sensor 38 maintains a general room temperature state for a predetermined time;

A heating state in which a temperature state generated during an operation such as cooking food or washing clothes by using the heating mechanism 31 is maintained for a predetermined time;

By comparison of fire status indicating a level above heating;

To shut off the valve (35) only when the heating device (31) is not in a normal temperature state and in a fire state;

When the use of the heating mechanism 31 is detected for cooking in the room temperature state gives the use time and the time required for cooking, and even if the use time elapses, the valve 35 is blocked when the room temperature state;

In the heating state, the heating time is given for a predetermined time in consideration of the normal use time, and in the case of the heating state even after the heating time has elapsed, the valve 35 is further cut off after giving the excess time within the set range. It is a configuration including a logic circuit for controlling the closing means (37).

Gas, leakage, shut off

Description

Interception system of leakage for gas

1 is a simplified block diagram showing the configuration of a gas leakage alarm cutoff device to which the prior art is applied.

Figure 2 is a simplified block diagram showing the configuration of another conventional gas leakage alarm cutoff device applied.

Figure 3 is a block diagram showing a gas leakage alarm cutoff device applied technology of the present invention.

Figure 4 is a flow chart showing the operation flow according to the gas leakage alarm cutoff device applied technology of the present invention.

* Description of the symbols used in the main parts of the drawings *

30; Gas shutoff device

35; valve

36; Control

37; Opening and closing

38; Temperature sensor

41; Release switch

The present invention relates to a gas leakage alarm blocking device, and more particularly, to detect the temperature change according to the use of the gas to block the gas to protect from the danger of fire.

The gas shutoff device is installed before the gas cylinder supplied from the pipe or the intermediate valve provided in the pipe supplied from the gas facility, and if there is a gas leak even though the heating device is not used, it blocks the gas leakage and risks explosion or fire. To protect against.

The gas shutoff device 1 is as shown in FIG. 1;

In the case of below the normal pressure by the pressure sensor (3) connected to the gas pipe (2) to detect the pressure difference of the gas is a mechanical type that is rarely used in the near root.

As another example of the gas shutoff device 1, as shown in FIG.

When the gas leak is detected by the gas sensor 5 installed in close proximity to the heating mechanism 4, the electronic type to block the gas itself toward the intermediate valve 6 is used a lot.

In order to cook and cook a gas-based heating device or to boil laundry, the contents are put in a certain container and ignited.

Even if you forget to extinguish the heating mechanism in the process of seeing other business as above, if the contents due to overheating overflow, it will be extinguished and only the gas will continue to leak. By being safe to use.

However, if you forget to replace cooking utensils or place cooking utensils immediately while the heating utensil is ignited, do not detect if the heating utensil is ignited for a long time without cooking utensils above the heating utensil. Since it is not possible to move to the flammable material around the heating apparatus is a high risk of fire.

Therefore, the present invention is designed to solve the above problems, and detects the temperature around the heating mechanism to determine whether it is at room temperature, using a heating mechanism, or a fire state to shut off the valve of the gas pipe. Its primary purpose is to eliminate the risk of fire and explosion that can result from a leak.

Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the preferred embodiment of the present invention for achieving the above object.

Figure 3 is a block diagram showing a gas leakage alarm cutoff device to which the technique of the present invention is applied, Figure 4 will be described together with a flow chart showing the operation flow according to the gas leakage alarm cutoff device to which the technique of the present invention is applied.

The gas shutoff device 30 to which the technique of the present invention is applied is an intermediate valve 33 provided to select a gas supply to the heating mechanism 31 in the middle of the gas pipe 32 connected to the heating mechanism 31. It is installed on the upper side of the.

The gas shutoff device 30 includes a valve 35 for selecting a gas supply to the intermediate valve 33, and an opening and closing means operated by the control unit 36 to open and close the valve 35. 37).

The control unit 36 operates the opening / closing means 37 by comparing the sensing temperature of the temperature detecting sensor 38 installed at a position close to the heating mechanism 31 with a control value preset in the control unit 36. (35) to control.

Of course, the control of the valve 35 and at the same time through the speaker 45 or the lamp 40 of the alarm 40 to recognize the shut-off state by voice and light.

The control unit 36 includes a room temperature state in which a temperature detected by the temperature detecting sensor 38 is 50 ° C. or lower, which is a general room temperature, for a predetermined time, and

A heating state in which a state of 50 to 130 ° C. generated for a predetermined time is generated during an action such as cooking food or boiling laundry using the heating mechanism 31;

Opening / closing means 37 to shut off the valve 35 only in the normal temperature state and the fire state without using the heating mechanism 31 by comparing whether the fire state indicating the level exceeding the heating state at a temperature higher than 150 ℃. Have more logic circuits to control.

Of course, if the use of the heating mechanism 31 is detected for heating when cooking at room temperature, the use time of cooking time is given, and in the heating state for a predetermined time (approximately 1 hour) in consideration of the normal use time. Give heating time.

The control unit 36 shuts off the valve 35 when the temperature is normal even though the operating time has elapsed, and when the heating state has elapsed even after the heating time has elapsed, gives the valve 35 more time. Block it.

Of course, the opening and closing means 37 further includes a separate opening switch 41 for opening the valve 35 when the heating mechanism 31 is used.

The present invention as described above,

The temperature around the heating mechanism 31 is sensed by the temperature sensor 38 installed near the heating mechanism 31 and provided to the controller 36, and the controller 36 detects the temperature of the temperature sensor 38. It is determined whether or not the temperature is a room temperature state for a predetermined period of time that is below 50 ° C., which is a general room temperature, a heating state using the heating mechanism 31, or a fire state indicating a level exceeding the heating state.

Then, in the normal temperature state and the fire state, the control unit 36 causes the opening and closing means 37 to block the valve 35 so that the supply of gas to the intermediate valve 33 is blocked.

And, if you want to use the heating mechanism 31 in the room temperature state, the control unit 36 gives a use time of a predetermined time when the use of the heating mechanism 31 is detected, the heating state is maintained by the use of the heating mechanism 31 When the control unit 36 is switched to the heating state, and the control unit 36 does not switch to the heating state even after a predetermined time after the use of the heating mechanism 31 is detected, the control unit 36 shuts off the valve 35.

In addition, when the control unit 36 compares the temperature sensed by the temperature sensor 38 to determine the heating state, the valve 35 is opened so that the heating state is maintained for a preset time, and even after the set time has elapsed. If the heating condition continues, additional time is given for the set time.

Before the heating time has elapsed, the heating mechanism 31 is extinguished and the intermediate valve 33 is shut off to become a room temperature state, or when the excess time elapses, the alarm 40 recognizes that the time has passed. Block (35).

In addition, when the heating mechanism 31 is to be used, the valve 35 is opened and closed by opening and closing means 37 by operating the opening switch 41 provided in the gas circuit breaker 30 after opening the intermediate valve 33. ) Is opened and the gas is supplied to the heating mechanism 31 to be used.

The present invention as described above, by detecting the temperature around the heating mechanism to determine whether it is at room temperature, using a heating mechanism, or a fire state to block the valve provided in the gas shutoff device to eliminate the risk of fire and explosion It can devise a variety of effects such as can be.

Claims (2)

A gas shutoff device (30) provided above the intermediate valve (33) provided for selecting a gas supply to the heating device (31) in the middle of the gas pipe (32) connected to the heating device (31); The gas shutoff device 30 includes a valve 35 provided to select a gas supply to the intermediate valve 33; Opening and closing means (37) provided to control the opening and closing of the valve (35); A temperature detecting sensor 38 installed at a position close to the heating mechanism 31 and sensing a temperature of the heating mechanism 31; A control unit 36 configured to receive the sensed value of the temperature sensor 38 and operate the opening / closing means 37 by comparing with a preset control value; The control unit 36 includes a room temperature state in which the detected temperature of the temperature sensor 38 maintains a general room temperature state for a predetermined time; A heating state in which a temperature state generated during an operation such as cooking food or washing clothes by using the heating mechanism 31 is maintained for a predetermined time; By comparison of fire status indicating a level above heating; To shut off the valve (35) only when the heating device (31) is not in use at room temperature and in a fire state; When the use of the heating mechanism 31 is detected for cooking in the room temperature state gives a use time of the time required for cooking, and even if the use time elapses, the valve 35 is blocked when the room temperature state; In the heating state, the heating time is given for a predetermined time in consideration of the normal use time, and in the case of the heating state even after the heating time has elapsed, the valve 35 is further cut off after giving the excess time within the set range. Gas leakage alarm blocking device comprising a logic circuit for controlling the closing means (37). The method of claim 1; The opening and closing means 37 is a gas leakage alarm cutoff device, characterized in that it further comprises a separate opening switch 41 for opening the valve 35 when using the heating mechanism (31).

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