CN201032460Y - Gas storage detecting and leakage warning device - Google Patents

Abstract

A gas storage amount detecting and leakage warning device includes: at least one temperature sensor for sensing indoor temperature and outputting temperature signal; the pressure sensor is arranged in the high-pressure side of the gas regulator, the high-pressure side is connected with the gas cylinder, and the pressure sensor senses the gas pressure output by the gas cylinder and outputs a pressure signal; the calculation processing circuit is connected with the temperature sensor and the pressure sensor, inputs a temperature signal and a pressure signal and converts the temperature signal and the pressure signal into relative temperature and pressure values, numerical data of standard temperature, pressure and volume of gas are preset in the calculation processing circuit to calculate the storage of the gas cylinder, the gas leakage state is calculated and detected according to the initial and sampling pressure values, and an alarm signal is output; the warning component is connected with the calculation processing circuit to receive the warning signal and send out a gas leakage warning; the display device is connected with the calculation processing circuit and displays the storage quantity of the gas cylinder and the gas leakage alarm state; the power supply device is used for supplying direct-current working power to the temperature sensor, the pressure sensor, the calculation processing circuit, the warning assembly and the display device; the gas leakage detection device has reasonable structure and can accurately and rapidly detect the gas leakage state of the pipeline or the regulator.

Description

Gas inventory detection and leakage warning device

1. Technical field

The utility model relates to a gas stock detection and leakage warning device which is applied between a gas furnace, a pipeline and a gas cylinder connection structure and has the functions of gas stock and gas leakage detection and warning.

2. Background technology

Gas cylinders and gas stoves are necessary cooking and heating facilities in daily life, especially the combination of gas cylinders and gas stoves to provide a convenient and controllable heating source, but the problem of the storage capacity in the gas cylinders is always troubling users , for example: When will the gas stock in the gas cylinder be

Exhausted, it is impossible to see the gas stock with the naked eye or can only judge the gas stock based on experience with a large error value, causing users to often miss the opportunity to replace the gas cylinder, causing troubles in the use of gas replenishment; in addition, the gap between the gas cylinder and the gas furnace Connect through pipelines and regulators so that the gas will

There is a dangerous problem of leakage on the pipeline or regulator. Under normal conditions, users are not easy to detect immediately, so it is easy to cause gas poisoning or gas explosion disasters; therefore, it is necessary to accurately and quickly detect the state of gas leakage to provide Give users immediate and rapid troubleshooting and disaster prevention work.

In addition, in terms of relevant prior patent documents, such as China Taiwan Patent Publication No. 571707 "Cylinder-mounted Gas Inventory Detection Device", a new patent case, discloses a typical existing gas cylinder memory detection device, through a A set of mechanical pipe fittings and detection gauges are placed in the gas cylinder to detect the stock in the gas cylinder. The structure of the gas cylinder must be greatly modified to meet the placement of pipe fittings and detection gauges. In addition to being unable to apply to the general existing gas cylinder structure, the pipe fittings Inserting the channel of the gas cylinder and the detection meter will also increase the pipeline and probability of gas leakage. Moreover, the mechanical pipeline and detection meter cannot achieve accurate results for the detection of the gas cylinder inventory, and can only roughly detect the gas inventory.

China Taiwan Patent Publication No. 341347 "Detectable gas sensor state device" new patent case mainly detects whether the gas has leaked through a heating component and a circuit, and this kind of method judges whether the gas leaks by burning the heating component and fusing The sensing structure has the risk of gas explosion and combustion. The alarm response time is slow and if the heating element is not fused, the alarm will fail, so that the gas leakage status cannot be quickly and accurately warned.

3. Contents of utility model

The main purpose of the utility model is to overcome the above-mentioned shortcomings of existing products, and provide a gas inventory detection and leakage warning device, so that the gas cylinder inventory can be accurately calculated and displayed by digital values.

Another object of the present utility model is to provide a gas inventory detection and leakage warning device, which can be applied to all existing gas cylinders for gas inventory detection and display without changing any structure of the gas cylinder.

Another object of the present utility model is to provide a gas inventory detection and leakage warning device, which can accurately and quickly detect the gas leakage status of pipelines or regulators without burning any components.

The purpose of this utility model is achieved by the following technical solutions.

The gas inventory detection and leakage warning device of the utility model is characterized in that it includes: at least one temperature sensor, which senses the indoor temperature, and outputs a temperature signal; A gas cylinder is connected to the side to sense the gas pressure output by the gas cylinder and output a pressure signal; a calculation processing circuit is connected to the temperature sensor and the pressure sensor to input the temperature signal and pressure signal and convert it into relative temperature and pressure values. The calculation and processing circuit presets the gas standard temperature, pressure and volume data to calculate the gas cylinder inventory, calculates and detects the gas leakage status according to the initial and sampling pressure values, and outputs an alarm signal; an alarm component is connected to the calculation and processing circuit , to receive the alarm signal and issue a gas leakage alarm; a display device, connected to the calculation processing circuit, to display the gas cylinder stock and gas leakage alarm status; a power supply device, supplying temperature sensors, pressure sensors, calculation processing circuits, warning components and display devices. The required DC power supply.

In the aforementioned gas inventory detection and leakage warning device, the temperature sensor is a precision thermistor.

In the aforementioned gas inventory detection and leakage warning device, the temperature sensor is arranged on a gas regulator.

In the aforementioned gas inventory detection and leakage warning device, the temperature sensor is arranged on the periphery of a gas furnace.

The aforementioned gas inventory detection and leakage warning device, wherein the calculation and processing circuit includes: a first analog/digital converter connected to a temperature sensor to convert the temperature signal output by the temperature sensor into a corresponding temperature value output; a second An analog/digital converter, connected to the pressure sensor, converts the pressure signal output by the pressure sensor into a corresponding pressure value output; a microprocessor, connected to the first analog/digital converter and the second analog/digital converter, respectively Receive the temperature value and pressure value, and calculate the gas storage in the gas cylinder according to the relationship between temperature, pressure and volume, and calculate and detect the gas leakage state according to the initial pressure value and sampling pressure value output by the pressure sensor corresponding to the sampling pressure signal, And output an alarm activation signal; a random access memory, connected to the microprocessor, the random access memory pre-stores the temperature, pressure and gas stock standard values of various types of gas cylinders, and provides them to the microprocessor as the actual value of the gas cylinder. Inventory calculation basis, random access memory for temporary storage of initial and sampling pressure values, providing a microprocessor as a gas leakage state detection calculation basis; a button group, connected to the microprocessor, for the microprocessor to start, shut down, and gas inventory The command input function of calculation, gas leakage test, alarm reset and numerical display switching operation enables the microprocessor to perform relative operation functions; an alarm drive circuit is connected to the microprocessor and warning components to receive the alarm output by the microprocessor An activation signal is output to send an alarm signal to the warning component; a display drive circuit is connected to the microprocessor and the display device, so that the gas stock, operation status, and alarm status are displayed through the display device.

In the aforementioned gas inventory detection and leakage warning device, the microprocessor is connected with a keyboard.

The aforementioned gas inventory detection and leakage warning device, wherein the warning component is a buzzer.

The aforementioned gas inventory detection and leakage warning device, wherein the warning component is a loudspeaker.

The aforementioned gas inventory detection and leakage warning device, wherein the display device is a liquid crystal display; the display device is an LED display.

The aforementioned gas inventory detection and leakage warning device, wherein the power supply unit is a DC battery pack.

The beneficial effect of the utility model gas inventory detection and leakage warning device is that it includes: at least one temperature sensor, a pressure sensor, a calculation processing circuit, a warning component, a display device and a power supply device, wherein the temperature sensor is arranged on the gas regulator or The periphery of the gas furnace is used to sense the indoor temperature and output a temperature signal. The pressure sensor is installed on the high pressure side of the gas regulator to sense the gas pressure value output by the gas cylinder and output a pressure signal. The calculation processing circuit is connected to the temperature sensor and the pressure The sensor is used to input temperature signal and pressure signal, calculate the gas stock in the gas cylinder to be tested and detect whether the gas pipeline or regulator is leaking, and output a warning signal in case of leakage. The warning component and the display component are connected to the calculation processing The circuit is used to warn of gas leakage and display the gas inventory and leakage information. The power supply device provides the working power required by the temperature sensor, pressure sensor, calculation processing circuit, warning component and display device, so as to achieve the accurate detection and display of the gas inventory and the accuracy of the utility model. Quickly warn the effect of gas leakage status.

4. Description of drawings

Fig. 1 is a block circuit diagram of the first embodiment of the utility model.

Fig. 2 is a block diagram of the utility model.

Fig. 3 is a diagram of the second embodiment of the utility model.

FIG. 4 is a block circuit diagram of the third embodiment of the present invention.

Explanation of main symbols in the figure: 100 gas inventory detection and leakage warning device, 10 temperature sensor, 11 temperature signal, 20 pressure sensor, 21 pressure signal, 30 calculation processing circuit, 31 alarm signal, 301 first analog/digital converter, 3011 temperature value, 302 second analog/digital converter, 3021 pressure value, 303 microprocessor, 3031 alarm activation signal, 304 random access memory, 305 key group, 306 alarm drive circuit, 307 display drive circuit, 40 warning component , 50 display device, 60 power supply device, 200 gas regulator, 210 high pressure side, 220 pipeline, 230 low pressure side, 240 pipeline, 300 gas cylinder, 310 switch, 400 gas furnace, 410 switch.

5. Specific implementation

Referring to Fig. 1 and shown in Fig. 2, the gas inventory detection and leakage warning device 100 of the present utility model includes: at least one temperature sensor 10, and the temperature sensor 10 is arranged on a gas regulator 200 (as shown in Fig. 2 ), It is used to sense the indoor temperature and output a temperature signal 11. The form of the temperature sensor 10 is not limited. In the present utility model, a precision thermistor is used as an example for illustration; at least one pressure sensor 20 is located in the gas regulator 200 In the high-pressure side 210 of the gas regulator 200, the high-pressure side 210 of the gas regulator 200 is connected to a gas cylinder 300 through a pipeline 220, and the low-pressure side 230 of the gas regulator 200 is connected to a gas furnace 400 through a pipeline 240, by means of the The pressure sensor 20 installed in the gas regulator 200 senses the gas pressure output by the gas cylinder 300 and outputs a pressure signal 21; a calculation processing circuit 30 is connected to the temperature sensor 10 and the pressure sensor 20 to input the temperature signal 11 and the pressure Signal 21, and converted into relative temperature and pressure values, the calculation and processing circuit 30 pre-stored with various standard temperature, pressure and volume values in the form of gas cylinders 300, so that the temperature corresponding to the temperature signal 11 and the pressure signal 21 and pressure values, compared with the standard temperature, pressure and volume values, the gas stock in the gas cylinder 300 is calculated. The relationship is inversely proportional, and the gas volume of the gas cylinder 300 is calculated, in other words, the gas stock in the gas cylinder 300. In addition, the calculation processing circuit 30 uses the pressure signal 21 to calculate whether the gas is leaking. The calculation and detection method is to open the switch 310 of the gas cylinder 300 (as shown in FIG. 2 ), and the switch 410 of the gas furnace 400 (as shown in FIG. 2 ) ) is also opened, and the gas is first introduced to fill the pipeline 220, the gas regulator 200, and the pipeline 240, and an initial pressure signal 21 is obtained from the pressure sensor 20, and then the switch 410 of the gas furnace 400 is turned off, and after a period of time For example, after 5 seconds, the pressure signal 21 of the pressure sensor No. 20 is re-sampled and input into the calculation processing circuit 30, and the absolute value obtained by subtracting the converted value of the initial pressure signal 21 from the converted value of the sampled pressure signal 21 is used. If it exceeds a certain value, such as exceeding 1cuft/hour, it is judged to be a gas leakage state, or if the converted value of the initial pressure signal 21 and the converted value of the sampling pressure signal 21 are both zero, it is also judged as a gas leak, by The calculation processing circuit 30 outputs an alarm signal 31; a warning component 40 is connected to the calculation processing circuit 30 to receive the alarm signal 31 output by the calculation processing circuit 30 and send an alarm. The form of the warning component 40 is not limited, such as a buzzer device or loudspeaker; a display device 50, which is connected to the calculation processing circuit 30, shows the storage status of the gas cylinder 300 and the alarm state of the gas leakage, and the form of the display device 50 is not limited, such as a liquid crystal display or an LED display; a power supply unit 60, supply the above-mentioned temperature sensor 10, the pressure sensor 20, the calculation processing circuit 30, the warning component 40 and the DC working power required by the display device 50. as an example.

Referring to Fig. 3, it is the second embodiment of the utility model gas stock detection and leakage warning device 100, which shows the state that the gas stock detection and leakage warning device 100 is set on the gas furnace 400, and the temperature sensor 10 is set On the periphery of the gas furnace 400, the pressure sensor 20 is arranged on the high-pressure side 210 of the gas regulator 200, and the warning assembly 40 and the display device 50 are arranged on the surface of the gas furnace 400, so that the gas storage and gas leakage alarm and status of the gas cylinder 300 can be It can directly display and send out alarms directly on the operating side of the gas furnace 400.

Referring to Fig. 4, it is the third embodiment of the gas inventory detection and leakage warning device 100 of the present utility model, and its display calculation processing circuit 30 includes: a first analog/digital converter 301, a second analog/digital converter 302, microprocessor 303, random access memory 304, button group 305, alarm drive circuit 306 and display drive circuit 307; wherein, the first analog/digital converter 301 is connected to the temperature sensor 10, so that the temperature output by the temperature sensor 10 The signal 11 is converted into a corresponding temperature value 3011 for output; the second analog/digital converter 302 is connected to the pressure sensor 20 to convert the pressure signal 21 output by the pressure sensor 20 to make a corresponding pressure value 3021 for output; The processor 303 is connected to the first analog/digital converter 301 and the second analog/digital converter 302 to receive the temperature value 3011 and the pressure value 3021 respectively, and calculate the gas cylinder according to the temperature, pressure and volume relationship of Boyle's law 300, and according to the initial pressure value 3021 corresponding to the sampling pressure signal 21 output by the pressure sensor 20 and the sampling pressure value 3021 to calculate whether there is gas leakage in the detection pipeline 220, 240 and the gas regulator 200, and And then output an alarm activation signal 3031; the random access memory 304 is connected to the microprocessor 303, and the temperature, pressure and gas storage standard value of various forms of gas cylinders 400 are pre-stored in the random access memory 304 to provide micro The processor 303 is used as the benchmark for the calculation of the actual inventory of the gas cylinder 400, and the random access memory 304 is used for temporary storage of the above-mentioned initial and sampling pressure values 3021, so as to provide the microprocessor 303 as the benchmark for the detection and calculation of the gas leakage state; the key group 305 is connected to the microprocessor The device 303 is used for the microprocessor 303 as the input function of starting, shutting down, gas inventory calculation, gas leakage test, alarm reset (reset) and numerical display switching operation command, so that the microprocessor 303 can perform relative operation functions; alarm The drive circuit 306 is connected to the microprocessor 303 and the warning component 40 to receive the alarm activation signal 3031 output by the microprocessor 303, and further outputs the alarm signal 31 to the warning component 40 to send an alarm; the display drive circuit 307 is connected to the microprocessor 303 and the warning component 40. The display device 50 is used to display the gas inventory, operation status, and alarm status via the display device 50 .

The gas inventory detection and leakage warning device of the present invention shown in Figures 1 to 4 above, the relevant descriptions and drawings disclosed therein are for the convenience of clarifying the technical content and technical means of the present invention, and the disclosed preferred implementations The corner of the example is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, All still belong to within the scope of the technical solution of the utility model.

Claims (10)

1. a gas storage is detected and the leakage alarming device, it is characterized in that, comprising: at least one temperature sensor, and the sensing indoor temperature, and export a temperature signal; At least one pressure transducer is located in the gas adjuster high-pressure side, and the high-pressure side connects a gas cylinder, the gas pressure of sensing gas cylinder output, and export a pressure signal; One calculation processing circuit, connect temperature sensor and pressure transducer, input temp signal and pressure signal, and convert relative temperature and pressure value to, default gas standard temperature, pressure and volume numerical data in the calculation processing circuit, to calculate the gas cylinder storage,, and export an alarm signal according to initial and sampling pressure numerical evaluation detecting gas leakage state; One warning component connects calculation processing circuit, and the receiving alarm signal also sends the gas leakage alarm; One display device connects calculation processing circuit, shows gas cylinder storage and gas leakage alarm state; One supply unit, the dc supply that supplying temperature sensor, pressure transducer, calculation processing circuit, warning component and display device are required.

2. gas storage detecting according to claim 1 and leakage alarming device is characterized in that described temperature sensor is accurate thermistor.

3. gas storage detecting according to claim 1 and leakage alarming device is characterized in that described temperature sensor is located on the gas adjuster.

4. gas storage detecting according to claim 1 and leakage alarming device is characterized in that described temperature sensor is located at a gas oven periphery.

5. gas storage detecting according to claim 1 and leakage alarming device, it is characterized in that, described calculation processing circuit comprises: one first analog/digital converter, connect temperature sensor, and the temperature signal that temperature sensor is exported converts corresponding Temperature numerical output to; One second analog/digital converter connects pressure transducer, and corresponding pressure value output is done in the pressure signal conversion of pressure transducer output; One microprocessor, connect first analog/digital converter and second analog/digital converter, receive Temperature numerical and pressure value respectively, and calculate gas storage in the gas cylinder according to temperature, pressure and volume relationship, according to the initial and corresponding original pressure numerical value of sampling pressure signal and the sampling pressure numerical evaluation detecting gas leakage state of pressure transducer output, and export an alarm and activate signal; One random access memory, connect microprocessor, prestore temperature, pressure and the gas storage standard value of various different model gas cylinders in the random access memory, offer microprocessor and calculate benchmark as the actual storage of gas cylinder, random access memory is kept in for initial and sampling pressure numerical value, provides microprocessor to calculate benchmark as the gas leakage state detecting; One key groups connects microprocessor, for the instruction input function of microprocessor as start, shutdown, the calculating of gas storage, gas leakage test, alarm replacement and numerical value demonstration blocked operation, makes microprocessor can carry out relative operating function; One alert driver circuit connects microprocessor and warning component, and the alarm of accepting microprocessor output activates signal, and output alarm signal gives the alarm to warning component; One display driver circuit connects microprocessor and display device, and gas storage, mode of operation, alarm state are shown via display device.

6. gas storage detecting according to claim 1 and leakage alarming device is characterized in that described microprocessor connects a keyboard.

7. gas storage detecting according to claim 1 and leakage alarming device is characterized in that described warning component is a hummer.

8. gas storage detecting according to claim 1 and leakage alarming device is characterized in that described warning component is a loudspeaker.

9. gas storage detecting according to claim 1 and leakage alarming device is characterized in that described display device is a LCD; Described display device is a light-emitting diode display.

10. gas storage detecting according to claim 1 and leakage alarming device is characterized in that described supply unit is the dc-battery group.

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