阅读说明：本技术 一种带充装计量的工业气体安全智能供气装置 (Industrial gas safety intelligent gas supply device with filling and metering functions ) 是由 章忠韶 刘智 于 2021-05-21 设计创作，主要内容包括：本申请涉及一种带充装计量的工业气体安全智能供气装置,其包括储罐、输气管、充气泵、电磁阀、充气口、控制器、电子标签、读写器和存储器；在为待充气储气罐充气前,控制器通过读写器获取待充气储气罐上的电子标签的唯一编码,而后到存储器中获取与该唯一编码对应的气体类型；当控制器获取的气体类型与储罐中盛装的气体类型相同时,控制器自动控制充气泵启动和电磁阀开启,为待充气储气罐充气；否则控制器制动充气泵并关闭电磁阀。本申请具有有助于减少为待充气储气罐充错气体类型的情况,便于提高充气安全性的效果。(The application relates to an industrial gas safe and intelligent gas supply device with charging and metering functions, which comprises a storage tank, a gas pipe, an inflator pump, an electromagnetic valve, an inflation inlet, a controller, an electronic tag, a reader-writer and a memory; before the gas storage tank to be inflated is inflated, the controller acquires the unique code of the electronic tag on the gas storage tank to be inflated through the reader-writer, and then acquires the gas type corresponding to the unique code from the memory; when the type of the gas acquired by the controller is the same as the type of the gas contained in the storage tank, the controller automatically controls the inflator pump to be started and the electromagnetic valve to be opened to inflate the gas storage tank to be inflated; otherwise, the controller brakes the inflator and closes the solenoid valve. This application has and helps reducing the condition for waiting to aerify the gas holder and aerify wrong gas type, is convenient for improve the effect of aerifing the security.)

1. The utility model provides an industrial gas safety intelligence air feeder of measurement is filled in area, is including storage tank (1) that is used for splendid attire industrial gas, the end of giving vent to anger of storage tank (1) is connected with gas-supply pipe (11), install inflator pump (12) and solenoid valve (13) in gas-supply pipe (11), the one end that storage tank (1) were kept away from in gas-supply pipe (11) is installed and is used for inflation inlet (14) be connected with gas holder (0), its characterized in that: the electronic tag also comprises a controller (2), an electronic tag (3), a reader-writer (4) and a memory (5); the controller (2) is electrically connected with the inflator pump (12), the electromagnetic valve (13), the reader-writer (4) and the memory (5);

the electronic tag (3) is used for being connected with the air storage tank (0);

the reader-writer (4) is used for reading the unique code of the electronic tag (3) on the corresponding gas storage tank (0) before the gas storage tank (0) is inflated and transmitting the unique code to the controller (2);

the memory (5) stores unique codes of all the electronic tags (3), and each unique code stores the gas type of the industrial gas contained in the corresponding gas storage tank (0) in a group;

the controller (2) is used for acquiring the unique code transmitted by the reader-writer (4) before the gas storage tank (0) is inflated, and searching the corresponding gas type in the memory (5) through the unique code; when the found gas type is consistent with the gas type stored in the storage tank (1), controlling the inflator pump (12) to be started and the electromagnetic valve (13) to be opened; otherwise, the air pump (12) is braked and the electromagnetic valve (13) is closed.

2. The industrial gas safe and intelligent supply device with charging and metering function as claimed in claim 1, wherein: the controller (2) is electrically connected with a gas sensor (6) and is used for detecting the content of corresponding gas in the air when the gas storage tank (0) is inflated and transmitting a leakage signal to the controller (2) when the content of the corresponding gas exceeds a preset leakage threshold value;

the controller (2) is used for outputting an alarm signal after receiving the leakage signal.

3. The industrial gas safe and intelligent supply device with charging and metering function as claimed in claim 2, wherein: an exhaust pipeline (7) is arranged on one side of the inflation inlet (14), an exhaust pump (71) is installed in the exhaust pipeline (7), and the exhaust pump (71) is electrically connected with the controller (2); the controller (2) is used for simultaneously starting the exhaust pump (71) when outputting the alarm signal.

4. The industrial gas safe and intelligent supply device with charging and metering function as claimed in claim 2, wherein: and an audible and visual alarm (8) is arranged on one side of the inflation inlet (14), and the audible and visual alarm (8) is electrically connected with the controller (2) and used for giving an alarm when receiving an alarm signal.

5. The industrial gas safe and intelligent supply device with charging and metering function as claimed in claim 1, wherein: the memory (5) stores the initial use time and the service life of the air storage tank (0) corresponding to each unique code; the memory (5) is also stored with a contact way of a safety responsible person;

the controller (2) is used for obtaining the remaining service time of the gas storage tank (0) to be inflated according to the acquired unique code, the initial service time, the current time and the service life before the gas storage tank (0) is inflated, and displaying the remaining service time through the display screen; the controller (2) is also used for calling the contact way of the safety responsible person in the memory (5) when the remaining service life is less than the service life threshold value, and sending the unique code of the gas storage tank (0) to be inflated and the remaining service life to the safety responsible person.

6. The industrial gas safe and intelligent supply device with charging and metering function as claimed in claim 1, wherein: the memory (5) stores the capacity value of the air storage tank (0) corresponding to each unique code; a flow sensor (18) is arranged in the gas transmission pipe (11), and the flow sensor (18) is electrically connected with the controller (2); the flow sensor (18) is used for detecting a flow value in the air conveying pipe (11) and transmitting the detected flow value to the controller (2);

the controller (2) is used for controlling the inflator pump (12) to brake and closing the electromagnetic valve (13) when the acquired flow value exceeds a flow threshold value; the flow threshold is lower than the corresponding capacity value.

7. The industrial gas safe and intelligent supply device with charging and metering function as claimed in claim 1, wherein: a camera (9) is arranged on one side of the inflation inlet (14), the camera (9) is electrically connected with the controller (2), and the camera (9) is used for shooting a face image and transmitting the face image to the controller (2);

and the controller (2) is used for transmitting the face image obtained last time to the memory (5) for storage when the found gas type is inconsistent with the gas type stored in the storage tank (1).

8. The industrial gas safe and intelligent supply device with charging and metering function as claimed in claim 1, wherein: a stop valve (15) is installed at one end, close to the storage tank (1), of the gas conveying pipe (11).

9. The industrial gas safe and intelligent supply device with charging and metering function as claimed in claim 1, wherein: and a pressure gauge (16) is arranged on the air conveying pipe (11).

Technical Field

The application relates to the field of industrial gas, in particular to an industrial gas safety intelligent gas supply device with filling metering.

Background

Industrial gases are various in types, are applied to various industries, and are important resources indispensable to the society. But due to the characteristics of industrial gas, accidents which harm the safety of people sometimes happen, and great negative effects are brought.

In order to guarantee the personal safety of people, there is the patent of publication No. CN112303496A among the related art, discloses a take industrial gas safety intelligence air feeder that fills dress measurement, including storage tank and control system, the storage tank has the filling mouth through first pipe connection, has set gradually first valve, has filled pump, first manometer and second valve on the first pipeline, is provided with low temperature metering device on the filling mouth. People can leave the site after connecting the air storage tank to be inflated with the filling port, the control system automatically controls the first valve, the filling pump and the second valve, and the inflation quantity is controlled by the low-temperature metering device; and when the air inflation amount reaches a threshold value, the control system closes the first valve, the filling pump and the second valve, so that efficient and unmanned filling of industrial gas is realized. When dangerous accidents happen on the site, the safety of workers is not easily damaged because no people exist on the site.

In view of the above-mentioned related art, the inventor thinks that the same gas storage tank cannot contain different industrial gases according to the use requirements of the gas storage tank, but when people inflate the gas storage tank, the gas storage tank originally containing other industrial gases is easily connected with the inflation inlet by negligence, but the gas supply device of the above-mentioned related art cannot find the problem, is easy to cause explosion accidents, and has low safety.

Disclosure of Invention

In order to facilitate improving the gas storage tank and inflating the security, the application provides an industrial gas safety intelligence gas supply device of measurement is filled in area.

The application provides a take industrial gas safety intelligence gas supply device that fills dress measurement adopts following technical scheme:

the industrial gas safe intelligent gas supply device with the filling metering function comprises a storage tank for containing industrial gas, a gas outlet end of the storage tank is connected with a gas pipe, an inflator pump and an electromagnetic valve are installed in the gas pipe, and an inflation port for connecting the gas tank is installed at one end, far away from the storage tank, of the gas pipe; the controller is electrically connected with the inflator pump, the electromagnetic valve, the reader-writer and the memory;

the electronic tag is used for being connected with the air storage tank;

the reader-writer is used for reading the unique code of the electronic tag on the corresponding gas storage tank before the gas storage tank is inflated and transmitting the unique code to the controller;

the memory is stored with unique codes of all the electronic tags, and each unique code is stored with gas types of the industrial gas contained in the corresponding gas storage tank in groups;

the controller is used for acquiring the unique code transmitted by the reader before the gas storage tank is inflated, and searching the corresponding gas type in the memory through the unique code; when the found gas type is consistent with the gas type stored in the storage tank, controlling the inflator pump to be started and the electromagnetic valve to be opened; otherwise, the inflator is braked and the electromagnetic valve is closed.

By adopting the technical scheme, industrial gas is stored in the storage tank, when the industrial gas needs to be supplemented into the gas storage tank, a worker connects the gas inlet end of the gas storage tank with the gas charging port, and at the moment, the reader-writer reads information in the electronic tag on the gas storage tank to acquire the unique code of the electronic tag. The controller finds the type of the industrial gas contained in the gas storage tank in the memory according to the unique code, and only when the type of the industrial gas contained in the gas storage tank is the same as that of the industrial gas contained in the storage tank, the controller starts the inflator pump and opens the electromagnetic valve to inflate the gas storage tank; otherwise, the air storage tank cannot be charged with air. The gas storage tank is beneficial to avoiding industrial gas in the storage tank from being supplemented to the gas storage tank for containing other gas types due to negligence of workers, so that explosion or other dangerous accidents are caused, and the gas storage tank inflation safety is convenient to improve.

Optionally, the controller is electrically connected to a gas sensor, and is configured to detect a content of a corresponding gas in air when the gas storage tank is inflated, and transmit a leakage signal to the controller when the content of the corresponding gas exceeds a preset leakage threshold;

the controller is used for outputting an alarm signal after receiving the leakage signal.

Through adopting above-mentioned technical scheme, gathering at the inflation process, gas sensor detects the air near the gas holder in real time, and when industrial gas leaked, the industrial gas content in the storage tank increased, and the controller output alarm signal when surpassing the leakage threshold value. The related responsible person is convenient for learn the industrial gas leakage through alarm signal to be convenient for in time handle the industrial gas who leaks, help reducing the accident probability, guarantee the security of gas holder gas charging.

Optionally, an exhaust pipeline is arranged on one side of the inflation inlet, an exhaust pump is installed in the exhaust pipeline, and the exhaust pump is electrically connected with the controller; the controller is used for starting the exhaust pump when outputting the alarm signal.

By adopting the technical scheme, when industrial gas leaks, the controller automatically starts the exhaust pump, and the leaked gas is recovered into the exhaust pipeline and is intensively discharged to other positions by the exhaust pipeline. The probability of sucking industrial gas by nearby workers is reduced, and the personal safety of the workers is guaranteed. In addition, the leaked industrial gas is concentrated at one position, so that the industrial gas is conveniently degraded or diluted, the harm is reduced, and the environment is protected.

Optionally, an audible and visual alarm is arranged on one side of the inflation inlet, and the audible and visual alarm is electrically connected with the controller and used for giving an alarm when receiving an alarm signal.

By adopting the technical scheme, when industrial gas leaks, the controller automatically controls the audible and visual alarm to give an alarm to remind people nearby to evacuate in time.

Optionally, the memory stores the initial service time and service life of the air storage tank corresponding to each unique code; the memory also stores a contact way of a safety responsible person;

the controller is used for obtaining the remaining service time of the gas storage tank to be inflated according to the obtained unique code, the initial service time, the current time and the service life before the gas storage tank is inflated, and displaying the remaining service time through the display screen; the controller is also used for calling the contact way of the safety responsible person in the memory when the remaining service life is less than the service life threshold value, and sending the unique code of the gas storage tank to be inflated and the remaining service life to the safety responsible person.

Through adopting above-mentioned technical scheme, the workman who is responsible for inflating the gas holder can learn the remaining live time of this gas holder through the display screen before aerifing to whether continue to supply industrial gas to the gas holder by this workman's decision, help improving the gas holder and aerify and the security of use. When the remaining service time of the air storage tank is short, not only can the worker know the information, but also the safety responsible person can know the information, so that the worker can be reminded of not using the air storage tank to be scrapped to violate the use requirement of the air storage tank; on the other hand, safety responsible persons can conveniently control the use reasonability of the gas storage tank, the gas storage tank with less residual use time is eliminated in time, and the occurrence rate of safety accidents is reduced.

Optionally, the memory stores a capacity value of the air storage tank corresponding to each unique code; a flow sensor is arranged in the gas transmission pipe and is electrically connected with the controller; the flow sensor is used for detecting a flow value in the gas transmission pipe and transmitting the detected flow value to the controller;

the controller is used for controlling the inflator pump to brake and closing the electromagnetic valve when the acquired flow value exceeds a flow threshold value; the flow threshold is lower than the corresponding capacity value.

Through adopting above-mentioned technical scheme, the controller acquires the flow value that flow sensor detected in real time, according to the accurate control aeration volume of the capacity value of corresponding gas holder, helps improving gas holder gas filled security and safety in utilization.

Optionally, a camera is arranged on one side of the inflation port, the camera is electrically connected with the controller, and the camera is used for shooting a face image and transmitting the face image to the controller;

and the controller is used for transmitting the face image obtained last time to the memory for storage when the found gas type is inconsistent with the gas type stored in the storage tank.

By adopting the technical scheme, the camera shoots the face, and the face image information of careless workers is recorded through the controller, so that on one hand, when the industrial gas type supplemented by the gas storage tank is wrong, the relevant responsible person is convenient to find; on the other hand helps warning the workman to supply gas for the gas holder according to the standard, treats gas holder inflation work strictly seriously, is convenient for improve the gas holder security of aerifing.

Optionally, a stop valve is installed at one end of the gas pipe close to the storage tank.

Through adopting above-mentioned technical scheme, when the gas-supply pipe takes place to leak gas or the solenoid valve trouble, the workman uses the stop valve to close the end of giving vent to anger of storage tank, stops industrial gas's leakage, reduces industrial gas and lets out leakage quantity, improves gas filled security.

Optionally, a pressure gauge is installed on the gas pipe.

Through adopting above-mentioned technical scheme, the relevant responsible person of being convenient for monitors the pressure in the gas transmission pipe, and when the pressure value that the manometer shows was unusual, help the workman in time to stop aerifing, carries out the quality inspection to gas transmission pipe, solenoid valve and pump, reduces the accident and takes place the probability.

In summary, the present application includes at least one of the following beneficial technical effects:

1. before the gas storage tank is inflated, the controller acquires the type of industrial gas originally contained in the gas storage tank to be inflated, judges whether the type of industrial gas is the same as that of the industrial gas in the storage tank or not, inflates the gas storage tank if the type of industrial gas is the same as that of the industrial gas in the storage tank, and does not ventilate if the type of industrial gas is not the same as that of the industrial gas in the storage tank, so that the situation that the industrial gas in the storage tank is supplemented into the gas storage tanks containing other types of gas due to negligence of workers is avoided, the inflation safety is improved, and the probability of dangerous accidents such as explosion is reduced;

2. in the process of inflating the gas storage tank, the gas sensor detects gas near the gas storage tank in real time, when industrial gas leaks, the controller automatically stops inflating, and controls the exhaust pump to start at the same time, so that the industrial gas is discharged into an exhaust pipeline, the probability of sucking the industrial gas by workers is reduced, and the inflation safety of the gas storage tank is improved;

3. before inflating for the gas holder, the controller output treats the remaining live time of aerifing the gas holder, and the workman of being convenient for learns whether treating to aerify the gas holder and surpass or be about to exceed service life to stop the replenishment of industrial gas, abandon the gas holder, guarantee the gas security and the safety in utilization of gas holder.

Drawings

FIG. 1 is a schematic overall structure diagram of an industrial gas safety intelligent gas supply device with charging metering according to an embodiment of the present application;

fig. 2 is a partial view of an industrial gas safety intelligent gas supply device with charging metering according to an embodiment of the application.

Description of reference numerals: 0. a gas storage tank; 1. a storage tank; 11. a gas delivery pipe; 12. an inflator pump; 13. an electromagnetic valve; 14. an inflation inlet; 15. a stop valve; 16. a pressure gauge; 17. a support; 18. a flow sensor; (ii) a 2. A controller; 3. an electronic tag; 4. a reader/writer; 5. a memory; 6. a gas sensor; 7. an exhaust duct; 71. an exhaust pump; 8. an audible and visual alarm; 9. a camera is provided.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The gas container 0 is a cylinder for containing industrial gas, can be reused, and has a limit of service life, generally 10 years. In the use process of the gas storage tank 0, the corresponding gas needs to be contained according to the structure or the specification of the gas storage tank 0. Generally, before shipping the gas tank 0, characters of industrial gas are painted on the outer circumferential surface of the gas tank 0, for example, "oxygen" characters are painted on the outer circumferential surface of the gas tank 0, which means that the gas tank 0 can store only oxygen.

The embodiment of the application discloses area fills gas safety intelligence gas supply device of dress measurement. Referring to fig. 1, the industrial gas safety intelligent gas supply device with filling and metering functions comprises a storage tank 1, a gas pipe 11 and an inflation inlet 14. The storage tank 1 is used for containing industrial gas; one end of the gas pipe 11 is connected with the gas outlet end of the storage tank 1, and the end far away from the storage tank 1 is connected with the inflation inlet 14; a stop valve 15, a pressure gauge 16, an inflator 12 and an electromagnetic valve 13 are sequentially arranged in the gas pipe 11, and the stop valve 15 is positioned at one end of the gas pipe 11 close to the storage tank 1; the charging port 14 is used for connecting with the air tank 0. It should be noted that the storage tank 1 in the embodiment of the present application is a container for storing industrial gas, and can supplement industrial gas for the plurality of storage tanks 0; the gas storage tank 0 in the embodiment of the present application refers to a container having a volume smaller than that of the storage tank 1 and used for containing industrial gas, and is generally used in a household or a factory, and the industrial gas can be replenished after being used up.

Referring to fig. 1 and 2, the portable electronic tag further comprises a support 17, a controller 2, an electronic tag 3, a reader-writer 4, a memory 5, a gas sensor 6, an audible and visual alarm 8 and a camera 9. The support 17 is used for supporting one end of the gas pipe 11 far away from the storage tank 1, so that the height of the inflation inlet 14 is increased, and the gas storage tank 0 can be conveniently inflated. The controller 2 is electrically connected with the inflator 12, the electromagnetic valve 13, the reader-writer 4, the memory 5, the gas sensor 6, the audible and visual alarm 8 and the camera 9, and in the embodiment, the controller 2 is set to be a PLC control system with an input device and a display screen, or an intelligent terminal with an input device and a display screen. The input device may be a touch screen or a keypad.

The electronic tag 3 is used for being connected with the air storage tank 0, and specifically, the electronic tag 3 is adhered to the outer peripheral surface of the air storage tank 0 before the air storage tank 0 leaves a factory; for the air tank 0 already in use, the electronic tag 3 may be bonded to the outer peripheral surface of the air tank 0; each electronic tag 3 stores a unique code, and the term unique code in the embodiment of the present application means that the codes stored in each electronic tag 3 are different.

The reader-writer 4 is mounted on the bracket 17 and used for reading the unique code corresponding to the electronic tag 3 on the air storage tank 0 before the air storage tank 0 is inflated and transmitting the unique code to the controller 2. The memory 5 stores the unique code, the gas type, the initial use time, the service life and the capacity value of each electronic tag 3; in addition, the memory 5 also stores a contact address of the safety responsible person, wherein the contact address can be a mobile phone number, a micro-signal number or a mailbox number. Each unique code corresponds to one gas storage tank 0, and the gas type, the initial use time, the service life and the capacity value of the industrial gas contained in each gas storage tank 0 are stored in the memory 5 in a group together with the corresponding unique code.

The controller 2 is used for acquiring the unique code transmitted by the reader-writer 4 before the gas storage tank 0 is inflated, and searching the gas types stored in a group corresponding to the unique code in the memory 5 through the unique code. When the found gas type is consistent with the gas type stored in the storage tank 1, controlling the inflator pump 12 to be started and the electromagnetic valve 13 to be opened; otherwise the inflator 12 is braked and the solenoid valve 13 is closed.

It should be noted that, if there is no unique code of the electronic tag 3 on the gas tank 0 to be inflated in the memory 5 and/or there is no related information of the gas tank 0 to be inflated, the worker uses the input device to supplement the missing information into the memory 5 through the controller 2 or the reader/writer 4. The gas type in the storage 5 corresponds to the gas type of the industrial gas which can be contained and is specified by the gas storage tank 0; the initial use time is the time for charging industrial gas into the gas storage tank 0 for the first time or the time for leaving the gas storage tank 0 from the factory; the service life is the maximum service time specified by the air storage tank 0 and the unit is year; the capacity value is the maximum capacity value or the minimum capacity value of the air tank 0. The controller 2 determines that the steps before charging the gas tank 0 include: when the controller 2 receives an inflation start instruction input by a worker, it is determined that the air tank 0 is not inflated at this time. The type of the gas stored in the storage tank 1 is prestored in the memory 5, so that the controller 2 can compare whether the type of the gas contained in the gas storage tank 0 to be inflated is consistent with the type of the gas stored in the storage tank 1.

For ease of understanding, for example, a unique code a, a unique code B, and a unique code C are stored in the memory 5. Wherein, the unique code A corresponds to a gas type Q, initial service time W, service life E and a capacity value R; the unique code B corresponds to a gas type H, initial service time J, service life K and a capacity value L; the unique code C corresponds to a gas type Z, an initial time of use X, an age C and a capacity value V. The type of the gas stored in the storage tank 1 is Q, before the gas storage tank 0 corresponding to the unique code A is inflated, the reader-writer 4 acquires the unique code A and transmits the unique code A to the controller 2, the controller 2 calls the gas type Q corresponding to the unique code A from the storage 5, after comparison, the inflation type of the gas storage tank 0 corresponding to the unique code A is found to be the same as the gas type stored in the storage tank 1, at the moment, the controller 2 controls the inflator 12 to start, and meanwhile, the electromagnetic valve 13 is opened.

In contrast, if the gas storage tank 0 corresponding to the unique code B is charged, because the gas type H of the gas storage tank 0 is inconsistent with the gas type Q stored in the storage tank 1, the controller 2 brakes the inflator 12 and closes the electromagnetic valve 13 at the same time, which helps to prevent the gas storage tank 0 from being exploded due to the fact that industrial gas, which is inconsistent with the originally contained gas type, is charged into the gas storage tank 0.

Referring to fig. 1 and 2, the gas sensor 6 is mounted on the bracket 17 at one side of the charging port 14, and is used for detecting the content of the corresponding gas in the air when the air container 0 is charged. It should be understood that the corresponding gas refers to the gas contained in the storage tank 1, for example, the storage tank 1 contains hydrogen, and the gas sensor 6 is used for detecting the content of hydrogen in the air when the storage tank 0 is inflated; if the storage tank 1 contains chlorine gas, the gas sensor 6 is used for detecting the content of the chlorine gas in the air. The gas sensor 6 is further configured to transmit a leakage signal to the controller 2 when the content of the corresponding gas exceeds a preset leakage threshold, where the leakage threshold may be a specific concentration value or a concentration range, and is determined according to the type of the gas contained in the storage tank 1, so as to detect the gas leakage and reduce the probability of accidents.

The controller 2 is used for receiving the leakage signal transmitted by the gas sensor 6 and outputting an alarm signal after receiving the leakage signal. The audible and visual alarm 8 is arranged on the bracket 17 at one side of the inflation inlet 14, and the audible and visual alarm 8 is used for receiving an alarm signal and giving an alarm when receiving the alarm signal. The audible and visual alarm 8 is convenient for reminding workers near the inflation inlet 14 of gas leakage so as to evacuate to a safe position in time.

In order to improve the safety of people when gas leaks, referring to fig. 2, an exhaust duct 7 is installed on the bracket 17 on the side of the gas charging port 14, and an exhaust pump 71 is installed in the exhaust duct 7. One end of the exhaust pipeline 7 faces the inflating port 14, and the other end extends to an unmanned area which can be an empty ground or a degradation pool; aims to discharge the leaked industrial gas to a position where the personal safety of workers is not easily damaged, and evacuate or degrade the leaked industrial gas.

Referring to fig. 1 and 2, the controller 2 is configured to obtain the remaining usage time of the air tank 0 to be inflated according to the acquired unique code, the initial usage time, the current time, and the usage age before the air tank 0 is inflated. Specifically, the used time length is obtained by subtracting the initial use time from the current time, and the used time length is subtracted from the use time limit to obtain the remaining use time. The controller 2 displays the remaining service time through the display screen, so that the worker can know the remaining service time of the gas storage tank 0 to be inflated conveniently. When the remaining service time of the gas storage tank 0 to be inflated is not longer than the total service time of the gas storage tank 0 to be inflated after being filled with the industrial gas, the gas storage tank 0 to be inflated should be cancelled, and the inflation safety and the use safety of the gas storage tank 0 are ensured.

The controller 2 is further configured to invoke a contact way of the safety responsible person in the memory 5 when the remaining service life is less than the life threshold, and send the unique code of the gas storage tank 0 to be inflated and the remaining service life to the safety responsible person. The life threshold is set according to the total service time of the gas storage tank 0 after being filled with the industrial gas, and can also be set according to the service life of the gas storage tank 0. In this embodiment, the service life of the air tank 0 is 10 years, and the life threshold is set to 0.5 year. When the remaining service time of the air storage tank 0 to be inflated is less than 0.5 year, the controller 2 sends the unique code and the remaining service time corresponding to the air storage tank 0 to be inflated to the safety responsible person. Specifically, the controller 2 can send information to the safety responsible person through the short message editor or the mail editor, so that the safety responsible person can monitor the gas storage tank 0 in use conveniently, the actual service life of the gas storage tank 0 is controlled strictly, and the accident occurrence probability is reduced. Particularly, for the air storage tank 0 with the actual service life exceeding the specified service life, the wall thickness of the air storage tank 0 is seriously worn, so that explosion is easily caused during air inflation, the storage tank 1 is exploded, and the damage degree is high.

Referring to fig. 1 and 2, a flow sensor 18 is mounted in the gas delivery pipe 11, and the flow sensor 18 is electrically connected to the controller 2. The flow sensor 18 is used for detecting the flow value of the industrial gas in the gas transmission pipe 11 and transmitting the detected flow value to the controller 2 in real time. The controller 2 is used for controlling the inflator 12 to brake and closing the electromagnetic valve 13 when the acquired flow value exceeds the flow threshold value, so that the inflation quantity can be accurately controlled. It should be noted that the flow threshold is lower than the corresponding capacity value. In the present embodiment, the flow rate threshold is set to 95% of the capacity value. For example, when the air tank 0 corresponding to the unique code a is inflated, the flow threshold value is 95% R, and when the flow value acquired by the controller 2 exceeds 95% R, the inflator 12 and the solenoid valve 13 are controlled to stop the inflation.

Referring to fig. 1 and 2, a camera 9 is installed on a stand 17 at one side of the air charging port 14, and the camera 9 is used to photograph a face image and transmit the face image to the controller 2. The controller 2 is used for transmitting the face image obtained last time to the memory 5 for storage when the found gas type is inconsistent with the gas type stored in the storage tank 1. Specifically, when the controller 2 receives an inflation start instruction input by a worker, the camera 9 performs one-time shooting and transmits a shot image to the controller 2. And if the gas type searched by the controller 2 is consistent with the gas type stored in the storage tank 1, deleting the face image obtained last time.

The implementation principle of the industrial gas safety intelligent gas supply device with the filling metering function is as follows: after the worker moves the to-be-inflated air storage tank 0 to the vicinity of the inflation inlet 14, the air inlet end of the to-be-inflated air storage tank 0 is connected with the inflation inlet 14, and then an inflation opening instruction is input through the controller 2. At this time, the camera 9 performs one-time shooting to obtain a face image of a worker; meanwhile, the reader-writer 4 reads the unique code of the electronic tag 3 on the gas storage tank 0 to be inflated and transmits the unique code to the controller 2. The controller 2 calls the gas type, the initial service life, the service life and the capacity value stored in the memory 5 in a group with the unique code, the controller 2 obtains the remaining service time of the gas storage tank 0 to be inflated according to the initial service time, the service life and the current time, and the remaining service time is displayed through a display screen; meanwhile, the controller 2 judges whether the gas type is consistent with the gas type in the storage tank 1, if so, the inflator 12 is started, and the electromagnetic valve 13 is opened; if not, the inflator 12 is braked and the solenoid valve 13 is closed.

During inflation, the flow sensor 18 transmits the detected flow value to the controller 2 in real time, and when the flow value exceeds the flow threshold value, the controller 2 brakes the inflator 12 and closes the solenoid valve 13 to complete inflation. The automatic detection of the type of the gas contained in the gas storage tank 0 to be inflated, the automatic inflation and the automatic stop of the inflation are realized, the probability of accidents occurring when the gas storage tank 0 is inflated is reduced, and the safety is improved conveniently.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.