CN207394351U - A kind of liquefied gas wisdom charging system - Google Patents
A kind of liquefied gas wisdom charging system Download PDFInfo
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- CN207394351U CN207394351U CN201721362190.7U CN201721362190U CN207394351U CN 207394351 U CN207394351 U CN 207394351U CN 201721362190 U CN201721362190 U CN 201721362190U CN 207394351 U CN207394351 U CN 207394351U
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- 230000008901 benefit Effects 0.000 description 2
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Abstract
The utility model is related to lpg filling technologies, it is desirable to provide a kind of liquefied gas wisdom charging system.Including inflation gun apparatus, the wisdom angle valve on cylinder for liquefied gas and the control case apparatus arranged on gas-filling station；Wisdom angle valve includes chip unit and executing agency, and chip unit refers to RFID chip, and executing agency refers to that drive component and limit fill component；Control unit, card reading unit, communication unit and execution unit are set on inflation gun apparatus；Case apparatus is controlled to include control unit, is realized and connected by TCP/IP communication units and Cloud Server, is realized and connected by the communication unit of RS485 communication units and inflation gun apparatus.The system operatio is simple, realizes that special bottle specially fills, prevents customer churn；High degree of automation realizes information system management and cylinder filling retrospect；Safety, simple in structure, good reliability；It can realize and liquefied gas bottle is carried out to fill control, realize that safety fills, the security risk that liquefied gas bottle fills can be reduced, protect legal liquefied gas station economic interests.
Description
Technical Field
The utility model relates to a liquefied gas fills dress technique, in particular to wisdom that liquefied gas steel bottle fills dress system.
Background
The application range of the liquefied gas is wider and wider, the application amount is larger and the development is faster and faster. The liquefied gas for domestic life mainly has two modes of pipeline transportation and bottled supply, wherein the bottled supply is to distribute the liquefied gas from a liquefied gas storage and distribution station (hereinafter referred to as liquefied gas station) to various households through a sealed steel cylinder to serve as a gas supply source of a household stove, which originates in the beginning of the 20 th century in 60 years, is originally used in oil refineries and several industrial cities, and is developed into rural areas in villages and towns. In civilian areas, there are more than ten thousand liquefied gas stations in which steel cylinders are used for gas supply. Meanwhile, liquefied gas belongs to a dangerous gas, and people often have some explosion and poisoning events in the using process. The state puts forward more strict requirements on key links of filling, circulating and using the liquefied gas cylinder. At present, information management is carried out on filling and circulation links of liquefied gas cylinders in part of developed provinces and cities in China, and the filling and circulation links are mainly managed through scanning information of gas cylinder labels. Although the methods can realize traceability of filling and circulating links to a certain extent, some illegal liquefied gas stations can still illegally fill the gas cylinders with labels, for example, some gas cylinders which have passed the annual inspection period or are unqualified can also be filled and circulated. The utility model discloses except that the gas cylinder that realizes ordinary label can trace back and information management's function, can also thoroughly realize special bottle and specially fill, stop the phenomenon that unqualified gas cylinder gets into market circulation once more.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is, overcome not enough among the prior art, provide a liquefied gas wisdom and fill dress system.
For solving the technical problem, the utility model discloses a solution is:
the intelligent filling system for the liquefied gas comprises an inflation gun device connected to a liquefied gas storage tank in an inflation station through a pressure reducing device, an intelligent angle valve arranged on the liquefied gas storage tank, and a control box device arranged on the inflation station; wherein,
the intelligent angle valve comprises a chip unit and an actuating mechanism, wherein the chip unit is an RFID chip, and the actuating mechanism is a driving component and a charge limiting component; the driving assembly is provided with a magnetic conduction component and can move under the action of an external variable magnetic field, and then the charging limiting assembly is driven to control the opening and closing of the gas channel of the angle valve;
the inflating gun device is provided with a control unit, a card reading unit, a communication unit and an execution unit, wherein the control unit is respectively connected with the card reading unit, the communication unit and the execution unit; the card reading unit is a card reader capable of reading an RFID chip, and the execution unit comprises a driving coil device and a cut-off valve electric control unit; when the gun nozzle of the inflation gun device is positioned at an inflation position, the driving coil device is close to the driving component of the intelligent angle valve and generates a variable magnetic field to drive the driving component of the intelligent angle valve when the driving coil device is electrified; the cut-off valve electric control unit is connected with a cut-off valve executing mechanism arranged on a gun barrel of the inflation gun device and controls the cut-off valve executing mechanism to drive the cut-off valve to act;
the control box device comprises a control unit, the control unit is connected with the cloud server through a TCP/IP communication unit, and is connected with the communication unit of the air inflation gun device through an RS485 communication unit.
As an improvement, the control unit of the control box device is also connected to a control box device execution unit through a signal wire, the control box device execution unit refers to an electric switch installed in the control box device and is connected to a driving coil device of the inflation gun device and a cut-off valve electric control unit through cables, the driving coil device drives a driving component of the intelligent angle valve, and the cut-off valve execution unit controls a cut-off valve execution mechanism.
As an improvement, the cloud server refers to an application server and a database center, and the application server is respectively connected with the database center and the control box through a local area network or the internet; the application server is also connected to a mobile terminal (accessed by a mobile device such as a mobile phone) or a WEB terminal (accessed by a non-mobile device such as a computer) via a local area network or the internet.
As an improvement, the smart angle valve has the following structure: the RFID chip-based angle valve comprises a valve body of an angle valve, wherein an RFID chip is fixedly arranged on the side wall of the valve body; the valve body is provided with an inflation interface and a steel cylinder interface, a channel between the inflation interface and the steel cylinder interface is provided with a vent, and the opening and closing of the vent are realized by a hand wheel through a sealing gasket controlled by a valve rod; the driving component of the angle valve comprises a strip-shaped iron core, and a spring is sleeved outside the iron core; the outer end part of the iron core is provided with a plurality of groups of magnetic conductive material metal rings; the charging limiting assembly comprises a valve core and a valve core seat which are matched with each other, a spring is sleeved outside the valve core, and the valve core seat is positioned in a channel of the steel cylinder interface; the valve core is provided with a sunken slot, and when the tail end of the iron core is inserted into the slot, the valve core can be driven to move, so that a channel of the steel cylinder interface is communicated with the vent hole.
As an improvement, the steel cylinder interface is positioned below the valve body and is provided with an internal thread for connecting a steel cylinder, and the inner side of the internal thread is provided with a limit ring for fixedly mounting a charging limit component; the inflation interface and the driving assembly are positioned on two opposite sides of the valve body; the iron core of the driving assembly is horizontally arranged, and the iron core and the valve core of the charge limiting assembly are provided with mutually vertical axes.
As an improvement, a gland used for sealing is arranged at an opening at the end part of the valve body opposite to the hand wheel, and a continuous through hole penetrates through the valve body and the gland; a metal ring pin is inserted into the through hole, and the through hole and the metal ring pin are provided with one-way check structures, so that the metal ring pin cannot be reversely pulled out after being inserted into the through hole.
As an improvement, the hand wheel is fixed at the top end of the valve rod, and the valve rod is connected with the valve body through threads on the side surface; the lower part of the valve rod is fixedly provided with a valve body, and the sealing gasket is fixedly arranged at the bottom of the valve body; the valve body is connected with the valve body through threads on the side face, and at least one group of O-shaped rings for sealing are arranged on the side wall of the valve body.
As an improvement, the inflation gun device comprises a gun barrel provided with a cut-off valve, the front end of the inflation gun device is provided with a gun nozzle, and the rear end of the inflation gun device is provided with a pipeline interface used for being connected to a liquefied gas pipeline; the inflation gun device also comprises a hollow pipe fitting which is arranged in parallel with the gun barrel, and the hollow pipe fitting and the gun barrel are fixedly connected through a connecting piece;
the hollow pipe fitting comprises an induction cover casting and a threading pipe which are connected, wherein the front end of the induction cover casting is provided with a driving coil device, and the tail end of the threading pipe is used for connecting a cable corrugated pipe; the driving coil device and the gun nozzle are positioned at the same end, and a distance is kept between the driving coil device and the gun nozzle, and the driving coil device comprises a driving coil formed by winding a single strand of copper wire and a shell covering the outside of the driving coil;
a control panel and a display device are arranged in the induction cover casting, and the display part of the display device is embedded in the surface of the induction cover casting; a control unit, a card reading unit and a communication unit are arranged on the control panel, and the control unit is respectively connected with the driving coil device, the display device, the card reading unit and the communication unit; the card reading unit is used for reading an RFID chip arranged on an external steel cylinder angle valve, the communication unit is connected with a microcomputer arranged in an external control box through a signal wire, and the driving coil device and the control panel are respectively connected to a power supply arranged in the external control box through cables; the shut-off valve has the following structure: a valve clack and a limiting ring are arranged in a gun barrel at a gun nozzle, a pull rod positioned in the gun barrel penetrates through a through hole in the center of the limiting ring, and a sealing element is arranged between the pull rod and the through hole; one end of the pull rod is connected with the valve clack, and the other end of the pull rod is connected to the manual switch through a connecting rod structure.
As an improvement, the connecting piece is provided with a hollow round tube body parallel to the hollow tube piece and used for penetrating into a gun barrel, and a gun mouth and a tail part of the gun barrel are exposed at two ends of the hollow round tube body; the tail part of the gun barrel is connected with the hollow round pipe body in any one of the following modes:
(1) the tail part of the gun barrel is provided with external threads and is sleeved with two nuts, so that the gun barrel is fastened on the end surface of the hollow round pipe body through the two nuts;
(2) the tail part of the gun barrel is provided with an external thread and is sleeved with a nut, and the nut is provided with a protruding part which can be clamped on the hollow round pipe body, so that the gun barrel is fastened on the end surface of the hollow round pipe body in a clamping and thread combined connection mode;
(3) the tail part of the gun barrel is provided with external threads and is sleeved with two nuts, the hollow round pipe body is provided with an end face flange, and at least one gun barrel extension assembly is arranged between the nuts and the end face flange; the barrel extension subassembly has the trompil of adaptation barrel external diameter to realize the fastening through bolted connection to end flange, the barrel is fastened in barrel extension subassembly through double nut.
As an improvement, the inflation gun is provided with two electrical protection devices: one of the temperature switches is a temperature switch which is arranged in the driving coil device and connected with the driving coil, and the other temperature switch is a temperature sensor which is arranged on the control panel and is connected with the control unit; the driving coil device, the induction cover casting and the threading pipe are filled with heat-conducting glue which is connected into a whole.
The inflation gun also comprises a handle, the handle is fixed on the connecting piece through a connecting rod structure, and a lifting lug is arranged on the connecting piece.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. simple operation, realizes special bottle special filling, prevents the customer from running off
Adopt this system to carry out the liquefied gas and fill dress, can keep the tradition to inflate the rifle and fill dress operation habit, inflate rifle device card rifle, fill dress one step and target in place, nevertheless more convenient than original tradition fill dress mode. The system can realize special filling of the special cylinder, and other liquefied gas stations can not fill the cylinder of the system due to the adoption of RFID chip identification, so that the loss of the cylinder of the liquefied gas station can be avoided.
2. Degree of automation is high, realizes that information-based management and gas cylinder fill dress and traces back
The system has high automation degree in the filling process, and can automatically realize the opening and closing of the intelligent angle valve actuating mechanism; opening and closing an automatic cut-off valve; the information of the gas cylinder is read and input without manual intervention; and the identity information and the gas cylinder filling information of all the gas cylinders are automatically identified and input by the system. Cloud server management can be realized to liquefied gas station operation data, and the informationization degree is high, realizes that the gas cylinder fills dress and traces back. In addition, the powerful cloud service system operation function can screen out the gas cylinders which are about to be annual inspected and exceed the limit, and the safety, the legality and the reliability of each gas cylinder circulating in the system are ensured.
3. Safety, simple structure and good reliability
The components of the system that relate to field use include: the inflation gun device, the control box device and the intelligent angle valve can adopt explosion-proof standard design, and the structure is safe and reliable; the safety of the filling process is ensured by the automatic cut-off control of the cut-off valve; compared with other electromagnetic control air inflation gun devices, the air inflation gun device has the advantages of simple and light overall structure and better reliability.
4. The system can realize filling control on the liquefied gas cylinder, realize safe filling, reduce the safety risk of filling the liquefied gas cylinder and protect the legal economic benefit of the liquefied gas station; the system realizes that the liquefied gas station can be filled with liquefied gas through the gas cylinder with the gas cylinder identity verification, so that the filling of the illegal liquefied gas station, the illegal gas cylinder or the gas cylinder of a non-local station cannot be carried out, and the system is favorable for realizing the comprehensive popularization of a fixed filling system of bottled gas and helps the government to realize the safety supervision work of the liquefied gas cylinder.
Drawings
Fig. 1 is a schematic diagram of the system structure of the present invention.
Reference numbers in the figures: the intelligent gas filling device comprises an air inflation gun device 1, a control box device 2, a 3-cut valve electric control unit, a 4-smart angle valve chip unit and a 5-cloud server.
Fig. 2 is a block diagram of the structure of the inflation gun device of the present invention.
Fig. 3 is a structural block diagram of the middle control box device of the present invention.
Fig. 4 is a block diagram of the structure of the middle cut-off valve of the present invention.
Fig. 5 is a block diagram of the structure of the intelligent angle valve in the present application.
Fig. 6 is a block diagram of a cloud server architecture of the present invention.
Detailed Description
First, it should be emphasized that the unit modules of the present invention are combinations of mechanical structures or sets of circuit logics, and are not virtual function modules. The concrete realization is the common technical means in this field, and the technical staff in this field can reproduce according to its conventional technical means of grasp through reading the utility model. The present invention does not have any method features, and the art can be implemented even without a circuit diagram.
The intelligent filling system for liquefied gas comprises an inflation gun device 1 connected to a liquefied gas storage tank in an inflation station through a pressure reducing device; the intelligent angle valve is arranged on the liquefied gas steel cylinder, and the control box device 2 is arranged on the gas charging station; wherein,
the intelligent angle valve comprises a chip unit and an actuating mechanism, wherein the chip unit is an RFID chip, and the actuating mechanism is a driving component and a charge limiting component; the driving assembly is provided with a magnetic conduction component and can move under the action of an external variable magnetic field, and then the charging limiting assembly is driven to control the opening and closing of the gas channel of the angle valve;
the inflating gun device 1 is provided with a control unit, a card reading unit, a communication unit and an execution unit, wherein the control unit is respectively connected with the card reading unit, the communication unit and the execution unit; the card reading unit is a card reader capable of reading an RFID chip, and the execution unit comprises a driving coil device and a cut-off valve electric control unit; when the nozzle of the inflation gun device 1 is positioned at an inflation position, the driving coil device is close to the driving component of the intelligent angle valve and generates a changing magnetic field to drive the driving component of the intelligent angle valve when the driving coil device is electrified; the cut-off valve electric control unit is connected with a cut-off valve executing mechanism arranged on a gun barrel of the inflation gun device 1 and controls the cut-off valve executing mechanism to drive the cut-off valve to act;
the control box device 2 comprises a control unit, the control unit is connected with the cloud server through a TCP/IP communication unit, and is connected with the communication unit of the inflation gun device 1 through an RS485 communication unit.
The control unit of the control box device 2 is also connected to a control box device execution unit through a signal wire, the control box device execution unit refers to an electric switch installed in the control box device, and is connected to a driving coil device of the inflation gun device and a cut-off valve electric control unit through cables, the driving coil device drives a driving component of the smart angle valve, and the cut-off valve execution unit controls the cut-off valve execution mechanism.
The cloud server 5 is an application server and a database center, and the application server is respectively connected with the database center and the control box through a local area network or the internet; the application server is also connected with the mobile terminal or the WEB terminal through a local area network or the Internet.
The utility model discloses in, when inflating rifle device 1 and filling the dress to the steel bottle through wisdom angle valve, the card reading unit of inflating rifle device 1 reads wisdom angle valve chip unit 4's gas cylinder data, and the inflating rifle device the control unit carries out preliminary data analysis, sends wisdom angle valve gas cylinder data to the control box device by the communication unit of inflating rifle device. The control box device stores all the identity data of the gas cylinders of the gas charging station, and after receiving the identity data of the gas cylinders, the control box device generates two following results after data comparison and processing are carried out by the control box device control unit: (1) after confirming that the data of the gas cylinder is normal, sending an inflation signal to the stop valve and the inflation gun device 1 through the control box device execution unit, and executing inflation action after the inflation gun device 1 and the stop valve receive the signal; (2) and judging whether the annual inspection date of the gas cylinder exceeds the limit or the information of the gas cylinder is not owned by the station, sending an illegal signal to the inflation gun device 1 by the control box device execution unit, displaying an abnormal state by the inflation gun device 1 through an indicator lamp after receiving the signal, and at the moment, not moving the inflation gun device 1 and the stop valve. After the gas cylinders are filled, the control box device forms inflation records and sends the data to the cloud server side, the cloud server stores gas cylinder information and inflation record data of all the liquefied gas stations, the cloud server can uniformly store and manage the liquefied gas stations, gas cylinders in provinces and cities and use related data, and related enterprises and government related supervision departments can access databases through corresponding interfaces.
Wherein the functional unit of the inflation gun device comprises: the device comprises a card reading unit, a control unit, a communication unit and an execution unit. The card reading unit is equivalent to an electronic tag (RFID) card reader, the control unit can perform simple data processing, the communication unit is responsible for receiving and transmitting signals with the control box device, and the execution unit needs to be powered by the control box device to generate a changing magnetic field. The control air inflation gun device is connected with the control box device through a cable in a signal connection and a power supply connection mode.
The control box device function unit includes: RS485 communication unit, control unit, TCP/IP communication unit, execution unit. The RS485 communication unit is in communication connection with the inflation gun device, the execution unit is connected with the inflation gun driving coil device and provides a power supply for the inflation gun driving coil device, the TCP/IP communication unit is connected with the cloud server through the Internet, and the control unit can realize control operation and also stores gas cylinder information of the liquefied gas station in a storage area.
The stop valve function is mainly in order to realize the shut-off action of liquefied gas, has included electrical control unit and actuating mechanism, opens the valve when the stop valve receives the signal of aerifing, self-closing valve after filling the end.
Wherein wisdom angle valve belongs to the cylinder valve in essence, and except the function of itself of cylinder valve, this valve has still included two modules of chip unit and actuating mechanism: the chip unit and the inflation gun device realize space (non-contact) coupling of radio frequency signals through a coupling element; and in the coupling channel, energy transfer and data exchange are realized according to a time sequence relation. The actuating mechanism is a driving component and an inflation limiting component, when an actuating unit of the inflation gun device is close to the intelligent angle valve actuating mechanism and generates an inflation signal, the driving coil device of the inflation gun device generates a variable magnetic field, the driving component of the intelligent angle valve actuating mechanism generates a certain induction current by the change of the induction magnetic field, and the valve opening action is completed by the action force of the magnetic field. Because wisdom angle valve normal condition gas cylinder can only go out gas can not admit air, only can aerify the gas cylinder when actuating mechanism has the action of opening the valve.
The cloud server is mainly used for data storage and data processing, and powerful data interface capacity can provide multi-user access.
To facilitate understanding of the present invention, the following description is given of an example structure of the smart angle valve:
the intelligent angle valve comprises a valve body of the angle valve, and an RFID chip is fixedly arranged on the side wall of the valve body; the valve body is provided with an inflation interface and a steel cylinder interface, a channel between the inflation interface and the steel cylinder interface is provided with a vent, and the opening and closing of the vent are realized by a hand wheel through a sealing gasket controlled by a valve rod; the driving component of the angle valve comprises a strip-shaped iron core, and a spring is sleeved outside the iron core; the outer end part of the iron core is provided with a plurality of groups of magnetic conductive material metal rings; the charging limiting assembly comprises a valve core and a valve core seat which are matched with each other, a spring is sleeved outside the valve core, and the valve core seat is positioned in a channel of the steel cylinder interface; the valve core is provided with a sunken slot, and when the tail end of the iron core is inserted into the slot, the valve core can be driven to move, so that a channel of the steel cylinder interface is communicated with the vent hole.
The steel cylinder interface is positioned below the valve body and provided with internal threads for connecting a steel cylinder, and the inner side of the internal threads is provided with a limiting ring for fixedly mounting a charging limiting assembly; the inflation interface and the driving assembly are positioned on two opposite sides of the valve body; the iron core of the driving assembly is horizontally arranged, and the iron core and the valve core of the charge limiting assembly are provided with mutually vertical axes.
A gland used for sealing is arranged at an opening at the end part of the valve body opposite to the hand wheel, and a continuous through hole penetrates through the valve body and the gland; a metal ring pin is inserted into the through hole, and the through hole and the metal ring pin are provided with one-way check structures, so that the metal ring pin cannot be reversely pulled out after being inserted into the through hole.
The hand wheel is fixed at the top end of the valve rod, and the valve rod is connected with the valve body through threads on the side surface; the lower part of the valve rod is fixedly provided with a valve body, and the sealing gasket is fixedly arranged at the bottom of the valve body; the valve body is connected with the valve body through threads on the side face, and at least one group of O-shaped rings for sealing are arranged on the side wall of the valve body.
To facilitate understanding of the present invention, an example structure of the air gun device is described below:
the inflation gun device comprises a gun barrel provided with a cut-off valve, the front end of the inflation gun device is provided with a gun nozzle, and the rear end of the inflation gun device is a pipeline interface used for being connected to a liquefied gas pipeline; the inflation gun device also comprises a hollow pipe fitting which is arranged in parallel with the gun barrel, and the hollow pipe fitting and the gun barrel are fixedly connected through a connecting piece; the inflation gun comprises a handle, the handle is fixed on the connecting piece through a connecting rod structure, and a lifting lug is arranged on the connecting piece.
The hollow pipe fitting comprises an induction cover casting and a threading pipe which are connected, wherein the front end of the induction cover casting is provided with a driving coil device, and the tail end of the threading pipe is used for connecting a cable corrugated pipe; the driving coil device and the gun nozzle are positioned at the same end, and a distance is kept between the driving coil device and the gun nozzle, and the driving coil device comprises a driving coil formed by winding a single strand of copper wire and a shell covering the outside of the driving coil;
the connecting piece is provided with a hollow round pipe body parallel to the hollow pipe fitting and used for penetrating into the gun barrel, and a gun mouth and a tail part of the gun barrel are exposed at two ends of the hollow round pipe body; the tail part of the gun barrel is connected with the hollow round pipe body in any one of the following modes:
(1) the tail part of the gun barrel is provided with external threads and is sleeved with two nuts, so that the gun barrel is fastened on the end surface of the hollow round pipe body through the two nuts;
(2) the tail part of the gun barrel is provided with an external thread and is sleeved with a nut, and the nut is provided with a protruding part which can be clamped on the hollow round pipe body, so that the gun barrel is fastened on the end surface of the hollow round pipe body in a clamping and thread combined connection mode;
(3) the tail part of the gun barrel is provided with external threads and is sleeved with two nuts, the hollow round pipe body is provided with an end face flange, and at least one gun barrel extension assembly is arranged between the nuts and the end face flange; the barrel extension subassembly has the trompil of adaptation barrel external diameter to realize the fastening through bolted connection to end flange, the barrel is fastened in barrel extension subassembly through double nut.
Of course, a single flange may be provided on the outside of the barrel extension assembly for secure mounting, in a manner that is substantially the same as the barrel extension assembly.
In actual operation, if need fill the intelligent angle valve of different sizes, can loosen the nut of fastening usefulness, take out the barrel from the hollow circular tube body, through increasing or reducing the fastening position of barrel extension subassembly adjustment barrel for the hollow circular tube body terminal surface to the realization is to the nimble adjustment of distance between rifle mouth and the drive coil device. This would greatly increase the applicability of the inflation gun without having to replace the entire inflation gun in the face of different sized smart angle valves.
A control panel and a display device are arranged in the induction cover casting, and the display part of the display device is embedded in the surface of the induction cover casting; a control unit, a card reading unit and a communication unit are arranged on the control panel, and the control unit is respectively connected with the driving coil device, the display device, the card reading unit and the communication unit; the card reading unit is used for reading an RFID chip arranged on an external steel cylinder angle valve, the communication unit is connected with a microcomputer arranged in an external control box through a signal wire, and the driving coil device and the control panel are respectively connected to a power supply arranged in the external control box through cables.
The shut valve has the following structure: a valve clack and a limiting ring are arranged in a gun barrel at a gun nozzle, a pull rod positioned in the gun barrel penetrates through a through hole in the center of the limiting ring, and a sealing element is arranged between the pull rod and the through hole; one end of the pull rod is connected with the valve clack, and the other end of the pull rod is connected to the manual switch through a connecting rod structure.
The air gun is provided with two electric protection devices: one of the temperature switches is a temperature switch which is arranged in the driving coil device and connected with the driving coil, and the other temperature switch is a temperature sensor which is arranged on the control panel and is connected with the control unit; the driving coil device, the induction cover casting and the threading pipe are filled with heat-conducting glue which is connected into a whole. The inflator gun operates in a flammable and explosive environment, and therefore it is necessary to consider avoiding the generation of electrical sparks or high temperatures. The utility model discloses well two electric protection device's effect is: the temperature switch is normally closed under normal conditions, so that the power supply of the driving coil is in a conducting state; when the temperature of the driving coil device 1 is overheated to exceed the set temperature, the temperature switch opens the contact to cut off the conducting circuit. The temperature sensor transmits the detected temperature data to the control unit, and when the temperature exceeds the set value, the control unit transmits a control signal to a microcomputer in the external control box to cut off the power supply of the driving coil of the inflation gun. Although the temperature sensor is not included in the driving coil device 1, the heat conduction glue integrated therewith can conduct heat, and the purpose of preventing temperature from being excessively high can be achieved even when a slightly low temperature control target is set. Meanwhile, the driving coil, all circuit boards and cables are wrapped inside by the heat conducting glue which is connected into a whole, so that fire or explosion of the liquefied gas station caused by electric sparks generated by electronic elements inside the inflating gun can be thoroughly avoided. Therefore, for prior art, the utility model discloses can realize temperature duplicate protection, reach the explosion-proof protection level who seals "ma" gluey.
Description of the working mode of the intelligent angle valve and the inflation gun device:
the card reading unit of the inflating gun device emits radio wave energy with specific frequency to the electronic tag (namely the RFID chip arranged on the intelligent angle valve) so as to drive the electronic tag circuit to send out the serial number and data inside the electronic tag circuit, and the card reading unit receives the serial number and data. The electronic tag is characterized by battery-free, contact-free, card-swiping-free, dirt-free, long service life, unique chip password in the world, no duplication, high safety and strong anti-counterfeiting technology; the control unit adopts an ARM 32-bit processor, and the maximum working frequency can reach 72 MHz. Besides the basic data analysis and operation functions, some protection functions, such as overvoltage, undervoltage, overcurrent, overtemperature, etc., can be included, and the realizable protection function implementation mode is shown in fig. 5. The communication unit adopts a two-wire system RS485 communication mode and is responsible for communication between the control panel and the microcomputer in the control box, and the RS485 communication mode has strong anti-interference capability and stable transmission. The utility model discloses in, communication and power supply cable (including communication and 5V, 36V power supply) are connected with the control box through adopting a cable bellows, specifically can select for use high low temperature resistant flexible cable.
After a new liquefied gas cylinder provided with an intelligent angle valve (namely an angle valve on a steel cylinder is provided with an RFID chip and an inflation limiting device which can be triggered by a driving coil device to open and close) is sent to a liquefied gas station, a liquefied gas inflation station person inputs gas cylinder information through the authority identity of the gas station, wherein the gas cylinder information comprises a gas cylinder number, a production date, gas cylinder property right information, gas cylinder user identity information and the like, and therefore an inflation gun of the gas station can only fill the liquefied gas cylinder registered in the system.
For the understanding of the utility model, the following description is combined with an example of the structure of the intelligent angle valve used with the inflation gun of the utility model: the intelligent angle valve comprises a driving assembly and a limit charging assembly; the driving assembly comprises a strip-shaped iron core, and a spring is sleeved on the outer side of the iron core; the outer end part of the iron core is provided with a plurality of groups of magnetic conductive material metal rings; the charging limiting assembly comprises a valve core and a valve core seat which are matched with each other, a spring is sleeved outside the valve core, and the valve core seat is positioned in a gas channel of the steel cylinder interface; the valve core is provided with a sunken slot, and when the tail end of the iron core is inserted into the slot, the valve core can be driven to move, so that a channel of the steel cylinder interface is communicated with the vent hole. The charge limiting device is used for sealing a channel of a steel cylinder interface by matching the valve core and the valve core seat in an un-unlocked state. When filling liquefied gas into the cylinder, an inflation gun with a driving coil device is used, and the driving coil device which is electrified with alternating current is close to a driving assembly of the valve. The metal ring of the driving assembly is made of special low-density magnetic conductive materials, and under the action of a changing magnetic field generated by the driving coil device 1, the metal ring can generate a magnetic field acting force opposite to the direction of the magnetic field, so that the iron core is driven to overcome the resistance of the spring to generate transverse movement, the tail end of the iron core is inserted into the groove in the valve core, and the valve core is lifted upwards. In the process of inflation, the valve core of the inflation limiting device is always kept in an open state due to the limiting effect of the iron core. When the liquefied gas is filled, the inflation gun is taken down, the driving coil device is far away from the driving assembly, and the valve core returns to the original position under the action of the spring and is matched with the valve core seat to close the channel of the steel cylinder interface. In the process, the end of the iron core of the driving assembly is extruded and returns to the initial position under the action of the spring.
When the inflation gun is butted to the intelligent angle valve installed on the liquefied gas steel cylinder for gun clamping and filling, the gun nozzle 12 of the inflation gun is butted to the inflation interface of the intelligent angle valve. At the moment, the control unit drives the card reading unit to read the information of the RFID chip arranged on the intelligent angle valve. The RFID chip has four encrypted storage sectors, and the gas cylinder data (such as gas cylinder serial number, production date, gas cylinder property information and the like) are read after the gas gun control panel respectively identifies and decrypts each storage area. The control unit carries out preliminary data analysis on the steel cylinder information and sends the data to a microcomputer in the control box through the communication unit. The microcomputer stores all gas cylinder data of the liquefied gas station, and the following two results are mainly generated after data comparison and processing:
(1) the system confirms that the data of the gas cylinder is normal and meets the filling condition, the microcomputer sends an inflation signal to the control unit, and the control unit carries out corresponding state indication and sends the inflation signal to the control box 36V power supply driving module after receiving the signal; the 36V power supply driving module outputs pulse alternating current to the driving coil device after receiving the signal, the driving coil device generates a powerful variable magnetic field after receiving the power supply, the variable magnetic field force enables the charge limiting device in the intelligent angle valve to generate magnetic force and enables the charge limiting device to be in an open state in the charging process, and liquefied gas can be charged into the gas cylinder.
(2) The system confirms that the data of the gas cylinder is abnormal or does not meet the filling condition, for example, the annual inspection date of the gas cylinder exceeds the limit, or the information of the gas cylinder is not owned by a station, the microcomputer sends an abnormal signal of the gas cylinder to the control unit, the control unit displays the abnormal gas cylinder state alarm through a display device (such as an indicator lamp or an alarm buzzer) after receiving the signal, at the moment, the 36V power supply driving module cannot receive the signal of requiring power supply, the filling limiting device in the intelligent angle valve is in a closed state, and at the moment, the liquefied gas cannot be filled into the.
The microcomputer in the control box forms an inflation record and sends data to the cloud server, the cloud server stores gas cylinder information and inflation record data of each liquefied gas station, the cloud server and platform software thereof can uniformly store and manage data of each liquefied gas station through the internet, and relevant enterprise and government relevant supervision departments can access the data through corresponding platform software interfaces.
Accordingly, the actual scope of the invention encompasses not only the disclosed embodiments, but also all equivalent aspects that implement or perform the invention under the claims.
Claims (10)
1. An intelligent filling system for liquefied gas comprises an inflation gun device connected to a liquefied gas storage tank in an inflation station through a pressure reducing device, and is characterized by further comprising an intelligent angle valve arranged on a liquefied gas steel cylinder and a control box device arranged on the inflation station; wherein,
the intelligent angle valve comprises a chip unit and an actuating mechanism, wherein the chip unit is an RFID chip, and the actuating mechanism is a driving component and a charge limiting component; the driving assembly is provided with a magnetic conduction component and can move under the action of an external variable magnetic field, and then the charging limiting assembly is driven to control the opening and closing of the gas channel of the angle valve;
the inflating gun device is provided with a control unit, a card reading unit, a communication unit and an execution unit, wherein the control unit is respectively connected with the card reading unit, the communication unit and the execution unit; the card reading unit is a card reader capable of reading an RFID chip, and the execution unit comprises a driving coil device and a cut-off valve electric control unit; when the gun nozzle of the inflation gun device is positioned at an inflation position, the driving coil device is close to the driving component of the intelligent angle valve and generates a variable magnetic field to drive the driving component of the intelligent angle valve when the driving coil device is electrified; the cut-off valve electric control unit is connected with a cut-off valve executing mechanism arranged on a gun barrel of the inflation gun device and controls the cut-off valve executing mechanism to drive the cut-off valve to act;
the control box device comprises a control unit, the control unit is connected with the cloud server through a TCP/IP communication unit, and is connected with the communication unit of the air inflation gun device through an RS485 communication unit.
2. The system as claimed in claim 1, wherein the control unit of the control box device is further connected to a control box device execution unit through a signal line, the control box device execution unit is an electric switch installed in the control box device, and is connected to a driving coil device of the inflation gun device and a cut-off valve electric control unit through cables, the former realizes a driving component for driving the smart angle valve, and the latter realizes control of a cut-off valve execution mechanism.
3. The system according to claim 1, wherein the cloud server is an application server and a database center, and the application server is respectively connected with the database center and the control box through a local area network or the internet; the application server is also connected with the mobile terminal or the WEB terminal through a local area network or the Internet.
4. The system of any one of claims 1 to 3, wherein the smart angle valve has the following structure: the RFID chip-based angle valve comprises a valve body of an angle valve, wherein an RFID chip is fixedly arranged on the side wall of the valve body; the valve body is provided with an inflation interface and a steel cylinder interface, a channel between the inflation interface and the steel cylinder interface is provided with a vent, and the opening and closing of the vent are realized by a hand wheel through a sealing gasket controlled by a valve rod; the driving component of the angle valve comprises a strip-shaped iron core, and a spring is sleeved outside the iron core; the outer end part of the iron core is provided with a plurality of groups of magnetic conductive material metal rings; the charging limiting assembly comprises a valve core and a valve core seat which are matched with each other, a spring is sleeved outside the valve core, and the valve core seat is positioned in a channel of the steel cylinder interface; the valve core is provided with a sunken slot, and when the tail end of the iron core is inserted into the slot, the valve core can be driven to move, so that a channel of the steel cylinder interface is communicated with the vent hole.
5. The system of claim 4, wherein the steel cylinder interface is positioned below the valve body, the steel cylinder interface is provided with internal threads for connecting a steel cylinder, and a limit ring for fixedly mounting the charge limiting component is arranged inside the internal threads; the inflation interface and the driving assembly are positioned on two opposite sides of the valve body; the iron core of the driving assembly is horizontally arranged, and the iron core and the valve core of the charge limiting assembly are provided with mutually vertical axes.
6. The system of claim 4, wherein a gland for sealing is provided at an opening at the end of the valve body opposite the hand wheel, and a continuous through hole is provided through the valve body and the gland; a metal ring pin is inserted into the through hole, and the through hole and the metal ring pin are provided with one-way check structures, so that the metal ring pin cannot be reversely pulled out after being inserted into the through hole.
7. The system of claim 4, wherein the hand wheel is fixed to the top end of a valve stem, and the valve stem is connected with the valve body through lateral threads; the lower part of the valve rod is fixedly provided with a valve body, and the sealing gasket is fixedly arranged at the bottom of the valve body; the valve body is connected with the valve body through threads on the side face, and at least one group of O-shaped rings for sealing are arranged on the side wall of the valve body.
8. A system according to any one of claims 1 to 3, wherein the inflation gun device comprises a barrel with a shut-off valve, a gun nozzle at the front end and a pipe connection at the rear end for connection to a liquefied gas line; the inflation gun device also comprises a hollow pipe fitting which is arranged in parallel with the gun barrel, and the hollow pipe fitting and the gun barrel are fixedly connected through a connecting piece;
the hollow pipe fitting comprises an induction cover casting and a threading pipe which are connected, wherein the front end of the induction cover casting is provided with a driving coil device, and the tail end of the threading pipe is used for connecting a cable corrugated pipe; the driving coil device and the gun nozzle are positioned at the same end, and a distance is kept between the driving coil device and the gun nozzle, and the driving coil device comprises a driving coil formed by winding a single strand of copper wire and a shell covering the outside of the driving coil;
a control panel and a display device are arranged in the induction cover casting, and the display part of the display device is embedded in the surface of the induction cover casting; a control unit, a card reading unit and a communication unit are arranged on the control panel, and the control unit is respectively connected with the driving coil device, the display device, the card reading unit and the communication unit; the card reading unit is used for reading an RFID chip arranged on an external steel cylinder angle valve, the communication unit is connected with a microcomputer arranged in an external control box through a signal wire, and the driving coil device and the control panel are respectively connected to a power supply arranged in the external control box through cables; the shut-off valve has the following structure: a valve clack and a limiting ring are arranged in a gun barrel at a gun nozzle, a pull rod positioned in the gun barrel penetrates through a through hole in the center of the limiting ring, and a sealing element is arranged between the pull rod and the through hole; one end of the pull rod is connected with the valve clack, and the other end of the pull rod is connected to the manual switch through a connecting rod structure.
9. The system of claim 8, wherein the connector has a hollow cylindrical body parallel to the hollow tubular member for penetrating the barrel, the mouth and tail of the barrel being exposed at opposite ends of the hollow cylindrical body; the tail part of the gun barrel is connected with the hollow round pipe body in any one of the following modes:
(1) the tail part of the gun barrel is provided with external threads and is sleeved with two nuts, so that the gun barrel is fastened on the end surface of the hollow round pipe body through the two nuts;
(2) the tail part of the gun barrel is provided with an external thread and is sleeved with a nut, and the nut is provided with a protruding part which can be clamped on the hollow round pipe body, so that the gun barrel is fastened on the end surface of the hollow round pipe body in a clamping and thread combined connection mode;
(3) the tail part of the gun barrel is provided with external threads and is sleeved with two nuts, the hollow round pipe body is provided with an end face flange, and at least one gun barrel extension assembly is arranged between the nuts and the end face flange; the barrel extension subassembly has the trompil of adaptation barrel external diameter to realize the fastening through bolted connection to end flange, the barrel is fastened in barrel extension subassembly through double nut.
10. The system according to claim 8, characterized in that said inflation gun is provided with two electrical protection devices: one of the temperature switches is a temperature switch which is arranged in the driving coil device and connected with the driving coil, and the other temperature switch is a temperature sensor which is arranged on the control panel and is connected with the control unit; the driving coil device, the induction cover casting and the threading pipe are filled with heat-conducting glue which is connected into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201721362190.7U CN207394351U (en) | 2017-10-22 | 2017-10-22 | A kind of liquefied gas wisdom charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721362190.7U CN207394351U (en) | 2017-10-22 | 2017-10-22 | A kind of liquefied gas wisdom charging system |
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| CN207394351U true CN207394351U (en) | 2018-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721362190.7U Expired - Fee Related CN207394351U (en) | 2017-10-22 | 2017-10-22 | A kind of liquefied gas wisdom charging system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662430A (en) * | 2018-07-18 | 2018-10-16 | 广州宽度信息技术有限公司 | A kind of chain charging device of bottled gas and its application method |
| CN112833331A (en) * | 2021-01-07 | 2021-05-25 | 多立恒（北京）能源技术股份公司 | Gas cylinder system, gas cylinder valve gas outlet pipe control method and gas cylinder valve gas outlet pipe control device |
| CN113483264A (en) * | 2021-07-29 | 2021-10-08 | 张文材 | Anti-charging valve |
| CN114593359A (en) * | 2022-03-23 | 2022-06-07 | 嘉兴亚航信息技术有限公司 | Safety prevention monitoring system for gas cylinder filling station |
-
2017
- 2017-10-22 CN CN201721362190.7U patent/CN207394351U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662430A (en) * | 2018-07-18 | 2018-10-16 | 广州宽度信息技术有限公司 | A kind of chain charging device of bottled gas and its application method |
| CN112833331A (en) * | 2021-01-07 | 2021-05-25 | 多立恒（北京）能源技术股份公司 | Gas cylinder system, gas cylinder valve gas outlet pipe control method and gas cylinder valve gas outlet pipe control device |
| CN113483264A (en) * | 2021-07-29 | 2021-10-08 | 张文材 | Anti-charging valve |
| CN113483264B (en) * | 2021-07-29 | 2023-12-08 | 嘉兴艾迪西暖通科技有限公司 | Anti-filling valve |
| CN114593359A (en) * | 2022-03-23 | 2022-06-07 | 嘉兴亚航信息技术有限公司 | Safety prevention monitoring system for gas cylinder filling station |
| CN114593359B (en) * | 2022-03-23 | 2024-03-15 | 嘉兴亚航信息技术有限公司 | Safety prevention monitoring system for gas cylinder filling station |
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