CN108266538B - Composite double-self-stop valve of liquefied gas cylinder and control system of Internet of things - Google Patents
Composite double-self-stop valve of liquefied gas cylinder and control system of Internet of things Download PDFInfo
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- CN108266538B CN108266538B CN201810152111.2A CN201810152111A CN108266538B CN 108266538 B CN108266538 B CN 108266538B CN 201810152111 A CN201810152111 A CN 201810152111A CN 108266538 B CN108266538 B CN 108266538B
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- gas cylinder
- self
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- 239000002131 composite material Substances 0.000 title claims abstract description 76
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 230000000149 penetrating effect Effects 0.000 claims abstract description 12
- 230000000903 blocking effect Effects 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 27
- 150000001875 compounds Chemical class 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000001228 spectrum Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 113
- 239000003990 capacitor Substances 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 101100079986 Caenorhabditis elegans nrfl-1 gene Proteins 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010411 cooking Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 235000015429 Mirabilis expansa Nutrition 0.000 description 2
- 244000294411 Mirabilis expansa Species 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000013536 miso Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The invention relates to a liquefied gas cylinder composite double-self-stop valve and an Internet of things control system, wherein a composite stop valve clack is arranged in a valve body of the valve, the composite stop valve clack consists of a main rod valve clack and a needle rod valve clack, the main rod valve clack can automatically axially move and reset to a stop state and is arranged in a first air cavity and a second air cavity in a penetrating way, one end of the first air cavity axially penetrates out of the valve body, and one end of the second air cavity is provided with a sealing stop part a which seals and blocks a channel between the first air cavity and the second air cavity in the stop state; the main rod valve clack is a hollow rod penetrating through two ends, the needle rod valve clack is installed in the hollow cavity of the main rod valve clack in a manner of automatically axially moving and resetting to a cut-off state, and a sealing cut-off part b for sealing and blocking an air inlet end of an air passage between the needle rod valve clack and the main rod valve clack in the cut-off state is also arranged on the needle rod valve clack; therefore, the valve can be automatically cut off in double, the leakage of liquefied gas is avoided, the use safety of the liquefied gas is high, and the structure is simple, ingenious and compact.
Description
Technical Field
The invention belongs to the technical field of liquefied gas cylinder valves and control, and particularly relates to a liquefied gas cylinder composite double-self-stop valve and an Internet of things control system.
Background
A large part of urban and rural families in China use bottled liquefied petroleum gas fuel for a long time, and a manual control stop valve in a traditional liquefied gas cylinder is in an open state for a long time in the process of using gas in the family, so that gas pressure exists at a plurality of positions of an outlet of the liquefied gas cylinder, a voltage stabilizer, a connecting hose and a cooking bench all the time, gas leakage is easy to occur at the plurality of positions, and public hazard caused by explosion occurs in China, and the public hazard is also a difficult problem to be solved by the government and the family in China.
Summary of the invention
In order to solve the problems in the prior art, the invention provides the Internet-of-things type liquefied gas cylinder composite double-self-stop valve control system which can realize double automatic stop of the valve, effectively prevent liquefied gas from leaking, has high liquefied gas use safety, has a very simple, ingenious and compact structure, can be networked with an urban gas management network center, constructs an Internet of things supervision and gas safety use service platform for urban and rural liquefied gas cylinders, realizes remote monitoring and further improves the liquefied gas use safety.
In order to solve the technical problems, the invention adopts the following technical scheme:
the composite double-self-stop valve for the liquefied gas cylinder comprises a valve body, wherein a first air cavity, a second air cavity and a composite stop valve clack which are communicated are arranged in the valve body, and the composite stop valve clack consists of a main rod valve clack and a needle rod valve clack; the main rod valve clack can automatically axially move and reset to a cut-off state and is arranged in the first air cavity and the second air cavity in a penetrating way, one end of the main rod valve clack, which is positioned in the first air cavity, axially penetrates out of the valve body, and one end of the main rod valve clack, which is positioned in the second air cavity, is provided with a sealing cut-off part a which seals and blocks a channel between the first air cavity and the second air cavity in the cut-off state; the needle rod valve clack is a hollow rod penetrating through two ends, can automatically axially move and reset to a cut-off state and is arranged in a hollow cavity of the main rod valve clack, a gap is reserved between the needle rod valve clack positioned at the first air cavity and the second air cavity and the inner wall of the hollow cavity of the main rod valve clack, an air channel communicated with the first air cavity is formed, and a sealing cut-off part b for sealing and blocking the air inlet end of the air channel in the cut-off state is also arranged on the needle rod valve clack; the valve body is also provided with an air pipe joint and an air bottle pipe internal thread joint, the air pipe joint is communicated with the first air cavity, and the air bottle pipe internal thread joint is communicated with the second air cavity and the air inlet end of the air passage and is movably connected with the main rod valve clack and the needle rod valve clack.
Further, the end part of the main rod valve clack, which is positioned in the second air cavity, is provided with a protective sleeve, the main rod valve clack is movably sleeved on the gas cylinder pipe internal thread connector through the protective sleeve, the protective sleeve is internally provided with a main rod valve clack spring, and two ends of the main rod valve clack spring are respectively propped against the main rod valve clack and the gas cylinder pipe internal thread connector.
Further, the reverse end of the threaded joint in the needle bar valve connecting gas cylinder tube is sleeved with a needle bar valve spring, and two ends of the needle bar valve spring are respectively propped against the needle bar valve clack and the main rod valve clack.
Further, a spring cavity which is connected with the hollow cavity and is coaxial with the hollow cavity is arranged on the end face of one end of the main rod valve clack penetrating out of the valve body, one end of the needle rod valve clack extends out of the spring cavity and is provided with an end nut, the needle rod valve clack spring is sleeved on the needle rod valve clack and is positioned in the spring cavity, and two ends of the needle rod valve clack spring are respectively propped against the bottom faces of the end nut and the spring cavity.
Further, a sealing ring a tightly connected with the valve body is arranged at the position, penetrating out of the valve body, of the main rod valve clack, and a sealing ring b tightly connected with the inner wall of the hollow cavity is arranged at any position outside an air passage formed between the needle rod valve clack and the inner wall of the hollow cavity of the main rod valve clack.
Further, the gas cylinder pipe internal thread joint is an external thread joint and is provided with a guide hole coaxial with the needle bar valve clack, one end of the needle bar valve clack provided with the sealing stop part b is movably inserted in the guide hole, and an air inlet hole communicated with the second air cavity and the air inlet end of the air channel is arranged on the periphery side of the guide hole.
Further, an electronic tag for storing the electronic identity of the liquefied gas cylinder, filling and recording by using the liquefied gas is arranged in the valve body.
Further, the liquefied gas cylinder composite double-self-stop valve is a manual liquefied gas cylinder composite double-self-stop valve and further comprises a hand wheel cock, wherein the hand wheel cock is arranged on the valve body, and the inner diameter cylinder of the hand wheel cock is in driving connection with the composite stop valve clack.
Further, the compound double-self-stop valve of the liquefied gas cylinder is a compound double-self-stop valve of the liquefied gas cylinder of the Internet of things type, and further comprises a controller arranged on the valve body, wherein the controller comprises a body, a valve clack driver arranged in the body and a circuit board, the valve clack driver is connected with the circuit board in a conducting manner, and a driving rod of the valve clack driver is connected with the compound stop valve clack in a driving manner.
Further, the valve clack driver is an electromagnet driver and comprises an electromagnetic yoke, an electromagnetic coil, an armature push rod and an armature, wherein the electromagnetic yoke is fixedly arranged on the body, the armature is movably arranged on the electromagnetic yoke along the axial direction of the composite stop valve clack, one end of the armature push rod is fixedly arranged on the armature, the other end of the armature push rod passes through the electromagnetic yoke and is in driving connection with the composite stop valve clack, and the axes of the armature push rod and the composite stop valve clack are the same; the electromagnetic coil is arranged on the electromagnetic yoke, is positioned on two sides of the armature push rod, and is connected with the circuit board in a conducting way.
Further, the controller is provided with an electronic tag reading and writing device, the electronic tag reading and writing device is connected with the circuit board in a conducting mode, and an electronic tag matched with the electronic tag reading and writing device is arranged in the valve body.
Further, the circuit board is integrated with a microprocessor IC1, a reset circuit IC2, a memory IC3, an RFIC read-write chip IC4, a modem IC5, a voltage stabilizer W1, triodes T1-T3, a diode bridge D0, a diode D1, a voltage stabilizer D2, crystal oscillators Z1-Z3, resistors R0-R14, capacitors C0-C19, inductors L1-L2 and an electromagnet L0; the communication serial port TXD/RXD of the microprocessor IC1 is connected with the communication serial port TXD/RXD of the modem IC5, the analog signal output/input AOU/AIN end of the modem IC5 is connected with the base electrode of the triode T1 and the anode of the diode bridge through a capacitor C6/C5, and a communication Bus of a DCPL-Bus two-wire system direct current power supply and carrier communication sharing line is formed; the microprocessor IC1 and the RFIC read-write chip IC4 are in one-to-one correspondence connection through SCK/MOSI/MISO/NSS pins and A2/A0/D0/ALE pins, so that digital communication is realized; the RFIC read-write chip IC4, peripheral resistors R12-R14, capacitors C11-C19, a crystal oscillator Z3, inductors L1-L2 and an RFIC receiving-transmitting antenna jointly form a circuit of an RFIC electronic tag in the non-contact read-write liquefied gas cylinder composite double-self-cut-off valve; the port P1/P2 of the diode bridge D0 is connected with and inputs safe direct current voltage, the control circuit of the electromagnet L0 is connected to the P0.3 port of the microprocessor IC1 through the base electrode of the triode T3 and the resistor R9, and the P0.5 port of the microprocessor IC1 is connected with two ends of the electromagnet L0 to monitor the electrified attraction state of the electromagnet L0.
The control system of the compound double-self-stop valve of the liquefied gas cylinder of the Internet of things type is characterized by comprising a timing control and gas leakage alarm network bridge, a remote management service platform and the compound double-self-stop valve of the liquefied gas cylinder, wherein the timing control and gas leakage alarm network bridge is arranged on each liquefied gas cylinder user, the controller of the compound double-self-stop valve of the liquefied gas cylinder is connected with the timing control and gas leakage alarm network bridge in a conducting mode, and the timing control and gas leakage alarm network bridge is in communication connection with the remote management service platform through a global satellite positioning system and a wireless communication network.
Further, the controller of the composite double-self-cut-off valve of the liquefied gas cylinder is connected with a timing control and gas leakage alarm network bridge through a DSPL-Bus communication Bus in a conducting mode, and the timing control and gas leakage alarm network bridge determines the geographic position of a user using the liquefied gas cylinder through a Beidou satellite GPS positioning system and is connected with a remote management service platform through a mobile wireless communication base station of NB-IoT/eMTC/GPRS/GSM wireless spectrum in a communication mode.
The beneficial effects of the invention are as follows:
according to the technical scheme, the double automatic stop of the valve can be realized, the leakage of liquefied gas is effectively stopped, the use safety of the liquefied gas is greatly improved, and the sealing performance of the structure of the composite stop valve clack is better when the pressure of the liquefied gas cylinder is higher, so that the structure is quite simple, ingenious and compact, and is beneficial to mass production and wide popularization and application.
In addition, the internet of things type liquefied gas cylinder composite double-self-cut-off valve can be networked with an urban gas management network center through the NB-IoT/eMTC/GPRS/GSM mobile wireless communication platform in China, so that an urban and rural liquefied gas cylinder internet of things supervision and gas safety use service platform is constructed, remote monitoring is realized, accidents such as fire disaster caused by untimely closing are avoided, and the use safety of liquefied gas is further improved.
Drawings
FIG. 1 is a schematic view of an embodiment of a composite dual self-shutoff valve for a liquefied gas cylinder according to the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of a composite dual self-shutoff valve for a liquefied gas cylinder according to the present invention;
FIG. 3 is a schematic view of the structure of an internal threaded joint of a cylinder tube in an embodiment of a composite double self-shutoff valve for a liquefied gas cylinder according to the present invention;
FIG. 4 is a schematic cross-sectional view of an internal threaded joint of a cylinder tube in an embodiment of a composite double self-shutoff valve for a liquefied gas cylinder according to the present invention;
FIG. 5 is a schematic cross-sectional view of a liquefied gas cylinder with a hand wheel cock according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a controller mounted on an embodiment of a composite dual self-shutoff valve for a liquefied gas cylinder according to the present invention;
FIG. 7 is a schematic circuit diagram of a controller in an embodiment of a composite dual self-shutoff valve for a liquefied gas cylinder according to the present invention;
FIG. 8 is a schematic circuit diagram of a controller in an embodiment of a composite dual self-shutoff valve for a liquefied gas cylinder according to the present invention;
fig. 9 is a schematic structural diagram of a liquefied gas cylinder internet of things supervision and gas safety use service platform formed by an embodiment of a liquefied gas cylinder composite double self-stop valve.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 9:
the embodiment of the invention discloses a composite double-self-stop valve for a liquefied gas cylinder, which comprises a valve body 40, wherein a first air cavity 40-1, a second air cavity 40-2 and a composite stop valve clack which are communicated are arranged in the valve body 40, and the composite stop valve clack consists of a main rod valve clack 30 and a needle rod valve clack 20. The main rod valve clack 30 is automatically axially movable and returns to a cut-off state and is arranged in the first air cavity 40-1 and the second air cavity 40-2 in a penetrating manner, one end of the first air cavity 40-1 axially penetrates out of the valve body 40, one end of the second air cavity 40-2 is provided with a sealing cut-off part a 30-4 for sealing and blocking a channel between the first air cavity 40-1 and the second air cavity 40-2 in the cut-off state, namely: the sealing stop surface of the sealing stop part a 30-4 is tightly combined with the stop surface of the passage opening between the first air cavity 40-1 and the second air cavity 40-2; the main rod valve clack 30 is a hollow rod penetrating through two ends, the needle rod valve clack 20 is installed in the hollow cavity of the main rod valve clack 30 in a manner of automatically axially moving and resetting to a cut-off state, a gap is reserved between the needle rod valve clack 20 positioned at the first air cavity 40-1 and the second air cavity 40-2 and the inner wall of the hollow cavity of the main rod valve clack 30, an air passage 30-5 communicated with the first air cavity 40-1 is formed, and a sealing cut-off part b 20-3 for sealing and blocking the air inlet end 30-9 of the air passage 30-5 in the cut-off state is also arranged on the needle rod valve clack 20, namely: the sealing stop surface of the sealing stop part b 20-3 is tightly combined with the stop surface of the air inlet end 30-9 of the air passage 30-5; the valve body 40 is also provided with an air pipe connector 30-3 and an air cylinder connector 10, the air pipe connector 30-3 is communicated with the first air cavity 40-1, and the air cylinder pipe internal thread connector 10 is communicated with the second air cavity 40-2 and the air inlet end 30-9 of the air channel 30-5 and is movably connected with the main rod valve clack 30 and the needle rod valve clack 20.
The specific structure can be as follows: the first air cavity 40-1, the second air cavity 40-2, the main rod valve clack 30 and the needle rod valve clack 20 have the same axle center, the end of the main rod valve clack 30, which is positioned at the second air cavity 10-2, is provided with a protective sleeve 30-2, which is movably sleeved on the air cylinder pipe internal threaded joint 10 through the protective sleeve 30-2, the protective sleeve 30-2 is internally provided with a main rod valve clack spring 30-1, two ends of the main rod valve clack spring 30-1 are respectively propped against the main rod valve clack 30 and the air cylinder pipe internal threaded joint 10, wherein the air cylinder pipe internal threaded joint 10 is an external threaded joint, which is provided with a guide hole 10-1 coaxial with the needle rod valve clack 20, one end of the needle rod valve clack 20, which is provided with a sealing stop part b 20-3, is movably spliced in the guide hole 10-1, and the air cavity 10-2, which is positioned at the periphery of the guide hole 10-1, is communicated with the air inlet hole 10-2 of the second air cavity 40-2 and the air outlet hole 30-5, and the air outlet 30-5 are communicated with the first air cavity 40-1 through the hole 30-8 arranged on the main rod valve clack 30. The reverse end of the needle bar valve clack 20 connected with the gas cylinder pipe internal thread joint 10 is sleeved with a needle bar valve clack spring 20-1, two ends of the needle bar valve clack spring 20-1 are respectively propped against the needle bar valve clack 20 and the main rod valve clack 30, as shown in figure 2, the end face of one end of the main rod valve clack 30 penetrating out of the valve body 40 is provided with a spring cavity 30-6 which is connected with a hollow cavity and coaxial, one end of the needle bar valve clack 20 extends out of the spring cavity 30-6 and is provided with an end nut 20-2, and the needle bar valve clack spring 20-1 is sleeved on the needle bar valve clack 20 and is positioned in the spring cavity 30-6, and two ends are respectively propped against the bottom surfaces of the end nut 20-2 and the spring cavity 30-6. The main rod valve clack 30 passes through the valve body 40 (sealing screw plug 50) and is provided with a sealing ring a 30-7 tightly connected with the valve body 40 (sealing screw plug 50), and any position outside the air passage 30-5 formed between the needle rod valve clack 20 and the hollow cavity inner wall of the main rod valve clack 30 is provided with a sealing ring b 20-4 tightly connected with the hollow cavity inner wall.
When the composite double self-cut-off valve for the liquefied gas cylinder is installed to the liquefied gas cylinder for use, the composite cut-off valve clack (the main rod valve clack 30 and the needle rod valve clack 20) can be driven to axially move towards the direction of the threaded joint 10 in the gas cylinder pipe in a manual or electric mode; as shown in fig. 5, the schematic cross-sectional structure of the liquefied gas cylinder composite double-self-stop valve for opening the main rod valve clack 30 by using a hand wheel cock in a liquefied gas filling station, the manual liquefied gas cylinder composite double-self-stop valve further comprises a hand wheel cock 90, the hand wheel cock 90 is mounted on the valve body 40, the inner diameter cylinder 90-1 of the hand wheel cock is in driving connection with the composite stop valve clack (the main rod valve clack 30), and the sealing stop part a 30-4 of the main rod valve clack 30 is opened, so that a channel between the first air cavity 40-1 and the second air cavity 40-2 is opened; or as shown in fig. 6, the liquefied gas cylinder composite double self-stop valve further comprises a controller, wherein the controller is arranged on the valve body 40, a valve clack driver is arranged in the controller, and a driving rod of the valve clack driver is in driving connection with the composite stop valve clack (needle rod valve clack 20); as shown in fig. 7, the driving rod of the valve clack driver pushes the needle rod valve 20 to open the sealing stop part b 20-3, and opens the air inlet end 30-9 of the air channel 30-5, so as to output the liquefied gas in the liquefied gas cylinder through the gas cylinder pipe internal threaded joint 10, the second air cavity 40-2 or the air channels 20-5, 30-5, the first air cavity 40-1 and the air pipe joint 30-3 in sequence for use; or the liquefied gas fuel filling is realized through the air pipe joint 30-3, the first air cavity 40-1, the second air cavity 40-2 or the air passage 30-5 and the gas cylinder pipe internal thread joint 10 in sequence. When the use is finished or the filling is finished, the manual or electric driving action on the upper direction of the composite stop valve is canceled, at the moment, the main rod valve clack 30 automatically moves axially under the combined action of the main rod valve clack spring 30-1 and the pressure in the liquefied gas cylinder until the sealing stop part a 30-4 seals and blocks the channel between the first air cavity 40-1 and the second air cavity 40-2, and simultaneously, the needle rod valve clack 20 automatically moves axially and resets to the sealing stop part b 20-3 to seal and block the air inlet end 30-9 of the air channel 30-5 in the needle rod valve clack spring 20-1, so that the double automatic stop of the valve is realized, the leakage of the liquefied gas is effectively stopped, the use safety of the liquefied gas is greatly improved, and the sealing performance of the structure of the composite stop valve clack is better when the pressure of the liquefied gas cylinder is larger, the structure is very simple, ingenious and compact, and is favorable for mass production and wide popularization and application.
In addition, when the hand wheel cock 90 and the controller are removed, the plastic cover 70 is screwed on, so that the liquefied gas cylinder can be safely transported without leakage and other objects can be prevented from entering, the transportation safety is improved, and the normal working performance of the valve is ensured. Moreover, an electronic tag 60 for storing the electronic identity of the liquefied gas cylinder, filling and recording the use of the liquefied gas is also arranged in the valve body 40, which is beneficial to the management of the liquefied gas cylinder.
In addition, as shown in fig. 6 and 8, the composite double-self-stop valve for the liquefied gas cylinder is a composite double-self-stop valve for the liquefied gas cylinder in the internet of things type, and further comprises a controller, wherein the controller is arranged on the valve body 40, a valve clack driver is arranged in the controller, and a driving rod of the valve clack driver is in driving connection with the composite stop valve clack. The controller comprises a body 80, a valve clack driver and a circuit board 80-8, wherein the valve clack driver and the circuit board 80-8 are arranged in the body 80 and are connected in a conducting way. The valve clack driver is an electromagnet driver and comprises an electromagnetic yoke 80-1, an electromagnetic coil 80-4, an armature push rod 80-5 and an armature 80-6, wherein the electromagnetic yoke 80-1 is fixedly arranged on a body 80, the armature 80-6 is movably arranged on the electromagnetic yoke 80-1 along the axial direction of the composite stop valve clack, one end of the armature push rod 80-5 is fixedly arranged on the armature 80-6, the other end of the armature push rod passes through the electromagnetic yoke 80-1 and is in driving connection with the composite stop valve clack, and the axle centers of the armature push rod 80-5 and the composite stop valve clack are the same; the electromagnetic coil 80-4 is mounted on the electromagnetic yoke 80-1, is positioned on both sides of the armature push rod 80-5, and is in conductive connection with the circuit board 80-8. The circuit board 80-8 is integrated with a microprocessor IC1, a reset circuit IC2, a memory IC3, an RFIC read-write chip IC4, a modem IC5, a voltage stabilizer W1, triodes T1-T3, a diode bridge D0, a diode D1, a voltage stabilizing tube D2, crystal oscillators Z1-Z3, resistors R0-R14, capacitors C0-C19, inductors L1-L2 and an electromagnet L0; the microprocessor IC1 may be a low-power consumption 51-series microprocessor, and the communication serial port txd\rxd of the microprocessor IC5 is connected with the communication serial port txd\rxd of the modem IC; the analog signal output/input AOU/AIN end of the modem IC5 is connected with the base electrode of the triode T1 and the anode of the diode bridge through a capacitor C6/C5, and forms a communication Bus of a DCPL-Bus two-wire system direct current power supply and carrier communication sharing circuit; the microprocessor IC1 and the RFIC read-write chip IC4 are in one-to-one correspondence connection through SCK/MOSI/MISO/NSS pins and A2/A0/D0/ALE pins, so that digital communication is realized; the RFIC read-write chip IC4, peripheral resistors R12-R14, capacitors C11-C19, a crystal oscillator Z3, inductors L1-L2 and an RFIC receiving-transmitting antenna jointly form a circuit of an RFIC electronic tag in the non-contact read-write liquefied gas cylinder composite double-self-cut-off valve; the port P1/P2 of the diode bridge D0 is connected with and inputs safe direct current voltage, the control circuit of the electromagnet L0 is connected to the P0.3 port of the microprocessor IC1 through the base electrode of the triode T3 and the resistor R9, and the P0.5 port of the microprocessor IC1 is connected with two ends of the electromagnet L0 to monitor the electrified attraction state of the electromagnet L0. The controller is provided with an electronic tag reading and writing device 80-2, the electronic tag reading and writing device 80-2 is connected with the circuit board 80-8 in a conducting way, and the valve body 40 is internally provided with an electronic tag 60 matched with the electronic tag reading and writing device 80-2. The electronic tag reader/writer 80-2 is an RFIC transceiver antenna, which is an RFIC transceiver antenna chip (i.e., an RFIC circuit is encapsulated in a ring-shaped plastic sheet) made of a PCB, and the electronic tag 60 is an RFIC electronic tag.
When the electromagnet driver is electrified, the armature push rod 80-5 and the armature 80-6 move axially towards the composite stop valve clack together, the armature push rod 80-5 pushes the needle bar valve clack 20 to move axially towards the gas cylinder connector 10, the gas inlet end 30-9 of the gas channel 30-5 is opened, at the moment, liquefied gas flows out through the gas outlet hole 30-8 of the main bar valve clack 30, and gas is supplied for use through the voltage stabilizer, the gas hose and the cooking bench which are mutually communicated on the composite double self-stop valve; when the electromagnet driver is powered off, the composite double-self-cut-off valve automatically closes the sealing cut-off part b 20-3, and at the moment, the voltage stabilizer, the gas hose and the cooking bench which are mutually communicated on the composite double-self-cut-off valve have no gas pressure and have no gas leakage problem.
Therefore, the Internet of things type liquefied gas cylinder composite double-self-cut-off valve can be networked with the urban gas management network center through the NB-IoT/eMTC/GPRS/GSM mobile wireless communication platform of China, so that the urban and rural liquefied gas cylinder Internet of things supervision and gas safety use service platform is constructed, remote monitoring is realized, accidents such as fire disaster and the like caused by untimely closing are avoided, and the use safety of liquefied gas is further improved. As shown in fig. 9, a control system of a compound double self-stop valve of an internet of things type liquefied gas cylinder is characterized by comprising a timing control and gas leakage alarm network bridge 100 installed on each liquefied gas cylinder user, a remote management service platform and the compound double self-stop valve of the liquefied gas cylinder installed on the liquefied gas cylinder, wherein a controller of the compound double self-stop valve of the liquefied gas cylinder is in conductive connection with the timing control and gas leakage alarm network bridge 100, and the timing control and gas leakage alarm network bridge 100 is in communication connection with the remote management service platform through a global satellite positioning system and a wireless communication network. The controller of the liquefied gas cylinder composite double-self-cut-off valve is connected with the timing control and gas leakage alarm network bridge 100 in a conducting mode through a DSPL-Bus communication Bus, and the timing control and gas leakage alarm network bridge 100 determines the position of a liquefied gas cylinder using user through a Beidou satellite GPS positioning system and is connected with a remote management service platform in a communication mode through a mobile wireless communication base station of NB-IoT/eMTC/GPRS/GSM wireless spectrum. The household user can set the gas using time through the timing control and gas leakage alarm network bridge 100, and start the electromagnet in the networked intelligent electromagnetic controller to start the composite double-self-stop valve to open the gas, and the composite double-self-stop valve can be automatically closed when the set time is counted down.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (12)
1. The utility model provides a compound two from stop valve of liquefied gas bottle which characterized in that: the valve comprises a valve body (40), wherein a first air cavity (40-1), a second air cavity (40-2) and a composite stop valve clack which are communicated are arranged in the valve body (40), and the composite stop valve clack consists of a main rod valve clack (30) and a needle rod valve clack (20); the main rod valve clack (30) can automatically axially move and reset to a cut-off state and is arranged in the first air cavity (40-1) and the second air cavity (40-2) in a penetrating mode, one end of the first air cavity (40-1) axially penetrates out of the valve body (40), and one end of the second air cavity (40-2) is provided with a sealing cut-off part a (30-4) for sealing and blocking a channel between the first air cavity (40-1) and the second air cavity (40-2) in the cut-off state; the main rod valve clack (30) is a hollow rod penetrating through two ends, the needle rod valve clack (20) is installed in the hollow cavity of the main rod valve clack (30) in a manner of automatically axially moving and resetting to a cut-off state, a gap is reserved between the needle rod valve clack (20) positioned at the first air cavity (40-1) and the second air cavity (40-2) and the inner wall of the hollow cavity of the main rod valve clack (30), an air channel (30-5) communicated with the first air cavity (40-1) is formed, and a sealing cut-off part b (20-3) for sealing and blocking the air inlet end of the air channel (30-5) in the cut-off state is also arranged on the needle rod valve clack (20); the valve body (40) is also provided with an air pipe joint (30-3) and an air cylinder pipe internal thread joint (10), the air pipe joint (30-3) is communicated with the first air cavity (40-1), and the air cylinder pipe internal thread joint (10) is communicated with the second air cavity (40-2) and the air inlet end (30-9) of the air channel (30-5) and is movably connected with the main rod valve clack (30) and the needle rod valve clack (20); the gas cylinder tube internal thread joint (10) is an external thread joint and is provided with a guide hole (10-1) coaxial with a needle bar valve clack (20), one end of the needle bar valve clack (20) provided with a sealing stop part b (20-3) is movably inserted into the guide hole (10-1), and an air inlet hole (10-2) communicated with an air inlet end (30-9) of a second air cavity (40-2) and an air channel (30-5) is arranged on the periphery of the guide hole (10-1).
2. The liquefied gas cylinder composite double self-closing valve according to claim 1, wherein: the end part of the main rod valve clack (30) positioned in the second air cavity (40-2) is provided with a protective sleeve (30-2), the protective sleeve (30-2) is movably sleeved on the gas cylinder pipe internal threaded joint (10), the protective sleeve (30-2) is internally provided with a main rod valve clack spring (30-1), and two ends of the main rod valve clack spring (30-1) are respectively propped against the main rod valve clack (30) and the gas cylinder pipe internal threaded joint (10).
3. The liquefied gas cylinder composite double self-shutoff valve as claimed in claim 2, wherein: the needle bar valve clack (20) is connected with the reverse end of the gas cylinder pipe internal thread joint (10) and sleeved with a needle bar valve clack spring (20-1), and two ends of the needle bar valve clack spring (20-1) are respectively propped against the needle bar valve clack (20) and the main rod valve clack (30).
4. A composite double self-closing valve for a liquefied gas cylinder as claimed in claim 3, wherein: the end face of one end of the main rod valve clack (30) penetrating out of the valve body (40) is provided with a spring cavity (30-6) which is connected with the hollow cavity and is coaxial with the hollow cavity, one end of the needle rod valve clack (20) extends out of the spring cavity (30-6) and is provided with an end nut (20-2), the needle rod valve clack spring (20-1) is sleeved on the needle rod valve clack (20) and is positioned in the spring cavity (30-6), and two ends of the needle rod valve clack spring are respectively propped against the bottom surfaces of the end nut (20-2) and the spring cavity (30-6).
5. The liquefied gas cylinder composite double self-closing valve according to claim 1 or 2 or 3 or 4, wherein: the main rod valve clack (30) penetrates out of the valve body (40) and is provided with a sealing ring a (30-7) tightly connected with the valve body (40), and any position outside an air passage (30-5) formed between the needle rod valve clack (20) and the inner wall of the hollow cavity of the main rod valve clack (30) is provided with a sealing ring b (20-4) tightly connected with the inner wall of the hollow cavity.
6. The liquefied gas cylinder composite double self-closing valve according to claim 1 or 2 or 3 or 4, wherein: an electronic tag (60) for storing the electronic identity of the liquefied gas cylinder, filling and recording by using the liquefied gas is arranged in the valve body (40).
7. The liquefied gas cylinder composite double self-closing valve according to claim 1 or 2 or 3 or 4, wherein: the composite double-self-stop valve for the liquefied gas cylinder is a manual composite double-self-stop valve for the liquefied gas cylinder and further comprises a hand wheel cock (90), wherein the hand wheel cock (90) is arranged on the valve body (40), and an inner diameter cylinder (90-1) of the hand wheel cock is in driving connection with the composite stop valve clack.
8. The liquefied gas cylinder composite double self-closing valve according to claim 1 or 2 or 3 or 4, wherein: the composite double-self-stop valve for the liquefied gas cylinder is a composite double-self-stop valve for the liquefied gas cylinder of the Internet of things type and further comprises a controller arranged on the valve body (40), wherein the controller comprises a body (80), a valve clack driver arranged in the body (80) and a circuit board (80-8), the valve clack driver is in conductive connection with the circuit board (80-8), and a driving rod of the valve clack driver is in driving connection with the composite stop valve clack.
9. The liquefied gas cylinder composite double self-closing valve as claimed in claim 8, wherein: the valve clack driver is an electromagnet driver and comprises an electromagnetic yoke (80-1), an electromagnetic coil (80-4), an armature push rod (80-5) and an armature (80-6), wherein the electromagnetic yoke (80-1) is fixedly arranged on a body (80), the armature (80-6) is movably arranged on the electromagnetic yoke (80-1) along the axial direction of the composite stop valve clack, one end of the armature push rod (80-5) is fixedly arranged on the armature (80-6), the other end of the armature push rod passes through the electromagnetic yoke (80-1) and is in driving connection with the composite stop valve clack, and the axial centers of the armature push rod (80-5) and the composite stop valve clack are the same; the electromagnetic coil (80-4) is arranged on the electromagnetic yoke (80-1), is positioned on two sides of the armature push rod (80-5), and is in conductive connection with the circuit board (80-8).
10. The liquefied gas cylinder composite double self-closing valve as claimed in claim 9, wherein: the controller is provided with an electronic tag reading and writing device (80-2), the electronic tag reading and writing device (80-2) is connected with the circuit board (80-8) in a conducting mode, and an electronic tag (60) matched with the electronic tag reading and writing device (80-2) is arranged in the valve body (40).
11. The control system of the compound double-self-stop valve of the liquefied gas cylinder of the internet of things type is characterized by comprising a timing control and gas leakage alarm network bridge (100) installed on each liquefied gas cylinder user, a remote management service platform and the compound double-self-stop valve of the liquefied gas cylinder installed on the liquefied gas cylinder, wherein a controller of the compound double-self-stop valve of the liquefied gas cylinder is in conductive connection with the timing control and gas leakage alarm network bridge (100), and the timing control and gas leakage alarm network bridge (100) is in communication connection with the remote management service platform through a global satellite positioning system and a wireless communication network.
12. The control system of the compound double self-shutoff valve of the internet of things type liquefied gas cylinder according to claim 11, wherein: the controller of the liquefied gas cylinder composite double-self-cut-off valve is connected with a timing control and gas leakage alarm network bridge (100) in a conducting mode through a DSPL-Bus communication Bus, and the timing control and gas leakage alarm network bridge (100) is connected with a remote management service platform in a communication mode through a Beidou satellite GPS positioning system to determine the geographic position of a user using the liquefied gas cylinder and a mobile wireless communication base station through NB-IoT/eMTC/GPRS/GSM wireless frequency spectrum.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810152111.2A CN108266538B (en) | 2018-02-14 | 2018-02-14 | Composite double-self-stop valve of liquefied gas cylinder and control system of Internet of things |
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| CN201810152111.2A CN108266538B (en) | 2018-02-14 | 2018-02-14 | Composite double-self-stop valve of liquefied gas cylinder and control system of Internet of things |
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| CN108266538B true CN108266538B (en) | 2024-02-09 |
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| CN201810152111.2A Active CN108266538B (en) | 2018-02-14 | 2018-02-14 | Composite double-self-stop valve of liquefied gas cylinder and control system of Internet of things |
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| CN110410512B (en) * | 2019-07-25 | 2021-01-15 | 江苏圣泰阀门有限公司 | Stop check valve |
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