CN110488719A - Valve Control management system and method are closed in combustion gas - Google Patents
Valve Control management system and method are closed in combustion gas Download PDFInfo
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- CN110488719A CN110488719A CN201910837759.8A CN201910837759A CN110488719A CN 110488719 A CN110488719 A CN 110488719A CN 201910837759 A CN201910837759 A CN 201910837759A CN 110488719 A CN110488719 A CN 110488719A
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- 239000000567 combustion gas Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title abstract description 6
- 239000007789 gas Substances 0.000 claims abstract description 198
- 238000001514 detection method Methods 0.000 claims abstract description 93
- 239000003034 coal gas Substances 0.000 claims abstract description 73
- 238000007726 management method Methods 0.000 claims description 133
- 238000004891 communication Methods 0.000 claims description 73
- 239000002737 fuel gas Substances 0.000 claims description 36
- 230000002093 peripheral effect Effects 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 230000002045 lasting effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 22
- 239000013078 crystal Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 235000015429 Mirabilis expansa Nutrition 0.000 description 2
- 244000294411 Mirabilis expansa Species 0.000 description 2
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Feeding And Controlling Fuel (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The present invention provides a kind of combustion gas and closes valve Control management system and method, the system comprises: N number of point of valve disconnecting device each divides valve disconnecting device to be set on corresponding indoor lateral；N number of coal gas detection control device, N number of coal gas detection control device is connected with N number of point of valve disconnecting device one-to-one correspondence, each coal gas detection control device is used to detect corresponding indoor combustable gas concentration, and controls corresponding point of valve disconnecting device when combustable gas concentration is more than threshold value and execute the combustion gas for closing valve events to cut off lateral；Main valve disconnecting device, main valve disconnecting device are set on outdoor total pipeline；Civil gas management device, civil gas management device is communicatively coupled with each coal gas detection control device and main valve disconnecting device, civil gas management device executes the combustion gas for closing valve events to cut off total pipeline for receiving the combustable gas concentration that each coal gas detection control device detects, and for sending main valve cutting instruction to main valve disconnecting device to control main valve disconnecting device.
Description
Technical field
The present invention relates to gas safe administrative skill fields, and in particular to valve Control management system and one kind are closed in a kind of combustion gas
Combustion gas closes valve and controls management method.
Background technique
Gas safe can not be ignored, fuel gas alarm alarm scheme of valve-shut off comparative maturity currently on the market, but combustion mostly
Gas alarm scheme of valve-shut off does not only have individually for indoor branching valve when gas leakage occurs for indoor public standpipe
The cutting gas source measure of effect, therefore will lead to combustion gas and persistently leak, threaten the safety of life and property of gas user.
Summary of the invention
The present invention closes valve Control management system and method, Neng Goushi in order to solve the above technical problems, providing a kind of combustion gas
The management and two-stage shutdown protection of existing gas leakage, substantially increase with gas safety.
The technical solution adopted by the invention is as follows:
A kind of combustion gas pass valve Control management system, comprising: N number of point of valve disconnecting device, it is each described that valve disconnecting device is divided to set
It is placed on corresponding indoor lateral, wherein N is positive integer；N number of coal gas detection control device, N number of coal gas detection control
Device processed is connected with N number of point of valve disconnecting device one-to-one correspondence, and each coal gas detection control device is corresponding for detecting
Indoor combustable gas concentration, and control corresponding point of valve disconnecting device when the combustable gas concentration is more than threshold value and execute pass
Valve events are to cut off the combustion gas of the lateral；Main valve disconnecting device, the main valve disconnecting device are set to outdoor total pipeline
On；Civil gas management device, the civil gas management device and each coal gas detection control device and the main valve disconnecting device
Be communicatively coupled, the civil gas management device for receive each coal gas detection control device detect it is described flammable
Gas concentration, and pass is executed for sending main valve cutting instruction to the main valve disconnecting device to control the main valve disconnecting device
Valve events are to cut off the combustion gas of the total pipeline.
Valve Control management system is closed in the combustion gas further include: civil gas management platform, the civil gas management platform with it is described
Civil gas management device is communicatively coupled, and the civil gas management platform is used to receive the combustible gas that the civil gas management device is sent
The fuel gas shutoff situation of bulk concentration and lateral, total pipeline, and cut for sending the main valve to the civil gas management device
Severed finger enables.
The civil gas management device is more than in the combustable gas concentration that one or more coal gas detection control devices detect
Threshold value simultaneously controls after corresponding point of valve disconnecting device execute and close valve events, if one or more coal gas detection control device inspection
The combustable gas concentration measured persistently increases within a preset time, then generates the main valve cutting instruction.
The civil gas management platform and each coal gas detection control device, the main valve disconnecting device carry out communication link
Connect, the civil gas management platform be used to receive the combustable gas concentration that each coal gas detection control device detects and
The fuel gas shutoff situation of lateral, and be more than in the combustable gas concentration that one or more coal gas detection control devices detect
Threshold value simultaneously controls after corresponding point of valve disconnecting device execute and close valve events, if one or more coal gas detection control device inspection
The combustable gas concentration measured persistently increases within a preset time, then generates main valve cutting instruction, and the main valve is cut off
Instruction is sent to the main valve disconnecting device to control the main valve disconnecting device and execute pass valve events.
Valve Control management system is closed in the combustion gas further include: terminal device, the terminal device and the civil gas management
Platform is communicatively coupled, and the terminal device is used for by accessing the civil gas management platform to obtain N number of combustion gas inspection
Survey the fuel gas shutoff situation of combustable gas concentration and lateral, total pipeline that control device detects, and to the fuel gas conduit
Platform sends the main valve cutting instruction.
The coal gas detection control device is also used to issue alarm when the combustable gas concentration is more than threshold value.
The coal gas detection control device include the first power module, the first central processing unit, the first wireless communication module,
Gas sensor, peripheral hardware drive module, divides valve drive signal output interface and alarm module at signal conversion module, wherein described
Gas sensor is for detecting combustable gas concentration data；The signal conversion module is connected with the gas sensor, described
Signal conversion module is used to the combustable gas concentration data being converted to the identifiable form of the first central processing unit；Institute
State the first central processing unit respectively with the signal conversion module, first wireless communication module and the peripheral hardware drive module
It is connected, first central processing unit is used to divide valve cutting instruction and alarm according to the combustable gas concentration data generation after conversion
Instruction, to input the peripheral hardware drive module, and controls first wireless communication module and the civil gas management device or institute
Civil gas management platform is stated to be communicatively coupled；The peripheral hardware drive module divides valve drive signal output interface and institute with described respectively
It states alarm module to be connected, to divide valve cutting instruction and the alarm command described in corresponding output；The first power module difference
With first central processing unit, the gas sensor, first wireless communication module and the peripheral hardware drive module phase
Even to be powered.
The civil gas management device includes second power supply module, the second central processing unit, the second wireless communication module and public affairs
Network Communication module, wherein second central processing unit communicates mould with second wireless communication module and the public network respectively
Block is connected, second central processing unit for control second wireless communication module and the coal gas detection control device into
Row communication connection, and be communicatively coupled for controlling the public network communication module with the civil gas management platform；Described second
Power module be connected respectively with second central processing unit, second wireless communication module and the public network communication module with
It is powered.
Described point of valve disconnecting device includes dividing valve drive signal input interface, the first valve drive module and the first valve machine
Tool structure, wherein the first valve drive module divides valve drive signal input interface and first valve with described respectively
Mechanical structure is connected, and the first valve drive module, which is used to divide described in described in the reception of valve drive signal input interface, divides valve
Cutting instruction, and divide valve cutting instruction to control the first valve mechanical structure movement to cut off the lateral according to described
Combustion gas, the main valve disconnecting device includes third power module, third central processing unit, third wireless communication module, second
Valve drive module, signal detection module and the second valve mechanical structure, wherein the signal detection module and second valve
Door mechanical structure is connected, and it is total to obtain that the signal detection module is used to detect the switch conditions of the second valve mechanical structure
The fuel gas shutoff situation of pipeline；The third central processing unit respectively with the third wireless communication module, second valve
Drive module is connected with the signal detection module, and the third central processing unit is for controlling the third wireless communication module
It is communicatively coupled with the civil gas management device or the civil gas management platform, and the main valve is cut off described in instruction input
Second valve drive module, and receive the fuel gas shutoff situation of the total pipeline；The second valve mechanical structure with it is described
Second valve drive module is connected, and the second valve drive module cuts off instruction according to the main valve and controls second valve
Mechanical structure is acted to cut off the combustion gas of the total pipeline；The third power module respectively with the third central processing unit,
The third wireless communication module, the second valve drive module are connected with the signal detection module to be powered.
A kind of combustion gas pass valve controls management method, comprising: detects multiple indoor combustable gas concentrations respectively, and any
Indoor combustable gas concentration controls the fuel gas shutoff of the indoor lateral when being more than threshold value；It is received by civil gas management device every
The combustable gas concentration that a coal gas detection control device detects, and instruction control total pipeline is cut off according to main valve
Fuel gas shutoff.
Beneficial effects of the present invention:
The present invention detects corresponding indoor combustable gas concentration by coal gas detection control device, and in combustable gas concentration
Corresponding point of valve disconnecting device is controlled when more than threshold value and executes the combustion gas for closing valve events to cut off lateral, passes through civil gas management
Device receives combustable gas concentration, and sends main valve cutting instruction to main valve disconnecting device and execute pass to control main valve disconnecting device
Valve events are substantially increased with the combustion gas for cutting off total pipeline thereby, it is possible to realize the management of gas leakage and two-stage shutdown protection
With gas safety.
Detailed description of the invention
Fig. 1 is that the block diagram of valve Control management system is closed in the combustion gas of the embodiment of the present invention；
Fig. 2 is that the schematic view of the mounting position of valve Control management system is closed in the combustion gas of one embodiment of the invention；
Fig. 3 is that the block diagram of valve Control management system is closed in the combustion gas of one embodiment of the invention；
Fig. 4 is that the block diagram of valve Control management system is closed in the combustion gas of another embodiment of the present invention；
Fig. 5 is the block diagram of the coal gas detection control device of one embodiment of the invention；
Fig. 6 is the block diagram of the civil gas management device of one embodiment of the invention；
Fig. 7 is the block diagram for dividing valve disconnecting device of one embodiment of the invention；
Fig. 8 is the block diagram of the main valve disconnecting device of one embodiment of the invention；
Fig. 9 is the circuit diagram of the first central processing unit of a specific embodiment of the invention；
Figure 10 is the circuit diagram of the gas sensor of a specific embodiment of the invention；
Figure 11 is the circuit diagram of the first wireless communication module of a specific embodiment of the invention；
Figure 12 is the circuit diagram of the peripheral hardware drive module of a specific embodiment of the invention；
Figure 13 is the circuit diagram of the alarm module of a specific embodiment of the invention；
Figure 14 is the circuit diagram of the first power module of a specific embodiment of the invention；
Figure 15 is the circuit diagram of the second central processing unit of a specific embodiment of the invention；
Figure 16 is the circuit diagram of the second wireless communication module of a specific embodiment of the invention；
Figure 17 is the circuit diagram of the public network communication module of a specific embodiment of the invention；
Figure 18 is the circuit diagram of the second power supply module of a specific embodiment of the invention；
Figure 19 is the circuit diagram of the third central processing unit of a specific embodiment of the invention；
Figure 20 is the circuit diagram of the signal detection module of a specific embodiment of the invention；
Figure 21 is the circuit diagram of the second valve drive module of a specific embodiment of the invention；
Figure 22 is the circuit diagram of the third wireless communication module of a specific embodiment of the invention；
Figure 23 is the circuit diagram of the third power module of a specific embodiment of the invention；
Figure 24 is that the flow chart that valve controls management method is closed in the combustion gas of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the embodiment of the present invention combustion gas close valve Control management system include N number of point of valve disconnecting device 10, it is N number of
Coal gas detection control device 20, main valve disconnecting device 30 and civil gas management device 40.Wherein, N is positive integer.Each valve is divided to cut off
Device 10 is set on corresponding indoor lateral；N number of coal gas detection control device 20 and N number of point of valve disconnecting device 10 are one by one
Corresponding to be connected, each coal gas detection control device 20 is used to detect corresponding indoor combustable gas concentration, and dense in fuel gas
Degree controls corresponding point of valve disconnecting device 10 and executes the combustion gas for closing valve events to cut off lateral when being more than threshold value；Main valve cutting
Device 30 is set on outdoor total pipeline；Civil gas management device 40 and each coal gas detection control device 20 and main valve disconnecting device
30 are communicatively coupled, and civil gas management device 40 is dense for receiving the fuel gas that each coal gas detection control device 20 detects
Degree, and be used to send main valve cutting instruction to main valve disconnecting device 30 and execute pass valve events to control main valve disconnecting device 30 to cut
The combustion gas of disconnected total pipeline.
In one embodiment of the invention, civil gas management device 40 can be in one or more coal gas detection control devices 20
The combustable gas concentration detected is more than threshold value and controls after corresponding point of valve disconnecting device 10 execute and close valve events, if this one
The combustable gas concentration that a or multiple coal gas detection control devices 20 detect persistently increases within a preset time, then generates main valve
Cutting instruction.
In one particular embodiment of the present invention, valve disconnecting device 10, coal gas detection control device 20 and main valve is divided to cut
The installation site of disconnected device 30 under construction divides valve as shown in Fig. 2, the indoor lateral installation of each layer of building can be corresponded to
Disconnecting device 10 and coal gas detection control device 20, and building can be corresponded to and externally descend total pipeline that main valve disconnecting device is installed
30。
Further, as shown in figure 3, valve Control management system is closed in the combustion gas of the embodiment of the present invention may also include civil gas management
Platform 50.Civil gas management platform 50 is communicatively coupled with civil gas management device 40, and civil gas management platform 50 is for receiving combustion gas
The fuel gas shutoff situation of combustable gas concentration and lateral, total pipeline that managing device 40 is sent, and be used for civil gas management
Device 40 sends main valve cutting instruction.
In another embodiment of the present invention, as shown in figure 4, civil gas management platform 50 can also be examined directly with each combustion gas
Survey control device 20, main valve disconnecting device 30 is communicatively coupled.Civil gas management platform 50 can receive each coal gas detection control
The fuel gas shutoff situation of combustable gas concentration and lateral that device 20 detects, and controlled in one or more coal gas detections
After the combustable gas concentration that device 20 detects is more than threshold value and controls the corresponding point of execution of valve disconnecting device 10 pass valve events, such as
The combustable gas concentration that the fruit one or more coal gas detection control device 20 detects persistently increases within a preset time, then gives birth to
It cuts off and instructs at main valve, and main valve cutting instruction is sent to main valve disconnecting device 30 and is executed with controlling main valve disconnecting device 30
Close valve events.
Further, valve Control management system is closed in the combustion gas of the embodiment of the present invention may also include terminal device, terminal device
It is communicatively coupled with civil gas management platform 50, terminal device can be obtained all combustion gas by access civil gas management platform 50 and be examined
The fuel gas shutoff situation of combustable gas concentration and lateral, total pipeline that control device 20 detects is surveyed, and can be to fuel gas conduit
Platform 50 sends main valve cutting instruction.
That is, the main valve cutting instruction of the embodiment of the present invention can be civil gas management device 40 itself according to combustible gas
What bulk concentration automatically generated, it is also possible to received from civil gas management platform 50.Wherein, received from the total of civil gas management platform 50
Valve cutting instruction can be what civil gas management platform 50 was automatically generated according to combustable gas concentration, is also possible to reception self terminal and sets
Standby.
In addition, each coal gas detection control device 20 of the embodiment of the present invention can also be super in the combustable gas concentration detected
Alarm is issued when crossing threshold value.
In one particular embodiment of the present invention, dividing valve disconnecting device 10 may include electromagnetic shut-off valve, valve machinery
Hand and the combination of general gas ball valve, or be set in the intelligent gas meter with cutting function.Coal gas detection control device 20 with
It can be used wired connection type between point valve disconnecting device 10, coal gas detection control device 20 is exported to dividing valve disconnecting device 10
Signal can be direct current 12V, direct current 9V signal or passive switch signal.
In one particular embodiment of the present invention, civil gas management device 40 is cut with coal gas detection control device 20, main valve
The communication mode of wireless communication, such as 433MHz, LoRa (Long Range Radio, long distance can be used between disconnected device 30
From wireless communication) or 2.4G etc.；The communication party of wireless communication can be used between civil gas management platform 50 and civil gas management device 40
Formula, such as GPRS, 3G, 4G, 5G or NB-IOT (Narrow Band Internet of Things, narrowband Internet of Things) etc.；In
In another specific embodiment of the invention, civil gas management platform 50 and coal gas detection control device 20, main valve disconnecting device 30
Between direct communication the communication mode of wireless communication, such as GPRS, 3G, 4G, 5G or NB-IOT etc. also can be used.
In one particular embodiment of the present invention, terminal device can be mobile phone, tablet computer, PC machine etc..
The civil gas management platform 50 of the embodiment of the present invention be used as remote management platform, user can by terminal device to its into
Row access, can carry out the inquiry of coal gas detection alarm condition and the cutting management of valve on the terminal device.
In one embodiment of the invention, as shown in figure 5, coal gas detection control device 20 may include the first power module
21, the first central processing unit 22, the first wireless communication module 23, gas sensor 24, signal conversion module 25, peripheral hardware drive mould
Block 26 divides valve drive signal output interface 27 and alarm module 28.Wherein, gas sensor 24 is for detecting combustable gas concentration
Data；Signal conversion module 25 is connected with gas sensor 24, and signal conversion module 25 is used to turn combustable gas concentration data
It is changed to the identifiable form of the first central processing unit 22；First central processing unit 22 respectively with signal conversion module 25, the first nothing
Line communication module 23 is connected with peripheral hardware drive module 26, and the first central processing unit 22 is used for according to the combustable gas concentration after conversion
Data generation divides valve cutting instruction and alarm command, to correspond to peripheral hardware drive module 26, and controls the first wireless communication module 23
It is communicatively coupled with civil gas management device 40 or civil gas management platform 50；Peripheral hardware drive module 26 respectively with divide valve drive signal
Output interface 27 is connected with alarm module 28, divides valve cutting instruction and alarm command with corresponding output；First power module 21 divides
Be not connected with the first central processing unit 22, gas sensor 24, the first wireless communication module 23 and peripheral hardware drive module 26 with into
Row power supply.
As shown in fig. 6, civil gas management device 40 may include second power supply module 41, the second central processing unit 42, the second nothing
Line communication module 43 and public network communication module 44.Wherein, the second central processing unit 42 respectively with the second wireless communication module 43 and
Public network communication module 44 is connected, and the second central processing unit 42 is filled for controlling the second wireless communication module 43 with coal gas detection control
It sets 20 to be communicatively coupled, and is communicatively coupled for controlling public network communication module 44 with civil gas management platform 50；Second electricity
Source module 41 is connected respectively with the second central processing unit 42, the second wireless communication module 43 and public network communication module 44 to be supplied
Electricity.
As shown in fig. 7, valve disconnecting device 10 is divided to may include a point valve drive signal input interface 11, the first valve drive module
12 and the first valve mechanical structure 13.Wherein, the first valve drive module 12 respectively with divide valve drive signal input interface 11 and
First valve mechanical structure 13 is connected, and the first valve drive module 12 is used to divide by dividing valve drive signal input interface 11 to receive
Valve cutting instruction, and the movement of the first valve mechanical structure 13 is controlled according to dividing valve to cut off instruction to cut off the combustion gas of lateral.
As shown in figure 8, main valve disconnecting device 30 may include third power module 31, third central processing unit 32, third without
Line communication module 33, the second valve drive module 34, signal detection module 35 and the second valve mechanical structure 36.Wherein, signal
Detection module 35 is connected with the second valve mechanical structure 36, and signal detection module 35 is for detecting the second valve mechanical structure 36
Switch conditions are to obtain the fuel gas shutoff situation of total pipeline；Third central processing unit 32 respectively with third wireless communication module 33,
Second valve drive module 34 is connected with signal detection module 35, and third central processing unit 32 is for controlling third radio communication mold
Block 33 is communicatively coupled with civil gas management device 40 or civil gas management platform 50, and main valve is cut off the second valve of instruction input
Drive module 34, and receive the fuel gas shutoff situation of total pipeline；Second valve mechanical structure 36 and the second valve drive module
34 are connected, and the second valve drive module 34 cuts off instruction control the second valve mechanical structure 36 movement according to main valve to cut off general pipeline
The combustion gas in road；Third power module 31 drives with third central processing unit 32, third wireless communication module 33, the second valve respectively
Module 34 is connected with signal detection module 35 to be powered.
In the coal gas detection control device 20 of a specific embodiment of the invention, as shown in figure 9, the first central processing
Device 22 may include the control chip of model PIC16F1519, and peripheral circuit includes crystal oscillating circuit, key circuit and connector
Deng；As shown in Figure 10, gas sensor 24 and signal conversion module 25 may include sensor interface and multiple operational amplifiers, can
Sensor signal is amplified 200 times；As shown in figure 11, the first wireless communication module 23 may include RFM communication chip；Such as Figure 12 institute
Show, peripheral hardware drive module 26 may include relay circuit；As shown in figure 13, alarm module 28 may include signal lamp and buzzer,
So as to be alarmed by signal lamp flashing and buzzer rings；As shown in figure 14, the first power module 21 may include model
For the power supply chip of LM2596, the voltage stabilizing chip of the three-terminal regulator chip of model L7912 and model REG1117, can incite somebody to action
AC power source is converted to the DC power supply of 12V and 3.3V, uses electric device to supply in coal gas detection control device 20.
In the civil gas management device 40 of a specific embodiment of the invention, as shown in figure 15, the second central processing unit
42 may include the control chip of model PIC16F1519, and peripheral circuit includes crystal oscillating circuit, key circuit, indicator light circuit
With connector etc.；As shown in figure 16, the second wireless communication module 43 may include RFM communication chip；As shown in figure 17, public network communicates
Module 44 may include CT900 communication chip；As shown in figure 18, second power supply module 41 may include the power supply core of model LM2596
Input power can be converted to the DC power supply of 4.2V, to supply civil gas management by the voltage stabilizing chip of piece and model REG1117
Electric device is used in device 40.
In the main valve disconnecting device 30 of a specific embodiment of the invention, as shown in figure 19, third central processing unit
32 may include the control chip of model PIC16F1519, and peripheral circuit includes crystal oscillating circuit, key circuit, indicator light circuit
With connector etc.；As shown in figure 20, signal detection module 35 may include detection interface circuit；As shown in figure 21, the second valve drives
Dynamic model block 34 may include relay circuit；As shown in figure 22, third wireless communication module 33 may include RFM communication chip；Such as figure
Shown in 23, third power module 31 may include the power supply chip of model LM2596 and the voltage stabilizing chip of model REG1117, energy
It is enough that input power is converted into DC power supply, electric device is used to supply in main valve disconnecting device 30.
It should be noted that identical pin designations indicate mutual connection relationship, such as combustion gas in foregoing circuit figure
In detection control apparatus 20, the RC5/SDO pin of the PIC16F1519 marked as MISO is connected with MISO (I) pin of RFM, In
This is not described in detail one by one.
Valve Control management system is closed in combustion gas according to an embodiment of the present invention, detects corresponding family by coal gas detection control device
Interior combustable gas concentration, and control corresponding point of valve disconnecting device when combustable gas concentration is more than threshold value and execute pass valve events
To cut off the combustion gas of lateral, combustable gas concentration is received by civil gas management device, and send always to main valve disconnecting device
Valve cutting instruction executes the combustion gas for closing valve events to cut off total pipeline to control main valve disconnecting device, and thereby, it is possible to realize combustion gas
The management of leakage and two-stage shutdown protection, substantially increase with gas safety.
Valve Control management system is closed in the combustion gas of corresponding above-described embodiment, and the present invention also proposes that valve control management is closed in a kind of combustion gas
Method.
As shown in figure 24, the embodiment of the present invention combustion gas close valve control management method the following steps are included:
S1 detects multiple indoor combustable gas concentrations respectively, and when any indoor combustable gas concentration is more than threshold value
Control the fuel gas shutoff of the indoor lateral.
In one embodiment of the invention, a coal gas detection control can be correspondingly arranged on each indoor lateral
Device and a point of valve disconnecting device, coal gas detection control device can be executed by corresponding point of valve disconnecting device of control and close valve actuation
Make to cut off the combustion gas of lateral.
S2 receives the combustable gas concentration that each coal gas detection control device detects, and root by civil gas management device
The fuel gas shutoff of instruction control total pipeline is cut off according to main valve.
In one embodiment of the invention, main valve disconnecting device, civil gas management device can be set on total pipeline outdoors
Main valve disconnecting device can be controlled by sending main valve cutting instruction to main valve disconnecting device execute pass valve events to cut off general pipeline
The combustion gas in road.
In one embodiment of the invention, civil gas management device can be detected in one or more coal gas detection control devices
To combustable gas concentration be more than threshold value and control after corresponding point of valve disconnecting device execute and close valve events, if this or more
The combustable gas concentration that a coal gas detection control device detects persistently increases within a preset time, then generates main valve cutting and refer to
It enables.
Further, civil gas management device can also be by the fuel gas shutoff feelings of combustable gas concentration and lateral, total pipeline
Condition is sent to civil gas management platform, and civil gas management platform can send main valve cutting instruction to civil gas management device.
In another embodiment of the present invention, civil gas management platform can receive each coal gas detection control device and detect
Combustable gas concentration and lateral fuel gas shutoff situation, and detect in one or more coal gas detection control devices
After combustable gas concentration is more than threshold value and controls corresponding point of valve disconnecting device execution pass valve events, if the one or more is fired
The combustable gas concentration that gas detection control apparatus detects persistently increases within a preset time, then generates main valve cutting instruction, with
And main valve cutting instruction is sent to main valve disconnecting device to control main valve disconnecting device and execute pass valve events.
Further, also civil gas management platform can be accessed by terminal device to examine to obtain all coal gas detection control devices
The fuel gas shutoff situation of the combustable gas concentration and lateral, total pipeline that measure, terminal device can also be to civil gas management platforms
Send main valve cutting instruction.
That is, the main valve cutting instruction of the embodiment of the present invention can be civil gas management device itself according to fuel gas
What concentration automatically generated, it is also possible to received from civil gas management platform.Wherein, the main valve cutting received from civil gas management platform
Instruction can be what civil gas management platform was automatically generated according to combustable gas concentration, be also possible to received from terminal device.
In addition, each coal gas detection control device of the embodiment of the present invention can also be more than in the combustable gas concentration detected
Alarm is issued when threshold value.
In one particular embodiment of the present invention, civil gas management device and coal gas detection control device, main valve cutting fill
The communication mode of wireless communication, such as 433MHz, LoRa or 2.4G etc. can be used between setting；Civil gas management platform and fuel gas conduit
The communication mode of wireless communication, such as GPRS, 3G, 4G, 5G or NB-IOT etc. can be used between reason device；Of the invention another
In a specific embodiment, the direct communication between civil gas management platform and coal gas detection control device, main valve disconnecting device is also equal
The communication mode of wireless communication, such as GPRS, 3G, 4G, 5G or NB-IOT etc. can be used.
In one particular embodiment of the present invention, terminal device can be mobile phone, tablet computer, PC machine etc..
The civil gas management platform of the embodiment of the present invention can carry out it by terminal device as remote management platform, user
Access, can carry out the inquiry of coal gas detection alarm condition and the cutting management of valve on the terminal device.
Combustion gas according to an embodiment of the present invention closes valve and controls management method, dense by detecting each indoor fuel gas
It spends, and controls the fuel gas shutoff of respective branch pipeline when combustable gas concentration is more than threshold value, received by civil gas management device
Combustable gas concentration, and the fuel gas shutoff that instruction controls total pipeline is cut off according to main valve, thereby, it is possible to realize the pipe of gas leakage
Reason and two-stage shutdown protection, substantially increase with gas safety.
In the description of the present invention, term " first ", " second " are used for description purposes only, and should not be understood as instruction or dark
Show relative importance or implicitly indicates the quantity of indicated technical characteristic.The feature of " first ", " second " is defined as a result,
It can explicitly or implicitly include one or more of the features.The meaning of " plurality " is two or more, unless
Separately there is clearly specific restriction.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. valve Control management system is closed in a kind of combustion gas characterized by comprising
N number of point of valve disconnecting device, it is each described that valve disconnecting device is divided to be set on corresponding indoor lateral, wherein N is positive
Integer；
N number of coal gas detection control device, N number of coal gas detection control device and the N number of point of valve disconnecting device correspond
It is connected, each coal gas detection control device is used to detect corresponding indoor combustable gas concentration, and in the fuel gas
Concentration controls corresponding point of valve disconnecting device and executes the combustion gas for closing valve events to cut off the lateral when being more than threshold value；
Main valve disconnecting device, the main valve disconnecting device are set on outdoor total pipeline；
Civil gas management device, the civil gas management device and each coal gas detection control device and the main valve disconnecting device
Be communicatively coupled, the civil gas management device for receive each coal gas detection control device detect it is described flammable
Gas concentration, and pass is executed for sending main valve cutting instruction to the main valve disconnecting device to control the main valve disconnecting device
Valve events are to cut off the combustion gas of the total pipeline.
2. valve Control management system is closed in combustion gas according to claim 1, which is characterized in that further include:
Civil gas management platform, the civil gas management platform are communicatively coupled with the civil gas management device, the civil gas management
Platform is used to receive the fuel gas shutoff feelings of combustable gas concentration and lateral, total pipeline that the civil gas management device is sent
Condition, and for sending the main valve cutting instruction to the civil gas management device.
3. valve Control management system is closed in combustion gas according to claim 1, which is characterized in that the civil gas management device is one
The combustable gas concentration that a or multiple coal gas detection control devices detect is more than threshold value and controls corresponding point of valve disconnecting device
It executes after closing valve events, if the combustable gas concentration that the one or more coal gas detection control device detects is in preset time
Interior lasting raising then generates the main valve cutting instruction.
4. valve Control management system is closed in combustion gas according to claim 2, which is characterized in that the civil gas management platform and every
A coal gas detection control device, the main valve disconnecting device are communicatively coupled, and the civil gas management platform is for receiving
The fuel gas shutoff situation of the combustable gas concentration and lateral that each coal gas detection control device detects, and
The combustable gas concentration that one or more coal gas detection control devices detect is more than threshold value and controls corresponding point of valve cutting dress
After setting execution pass valve events, if the combustable gas concentration that the one or more coal gas detection control device detects is when default
Interior lasting raising then generates main valve cutting instruction, and main valve cutting instruction is sent to the main valve disconnecting device
Pass valve events are executed to control the main valve disconnecting device.
5. valve Control management system is closed in combustion gas according to claim 2, which is characterized in that further include:
Terminal device, the terminal device are communicatively coupled with the civil gas management platform, and the terminal device is for passing through
The civil gas management platform is accessed to obtain the combustable gas concentration and branched pipe that N number of coal gas detection control device detects
The fuel gas shutoff situation in road, total pipeline, and the main valve cutting instruction is sent to the civil gas management platform.
6. valve Control management system is closed in combustion gas according to claim 4, which is characterized in that the coal gas detection control device
It is also used to issue alarm when the combustable gas concentration is more than threshold value.
7. valve Control management system is closed in combustion gas according to claim 6, which is characterized in that the coal gas detection control device
Including the first power module, the first central processing unit, the first wireless communication module, gas sensor, signal conversion module, peripheral hardware
Drive module divides valve drive signal output interface and alarm module, wherein
The gas sensor is for detecting combustable gas concentration data；
The signal conversion module is connected with the gas sensor, and the signal conversion module is used for the fuel gas is dense
Degree evidence is converted to the identifiable form of the first central processing unit；
First central processing unit drives with the signal conversion module, first wireless communication module and the peripheral hardware respectively
Dynamic model block is connected, and first central processing unit is used to divide valve cutting instruction according to the combustable gas concentration data generation after conversion
And alarm command, to input the peripheral hardware drive module, and control first wireless communication module and civil gas management dress
It sets or the civil gas management platform is communicatively coupled；
The peripheral hardware drive module divides valve drive signal output interface and the alarm module to be connected with described respectively, defeated with correspondence
It is described out to divide valve cutting instruction and the alarm command；
First power module is wirelessly communicated with first central processing unit, the gas sensor, described first respectively
Module is connected with the peripheral hardware drive module to be powered.
8. valve Control management system is closed in combustion gas according to claim 7, which is characterized in that the civil gas management device includes
Second power supply module, the second central processing unit, the second wireless communication module and public network communication module, wherein
Second central processing unit is connected with second wireless communication module and the public network communication module respectively, and described
Two central processing units are communicatively coupled for controlling second wireless communication module with the coal gas detection control device, and
It is communicatively coupled for controlling the public network communication module with the civil gas management platform；
The second power supply module is logical with second central processing unit, second wireless communication module and the public network respectively
Believe that module is connected to be powered.
9. valve Control management system is closed in combustion gas according to claim 8, which is characterized in that described to divide the valve disconnecting device to include
Divide valve drive signal input interface, the first valve drive module and the first valve mechanical structure, wherein
The first valve drive module divides valve drive signal input interface and the first valve mechanical structure with described respectively
It is connected, the first valve drive module, which is used to divide described in, divides valve cutting to refer to described in the reception of valve drive signal input interface
It enables, and divides valve cutting instruction to control the first valve mechanical structure movement to cut off the combustion of the lateral according to described
Gas,
The main valve disconnecting device includes third power module, third central processing unit, third wireless communication module, the second valve
Drive module, signal detection module and the second valve mechanical structure, wherein
The signal detection module is connected with the second valve mechanical structure, and the signal detection module is for detecting described the
The switch conditions of two valve mechanical structures are to obtain the fuel gas shutoff situation of total pipeline；
The third central processing unit respectively with the third wireless communication module, the second valve drive module and the letter
Number detection module is connected, and the third central processing unit is filled for controlling the third wireless communication module and the civil gas management
It sets or the civil gas management platform is communicatively coupled, and the main valve is cut off into the second valve described in instruction input and drives mould
Block, and receive the fuel gas shutoff situation of the total pipeline；
The second valve mechanical structure is connected with the second valve drive module, and the second valve drive module is according to institute
It states main valve cutting instruction and controls the second valve mechanical structure movement to cut off the combustion gas of the total pipeline；
The third power module respectively with the third central processing unit, the third wireless communication module, second valve
Door drive module is connected with the signal detection module to be powered.
10. a kind of combustion gas closes valve and controls management method characterized by comprising
Multiple indoor combustable gas concentrations are detected respectively, and control the family when any indoor combustable gas concentration is more than threshold value
The fuel gas shutoff of interior lateral；
The combustable gas concentration that each coal gas detection control device detects, and root are received by civil gas management device
The fuel gas shutoff of instruction control total pipeline is cut off according to main valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910837759.8A CN110488719A (en) | 2019-09-05 | 2019-09-05 | Valve Control management system and method are closed in combustion gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910837759.8A CN110488719A (en) | 2019-09-05 | 2019-09-05 | Valve Control management system and method are closed in combustion gas |
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| CN110488719A true CN110488719A (en) | 2019-11-22 |
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| CN201910837759.8A Pending CN110488719A (en) | 2019-09-05 | 2019-09-05 | Valve Control management system and method are closed in combustion gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118116163A (en) * | 2024-01-23 | 2024-05-31 | 邢台燃气集团有限责任公司 | Gas alarm safety linkage control system |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001033033A (en) * | 1999-07-22 | 2001-02-09 | Tokyo Gas Co Ltd | Alarm device, capable of communicating with gas meter |
| KR20040108054A (en) * | 2003-06-16 | 2004-12-23 | 이기원 | Gas alarm device |
| JP2008282201A (en) * | 2007-05-10 | 2008-11-20 | Ricoh Elemex Corp | Gas leakage alarm system |
| JP2009064081A (en) * | 2007-09-04 | 2009-03-26 | Ricoh Elemex Corp | Gas alarm shutoff device |
| CN101629675A (en) * | 2009-08-11 | 2010-01-20 | 彭亦程 | Indoor gas leakage protecting method and indoor gas leakage protecting device |
| CN202093376U (en) * | 2011-04-26 | 2011-12-28 | 耕者有田科技（北京）有限公司 | City combustion gas monitoring alarm system |
| CN102542733A (en) * | 2010-12-21 | 2012-07-04 | 新奥科技发展有限公司 | Memory type hazardous gas alarm control system |
| CN102903210A (en) * | 2012-09-20 | 2013-01-30 | 天津市浦海新技术有限公司 | Gas safety detecting and predicting alarming system |
| CN205261240U (en) * | 2015-12-16 | 2016-05-25 | 青岛厚科信息工程有限公司 | Monitoring and early warning and exhaust management system of operation pipeline in building |
| CN107606299A (en) * | 2017-09-19 | 2018-01-19 | 无锡市云感科技股份有限公司 | Fuel gas alarm controlled in wireless closes valve system |
| CN107808499A (en) * | 2017-10-31 | 2018-03-16 | 张良 | Gas monitoring warning system |
| CN207457221U (en) * | 2017-07-22 | 2018-06-05 | 吉林省中电数通智慧城市安防科技有限公司 | A kind of wireless gas detecting early-warning device |
| CN108765886A (en) * | 2018-07-03 | 2018-11-06 | 金卡智能集团股份有限公司 | A kind of gas alarm safety interaction control system |
| CN108958096A (en) * | 2017-12-05 | 2018-12-07 | 北京市燃气集团有限责任公司 | Kitchen fuel gas security system and method for controlling security |
| CN109027376A (en) * | 2018-09-13 | 2018-12-18 | 深圳市前海三安盛科技有限公司 | A kind of safety monitoring system that combustion gas uses |
| CN109191795A (en) * | 2018-11-10 | 2019-01-11 | 温州联安物联网科技有限公司 | A kind of combustion gas gateway, gas safety detection system and gas-cooker |
| CN109869633A (en) * | 2018-12-27 | 2019-06-11 | 天津新科成套仪表有限公司 | Fuel gas supply system with safety protection function |
| CN210488266U (en) * | 2019-09-05 | 2020-05-08 | 北京市燃气集团有限责任公司 | Gas shut-off valve control management system |
-
2019
- 2019-09-05 CN CN201910837759.8A patent/CN110488719A/en active Pending
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001033033A (en) * | 1999-07-22 | 2001-02-09 | Tokyo Gas Co Ltd | Alarm device, capable of communicating with gas meter |
| KR20040108054A (en) * | 2003-06-16 | 2004-12-23 | 이기원 | Gas alarm device |
| JP2008282201A (en) * | 2007-05-10 | 2008-11-20 | Ricoh Elemex Corp | Gas leakage alarm system |
| JP2009064081A (en) * | 2007-09-04 | 2009-03-26 | Ricoh Elemex Corp | Gas alarm shutoff device |
| CN101629675A (en) * | 2009-08-11 | 2010-01-20 | 彭亦程 | Indoor gas leakage protecting method and indoor gas leakage protecting device |
| CN102542733A (en) * | 2010-12-21 | 2012-07-04 | 新奥科技发展有限公司 | Memory type hazardous gas alarm control system |
| CN202093376U (en) * | 2011-04-26 | 2011-12-28 | 耕者有田科技（北京）有限公司 | City combustion gas monitoring alarm system |
| CN102903210A (en) * | 2012-09-20 | 2013-01-30 | 天津市浦海新技术有限公司 | Gas safety detecting and predicting alarming system |
| CN205261240U (en) * | 2015-12-16 | 2016-05-25 | 青岛厚科信息工程有限公司 | Monitoring and early warning and exhaust management system of operation pipeline in building |
| CN207457221U (en) * | 2017-07-22 | 2018-06-05 | 吉林省中电数通智慧城市安防科技有限公司 | A kind of wireless gas detecting early-warning device |
| CN107606299A (en) * | 2017-09-19 | 2018-01-19 | 无锡市云感科技股份有限公司 | Fuel gas alarm controlled in wireless closes valve system |
| CN107808499A (en) * | 2017-10-31 | 2018-03-16 | 张良 | Gas monitoring warning system |
| CN108958096A (en) * | 2017-12-05 | 2018-12-07 | 北京市燃气集团有限责任公司 | Kitchen fuel gas security system and method for controlling security |
| CN108765886A (en) * | 2018-07-03 | 2018-11-06 | 金卡智能集团股份有限公司 | A kind of gas alarm safety interaction control system |
| CN109027376A (en) * | 2018-09-13 | 2018-12-18 | 深圳市前海三安盛科技有限公司 | A kind of safety monitoring system that combustion gas uses |
| CN109191795A (en) * | 2018-11-10 | 2019-01-11 | 温州联安物联网科技有限公司 | A kind of combustion gas gateway, gas safety detection system and gas-cooker |
| CN109869633A (en) * | 2018-12-27 | 2019-06-11 | 天津新科成套仪表有限公司 | Fuel gas supply system with safety protection function |
| CN210488266U (en) * | 2019-09-05 | 2020-05-08 | 北京市燃气集团有限责任公司 | Gas shut-off valve control management system |
Non-Patent Citations (1)
| Title |
|---|
| 张盟;孙杰;: "基于燃气报警控制系统的燃气泄漏安全切断技术", 中国石油和化工标准与质量, no. 12 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118116163A (en) * | 2024-01-23 | 2024-05-31 | 邢台燃气集团有限责任公司 | Gas alarm safety linkage control system |
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