CN217718823U - Combustible gas safety monitoring equipment based on refueling, gas filling and hydrogenation combined building station - Google Patents
Combustible gas safety monitoring equipment based on refueling, gas filling and hydrogenation combined building station Download PDFInfo
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- CN217718823U CN217718823U CN202221202532.XU CN202221202532U CN217718823U CN 217718823 U CN217718823 U CN 217718823U CN 202221202532 U CN202221202532 U CN 202221202532U CN 217718823 U CN217718823 U CN 217718823U
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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Abstract
The utility model discloses a combustible gas safety monitoring equipment based on refuel air entrainment hydrogenation closes and builds station aims at solving and closes to build the station to multiple fuel and need use independent combustible gas detecting system, the high wasting of resources's of consumption technical problem respectively. The utility model comprises a combustible gas concentration detector, a combustible gas alarm controller, a PLC station control unit of an oil filling and gas filling hydrogenation station and an upper computer; the combustible gas concentration detector comprises an oil gas concentration detector, a natural gas concentration detector and a hydrogen concentration detector. The safety problem and the cost problem of the multi-fuel combined station are effectively solved, and the effect of safely and energy-saving monitoring the multi-fuel combined station is realized.
Description
Technical Field
The utility model relates to a combustible gas safety monitoring technical field, concretely relates to combustible gas safety monitoring equipment based on refuel air entrainment hydrogenation closes and builds station.
Background
Hydrogen energy is regarded as the clean energy with the most development potential in the 21 st century because of its advantages of cleanness, high efficiency, safety and sustainable development. The hydrogen energy and the fuel cell industry are highly regarded by people in the related fields, and 5 ten thousand hydrogen fuel cell vehicles are expected to be applied to build 300 hydrogen stations in 2025 years, and 100 ten thousand hydrogen fuel cell vehicles are expected to be commercially applied to build 1000 hydrogen stations in 2030 years. The development of the current hydrogen energy industry is to insist on demand guidance, overall layout and construction of a hydrogenation station, and orderly promote the construction of a hydrogenation network system. The method has the advantages of saving intensive land resources and supporting the reconstruction and expansion of the hydrogen filling station by utilizing site facilities of the conventional oil filling and gas filling station according to laws and regulations. It is expected that the refueling, gas filling and hydrogenation combined station will become an important way for the construction of the hydrogenation station in the future.
A combustible gas monitoring system for a fuel depot known by the inventor (chinese patent document CN 108230627A) discloses a combustible gas monitoring system only suitable for a gas station, and adopts an independent combustible gas detection system.
However, in the process of implementing the technical solution in the embodiment of the present application, the inventor of the present application finds that the above technology has at least the following technical problems: the independent combustible gas detection systems are required to be used for various fuel combination stations, so that the waste of resources is caused while the power consumption is too high.
The information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
Disclosure of Invention
The oil, the hydrogen and the natural gas coexist in the refueling, gas-filling and hydrogenation combined station, and all belong to flammable and explosive dangerous goods.
In view of at least one of above technical problem, this disclosure provides a combustible gas safety monitoring equipment based on add oil and gas and add hydrogenation and build station, through connecting a plurality of combustible gas concentration detectors of rationally laying, use one set of combustible gas monitoring system that builds the station and carry out organic integration with different kinds of combustible gas detection function and emergency cut-off control function such as oil gas, hydrogen, natural gas, use PLC to realize chain control, show combustible gas concentration in real time at the host computer, practice thrift the construction cost when guaranteeing to build the station security.
According to one aspect of the disclosure, a combustible gas safety monitoring device based on a refueling, gas-filling and hydrogenation combined station is provided, which comprises a combustible gas concentration detector located on site, a combustible gas alarm controller electrically connected to the combustible gas concentration detector located on site, and a server electrically connected to the combustible gas alarm controller located in a central control room and running with a refueling, gas-filling and hydrogenation station PLC station control unit software, wherein the refueling, gas-filling and hydrogenation combined station PLC intelligent control software is a simple program, and can be obtained by related field technicians through routine and adaptive adjustment based on corresponding scenes. The combustible gas concentration detector comprises a certain number of oil gas concentration detectors, natural gas concentration detectors and hydrogen concentration detectors.
In some embodiments of the present disclosure, the oil-gas concentration detector is respectively disposed at the oil gun, the oiling machine, the oil drain port, and the breather valve of the oil storage tank.
In some embodiments of the present disclosure, the natural gas concentration detector is respectively disposed at a natural gas storage tank or a natural gas storage well, a natural gas compressor, a natural gas sequence control plate, and a gas dispenser.
In some embodiments of the present disclosure, the hydrogen concentration detector is respectively disposed at the hydrogen discharge column, the hydrogen compressor, the hydrogen sequence control panel, the hydrogen storage container and the hydrogenation machine.
In some embodiments of the present disclosure, the combustible gas alarm controller is provided with an audible and visual alarm and a display device.
In some embodiments of the present disclosure, the combustible gas alarm controller is electrically connected with an explosion-proof fan control cabinet.
In some embodiments of the present disclosure, the explosion-proof fan control cabinet is electrically connected with an oil filling area explosion-proof fan, an air filling area explosion-proof fan and a hydrogenation area explosion-proof fan.
In some embodiments of the present disclosure, the combustible gas safety monitoring device is electrically connected to a power supply of the entire station, a gasoline pump, a hydrogen line pneumatic valve, and a natural gas line pneumatic valve.
In some embodiments of the present disclosure, the combustible gas safety monitoring apparatus configures a UPS power supply.
In some embodiments of the present disclosure, the combustible gas concentration detector and the combustible gas alarm controller communicate via RS 485.
In some embodiments of the present disclosure, the combustible gas alarm controller is in communication with the PLC station control unit of the refueling, gas-filling and hydrogen-adding station through a communication cable.
One or more technical solutions provided in the embodiments of the present application have at least any one of the following technical effects or advantages:
1. the combustible gas concentration detectors which are reasonably arranged are integrated in the same combustible gas control safety monitoring device, so that the safety problem and the cost problem of a multi-fuel combined station are effectively solved, and the effect of safely and energy-saving monitoring the multi-fuel combined station is realized.
2. Because the combustible gas safety monitoring equipment is provided with the UPS, the equipment can be ensured to be continuously monitored on line all the time, and potential safety hazards are thoroughly eliminated.
3. When the concentration of the combustible gas exceeds the set first-level safety limit value, related emergency facilities can be started in time, and when the concentration of the combustible gas exceeds the set second-level safety limit value, the power supply, the oil circuit and the gas circuit of the whole station are cut off in a linkage manner, so that the safety of the whole station is ensured.
Drawings
Fig. 1 is a schematic diagram of a structure of a combustible gas safety monitoring device in an embodiment of the present invention.
Fig. 2 is a flow chart of the operation of the combustible gas safety monitoring apparatus in an embodiment of the present invention.
Fig. 3 is a circuit diagram of a bus type connection according to an embodiment of the present invention.
Fig. 4 is a circuit diagram of a branching type connection manner according to an embodiment of the present invention.
In the above figures, 1, an upper computer; 2. super class 5 mesh; 3. a PLC station control unit; 31. a CPU; 32. a communication module; 33. an I/O module; 4. an audible and visual alarm; 5. a combustible gas alarm controller; 6. 485 communication lines; 7. a UPS power supply; 8. an explosion-proof fan control cabinet; 81. an explosion-proof fan in the oil filling area; 82. an explosion-proof fan in the gas charging area; 83. an explosion-proof fan in the hydrogenation zone; 9. a combustible gas concentration detector; 91. an oil gas concentration detector; 92. a natural gas concentration detector; 93. a hydrogen concentration detector; AH. High signal, AL, low signal.
Detailed Description
The programs referred to or relied on in the following embodiments are all conventional programs or simple programs in the art, and those skilled in the art can make routine selection or adaptation according to specific application scenarios.
The unit modules (components, structures, and mechanisms) and the devices such as sensors in the following examples are all conventional commercial products unless otherwise specified.
The embodiment of the application provides a combustible gas safety monitoring equipment based on refuel gas entrainment hydrogenation is built station jointly, has solved in the prior art and has built the problem that the station needs to use independent combustible gas detecting system respectively jointly to multiple fuel, causes the waste of resource when the consumption is too high.
In order to solve the problem of crosstalk, the technical scheme in the embodiment of the present application has the following general idea:
the device is connected with a plurality of combustible gas concentration detectors including an oil gas concentration detector, a natural gas concentration detector and a hydrogen concentration detector through a combustible gas alarm controller on site. The combustible gas alarm controller is provided with an audible and visual alarm, a display device and an exhaust fan. The combustible gas alarm controller receives and processes data sent by the oil gas concentration detector, the natural gas concentration detector and the hydrogen concentration detector through the RS485 communication bus, displays information such as concentration values, current states, whether faults occur and the like of all the detectors, and judges whether to alarm and start facilities such as an exhaust fan and the like. And the PLC station control unit of the refueling, hydrogenation and gas filling combined building station receives data transmitted by the combustible gas detection controller through the communication cable and sends the data to the upper computer, and judges whether to cut off the power supply, the pipeline valve and other facilities. And the safe operation of the whole station is ensured. And the upper computer is positioned in the central control room and displays the concentration value of the combustible gas in real time. The apparatus configures a UPS power source. The continuous online monitoring of the equipment is ensured all the time, the safety of the combined station is ensured, and the construction cost is saved.
For better understanding of the technical solutions of the present application, the technical solutions will be described in detail below with reference to the drawings and specific embodiments.
Example one
The embodiment discloses a combustible gas safety monitoring device based on refueling, gas filling and hydrogenation combined station, which is shown in figure 1 and comprises:
and the combustible gas concentration detector 9 positioned on site comprises an oil gas concentration detector 91, a natural gas concentration detector 92 and a hydrogen concentration detector 93. The gasoline is a very volatile liquid, the lower explosion limit of the gasoline is 1.3%, the upper explosion limit is 7.6%, the oil gas concentration detector 91 is used for detecting the concentration of oil gas volatilized from the air of the co-construction station, the volatilization and leakage positions of the oil gas in the co-construction station are usually positioned at a fuel gun, a fuel charger, an oil drain port, a breather valve of a fuel storage tank and the like, the oil gas concentration detector 91 is arranged at the above parts, and the detected data is transmitted to the combustible gas alarm controller 5 positioned on the site through RS485 bus communication. The hydrogen concentration detector 93 is used for detecting the concentration of hydrogen in the combined building station, the explosion limit of the hydrogen is 4.0-75.6% (volume concentration), the hydrogen detectors are arranged at the positions which are easy to gather the hydrogen, such as a hydrogen unloading column, a hydrogen compressor, a hydrogen sequence control panel, a hydrogen storage container, a hydrogenation machine, under a shed and the like of the combined building station, and the detected concentration value is transmitted to the combustible gas alarm controller 5 on site through RS485 bus communication. The natural gas concentration detector 92 is used for detecting the concentration of natural gas in a co-building station, and is divided into LNG (liquefied natural gas), CNG (compressed natural gas) and L-CNG (liquefied-compressed natural gas) according to a fuel gas station, wherein the lower explosion limit of the natural gas is 5%, and the upper explosion limit is 15%. The main component of natural gas is methane, which accounts for about 80-99%, and natural gas detectors are arranged at natural gas storage tanks or gas storage wells, natural gas compressors, natural gas sequence control disks, gas filling machines and the like, and the measured concentration values are transmitted to a combustible gas alarm controller 5 on site through RS485 bus communication.
The combustible gas alarm controller 5 is provided with an audible and visual alarm 4 and a display device. The combustible gas alarm controller 5 is electrically connected with an explosion-proof fan control cabinet 8. The explosion-proof fan control cabinet 8 is electrically connected with an oil filling area explosion-proof fan 81, an air filling area explosion-proof fan 82 and a hydrogenation area explosion-proof fan 83. The combustible gas alarm controller 5 receives and processes data sent by the oil gas concentration detector 91, the natural gas concentration detector 92 and the hydrogen concentration detector 93 through the RS485 communication bus, displays information such as concentration values of the detectors, current states, whether faults occur and the like, and judges whether to alarm and start facilities such as an exhaust fan and the like.
And a PLC station control unit 3 positioned in a central control room refueling and gas filling hydrogenation station controls a power supply, a gasoline pump, a hydrogen pipeline pneumatic valve, a natural gas pipeline pneumatic valve and the like of the whole station. The PLC station control unit 3 of the refueling, hydrogenation and gas filling combined station receives data transmitted by the combustible gas detection controller through a communication cable and sends the data to the upper computer 1, and judges whether to cut off power supplies, pipeline valves and other facilities. And the safe operation of the whole station is ensured.
And the upper computer 1 is positioned in the central control room and used for displaying the concentration value of the combustible gas in real time.
The apparatus configures the UPS power supply 7. The continuous online monitoring of the equipment is ensured all the time, and the potential safety hazard is thoroughly eliminated.
The working flow of the combustible gas safety monitoring equipment based on the refueling, gas filling and hydrogenation combined building station is as follows (see fig. 2):
after the equipment is powered on and started, the combustible gas concentration detector 9 detects the concentration value of the combustible gas in the environment in real time and displays the concentration value on the upper computer 1 in real time, and when the concentration of the combustible gas is lower than the set alarm value by 10 percent LEL, the display equipment displays the concentration value of the combustible gas in real time and does not trigger the alarm equipment. When the combustible gas concentration exceeds the set alarm value 10% lel, the combustible gas alarm controller 5 controls the audible and visual alarm 4 to automatically alarm and controls the relevant exhaust fan and the like in an interlocking manner by the built-in controller. When the combustible gas concentration reaches 25 percent LEL, the PLC station control unit 3 of the refueling, gas filling and hydrogen filling station cuts off the power supply of the whole station, cuts off a gasoline pump, a hydrogen pipeline and a pneumatic valve of a natural gas pipeline, and closes a gas source to ensure the safe operation of the whole station.
The control circuit of the combustible gas safety monitoring device based on the refueling, gas filling and hydrogenation combined building station (see fig. 3 and 4):
the upper computer 1 is connected with a PLC station control unit 3 through an ultra 5-type network cable 2, the PLC station control unit comprises a CPU 31, a communication module 32 and an I/O module 33, a combustible gas alarm controller 5 is connected with the PLC communication module 32 through a 485 communication cable 6 and used for uploading communication data, the PLC station control unit I/O module 33 is connected with an audible and visual alarm 4, a high alarm signal AH and a low alarm signal AL of the combustible gas alarm controller and used for transmitting alarm signals, the combustible gas alarm controller 5 is connected with a UPS (uninterrupted power supply) 7, the combustible gas alarm controller low alarm signal AL is connected with an explosion-proof fan control cabinet 8, the explosion-proof fan control cabinet is connected with an oil filling area explosion-proof fan 81, an air filling area explosion-proof fan 82 and a hydrogenation area explosion-proof fan 83, and when an oil gas concentration value in an environment reaches a preset low alarm value, the oil filling area explosion-proof fan 81 is started; when the natural gas concentration value in the environment reaches a preset low reporting value, starting the explosion-proof fan 82 of the gas filling area; when the hydrogen concentration value in the environment reaches a preset low reporting value, the explosion-proof fan 83 in the hydrogenation zone is started. The combustible gas concentration detector 9 comprises an oil gas concentration detector 91, a natural gas concentration detector 92 and a hydrogen concentration detector 93, the combustible gas alarm controller and the combustible gas concentration detector can adopt a bus type, a branching type or a combination connection mode of the bus type and the branching type, see figure 3, the combustible gas alarm controller and the combustible gas concentration detector adopt a bus type connection mode, see figure 4, and the combustible gas alarm controller and the combustible gas concentration detector adopt a branching type connection mode.
Although preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present application and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The combustible gas safety monitoring equipment based on the refueling, gas-filling and hydrogenation combined station is characterized by comprising a combustible gas concentration detector on site, a combustible gas alarm controller electrically connected to the combustible gas concentration detector on site, and a server electrically connected to the combustible gas alarm controller and located in a central control room and running PLC station control unit software of the refueling, gas-filling and hydrogenation station, wherein the combustible gas concentration detector comprises a certain number of oil gas concentration detectors, natural gas concentration detectors and hydrogen concentration detectors.
2. The combustible gas safety monitoring device based on the refueling, gas filling and hydrogenation combined station as claimed in claim 1, wherein the oil gas concentration detector is respectively arranged at the corresponding refueling gun, the refueling machine, the oil drain port and the breather valve of the oil storage tank.
3. The combustible gas safety monitoring device based on the refueling, gas-filling and hydrogenation combined station as claimed in claim 1, wherein the natural gas concentration detector is respectively arranged at a corresponding natural gas storage tank or gas storage well, a natural gas compressor, a natural gas sequence control panel and a gas filling machine.
4. The combustible gas safety monitoring device based on the refueling, gas filling and hydrogenation combined station as claimed in claim 1, wherein the hydrogen concentration detector is respectively arranged at the corresponding hydrogen discharging column, the hydrogen compressor, the hydrogen sequence control panel, the hydrogen storage container and the hydrogenation machine.
5. The combustible gas safety monitoring device based on the refueling, gas filling and hydrogenation combined building station as claimed in claim 1, wherein the combustible gas alarm controller is provided with an audible and visual alarm and a display device.
6. The combustible gas safety monitoring device based on the refueling, gas filling and hydrogenation combined building station as claimed in claim 5, wherein the combustible gas alarm controller is electrically connected with a corresponding explosion-proof fan control cabinet, and the explosion-proof fan control cabinet is electrically connected with a refueling area explosion-proof fan, a gas filling area explosion-proof fan and/or a hydrogenation area explosion-proof fan.
7. The combustible gas safety monitoring device based on the refueling, gas filling and hydrogenation combined station as claimed in claim 1, wherein the combustible gas safety monitoring device is electrically connected to the corresponding power supply, gasoline pump, pneumatic valve of hydrogen pipeline and pneumatic valve of natural gas pipeline of the whole station.
8. The combustible gas safety monitoring device based on refueling, gas adding and hydrogenation building station according to claim 1, wherein the combustible gas safety monitoring device is configured with a UPS power supply.
9. The combustible gas safety monitoring device based on the refueling, gas-filling and hydrogenation combined building station as claimed in claim 1, wherein the combustible gas concentration detector is in communication with the combustible gas alarm controller through RS485, and the combustible gas alarm controller is in communication with a PLC station control unit of the refueling, gas-filling and hydrogenation station through a communication cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221202532.XU CN217718823U (en) | 2022-05-19 | 2022-05-19 | Combustible gas safety monitoring equipment based on refueling, gas filling and hydrogenation combined building station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221202532.XU CN217718823U (en) | 2022-05-19 | 2022-05-19 | Combustible gas safety monitoring equipment based on refueling, gas filling and hydrogenation combined building station |
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| CN217718823U true CN217718823U (en) | 2022-11-01 |
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| CN202221202532.XU Active CN217718823U (en) | 2022-05-19 | 2022-05-19 | Combustible gas safety monitoring equipment based on refueling, gas filling and hydrogenation combined building station |
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