CN113390015A - Skid-mounted hydrogenation station and micro-positive pressure protection method thereof - Google Patents
Skid-mounted hydrogenation station and micro-positive pressure protection method thereof Download PDFInfo
- Publication number
- CN113390015A CN113390015A CN202010167268.XA CN202010167268A CN113390015A CN 113390015 A CN113390015 A CN 113390015A CN 202010167268 A CN202010167268 A CN 202010167268A CN 113390015 A CN113390015 A CN 113390015A
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- skid
- pressure
- station
- concentration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/011—Oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/016—Noble gases (Ar, Kr, Xe)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/016—Noble gases (Ar, Kr, Xe)
- F17C2221/017—Helium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/03—Control means
- F17C2250/034—Control means using wireless transmissions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/03—Control means
- F17C2250/036—Control means using alarms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/0447—Composition; Humidity
- F17C2250/0452—Concentration of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/07—Actions triggered by measured parameters
- F17C2250/072—Action when predefined value is reached
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/04—Reducing risks and environmental impact
- F17C2260/042—Reducing risk of explosion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
- F17C2270/0178—Cars
-
- 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
Abstract
The invention relates to the technical field of hydrogen energy safety guarantee, and discloses a skid-mounted hydrogenation station and a micro-positive pressure protection method thereof. According to the skid-mounted hydrogen station, the micro-positive pressure protection system is arranged in the skid-mounted hydrogen station, so that stable micro-positive pressure is maintained in a closed space of a skid body of the hydrogen station, the formation of combustible hydrogen atmosphere and extreme accidents such as hydrogen flame, hydrogen explosion and the like are fundamentally avoided, the structure is simple and compact, the operation and the control are convenient, and the safety level of the skid-mounted hydrogen station is effectively improved.
Description
Technical Field
The invention relates to the technical field of hydrogen energy safety guarantee, in particular to a skid-mounted hydrogenation station and a micro-positive pressure protection method thereof.
Background
The hydrogen energy has the characteristics of cleanness, environmental protection, various acquisition means, changeable storage phase states, high energy conversion efficiency and the like, so the hydrogen energy plays an increasingly important role in the aspects of reducing greenhouse gas emission, improving energy interconnection and intercommunication and the like, and is one of the fields of large-scale application of the hydrogen energy as the hydrogen energy for traffic. The hydrogen station is used as a basic energy service facility and generally comprises a fixed hydrogen station and a skid-mounted hydrogen station, wherein the skid-mounted hydrogen station has high degree of automatic control due to high integration of related equipment, so that the defects of difficult transportation, occupied area, long construction period and the like of the fixed hydrogen station equipment are overcome, and the skid-mounted hydrogen station is widely applied. However, as the combustion range of hydrogen is 4% -75%, the explosion range is 18% -59%, and the hydrogen has small density, high diffusion speed and is a fragile material, the guarantee of hydrogen safety is the basis and requirement for the development of hydrogen energy for vehicles.
In the prior art, for example: CN108332046A discloses a hydrogenation system in a skid-mounted hydrogenation device of a gas drive pump and a hydrogenation method thereof, wherein the gas drive pump, a hydrogenation machine and an air compressor are arranged in a centralized manner, the pipeline is compact, and a solution for the problem that hydrogen in the skid-mounted hydrogenation device possibly leaks and causes corresponding problems is not involved. For another example: CN 107044585A discloses technology and safety controller of sled dress formula hydrogenation station, has designed the safety control system to hydrogen leakage and conflagration, sets up surge protector, redundant switching power supply, safety controller and safety relay in the separate space independent of binding post simultaneously, but also does not design pertinent safety protection measure to sled dress formula hydrogenation station.
For the skid-mounted hydrogen station, because the high-pressure hydrogen equipment is intensively arranged, and weak links such as pipelines, valves and interfaces which are easy to leak hydrogen are mainly concentrated in the skid body, the combustion and explosion ranges of the hydrogen are wide, and the hydrogen flowability in the skid body is poor. After hydrogen leaks, the concentration of hydrogen in the skid-mounted device is difficult to effectively and quickly reduce by adopting a ventilation mode, the leaked hydrogen is easier to accumulate to reach the combustion and explosion range, and then various abnormal accidents such as hydrogen combustion, explosion, detonation and the like are caused, so that the safety potential hazard is large.
Disclosure of Invention
The skid-mounted hydrogenation station and the micro-positive pressure protection method thereof are provided, the micro-positive pressure protection system is arranged in the closed space of the skid-mounted hydrogenation station skid body of the skid-mounted hydrogenation station, so that the stable micro-positive pressure is maintained in the closed space of the skid-mounted hydrogenation station skid body, the formation of flammable hydrogen atmosphere and the occurrence of extreme accidents such as hydrogen flame, hydrogen explosion and the like are fundamentally avoided, the structure is simple and compact, the operation and control are convenient, and the safety level of the skid-mounted hydrogenation station is effectively improved.
In order to achieve the above object, the invention provides a skid-mounted hydrogen refueling station on one hand, which comprises a hydrogen refueling station skid body and a control center, wherein a micro-positive pressure protection system is arranged inside the hydrogen refueling station skid body, the micro-positive pressure protection system at least comprises a pressure detection and pressure release assembly arranged on the hydrogen refueling station skid body, the pressure detection and pressure release assembly is in communication connection with the control center through a control signal, and after the pressure detection and pressure release assembly detects that the current pressure inside the hydrogen refueling station skid body exceeds a threshold pressure, the control center sends out a control signal and releases the pressure for the hydrogen refueling station skid body through the pressure detection and pressure release assembly.
Preferably, the pressure detecting and relieving assembly includes: the pressure sensor comprises a pressure sensitive element and a signal processing unit which are connected with each other, and the pressure release valve and the signal processing unit are respectively in communication connection with the control center through control signals.
Preferably, the pressure-fired protection system is including setting up hydrogen concentration detection subassembly and the subassembly of aerifing on the hydrogen station sled body, hydrogen concentration detection subassembly, the subassembly of aerifing respectively with connect through the control signal communication between the control center, hydrogen concentration detection subassembly detects after the internal current hydrogen concentration of hydrogen station sled surpasses hydrogen threshold value concentration, through control center sends control signal and warp the subassembly of aerifing to the internal portion of hydrogen station sled aerifys.
Preferably, the pressure-fired protection system is including setting up oxygen concentration detection subassembly on the hydrogen station sled body, oxygen concentration detection subassembly with connect through the control signal communication between the control center, oxygen concentration detection subassembly detects after the internal current oxygen concentration of hydrogen station sled exceeds oxygen threshold value concentration, through the control center sends control signal and warp aerify the subassembly to the internal portion of hydrogen station sled aerifys.
Preferably, the hydrogen concentration detection assembly comprises a hydrogen detector arranged on the hydrogen station pry body and a hydrogen alarm controller arranged in the control center, and the hydrogen detector and the hydrogen alarm controller are communicated with each other through electric signals; the oxygen concentration detection assembly comprises an oxygen detector arranged on the hydrogen filling station prying body and an oxygen alarm controller arranged in the control center, and the oxygen detector and the oxygen alarm controller are communicated with each other through electric signals.
Preferably, the hydrogen detector comprises a gas sensor, the hydrogen detector converts the current hydrogen concentration detected by the gas sensor into an electric signal and sends the electric signal to the hydrogen alarm controller, and when the current hydrogen concentration exceeds the hydrogen threshold, the hydrogen alarm controller sends an alarm signal;
the oxygen detector comprises a gas sensor, converts the current oxygen concentration detected by the gas sensor into an electric signal and sends the electric signal to the oxygen alarm controller, and when the current oxygen concentration exceeds the oxygen threshold value, the oxygen alarm controller sends an alarm signal;
and/or the alarm signal comprises one or a combination of sound, light and electricity.
Preferably, the hydrogen alarm controller and the oxygen alarm controller are the same alarm controller.
Preferably, the hydrogen filling station pry body at least comprises a closed space, the inflation assembly comprises inflation ports which are communicated with the closed space and used for filling inert gas into the closed space, and the number of the inflation ports is multiple.
Preferably, the inert gas comprises: nitrogen, helium or argon.
In a second aspect, the invention provides a micro-positive pressure protection method for a skid-mounted hydrogen station as described above, which includes the following steps:
step 100: inflating the interior of the skid-mounted hydrogen station and enabling the gas pressure in the interior to reach a threshold pressure;
step 200: detecting the current gas pressure inside the skid-mounted hydrogen station in real time;
step 300: comparing the current gas pressure to a threshold pressure;
when the current gas pressure is less than the threshold pressure, entering step 400;
when the current gas pressure is larger than the threshold pressure, entering step 500;
when the current gas pressure is equal to the threshold pressure, returning to step 200;
step 400: inflating the inner part of the skid-mounted hydrogenation station and returning to the step 200;
step 500: and (5) releasing the pressure inside the skid-mounted hydrogenation station, and returning to the step 200.
Preferably, the steps 100 and 200 include:
step 010: detecting the current hydrogen concentration in the skid-mounted hydrogen station;
step 020: comparing the current hydrogen concentration with a hydrogen threshold concentration, and entering step 400 when the current hydrogen concentration is greater than the threshold concentration; otherwise, the step 010 is returned to.
Preferably, after the step 020, the step 200 further includes:
step 030: detecting the current oxygen concentration in the skid-mounted hydrogen filling station;
step 040: comparing the current oxygen concentration with an oxygen threshold concentration, and entering step 400 when the current oxygen concentration is greater than the oxygen threshold concentration; otherwise, return to step 030.
Preferably, the threshold pressure range is: 0.1-2.5 kPa.
Preferably, the gas pressure detection interval in the step 200 is 0-10 kPa.
Preferably, in step 300, before entering step 400 or step 500, an alarm is given.
Preferably, the pressure relief rate in step 500 is in the range of: not less than 0.01-0.1m3/(min·m3)。
Preferably, the detection range of the current hydrogen concentration is: hydrogen ratio range: 0-4 vol.%; lower hydrogen explosion limit range: 0-100 LEL%.
Preferably, the hydrogen threshold concentration range is: 2% LEL-25% LEL.
Preferably, the threshold oxygen concentration range is: 0.1-10.0 vol.%.
Preferably, the aeration in step 400 is performed at a rate of not less than 0.06-0.2m3/(min·m3) The inflation pressure of the gas is not lower than 1.8-3.0 kPa.
Preferably, the inflation rate of the gas is: not less than 0.1m3/(min·m3) The gas inflation gauge pressure is: not less than 2.5 kPa.
Through the technical scheme, the micro-positive pressure protection system is arranged in the closed space of the hydrogen station prying body of the prying type hydrogen station, so that stable micro-positive pressure is maintained in the closed space of the hydrogen station prying body, the formation of combustible hydrogen atmosphere and extreme accidents such as hydrogen flame, hydrogen explosion and the like are essentially avoided, the structure is simple and compact, the operation and the control are convenient, and the safety level of the prying type hydrogen station is effectively improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a skid-mounted hydrogen station according to an embodiment of the present invention;
FIG. 2 is a flow chart of the most basic steps of the inerting protection method of the skid-mounted hydrogenation station shown in FIG. 1.
Description of the reference numerals
100 hydrogenation station sled body 101 bottom plate 102 lateral wall 103 top cap 110 hydrogen concentration detection component 120 oxygen concentration detection component 130 gas filling port 200 pressure detection and pressure release component 300 hydrogen compressor 400 hydrogenation machine 500 high pressure hydrogen storage tank
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the use of directional terms such as "upper, lower, left, right" generally means upper, lower, left, right as viewed with reference to the accompanying drawings, unless otherwise specified; "inner and outer" generally refer to the inner and outer relative to the profile of the components themselves; "distal and proximal" generally refer to distance relative to the contour of the components themselves.
As shown in fig. 1, the invention provides a skid-mounted hydrogen filling station, which includes a hydrogen filling station skid 100 and a control center (not shown in the figure), wherein a micro-positive pressure protection system is arranged inside the hydrogen filling station skid 100, the micro-positive pressure protection system at least includes a pressure detection and pressure release component 200 arranged on the hydrogen filling station skid 100, the pressure detection and pressure release component 200 is in communication connection with the control center through a control signal, and when the pressure detection and pressure release component 200 detects that the current pressure inside the hydrogen filling station skid 100 exceeds a threshold pressure, the control center sends a control signal and releases the pressure for the hydrogen filling station skid 100 through the pressure detection and pressure release component 200. According to the invention, the pressure detection and pressure relief assembly is arranged in the hydrogen station prying body to detect, control and adjust the gas pressure in the hydrogen station prying body in real time, so that the generation of combustible hydrogen atmosphere and extreme accidents such as hydrogen flame, hydrogen explosion and the like are essentially avoided, and the safe operation of the skid-mounted hydrogen station is ensured.
In an embodiment of the present invention, the pressure detecting and relieving assembly includes: the pressure sensor comprises a pressure sensitive element and a signal processing unit which are connected with each other, and the pressure release valve and the signal processing unit are respectively in communication connection with the control center through control signals. The pressure sensor and the air release valve can be commercially available products, and the specific structure and the working principle of the pressure sensor and the air release valve are not important contents to be protected by the invention and are not described in detail herein.
Specifically, in other embodiments of the invention, the micro-positive pressure protection system includes a hydrogen concentration detection assembly 110 and an inflation assembly that are arranged on the hydrogen station skid 100, the hydrogen concentration detection assembly 110 and the inflation assembly are respectively connected to the control center in a communication manner by control signals, and after the hydrogen concentration detection assembly 110 detects that the current hydrogen concentration inside the hydrogen station skid 100 exceeds the hydrogen threshold concentration, the control center sends out a control signal and inflates the inside of the hydrogen station skid 100 via the inflation assembly.
Further, in another embodiment of the present invention, the micro-positive pressure protection system includes an oxygen concentration detection assembly 120 disposed on the hydrogen refueling station skid 100, control centers of the oxygen concentration detection assembly 120 are connected in communication by a control signal, and after a current oxygen concentration inside the hydrogen refueling station skid 100 of the oxygen concentration detection assembly 120 exceeds an oxygen threshold concentration, the control center sends a control signal and charges the inside of the hydrogen refueling station skid 100 through the charging assembly.
More specifically, the hydrogen concentration detection assembly 110 includes a hydrogen detector disposed on the hydrogen refueling station skid 100 and a hydrogen alarm controller disposed at the control center, the hydrogen detector and the hydrogen alarm controller being in communication with each other through electrical signals; likewise, the oxygen concentration detection assembly 120 includes an oxygen detector disposed on the hydrogen station skid 100 and an oxygen alarm controller disposed at the control center, the oxygen detector and the oxygen alarm controller being in communication with each other via electrical signals. The hydrogen detector comprises a gas sensor, converts the current hydrogen concentration detected by the gas sensor into an electric signal and sends the electric signal to the hydrogen alarm controller, and when the current hydrogen concentration exceeds the hydrogen threshold value, the hydrogen alarm controller sends an alarm signal; the oxygen detector comprises a gas sensor, the oxygen detector converts the current oxygen concentration detected by the gas sensor into an electric signal, the electric signal is sent to the oxygen alarm controller, and when the current oxygen concentration exceeds the oxygen threshold value, the oxygen alarm controller sends out an alarm signal. The alarm signal may comprise an individual alarm form of sound, light, electricity, etc. or a combination of two or more of them, such as: the alarm sound is sent out and the red light flickers at the same time. In order to simplify the structure and make the whole structure more compact, in practical application, the hydrogen alarm controller and the oxygen alarm controller can be the same alarm controller, and are respectively in electric signal communication with the hydrogen alarm controller and the oxygen alarm controller in the control center through different circuits, and alarm is carried out under different detection states.
The hydrogen alarm controller in the hydrogen concentration detection assembly 110 and the oxygen alarm controller in the oxygen concentration detection assembly 120 may be part of a control center, respectively, and the hydrogen detector in the hydrogen concentration detection assembly 110 and the oxygen detector in the oxygen concentration detection assembly 120 respectively detect the current hydrogen concentration and the current oxygen concentration in the skid-mounted hydrogen refueling station in real time. Since the hydrogen gas detector and the oxygen gas detector for detecting the concentration of hydrogen gas or oxygen gas in the skid-mounted hydrogen refueling station are preferably fixed gas detectors, the skid-mounted hydrogen refueling station is usually in a continuous online operation state. In order to improve the sensitivity, the gas detector may be installed at a position where gas is most likely to leak or accumulate or a plurality of gas detectors may be arranged at the position, and the core component of the gas detector is a gas sensor. The gas sensor converts the detected hydrogen or oxygen concentration into an electric signal, and transmits the electric signal to the hydrogen or oxygen alarm controller through a cable, the higher the gas concentration is, the stronger the electric signal is, and when the gas concentration of the hydrogen or oxygen reaches or exceeds the hydrogen or oxygen threshold concentration set by the alarm controller, the hydrogen or oxygen alarm controller sends an alarm signal. The key content to be protected by the invention is to detect and control the gas pressure in the skid-mounted hydrogen station, so that the gas pressure is kept at a micro-positive pressure within a certain range, the generation of flammable hydrogen atmosphere is essentially avoided, and the safe operation of the skid-mounted hydrogen station is ensured. For the selective use of hydrogen or oxygen detectors, commercially available stationary hydrogen or oxygen detectors can essentially meet the requirements of use.
Referring to fig. 1, in a general case, the hydrogen station pry 100 at least includes a closed space surrounded by a bottom plate 101, a side wall 102 and a top cover 103, the inflation assembly includes an inflation inlet 130 communicated with the closed space and used for filling inert gas into the closed space, so as to conveniently inflate the closed space of the hydrogen station pry 100 and ensure uniform and stable inflation, and the number of the inflation inlets 130 is plural. In the embodiment shown in FIG. 1, aeration ports 130 are provided on side wall 102 of hydrogen station sled 100 near the bottom. Of course, the layout is performed according to different specifications and sizes of the enclosed space enclosed by the hydrogen station pry body 100 and different assembling requirements of other devices and equipment inside the hydrogen station pry body 100, such as: the plurality of aeration ports 130 may alternatively be uniformly disposed in the length or height direction of the hydrogen station skid 100. Alternatively, multiple plenums 130 may be provided at 4m intervals along the length of the hydroprocessing station sled 100, and so on, with the plenums 130 being positioned generally at the bottom of the hydroprocessing station sled 100. Typically, all of the plenums 130 provided on the hydroprocessing station skid 100 and the enclosed space within the hydroprocessing station skid 100 are provided with sealing structures to ensure that the enclosed space of the hydroprocessing station skid 100 is substantially free of nitrogen leakage during normal operating conditions.
The inflation assembly is connected by a pipe to an inert gas storage tank (not shown) in which a non-flammable inert gas is stored, such as: nitrogen in this example. Other inert gases such as helium and argon may be used, and carbon dioxide may be used, but nitrogen, helium, or argon are preferable. The inert gas storage tank can be in various structural forms, such as: the inert gas storage tank or the bottle group can adopt other structural forms in practical application, and the inert gas storage tank or the bottle group also belongs to the protection scope of the invention. According to the actual installation space requirement of the skid-mounted hydrogen station, the inert gas storage tank can be arranged inside the skid body 100 of the hydrogen station; alternatively, the inert gas storage tank may be an external device outside of the hydroprocessing station skid 100. In the embodiment shown in fig. 1, the inert gas storage tank is an external device disposed outside of the hydrogen station skid 100, and is therefore not shown in the overall structure of the skid-mounted hydrogen station in fig. 1.
In the embodiment shown in fig. 1, as an integrated high-pressure hydrogen-contacting device, the structure inside the hydrogen station skid 100 mainly includes a high-pressure hydrogen storage tank 500, a hydrogen compressor 300, and a hydrogen engine 400, which are communicated with each other, the high-pressure hydrogen storage tank 500 and the hydrogen compressor 300 are disposed inside the enclosed space, and in consideration of design, application, and the like of the skid-mounted hydrogen station, the rest of devices including a hydrogen discharge system, a cooling system, and the like, and their accessory pipelines are disposed inside the enclosed space of the hydrogen station skid 100, and the hydrogen engine 400 is disposed outside the enclosed space. The connection relationship and the structural arrangement of the physical pipelines and the electronic circuits between the hydrogen adding machine 400 and the high-pressure hydrogen storage tank 500 and the hydrogen compressor 300, and the process of sending and receiving control signals and executing control commands between the hydrogen adding machine 400 and the control center belong to the conventional technical means in the field, and are not described herein again.
In addition, the invention does not provide a unique or exclusive requirement for the performance and safety index of any device or equipment mentioned above, and generally, the device or equipment is a relevant device or equipment which is commercially available and passes the inspection and detection of relevant departments. The micro-positive pressure protection system arranged in the closed space of the skid-mounted hydrogen filling station does not carry out any process or technical modification on the device or equipment, and is safe to maintain by manufacturers and field personnel.
It should be noted that, because the hydrogen station skid is a closed hydrogen station having a closed space, oxygen may be introduced into the closed space during abnormal conditions or maintenance, and during normal operation, the oxygen concentration is maintained at a low level or no oxygen, so that the oxygen concentration is limited to a range of 0.1-10.0 vol.%, and generally, for most skid-mounted hydrogen stations, the oxygen concentration is below 1 vol.% at the normal operation level. The main reason for controlling the oxygen concentration in the hydrogen refueling station is that the oxygen mainly has the combustion supporting effect, and when the oxygen is controlled to be in a low or oxygen-free concentration, even if the hydrogen leaks, the phenomena of combustion, explosion or detonation and the like cannot occur due to the lack of enough oxygen, so the safety of the skid-mounted hydrogen refueling station is essentially improved. When hydrogen leakage happens inside a skid-mounted hydrogen station, and the current hydrogen concentration is detected to exceed the standard, an inflating assembly arranged in the skid-mounted hydrogen station rapidly inflates inert gas into the skid-mounted hydrogen station through a plurality of inflating ports, and simultaneously, the gas pressure inside an inflated closed space is detected and controlled through a pressure detecting and pressure releasing assembly.
In a second aspect, the present invention provides a method for protecting the skid-mounted hydrogen station under the micro-positive pressure, as described above, and shown in fig. 2 in combination with fig. 1, the method includes the following steps:
step 100: inflating the interior of the skid-mounted hydrogen station and enabling the gas pressure in the interior to reach a threshold pressure;
step 200: detecting the current gas pressure inside the skid-mounted hydrogen station in real time;
step 300: comparing the current gas pressure to a threshold pressure;
when the current gas pressure is less than the threshold pressure, entering step 400;
when the current gas pressure is larger than the threshold pressure, entering step 500;
when the current gas pressure is equal to the threshold pressure, returning to step 200;
step 400: inflating the inner part of the skid-mounted hydrogenation station and returning to the step 200;
step 500: and (5) releasing the pressure inside the skid-mounted hydrogenation station, and returning to the step 200.
In order to further detect whether hydrogen leakage occurs inside the hydro station skid, the steps 100 and 200 include:
step 010: detecting the current hydrogen concentration in the skid-mounted hydrogen station;
step 020: comparing the current hydrogen concentration with a hydrogen threshold concentration, and entering step 400 when the current hydrogen concentration is greater than the threshold concentration; otherwise, the step 010 is returned to.
In order to further detect whether the oxygen concentration inside the lift body of the hydrogen refueling station has reached the combustion-supporting concentration, after the step 020, the step 200 further includes:
step 030: detecting the current oxygen concentration in the skid-mounted hydrogen filling station;
step 040: comparing the current oxygen concentration with an oxygen threshold concentration, and entering step 400 when the current oxygen concentration is greater than the oxygen threshold concentration; otherwise, return to step 030.
The threshold pressure range is, as desired: 0.1-2.5 kPa.
The gas pressure detection interval in the step 200 is 0-10 kPa.
In order to remind the operator of the attention timely, in the step 300, before entering the step 400 or the step 500, an alarm is given.
Typically, the pressure relief rate in step 500 ranges from: 0.01-0.1m3/(min·m3)。
In addition, the detection range of the current hydrogen concentration is: hydrogen ratio range: 0-4 vol.%; lower hydrogen explosion limit range: 0-100 LEL%.
The hydrogen threshold concentration ranges are: 2% LEL-25% LEL.
The oxygen threshold concentration range is: 0.1-10.0 vol.%.
In order to enable the closed space in the pry body of the hydrogen station to quickly and smoothly reach a micro-positive pressure state, the step 400 of inflating gas is carried out, wherein the inflating speed of the gas is not lower than 0.06-0.2m3/(min·m3) The inflation pressure of the gas is not lower than 1.8-3.0 kPa.
Further, the inflation rate of the gas is: not less than 0.1m3/(min·m3) The gas inflation gauge pressure is: not less than 2.5 kPa.
The following describes the technical solution of the present invention in detail with reference to fig. 1 and fig. 2, with specific parameters and working processes in specific embodiments, aiming at the actual operation situation that hydrogen leakage and fire, explosion and other extreme abnormal conditions may occur in the skid-mounted hydrogen refueling station.
The invention provides equipment applied to the field of hydrogen energy safety guarantee, in particular to a skid-mounted hydrogen refueling station, which aims to essentially prevent the occurrence of extreme accidents such as hydrogen flame, hydrogen explosion and the like caused by the flammable hydrogen atmosphere in a closed space in a hydrogen refueling station skid body and improve the safety of the skid-mounted hydrogen refueling station; of course, the corresponding pipelines, circuit connections and the like for connecting the above components are also included, and are not described in detail herein.
When the skid-mounted hydrogen filling station operates normally, inert gas from the outside of the closed space of the skid-mounted hydrogen filling station skid body 100 is filled into the closed space in a decompression mode through the gas charging port 130, the inert gas selected in the embodiment is nitrogen, and the gas charging rate of the inert gas charging rate of the gas charging port 130 is not lower than 0.06-0.2m3/(min·m3) The inflation gauge pressure of the gas is not less than 1.8 to 3.0kPa, and the inflation rate of the inert gas is preferably: the pressure of the inert gas is more than or equal to 0.1m3/min, the inflation gauge pressure of the inert gas is more than or equal to 2.5kPa, and the micro-positive pressure in the pry body is maintained to be 0.1-2.5kPa after inflation. It should be noted that, for the skid-mounted hydrogen filling station with the micro-positive pressure protection system provided by the present invention, if the inert gas filled into the skid-mounted hydrogen filling station is nitrogen, the content of nitrogen is the highest under normal working conditions in the enclosed space of the skid body of the hydrogen filling station, and the detected gas pressure is the gauge pressure of the mixed gas in the skid body. The achievement and maintenance of micro-positive pressure in the pry body are mainly completed through the inflation port 130. The pressure detection and decompression assembly 200 is used for detecting the gas pressure in the closed space of the hydrogen station pry body 100, and the detection working interval of the gas pressure is 0-10 kPa. On the premise that no hydrogen leakage occurs, the hydrogen concentration detection component 110 does not detect that hydrogen exists in the hydrogen station pry; meanwhile, the oxygen concentration detection assembly 120 detects that the oxygen concentration in the hydrogen station skid 100 is not higher than 1 vol.%, and the system runs stably. The detection range of the hydrogen concentration of the hydrogen detector in the hydrogen concentration detection assembly 110 is: hydrogen ratio range: 0-4 vol.%; lower hydrogen explosion limit range: 0-100 LEL%. The hydrogen threshold concentration ranges are: 2% LEL-25% LEL. Once hydrogen leakage occurs, the hydrogen concentration detection assembly immediately detects the change of the hydrogen concentration, and the hydrogen alarm controller gives an alarm and simultaneously sends out an alarmThe gas charging assembly continues to charge nitrogen gas into the closed space of the hydrogen station skid body 100 through the gas charging port 130, so that the generation of combustible hydrogen gas atmosphere and extreme accidents such as hydrogen flame, hydrogen explosion and the like are essentially avoided, and the safe operation of the skid-mounted hydrogen station is ensured. Once the pressure sensor in the pressure detecting and relieving assembly 200 detects that the slight positive pressure in the enclosed space of the hydrogen station skid 100 is higher than the set pressure threshold, the pressure relief valve in the pressure detecting and relieving assembly 200 is activated, so that the pressure in the enclosed space of the hydrogen station skid 100 is slowly reduced. Typically, the pressure relief rate is adjustable, and the rate range of pressure relief is: 0.01-0.1m3/(min·m3). If the pressure sensor in the pressure detecting and relieving assembly 200 detects that the micro-positive pressure in the skid is lower than the set pressure threshold, the nitrogen gas is continuously and automatically supplemented into the closed space of the hydrogen station skid 100 from the gas charging port 130. Likewise, the oxygen concentration detection assembly 120 detects and compares the oxygen concentration within the hydrogen station skid 100 to a preset oxygen threshold concentration. The oxygen threshold concentration is typically in the range: 0.1-10.0 vol.%. Is higher than a preset oxygen threshold concentration, such as: when the oxygen concentration detector in the oxygen concentration detection assembly 120 detects that the concentration of oxygen in the enclosed space of the hydrogen station skid body 100 is higher than 1 vol.%, nitrogen is supplemented into the enclosed space of the hydrogen station skid body 100 through the gas charging port 130, while the nitrogen is continuously charged, the pressure sensor in the pressure detection and pressure release assembly 200 always detects the gas pressure in the enclosed space, and the oxygen concentration detection assembly 120 and the pressure detection and pressure release assembly 200 act together to keep the micro-positive pressure state while the concentration of oxygen in the enclosed space is lower than 1 vol.%.
In conclusion, the micro-positive pressure protection system is arranged in the closed space of the skid body of the skid-mounted hydrogen station, so that the concentration of oxygen which is possibly introduced and the concentration of hydrogen which is possibly leaked in the working process are detected in real time in abnormal working conditions or in the process of maintenance, meanwhile, the inert gas is filled into the closed space in the skid body of the hydrogen station through the gas filling assembly, the stable micro-positive pressure of the gas is maintained in the closed space, the formation of flammable hydrogen atmosphere and the occurrence of extreme accidents such as hydrogen flame, hydrogen explosion and the like are fundamentally avoided, the structure is simple and compact, the operation and the control are convenient, and the safety level of the skid-mounted hydrogen station is effectively improved.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the present invention, various simple modifications may be made to the technical solution of the present invention, for example, in addition to the pressure detecting and pressure releasing assembly, the hydrogen concentration detecting assembly, the oxygen concentration detecting assembly and the inflating assembly included in the micro-positive pressure protection system in the above embodiments, other auxiliary devices or apparatuses such as a ventilation assembly, a cooling system, etc. may be included, and in practical applications, they may be selected and combined as needed. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (21)
1. The utility model provides a sled dress formula hydrogen station, includes hydrogen station sled body (100) and control center, its characterized in that, the inside of hydrogen station sled body (100) is equipped with pressure-fired pressure protection system, pressure-fired pressure protection system is at least including setting up pressure detection and pressure release subassembly (200) on hydrogen station sled body (100), pressure detection and pressure release subassembly (200) with connect through the control signal communication between the control center, pressure detection and pressure release subassembly (200) detect after the inside current pressure of hydrogen station sled body (100) exceeds threshold pressure, control center sends control signal and warp pressure detection and pressure release subassembly (200) do hydrogen station sled body (100) pressure release.
2. The skid-mounted hydrogen station according to claim 1, wherein the pressure sensing and relieving assembly (200) comprises: the pressure sensor comprises a pressure sensitive element and a signal processing unit which are connected with each other, and the pressure release valve and the signal processing unit are respectively in communication connection with the control center through control signals.
3. The skid-mounted hydrogen filling station according to claim 1, wherein the micro-positive pressure protection system comprises a hydrogen concentration detection assembly (110) and an inflation assembly which are arranged on the hydrogen filling station skid body (100), the hydrogen concentration detection assembly (110) and the inflation assembly are respectively in communication connection with the control center through control signals, and after the hydrogen concentration detection assembly (110) detects that the current hydrogen concentration inside the hydrogen filling station skid body (100) exceeds a hydrogen threshold concentration, the control center sends out a control signal and inflates the inside of the hydrogen filling station skid body (100) through the inflation assembly.
4. The skid-mounted hydrogen station according to claim 3, wherein the micro-positive pressure protection system comprises an oxygen concentration detection assembly (120) arranged on the hydrogen station skid body (100), the oxygen concentration detection assembly (120) is in communication connection with the control center through a control signal, and after the oxygen concentration detection assembly (120) detects that the current oxygen concentration inside the hydrogen station skid body (100) exceeds an oxygen threshold concentration, the control center sends out a control signal and charges the inside of the hydrogen station skid body (100) through the gas charging assembly.
5. The skid-mounted hydrogen station according to claim 4, wherein the hydrogen concentration detection assembly (110) comprises a hydrogen detector provided on the hydrogen station skid (100) and a hydrogen alarm controller provided at the control center, the hydrogen detector and the hydrogen alarm controller communicating with each other through electrical signals;
the oxygen concentration detection assembly (120) comprises an oxygen detector arranged on the hydrogen filling station pry body (100) and an oxygen alarm controller arranged in the control center, and the oxygen detector and the oxygen alarm controller are communicated with each other through electric signals.
6. The skid-mounted hydrogen station of claim 5, wherein the hydrogen detector comprises a gas sensor, the hydrogen detector converts a current hydrogen concentration detected by the gas sensor into an electrical signal and sends the electrical signal to the hydrogen alarm controller, and the hydrogen alarm controller sends an alarm signal when the current hydrogen concentration exceeds the hydrogen threshold;
the oxygen detector comprises a gas sensor, converts the current oxygen concentration detected by the gas sensor into an electric signal and sends the electric signal to the oxygen alarm controller, and when the current oxygen concentration exceeds the oxygen threshold value, the oxygen alarm controller sends an alarm signal;
and/or the alarm signal comprises one or a combination of sound, light and electricity.
7. The skid-mounted hydrogen station of claim 6, wherein the hydrogen alarm controller and the oxygen alarm controller are the same alarm controller.
8. The skid-mounted hydrogen station according to claim 3, wherein the hydrogen station skid body (100) comprises at least an enclosed space, the inflation assembly comprises an inflation port (130) communicated with the enclosed space for inflating inert gas into the enclosed space, and the number of the inflation ports (130) is multiple.
9. The skid-mounted hydrogen station of claim 8, wherein the inert gas comprises: nitrogen, helium or argon.
10. A method of micro-positive pressure protection for a skid-mounted hydrogen plant according to any one of claims 1 to 9, comprising the steps of:
step 100: inflating the interior of the skid-mounted hydrogen station and enabling the gas pressure in the interior to reach a threshold pressure;
step 200: detecting the current gas pressure inside the skid-mounted hydrogen station in real time;
step 300: comparing the current gas pressure to a threshold pressure;
when the current gas pressure is less than the threshold pressure, entering step 400;
when the current gas pressure is larger than the threshold pressure, entering step 500;
when the current gas pressure is equal to the threshold pressure, returning to step 200;
step 400: inflating the inner part of the skid-mounted hydrogenation station and returning to the step 200;
step 500: and (5) releasing the pressure inside the skid-mounted hydrogenation station, and returning to the step 200.
11. The micro-positive pressure protection method for the skid-mounted hydrogen station according to claim 10, wherein the step 100 and the step 200 comprise:
step 010: detecting the current hydrogen concentration in the skid-mounted hydrogen station;
step 020: comparing the current hydrogen concentration with a hydrogen threshold concentration, and entering step 400 when the current hydrogen concentration is greater than the threshold concentration; otherwise, the step 010 is returned to.
12. The method for micro-positive pressure protection of a skid-mounted hydrogen station as set forth in claim 11, wherein after step 020, step 200 is preceded by the further steps of:
step 030: detecting the current oxygen concentration in the skid-mounted hydrogen filling station;
step 040: comparing the current oxygen concentration with an oxygen threshold concentration, and entering step 400 when the current oxygen concentration is greater than the oxygen threshold concentration; otherwise, return to step 030.
13. The micro-positive pressure protection method for a skid-mounted hydrogen station of claim 10, wherein the threshold pressure range is: 0.1-2.5 kPa.
14. The micro-positive pressure protection method for the skid-mounted hydrogenation station as recited in claim 10, wherein the gas pressure detection interval in the step 200 is 0-10 kPa.
15. The micro-positive pressure protection method for the skid-mounted hydrogen station as claimed in claim 10, wherein in the step 300, before entering the step 400 or the step 500, an alarm is given.
16. The method of micro-positive pressure protection for a skid-mounted hydrogen plant of claim 10, wherein the pressure relief in step 500 is at a rate ranging from: not less than 0.01-0.1m3/(min·m3)。
17. The micro-positive pressure protection method for the skid-mounted hydrogen station according to claim 11, wherein the detection range of the current hydrogen concentration is as follows: hydrogen ratio range: 0-4 vol.%; lower hydrogen explosion limit range: 0-100 LEL%.
18. The micro-positive pressure protection method for a skid-mounted hydrogen station of claim 11, wherein the hydrogen threshold concentration range is: 2% LEL-25% LEL.
19. The micro-positive pressure protection method for a skid-mounted hydrogen station of claim 12, wherein the threshold concentration range of oxygen is: 0.1-10.0 vol.%.
20. The micro-positive pressure protection method for a skid-mounted hydrogen station as set forth in claim 10, wherein the aeration rate of the gas in the step 400 is not less than 0.06-0.2m3/(min·m3) The inflation pressure of the gas is not lower than 1.8-3.0 kPa.
21. The micro-positive pressure protection method for a skid-mounted hydrogen station according to claim 20, wherein the aeration rate of the gas is: not less than 0.1m3/(min·m3) Inflation of gasThe gauge pressure is: not less than 2.5 kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010167268.XA CN113390015A (en) | 2020-03-11 | 2020-03-11 | Skid-mounted hydrogenation station and micro-positive pressure protection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010167268.XA CN113390015A (en) | 2020-03-11 | 2020-03-11 | Skid-mounted hydrogenation station and micro-positive pressure protection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113390015A true CN113390015A (en) | 2021-09-14 |
Family
ID=77615402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010167268.XA Pending CN113390015A (en) | 2020-03-11 | 2020-03-11 | Skid-mounted hydrogenation station and micro-positive pressure protection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113390015A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115264384A (en) * | 2022-07-12 | 2022-11-01 | 林金华 | Hydrogenation safety control method, hydrogenation system, construction method of hydrogenation system and hydrogen storage safety control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030164202A1 (en) * | 2002-01-10 | 2003-09-04 | Graham John David Trevor | Hydrogen fueling station |
| CN1987193A (en) * | 2006-12-25 | 2007-06-27 | 浙江大学 | Warning device for hydrogen safety security |
| CN107061988A (en) * | 2017-01-17 | 2017-08-18 | 张家港富瑞氢能装备有限公司 | Skid supercharging, hydrogenation plant and skid hydrogenation stations |
| CN108361545A (en) * | 2018-01-11 | 2018-08-03 | 上海氢枫能源技术有限公司 | Hydrogen compressor skid hydrogenation plant |
| CN109307148A (en) * | 2017-07-28 | 2019-02-05 | 株式会社神户制钢所 | Hydrogenation stations |
-
2020
- 2020-03-11 CN CN202010167268.XA patent/CN113390015A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030164202A1 (en) * | 2002-01-10 | 2003-09-04 | Graham John David Trevor | Hydrogen fueling station |
| CN1987193A (en) * | 2006-12-25 | 2007-06-27 | 浙江大学 | Warning device for hydrogen safety security |
| CN107061988A (en) * | 2017-01-17 | 2017-08-18 | 张家港富瑞氢能装备有限公司 | Skid supercharging, hydrogenation plant and skid hydrogenation stations |
| CN109307148A (en) * | 2017-07-28 | 2019-02-05 | 株式会社神户制钢所 | Hydrogenation stations |
| CN108361545A (en) * | 2018-01-11 | 2018-08-03 | 上海氢枫能源技术有限公司 | Hydrogen compressor skid hydrogenation plant |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115264384A (en) * | 2022-07-12 | 2022-11-01 | 林金华 | Hydrogenation safety control method, hydrogenation system, construction method of hydrogenation system and hydrogen storage safety control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113390016A (en) | Skid-mounted hydrogenation station and inertia charging protection method thereof | |
| CN113090943B (en) | Mobile hydrogen filling station system and explosion-proof method thereof | |
| CN101306791B (en) | Multifunction non-leakage cap plate device of hermetic tanker for gas-recovering | |
| CN108365240A (en) | FCEV hydrogen fuel installation units are automatically controlled actively to arrange hydrogen system | |
| CN114432620A (en) | Electrochemistry energy storage power station fire extinguishing system | |
| CN113390015A (en) | Skid-mounted hydrogenation station and micro-positive pressure protection method thereof | |
| CN109216732B (en) | High-pressure hydrogen supply system of hydrogen fuel cell ship | |
| CN215733542U (en) | Battery pack charging system | |
| CN207731142U (en) | A kind of hydrogen explosion protection system device of container-type | |
| CN113541243A (en) | Battery pack charging system and charging method thereof | |
| CN112361228A (en) | Explosion-proof type electric control hydraulic actuating mechanism and working method thereof | |
| CN112577720B (en) | Pipe end flame arrester deflagration testing device and testing method | |
| CN218845744U (en) | Hydrogen leakage collecting and discharging device for fuel cell electric automobile indoor parking | |
| CN208760463U (en) | A kind of locomotive vehicle-mounted power battery pack fire safety control system | |
| CN216798538U (en) | Safety control system for electric ship and energy storage station | |
| CN102437300A (en) | Novel dynamic power supply | |
| CN214565239U (en) | Comprehensive maintenance station for hydrogen fuel cell automobile | |
| CN207165703U (en) | System and the automobile using the system are protected in a kind of cold cell p ack leakages of liquid | |
| CN113500917B (en) | Method for charging protective gas into lithium ion battery box | |
| US20230277883A1 (en) | Inert gas fire suppression system for mobile equipment | |
| CN214309350U (en) | Automobile brake pipeline air tightness testing device capable of dynamically displaying air pressure value | |
| CN217684379U (en) | Sealed nitrogen-filled hydrogen-wading container | |
| CN220439030U (en) | Three-level safety monitoring system for hydrogen fuel cell laboratory | |
| CN108584872A (en) | The safe shutdown protective device of hydrogen making by natural gas reformation system | |
| CN114440127B (en) | Intelligent explosion-proof system for liquid hydrogen storage tank and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |