CN117967974A

CN117967974A - Marine hydrogen production and hydrogenation integrated station debugging method

Info

Publication number: CN117967974A
Application number: CN202410113570.5A
Authority: CN
Inventors: 冉毅川; 叶青平; 关苏敏; 李友平; 汤正阳; 徐波; 王俊青; 谭鋆; 崔磊; 刘亚青; 梁波; 谌睿; 谢方祥; 乐零陵
Original assignee: Changjiang Institute of Survey Planning Design and Research Co Ltd; China Yangtze Power Co Ltd
Current assignee: Changjiang Institute of Survey Planning Design and Research Co Ltd; China Yangtze Power Co Ltd
Priority date: 2024-01-26
Filing date: 2024-01-26
Publication date: 2024-05-03

Abstract

The invention provides a marine hydrogen production and hydrogenation integrated station debugging method, which comprises the following steps: s1, preparing before debugging; s2, single machine debugging: the method comprises the steps of hydrogen production equipment monomer debugging, hydrogenation equipment monomer debugging and hydrogenation linkage debugging; s3, hydrogen production feeding debugging; s4, charging and debugging of the hydrogenation system. The debugging method is used for debugging and detecting the hydrogen production and hydrogenation system, ensuring good equipment debugging state and improving debugging efficiency.

Description

Marine hydrogen production and hydrogenation integrated station debugging method

Technical Field

The invention relates to the field of hydrogen preparation and use, in particular to a method for debugging a marine hydrogen production and hydrogenation integrated station.

Background

The Yangtze river electric power green electricity green hydrogen demonstration project integrates a PEM hydrogen production system, a 20MPa hydrogen compression system, a 45MPa hydrogen compression system, a ship/vehicle filling system, a control system, a safety alarm system, an oxygen filling system and the like. The whole system is complex in operation, the quality of hydrogen production is affected by improper debugging, explosion danger and the like are caused easily, and the debugging difficulty is high.

Disclosure of Invention

The invention aims to solve the technical problem of providing a debugging method of a marine hydrogen production and hydrogenation integrated station, which is used for debugging and detecting a hydrogen production and hydrogenation system, ensuring good equipment debugging state and improving debugging efficiency.

In order to solve the technical problems, the invention adopts the following technical scheme: a debugging method of a marine hydrogen production and hydrogenation integrated station comprises the following steps: s1, preparing before debugging; s2, single machine debugging: the method comprises the steps of hydrogen production equipment monomer debugging, hydrogenation equipment monomer debugging and hydrogenation linkage debugging; s3, hydrogen production feeding debugging; s4, charging and debugging of the hydrogenation system.

In a preferred solution, in the step S1, the preparation before the debugging includes an electrical function test, a debugging of the hydrogen-producing rectifying power system, and a pipeline inspection, where the electrical function test includes the following items:

1) Completing the insulation test of the power cable;

2) Checking all power lines, signal lines, communication bus marks and hardware connection, and ensuring no missing connection and misconnection;

3) Checking that all electric components in the electric cabinet are correct in model and position and good in appearance;

4) Each breaker is in an OFF position, and all fuses are intact;

5) All connecting screws in the cabinet should be firm and have no looseness;

6) The ground resistance test is completed;

7) Testing a UPS power supply;

8) Short circuit inspection of the electric cabinet circuit;

9) The power load circuit is checked, and for the lighting, the pump, the fan and the heater of the hydrogen production device, the interphase resistance and the phase-ground insulation resistance are measured at the wiring terminal at the side of the electrical cabinet, so that the balance of the three-phase load, the phase-ground insulation and no short circuit phenomenon are ensured;

10 The insulation resistance measurement of the electrolytic cell is completed.

In a preferred scheme, the hydrogen production rectifying power supply system debugging comprises rectifying transformer inspection and rectifying power supply debugging, and the rectifying power supply debugging steps are as follows:

S101, operating a closing button of a panel of an alternating current switch cabinet to close an alternating current switch of the alternating current switch cabinet;

s102, opening a front cabinet door of the rectifying power supply, manually closing a control switch of an auxiliary power supply in the power supply, closing the cabinet door and waiting for the panel display lamp to be electrified;

S103, turning a start-stop knob of the rectifying power supply at a start position;

S104, repeating the step S102 and the step S103, closing an auxiliary power supply switch of each unit of the power supply, and turning a start-stop knob of each unit to a start position;

s105, checking alternating voltage and current fed back by the power supply through an intelligent hydrogen energy management controller or a power supply debugging upper computer;

s106, checking whether the communication between the power supply and the intelligent hydrogen energy management controller is normal or not;

S107, checking whether the functions of the power supply and external emergency stop are normal;

S108, connecting the electrolytic tank according to a debugging plan of the hydrogen production system, and carrying out load test.

In the preferred scheme, the pipeline inspection comprises a strength test, an air tightness test and qualified pipeline blowing, wherein the qualified pipeline blowing is that a white board is arranged at an exhaust port of the pipeline for inspection, and then the pipeline is blown, and no rust or other sundries on the white board are qualified.

In a preferred embodiment, in the step S2, the hydrogen production device monomer debugging includes the following steps:

1) The PLC control system is electrified to test the transmission cabinet and each electrical cabinet;

2) And (3) hardware debugging: the method comprises network connection debugging and external loop checking;

3) Software control function debugging: the method comprises the steps of integral stand control system picture test and control logic debugging;

4) Cold test run of the hydrogen production device;

5) The gas-liquid separation unit performs alarm interlocking simulation test;

6) Purifying alarm interlocking simulation test;

7) Simulation test of SIS system interlocking logic;

8) Cleaning a hydrogen production system: cleaning an electrolytic tank, a pipeline and accessories of the hydrogen production system by pure water;

9) Nitrogen replacement of hydrogen production system: the nitrogen is replaced by the nitrogen, the pressure is released to 0.1MPa after the pressure is reduced to 0.5MPa in the nitrogen charging and hydrogen pressing system, the pressure is repeated for three times, whether the oxygen content is qualified or not is detected through an exhaust port in the third pressure release, if the test is qualified, the nitrogen is continuously charged to 0.2MPa, the pressure is maintained, and the oxygen in the air is prevented from entering the system; if the test is not qualified after the third pressure relief, repeating the nitrogen replacement until the test is qualified.

In a preferred embodiment, in the step S2, the monomer debugging of the hydrogenation apparatus includes the following steps:

1) And (3) confirming the mechanical state of the hydrogen filling and discharging column: operating a hand valve on a hydrogen filling and discharging column panel, observing the states of a pressure gauge and a safety valve, and confirming that the valve is normal in operation, the reading of the pressure gauge is normal, and the lead sealing of the safety valve is good;

2) And (3) confirming the mechanical state of the hydrogen storage safety valve group: sequential control disc mechanical state confirmation: operating a hand valve in the valve group to determine that the valve is normal in operation; the pneumatic valve is actuated by the station control system to determine the normal action of the pneumatic valve; comparing the process flow diagram, and confirming that each valve is in an initial opening and closing state; observing the state of the safety valve to ensure that the lead seal is intact;

3) Sequential control disc mechanical state confirmation: operating a hand valve in the valve group to determine that the valve is normal in operation; the pneumatic valve is actuated by the station control system to determine the normal action of the pneumatic valve; comparing the process flow diagram, and confirming that each valve is in an initial opening and closing state;

4) Bus mechanical state confirmation: operating a hand valve on the busbar panel, observing the state of the pressure gauge, and confirming that the valve is normal in operation and the pressure gauge is normal in reading;

5) Vehicle hydrotreater and ship hydrotreater mechanical state confirmation: operating the hand valve in the hydrogenation machine, observing the state of the pressure gauge and the safety valve, and confirming that the valve is normal in operation, the reading of the pressure gauge is normal, and the lead sealing of the safety valve is good; the pneumatic valve is actuated by the station control system to determine the normal action of the pneumatic valve;

6) And (5) debugging and confirming the cold water machine and the compressor.

The method for debugging the hydrogen production and hydrogenation integrated station for the ship according to claim 1, wherein in the step S2, the hydrogen production and hydrogenation linkage debugging comprises buffer tank pressure simulation interlocking test, security system simulation linkage test, station control system simulation joint debugging and emergency stop function simulation test.

In the preferred scheme, in the step S3, the hydrogen production feeding debugging includes replacement pressurization by nitrogen and feeding debugging of the hydrogen production system, the nitrogen is filled into the hydrogen storage container and the pipeline system, the pressure is increased to 1MPa during replacement, then the hydrogen is discharged to be not higher than 0.2MPa, and the hydrogen is replaced five times, so that the oxygen content in the hydrogen storage container and the pipeline system is reduced to a safe range.

In a preferred scheme, the hydrogen production system feeding debugging comprises the following items:

1) Manual hot test run: the electrolytic tank is electrified to run by direct current, the running power is gradually and manually increased, and PID parameters of the system pressure, the pressure balance of the oxyhydrogen separator and the pure water temperature are regulated, so that the stable running of the hydrogen production device is ensured;

2) Automatically starting up and running a test;

3) Alarming and interlocking test of the gas-liquid separation unit;

4) Full load operation test: gradually lifting the electrolytic tank to full-load operation, and confirming the operation state of the electrolytic tank and equipment in the whole process;

5) Purifying and running the test;

6) Purifying alarm interlocking test;

7) SIS system interlock logic test.

In a preferred scheme, in the step S4, the charging and debugging of the hydrogenation system is a charging and testing of the hydrogenation system, and the method sequentially comprises the following testing steps:

1) Buffer tank pressure interlock test: the hydrogen buffer tank is provided with a normally closed pressure switch, when the pressure reaches 3.15MPa, the normally closed node becomes a normally open node, the hydrogen production control loop is cut off, and the hydrogen production is stopped; when the pressure reaches a low pressure value, the control loop is switched on again, and hydrogen production can be started;

2) The security system is linked;

3) Station control system joint debugging;

4) The hydrogen production system is subjected to material feeding test;

5) Hydrogen substitution: when the hydrogen in the hydrogen storage bottle group is replaced, the pressure is set to be 1.2MPa and then is discharged to be not higher than 0.2MPa, the replacement is carried out for five times, and whether the purity of the hydrogen in the hydrogen storage bottle group meets the standard requirement is measured after the replacement for five times;

6) The method comprises the steps of performing pressurization test on a compressor feeding test run and a corresponding hydrogen storage bottle group, and detecting whether leakage exists after pressure stabilization;

7) Marine or vehicle hydrogenation test: filling hydrogen is in a filling and filling mode, a ship or a vehicle enters a station to finish hydrogenation preparation work, a station control system switches the filling and filling mode, and whether filling pressure meets the standard requirement is tested.

The invention provides a debugging method of a marine hydrogen production and hydrogenation integrated station, which has the following beneficial effects:

1. The debugging steps are reasonable in design and simple to operate.

2. Through monomer debugging, linkage debugging, hydrogen production debugging and hydrogen production debugging, not only single equipment is debugged, but also hydrogen production and hydrogenation links are respectively debugged, so that the follow-up hydrogen production and hydrogenation integrated operation is realized.

3. The debugging method is applied to green electricity green hydrogen demonstration project debugging work and has been successfully applied.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a debug flow chart of the present invention;

Detailed Description

The marine hydrogen production and hydrogenation integrated station integrates a PEM hydrogen production system, a 20MPa hydrogen compression system, a 45MPa hydrogen compression system, a ship/vehicle filling system, a control system, a safety alarm system, an oxygen filling system and the like. The hydrogen production complete equipment consists of a PEM hydrogen production container, a public engineering container, a water cooling tower, an oxygen filling system, a 20MPa hydrogen compressor, a 45MPa hydrogen compressor, a 3.0MPa hydrogen buffer tank, a 20MPa hydrogen storage bottle group, a 45MPa hydrogen storage bottle group, a 20MPa hydrogen storage safety valve group, a 45MPa sequence control panel, a 35MPa car hydrogenator, a 35MPa ship hydrogenator, a hydrogenation hose mechanical arm, a hydrogen filling and unloading column, a cold water machine set (20 MPa and 45MPa compressors) for the compressor, a cold water machine set (car hydrogenator and ship hydrogenator) for hydrogenation, an instrument wind and purging busbar (nitrogen busbar), a hydrogenation pipeline heat exchanger, a process pipeline valve, a control system, a safety monitoring system and the like.

The public engineering equipment of the hydrogen production device comprises an air compressor, a water chiller, a water purifier, a water cooling tower and the like, and the gas-liquid separation unit equipment comprises a valve, a pure water electric heater, a pure water circulating pump and the like.

A debugging method of a marine hydrogen production and hydrogenation integrated station is shown in fig. 1, and comprises the following steps:

s1, preparing before debugging.

Before debugging the process system, the main public system comprises: the power supply and distribution system, the station direct current and UPS system, the flame automatic alarm and linkage control system and the ventilation air conditioning system are installed and debugged; the station control system is installed and the network communication is debugged; the lightning protection and grounding system of the station area is installed, and the use requirement of equipment is met; the hydrogenation equipment and the pipeline are installed, and the pressure test and the purging are qualified.

In addition, the hydrogen production power supply system is debugged.

During the debugging, no cross operation in the station control room and the process equipment area should be ensured, and the debugging scheme is confirmed by the constructor and the supervisor.

The preparation before debugging comprises electrical function test, hydrogen production rectifying power system debugging and pipeline inspection.

The debugging electricity consumption in the station is required to implement three-phase five-wire system and three-level control two-level protection, wherein the leakage action current of the leakage switch of the first-level protection is determined by itself according to the actual electricity consumption, and the leakage action time is less than 0.1 second. The protection neutral line must be laid separately, not allowed to pass through any switches and fuses, and repeatedly grounded at the branch point, end point and equipment concentration point. The knife switch is forbidden to be used by the power supply, the air switch and the leakage protector are uniformly replaced, and the on-site electric equipment such as the pressure testing pump and the like should keep good cable insulation and grounding.

The electrical functional test comprises the following items:

1) The insulation test of the power cable is completed, and the insulation resistance of the cable meets the requirement (more than 5M ohms).

2) Checking all power lines, signal lines, communication bus marks and hardware connection, and ensuring no missed connection and misconnection.

3) And (5) checking that all electric components in the electric cabinet are correct in model and position and good in appearance.

4) Each circuit breaker is in the "OFF" position with its correct position and all fuses intact.

5) All connecting screws in the cabinet should be firm and free of looseness.

6) The ground resistance test is completed, and the ground resistance is required to meet the requirement (less than 4 ohms).

7) UPS power supply test: a) The check switch cabinet and the UPS switch are both in the "OFF" position. b) The UPS is put into operation by an electric staff, and the measured UPS output voltage is 220VAC + -10 percent and 50Hz + -2 percent. c) Uninterrupted testing of UPS was performed by electricians. (after full load application, the test is repeated, and the power supply time of the storage battery is not less than 60 minutes).

8) Short circuit inspection of an electric cabinet circuit: a. checking whether the phase-to-phase and phase-to-ground insulation resistance of the lower end of each circuit breaker meets the design requirement (> 0.5MΩ), checking whether a special load is connected below if the insulation resistance does not meet the requirement, and eliminating the short circuit phenomenon; b. and after the short circuit investigation of each breaker is completed, closing processing (except for special load) is carried out, and the lower end of the total breaker is subjected to interphase and phase-to-ground insulation resistance check to see whether the interphase and the phase-to-ground insulation resistance are more than 0.5MΩ. c. After the inspection is completed, each circuit breaker is restored to the "OFF" state.

9) And (3) checking a power load circuit, namely measuring interphase resistance and phase-ground insulation resistance of a wiring terminal at the side of an electrical cabinet for lighting, a pump, a fan and a heater of the hydrogen production device, so as to ensure three-phase load balance, phase-ground insulation and no short circuit phenomenon.

10 The measurement of the insulation resistance of the cell is completed, the insulation resistance being satisfactory (> 1mΩ).

The hydrogen production rectifying power supply system debugging comprises rectifying transformer inspection and rectifying power supply debugging.

The rectifier transformer was checked for the following items:

1) The iron core and the shell are well grounded;

2) No foreign matter falls on the coil and the lead wire row;

3) All fasteners are not loosened;

4) The temperature controller works normally;

5) The tap connecting piece has good contact, consistent three phases and proper position;

6) The insulating layer has no split and falling site;

7) The fan test rotation is good;

8) Checking that the wiring phase sequence of the rectifier transformer is consistent;

9) Each protection is put into practice;

10 The protection barrier is good, and the door is locked;

11 Performing a handover test on the rectifier;

12 Checking the auxiliary power supply of the rectifier.

And after the rectification power supply is inspected, transmitting power to the high-voltage side of the transformer. And observing whether the transformer is abnormal in noise and temperature, and whether the input voltage is normal.

When the rectifying power supply is debugged, firstly, checking the appearance of the rectifying power supply, and judging whether the rectifying power supply is damaged. Checking the phase sequence, the reliability and the insulation of a wiring terminal of an alternating current wiring of a rectification power supply; checking and checking the reliability and insulation of the positive electrode and the negative electrode of the direct current wiring and the wiring terminal of the rectification power supply; and checking the serial numbers of the alternating current and direct current cables according to the construction wiring diagram, and ensuring correct wiring. And checking the wiring reliability of the communication cable and the emergency stop cable, and checking the cable number to ensure the wiring is correct.

After the inspection is qualified, the steps for debugging the rectification power supply are as follows:

s101, operating a closing button of a panel of the alternating current switch cabinet to close an alternating current switch of the alternating current switch cabinet.

S102, opening a front cabinet door of the rectifying power supply, manually closing a control switch of an auxiliary power supply in the power supply, closing the cabinet door and waiting for the panel display lamp to be electrified.

S103, turning the start-stop knob of the rectifying power supply at the start position.

S104, repeating the step S102 and the step S103, closing an auxiliary power supply switch of each unit of the power supply, and turning a start-stop knob of each unit to a start position.

S105, checking the alternating voltage and current fed back by the power supply through the intelligent hydrogen energy management controller HC100 or the power supply debugging upper computer.

S106, checking whether the communication between the power supply and the intelligent hydrogen energy management controller HC100 is normal.

S107, checking whether the functions of the power supply and external emergency stop are normal.

Considering the protection of equipment, construction wiring is checked and a line is measured by referring to a drawing before the equipment is electrified, high and low voltage and phase cannot be shorted, and an insulation test is carried out on a 380V power supply loop. Each device is powered on, sensor signals and solenoid valve actions are confirmed.

And confirming data communication among the hydrogen production system, the oxygen filling system, the vehicular hydrogenation machine, the ship filling hydrogenation machine, the 20MPa compressor, the 45MPa compressor, the water chiller and the station control system.

And detecting the function of the hydrogen concentration detector by using the test gas at a position which is 5-15 cm away from the position just below the probe of the hydrogen concentration detector. Checking whether the alarm lamp flashes when the alarm signal is detected; whether the station control computer displays the concentration of the combustible gas or not and gives an alarm prompt; and whether the audible and visual alarm responds in an interlocking way.

Testing with a 0.5m (H) by 0.2m (W) flame over a probe angle of 120 degrees of the flame detector;

When detecting the alarm signal, the flame detector body flashes if the alarm lamp; whether the station control computer gives an alarm prompt or not; and whether the audible and visual alarm responds in an interlocking way.

The pipeline inspection comprises a strength test, an air tightness test and a pipeline purging qualification, wherein the pipeline purging qualification is that a white board is arranged at an exhaust port of the pipeline for inspection, then the pipeline is purged, and no rust or other sundries on the white board are qualified.

S2, single machine debugging: comprises hydrogen production equipment monomer debugging, hydrogenation equipment monomer debugging and hydrogenation linkage debugging.

Single body debugging of hydrogen production equipment

The method comprises the following steps:

1) And the PLC control system is electrified to test the transmission cabinet and each electrical cabinet.

Powering on a transmission cabinet:

And confirming that the main power supply breaker switch of the transmission cabinet is arranged at an OFF position, arranging the main power supply breaker switch of the 400V power supply of the client at an ON position, and checking the voltage before the main power supply breaker switch of the transmission cabinet by using a digital multimeter, wherein the voltage is 380 VAC+/-10%. And checking the resistance value among phases after the main power circuit breaker switch of the transmission cabinet by using a digital multimeter, and after no short circuit is ensured, placing the main power circuit breaker switch of the transmission cabinet in an ON position to finish the power-ON of the transmission cabinet.

And (5) powering up other electrical cabinets: and (3) putting other electrical cabinet power switches in the transmission cabinet at an ON position, and checking whether the voltage before the cabinet main power switch meets the requirement or not by using a digital multimeter. And after the secondary confirmation, placing the main power circuit breaker switch of each electrical cabinet at the ON position to finish the power-ON of each electrical cabinet. And (3) confirming the wiring condition of each branch breaker in the electric cabinet, then sequentially putting the corresponding breaker switch ON, and measuring whether the voltage output of each breaker is normal or not by using a digital voltmeter.

2) And (3) hardware debugging: including network connection commissioning and external loop checking.

3) Software control function debugging: the method comprises the steps of integral station control system picture test and control logic debugging.

The integrated station control system picture test comprises the following items:

a. The picture display check includes static picture and dynamic picture check to ensure that the picture display information is correct, the color change of the pump and the valve is the same as the actual color change, and the output of each measured value, set value, analog and digital form is correct.

B. And (3) testing control functions: and selecting a corresponding operation picture, performing experiments of adjusting set values, control modes (automatic/manual) and manual output, and testing that data transmission between the integrated station control system and the PLC is normal.

C. And testing the historical trend picture to confirm that the picture is configured according to the configuration data table and can be automatically updated.

D. and testing an alarm summarizing picture, and checking that alarm pictures are arranged according to the occurrence time sequence of each alarm to confirm that the description, the state and the like of each alarm are correct.

E. The keyboard function test is operated to confirm that the function keys directly operated by an operator are normally operated, various displays can be called, each instruction (including control mode, set value, output signal adjustment and the like) is operated, and functions such as alarm confirmation and the like are realized. The parameter setting, system login and logout functions can be normally performed.

The control logic debugging comprises the following steps:

a. And confirming that the signal loop related to the control logic is normal again, and the signal feedback and the actuating mechanism are normal in action.

B. and (3) manually operating a valve switch, starting and stopping a pump, starting and stopping public engineering equipment and manually and automatically switching on a picture to ensure normal action.

C. and checking whether hard wiring of the emergency stop button and the oxygen side pressure switch of the gas-liquid separation unit is normal or not, and whether normal interlocking action can be triggered or not.

D. Checking whether the interlocking control wiring of the hydrogen production device and the hydrogen production power supply is normal or not, and triggering related interlocking or not.

E. Logic such as start, stop, interlock protection and the like in the control program is checked to ensure that the logic meets the actual operation requirement.

4) The hydrogen production device is subjected to cold test. The test procedure was as follows:

a. Screwing a remote/local knob from the hydrogen production control cabinet to the remote;

b. Switching utility equipment from an integrated station control system screen to an automatic mode;

c. all valves and pumps of the gas-liquid separation unit are switched to an automatic mode from an integrated station control system picture, and the purification unit is confirmed to be in a non-linkage mode. Confirming that the process parameter setting has no problem from the picture of the integrated station control system, and not triggering an alarm;

d. Clicking a start button to check whether each unit of the public engineering equipment is started normally in sequence;

e. After the starting of the public engineering equipment is finished, checking whether a pure water circulating pump is started normally or not and whether pure water flow exists or not; if no flow or large flow fluctuation exists after the pump is started, after the pure water pump is switched to a manual mode to stop, the pure water pipeline is exhausted by the connection process, and then the automatic mode is restored;

f. Checking whether the pure water temperature of the oxygen separator is less than 40 ℃, switching to a heating bypass when the pure water temperature is less than 40 ℃, starting heating by a pure water heater, stopping heating by the heater after the pure water temperature of the oxygen separator is heated to 40 ℃, switching back to a circulating main path, and entering the operation state of the gas-liquid separation unit;

g. Adjusting PID parameters of the pure water circulating pump;

h. After stable operation is carried out for 10min, clicking a stop button;

i. Checking whether the pure water circulating pump and the public engineering equipment are stopped in sequence;

j. repeating the above steps for more than 3 times;

k. after cold starting the gas-liquid separation unit according to the steps (a) - (f), pressing a common engineering container emergency stop button to confirm whether the interlocking stop can be performed, and repeating the steps for more than 2 times;

And l, after the gas-liquid separation unit is started in a cold mode according to the steps (a) - (f), a control room emergency stop button is pressed to confirm whether the interlocking stop can be carried out, and the step is repeated for more than 2 times.

5) And (3) performing alarm interlocking simulation test on the gas-liquid separation unit, and simulating whether the fault interlocking shutdown function is normal or not in the operation process of the hydrogen production device. The test procedure was as follows:

a. The hydrogen production control cabinet rotates the remote/local knob to the remote;

c. Switching all valves and pumps of the gas-liquid separation unit to an automatic mode from an integrated station control system picture, and confirming that the purification unit is in a non-linkage mode;

d. confirming that the process parameter setting is not problematic from the picture of the integrated station control system;

e. Clicking a start button to check whether each unit of the public engineering equipment is started normally in sequence;

f. After the starting of the public engineering equipment is finished, checking whether a pure water circulating pump of the hydrogen production device is started or not;

g. Checking whether the pure water temperature of the oxygen separator is less than 40 ℃, switching to a heating bypass when the pure water temperature is less than 40 ℃, starting heating by a pure water heater, stopping heating by the heater after the pure water temperature of the oxygen separator is heated to 40 ℃, switching back to a circulating main circuit, and entering the operation state of the gas-liquid separation unit;

h. After the hydrogen production device is operated in a simulation mode, an alarm and an interlocking stop are triggered by setting process parameters. Stopping (suggesting system pressure and pressure balance), emptying (suggesting oxygen content in hydrogen measurement) and scram, wherein the three interlocking actions at least need to be tested once;

i. Confirming that the shutdown time sequence is normal;

j. And other test items which are not performed in the simulation operation of the gas-liquid separation unit adopt a point location triggering simulation test mode to simulate the occurrence of faults, and confirm the transmission conditions of alarms and faults and the fault display conditions of the station control system.

6) And (5) purifying alarm interlocking simulation test.

The testing process comprises the following steps:

a. the gas-liquid separation unit runs in a cold test;

b. The purification unit is operated in a simulation mode;

c. After the whole hydrogen production device is simulated to run, triggering the purification equipment to alarm and stop in an interlocking way or to be emptied by setting process parameters; the three interlocking actions of stopping, emptying and scram need to be tested at least once.

D. and confirming that the interlocking action of the purifying equipment is normal.

E. Other test items which are not performed in the simulation operation of the purification unit adopt a point location triggering simulation test mode to simulate the occurrence of faults, confirm the transmission condition of alarms and faults and display the fault condition of the station control system;

f. Clicking the stop button to stop the machine.

7) SIS system interlock logic simulation test.

The SIS system is provided with 4 SIF loops, namely an S1001 oxygen separator liquid level low-low interlocking electrolytic stop tank, an anode oxygen pressure high-interlocking electrolytic stop tank at the outlet of the electrolytic tank R6001-2, an cathode hydrogen pressure high-interlocking electrolytic stop tank at the outlet of the electrolytic tank R6001-2, and an anode oxygen pressure difference high-interlocking electrolytic stop tank at the outlet of the electrolytic tank R6001-2.

The test procedure was as follows:

a. the gas-liquid separation unit runs in a cold test;

b. After the hydrogen production device runs in a cold test, relevant parameter setting is carried out, whether the SIF loop responds normally or not is confirmed, whether the hydrogen production system is stopped or not is confirmed, and whether the SIS system has relevant alarm or not is confirmed;

c. And confirming that the shutdown time sequence is normal.

D. the above steps are repeated until all SIF loop tests are completed, and the test records are recorded in the table.

8) Cleaning a hydrogen production system: and cleaning the electrolytic tank, the pipeline and the accessories of the hydrogen production system by pure water.

The operation steps are as follows:

a. And (3) pipeline connection: connecting a pure water outlet pipeline of the public engineering container with a pure water pipeline of the hydrogen production container through a conveying pipe to ensure no leakage of the interface; the hydrogen separator in the hydrogen production container is connected with the communicating pipe of the oxygen separator, so that no leakage of the interface is ensured.

B. And (3) pipeline dismantling: the pipelines connected with the electrolytic tank are all removed from the back of the valve, and the removed pipeline pipe fittings are washed by pure water independently for at least three times.

C. And (3) hose connection: the pure water inlet pipe of the electrolytic tank is connected with an oxygen pipeline and a hydrogen pipeline by a metal hose, so that no leakage of the interface is ensured.

D. removing a basket type filter element on the pure water pipeline during the first two times of flushing, and after the third time of flushing, reloading the filter element for the last flushing; and (3) removing the flowmeter on the pure water pipeline, replacing the flowmeter with a tool, and returning the flowmeter after cleaning.

E. opening the valve, namely opening and closing the corresponding valve according to the corresponding process requirement of pure water supplementing operation; starting the water purifier, replenishing fresh water into the pure water tank, observing the liquid level meter, and starting the water replenishing pump to replenish water after the pure water in the pure water tank is full.

F. Observing the liquid level of the separator, and closing the water supplementing pump when the liquid level meter indicates that the liquid level reaches the neutral value.

G. starting a pure water circulating pump: and the pure water circulating pump is slowly started, and whether the pipeline system leaks or not is observed. Observing the pump outlet pressure gauge, if the reading drops rapidly and greatly, shutting down the pure water circulation pump.

H. stopping the pure water pump circulating pump: and closing the pure water circulating pump after the pure water circulating pump is operated for 2 hours.

I. discharging liquid: and opening a drain valve to drain the liquid in the system.

J. disassembly of the filter: and (3) disassembling the inlet filter of the pure water circulating pump, cleaning a filter screen after disassembling, and reserving and analyzing cleaned residues.

K. Cleaning an electrolytic cell: removing the metal hose, connecting the electrolytic tank into the system, and operating according to the steps until the conductivity is less than or equal to 2 mu s/cm.

L, job record: the data should be recorded according to the field operation condition.

And m, the ion exchange column is cut out in the whole cleaning process, and the ion exchange column cannot be taken for circulation.

9) Nitrogen replacement of hydrogen production system:

The nitrogen replacement generally uses nitrogen packaging lattice, and can also use high-purity nitrogen produced by a nitrogen making machine, wherein the nitrogen content is more than or equal to 99.99%.

The nitrogen substitution should be done with respect to system pressure. The design pressure of the device is 3.3 Mpa, and the pressure during nitrogen replacement should not be higher than the design pressure.

The nitrogen is replaced by the nitrogen, the pressure is released to 0.1MPa after the pressure is reduced to 0.5MPa in the nitrogen charging and hydrogen pressing system, the pressure is repeated for three times, whether the oxygen content is qualified or not is detected through an exhaust port in the third pressure release, if the test is qualified, the nitrogen is continuously charged to 0.2MPa, the pressure is maintained, and the oxygen in the air is prevented from entering the system; if the test is not qualified after the third pressure relief, repeating the nitrogen replacement until the test is qualified.

The hydrogen production system can be divided into two parts, namely a gas-liquid separation part and a purification part, according to the process flow and the pipeline installation, wherein the electrolytic tank unit can carry out nitrogen replacement together with the gas-liquid separation part.

(II) hydrogenation equipment monomer debugging

The method comprises the following steps:

1) And (3) confirming the mechanical state of the hydrogen filling and discharging column: operating a hand valve on a hydrogen filling and discharging column panel, observing the states of the pressure gauge and the safety valve, and confirming that the valve is normal in operation, the reading of the pressure gauge is normal, and the lead sealing of the safety valve is good.

2) And (3) confirming the mechanical state of the hydrogen storage safety valve group: sequential control disc mechanical state confirmation: operating a hand valve in the valve group to determine that the valve is normal in operation; the pneumatic valve is actuated by the station control system to determine the normal action of the pneumatic valve; comparing the process flow diagram, and confirming that each valve is in an initial opening and closing state; and observing the state of the safety valve to ensure that the lead seal is intact.

3) Sequential control disc mechanical state confirmation: operating a hand valve in the valve group to determine that the valve is normal in operation; the pneumatic valve is actuated by the station control system to determine the normal action of the pneumatic valve; and (5) comparing the process flow chart, and confirming that each valve is in an initial opening and closing state.

4) Bus mechanical state confirmation: operating a hand valve on the busbar panel, observing the state of the pressure gauge, and confirming that the valve is normal in operation and the pressure gauge is normal in reading.

5) Vehicle hydrotreater and ship hydrotreater mechanical state confirmation: operating the hand valve in the hydrogenation machine, observing the state of the pressure gauge and the safety valve, and confirming that the valve is normal in operation, the reading of the pressure gauge is normal, and the lead sealing of the safety valve is good; and the pneumatic valve is actuated by the station control system to determine the normal action of the pneumatic valve.

6) And (5) debugging and confirming the cold water machine and the compressor.

Before use, circulating cooling water is added, the water chiller is electrified, and the normal screen display function is confirmed; observing a refrigerant pressure gauge to confirm that the pressure is not too high or too low; confirm that the cold water machine can be started and stopped normally.

(III) hydrogenation linkage debugging

The method comprises buffer tank pressure simulation interlocking test, security system simulation linkage test, station control system simulation joint debugging and emergency stop function simulation test.

The hydrogen buffer tank is provided with a normally closed pressure switch, when the pressure reaches 3.15MPa, the normally closed node becomes a normally open node, and the hydrogen production control loop is cut off to stop hydrogen production. When the pressure reaches a low pressure value, the control loop is switched on again, and hydrogen production can be started.

A. the buffer tank pressure simulation interlocking test process is as follows:

adjusting a pressure switch pressure high limit setting pointer to the actual pressure of the hydrogen buffer tank; and (5) observing whether a safety relay of the hydrogen production control cabinet is triggered or not, and whether relevant emergency stop signals are transmitted to a hydrogen production power supply and a hydrogen production PLC or not.

B. the simulation linkage test process of the security system is as follows:

Simulating alarm triggering of a security (fire alarm, combustible gas and flame detection) system; confirming whether the safety and public control cabinet receives related signals, whether an alarm is triggered, and whether related interlocking actions are triggered; and confirming whether the hydrogen production system and the hydrogenation system PLC receive interlocking signals of the safety and public control cabinets.

C. the test process of the station control system simulation joint debugging is as follows:

1) Graph monitoring and debugging

① Checking whether the data display, valve state, equipment state and liquid level display of a graphic monitoring interface (gas-liquid separation, purification, public works, power supply, hydrogenation, oxygen filling and safety and public systems) are normal;

② Checking whether the valve operation, the equipment operation instruction issuing and the status feedback display are normal or not;

2) Data monitoring

① Real-time data: checking whether the working states of hydrogen production, hydrogenation, oxygen filling, security protection and the like and real-time data display are normal or not;

② Historical data: checking whether the historical curve display of data such as hydrogen production, hydrogenation, oxygen filling, security protection and the like is normal or not;

3) Alarm management

① Real-time alarm: checking whether real-time alarm display and elimination of equipment such as hydrogen production, hydrogenation, oxygen filling, security protection and the like are normal or not;

② History warning: checking whether the history alarm record inquiry and derivation are normal or not;

4) Parameter setting

① Parameter setting: whether the parameter setting issuing and readback of the equipment such as hydrogen production, hydrogenation, oxygen filling, security protection and the like are normal or not;

② Operation setting: valves and equipment such as hydrogen production, hydrogenation, oxygen filling, security protection and the like are operated and issued and the state is read back normally;

5) Command issue log

Checking whether the inquiry of the log record issued by the instruction is normal or not;

6) Key start/stop control for hydrogen production system

① Checking the system startup configuration, putting in the electrolytic tank, and judging whether the mode switching is normal or not;

② Checking the starting configuration of a single cell, putting in the electrolytic cell, switching modes, and judging whether the parameter setting of the single cell is normal or not;

③ Checking whether the starting self-check is normal;

④ Checking whether the system startup and shutdown instruction issuing and state readback are normal or not;

7) Hydrogen production system single plant control

① Starting/stopping gas-liquid separation;

② The purification unit is started/stopped, linked/non-linked;

③ Utility manual/automatic;

④ Single equipment start/stop for public works (air compressor, water cooling tower, water purifier, refrigerator, circulating pump, etc.)

8) Key start/stop control for hydrogenation system

And the hydrogenation system starts/stops the command issuing control.

D. The test process of the scram function simulation test is as follows:

pressing the emergency stop button, and correctly displaying the emergency stop state on the station control computer monitoring picture; confirming that the scram interlocking action is executed (including equipment scram and whole station scram); the confirm scram button may be reset normally.

S3, hydrogen production feeding debugging.

The hydrogen production feeding debugging comprises replacement pressurization through nitrogen and feeding debugging of a hydrogen production system.

And (3) filling nitrogen into the hydrogen storage container and the pipeline system, discharging the nitrogen to not higher than 0.2MPa after the pressure is increased to 1MPa during replacement, and replacing for five times, so that the oxygen content in the hydrogen storage container and the pipeline system is reduced to a safe range, and the oxygen content is less than 0.5%.

Taking the replacement pressurization of the hydrogen buffer tank portion as an example, the following description will be given:

a. Confirming that the hydrogen production part vent valve is in a closed state, confirming that the buffer tank vent valve is in a closed state, and confirming that the hydrogen buffer tank gas outlet ball valve is in a closed state;

b. The nitrogen interface of the inlet pipeline of the hydrogen buffer tank is connected with the nitrogen cylinder group, and the ball valve on the pipeline and the ball valve at the inlet of the buffer tank are sequentially opened;

c. Opening a valve on the pipeline, and balancing nitrogen from the nitrogen cylinder group to the buffer tank at the moment;

d. When the nitrogen cylinder group is insufficient to balance the buffer tank to the target pressure (not less than 1.0 MPa), firstly closing a manual valve at the inlet of the buffer tank, then replacing the nitrogen cylinder group, and then opening the manual valve to continue nitrogen balance;

c. Observing data of a pressure gauge or a pressure sensor at the front end of the hydrogen buffer tank, and closing a pneumatic valve and a manual valve at the inlet of the buffer tank when the pressure value is more than or equal to 1.0 MPa;

e. And stabilizing the pressure for 5 minutes, opening an emptying valve of the buffer tank, observing data of a pressure gauge or a pressure sensor at the front end of the buffer tank, and closing the emptying valve when the pressure value is less than or equal to 0.2 MPa.

The above process is repeated 5 times (the actual number of times of repetition is enough that the oxygen content is less than 0.5 percent), and the manual valve at the inlet of the storage buffer tank and other related pneumatic valves and manual valves are closed after the completion.

The hydrogen production system feeding debugging comprises the following items:

A. manual hot test run: the electrolytic tank is electrified to run by direct current, the running power is gradually and manually increased, and PID parameters of the system pressure, the pressure balance of the oxyhydrogen separator and the pure water temperature are regulated, so that the stable running of the hydrogen production device is ensured.

The test procedure was as follows:

1) Screwing a remote/local knob from the hydrogen production control cabinet to the remote;

2) Switching utility equipment from an integrated station control system screen to an automatic mode;

3) Switching a valve and a pump of the gas-liquid separation unit from an integrated station control system picture to an automatic mode, and confirming that the purification unit is in a non-linkage mode;

4) The process parameter setting is confirmed from the integrated station control system picture without problems. Because the system pressure regulating valve parameter needs to be regulated, the system pressure is set to be 1.5Mpa (the power is set to be 50%) for the first time, and the system pressure is gradually regulated to be 3.0Mpa (0.5 Mpa is regulated each time) after the system pressure regulating valve parameter is optimized; similarly, the pure water temperature is set to 45 ℃ due to the first debugging, and the temperature is set to 60 ℃ after the parameter optimization of the pure water temperature regulating valve is completed;

5) Clicking an integrated station control system to select an input electrolytic tank;

6) Clicking a start button issued by the integrated station control system to check whether each unit of the public engineering equipment is normally started in sequence;

7) After the starting of the public engineering equipment is finished, checking whether the pure water circulating pump is normally started or not and whether the pure water circulating pump has flow or not from the integrated station control system;

8) Checking whether the pure water temperature of the oxygen separator is less than 40 ℃, switching to a heating bypass when the pure water temperature is less than 40 ℃, starting heating by a pure water heater, stopping heating by the heater after the pure water temperature of the oxygen separator is heated to 40 ℃, switching back to a circulating main path, and entering the operation state of the gas-liquid separation unit;

9) Whether the equipment state has problems (an electrolytic tank, a gas-liquid separation unit and a power supply) is confirmed through an upper monitoring picture, video monitoring or on site, and the equipment state is determined by each professional responsible person;

10 Manually setting a current from the power supply side, recording time;

11 If the current is set with a change value, whether the equipment state has problems (an electrolytic tank, a gas-liquid separation unit and a power supply) needs to be confirmed, and the main confirmation parameters are as follows: system pressure, pressure balance of oxyhydrogen separator, current, voltage and fault alarm information;

12 PID parameters of the pressure balance regulating valve are regulated, so that the hydrogen-oxygen side pressure is always balanced;

13 After the system pressure reaches the set pressure, regulating PID parameters of a system pressure regulating valve to ensure that the system pressure is stabilized within the range of +/-0.2 MPa of the set value;

14 Repeating steps 10), 11).

15 And (3) continuously operating for 30 minutes, determining each technological parameter set value according to actual conditions, and confirming that the hydrogen production device operates normally.

16 After confirmation, the cell current is manually reduced to 0A, and the power supply is turned off.

17 Clicking a shutdown button to stop the hydrogen production control system.

18 And (3) confirming that the valve acts normally, releasing pressure normally by the hydrogen production device, and closing the emptying valve after the pressure is reduced to 0.2 Mpa.

19 After the pure water temperature is reduced to below 40 ℃, the pure water circulating pump is stopped, and the public engineering equipment is sequentially stopped

20 A) restarting, the manual current is given to be gradually increased until the power rises to 50%. Checking whether the equipment state, oxyhydrogen liquid level, system pressure and pure water temperature change and regulating function are normal in the whole process, and if necessary, continuing to optimize control parameters.

21 After the hydrogen production control system is continuously operated for 30min, the power supply is turned off manually, and then the hydrogen production control system is turned off manually to confirm whether the whole process is normal.

22 Steps 20) to 21) are repeated at least once.

B. Automatic start-up operation test

The test procedure was as follows:

3) Switching all valves and pumps of the gas-liquid separation unit to an automatic mode from an integrated station control system picture, and confirming that the purification unit is in a non-linkage mode;

4) Confirming that the process parameter setting is not problematic (the current is initially set to 100A) from the integrated station control system picture;

5) Clicking a start button to check whether each unit of the public engineering equipment is started normally in sequence;

6) After the starting of the public engineering equipment is finished, checking whether the pure water circulating pump is normally started or not from an integral station control system picture, and judging whether the pure water circulating pump has flow or not;

7) Checking whether the pure water temperature of the oxygen separator is less than 40 ℃, switching to a heating bypass when the pure water temperature is less than 40 ℃, starting heating by a pure water heater, stopping heating by the heater after the pure water temperature of the oxygen separator is heated to 40 ℃, switching back to a circulating main path, and entering the operation state of the gas-liquid separation unit;

8) After the liquid separation unit operates, whether the power supply is automatically started or not and whether the power supply outputs the power or not is confirmed;

9) Gradually increasing current from the integrated station control system, keeping the speed consistent with that of the manual operation test until the power rises to 70%, and confirming that the power output of the whole process is normal along with the setting of the HC100 controller;

10 After the operation is performed for 30min, the integrated station control system clicks a stop button to stop;

11 Confirming that the shutdown timing is normal;

and repeating the automatic start-up test for more than two times.

C. Alarm interlocking test for gas-liquid separation unit

The test procedure was as follows:

1) The hydrogen production control cabinet rotates the remote/local knob to the remote;

4) Confirming that the process parameter setting is not problematic from the picture of the integrated station control system;

6) After the starting of the public engineering equipment is finished, checking whether a pure water circulating pump of the hydrogen production device is started or not;

7) Checking whether the pure water temperature of the oxygen separator is less than 40 ℃, switching to a heating bypass when the pure water temperature is less than 40 ℃, starting heating by a pure water heater, stopping heating by the heater after the pure water temperature of the oxygen separator is heated to 40 ℃, switching back to a circulating main circuit, and entering the operation state of the gas-liquid separation unit;

8) After the gas-liquid separation unit of the hydrogen production device operates, whether the power supply is automatically started or not and whether output exists or not is confirmed.

9) The current is gradually increased from the integrated station control system, the speed is consistent with that of the manual operation test until the power is increased to 50%, and the power output of the whole process is confirmed to be normal along with the setting of the HC100 controller.

10 After the hydrogen production device stably operates, an alarm and an interlocking stop are triggered by setting process parameters. The three interlocking actions of stopping (recommended system pressure measurement and pressure balance), venting (recommended oxygen content in hydrogen measurement) and scram need to be tested at least once.

E. full load operation test: the electrolytic tank is gradually lifted to full-load operation, and the operation state of the electrolytic tank and equipment in the whole process is confirmed.

The test procedure was as follows:

9) Gradually increasing current from the integrated station control system, wherein the speed is consistent with that of a manual operation test until the power is increased to 50%;

10 After the hydrogen production device stably operates for 30min, gradually increasing the current (the current rising speed is the same as 50% of the power rising speed), respectively reaching 60%,70%,80% and 90% of the power, ensuring the stable operation for 30min by each power, finally providing the power to 100%, and after each current rising, confirming whether the equipment state has problems (an electrolytic tank, a gas-liquid separation unit and a power supply).

11 Confirm that the shutdown sequence is normal.

If necessary, the test is repeated more than once.

F. purification run test

The test procedure was as follows:

3) Switching the gas-liquid separation unit, all the purification valves and pumps from an integrated station control system picture to an automatic mode, confirming that the purification system is in a non-linkage state and confirming that the regeneration sequence of the drying tower is in a Z1 state;

4) Clicking a start button, and checking whether each unit is normally started from the integrated station control system;

5) Gradually increasing the current until the current reaches 50%, and starting purification (opening an outlet valve of the gas-liquid separation unit) after the gas-liquid separation unit stably operates and the purity of the hydrogen is qualified;

6) Confirming whether the state of the purification equipment has problems or not through an integrated station control system picture, a monitoring video and a site, and determining by each professional responsible person;

7) Confirming that each electric heater is normally started, and adjusting temperature adjusting parameters to keep the temperature within a reasonable range;

8) Regulating a purified outlet pressure regulating valve PID to maintain the purified outlet pressure within a set range (tentative 2.8 MPa);

9) Regulating the PID of the purified regeneration flow regulating valve to ensure that the regeneration flow is stabilized at a set value (the minimum flow is 50 standard);

10 After purification and stable operation for 30min, clicking a stop button to stop.

G. Purification alarm interlock test

The test procedure was as follows:

1) Starting the gas-liquid separation unit equipment to operate;

2) The purification equipment is operated;

3) After the hydrogen production device integrally and stably operates, triggering purification equipment to alarm and stop in an interlocking way or to empty through setting process parameters; the three interlocking actions of stopping and emptying need to be tested at least once;

4) Confirming that the interlocking action of the purifying equipment is normal;

5) Clicking the stop button to stop the machine.

H. SIS system interlock logic test.

The test procedure was as follows: starting the gas-liquid separation unit equipment to operate; after the whole hydrogen production device stably runs, relevant parameter setting is carried out, whether SIF loops respond normally or not is confirmed, a hydrogen production system is stopped or not, whether an SIS system has relevant alarm or not is confirmed, and at least 1 SIF loop is tested; and confirming that the shutdown time sequence is normal.

S4, charging and debugging of the hydrogenation system.

The material feeding debugging of the hydrogenation system is a material feeding test run of the hydrogenation system, and the method sequentially comprises the following testing steps:

1) Buffer tank pressure interlock test: the hydrogen buffer tank is provided with a normally closed pressure switch, when the pressure reaches 3.15MPa, the normally closed node becomes a normally open node, the hydrogen production control loop is cut off, and the hydrogen production is stopped; when the pressure reaches a low pressure value, the control loop is switched on again, and hydrogen production can be started.

2) And the security system is linked.

The test procedure was as follows: starting up the hydrogen production device gas-liquid separation unit; at least one alarm for simulating triggering of a security (fire) system; and confirming whether the hydrogen production system normally responds to shutdown.

3) And (5) station control system joint debugging.

The test process of the station control system simulation joint debugging in the step S2 is the same.

4) And (5) feeding test operation test of the hydrogen production system.

5) Hydrogen substitution: when the hydrogen in the hydrogen storage bottle group is replaced, the pressure is set to be 1.2MPa and then is discharged to be not higher than 0.2MPa, the replacement is carried out for five times, and whether the purity of the hydrogen in the hydrogen storage bottle group meets the standard requirement is measured after the replacement for five times.

The purpose of the hydrogen substitution is to ensure that the purity of the hydrogen after substitution can meet specification requirements (greater than 99.97%).

And (3) filling nitrogen into the hydrogen storage container and the pipeline system, and discharging the nitrogen to not higher than 0.2MPa after the pressure is increased to 1MPa during replacement, so that the oxygen content in the hydrogen storage container and the pipeline system is reduced to a safe range after five times of replacement.

Description of the operation of hydrogen replacement with hydrogen production section-hydrogen buffer tank:

b. Sequentially opening ball valves on an inlet pipeline of a hydrogen buffer tank;

c. Through a manual mode of station control, a pneumatic valve on a pipeline is opened, and at the moment, hydrogen supplied by the water electrolysis hydrogen production pry starts to enter a buffer tank;

d. observing data of a pressure gauge or a pressure sensor at the front end of the buffer tank, and closing the pneumatic valve and a manual valve at the inlet of the buffer tank when the pressure value is more than or equal to 1.2 MPa;

e. stabilizing the pressure for 5 minutes, opening an emptying valve of the buffer tank, observing data of a pressure gauge or a pressure sensor at the front end of the buffer tank, and closing the emptying valve when the pressure value is less than or equal to 0.2 MPa;

f. the above process was repeated 5 times and the process data recorded and after completion the buffer tank inlet manual valve and other related pneumatic and manual valves were closed.

6) The compressor is charged and is tested in a test run and the corresponding hydrogen storage bottle group is subjected to pressurization test, and whether leakage exists is detected after pressure stabilization.

Claims

1. The debugging method of the marine hydrogen production and hydrogenation integrated station is characterized by comprising the following steps of:

s1, preparing before debugging;

s2, single machine debugging: the method comprises the steps of hydrogen production equipment monomer debugging, hydrogenation equipment monomer debugging and hydrogenation linkage debugging;

s3, hydrogen production feeding debugging;

s4, charging and debugging of the hydrogenation system.

2. The method for debugging the hydrogen-producing and hydrogen-adding integrated station for ship according to claim 1, wherein in the step S1, the preparation before debugging includes an electrical function test, a hydrogen-producing rectifying power supply system debugging and a pipeline inspection, and the electrical function test includes the following items:

1) Completing the insulation test of the power cable;

4) Each breaker is in an OFF position, and all fuses are intact;

5) All connecting screws in the cabinet should be firm and have no looseness;

6) The ground resistance test is completed;

7) Testing a UPS power supply;

8) Short circuit inspection of the electric cabinet circuit;

10 The insulation resistance measurement of the electrolytic cell is completed.

3. The method for debugging the hydrogen production and hydrogenation integrated station for the ship according to claim 2, wherein the debugging of the hydrogen production rectifying power supply system comprises the steps of rectifying transformer inspection and rectifying power supply debugging, wherein the rectifying power supply debugging steps are as follows:

4. The method for debugging the marine hydrogen production and hydrogenation integrated station according to claim 2, wherein the pipeline inspection comprises a strength test, an air tightness test and a pipeline purging qualification, wherein the pipeline purging qualification is to set a white board for inspection at an exhaust port of the pipeline, and then purge the pipeline, and no rust or other sundries on the white board are qualified.

5. The method for debugging the hydrogen production and hydrogenation integrated station for the ship according to claim 1, wherein in the step S2, the single body debugging of the hydrogen production equipment comprises the following steps:

4) Cold test run of the hydrogen production device;

5) The gas-liquid separation unit performs alarm interlocking simulation test;

6) Purifying alarm interlocking simulation test;

7) Simulation test of SIS system interlocking logic;

6. The method for debugging the hydrogen production and hydrogenation integrated station for the ship according to claim 1, wherein in the step S2, the single body debugging of the hydrogenation equipment comprises the following steps:

6) And (5) debugging and confirming the cold water machine and the compressor.

7. The method for debugging the hydrogen production and hydrogenation integrated station for the ship according to claim 1, wherein in the step S2, the hydrogen production and hydrogenation linkage debugging comprises buffer tank pressure simulation interlocking test, security system simulation linkage test, station control system simulation joint debugging and emergency stop function simulation test.

8. The method for debugging the integrated hydrogen production and hydrogenation station for the ship according to claim 1, wherein in the step S3, the hydrogen production feeding debugging comprises the steps of replacement pressurization through nitrogen and feeding debugging of a hydrogen production system, the nitrogen is filled into the hydrogen storage container and the pipeline system, the pressure is increased to 1MPa during replacement, then the hydrogen is discharged to not higher than 0.2MPa, and the hydrogen is replaced five times, so that the oxygen content in the hydrogen storage container and the pipeline system is reduced to a safe range.

9. The method for debugging a hydrogen production and hydrogenation integrated station for a ship according to claim 8, wherein the method for debugging the feeding of the hydrogen production system comprises the following steps:

2) Automatically starting up and running a test;

3) Alarming and interlocking test of the gas-liquid separation unit;

5) Purifying and running the test;

6) Purifying alarm interlocking test;

7) SIS system interlock logic test.

10. The method for debugging the hydrogen production and hydrogenation integrated station for the ship according to claim 1, wherein in the step S4, the material feeding and debugging of the hydrogen production and hydrogenation system is a material feeding and test run of the hydrogen production and hydrogenation system, and the method comprises the following test steps in sequence:

2) The security system is linked;

3) Station control system joint debugging;

4) The hydrogen production system is subjected to material feeding test;