Skid-mounted modularized hydrogen production plant comprehensive centralized control system and control method

Abstract

The invention discloses a skid-mounted modularized hydrogen production plant comprehensive centralized control system and control method, and the system comprises a centralized control skid, a pure water and water replenishing device skid, a cooling water device skid, a chilled water device skid, an instrument air system skid and a plurality of groups of hydrogen production units. The pure water and water replenishing device pry, the cooling water device pry, the chilled water device pry and the instrument air system pry are connected with each group of hydrogen production units and provide pure water, cooling water, chilled water and instrument gas for valve control for the hydrogen production units, and control valves are mounted on the pure water and water replenishing device pry, the cooling water device pry, the chilled water device pry and the instrument air system pry; and the centralized control pry is connected with each control valve to control the on-off of each control valve so as to control the whole hydrogen production process. The skid-mounted modularized hydrogen production plant comprehensive centralized control system is simple in structure, does not need to deeply depend on civil engineering construction, and can be quickly mounted and deployed and integrally and quickly carried and transferred.

Description

Technical Field

[0001] The present invention belongs to the technical field of skid-mounted modular green hydrogen production, and relates to a comprehensive centralized control system and control method for a skid-mounted modular hydrogen production plant. Background Art

[0002] During the construction of a hydrogen production plant, the hydrogen production unit needs to be modularized according to its function in order to optimize and reduce the amount of on-site equipment assembly and connection. At the same time, to further reduce the amount of on-site civil engineering construction and improve on-site installation efficiency, the entire hydrogen production system needs to be skid-mounted and prefabricated according to its modules, ultimately achieving rapid on-site deployment and construction. In a hydrogen production plant based on a skid-mounted structural design, a special integrated centralized control system is required that can both integrate the modularized unit subsystems into a unified control platform and meet the requirements of a skid-mounted structural assembly design that can be transported and transferred as a whole. However, currently, no such integrated centralized control system for hydrogen production plants has skid-mounted modularization capabilities. Summary of the Invention

[0003] One purpose of the present invention is to provide a skid-mounted modular hydrogen production plant integrated centralized control system to solve the technical problems of existing conventional hydrogen production plants that are deeply dependent on civil engineering construction, difficult to install and deploy quickly, and unable to be quickly transported and transferred as a whole.

[0004] Another object of the present invention is to provide a comprehensive centralized control method for a skid-mounted modular hydrogen production plant.

[0005] The first technical solution adopted by the present invention is a skid-mounted modular integrated centralized control system for a hydrogen production plant, comprising a centralized control skid, a pure water and water make-up device skid, a cooling water device skid, a chilled water device skid, an instrument air system skid, and multiple hydrogen production units. The pure water and water make-up device skid, the cooling water device skid, the chilled water device skid, and the instrument air system skid are connected to each hydrogen production unit to provide the hydrogen production units with pure water, cooling water, chilled water, and instrument air for valve control. Control valves are installed on the pure water and water make-up device skid, the cooling water device skid, the chilled water device skid, and the instrument air system skid. The centralized control skid is connected to each control valve to control the opening and closing of each control valve.

[0006] The centralized control skid is equipped with a hydrogen production centralized control system, a gas detection and fire alarm system centralized control panel, an industrial monitoring system centralized control panel, an internal intercom system centralized control panel, a comprehensive information centralized display system, an indoor power distribution system, an indoor lighting system, an indoor air conditioner, indoor power sockets and an indoor network system. The indoor power distribution system is connected to the hydrogen production centralized control system, the gas detection and fire alarm system centralized control panel, the industrial monitoring system centralized control panel, the internal intercom system centralized control panel, the comprehensive information centralized display system, the indoor lighting system, the indoor air conditioner, the indoor power sockets and the indoor network system through power cables.

[0007] The hydrogen production unit includes a power supply and control system skid, an electrolyzer skid, and a gas-liquid separation and purification device skid. The power supply and control system skid is connected to the electrolyzer skid and the gas-liquid separation and purification device skid through power lines and signal lines to realize power supply and control of the electrolyzer skid and the gas-liquid separation and purification device skid.

[0008] A power supply and control system skid in a hydrogen production unit is connected to a pure water and water supply device skid, a cooling water device skid, a chilled water device skid, an instrument air system skid and an indoor power distribution system through power cables.

[0009] The hydrogen production centralized control system includes two mutually redundant upper computer monitoring units, which are connected to the control valves on the pure water and make-up water device skid, cooling water device skid, chilled water device skid and instrument air system skid, as well as the power supply and control system skid through signal lines to achieve control of the hydrogen production process.

[0010] Hydrogen gas detectors and fire alarms are installed on the pure water and water make-up device skid, cooling water device skid, chilled water device skid, instrument air system skid and each group of hydrogen production units. These hydrogen gas detectors and fire alarms are connected to the centralized control panel of the gas detection and fire alarm system through signal lines.

[0011] Camera units and internal intercom system branch station field equipment are installed on the pure water and make-up water device skid, cooling water device skid, chilled water device skid, instrument air system skid and each group of hydrogen production units. Each camera unit is connected to the industrial monitoring system centralized control panel through a signal line, and each internal intercom system branch station field equipment is connected to the internal intercom system centralized control panel through a signal line.

[0012] The comprehensive information centralized display system is connected to the hydrogen production centralized control system, the gas detection and fire alarm system centralized control panel, the industrial monitoring system centralized control panel and the internal intercom system centralized control panel through signal lines.

[0013] The second technical solution adopted by the present invention is a comprehensive centralized control method for a skid-mounted modular hydrogen production plant, comprising the following steps:

[0014] Step 1: The power supply and control system skid provides power to the electrolyzer skid, gas-liquid separation and purification device skid, pure water and water supply device skid, cooling water device skid, chilled water device skid, instrument air system skid, and indoor power distribution system. Subsequently, the indoor power distribution system provides power to the hydrogen production centralized control system, gas detection and fire alarm system centralized control panel, industrial monitoring system centralized control panel, internal intercom system centralized control panel, integrated information centralized display system, indoor lighting system, indoor air conditioning, indoor power sockets, and indoor network system, completing system initialization.

[0015] Step 2: The upper computer monitoring unit in the hydrogen production centralized control system establishes communication connections with the control valves on the pure water and water supply device skid, the cooling water device skid, the chilled water device skid, and the instrument air system skid, as well as the power supply and control system skid, to receive status information of each hydrogen production unit group. The gas detection and fire alarm system centralized control panel receives safety information transmitted by each hydrogen gas detector and fire alarm on site. The industrial monitoring system centralized control panel receives video information transmitted by each camera unit on site to achieve real-time monitoring. The internal intercom system centralized control panel establishes connections with the on-site equipment of each internal intercom system branch station to achieve full-area broadcasting and internal intercom functions of the hydrogen production plant. The comprehensive information centralized display system centrally displays status information of the hydrogen production centralized control system, the gas detection and fire alarm system centralized control panel, the industrial monitoring system centralized control panel, and the internal intercom system centralized control panel.

[0016] In step 3, the staff controls the operation of each hydrogen production unit through the upper computer monitoring unit in the hydrogen production centralized control system, and displays the control process through the comprehensive information centralized display system.

[0017] The beneficial effect of the present invention is that a skid-mounted modularized integrated centralized control system for a hydrogen production plant is constructed by means of a centralized control skid, a pure water and water supply device skid, a cooling water device skid, a chilled water device skid, an instrument air system skid and a plurality of hydrogen production units. The structure is simple, does not require deep reliance on civil engineering construction, and can be quickly installed and deployed and quickly transported and transferred as a whole. Control valves are installed on the pure water and water supply device skid, the cooling water device skid, the chilled water device skid and the instrument air system skid, and the centralized control skid is connected to each control valve to realize control of the entire system. The working environment status of the entire hydrogen production plant is monitored by means of a centralized control panel for a gas detection and fire alarm system, a centralized control panel for an industrial monitoring system and a centralized control panel for an internal intercom system, and the full-scene status information of the entire hydrogen production plant is displayed by means of a centralized comprehensive information display system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the integrated centralized control system of the skid-mounted modular hydrogen production plant of the present invention.

[0019] In the figure, 1. Centralized control skid, 101. Hydrogen production centralized control system, 102. Gas detection and fire alarm system centralized control panel, 103. Industrial monitoring system centralized control panel, 104. Internal intercom system centralized control panel, 105. Comprehensive information centralized display system, 106. Indoor power distribution system, 107. Indoor lighting system, 108. Indoor air conditioning, 109. Indoor power sockets, 110. Indoor network system, 2. Pure water and water supply device skid, 3. Cooling water device skid, 4. Chilled water device skid, 5. Instrument air system skid, 6. Hydrogen production unit, 601. Power supply and control system skid, 602. Electrolyzer skid, 603. Gas-liquid separation and purification device skid. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] A skid-mounted modular hydrogen production plant integrated centralized control system, referring to Figure 1 , including a centralized control skid 1, a pure water and water makeup device skid 2, a cooling water device skid 3, a chilled water device skid 4, an instrument air system skid 5 and n groups of hydrogen production units 6, n ≥ 3. The pure water and water makeup device skid 2, the cooling water device skid 3, the chilled water device skid 4 and the instrument air system skid 5 are connected to each group of hydrogen production units 6 to provide the hydrogen production units 6 with pure water, cooling water, chilled water and instrument air for valve control. Control valves are installed on the pure water and water makeup device skid 2, the cooling water device skid 3, the chilled water device skid 4 and the instrument air system skid 5. The centralized control skid 1 is connected to each control valve to control the opening and closing of each control valve.

[0023] The centralized control skid 1 is equipped with a hydrogen production centralized control system 101, a gas detection and fire alarm system centralized control panel 102, an industrial monitoring system centralized control panel 103, an internal intercom system centralized control panel 104, a comprehensive information centralized display system 105, an indoor power distribution system 106, an indoor lighting system 107, an indoor air conditioner 108, an indoor power socket 109 and an indoor network system 110. The indoor power distribution system 106 is connected to the hydrogen production centralized control system 101, the gas detection and fire alarm system centralized control panel 102, the industrial monitoring system centralized control panel 103, the internal intercom system centralized control panel 104, the comprehensive information centralized display system 105, the indoor lighting system 107, the indoor air conditioner 108, the indoor power socket 109 and the indoor network system 110 through power cables.

[0024] The hydrogen production unit 6 includes a power supply and control system skid 601, an electrolytic cell skid 602 and a gas-liquid separation and purification device skid 603. The power supply and control system skid 601 is connected to the electrolytic cell skid 602 and the gas-liquid separation and purification device skid 603 through power lines and signal lines to realize power supply and control of the electrolytic cell skid 602 and the gas-liquid separation and purification device skid 603.

[0025] A power supply and control system skid 601 in a hydrogen production unit 6 is connected to the pure water and water supply device skid 2, the cooling water device skid 3, the chilled water device skid 4, the instrument air system skid 5 and the indoor power distribution system 106 through power cables.

[0026] The hydrogen production centralized control system 101 includes two mutually redundant upper computer monitoring units, which are connected to the control valves on the pure water and water supply device skid 2, cooling water device skid 3, chilled water device skid 4 and instrument air system skid 5, as well as the power supply and control system skid 601 through signal lines to achieve control of the hydrogen production process.

[0027] Example 2

[0028] A skid-mounted modular integrated centralized control system for a hydrogen production plant includes a centralized control skid 1, a pure water and water supply device skid 2, a cooling water device skid 3, a chilled water device skid 4, an instrument air system skid 5, and multiple hydrogen production units 6. The centralized control skid 1 is provided with a hydrogen production centralized control system 101, a gas detection and fire alarm system centralized control panel 102, an industrial monitoring system centralized control panel 103, an internal intercom system centralized control panel 104, a comprehensive information centralized display system 105, an indoor power distribution system 106, an indoor lighting system 107, an indoor air conditioner 108, an indoor power socket 109, and an indoor network system 110. The indoor power distribution system 106 is connected to the hydrogen production centralized control system 101, the gas detection and fire alarm system centralized control panel 102, the industrial monitoring system centralized control panel 103, the internal intercom system centralized control panel 104, the comprehensive information centralized display system 105, the indoor lighting system 107, the indoor air conditioner 108, the indoor power socket 109, and the indoor network system 110 through power cables, respectively, to provide power for these systems.

[0029] The pure water and water makeup skid 2 provides pure water to each hydrogen production unit 6 and replenishes water according to the hydrogen production process requirements. The cooling water skid 3 provides a relatively low-temperature cooling water source and circulation for the cooling cycle of each hydrogen production unit 6. The chilled water skid 4 provides an even lower-temperature chilled water source and circulation for each hydrogen production unit 6. The instrument air system skid 5 provides instrument air for various remote valve controls in each hydrogen production unit 6.

[0030] Control valves are installed on the pure water and make-up water device skid 2, cooling water device skid 3, chilled water device skid 4 and instrument air system skid 5. The hydrogen production centralized control system 101 includes two mutually redundant upper computer monitoring units, which are connected to the control valves on the pure water and make-up water device skid 2, cooling water device skid 3, chilled water device skid 4 and instrument air system skid 5, as well as the power supply and control system skid 601 through signal lines to achieve control of the hydrogen production process.

[0031] The hydrogen production unit 6 includes a power supply and control system skid 601, an electrolytic cell skid 602, and a gas-liquid separation and purification device skid 603. The power supply and control system skid 601 is connected to the electrolytic cell skid 602 and the gas-liquid separation and purification device skid 603 via power cables and signal cables. The power supply and control system skid 601 in one group of hydrogen production units 6 is connected to the pure water and water makeup device skid 2, the cooling water device skid 3, the chilled water device skid 4, the instrument air system skid 5, and the indoor power distribution system 106 via power cables. The power supply and control system skid 601 in this group of hydrogen production units 6 not only provides power and control for its own electrolytic cell skid 602 and the gas-liquid separation and purification device skid 603, but also provides power for the pure water and water makeup device skid 2, the cooling water device skid 3, the chilled water device skid 4, the instrument air system skid 5, and the indoor power distribution system 106. The power supply and control system skid 601 in other groups of hydrogen production units 6 can only provide power and control for its own electrolytic cell skid 602 and the gas-liquid separation and purification device skid 603.

[0032] The main function of the electrolytic cell skid 602 is to produce hydrogen by electrolyzing water in the hydrogen production unit. The main function of the gas-liquid separation and purification device skid is to separate the gas-liquid phases of hydrogen, oxygen and electrolyte in the hydrogen production unit, and to cool, wash and demist the hydrogen and oxygen, as well as to deoxygenate, dry and purify the hydrogen.

[0033] Hydrogen gas detectors and fire alarms are installed on the pure water and water makeup device skid 2, the cooling water device skid 3, the chilled water device skid 4, the instrument air system skid 5 and each group of hydrogen production units 6. These hydrogen gas detectors and fire alarms are connected to the gas detection and fire alarm system centralized control panel 102 through signal lines to realize hydrogen leak detection and fire alarm functions of the hydrogen production plant.

[0034] Camera units and intercom system substations are installed on the pure water and makeup water system skid 2, cooling water system skid 3, chilled water system skid 4, instrument air system skid 5, and each hydrogen production unit 6. Each camera unit is connected to the industrial surveillance system centralized control panel 103 via a signal line, enabling video surveillance of the hydrogen production plant. Each intercom system substation is connected to the internal intercom system centralized control panel 104 via a signal line, enabling plant-wide broadcasting and internal intercom functions.

[0035] The comprehensive information centralized display system 105 is connected to the hydrogen production centralized control system 101, the gas detection and fire alarm system centralized control panel 102, the industrial monitoring system centralized control panel 103 and the internal intercom system centralized control panel 104 through signal lines to realize the comprehensive information centralized display function of the hydrogen production plant.

[0036] Example 3

[0037] The integrated centralized control method for a skid-mounted modular hydrogen production plant includes the following steps:

[0038] Step 1: The power supply and control system skid 601 provides power to the electrolytic cell skid 602, the gas-liquid separation and purification device skid 603, the pure water and water supply device skid 2, the cooling water device skid 3, the chilled water device skid 4, the instrument air system skid 5, and the indoor power distribution system 106. Subsequently, the indoor power distribution system 106 provides power to the hydrogen production centralized control system 101, the gas detection and fire alarm system centralized control panel 102, the industrial monitoring system centralized control panel 103, the internal intercom system centralized control panel 104, the comprehensive information centralized display system 105, the indoor lighting system 107, the indoor air conditioner 108, the indoor power sockets 109, and the indoor network system 110, completing system initialization.

[0039] Step 2: The upper computer monitoring unit in the hydrogen production centralized control system 101 establishes communication connections with the control valves on the pure water and water supply device skid 2, the cooling water device skid 3, the chilled water device skid 4, and the instrument air system skid 5, as well as the power supply and control system skid 601, to receive status information of each group of hydrogen production units. The gas detection and fire alarm system centralized control panel 102 receives safety information transmitted by each hydrogen gas detector and fire alarm on site. The industrial monitoring system centralized control panel 103 receives video information transmitted by each camera unit on site to achieve real-time monitoring. The internal intercom system centralized control panel 104 establishes connections with the on-site equipment of each internal intercom system branch station to realize the full-area broadcast and internal intercom functions of the hydrogen production plant. The comprehensive information centralized display system 105 centrally displays the status information of the hydrogen production centralized control system 101, the gas detection and fire alarm system centralized control panel 102, the industrial monitoring system centralized control panel 103, and the internal intercom system centralized control panel 104.

[0040] In step 3, the staff controls the operation of each hydrogen production unit group through the upper computer monitoring unit in the hydrogen production centralized control system 101 , and displays the control process through the comprehensive information centralized display system 105 .

Claims

1. Skid-mounted modular hydrogen production plant integrated centralized control system, characterized by: The invention comprises a centralized control skid (1), a pure water and water supply device skid (2), a cooling water device skid (3), a chilled water device skid (4), an instrument air system skid (5) and multiple hydrogen production units (6). The pure water and water supply device skid (2), the cooling water device skid (3), the chilled water device skid (4) and the instrument air system skid (5) are connected to each hydrogen production unit (6) to provide the hydrogen production unit (6) with pure water, cooling water, chilled water and instrument air for valve control. Control valves are installed on the pure water and water supply device skid (2), the cooling water device skid (3), the chilled water device skid (4) and the instrument air system skid (5). The centralized control skid (1) is connected to each control valve to control the opening and closing of each control valve.

2. The skid-mounted modular hydrogen production plant integrated centralized control system according to claim 1 is characterized in that: The centralized control skid (1) is provided with a hydrogen production centralized control system (101), a gas detection and fire alarm system centralized control panel (102), an industrial monitoring system centralized control panel (103), an internal intercom system centralized control panel (104), a comprehensive information centralized display system (105), an indoor power distribution system (106), an indoor lighting system (107), an indoor air conditioner (108), an indoor power socket (109) and an indoor network system (110). The indoor power distribution system (106) is respectively connected to the hydrogen production centralized control system (101), the gas detection and fire alarm system centralized control panel (102), the industrial monitoring system centralized control panel (103), the internal intercom system centralized control panel (104), the comprehensive information centralized display system (105), the indoor lighting system (107), the indoor air conditioner (108), the indoor power socket (109) and the indoor network system (110) through power lines.

3. The skid-mounted modular hydrogen production plant integrated centralized control system according to claim 2 is characterized in that: The hydrogen production unit (6) includes a power supply and control system skid (601), an electrolytic cell skid (602) and a gas-liquid separation and purification device skid (603). The power supply and control system skid (601) is connected to the electrolytic cell skid (602) and the gas-liquid separation and purification device skid (603) via a power line and a signal line, thereby realizing power supply and control of the electrolytic cell skid (602) and the gas-liquid separation and purification device skid (603).

4. The skid-mounted modular hydrogen production plant integrated centralized control system according to claim 3 is characterized in that: A power supply and control system skid (601) in a group of the hydrogen production units (6) is connected to a pure water and water supply device skid (2), a cooling water device skid (3), a chilled water device skid (4), an instrument air system skid (5) and an indoor power distribution system (106) via power lines.

5. The skid-mounted modular hydrogen production plant integrated centralized control system according to claim 4 is characterized in that: The hydrogen production centralized control system (101) includes two mutually redundant upper computer monitoring units, which are respectively connected to the control valves on the pure water and water supply device skid (2), the cooling water device skid (3), the chilled water device skid (4) and the instrument air system skid (5), as well as the power supply and control system skid (601) through signal lines to achieve control of the hydrogen production process.

6. The skid-mounted modular hydrogen production plant integrated centralized control system according to claim 2 is characterized in that: The pure water and water replenishment device skid (2), the cooling water device skid (3), the chilled water device skid (4), the instrument air system skid (5) and each group of hydrogen production units (6) are respectively installed with hydrogen gas detectors and fire alarms, and these hydrogen gas detectors and fire alarms are connected to the gas detection and fire alarm system centralized control panel (102) through signal lines.

7. The skid-mounted modular hydrogen production plant integrated centralized control system according to claim 2 is characterized in that: The pure water and water replenishment device skid (2), the cooling water device skid (3), the chilled water device skid (4), the instrument air system skid (5) and each group of hydrogen production units (6) are respectively installed with a camera unit and an internal intercom system branch station field equipment, each camera unit is connected to the industrial monitoring system centralized control panel (103) through a signal line, and each internal intercom system branch station field equipment is connected to the internal intercom system centralized control panel (104) through a signal line.

8. The skid-mounted modular hydrogen production plant integrated centralized control system according to claim 2 is characterized in that: The comprehensive information centralized display system (105) is respectively connected to the hydrogen production centralized control system (101), the gas detection and fire alarm system centralized control panel (102), the industrial monitoring system centralized control panel (103) and the internal intercom system centralized control panel (104) through signal lines.

9. A comprehensive centralized control method for a skid-mounted modular hydrogen production plant, characterized in that: The following steps are involved: Step 1, the power supply and control system skid (601) provides low-voltage power to the electrolytic cell skid (602), the gas-liquid separation and purification device skid (603), the pure water and water supply device skid (2), the cooling water device skid (3), the chilled water device skid (4), the instrument air system skid (5) and the indoor power distribution system (106), and then the indoor power distribution system (106) supplies power to the hydrogen production centralized control system (101), the gas detection and fire alarm system centralized control panel (102), the industrial monitoring system centralized control panel (103), the internal intercom system centralized control panel (104), the comprehensive information centralized display system (105), the indoor lighting system (107), the indoor air conditioner (108), the indoor power socket (109) and the indoor network system (110), completing the system initialization; Step 2, the upper computer monitoring unit in the hydrogen production centralized control system (101) establishes a communication connection with the control valves on the pure water and water supply device skid (2), the cooling water device skid (3), the chilled water device skid (4), and the instrument air system skid (5), as well as the power supply and control system skid (601), to receive the status information of each group of hydrogen production units, the gas detection and fire alarm system centralized control panel (102) receives the safety information transmitted by each hydrogen gas detector and fire alarm on site, and the industrial monitoring system centralized control panel (103) receives the video information transmitted by each camera unit on site to achieve real-time monitoring; the internal intercom system centralized control panel (104) establishes a connection with the on-site equipment of each internal intercom system branch station to realize the full-area broadcast and internal intercom functions of the hydrogen production plant, and the comprehensive information centralized display system (105) centrally displays the status information of the hydrogen production centralized control system (101), the gas detection and fire alarm system centralized control panel (102), the industrial monitoring system centralized control panel (103) and the internal intercom system centralized control panel (104); In step 3, the staff controls the operation of each hydrogen production unit through the upper computer monitoring unit in the hydrogen production centralized control system (101), and displays the control process through the comprehensive information centralized display system (105).

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