CN108952861A - The device and method of hydrogen boosting bed recovery waste heat power generation in the working medium that liquefies - Google Patents

The device and method of hydrogen boosting bed recovery waste heat power generation in the working medium that liquefies Download PDF

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CN108952861A
CN108952861A CN201810579212.8A CN201810579212A CN108952861A CN 108952861 A CN108952861 A CN 108952861A CN 201810579212 A CN201810579212 A CN 201810579212A CN 108952861 A CN108952861 A CN 108952861A
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hydrogen
heat
bed
level
heat exchanger
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CN108952861B (en
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贾鹏
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Shanghai Ke Laipu Energy Technology Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00General layout or general methods of operation of complete plants
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/10Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K27/00Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating

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  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

The present invention relates to a kind of device and method of hydrogen boosting bed recovery waste heat power generation in liquefaction working medium, device includes expanding machine, generator, mixing gasifying device, boosting bed, heat exchanger and throttling expansion separator.The hydrogen outlet of throttling expansion separator is connected to boosting bed, and boosting bed is connected to mixing gasifying device.Throttling expansion separator is connected to mixing gasifying device by liquid pump and heat exchanger, and the outlet of mixing gasifying device is connected to throttling expansion separator inlet by expanding machine.High-temperature residual heat gas piping is connected to the high-temperature residual heat gas access of boosting bed, and the waste heat gas vent for the bed that boosts connects heat exchanger by low temperature exhaust heat gas piping.The gaseous mixture of hydrogen and working medium after heating enters expander acting, drives electrical power generators, and hydrogen and working medium circulation use.The present invention makes full use of the waste heat of industrial waste gas, and the hydrogen and Working medium gas driving expanding machine acting for generating certain pressure drive electrical power generators, is beneficial to energy conservation emission reduction, increases economic efficiency.

Description

The device and method of hydrogen boosting bed recovery waste heat power generation in the working medium that liquefies
Technical field
The invention belongs to heat recovery technology fields, are related to a kind of hydrogen boosting bed recovery waste heat power generation in liquefaction working medium Method and apparatus.
Background technique
The energy is the important material base that the mankind depend on for existence and development, the energy consumption in industry rapid development, global range Under the background of raising, energy shortage and greenhouse effects aggravation, development low-carbon environment-friendly, environmentally friendly economy become inevitable Selection.Energy-saving and emission-reduction, development and utilization power-saving technology be called after coal, petroleum, natural gas and water power " the 5th kind often Advise the energy ", this is both to mitigate the long-range needs of greenhouse effects, reduction thermal pollution, protection environment, and alleviation energy supply is tight The current demand for opening, realizing sustainable development, is finally reached the coordinated development of resource, environment, economy, society.Current China's warp Ji is in the period of growing continuously and fast, and energy shortage problem has directly affected the production of all trades and professions, develop a circular economy, Economizing economy becomes the thing of the task of top priority.In recent years, emerging cogeneration technology is with its high-new environmental protection, country of coincideing The characteristics such as the requirement of energy-saving and emission-reduction industrial policy, application field is very wide, and there is a huge market demand potential.
Currently at least waste heat of the heat of half in a variety of manners is directly discharged in atmosphere in the industrial production, this It is discharged a bit, the production cost that the heat utilized not only increases enterprise is not added, and environment can be caused seriously to pollute, be unfavorable for The benign development of economic society.
Summary of the invention
The object of the present invention is to provide a kind of device of hydrogen boosting bed recovery waste heat power generation in liquefaction working medium, abundant land productivities With the various high-temperature gas waste heats such as equipment tail gas, utilization rate of waste heat is improved, it is a further object of the present invention to provide more than a kind of utilization The method that the device of heat power generation carries out hydrogen boosting bed recovery waste heat power generation in liquefaction working medium.
The technical scheme is that the device that hydrogen boosting bed recovery waste heat generates electricity in liquefaction working medium, including more than high temperature Hot gas pipeline, low temperature exhaust heat gas piping, expanding machine and generator, the expanding machine are connected with generator coaxle, and device is set There are mixing gasifying device, boosting bed, heat exchanger, throttling expansion separator and liquid pump.Throttling expansion separator is equipped with mixed gas Entrance, hydrogen outlet and liquid outlet, hydrogen outlet are equipped with hydrogen filtration film.The boosting bed is equipped with low-temp low-pressure hydrogen and enters Mouth, high temperature and pressure hydrogen outlet, high-temperature residual heat gas access and waste heat gas vent, the mixing gasifying device enter equipped with hydrogen Mouth, liquid entrance and mixed gas outlet.The heat exchanger is equipped with waste heat gas access, low temperature exhaust heat gas vent, liquid work The tube side import of matter and tube side outlet;The hydrogen outlet of the throttling expansion separator is connected to the low-temp low-pressure hydrogen of boosting bed The high temperature and pressure hydrogen outlet of entrance, the boosting bed is connected to the hydrogen inlet of mixing gasifying device.The throttling expansion separation The liquid outlet of device is connected to the tube side import of heat exchanger by liquid pump, and the tube side outlet of heat exchanger is connected to mixing gasifying device Liquid entrance.The mixed gas outlet of the mixing gasifying device is connected to the gaseous mixture of throttling expansion separator by expanding machine Body entrance;The high-temperature residual heat gas piping is connected to the high-temperature residual heat gas access of boosting bed, the waste hot air of the boosting bed Body exports the low temperature exhaust heat gas access that heat exchanger is connected to by low temperature exhaust heat gas piping.
The boosting bed includes heat exchange center and boosting bed structure;Heat exchange center is equipped with high-temperature residual heat gas access, waste heat Gas vent, first-class heat exchanger, secondary heat exchanger, three-level heat exchanger, level-one hydrogen heat exchanger and second level hydrogen heat exchanger;Boosting Bed is equipped with hydrogen detector, and the outside for the bed that boosts is surrounded by nitrogen-filled seal protective cover;High-temperature residual heat gas access passes sequentially through level-one Heat exchanger, secondary heat exchanger and three-level heat exchanger are connected to waste heat gas vent;It is anti-that every group of boosting bed structure is respectively equipped with No. 1 hydrogen Bed, No. 2 hydrogen reaction beds, No. 3 hydrogen reaction beds, surge tank and hydrogen pump are answered, No. 1 hydrogen reaction bed, No. 2 hydrogen reaction beds and No. 3 hydrogen are anti- Bed is answered to be respectively equipped with heat transferring medium entrance, heat transferring medium outlet, low pressure hydrogen entrance and high pressure hydrogen outlet;High pressure hydrogen outlet Equipped with filter membrane and valve, low pressure hydrogen entrance is equipped with valve.High pressure hydrogen outlet is connected to high temperature by high pressure hydrogen branch pipe High pressure hydrogen outlet, low-temp low-pressure hydrogen inlet connect low pressure hydrogen entrance by low pressure hydrogen branch pipe, surge tank.First group of liter The heat transferring medium outlet of No. 1 hydrogen reaction bed, No. 2 hydrogen reaction beds and No. 3 hydrogen reaction beds of press structure is connected respectively to triple valve, One way outlet of triple valve is connected to heat transferring medium entrance through hydrogen pump, first-class heat exchanger and triple valve, and another way is through hydrogen pump, one Grade hydrogen heat exchanger and triple valve are connected to heat transferring medium entrance.No. 1 hydrogen reaction bed, No. 2 hydrogen of second group of boosting bed structure are anti- The outlet of the heat transferring medium of bed and No. 3 hydrogen reaction beds is answered to be connected respectively to four-way valve, one way outlet of four-way valve is changed through hydrogen pump, second level Hot device and four-way valve are connected to heat transferring medium entrance, are connected to heat exchange through hydrogen pump, level-one hydrogen heat exchanger and four-way valve all the way Medium inlet, third road are connected to heat transferring medium entrance through hydrogen pump, second level hydrogen heat exchanger and four-way valve.Third group boosting bed The heat transferring medium outlet of No. 1 hydrogen reaction bed, No. 2 hydrogen reaction beds and No. 3 hydrogen reaction beds of structure is connected respectively to triple valve, threeway One way outlet of valve is connected to heat transferring medium entrance through hydrogen pump, three-level heat exchanger and triple valve, all the way through hydrogen pump, second level hydrogen Heat exchanger and triple valve are connected to heat transferring medium entrance.
No. 1 hydrogen reaction bed, No. 2 hydrogen reaction beds and No. 3 hydrogen reaction beds are added with metal hydride, the metal respectively Hydride include Rare Earth metal hydride or other be the mixture of metal hydride or both.
The boosting bed structure is single-stage or multistage, often adds first class boost bed, and level-one heat exchange is accordingly added at heat exchange center Device and level-one hydrogen heat exchanger.The heat absorption of difference group boosting bed structure is the same or different, wherein the type of each group boosting bed structure Formula, the type of structure and metal hydrogen storage material and carrying capacity are identical or different, each hydrogen reaction bed in every group of boosting bed structure Pattern, the type of structure and metal hydrogen storage material and carrying capacity it is identical or different, No. 1 hydrogen reaction bed in three groups of boosting bed structures A, No. 2 hydrogen reaction bed B, No. 3 hydrogen reaction bed C weight and volume may be the same or different.The tank of the reaction bed of boosting bed Body is made of metal or nonmetallic materials, is provided with inside holding or external thermal insulation or inside and outside Insulation, connects each equipment, list The pipeline of member may be provided with inside holding or external thermal insulation or inside and outside Insulation.Heat transferring medium includes hydrogen, inert gas or property The stable liquids and gases of matter, when using non-hydrogen heat transferring medium, filter membrane can separate hydrogen and non-hydrogen heat transferring medium.
The method for power generation by waste heat of hydrogen boosting bed recovery waste heat power generator, process are as follows: utilize in present invention liquefaction working medium Gas heating boosting bed with high-temperature residual heat, generates high pressure hydrogen;The high pressure hydrogen with from throttling expansion separator simultaneously Liquefaction working medium mixing after the pressurization of liquid liquid pump is sent to mixing gasifying device, and low-temperature liquefaction working medium is existed by hydrogen and waste heat gas Gasify in mixing gasifying device;Hydrogen and the gaseous mixture of working medium enter expander acting, drive electrical power generators;Expanding machine is done Mixture pressure and temperature decline, separate into throttling expansion separator after function;Gaseous mixture in throttling expansion separator into One step expansion cooling, so that gas working medium all liquefies and separates with gaseous hydrogen realization;The liquefaction working medium warp of liquid phase after separation The recycling of mixing gasifying device is entered after crossing the pressurization of liquid liquid pump;Hydrogen after separation enters after hydrogen filtration film to be risen Press, hydrogen are recycled.
The course of work of boosting bed are as follows: high temperature heat transferring medium is through high-temperature residual heat gas access, successively through first-class heat exchanger, two Grade heat exchanger and three-level heat exchanger to waste heat gas vent enter heat exchanger;Boosting bed is divided into three groups of upper, middle and lower boosting bed knot Structure, the respectively first order boosting bed structure, second level boosting bed structure, third level boosting bed structure, every grade of boosting bed structure are set There are 3 hydrogen reaction beds: No. 1 hydrogen reaction bed, No. 2 hydrogen reaction beds, No. 3 hydrogen reaction beds;In terms of the stable hydrogen release of boosting bed realization Consider, whole work process setting is divided into three phases, hydrogen release stage, and cooling and suction hydroformylation stage heats up the hydrogen release preparation stage;
The hydrogen release stage:
The hydrogen heat exchanging pipe of first order boosting bed structure makes first order hydrogen reaction bed and first-class heat exchanger pipe by valve transfer Cheng Liantong supplies heat by the high-temperature gas passed through from first-class heat exchanger shell side, so that first order hydrogen reaction bed is absorbed heat and hold It is continuous to release high pressure hydrogen, the hot-gas temperature decline of first-class heat exchanger out;The high pressure hydrogen of first order hydrogen reaction bed goes out simultaneously Valve at mouthful is opened, and the high pressure hydrogen of releasing enters high temperature and pressure hydrogen outlet from high pressure hydrogen outlet;
The second level boosting bed structure hydrogen heat exchanging pipe by valve transfer make second level hydrogen reaction bed respectively with secondary heat exchange The tube side of device is connected to the tube side of level-one hydrogen heat exchanger, the high-temperature gas by passing through from secondary heat exchanger shell side and level-one hydrogen The high-temperature hydrogen that the shell side of heat exchanger passes through supplies heat, so that second level hydrogen reaction bed is absorbed heat and continues to release High Pressure Hydrogen Gas, out the hot-gas temperature decline of secondary heat exchanger, out the high-temperature hydrogen temperature decline of level-one hydrogen heat exchanger shell pass;Simultaneously The valve in second level hydrogen reaction bed high pressure hydrogen exit is opened, and the high pressure hydrogen of releasing enters high temperature height from high pressure hydrogen outlet Press hydrogen outlet;
The hydrogen heat exchanging pipe of third level boosting bed structure makes third level hydrogen reaction bed exchange heat respectively with three-level by valve transfer The tube side of device is connected to the tube side of second level hydrogen heat exchanger, the high-temperature gas by passing through from three-level heat exchanger shell pass and second level hydrogen The high-temperature hydrogen that the shell side of heat exchanger passes through supplies heat, so that third level hydrogen reaction bed absorbs heat and continues to release High Pressure Hydrogen Gas, out the hot-gas temperature decline of three-level heat exchanger, out the high-temperature hydrogen temperature decline of second level hydrogen heat exchanger shell pass;Simultaneously The valve in third level hydrogen reaction bed high pressure hydrogen exit is opened, and the high pressure hydrogen of releasing enters high temperature height from high pressure hydrogen outlet Press hydrogen outlet;
Cooling and suction hydroformylation stage:
Enter cooling after the hydrogen release stage and inhale hydroformylation stage, first closes the valve in high pressure hydrogen exit;
The hydrogen heat exchanging pipe of first order boosting bed structure makes first order hydrogen reaction bed and level-one hydrogen exchange heat by valve transfer The shell side of device is connected to, and is exchanged heat with the low temperature hydrogen passed through from the tube side of level-one hydrogen heat exchanger, first will be at the end of the hydrogen release stage Sensible heat transfer gives second level hydrogen reaction bed, and the decline of first order hydrogen reaction bed temperature starts to inhale hydrogen, at this moment opens low pressure hydrogen entrance The valve at place, use when the same heat transfer that will be released when inhaling hydrogen by heat exchanging pipe is to second level hydrogen reaction bed hydrogen release;
The hydrogen heat exchanging pipe of second level boosting bed structure makes second level hydrogen reaction bed and second level hydrogen exchange heat by valve transfer The shell side of device is connected to, and is exchanged heat with the low temperature hydrogen passed through from the tube side of second level hydrogen heat exchanger, first will be at the end of the hydrogen release stage Sensible heat transfer gives third level hydrogen reaction bed, and hydrogen reaction bed temperature decline in the second level starts to inhale hydrogen, at this moment opens low pressure hydrogen entrance The valve at place, use when the same heat transfer that will be released when inhaling hydrogen by heat exchanging pipe is to third level hydrogen reaction bed hydrogen release;
It heats up the hydrogen release preparation stage:
Enter the heating hydrogen release preparation stage after cooling and suction hydroformylation stage, is first shut off low pressure hydrogen imported valve;Then, it changes Pipe line outlet valve is fully closed, and the valve of heat transferring medium inlet is micro- to be opened, and switching is communicated to: first order hydrogen reaction bed is changed with level-one Hot device tube side connection;Second level hydrogen reaction bed is connected to the tube side of the tube side of secondary heat exchanger and level-one hydrogen heat exchanger;Third Grade hydrogen reaction bed is connected to the tube side of the tube side of three-level heat exchanger and second level hydrogen heat exchanger;Pressure in reaction bed is risen to and changed Pipe line pressure is identical;This is boost process;
Then, heat transferring medium outlet valve is micro- opens, and switching is communicated to: first order boosting bed structure and first-class heat exchanger tube side connect It is logical;Second level boosting bed structure is connected to the tube side of the tube side of secondary heat exchanger and level-one hydrogen heat exchanger;Third level boosting bed Structure is connected to the tube side of the tube side of three-level heat exchanger and second level hydrogen heat exchanger;Heat exchange cycle circuit is formed, it will be in reaction bed Temperature is increased to the first order, the second level, the third level;This is temperature-rise period;
Finally, start pre- hydrogen release process in hydrogen reaction bed, and it is micro- to open high pressure hydrogen outlet valve, export high pressure hydrogen;With hydrogen release Increase, high pressure hydrogen outlet valve, heat transferring medium outlet valve, heat transferring medium in heating hydrogen release preparation stage hydrogen reaction bed Inlet valve aperture is continuously increased;In this correspondingly with the high pressure hydrogen outlet in hydrogen release stage hydrogen reaction bed another in level-one Valve, heat transferring medium outlet valve, heat transferring medium inlet valve aperture are constantly reduced;Finally, the hydrogen of heating hydrogen release preparation stage Reaction bed enters the hydrogen release stage, and the hydrogen reaction bed in former hydrogen release stage enters cooling and suction hydroformylation stage.The gas of high-temperature residual heat Including industrial 300~800 DEG C of high-temperature flue gas.Working medium is ethane, nitrogen, propane and butane, other liquefiable gases Protection scope of the present invention is also belonged to as working medium.
The device and method of hydrogen boosting bed recovery waste heat power generation, make full use of industrial waste gas in present invention liquefaction working medium Waste heat, heating boosting bed make the hydrogen of its hydrogen release generation certain pressure, and the low temperature liquid working medium that gasifies;Then using with certain Hydrogen and Working medium gas the driving expanding machine of pressure do work and generator are driven to generate electricity, and are beneficial to energy conservation emission reduction, improve warp Ji benefit.
Detailed description of the invention
Fig. 1 is the flow diagram of present invention device of hydrogen boosting bed recovery waste heat power generation in liquefaction working medium;
Fig. 2 is the working principle diagram of boosting bed;
Wherein: 1-mixing gasifying device, 2-expanding machines, 3-boosting beds, 4-throttling expansion separators, 5-liquid pumps, 6-hydrogen Gas filter membrane, 7-generators, 8-heat exchangers, the outlet of 42-heat transferring mediums, 47-high-temperature residual heat gas accesses, 50-waste hot airs Body outlet, 53-high temperature and pressure hydrogen outlets, 54-low-temp low-pressure hydrogen inlets, 61-triple valves, No. 1 67-valves, A-hydrogen Reaction bed, No. 2 hydrogen reaction beds of B-, No. 3 hydrogen reaction beds of C-, 80-nitrogen-filled seal protective covers, 82-second level hydrogen heat exchangers, 83-surge tanks, 87-heat transferring medium entrances, 90-four-way valves, 91-first-class heat exchangers, 92-secondary heat exchangers, 93-three-levels Heat exchanger, 94-level-one hydrogen heat exchangers, 101-hydrogen detectors, 108-low pressure hydrogen entrances, 109-high pressure hydrogens go out Mouthful.
Specific embodiment
Below with reference to embodiment and attached drawing, the present invention is described in detail.The scope of protection of the present invention is not limited to the embodiment, Those skilled in the art make any change within the scope of the claims and also belong to the scope of protection of the invention.
Embodiment 1
The device of hydrogen boosting bed recovery waste heat power generation in present invention liquefaction working medium, including more than high-temperature residual heat gas piping, low temperature Hot gas pipeline, expanding machine 2, generator 7, mixing gasifying device 1, boosting bed 3, throttling expansion separator 4 and liquid pump 5, expansion Machine is connected with generator coaxle.Throttling expansion separator is equipped with mixed gas entrance, hydrogen outlet and liquid outlet, hydrogen outlet Equipped with hydrogen filtration film 6.The bed that boosts is equipped with low-temp low-pressure hydrogen inlet 54, high temperature and pressure hydrogen outlet 53, high-temperature residual heat gas Entrance 47 and waste heat gas vent 50.Mixing gasifying device is equipped with hydrogen inlet, liquid entrance and mixed gas outlet.Heat exchanger is set Have a surplus heater gas inlet port, low temperature exhaust heat gas vent, the tube side import of liquid refrigerant and tube side outlet.Throttling expansion separator Hydrogen outlet is connected to the low-temp low-pressure hydrogen inlet of boosting bed, and the high temperature and pressure hydrogen outlet for the bed that boosts is connected to mixing gasifying The hydrogen inlet of device.The liquid outlet of throttling expansion separator connects the tube-side inlet of heat exchanger by liquid pump, heat exchanger Tube side exports the liquid entrance for being connected to mixing gasifying device, and the mixed gas outlet of mixing gasifying device is connected to section by expanding machine The mixed gas entrance of stream expansion separator.High-temperature residual heat gas piping is connected to the high-temperature residual heat gas access 47 of boosting bed, The waste heat gas vent 50 of boosting bed connects low temperature exhaust heat gas piping, and low temperature exhaust heat gas piping connects more than the low temperature of heat exchanger Heater gas inlet port.
Boosting bed 3 includes heat exchange center 76, boosting bed structure as shown in Figure 2.Heat exchange center 76 is equipped with high-temperature residual heat gas Entrance 47, waste heat gas vent 50, first-class heat exchanger 91, secondary heat exchanger 92, three-level heat exchanger 93, level-one hydrogen heat exchanger 94 With second level hydrogen heat exchanger 82.The bed that boosts is equipped with hydrogen detector 101, and the outside for the bed that boosts is surrounded by nitrogen-filled seal protective cover 80. High-temperature residual heat gas access 47 passes sequentially through first-class heat exchanger 91, secondary heat exchanger 92 and three-level heat exchanger 93 and is connected to waste hot air Body outlet 50.Every group of boosting bed structure is respectively equipped with No. 1 hydrogen reaction bed A, No. 2 hydrogen reaction bed B, No. 3 hydrogen reaction bed C, surge tanks 83 and 95, No. 1 hydrogen reaction bed of hydrogen pump, No. 2 hydrogen reaction beds and No. 3 hydrogen reaction beds be respectively equipped with heat transferring medium entrance 87, heat exchange Media outlet 42, low pressure hydrogen entrance 108 and high pressure hydrogen outlet 109.High pressure hydrogen outlet is equipped with filter membrane and valve, low pressure Hydrogen inlet is equipped with valve.High pressure hydrogen outlet 109 is connected to high temperature and pressure hydrogen outlet by high pressure hydrogen branch pipe, and low temperature is low Hydrogen inlet is pressed to connect low pressure hydrogen entrance 108 by low pressure hydrogen branch pipe, surge tank 83.No. 1 of first group of boosting bed structure The heat transferring medium outlet 42 of hydrogen reaction bed, No. 2 hydrogen reaction beds and No. 3 hydrogen reaction beds is connected respectively to triple valve 61, triple valve one Way outlet is connected to heat transferring medium entrance 87 through hydrogen pump 95, first-class heat exchanger 91 and triple valve, and another way is through hydrogen pump 95, one Grade hydrogen heat exchanger 94 and triple valve are connected to heat transferring medium entrance 87.No. 1 hydrogen reaction bed of second group of boosting bed structure, No. 2 The heat transferring medium of hydrogen reaction bed and No. 3 hydrogen reaction beds outlet 42 is connected respectively to four-way valve 90, and one way outlet of four-way valve is through hydrogen Pump 95, secondary heat exchanger 92 and four-way valve are connected to heat transferring medium entrance 87, all the way through hydrogen pump 95, level-one hydrogen heat exchanger 94 It is connected to heat transferring medium entrance with four-way valve, third road is connected to and changes through hydrogen pump 95, second level hydrogen heat exchanger 82 and four-way valve Thermal medium entrance.The heat transferring medium of third group boosting No. 1 hydrogen reaction bed of bed structure, No. 2 hydrogen reaction beds and No. 3 hydrogen reaction beds goes out Mouth 42 is connected respectively to triple valve 61, and one way outlet of triple valve is connected to and changes through hydrogen pump 95, three-level heat exchanger 93 and triple valve Thermal medium entrance 87 is connected to heat transferring medium entrance through hydrogen pump 95, second level hydrogen heat exchanger 82 and triple valve all the way.
The present embodiment is boosted by three-level for bed structure, and the bed structure that boosts in practical operation is single-stage or multistage, is often added First-class heat exchanger and level-one hydrogen heat exchanger are accordingly added in first class boost bed, heat exchange center.The heat absorption of difference group boosting bed structure It is the same or different, wherein the type of each group boosting pattern of bed structure, structure and metal hydrogen storage material it is identical with carrying capacity or Difference, the pattern of each hydrogen reaction bed, the type of structure and metal hydrogen storage material and carrying capacity phase in every group of boosting bed structure With or it is different, No. 1 hydrogen reaction bed A in three groups of boosting bed structures, No. 2 hydrogen reaction bed B, No. 3 hydrogen reaction bed C weight and volume can With identical, can also be different.The tank body of the reaction bed of boosting bed is made of metal or nonmetallic materials, is provided with inside holding or outer Heat preservation or inside and outside Insulation, connect each equipment, the pipeline of unit may be provided with inside holding or external thermal insulation or inside and outside guarantor Warm measure.Heat transferring medium includes hydrogen, inert gas or the stable liquids and gases of property, when using non-hydrogen heat transferring medium, The filter membrane of high pressure hydrogen outlet setting can separate hydrogen and non-hydrogen heat transferring medium.
The method of hydrogen boosting bed recovery waste heat power generation, process are as follows: heated using high-temperature residual heat in present invention liquefaction working medium Boost bed 3, makes its hydrogen release to generate the high pressure hydrogen of 200 DEG C, 3.5MPa;High pressure hydrogen is sent to mixing gasifying by hydrogen inlet Device 1.Come to -81 DEG C of throttling expansion separator 4,0.15MPa liquid ethane, is pressurized to -81 DEG C, 3.5MPa entrance through liquid pump Mixing gasifying is entered by entrance after the tube side of heat exchanger, with the waste heat medium indirect heat exchange in heat exchanger shell pass and partial gasification Device is mixed with the high pressure hydrogen gasification for entering mixing gasifying device.Mixing gasifying device by mixed gas outlet come out 150 DEG C, The high pressure hydrogen of 3.5MPa and the gaseous mixture of ethane enter 7 expansion work of expanding machine, are expanded into 0.4MPa, after -45 DEG C, low pressure The gaseous mixture of hydrogen and ethane gas enters throttling expansion separator 4;In throttling expansion separator, low pressure gaseous mixture is further swollen It is swollen to freeze to 0.15MPa, so that gaseous ethane all liquefaction and is separated with gaseous hydrogen realization;Liquid phase -81 after separation DEG C, the liquefied ethane of 0.15MPa the recycling of mixing gasifying device 1 is entered after liquid pump 5 is pressurized to 3.5MPa;Gas phase- 81 DEG C, the hydrogen of 0.15MPa enter boosting bed 3 after hydrogen filtration film 6, for inhaling hydrogen;The boosting bed of hydrogen saturation is inhaled by outer The high-temperature residual heat on boundary heats, and hydrogen release generates the high pressure hydrogen of 200 DEG C, 3.5MPa;Repeat the above cyclic process.High-temperature residual heat is through adding 210 DEG C are cooled to after heat boosting bed, heat exchanger is sent to and further utilizes, finally cool to 20 DEG C of outlets.
The course of work of boosting bed are as follows: high temperature heat transferring medium is through high-temperature residual heat gas access 47, successively through first-class heat exchanger 91, secondary heat exchanger 92 and three-level heat exchanger 93 arrive waste heat gas vent 50 into heat exchanger 8.Boosting bed is divided into upper, middle and lower three Group boosting bed structure, respectively first order boosting bed structure, second level boosting bed structure, third level boosting bed structure, every grade rises Press structure is equipped with 3 hydrogen reaction beds: No. 1 hydrogen reaction bed A, No. 2 hydrogen reaction bed B, No. 3 hydrogen reaction bed C.It is realized from boosting bed steady From the aspect of determining hydrogen release, whole work process setting is divided into three phases, hydrogen release stage, and cooling and suction hydroformylation stage, heating are put The hydrogen preparation stage.Assuming that then working sequence arranges recycle for one for every 6 minutes a length of 2 minutes when each stage.
The hydrogen release stage:
The hydrogen heat exchanging pipe of first order boosting bed structure makes first order hydrogen reaction bed and first-class heat exchanger 91 by valve transfer Tube side connection, by (600 DEG C) the supply heats of high-temperature gas passed through from 91 shell side of first-class heat exchanger, makes first order hydrogen reaction bed exist Heat is absorbed at 500 DEG C and continues to release the high pressure hydrogen of 3.5MPa, and the hot-gas temperature of first-class heat exchanger 91 is down to 510 out ℃;The valve at the high pressure hydrogen outlet 109 of first order hydrogen reaction bed is opened simultaneously, and the high pressure hydrogen of releasing goes out from high pressure hydrogen Mouth 109 enters high temperature and pressure hydrogen outlet 53.
The second level boosting bed structure hydrogen heat exchanging pipe by valve transfer make second level hydrogen reaction bed respectively with second level The tube side of heat exchanger 92 is connected to the tube side of level-one hydrogen heat exchanger 94, by the high-temperature gas passed through from 92 shell side of secondary heat exchanger (350 DEG C < t < 500 DEG C) supply heats of high-temperature hydrogen that the shell side of (510 DEG C) and level-one hydrogen heat exchanger 94 passes through, make the second level Hydrogen reaction bed absorbs heat at 350 DEG C and continues to release the high pressure hydrogen of 3.5MPa, out the high-temperature gas of secondary heat exchanger 82 Temperature is down to 350 DEG C, and the high-temperature hydrogen temperature of 94 shell side of level-one hydrogen heat exchanger is down to 350 DEG C out;Second level hydrogen reaction simultaneously The height of bed presses the valve at hydrogen outlet 109 to open, and the high pressure hydrogen of releasing enters high temperature and pressure hydrogen from high pressure hydrogen outlet 109 Outlet 53.
The third level boosting bed structure hydrogen heat exchanging pipe by valve transfer make third level hydrogen reaction bed respectively with three-level The tube side of heat exchanger 93 is connected to the tube side of second level hydrogen heat exchanger 82, by the high-temperature gas passed through from 93 shell side of three-level heat exchanger The high-temperature hydrogen (200 < t < 350 DEG C) that the shell side of (350 DEG C) and second level hydrogen heat exchanger 82 passes through supplies heat, so that the third level Hydrogen reaction bed absorbs heat at 200 DEG C and continues to release the high pressure hydrogen of 3.5MPa, out the high-temperature gas of three-level heat exchanger 93 Temperature is down to 210 DEG C, and the high-temperature hydrogen temperature of 82 shell side of second level hydrogen heat exchanger is down to 200 DEG C out.Third level hydrogen reaction simultaneously The height of bed presses the valve at hydrogen outlet 109 to open, and the high pressure hydrogen of releasing enters high temperature and pressure hydrogen from high pressure hydrogen outlet 109 Outlet 53.
Cooling and suction hydroformylation stage:
Enter cooling after the hydrogen release stage and inhale hydroformylation stage, first closes the valve at high pressure hydrogen outlet 109;
The hydrogen heat exchanging pipe of first order boosting bed structure makes first order hydrogen reaction bed and level-one hydrogen exchange heat by valve transfer The shell side of device 94 is connected to, with the low temperature hydrogen that passes through from the tube side of level-one hydrogen heat exchanger 94 (from the in the hydrogen release stage Second level hydrogen reaction bed) heat exchange, first give the sensible heat transfer at the end of the hydrogen release stage to second level hydrogen reaction bed, first order hydrogen reaction bed After temperature is down to 350 DEG C, start to inhale hydrogen, at this moment open the valve at low pressure hydrogen entrance 108, will equally be inhaled by heat exchanging pipe The use when heat transfer released when hydrogen is to second level hydrogen reaction bed hydrogen release.
The hydrogen heat exchanging pipe of second level boosting bed structure makes second level hydrogen reaction bed and second level hydrogen by valve transfer The shell side of heat exchanger 82 is connected to, and (is come from the hydrogen release stage with the low temperature hydrogen passed through from the tube side of second level hydrogen heat exchanger 82 Third level hydrogen reaction bed) heat exchange, first give the sensible heat transfer at the end of the hydrogen release stage to third level hydrogen reaction bed, second level hydrogen is anti- After answering bed tempertaure to be down to 200 DEG C, start to inhale hydrogen, at this moment opens the valve at low pressure hydrogen entrance 108, equally pass through heat exchanging pipe Use when by the heat transfer released when inhaling hydrogen to third level hydrogen reaction bed hydrogen release.
It heats up the hydrogen release preparation stage:
Enter the heating hydrogen release preparation stage after cooling and suction hydroformylation stage, is first shut off low pressure hydrogen imported valve.Then, it changes Pipe line outlet valve is fully closed, and the valve at heat transferring medium entrance 87 is micro- to be opened, and switching is communicated to: first order hydrogen reaction bed and level-one The connection of 91 tube side of heat exchanger;The tube side of the tube side and level-one hydrogen heat exchanger 94 of second level hydrogen reaction bed and secondary heat exchanger 92 connects It is logical;Third level hydrogen reaction bed is connected to the tube side of the tube side of three-level heat exchanger 93 and second level hydrogen heat exchanger 92;It will be in reaction bed Pressure rises to (3.5MPa) identical as heat exchanging pipe pressure;This is boost process.
Then, 42 valves are micro- opens for heat transferring medium outlet, and switching is communicated to: the first order is boosted bed structure and first-class heat exchanger 91 Tube side connection;Second level boosting bed structure is connected to the tube side of the tube side of secondary heat exchanger 92 and level-one hydrogen heat exchanger 94;The Three-level boosting bed structure is connected to the tube side of the tube side of three-level heat exchanger 93 and second level hydrogen heat exchanger 82;Heat exchange cycle is formed to return Temperature in reaction bed is increased to the first order (500 DEG C) by road, the second level (350 DEG C), the third level (200 DEG C);This is to heat up Journey.
Finally, starting pre- hydrogen release process in hydrogen reaction bed, micro- high pressure hydrogen that opens exports 109 valves, exports high pressure hydrogen;With Hydrogen release increase, in heating hydrogen release preparation stage hydrogen reaction bed high pressure hydrogen export 109 valves, heat transferring medium export 42 valves Door, 87 valve opening of heat transferring medium entrance are continuously increased;Hydrogen release stage hydrogen reaction bed correspondingly is in another in level-one in this High pressure hydrogen export 109 valves, heat transferring medium exports 42 valves, 87 valve opening of heat transferring medium entrance and constantly reduces;Finally, The hydrogen reaction bed of heating hydrogen release preparation stage enters the hydrogen release stage, and the hydrogen reaction bed in former hydrogen release stage enters cooling and suction hydrogen Stage.
Whole device uses two circulations: one for hydrogen boost bed suction/hydrogen release circulation, one be ethane gasification/liquefaction Circulation, by high-temperature residual heat all of being converted to electric power by expander acting and send outside.
Embodiment 2
The working medium mixed in the present embodiment with hydrogen is nitrogen.Boosting bed 3 is heated using high-temperature residual heat, makes its hydrogen release to generate 200 DEG C, the high pressure hydrogen of 3.5MPa;High pressure hydrogen is sent to mixing gasifying device 1, and comes to throttling expansion separator 4 and through liquid - 196 DEG C, the mixing of the liquid nitrogen of 3.5MPa after pump pressurization, low temperature liquid nitrogen in mixing gasifying device by high pressure hydrogen heating and gasifying simultaneously - 95 DEG C are warming up to, high pressure hydrogen then cools to -95 DEG C;- 95 DEG C, the high pressure hydrogen and nitrogen of 3.5MPa that mixing gasifying device generates The gaseous mixture of gas enters 7 expansion work of expanding machine, is expanded into 0.4MPa, after -177 DEG C, the gaseous mixture of low pressure hydrogen and nitrogen into Enter throttling expansion separator 4;In throttling expansion separator, low pressure gaseous mixture is further expanded to 0.15MPa to freeze, So that liquefaction of nitrogen and with gaseous hydrogen realization separate, other refrigerating methods can be used in the cooling capacity deficiency that nitrogen liquefies required completely Supplement;- 196 DEG C of liquid phase after separation, 0.15MPa liquid nitrogen enter mixing gasifying device 1 after liquid pump 5 is pressurized to 3.5MPa It is recycled;- 196 DEG C of gas phase, 0.15MPa hydrogen after hydrogen filtration film 6 enter boosting bed 3, for inhaling hydrogen;It is full to inhale hydrogen The boosting bed of sum is heated by extraneous high-temperature residual heat, and hydrogen release generates the high pressure hydrogen of 200 DEG C, 3.5MPa;Repeat above be circulated throughout Journey.210 DEG C are cooled to after the heated boosting bed of high-temperature residual heat, mixing gasifying device can be sent to and further utilized, finally cool to 20 DEG C outlet.The device process of this example is same as Example 1.

Claims (8)

1. the device of hydrogen boosting bed recovery waste heat power generation in a kind of liquefaction working medium, including more than high-temperature residual heat gas piping, low temperature Hot gas pipeline, expanding machine (2) and generator (7), the expanding machine are connected with generator coaxle, characterized in that described device Equipped with mixing gasifying device (1), boosting bed (3), heat exchanger (8), throttling expansion separator (4) and liquid pump (5);The throttling is swollen Swollen separator is equipped with mixed gas entrance, hydrogen outlet and liquid outlet, and hydrogen outlet is equipped with hydrogen filtration film (6);The liter Press is equipped with low-temp low-pressure hydrogen inlet (54), high temperature and pressure hydrogen outlet (53), high-temperature residual heat gas access (47) and waste heat Gas vent (50), the mixing gasifying device are equipped with hydrogen inlet, liquid entrance and mixed gas outlet;The heat exchanger (8) It is exported equipped with waste heat gas access, low temperature exhaust heat gas vent, the tube side import of liquid refrigerant and tube side;The throttling expansion point Hydrogen outlet from device (4) is connected to the low-temp low-pressure hydrogen inlet (54) of boosting bed (3), and the high temperature of boosting bed (3) is high Pressure hydrogen outlet (53) is connected to the hydrogen inlet of mixing gasifying device (1);The liquid outlet of the throttling expansion separator (4) is logical The tube side import that liquid pump is connected to heat exchanger is crossed, the tube side outlet of heat exchanger is connected to the liquid entrance of mixing gasifying device;Institute The mixed gas outlet for stating mixing gasifying device (1) is entered by the mixed gas that expanding machine (2) are connected to throttling expansion separator (4) Mouthful;The high-temperature residual heat gas piping is connected to the high-temperature residual heat gas access (47) of boosting bed (3), the waste heat of the boosting bed Gas vent (50) is connected to the low temperature exhaust heat gas access of heat exchanger by low temperature exhaust heat gas piping.
2. the device of hydrogen boosting bed recovery waste heat power generation in liquefaction working medium according to claim 1, it is characterized in that: described Boosting bed (3) includes heat exchange center (76) and boosting bed structure;Heat exchange center (76) is equipped with high-temperature residual heat gas access (47), remaining Hot gas outlet (50), first-class heat exchanger (91), secondary heat exchanger (92), three-level heat exchanger (93), level-one hydrogen heat exchanger (94) and second level hydrogen heat exchanger (82);The bed that boosts is equipped with hydrogen detector (101), and the outside for the bed that boosts is surrounded by nitrogen-filled seal guarantor Shield (80);High-temperature residual heat gas access (47) passes sequentially through first-class heat exchanger (91), secondary heat exchanger (92) and three-level heat exchange Device (93) is connected to waste heat gas vent (50);Every group of boosting bed structure is respectively equipped with No. 1 hydrogen reaction bed (A), No. 2 hydrogen reaction beds (B), No. 3 hydrogen reaction beds (C), surge tank (83) and hydrogen pump (95), No. 1 hydrogen reaction bed, No. 2 hydrogen reaction beds and No. 3 hydrogen reactions Bed is respectively equipped with heat transferring medium entrance (87), heat transferring medium outlet (42), low pressure hydrogen entrance (108) and high pressure hydrogen outlet (109);High pressure hydrogen outlet is equipped with filter membrane and valve, and low pressure hydrogen entrance is equipped with valve;High pressure hydrogen outlet (109) passes through High pressure hydrogen branch pipe is connected to high temperature and pressure hydrogen outlet, and low-temp low-pressure hydrogen inlet passes through low pressure hydrogen branch pipe, surge tank (83) low pressure hydrogen entrance (108) are connected;No. 1 hydrogen reaction bed of first group of boosting bed structure, No. 2 hydrogen reaction beds and No. 3 hydrogen are anti- It answers the heat transferring medium of bed to export (42) to be connected respectively to triple valve (61), one way outlet of triple valve is changed through hydrogen pump (95), level-one Hot device (91) and triple valve are connected to heat transferring medium entrance (87), and another way is through hydrogen pump (95), level-one hydrogen heat exchanger (94) Heat transferring medium entrance (87) are connected to triple valve;No. 1 hydrogen reaction bed of second group of boosting bed structure, No. 2 hydrogen reaction beds and No. 3 The heat transferring medium outlet (42) of hydrogen reaction bed is connected respectively to four-way valve (90), and one way outlet of four-way valve is through hydrogen pump (95), two Grade heat exchanger (92) and four-way valve are connected to heat transferring medium entrance (87), all the way through hydrogen pump (95), level-one hydrogen heat exchanger (94) and four-way valve is connected to heat transferring medium entrance, and third road is through hydrogen pump (95), second level hydrogen heat exchanger (82) and four-way valve It is connected to heat transferring medium entrance;Third group boosting No. 1 hydrogen reaction bed of bed structure, No. 2 hydrogen reaction beds and No. 3 hydrogen reaction beds change Thermal medium outlet (42) is connected respectively to triple valve (61), and one way outlet of triple valve is through hydrogen pump (95), three-level heat exchanger (93) Heat transferring medium entrance (87) are connected to triple valve, are connected all the way through hydrogen pump (95), second level hydrogen heat exchanger (82) and triple valve It is connected to heat transferring medium entrance.
3. the device of hydrogen boosting bed recovery waste heat power generation in liquefaction working medium according to claim 2, it is characterized in that: described No. 1 hydrogen reaction bed (A), No. 2 hydrogen reaction beds (B) and No. 3 hydrogen reaction beds (C) are added with metal hydride, the metallic hydrogen respectively Compound includes Rare Earth metal hydride.
4. the device of hydrogen boosting bed recovery waste heat power generation in liquefaction working medium according to claim 2, it is characterized in that: described The bed structure that boosts is single-stage or multistage, often adds first class boost bed, first-class heat exchanger and level-one hydrogen are accordingly added in heat exchange center Heat exchanger;The heat absorption of difference group boosting bed structure is the same or different, wherein pattern, structure and the gold of each group boosting bed structure Type and the carrying capacity for belonging to hydrogen storage material are identical or different, the pattern of each hydrogen reaction bed in every group of boosting bed structure, structure with And the type and carrying capacity of metal hydrogen storage material are identical or different, No. 1 hydrogen reaction bed A, No. 2 hydrogen reaction beds in three groups of boosting bed structures B, the weight and volume of No. 3 hydrogen reaction bed C may be the same or different;Boost bed reaction bed tank body by metal or non- Metal material is made, and is provided with inside holding or external thermal insulation or inside and outside Insulation, connects the pipeline of each equipment, unit It is provided with inside holding or external thermal insulation or inside and outside Insulation;Heat transferring medium includes hydrogen, inert gas or the stable liquid of property And gas, when using non-hydrogen heat transferring medium, the filter membrane of high pressure hydrogen outlet setting can separate hydrogen and non-hydrogen heat exchange is situated between Matter.
5. a kind of method for power generation by waste heat using hydrogen boosting bed recovery waste heat power generator in claim 1 liquefaction working medium, It is characterized in: using gas heating boosting bed (3) with high-temperature residual heat, generates high pressure hydrogen;The high pressure hydrogen with from section Stream expands separator (4) and the liquefaction working medium mixing after the pressurization of liquid liquid pump is sent to mixing gasifying device (1), Low Temperature Liquid chemical industry Matter is heated and gasified in mixing gasifying device by hydrogen and waste heat gas;It is swollen that hydrogen and the gaseous mixture of working medium enter expanding machine (2) Swollen acting drives electrical power generators;Mixture pressure and temperature decline after expanding machine acting, into throttling expansion separator (4) it separates;Gaseous mixture further expansion cooling in throttling expansion separator, so that gas working medium all liquefies and and Gaseous Hydrogen Gas realizes separation;The liquefaction working medium of liquid phase enters mixing gasifying device (1) circulation after liquid liquid pump (5) pressurization after separation It uses;Hydrogen after separation enters boosting bed (3) after hydrogen filtration film (6), and hydrogen is recycled.
6. the method for hydrogen boosting bed recovery waste heat power generation in liquefaction working medium according to claim 5, it is characterized in that: described The course of work of boosting bed are as follows: high temperature heat transferring medium is through high-temperature residual heat gas access (47), successively through first-class heat exchanger (91), two Grade heat exchanger (92) and three-level heat exchanger (93) arrive waste heat gas vent (50) and enter heat exchanger (8);Boosting bed be divided into, in, Lower three groups of boosting bed structures, the respectively first order boosting bed structure, second level boosting bed structure, third level boosting bed structure, often Grade boosting bed structure is equipped with 3 hydrogen reaction beds: No. 1 hydrogen reaction bed (A), No. 2 hydrogen reaction beds (B), No. 3 hydrogen reaction beds (C);From liter From the aspect of press realizes stable hydrogen release, whole work process setting is divided into three phases, hydrogen release stage, cooling and suction hydrogen rank Section heats up the hydrogen release preparation stage;
The hydrogen release stage:
The hydrogen heat exchanging pipe of first order boosting bed structure makes first order hydrogen reaction bed and first-class heat exchanger pipe by valve transfer Cheng Liantong supplies heat by the high-temperature gas passed through from first-class heat exchanger shell side, so that first order hydrogen reaction bed is absorbed heat and hold It is continuous to release high pressure hydrogen, the hot-gas temperature decline of first-class heat exchanger out;The high pressure hydrogen of first order hydrogen reaction bed goes out simultaneously Valve at mouthful is opened, and the high pressure hydrogen of releasing enters high temperature and pressure hydrogen outlet from high pressure hydrogen outlet;
The second level boosting bed structure hydrogen heat exchanging pipe by valve transfer make second level hydrogen reaction bed respectively with secondary heat exchange The tube side of device is connected to the tube side of level-one hydrogen heat exchanger, the high-temperature gas by passing through from secondary heat exchanger shell side and level-one hydrogen The high-temperature hydrogen that the shell side of heat exchanger passes through supplies heat, so that second level hydrogen reaction bed is absorbed heat and continues to release High Pressure Hydrogen Gas, out the hot-gas temperature decline of secondary heat exchanger, out the high-temperature hydrogen temperature decline of level-one hydrogen heat exchanger shell pass;Simultaneously The valve in second level hydrogen reaction bed high pressure hydrogen exit is opened, and the high pressure hydrogen of releasing enters high temperature height from high pressure hydrogen outlet Press hydrogen outlet;
The hydrogen heat exchanging pipe of third level boosting bed structure makes third level hydrogen reaction bed exchange heat respectively with three-level by valve transfer The tube side of device is connected to the tube side of second level hydrogen heat exchanger, the high-temperature gas by passing through from three-level heat exchanger shell pass and second level hydrogen The high-temperature hydrogen that the shell side of heat exchanger passes through supplies heat, so that third level hydrogen reaction bed absorbs heat and continues to release High Pressure Hydrogen Gas, out the hot-gas temperature decline of three-level heat exchanger, out the high-temperature hydrogen temperature decline of second level hydrogen heat exchanger shell pass;Simultaneously The valve in third level hydrogen reaction bed high pressure hydrogen exit is opened, and the high pressure hydrogen of releasing enters high temperature height from high pressure hydrogen outlet Press hydrogen outlet;
Cooling and suction hydroformylation stage:
Enter cooling after the hydrogen release stage and inhale hydroformylation stage, first closes the valve in high pressure hydrogen exit;
The hydrogen heat exchanging pipe of first order boosting bed structure makes first order hydrogen reaction bed and level-one hydrogen exchange heat by valve transfer The shell side of device is connected to, and is exchanged heat with the low temperature hydrogen passed through from the tube side of level-one hydrogen heat exchanger, first will be at the end of the hydrogen release stage Sensible heat transfer gives second level hydrogen reaction bed, and the decline of first order hydrogen reaction bed temperature starts to inhale hydrogen, at this moment opens low pressure hydrogen entrance The valve at place, use when the same heat transfer that will be released when inhaling hydrogen by heat exchanging pipe is to second level hydrogen reaction bed hydrogen release;
The hydrogen heat exchanging pipe of second level boosting bed structure makes second level hydrogen reaction bed and second level hydrogen exchange heat by valve transfer The shell side of device is connected to, and is exchanged heat with the low temperature hydrogen passed through from the tube side of second level hydrogen heat exchanger, first will be at the end of the hydrogen release stage Sensible heat transfer gives third level hydrogen reaction bed, and hydrogen reaction bed temperature decline in the second level starts to inhale hydrogen, at this moment opens low pressure hydrogen entrance The valve at place, use when the same heat transfer that will be released when inhaling hydrogen by heat exchanging pipe is to third level hydrogen reaction bed hydrogen release;
It heats up the hydrogen release preparation stage:
Enter the heating hydrogen release preparation stage after cooling and suction hydroformylation stage, is first shut off low pressure hydrogen imported valve;Then, it changes Pipe line outlet valve is fully closed, and the valve of heat transferring medium inlet is micro- to be opened, and switching is communicated to: first order hydrogen reaction bed is changed with level-one Hot device tube side connection;Second level hydrogen reaction bed is connected to the tube side of the tube side of secondary heat exchanger and level-one hydrogen heat exchanger;Third Grade hydrogen reaction bed is connected to the tube side of the tube side of three-level heat exchanger and second level hydrogen heat exchanger;Pressure in reaction bed is risen to and changed Pipe line pressure is identical;This is boost process;
Then, heat transferring medium outlet valve is micro- opens, and switching is communicated to: first order boosting bed structure and first-class heat exchanger tube side connect It is logical;Second level boosting bed structure is connected to the tube side of the tube side of secondary heat exchanger and level-one hydrogen heat exchanger;Third level boosting bed Structure is connected to the tube side of the tube side of three-level heat exchanger and second level hydrogen heat exchanger;Heat exchange cycle circuit is formed, it will be in reaction bed Temperature is increased to the first order, the second level, the third level;This is temperature-rise period;
Finally, start pre- hydrogen release process in hydrogen reaction bed, and it is micro- to open high pressure hydrogen outlet valve, export high pressure hydrogen;With hydrogen release Increase, high pressure hydrogen outlet valve, heat transferring medium outlet valve, heat transferring medium in heating hydrogen release preparation stage hydrogen reaction bed Inlet valve aperture is continuously increased;In this correspondingly with the high pressure hydrogen outlet in hydrogen release stage hydrogen reaction bed another in level-one Valve, heat transferring medium outlet valve, heat transferring medium inlet valve aperture are constantly reduced;Finally, the hydrogen of heating hydrogen release preparation stage Reaction bed enters the hydrogen release stage, and the hydrogen reaction bed in former hydrogen release stage enters cooling and suction hydroformylation stage.
7. the method for hydrogen boosting bed recovery waste heat power generation in liquefaction working medium according to claim 5, it is characterized in that: described The gas of high-temperature residual heat is industrial high-temperature flue gas.
8. the method for hydrogen boosting bed recovery waste heat power generation in liquefaction working medium according to claim 5, it is characterized in that: described Working medium includes ethane, nitrogen, propane and butane.
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