CN108414673A - The measuring system and method for the combustion characteristics of hydrogen in a kind of overcritical mixed working fluid - Google Patents
The measuring system and method for the combustion characteristics of hydrogen in a kind of overcritical mixed working fluid Download PDFInfo
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Abstract
The measuring system and method for the combustion characteristics of hydrogen in a kind of overcritical mixed working fluid, including methanol tank, the first high pressure constant flow pump, electric tube furnace, gas cylinder, water tank, feeder, decomposing hydrogen dioxide solution section, conversion zone, gas-liquid separator, gas flowmeter and gas chromatograph；Wherein, gas cylinder is connected with feeder；Water tank is connected with feeder；Feeder is also connected with decomposing hydrogen dioxide solution section, and decomposing hydrogen dioxide solution section is connected with conversion zone, is located on conversion zone at different length and is provided with outlet conduit, per road pipeline through being connected with gas chromatograph with gas-liquid separator, gas flowmeter；Methanol tank is connected through the first high pressure constant flow pump with electric tube furnace, and electric tube furnace is connected with the outlet conduit all the way on conversion zone.The present invention can measure overcritical H under high-temperature and high-pressure conditions2O/CO2/H2The concentration variation of middle hydrogen and oxygen before and after the differential responses time, obtains kinetic parameter of the reaction including activation energy and pre-exponential factor.
Description
Technical field
The present invention relates to a kind of burnings of hydrogen in the experiment fields of measurement of combustion characteristics more particularly to overcritical mixed working fluid
The measuring system and method for characteristic.
Background technology
Traditional coal burning Land use systems have that energy utilization efficiency is low, the inherent shortcomings such as seriously polluted, bring increasingly
Severe society and environmental problem, therefore the novel coal of clean and effective is increasingly paid close attention to by people using technology.At present with
Aqueous environment coal gas turns to the New type coal hydrogen manufacturing of core and the theoretical and technology that generates electricity, and utilizes the unique physical chemistry of supercritical water
Matter converts coal into the H of high-purity in the form of " one pot of water steams coal "2And CO2, nitrogen oxides, sulphur oxidation are realized from source
The zero-emission of object and solid particulate matter simultaneously realizes CO2Recycling.But the supercritical water gasification of coal is the endothermic reaction, reaction
It needs to absorb amount of heat in the process.Traditional Electric heating needs to increase additional energy input, increases the complexity of equipment
Property.To the overcritical H after gasification2O/CO2/H2Mixed working fluid is passed through oxygen, makes H2Smoulder heat release, may be implemented system
From heat supply.Therefore, overcritical H is obtained2O/CO2/H2The kinetic parameter of middle hydrogen burning has great meaning for the application of the technology
Justice.
Invention content
To realize above-mentioned technical goal, the present invention provides a kind of measurements of the combustion characteristics of hydrogen in overcritical mixed working fluid
System and method, can measure the burn rate of hydrogen in overcritical mixed working fluid under different condition, and then obtain the dynamic of the reaction
Mechanics parameter, the industrial applications for combustion of hydrogen in overcritical mixed working fluid provide theoretical direction.
To achieve the above object, the technical solution adopted by the present invention is as follows：
The measuring system of the combustion characteristics of hydrogen in a kind of overcritical mixed working fluid, including methanol tank, electric tube furnace, high pressure gas
Bottle, water tank, feeder, decomposing hydrogen dioxide solution section, conversion zone, gas-liquid separator and gas chromatograph；Wherein, gas cylinder with plus
Glassware is connected；Water tank is connected with feeder；Feeder is also connected with decomposing hydrogen dioxide solution section, decomposing hydrogen dioxide solution section and conversion zone phase
Even, it is located on conversion zone at different length and is provided with outlet conduit, is connected with gas chromatograph through gas-liquid separator per road pipeline；
Methanol tank is connected with the inlet duct on conversion zone.
The present invention, which further improves, to be, batch can is provided between gas cylinder and feeder, and feeder includes sealing
Seat, end socket, body and piston are provided with seal receptacle at the top of body, end socket are provided on seal receptacle, be provided in body can on
Body internal cavities are divided into upper plenum and lower cavity by the piston of lower movement, piston；Batch can is connected with the lower cavity of feeder, water
Case is connected with the upper plenum of feeder.
The present invention, which further improves, to be, water tank is connected with the second high pressure constant flow pump, the second high pressure constant flow pump and charging
Device is connected.
The present invention, which further improves, to be, decomposing hydrogen dioxide solution section is arranged at conversion zone in sand-bath stove；And dioxygen
Water decomposition section and conversion zone use the double-deck linear arrangement, the double-deck inclination arrangement or helix shape in sand-bath stove.
The present invention, which further improves, to be, cooler and ball valve are both provided on every way outlet pipeline of conversion zone.
The present invention, which further improves, to be, cooler is double-pipe cooler；The material of decomposing hydrogen dioxide solution section and conversion zone
Matter is 316 stainless steels, 276 stainless steel of 625 stainless steels of Inconel or Hastelloy C alloys.
The present invention, which further improves, to be, per road pipeline through being connected with counterbalance valve, counterbalance valve and gas-liquid separator phase
Even.
Methanol solution is input in electric tube furnace using high pressure constant flow pump, makes methanol overcritical by a kind of measurement method
Gasification is CO in water2And H2, form overcritical H2O/CO2/H2Mixed working fluid；Drive the dioxygen in batch can water-soluble using gas cylinder
Liquid enters the lower cavity of feeder；Water in water tank enters the upper plenum of feeder under the action of high pressure constant flow pump, and drives
Piston makes the hydrogen peroxide solution in lower cavity enter decomposing hydrogen dioxide solution section, overcritical H2O/CO2/H2Working medium and hydrogen peroxide solution
Oxygen hybrid concurrency life in conversion zone is reacted, and changes H by changing the length of conversion zone under the conditions of same operating2O/CO2/H2
Residence time of the working medium in conversion zone；H after reaction2O/CO2/H2Working medium passes through double-pipe cooler postcooling to room temperature, and
The content that different component in mixed working fluid is measured by gas chromatograph, by measuring overcritical mixed working fluid under different working conditions
The burn rate of middle hydrogen obtains the kinetic parameter of the reaction.
The present invention, which further improves, to be, the operating temperature of electric tube furnace is 600~700 DEG C.
The present invention, which further improves, to be, the operating temperature of sand-bath stove is 400~600 DEG C.
Compared with prior art, the invention has the advantages that：
(1) present invention generates overcritical H using the supercritical water gasification of methanol2O/CO2/H2Mixed working fluid, the gas of methanol
98% or more can be reached by changing efficiency, avoid interference of other gasification products to combustion of hydrogen；
(2) overcritical H is generated using the pyrolytic of hydrogen peroxide2O/O2Mixed working fluid, resolution ratio can reach 99% with
On, and the concentration of oxygen can be changed by changing the concentration of hydrogen peroxide；
(3) compared with the technology for being directly passed through hydrogen and oxygen into supercritical system using gas cylinder, the experiment system
System avoids gas backstreaming and enters the possibility that gas cylinder explodes, and substantially increases the safety of experiment, and system section
Save space is easy to arrange；
(4) residence time of the mixed working fluid in conversion zone passes through change conversion zone under the conditions of same operating in the system
Length avoids the influence for changing flow velocity to experimental result, improves the precision of experiment to change.
When measurement, the present invention generates overcritical H using the supercritical water gasification of methanol2O/CO2/H2Mixed working fluid utilizes
Hydrogen peroxide solution pyrolytic generates oxygen, overcritical H2O/CO2/H2The hybrid concurrency life reaction in conversion zone of working medium and oxygen,
By changing the length of conversion zone come when changing stop of the mixed working fluid in the conversion zone of different length under the conditions of same operating
Between.Mixed working fluid after reaction is measured to room temperature, and by gas chromatograph in mixed working fluid by double-pipe cooler postcooling
The content of different component to obtain the burn rate of hydrogen in overcritical mixed working fluid under different working conditions, and then is somebody's turn to do
The kinetic parameter including activation energy and pre-exponential factor of reaction.
Description of the drawings
Fig. 1 is according to the overcritical H of the embodiment of the present invention2O/CO2/H2The knot of the experimental measurement system of the combustion characteristics of middle hydrogen
Structure schematic diagram；
Fig. 2 is overcritical H shown in Fig. 12O/CO2/H2The structure of feeder in the experimental measurement system of the combustion characteristics of middle hydrogen
Schematic diagram.
In figure, 1- methanol tanks；The first high pressure constant flow pumps of 2-；3- electric tube furnaces；4- gas cylinders；5- batch cans；6- water tanks；7-
Feeder；8- decomposing hydrogen dioxide solution sections；9- conversion zones；10- sand-bath stoves；11- coolers；12- ball valves；13- counterbalance valves；14- gas-liquids
Separator；15- gas flowmeters；16- gas chromatographs；17- seal receptacles；18- end sockets；19- bodies；20- pistons；21- second
High pressure constant flow pump, 22- first entrance pipelines, 23- second entrance pipelines, 24- first outlet pipelines, 25- second outlet pipelines,
26- third outlet conduits, the 4th outlet conduits of 27-.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.It should be noted that in attached drawing or specification description, similar or identical portion
Divide and all uses identical figure number.The realization method for not being painted or describing in attached drawing is those of ordinary skill in technical field
Known form.In addition, though the demonstration of the parameter comprising particular value can be provided herein, it is to be understood that parameter is without definite etc.
In corresponding value, but can be similar to be worth accordingly in acceptable error margin or design constraint.The side mentioned in embodiment
Only it is the direction of refer to the attached drawing to term, such as "upper", "lower", "front", "rear", "left", "right" etc..Therefore, the direction used
Term is intended to be illustrative and not intended to limit protection scope of the present invention.
Referring to Fig. 1, measuring system of the invention includes methanol tank 1, the first high pressure constant flow pump 2, electric tube furnace 3, high pressure gas
Bottle 4, batch can 5, water tank 6, feeder 7, decomposing hydrogen dioxide solution section 8, conversion zone 9, sand-bath stove 10, cooler 11, ball valve 12, counterbalance valve
13, gas-liquid separator 14, gas flowmeter 15 and gas chromatograph 16.Methanol tank 1, the first high pressure constant flow pump 2 and tubular type
Electric furnace 3 forms CO2/H2Mixed working fluid supply portion；Gas cylinder 4, batch can 5, water tank 6, the first high pressure constant flow pump 2 and feeder 7
Form oxygen supply part；Part of data acquisition includes thermocouple, pressure gauge and pressure sensor and gas chromatograph 16, data
Collecting part measures the content of different component in the front and back mixed working fluid of reaction for obtaining the parameters such as pressure, temperature.Wherein,
Gas cylinder 4 is connected with batch can 5, and batch can 5 is connected with feeder 7；Water tank 6 is connected with the second high pressure constant flow pump 21, the second high pressure
Constant flow pump 21 is connected with feeder 7.Feeder 7 is also connected with decomposing hydrogen dioxide solution section 8, and decomposing hydrogen dioxide solution section 8 is through second entrance pipe
Road 23 is connected with conversion zone 9, and decomposing hydrogen dioxide solution section 8 is arranged at conversion zone 9 in sand-bath stove 10；It is located at difference on conversion zone 9
Outlet conduit is provided at length, specifically, it is four sections that conversion zone 9, which divides, totally 4 outlet conduits, two entrances, respectively first
23,4 outlet conduits of inlet duct 22 and second entrance pipeline are respectively first outlet pipeline 24, second outlet pipeline 25,
Three outlet conduits 26 and the 4th outlet conduit 27.Conversion zone 9 is used to provide for the reaction of hydrogen in mixed working fluid and oxygen different
Residence time.
It is both provided with cooler 11 and ball valve 12 on per way outlet pipeline, is carried on the back through being connected with counterbalance valve 13 per road pipeline
Pressure valve 13 is connected through gas-liquid separator 14, gas flowmeter 15 with gas chromatograph 16.Specifically, cooler 11 is that bushing type is cold
But device, and inner tube is twist, cooler 11 is cooling device, for the high temperature mixed-refrigerant after reaction to be cooled to room temperature.
Counterbalance valve 13 for realizing with the hyperbaric environment in regulating system.Gas-liquid separator 14 is gas-liquid separation device, for that will cool down
Gas in mixture and liquid separation, gas afterwards is flowed out from upper outlet, and liquid is flowed out from lower outlet.Gas flowmeter 15 is used
The total flow of mixed gas after measuring reaction.Gas chromatograph 16 is data acquisition device, for measuring in mixed gas not
With the content of component.
Methanol tank 1 is connected through the first high pressure constant flow pump 2 with electric tube furnace 3, and electric tube furnace 3 enters with first on conversion zone 9
Mouth pipeline 22 is connected.For electric tube furnace 3 for generating hot environment, it is CO so that methanol is gasified in supercritical water2And H2, formed super
Critical H2O/CO2/H2Mixed working fluid.
Specifically, feeder 7 includes：Seal receptacle 17, end socket 18, body 19 and piston 20,19 top of body are provided with close
Seat 17 is sealed, is provided with end socket 18 on seal receptacle 17, is provided with the piston 20 that can be moved up and down in body 19, piston 20 is by body
19 internal cavities are divided into upper plenum and lower cavity.Batch can 5 is connected with the lower cavity of feeder 7, the second high pressure constant flow pump 21 with plus
The upper plenum of glassware 7 is connected.
Decomposing hydrogen dioxide solution section 8 provides the sufficient residence time for hydrogen peroxide solution, is allowed to decompose completely under the high temperature conditions,
Form the homogeneous mixed working fluid that oxygen and supercritical water dissolve each other.
The overcritical H of the present invention2O/CO2/H2The experimental measurement system of the combustion characteristics of middle hydrogen includes：CO2/H2Mixed working fluid supplies
To part, oxygen supply part, conversion zone 9 and part of data acquisition.Wherein, CO2/H2Mixed working fluid supply portion is high using first
Methanol solution is input in electric tube furnace 3 by pressure constant flow pump 2, and it is CO so that methanol is gasified in supercritical water2And H2, form super face
Boundary H2O/CO2/H2Mixed working fluid.Wherein, dioxygen of the oxygen supply part in driving batch can 5 using gas cylinder 4 before system works
Aqueous solution enters the piston lower portion of feeder 7；System work when water tank 6 in water under the action of the first high pressure constant flow pump 2 into
The upper piston area for entering feeder 7 drives the hydrogen peroxide solution of piston lower portion to enter decomposing hydrogen dioxide solution section 8, to be provided for system
The oxygen supply of continuous-stable.Overcritical H2O/CO2/H2Working medium and oxygen hybrid concurrency life reaction, same operating item in conversion zone 9
Change residence time of the mixed working fluid in conversion zone 9 by changing the length of conversion zone 9 under part.Mixed working fluid after reaction
By 11 postcooling of double-pipe cooler to room temperature, and the content of different component in mixed working fluid is measured by gas chromatograph 16,
To obtain the burn rate of hydrogen in overcritical mixed working fluid under different working conditions, and then obtain the dynamics ginseng of the reaction
Number.
Part of data acquisition utilizes armoured thermocouple measurement temperature value, and pressure is measured using pressure gauge and pressure sensor
Value measures the content of different component in mixed working fluid using gas chromatograph 16.Wherein, it is shared to measure layout points for armoured thermocouple
Eight.First measurement point is arranged in the exit of electric tube furnace 3, second measurement point be arranged in supercritical water/carbon dioxide/
Hydrogen mixed working fluid enters before conversion zone 9, and third measurement point is arranged in supercritical water/oxygen mix working medium and enters conversion zone
Before 9, the 4th measurement point is arranged in the inlet of conversion zone 9, and the five, the six, seven, eight measurement points are arranged in conversion zone
9 four exits.There are two gauge measurement layout points are total, first exit for being arranged in the first high pressure constant flow pump 2, the
Two exits for being arranged in the second high pressure constant flow pump 21.The front i.e. counterbalance valve 13 that pressure sensor is arranged in counterbalance valve 13 enters
At mouthful.
In the present invention, by the overcritical H of the supercritical water gasification generation of methanol2O/CO2/H2Mixed working fluid and dioxygen are water-soluble
The oxygen that liquid pyrolytic generates inputs in conversion zone 9 simultaneously, when by changing stop of the length of conversion zone to change working medium
Between, the content of different component in mixed gas after reacting is measured, acquires the reaction rate of combustion of hydrogen under different operating modes, and then i.e.
It can get the kinetic parameter of reaction.
In an exemplary embodiment of the present invention, a kind of overcritical H is provided2O/CO2/H2The reality of the combustion characteristics of middle hydrogen
Test measuring system.Fig. 1 is the overcritical H according to the embodiment of the present invention2O/CO2/H2The experimental measurement system of the combustion characteristics of middle hydrogen
Structural schematic diagram.As shown in Figure 1, the present embodiment experimental measurement system includes：Methanol tank 1, high pressure constant flow pump 2, electric tube furnace
3, gas cylinder 4, batch can 5, water tank 6, feeder 7, decomposing hydrogen dioxide solution section 8, conversion zone 9, sand-bath stove 10, cooler 11, ball valve
12, counterbalance valve 13, gas-liquid separator 14, gas flowmeter 15 and gas chromatograph 16.
Wherein, it is CO that electric tube furnace 3 makes methanol gasify in supercritical water using high temperature and high pressure environment2And H2, form super face
Boundary H2O/CO2/H2Mixed working fluid.
Decomposing hydrogen dioxide solution section 8 using hydrogen peroxide under the high temperature conditions be decomposed to form oxygen completely and supercritical water dissolves each other
Homogeneous mixed working fluid is overcritical H2O/CO2/H2The burning of middle hydrogen provides oxygen.
Fig. 2 is overcritical H shown in Fig. 12O/CO2/H2The knot of feeder 7 in the experimental measurement system of the combustion characteristics of middle hydrogen
Structure schematic diagram.As shown in Fig. 2, the feeder 7 includes：Seal receptacle 17, end socket 18, body 19 and piston 20.Before system work,
Hydrogen peroxide solution in the driving batch can 5 of gas cylinder 4 enters the lower cavity of the piston 20 of feeder 7, is allowed to water-soluble full of dioxygen
Liquid；When system works, the water in water tank 6, into the upper plenum of the piston 20 of feeder 7, drives under the action of high pressure constant flow pump 2
Piston 20 moves downward, and the hydrogen peroxide solution of 20 times cavitys of piston is made to enter decomposing hydrogen dioxide solution section 8, to provide company for system
Continue stable oxygen supply.
Methanol solution of the high pressure constant flow pump 2 for the delivered constant flow into the electric tube furnace 3 under condition of high voltage；It is also used for
The water of the upper plenum delivered constant flow of piston in feeder 7 under to condition of high voltage, and then drive pair of the lower cavity of piston
Oxygen aqueous solution enters decomposing hydrogen dioxide solution section 8.
Wherein, gas cylinder 4 drives the hydrogen peroxide solution in batch can 5 to enter 7 piston lower portion of feeder before system work；System
Water when system work in water tank 6 enters 7 upper piston area of feeder under the action of high pressure constant flow pump 2, drives cavity under piston
Hydrogen peroxide solution enters decomposing hydrogen dioxide solution section 8, to provide the oxygen supply of continuous-stable for system.
The measurement method based on above system of the present invention is on the one hand to be inputted methanol solution using high pressure constant flow pump 2
Into electric tube furnace 3, it is CO so that methanol is gasified in supercritical water2And H2, form overcritical H2O/CO2/H2Mixed working fluid.It is another
Water in water tank 6 is inputted 20 upper plenum of piston of feeder 7 using high pressure constant flow pump 2 by aspect, drives the lower chamber of piston 20
Interior hydrogen peroxide solution enters decomposing hydrogen dioxide solution section 8, to provide the oxygen supply of continuous-stable for system.Overcritical H2O/CO2/
H2Working medium and oxygen are sufficiently mixed and react in conversion zone 9, under the conditions of same operating by change conversion zone 9 length come
Change residence time of the mixed working fluid in conversion zone.Mixed working fluid after reaction is by 11 postcooling of double-pipe cooler to room
Temperature then passes through gas phase and liquid phase after gas-liquid separator 14 and detaches, gas mixing working medium is measured using gas chromatograph 16
The content of middle different component to obtain the burn rate of hydrogen in overcritical mixed working fluid under different working conditions, and then obtains
The kinetic parameter of the reaction.
It should be noted that, although overcritical H is generated in the present embodiment using the supercritical water gasification of methanol2O/CO2/
H2Mixed working fluid, but the present invention is not limited thereto.For example：Generate overcritical H2O/CO2/H2Mixed working fluid can also lead to
The supercritical water gasification of glycerine is crossed to realize.
Decomposing hydrogen dioxide solution section 8 and conversion zone 9 in sand-bath stove 10 can the double-deck linear arrangement, double-deck can also tilt or
Helix shape, to improve space availability ratio.Sand-bath stove 10 is used to provide heat for decomposing hydrogen dioxide solution section 8 and conversion zone 9, is allowed to
Reach required temperature value.
Decomposing hydrogen dioxide solution section 8 and conversion zone 9 require still have very high intensity under high-temperature and high-pressure conditions, only provide herein
Several satisfactory materials, by way of example, the one kind of tubing in material once：316 stainless steels, Inconel 625 is not
Become rusty steel or 276 stainless steel of Hastelloy C alloys.
The overcritical H of the present embodiment2O/CO2/H2The work of electric tube furnace 3 in the experimental measurement system of the combustion characteristics of middle hydrogen
For temperature between 600~700 DEG C, the operating temperature of sand-bath stove 10 is whole including every road pipeline between 400~600 DEG C
The operating pressure of a system is between 23~30MPa.
According to above description, those skilled in the art should H overcritical to the present invention2O/CO2/H2The combustion characteristics of middle hydrogen
Experimental measurement system have clear understanding.
In addition, the above-mentioned definition to each element and method is not limited in the various concrete structures mentioned in embodiment, shape
Shape or mode, those of ordinary skill in the art simply can be changed or replaced to it.
The present invention generates overcritical H using the supercritical water gasification of methanol2O/CO2/H2Mixed working fluid utilizes hydrogen peroxide
Solution pyrolytic generates oxygen, and the two is inputted in conversion zone simultaneously, changes working medium by changing the length of conversion zone
Residence time, the content of different component in mixed gas after reaction is measured using gas chromatograph, acquires hydrogen under different operating modes
The reaction rate of gas burning, and then the reactive kinetics parameters of combustion of hydrogen in overcritical mixed working fluid are can be obtained, there is pole
High scientific research application value.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
1. the measuring system of the combustion characteristics of hydrogen in a kind of overcritical mixed working fluid, which is characterized in that including methanol tank (1), height
Air bottle (4), water tank (6), feeder (7), decomposing hydrogen dioxide solution section (8), conversion zone (9) and gas-liquid separator (14) and gas
Chromatography (16)；Wherein, gas cylinder (4) is connected with feeder (7)；Water tank (6) is connected with feeder (7)；Feeder (7)
Also it is connected with decomposing hydrogen dioxide solution section (8), decomposing hydrogen dioxide solution section (8) is connected with conversion zone (9), and different length are located on conversion zone (9)
It is provided with outlet conduit at degree, is connected with gas chromatograph (16) through gas-liquid separator (14) per road pipeline；Methanol tank (1) with
Inlet duct on conversion zone (9) is connected.
2. the measuring system of the combustion characteristics of hydrogen in mixed working fluid according to claim 1, which is characterized in that gas cylinder
(4) batch can (5) is provided between feeder (7), feeder (7) includes seal receptacle (17), end socket (18), body (19) and lives
It fills in (20), seal receptacle (17) is provided at the top of body (19), end socket (18) is provided on seal receptacle (17), is arranged in body (19)
There are the piston (20) that can be moved up and down, piston (20) that body (19) internal cavities are divided into upper plenum and lower cavity；Batch can (5)
It is connected with the lower cavity of feeder (7), water tank (6) is connected with the upper plenum of feeder (7).
3. the measuring system of the combustion characteristics of hydrogen in overcritical mixed working fluid according to claim 1, which is characterized in that water
Case (6) is connected with the second high pressure constant flow pump (21), and the second high pressure constant flow pump (21) is connected with feeder (7).
4. the measuring system of the combustion characteristics of hydrogen in overcritical mixed working fluid according to claim 1, which is characterized in that double
Oxygen water decomposition section (8) is arranged at conversion zone (9) in sand-bath stove (10)；And decomposing hydrogen dioxide solution section (8) and conversion zone (9) exist
Using the double-deck linear arrangement, the double-deck inclination arrangement or helix shape in sand-bath stove (10).
5. the measuring system of the combustion characteristics of hydrogen in overcritical mixed working fluid according to claim 1, which is characterized in that anti-
It answers and is both provided with cooler (11) and ball valve (12) on every way outlet pipeline of section (9).
6. the measuring system of the combustion characteristics of hydrogen in overcritical mixed working fluid according to claim 1, which is characterized in that cold
But device (11) is double-pipe cooler；Decomposing hydrogen dioxide solution section (8) and the material of conversion zone (9) are 316 stainless steels, Inconel625
276 stainless steel of stainless steel or Hastelloy C alloys.
7. the measuring system of the combustion characteristics of hydrogen in overcritical mixed working fluid according to claim 1, which is characterized in that every
Road pipeline is passed through to be connected with counterbalance valve (13), and counterbalance valve (13) is connected with gas-liquid separator (14).
8. a kind of measurement method of system as claimed in claim 2, which is characterized in that use high pressure constant flow pump (2) by methanol
Solution is input in electric tube furnace (3), and it is CO so that methanol is gasified in supercritical water2And H2, form overcritical H2O/CO2/H2It is mixed
Close working medium；Enter the lower cavity of feeder (7) using the hydrogen peroxide solution in gas cylinder (4) driving batch can (5)；Water tank (6)
In water enter the upper plenum of feeder (7) under the action of high pressure constant flow pump (2), and piston is driven to make the dioxygen in lower cavity
Aqueous solution enters decomposing hydrogen dioxide solution section (8), overcritical H2O/CO2/H2The oxygen of working medium and hydrogen peroxide solution mixes in conversion zone (9)
Merging reacts, and changes H by changing the length of conversion zone (9) under the conditions of same operating2O/CO2/H2Working medium is in conversion zone
In residence time；H after reaction2O/CO2/H2Working medium passes through double-pipe cooler (11) postcooling to room temperature, and by gas phase color
Spectrometer (16) measures the content of different component in mixed working fluid, passes through hydrogen in overcritical mixed working fluid under the different working conditions of measurement
Burn rate, obtain the kinetic parameter of the reaction.
9. measurement method according to claim 8, which is characterized in that the operating temperature of electric tube furnace (3) is 600~700
℃。
10. measurement method according to claim 8, which is characterized in that the operating temperature of sand-bath stove (10) is 400~600
℃。
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| CN114740141A (en) * | 2022-04-27 | 2022-07-12 | 西安交通大学 | Experimental measurement system and method for hydrogen supercritical water thermal combustion characteristics |
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| CN107903165A (en) * | 2017-10-25 | 2018-04-13 | 常州大学 | A kind of method that m-methyl benzoic acid is continuously prepared using tubular reactor |
| CN208420818U (en) * | 2018-05-24 | 2019-01-22 | 西安交通大学 | The measuring system of the combustion characteristics of hydrogen in a kind of overcritical mixed working fluid |
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| CN103771549A (en) * | 2014-01-25 | 2014-05-07 | 西安交通大学 | Multifunctional supercritical water technical experimental system |
| CN104388974A (en) * | 2014-11-12 | 2015-03-04 | 宁夏嘉翔自控技术有限公司 | Feeder for solar hydrogen production system |
| CN104671207A (en) * | 2015-01-22 | 2015-06-03 | 大连理工大学 | Device and method for preparing heavy-oxygen water by taking H2 and 18O2 as raw materials |
| CN105842363A (en) * | 2016-05-18 | 2016-08-10 | 上海交通大学 | COD test analysis system based on supercritical water oxidization method and application of COD test analysis system |
| CN106640008A (en) * | 2016-12-30 | 2017-05-10 | 中国海洋石油总公司 | Supercritical multisource multielement thermal fluid injection-production system and injection-production method |
| CN107903165A (en) * | 2017-10-25 | 2018-04-13 | 常州大学 | A kind of method that m-methyl benzoic acid is continuously prepared using tubular reactor |
| CN208420818U (en) * | 2018-05-24 | 2019-01-22 | 西安交通大学 | The measuring system of the combustion characteristics of hydrogen in a kind of overcritical mixed working fluid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114740141A (en) * | 2022-04-27 | 2022-07-12 | 西安交通大学 | Experimental measurement system and method for hydrogen supercritical water thermal combustion characteristics |
| CN114740141B (en) * | 2022-04-27 | 2023-04-28 | 西安交通大学 | Experiment measurement system and method for hydrogen supercritical hydrothermal combustion characteristics |
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| CN108414673B (en) | 2023-09-19 |
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