CN108956685A - A kind of condensation visual experimental apparatus of steam containing fixed gas of object-oriented - Google Patents
A kind of condensation visual experimental apparatus of steam containing fixed gas of object-oriented Download PDFInfo
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- CN108956685A CN108956685A CN201810540966.2A CN201810540966A CN108956685A CN 108956685 A CN108956685 A CN 108956685A CN 201810540966 A CN201810540966 A CN 201810540966A CN 108956685 A CN108956685 A CN 108956685A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/14—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation
- G01N25/142—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation by condensation
Abstract
The invention discloses a kind of steam containing fixed gas of object-oriented to condense visual experimental apparatus, mainly includes steam supply system, air supply system, other gas supply systems, cooling water system, visualized experiment body and data collection system.Steam and fixed gas ingredient are generated by steam supply system, air supply system and other gas supply systems.Cavity is tested in main gas supply line connection, motor-driven valve is set on pipeline, motor-driven valve is according to experiment intracorporal pressure negative-feedback regu- lation itself aperture of chamber to control steam flow.Cooling water enters in experiment pipeline section under the action of water pump through flowmeter, is returned in water bath with thermostatic control after exchanging heat in experiment pipeline section by return pipe.The experiment intracorporal high vacuum environment of chamber is realized by vacuum system before experiment.The present apparatus can carry out continuous measurement analysis and visual inspection to the condensation under different steam pressures, different degree of supercoolings, different incoagulable gas ingredients and content, different surfaces architectural characteristic.
Description
Technical field
The present invention relates to a kind of steam containing fixed gas of object-oriented to condense visual experimental apparatus, belongs to condensing heat-exchange reality
Test field.
Background technique
The condensation of vapor is a kind of phase transition phenomena that nature is common.Vapor condensation is a kind of basic heat transfer shape
Formula can be realized the high efficient heat exchanging under the small temperature difference.The condensation of vapor be also energy conversion, environment conditioning, sea water desalination and
The important link of heat management system.But the vapor condensation in general industry equipment is necessarily accompanied with a small amount of fixed gas and deposits
It is being highly detrimental to the progress of heat exchange.The heat and mass effect for promoting the Condensation containing fixed gas, can be in certain degree
Upper saving natural resources, economic resources and social resources.For example, power plant heat can be improved in the steam exhaust condensation strengthened in condenser
Efficiency saves coal consumption；Refrigeration effect can be enhanced in the condensation and removal for strengthening the vapor on air conditioning evaporator coil surface, reduces
The accumulation of condensation water avoids the breeding of pathogen；In nuclear reactor safety protection, such as there are a large amount of high temperature and high pressure steam accumulations
In containment, high temperature and high pressure steam can not be fast and effeciently condensed, will lead to major accident.Therefore, to the water containing fixed gas
The reinforcing of steam condensation process carries out research and is of great significance.
Experimental study is the important means for studying vapor condensation heat-exchange process, and the actual effect of vapor condensation heat-exchange must
The verifying that need be tested.The document and the experimental provision mentioned in disclosed patent delivered at present, there are no will contain
The experimental provision of the steam condensation and visualization function perfect combination of incoagulable gas.In the document delivered, such as " day boat one
Number space condensation test device ground condensation test " experimental provision in a text can only carry out pure steam in the cold of condensation platform surface
It is solidifying, and condense platform and be integrally placed in liquid pool, non-condensing surface can be made to impact condensing surface；" dropwise condensation reinforcing contains
The steam condensation heat transfer mechanism of fixed gas " experimental provision introduced in a text uses excessive steam carrying out time condensation heel row
The case where empty method control experiment intracorporal pressure of chamber, system complex and unsuitable low pressure condensation；"Jumping-droplet-
Enhanced condensation on scalable superhydrophobic nanostructured surfaces " one
Condensation test device used herein does not have surface heating and restores function, can only carry out the out-tubular condensing of pure steam, while right
The control for testing steam pressure in cavity is not accurate enough.In published patent, number of patent application 201420533725.2
Patent document disclosed in " multifunction heat transfer actual training device " belong to real training chemical industry equipment, mainly for different form exchange heat
Device carries out training operation, is not suitable for carrying out condensation test research；In the patent document that number of patent application is 200820155479.6
Disclosed " single tube in-tube evaporation and condensation integrated experimental provision " can only carry out condensation test in single tube, can not be whole to drop
A life cycle carries out visual analyzing, and can not carry out the condensation test in the presence of fixed gas；Number of patent application is
" vapor condensation heat-exchange in a kind of width horizontal tube of the degree of supercooling containing multicomponent gas disclosed in 201710168093.2 patent document
Experimental system " is although multicomponent gas in-tube condensation experiment can be carried out, also just for single tube；Number of patent application is
" the vapor condensation heat-exchange experimental provision containing multicomponent incoagulable gas " disclosed in 201210540382.8 patent document
" it can be achieved what Natural Circulation was coupled with forced circulation disclosed in the patent document for being 201310084890.4 with number of patent application
Condensation heat-transfer experiment device ", can only be for normal pressure and the vertical tube out-tubular condensing of pressure above due to the limitation of experimental provision structure
Process is tested, and is tested cavity wall surface and lacked heating device.
Summary of the invention
Experiment tube is realized using recirculated cooling water it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of
Duan Hengwen, research pure steam or the steam containing incoagulable gas are managed outer cold in different structure, the Horizontal single-pipe of size or tube bank
Mechanism and the experimental provision for realizing visual inspection, can be to different steam pressures, different degree of supercoolings, difference not using the present apparatus
Condensation under solidifying property gas componant and content, different surfaces architectural characteristic carries out continuous measurement analysis and visual inspection,
Effective means is provided to the further understanding of condensation to realize.
The object of the present invention is achieved like this:
A kind of steam containing fixed gas of object-oriented condenses visual experimental apparatus, the device include steam supply system,
Air supply system, other gas supply systems, cooling water system, visualized experiment body and data collection system, visualization are real
It tests body to be made of the experiment pipeline section of experiment cavity and setting in the cavity, cavity side connects main gas supply line, main gas supply line
It is equipped with motor-driven valve, is connected after steam supply system, air supply system, other gas supply systems are in parallel with main gas supply line
It connects, experiment pipeline section inlet and outlet are connected with cooling water system, and experiment cavity connects vacuum system；Cooling water is under the action of water pump
Enter in experiment pipeline section through flowmeter, is returned in water bath with thermostatic control after exchanging heat in experiment pipeline section by return pipe.Flowmeter and water pump
Between pipeline be equipped with flow control valve adjust cooling water flow.The experiment intracorporal height of chamber is realized by vacuum system before experiment
Vacuum environment.The electric heater unit tested in each wall surface of cavity that is laid in can prevent steam from condensing on wall surface and form,
Measurement accuracy is improved, visualization requirements are made up to；Electric heater unit can play drying cavity when testing and starting simultaneously
Effect, to improve the vacuum degree of cavity.
The data collection system includes temperature acquisition system, pressure acquisition system, flow collection system and gas componant
Analysis system；
Temperature acquisition system is formed by being arranged in following thermocouple everywhere: the thermocouple of experiment pipeline section import and export is inserted
Enter to test that thermocouple at chamber central, be laid in the thermocouple tested in six wall surfaces of cavity；Pressure acquisition system is by arranging
Pressure sensor composition at the top of experiment cavity；Flow collection system is by being arranged in the vortex-shedding meter in steam pipe line exit
Composition；Gas composition analysis system is made of the intracorporal probe tube group of loading test chamber, shut-off valve and gas composition analyzer.It is right
In the more demanding position of temperature, pressure measurement accuracy, mountable pointer instrument is compared.All measured parameters can be through
It crosses data collecting card input computer to be monitored, store, calculate, analyzes and use so as to the data in later period.
Preferably, the steam supply system includes steam generator, steam pipe line, and steam pipe line is equipped with steam flow
Regulating valve and vortex-shedding meter, steam pipe line install insulating layer additional outside.It installs insulating layer outside steam pipe line additional, reduces steam heat loss,
Preventing steam condensation from generating two-phase flow influences measurement.The insulating layer outside insulating layer and cooling water pipeline outside steam pipe line can be with
Increase system stability.Steam pipe line is equipped with vortex-shedding meter, can recorde steam condensing rate under limit, as reality
Test the reference of result.
Preferably, the air supply system includes air compressor machine, air accumulator and air line, and air line is equipped with air
Flow control valve.
Preferably, other described gas supply systems include high-pressure gas cylinder, pressure reducing valve and other gas lines, other gas
Fluid line is equipped with gas flow regulating valve.
Preferably, the cooling water system is made of water bath with thermostatic control, water pump, flowmeter, the pipe between flowmeter and water pump
Line be equipped with flow control valve, cooling water system with experiment pipeline section inlet and outlet be connected composition circulation loop, circulation loop it is minimum
Point sets a branch and sets drain valve, installs insulating layer outside all circulating water pipes additional.
Preferably, the experiment cavity is equipped with multiple flange-interfaces, and it is cooling that left side flange-interface is separately connected outer loop
Water lines, main gas supply line and probe tube group；Top flange interface is connected to two temperature sensors and a pressure sensor, temperature
Degree sensor probe is located at experiment pipeline section cooling water inlet and exit, and pressure sensor probe is located in experiment cavity；
Right flange interface is separately connected vacuum system and temperature sensor, and temperature sensor probe is located in experiment cavity, tests chamber
Vent valve is housed at the top of body.
Preferably, the experiment cavity is forward and backward, upper, right side wall surface is respectively equipped with quartz glass flange form, tests cavity
Electric heater unit and heat-preservation cotton are laid in each wall surface, surface covers mirror surface aluminium sheet.
Preferably, the vacuum system is made of vacuum pump, vacuum valve and bellows, and vacuum system and experiment cavity connect
It is logical.
Preferably, the motor-driven valve is according to experiment itself aperture of cavity internal pressure negative-feedback regu- lation.
Preferably, the probe tube group is made of several probe tubes, gaseous mixture pass through probe tube group after enter gas at
Divide analyzer, analysis result passes computer back through data collecting card, and probe tube is along experiment length of pipe section direction close to experiment tube table
Face is evenly arranged, and the pipeline between probe tube group and gas composition analyzer is equipped with shut-off valve.Preferably, probe tube group is by four
Root probe tube is constituted, and four probe tubes are evenly arranged along experiment length of pipe section direction close to experiment pipe surface, is collected and recorded and is leaned on
The composition transfer situation of the fixed gas of nearly condensing surface, measurement result take the average value of each measurement site numerical value.Gaseous mixture is logical
Over sampling Guan Zuhou enters gas composition analyzer, analyzes result through data collecting card and passes computer back.
Steam flow is controlled using motor-driven valve, and control precision is high, while it is constant to may be implemented the experiment intracorporal pressure of chamber, with
It is compared using the experimental provision of excess steam time condensation, condenser and air extractor etc. is omitted, system more simplifies, for
Realize that the condensation under lower pressure is highly beneficial.
Recirculated cooling water uses water bath with thermostatic control temperature control, can accurately realize the condensation under different surfaces degree of supercooling, tests model
It encloses wide；Water bath with thermostatic control simultaneously with heating surface, can make the lime set evaporation of accumulation become initial surface to repeat to test.
The different wall surfaces of experiment cavity are provided with multiple forms, can be with multi-faceted polishing, to realize to horizontal experiment tube segment table
The condensation water whole life cycle in face carries out visual analyzing.
The beneficial effects of the present invention are: realizing experiment pipeline section constant temperature using recirculated cooling water, pure steam is studied or containing not
The steam condensation mechanism of solidifying property gas simultaneously realizes visual inspection, provides effectively to realize the further understanding of condensation
Means.The function of the device has: (1) studying pure steam or the steam containing incoagulable gas in different structure, the level of size
Single tube or tube bank manage outer cold and manage and realize visual inspection；(2) industrial actual conditions are simulated using the present apparatus, it can be to difference
Condensation under steam pressure, different degree of supercoolings, different incoagulable gas ingredients and content, different surfaces architectural characteristic carries out
Continuous measurement analysis and visual inspection；(3) fixed gas ingredient and content near surface are obtained when the condensation of steam containing fixed gas
Consecutive variations analyze influence of the fixed gas to condensation process；(4) Real-time Monitoring Data, continuous acquisition data；(5) surface is subcooled
Degree can be in a wide range of interior adjusting.
Detailed description of the invention
Fig. 1 is flow chart of the invention；
Fig. 2 is experiment cavity cross-section figure；
Fig. 3 is the connection figure for testing each face of cavity, according to the visual angle of Fig. 1, is followed successively by right side from left to right from top to bottom
Face, front, top surface, the back side, left side.
In figure: water bath with thermostatic control 1, drain valve 2, water pump 3, flow control valve 4, flowmeter 5, steam generator 6, steam flow
Regulating valve 7, vortex-shedding meter 8, air compressor machine 9, air accumulator 10, air flow rate adjustment valve 11, high-pressure gas cylinder 12, pressure reducing valve 13,
Gas flow regulating valve 14, motor-driven valve 15, probe tube group 16, shut-off valve 17, gas composition analyzer 18, cavity electric heater unit
19, data collecting card 20, computer 21, experiment cavity 22, temperature sensor 23, vent valve 24, pressure sensor 25, vacuum valve
26, vacuum pump 27, bellows 28, form 29, thermal insulation material 30, experiment pipeline section 31, main gas supply line 32, mirror surface aluminium sheet 33, cold
But water interface flange 34, backup flange 35, cooling-water temperature sensor interface flange 36, vent valve interface flange 37, bellows
Interface 38, cavity temperature sensor interface flange 40, main steam line interface flange 41, takes pressure sensor interface flange 39
Sample pipe group interface flange 42.
Specific embodiment
Further detailed description is done to the present invention with reference to the accompanying drawing:
It mainly include steam supply system, air supply system, other gas supply systems, cooling water system, visualization
Test body and data collection system.
Steam supply system generates steam by steam generator 6, and steam initial flow is controlled by steam flow control valve 7,
Vortex-shedding meter 8 records integrated flow and instantaneous flow.
Air supply system is made of air compressor machine 9, air accumulator 10, is entered air accumulator 10 after air compression, is reached setting
Enter main gas supply line 32 after pressure.
Other gas supply systems are made of high-pressure gas cylinder 12, pressure reducing valve 13, other gases are passed through from high-pressure gas cylinder 12
Pressure reducing valve 13, which depressurizes, laggard becomes owner of gas supply line 32.
Cavity 22 is tested in the main connection of gas supply line 32, sets motor-driven valve 15 on pipeline, can be negative according to the experiment intracorporal pressure of chamber
Feedback regulation itself aperture is to control steam flow.Steam is condensed in the experiment intracorporal experiment tube section surface of chamber.
Cooling water enters in experiment pipeline section 31 under the action of water pump 3 through flowmeter 5, by returning after exchanging heat in experiment pipeline section
Water pipe returns in water bath with thermostatic control 1.Pipeline between flowmeter 5 and water pump 3 is equipped with flow control valve 4, and circuit minimum point sets row
Water valve 2.
The experiment intracorporal high vacuum environment of chamber is realized to exclude fixed gas by vacuum system before experiment, vacuum system is by true
Empty valve 26, vacuum pump 27, bellows 28 form, and bellows can play compensation vacuum pump and experiment under the premise of guaranteeing sealing
The effect of cavity being mutually displaced.
The electric heater unit 19 tested in each wall surface of cavity that is laid in can prevent steam from condensing on wall surface and form,
Improve measurement accuracy and visual quality；Electric heater unit 19 can play the role of drying cavity when testing and starting simultaneously,
To improve the vacuum degree of cavity.
It installs insulating layer outside steam pipe line additional, reduces steam heat loss, preventing steam condensation from generating two-phase flow influences measurement.
The insulating layer outside insulating layer and cooling water pipeline outside steam pipe line can increase system stability.
Steam pipe line is equipped with vortex-shedding meter 8, can recorde steam condensing rate under limit, as experimental result
Reference.
Temperature acquisition system is formed by being arranged in following thermocouple everywhere: the thermocouple of experiment pipeline section import and export is inserted
Enter to test the thermocouple at 22 center of cavity, be laid in the thermocouple being heated in experiment six wall surfaces of cavity.
Pressure acquisition system is made of the pressure sensor 25 for being arranged in 22 top of experiment cavity.
Flow collection system is made of the vortex-shedding meter 8 for being arranged in steam pipe line exit.For temperature, pressure measurement
The mountable pointer instrument in the higher position of required precision compares.
Probe tube group 16 is made of four probe tubes.Four probe tubes are along experiment 31 length direction of pipeline section close to experiment tube table
Face is evenly arranged, and collects and records the composition transfer situation of the fixed gas close to condensing surface.Gaseous mixture passes through probe tube group 16
Enter gas composition analyzer 18 afterwards, measurement result takes the average value of each measurement site numerical value, and analysis result is acquired through data
Card 20 passes computer 21 back.
All measured parameters can be monitored, store, calculate by data collecting card input computer, so as to the later period
Data analysis uses.
Steam flow is controlled using motor-driven valve 15, and control precision is high, while the pressure that may be implemented in experiment cavity 22 is permanent
It is fixed, compared with using the experimental provision of excess steam time condensation, condenser and air extractor etc. is omitted, system is simpler
Change, for realizing that the condensation under lower pressure is highly beneficial.
Recirculated cooling water uses 1 temperature control of water bath with thermostatic control, can accurately realize the condensation under different surfaces degree of supercooling, tests model
It encloses wide；Water bath with thermostatic control 1 simultaneously with heating surface, can make the lime set evaporation of accumulation become initial surface to repeat to test.
The different wall surfaces of experiment cavity 22 are provided with multiple forms, can test pipeline section to level to realize with multi-faceted polishing
The condensation water whole life cycle on surface carries out visual analyzing.
In one particular embodiment of the present invention, the experiment cavity cross-section of visualized experiment body is as shown in Fig. 2, sectional view
Illustrate the relative position of each pipeline in experiment cavity.Wherein form 29 can carry out side polishing, be wrapped in cooling water and follow
Thermal insulation material 30 outside loop back path can prevent steam from testing the pipeline surface condensation except pipeline section 31, and it is accurate to improve experiment
Degree.
In one particular embodiment of the present invention, the connection in each face of cavity is tested as shown in figure 3, wherein on right side
Being provided with a form 29 can be used for human eye monitoring or side polishing；Front be provided with a form 29 for visualize shooting, three
Vacuum flange is respectively as cooling water connector flange 34 and a backup flange 35；Left side is opened there are four vacuum flange, is distinguished
As main steam line interface flange 41, probe tube group interface flange 42 and two backup flanges 35；The back side is provided with a form
29 and four vacuum flanges, form 29 can be used as human eye monitoring or back side polishing, four vacuum flanges are used separately as pressure sensing
Device interface flange 39, cavity temperature sensor interface flange 40 and two backup flanges 35；Top surface is provided with a form 29, four
Vacuum flange and a ripple interface tube 38, form 29 can be used as human eye monitoring or top polishing, four vacuum flanges are used respectively
Make cooling-water temperature sensor interface flange 36, vent valve interface flange 37 and a backup flange 35.
It is tested for pure steam condensing heat-exchange, technical solution 1 is: cooling water side, deionization will be added in water bath with thermostatic control 1
Water starts water pump 3, makes cooling water in experiment 31 internal circulation flow of pipeline section, concurrently set bath temperature and wait for specified height of water level
It reaches stable.Cooling water successively passes through flow control valve 4, flowmeter 5 enters experiment pipeline section 31, returns after exchanging heat in pipeline section
Return water bath with thermostatic control 1.Cooling water flow is adjusted using flow control valve 4.Deionized water will be added in steam generator 6 in steam side
To specified height of water level, start steam generator 6, opening top vent valve is after it reaches specified pressure to be discharged air, row
Top vent valve is closed after the completion of gas.It repeats exhaust and reaches specified pressure to it later twice.Computer 21 is opened to adopt with data
Collecting system records all initial parameter values to be measured, opens 19 heating wall of cavity electric heater unit and makes up to set temperature simultaneously
It maintains two to three minutes.Experiment cavity door is closed, vent valve 24 is closed, vacuum pump 27 is first opened and opens vacuum valve 26 again, to cavity
It is vacuumized.Parameters such as all temperature, pressures are stablized by data collection system acquisition and recording to temperature, pressure during this,
Cavity internal pressure reaches 1Pa hereinafter, first close vacuum valve 26 closes vacuum pump 27 again, successively opens steam flow control valve 7 and electronic
15 automatic mode of valve, steam is passed through into cavity.When cavity internal pressure is stablized in setting value, 15 aperture of motor-driven valve no longer changes,
8 instantaneous flow value of vortex-shedding meter records data after stablizing.Can change in experimentation 15 pressure set points of motor-driven valve or
Cooling water temperature is to measure the condensing heat-exchange effect under different pressures or degree of supercooling.
For the vapor condensation heat-exchange experiment containing air, technical solution 2 is: cooling water side and the same technical side of steam side
Case 1.Air side, starting air compressor machine 9 are inflated into air accumulator 10, close air compressor machine 9 after reaching specified pressure.Open computer 21
With data collection system, all initial parameter values to be measured are recorded, opening 19 heating wall of cavity electric heater unit, which makes up to, to be set
Determine temperature and maintains two to three minutes.Experiment cavity door is closed, vent valve 24 is closed, vacuum pump 27 is first opened and opens vacuum valve again
26, cavity is vacuumized.The parameters such as all temperature, pressures are by data collection system acquisition and recording during this, to temperature,
Pressure is stablized, and cavity internal pressure reaches 1Pa hereinafter, first close vacuum valve 26 closes vacuum pump 27 again.First motor-driven valve 15 is transferred to manually
Mode fully opens, and slowly adjusts air flow rate adjustment valve 11 and is passed through air into cavity to required pressure, closes air mass flow
Regulating valve 11 and motor-driven valve 15.Steam flow control valve 7 and 15 automatic mode of motor-driven valve are successively opened, steaming is passed through into cavity
Vapour.When cavity internal pressure is stablized in setting value, 15 aperture of motor-driven valve no longer changes, and 8 instantaneous flow value of vortex-shedding meter stablizes it
After record data.15 pressure set points of motor-driven valve or cooling water temperature be can change in experimentation to measure different pressures or mistake
Condensing heat-exchange effect under cold degree.
For the vapor condensation heat-exchange experiment containing multicomponent fixed gas, technical solution 3 is: cooling water side and steam side
With technical solution 1.Computer 21 and data collection system are opened, all initial parameter values to be measured are recorded, opens cavity electric heating
19 heating wall of device makes up to set temperature and maintains two to three minutes.Experiment cavity door is closed, closes vent valve 24, first
It opens vacuum pump 27 and opens vacuum valve 26 again, cavity is vacuumized.Parameters such as all temperature, pressures are adopted by data during this
Collecting system acquisition and recording is stablized to temperature, pressure, and cavity internal pressure reaches 1Pa hereinafter, first close vacuum valve 26 closes vacuum pump again
27.Motor-driven valve 15 is first transferred to manual mode to fully open, the pressure reducing valve 13 of gas high pressure storage cylinder 12 needed for opening, by gas
Decompression, slowly adjusting gas flow regulating valve 14 is passed through gas with various into cavity to respective required pressure, closes gas flow
Regulating valve 14 and motor-driven valve 15.Shut-off valve 17 is opened, the content that gas composition analyzer 18 confirms multicomponent gas is opened.Successively
Steam flow control valve 7 and 15 automatic mode of motor-driven valve are opened, steam is passed through into cavity.When cavity internal pressure stabilization is being set
Value, 15 aperture of motor-driven valve no longer change, and 8 instantaneous flow value of vortex-shedding meter records data after stablizing, and records gas componant
Variation.15 pressure set points of motor-driven valve or cooling water temperature be can change in experimentation to measure under different pressures or degree of supercooling
Condensing heat-exchange effect.
Claims (10)
1. a kind of steam containing fixed gas of object-oriented condenses visual experimental apparatus, which includes steam supply system, sky
Gas supply system, other gas supply systems, cooling water system, visualized experiment body and data collection system, it is characterised in that:
Visualized experiment body is made of the experiment pipeline section of experiment cavity and setting in the cavity, and cavity side connects main gas supply line, main
Gas supply line is equipped with motor-driven valve, after steam supply system, air supply system, other gas supply systems are in parallel with main confession
Gas pipeline connection, experiment pipeline section inlet and outlet are connected with cooling water system, and experiment cavity connects vacuum system；
The data collection system includes temperature acquisition system, pressure acquisition system, flow collection system and gas composition analysis
System；
Temperature acquisition system is formed by being arranged in following thermocouple everywhere: the thermocouple of experiment pipeline section import and export, insertion are real
Test the thermocouple at chamber central, be laid in the thermocouple tested in six wall surfaces of cavity；Pressure acquisition system is by being arranged in reality
Test the pressure sensor composition at the top of cavity；Flow collection system is by being arranged in the vortex-shedding meter group in steam pipe line exit
At；Gas composition analysis system is made of the intracorporal probe tube group of loading test chamber, shut-off valve and gas composition analyzer.
2. a kind of steam containing fixed gas of object-oriented according to claim 1 condenses visual experimental apparatus, feature
Be: the steam supply system includes steam generator, steam pipe line, and steam pipe line is equipped with steam flow control valve and whirlpool
Street flowmeter, steam pipe line install insulating layer additional outside.
3. a kind of steam containing fixed gas of object-oriented according to claim 1 condenses visual experimental apparatus, feature
Be: the air supply system includes air compressor machine, air accumulator and air line, and air line is equipped with both air flow modulation
Valve.
4. a kind of steam containing fixed gas of object-oriented according to claim 1 condenses visual experimental apparatus, feature
Be: other described gas supply systems include high-pressure gas cylinder, pressure reducing valve and other gas lines, are set on other gas lines
There is gas flow regulating valve.
5. a kind of steam containing fixed gas of object-oriented according to claim 1 condenses visual experimental apparatus, feature
Be: the cooling water system is made of water bath with thermostatic control, water pump, flowmeter, and the pipeline between flowmeter and water pump is equipped with stream
Adjustable valve, cooling water system is connected with experiment pipeline section inlet and outlet constitutes circulation loop, and the minimum point of circulation loop sets a branch
And drain valve is set, install insulating layer outside all circulating water pipes additional.
6. a kind of steam containing fixed gas of object-oriented according to claim 1 condenses visual experimental apparatus, feature
Be: the experiment cavity is equipped with multiple flange-interfaces, and left side flange-interface is separately connected outer loop cooling water pipeline, main confession
Gas pipeline and probe tube group；Top flange interface is connected to two temperature sensors and a pressure sensor, and temperature sensor is visited
Head is located at experiment pipeline section cooling water inlet and exit, and pressure sensor probe is located in experiment cavity；Right flange connects
Mouth is separately connected vacuum system and temperature sensor, and temperature sensor probe is located in experiment cavity, is equipped at the top of experiment cavity
Vent valve.
7. a kind of steam containing fixed gas of object-oriented according to claim 1 condenses visual experimental apparatus, feature
Be: the experiment cavity is forward and backward, upper, right side wall surface is respectively equipped with quartz glass flange form, tests in each wall surface of cavity
Electric heater unit and heat-preservation cotton are laid, surface covers mirror surface aluminium sheet.
8. a kind of steam containing fixed gas of object-oriented according to claim 1 condenses visual experimental apparatus, feature
Be: the vacuum system is made of vacuum pump, vacuum valve and bellows, and vacuum system is connected to experiment cavity.
9. a kind of steam containing fixed gas of object-oriented according to claim 1 condenses visual experimental apparatus, feature
Be: the motor-driven valve is according to experiment itself aperture of cavity internal pressure negative-feedback regu- lation.
10. a kind of steam containing fixed gas of object-oriented according to claim 9 condenses visual experimental apparatus, feature
Be: the probe tube group is made of several probe tubes, and gaseous mixture enters gas composition analyzer after passing through probe tube group, point
Analysis result passes computer back through data collecting card, and probe tube is evenly arranged along experiment length of pipe section direction close to experiment pipe surface,
Pipeline between probe tube group and gas composition analyzer is equipped with shut-off valve.
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| CN112362689A (en) * | 2020-11-02 | 2021-02-12 | 浙江大学 | Condensation heat transfer transient measurement device and method based on thermochromatic liquid crystal |
| CN112415051A (en) * | 2020-11-21 | 2021-02-26 | 西安交通大学 | High-temperature heat pipe heat transfer performance and failure test experimental device |
| CN112964747A (en) * | 2021-03-10 | 2021-06-15 | 北京科技大学 | Gas condensation visualization and heat exchange characteristic detection device and method |
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| CN111192698A (en) * | 2020-01-08 | 2020-05-22 | 上海交通大学 | Wide-view-angle pressure-bearing and pressure-suppressing cooling impact process simulation system |
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| CN111929420A (en) * | 2020-07-07 | 2020-11-13 | 中煤陕西榆林能源化工有限公司 | Method and device for measuring combustible gas in steam |
| CN111929420B (en) * | 2020-07-07 | 2023-09-26 | 中煤陕西榆林能源化工有限公司 | Method and device for measuring combustible gas in steam |
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| CN112415051A (en) * | 2020-11-21 | 2021-02-26 | 西安交通大学 | High-temperature heat pipe heat transfer performance and failure test experimental device |
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| CN112964747A (en) * | 2021-03-10 | 2021-06-15 | 北京科技大学 | Gas condensation visualization and heat exchange characteristic detection device and method |
| CN112964747B (en) * | 2021-03-10 | 2022-04-22 | 北京科技大学 | Gas condensation visualization and heat exchange characteristic detection device and method |
| CN114295399A (en) * | 2021-12-29 | 2022-04-08 | 上海交通大学 | Visual testing arrangement of vapor chamber evaporimeter heat dispersion |
| CN114295399B (en) * | 2021-12-29 | 2023-09-01 | 上海交通大学 | Visual testing device for heat dissipation performance of vapor chamber evaporator |
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Application publication date: 20181207 |