CN107315025A - The pressure compensation and bleeder of HTHP thermal insulation test process - Google Patents
The pressure compensation and bleeder of HTHP thermal insulation test process Download PDFInfo
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- CN107315025A CN107315025A CN201610408779.XA CN201610408779A CN107315025A CN 107315025 A CN107315025 A CN 107315025A CN 201610408779 A CN201610408779 A CN 201610408779A CN 107315025 A CN107315025 A CN 107315025A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
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Abstract
The present invention relates to the pressure compensation and bleeder of a kind of adiabatic test process of HTHP, mainly solve in the prior art high temperature high voltage resistant ability, the problem of test result is inaccurate.Pressure compensation and bleeder of the invention by using a kind of adiabatic test process of HTHP, pressure-bearing kettle including can be resistant to 800 DEG C of high temperature and 30MPa high pressures, place inside pressure-bearing kettle container wall thickness be 0.2~0.3mm, stainless steel, the technical scheme that can be resistant to 800 DEG C of high temperature, volume and be the cylindrical calorimetric ponds of 100~110mL preferably solve above mentioned problem, available in the adiabatic test process of HTHP.
Description
Technical field
The present invention relates to the pressure compensation and bleeder of a kind of adiabatic test process of HTHP.
Background technology
For the calorimetric test for the purpose of process heat risk assessment, using thermal inertia factor is as low as possible, sample size is most
Reaction calorimetric pond more than possible can effectively avoid calorimetric pond from absorbing heat in itself and influence reaction system own temperature to raise
Process and reduce material proof load it is smaller and produce enlarge-effect, this has extremely important for process heat risk assessment
Meaning.
Thermal inertia factor can effectively be reduced using wall thickness thin calorimetric pond as far as possibleValue, but calorimetric pond can be reduced
Compressive resistance, during temperature rise, the pressure of reaction system is constantly raised, more than can be led after the cumulative maximum pressure in calorimetric pond
Calorimetric pond is caused to produce deformation or rupture.Now, compensation is certain in the external environment condition of calorimetric pond connects with calorimetric pond internal pressure value
Near inert gas, and lasting dynamic during calorimetric pond internal pressure is constantly elevated compensates certain pressure, then may be used
It is prevented effectively from calorimetric pond to deform upon or rupture, and the pressure changing inside calorimetric pond can be continued to monitor, until reaction is lost
Control.
At present, the adiabatic calorimetry test equipment of main flow is mainly the ARC adiabatic calorimetry instrument of THT companies of Britain production in the world
The VSP2 produced with FAI companies of the U.S. is released size calorimeter, and some other adiabatic calorimetry equipment test philosophy is all based on
State two kinds of adiabatic test equipments.ARC adiabatic calorimetries instrument in order to prevent calorimetric pond be unlikely to material decompose produce high pressure effect
Lower explosion, employs wall thickness, small volume and pressure-resistant calorimetric pond, without pressure compensating system, result in the thermal inertia of system
The factorValue is higher, it is impossible to provide the data of technique amplification.VSP2 employs temperature tracking and pressure compensated method is automatic
The pressure, temperature variation in adiabatic reaction runaway event is followed the trail of, but VSP2 heating system temperatures only up to be reached
250 DEG C, bearing capacity is no more than 13MPa, it is impossible to which the adiabatic reaction process to temperature more than 250 DEG C is tracked test.
Meanwhile, VSP2 pressure compensating system compensates in adiabatic runaway event to pressure-bearing kettle, the normal temperature that reacts outside calorimetric pond is lazy
Property gas material in certain cooling effect, absorbing reaction calorimetric pond can be produced to reaction calorimetric pond occur runaway reaction and produce
Heat, influence can be produced on test result.Drawn by German Nai Chi companies STA499C synchronous solvings and French C1-esteraseremmer-N
The micro- calorimeter reaction heat test results of nurse company C80 calculate that obtained adiabatic temperature rise data test obtained thermal insulation temperature with VSP2
Rising data has the provable this point of larger deviation.Therefore, realize using low-heat inertia factor calorimetric pond, avoid compensation lazy
Property gas to the cooling effect in calorimetric pond, while the thermal insulation that can also track the temperature and pressure situation of change of high-temperature and high-pressure conditions is anti-
Calorimetry system is answered, is had very important significance for process heat hazard assessment.According to literature search result, the current country is still
The pressure compensation and drainage method in high-temperature and high-pressure conditions adiabatic calorimetry test process are not set up and design.
The content of the invention
The technical problems to be solved by the invention, which are that high temperature high voltage resistant ability, test result are inaccurate in the prior art, asks
There is provided the pressure compensation and bleeder of a kind of adiabatic test process of new HTHP for topic.The device has test result accurate
True advantage.
To solve the above problems, the technical solution adopted by the present invention is as follows:A kind of pressure of the adiabatic test process of HTHP is mended
Repay and bleeder, include the cylindrical calorimetric pond of pressure-bearing kettle and the placement of pressure-bearing kettle inside, pressure-bearing kettle is top-loaded with for pressure release
The pressure sensor of rupture disk and high temperature high voltage resistant, side wall has the temperature sensor for testing pressure-bearing kettle internal temperature, amount
Hot pond is connected with the temperature sensor on the wall of pressure-bearing kettle side, pressure sensor and the charging of calorimetric pond and emptying control valve, temperature
Degree sensor is connected by data wire with computer control system;High-pressure compressor, gases at high pressure heating system, pressure
The control system that compensates and release is sequentially connected, and wherein vacuum pressure pump in pressure compensation and control system of releasing with vacuumizing electricity
Magnet valve connect, high-pressure compressor produce high-pressure inert gas by after gases at high pressure heating system heats with pressure compensation
And the pressure compensation magnetic valve in control system of releasing is connected, the Pressure Relief Valve in pressure compensation and control system of releasing is with holding
Kettle connection is pressed, gases at high pressure heating system and its temperature sensor, pressure compensation and control system of releasing pass through data wire and meter
Calculation machine control system is connected.
In above-mentioned technical proposal, it is preferable that computer control system is by data acquisition card, digital analog converter and preprogramming
Computer software is constituted.
In above-mentioned technical proposal, it is preferable that gases at high pressure heating system is by a set of high pressure resistant gas pressure vessel and heating system
Composition, is connected with high pressure compressed gas system and pressure compensation magnetic valve, for heating the inertia produced by high-pressure compression system
Gas.
In above-mentioned technical proposal, it is preferable that pressure compensation and control system of releasing are by control pressure compensation, pressure releasing respectively
Constituted with the three sets of high temperature high voltage resistant magnetic valves and its control system vacuumized, for carrying out in HTHP calorimetric test process
Inert gas pressure compensation, pressure releasing and test before pressure-bearing kettle and calorimetric pond in take out negative pressure.
In above-mentioned technical proposal, it is preferable that inert gas passes through pressure in filling insulation material, test process outside calorimetric pond
The control system that compensates and release enters in pressure-bearing kettle, plays a part of protection calorimetric pond.
In above-mentioned technical proposal, it is preferable that pressure releasing electromagnetic valve outlet pipeline is provided with pressure releasing pipeline cooler.
In above-mentioned technical proposal, it is preferable that pressure compensation magnetic valve, pressure releasing magnetic valve, vacuumize electromagnetic valve outlet mix
It is connected after conjunction with pressure compensation pipeline heater one end, the pressure compensation pipeline heater other end and pressure-bearing kettle, pressure compensation pipe
The pipeline that road heater is connected with pressure-bearing kettle is provided with pressure-bearing kettle pressure sensor.
In above-mentioned technical proposal, it is preferable that pressure-bearing kettle can be resistant to and be placed inside 800 DEG C of high temperature and 30MPa high pressures, pressure-bearing kettle
It is the cylindrical calorimetrics of 100~110mL that container wall thickness, which is 0.2~0.3mm, stainless steel, can be resistant to 800 DEG C of high temperature, volume
Pond.
The present invention provides one kind pressure compensation and drainage method suitable for high temperature and high pressure condition adiabatic calorimetry test process, is adopting
On the basis of low-heat inertia factor heat pond, realized by entering trip temperature Tracing Control to high pressure compressed gas to HTHP
Pressure compensation in adiabatic calorimetry test process and release, it is to avoid compensation inert gas makes it to the cooling effect in heat pond
Test result is more intended for the operating environment of industrialized unit closer to real working condition condition, its temperature control system, pressure
The design of the elements such as Force control system, pressure-bearing kettle and related pipe valve adds its tolerance to HTHP extreme operating condition.It is real
The pressure compensation of adiabatic calorimetry test process is carried out under present HTHP extreme condition and is released;Pressure compensation mistake can be eliminated
The cooling effect that inert gas is produced to calorimetric pond in journey;The requirement close to 800 DEG C of high temperature and 30MPa maximum pressures is met,
Achieve preferable technique effect.
Brief description of the drawings
Fig. 1 is the pressure compensation and bleeder schematic flow sheet of HTHP adiabatic calorimetry test process.
In Fig. 1,1- computer control systems, 2- vacuum pressure pumps, 3- high-pressure compressors, 4- one-way control valves, 5- are high
Press compressed gas heating system temperature sensor, 6- high pressure compressed gas heating system, 7- pressure releasing pipelines cooler, 8-
Pressure compensation and control system of releasing, 9- pressure compensations magnetic valve, 10- pressure releasings magnetic valve, 11- vacuumize magnetic valve,
12- pressure compensations pipeline heater, 13- pressure-bearing kettles pressure sensor, 14- pressure-bearings kettle are connected control valve, 15- amounts with calorimetric pond
Hot pond pressure sensor, 16- pressure-bearings kettle, 17- pressure-bearing kettles rupture disk, 18- calorimetrics pond, 19- pressure-bearing kettles temperature sensor, 20-
Calorimetric pond temperature sensor, the charging of 21- calorimetrics pond and emptying control valve.
Below by embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Embodiment
【Embodiment 1】
The pressure compensation and bleeder of a kind of adiabatic test process of HTHP, as shown in figure 1, including can be resistant to 800 DEG C
The pressure-bearing kettle of high temperature and 30MPa high pressures, place inside pressure-bearing kettle container wall thickness be 0.2~0.3mm, stainless steel, can
Resistance to 800 DEG C of high temperature, volume are the cylindrical calorimetric ponds of 100~110mL, and pressure-bearing kettle is top-loaded with rupture disk and Nai Gao for pressure release
The pressure sensor of warm high pressure, side wall has the temperature sensor for testing pressure-bearing kettle internal temperature, and calorimetric pond is held with being mounted in
Press temperature sensor, pressure sensor and the charging of calorimetric pond and emptying control valve connection on the wall of kettle side, calorimetric pond TEMP
Device and pressure-bearing kettle sensor are connected by data wire with computer control system;Vacuum pressure pump, high-pressure compressor, height
Pressure gas heating system, pressure compensation and control system of releasing are sequentially connected, and wherein vacuum pressure pump and pressure compensation and are released
Magnetic valve connection is vacuumized in control system, the high-pressure inert gas that high-pressure compressor is produced are heated by gases at high pressure
It is connected after system heating with the pressure compensation magnetic valve in pressure compensation and control system of releasing, pressure compensation and the control system that releases
Pressure Relief Valve in system is connected with pressure-bearing kettle, gases at high pressure heating system and its temperature sensor, pressure compensation and control of releasing
System processed is connected by data wire with computer control system.
Pressure compensation and bleed-off system are mainly comprised the following steps:
1) computer control system:It is made up of the computer software of data acquisition card, digital analog converter and preprogramming.
2) vacuum pressure pump:It is connected with vacuumizing magnetic valve, pressure in calorimetric pond and pressure-bearing kettle is evacuated to negative by test before starting
Pressure, for checking calorimetric pond air-tightness and toward liquid feeding state or Gaseous materials in calorimetric pond.
3) high-pressure compressor:It is connected with gases at high pressure heating system and pressure compensation magnetic valve, for producing high pressure pressure
Contracting gas, inert gas is compensated in adiabatic calorimetry test process into pressure-bearing kettle.
4) gases at high pressure heating system:It is made up of a set of high pressure resistant gas pressure vessel and heating system, with high pressure compressed gas
System is united and the connection of pressure compensation magnetic valve, for heating the inert gas produced by high-pressure compression system.
5) pressure compensation and control system of releasing:By the compensation of control pressure respectively, pressure releasing and the three sets of resistance to height vacuumized
Warm high-pressure solenoid valve and its control system composition, is mended for carrying out the inert gas pressure in HTHP calorimetric test process
Repay, pressure releasing and test before pressure-bearing kettle and calorimetric pond in take out negative pressure.
6) pressure-bearing kettle:800 DEG C of high temperature and 30MPa high pressures are can be resistant to, inside is placed filling outside calorimetric pond, calorimetric pond and protected
Inert gas is entered in pressure-bearing kettle by pressure compensation and control system of releasing in adiabator, test process, plays protection calorimetric
The effect in pond.
Wherein, vacuum pressure pump, high-pressure compressor are outsourcing, computer control system, high pressure compressed gas heating system
Unite to customize, pressure compensation and control system of releasing, pressure-bearing kettle are designed, designed and manufacture.
Temperature sensor, pressure sensor should be calibrated first, it is ensured that device each several part stainless steel pipeline, data wire connect
Connect normal, it is ensured that precision temperature and pressure testing system are normal, are then tested according to the following steps:
1) computer control system 1, Opening pressure compensation and Control System Software of releasing are opened;
2) calorimetric pond inlet valve 21 is closed, pressure-bearing kettle is opened and is connected control valve 14 with calorimetric pond, calorimetric pond is connected with pressure-bearing kettle
Together;
3) vavuum pump 2 is opened by computer control system 1 and vacuumizes magnetic valve 11, by pressure-bearing kettle 16 and calorimetric pond
Negative pressure is evacuated in 18, until take out it is motionless untill, closing vacuumizes magnetic valve 11, observation calorimetric pond 18 and pressure-bearing kettle
Whether pressure changes in 16, to check the air-tightness of pressure-bearing kettle 16.Close pressure-bearing kettle 16 and pressure sensor 15
Control valve is connected, magnetic valve 10 of releasing is opened, the pressure of pressure-bearing kettle 16 is returned to normal pressure, observation calorimetric pond 18
Interior pressure change, to check calorimetric pond air-tightness;
4) liquid or Gaseous materials are added in calorimetric pond by calorimetric pond inlet control valve 21, closes the charging control of calorimetric pond
Valve 21, opens the one-way control valve 4 between connection high-pressure compressor 3 and gases at high pressure heating system 6, opens
Pressure compensation and the software of control system 8 of releasing;
5) in test process, computer control system 1 first sets temperature to heat in calorimetric pond 18 according to program, will be logical
Environment temperature feedback is crossed in the pressure-bearing kettle that the temperature sensor 19 in pressure-bearing kettle 16 is collected to computer control system
1, output order is automatically controlled by it and opens the high pressure that gases at high pressure heating system 6 is produced to high-pressure compressor
Inert gas is heated, and its temperature is not less than 10 DEG C of environment temperature in pressure-bearing kettle;
6) pressure following temperature is raised and gradually increased, pressure superpressure pressure-bearing kettle pressure in equivalent speed pond 18 in calorimetric pond 18
During 0.3MPa, computer control system automatically turns on pressure compensation magnetic valve 9, by the indifferent gas after heating
Body is compensated into pressure-bearing kettle automatically, the pressure differential in calorimetric pond and pressure-bearing kettle is in the range of 0.1~0.3MPa;
7) in test process, if calorimetric pond is less than 0.1MPa with the pressure differential in pressure-bearing kettle, computer control system can be certainly
Dynamic Opening pressure is released magnetic valve 10, and the inert gas in pressure-bearing kettle is expelled into air by pressure releasing magnetic valve
In, prevent that hypertonia causes calorimetric pond to deform upon in pressure-bearing kettle;
8) after experiment terminates, experimental data is preserved, according to the orderly release each part opposite with installation, associated pipe is arranged
And circuit, by calorimetric pond cleaning, drying, it is standby.
Claims (8)
1. the pressure compensation and bleeder of a kind of adiabatic test process of HTHP, including put inside pressure-bearing kettle and pressure-bearing kettle
The cylindrical calorimetric pond put, pressure-bearing kettle is top-loaded with the pressure sensor of the rupture disk and high temperature high voltage resistant for pressure release, side wall
There are the temperature sensor for testing pressure-bearing kettle internal temperature, calorimetric pond and the temperature sensor on the wall of pressure-bearing kettle side, pressure
Force snesor and the charging of calorimetric pond and emptying control valve connection, temperature sensor are connected by data wire and computer control system
Connect;High-pressure compressor, gases at high pressure heating system, pressure compensation and control system of releasing are sequentially connected, wherein vacuum
Compression pump is connected with the magnetic valve that vacuumizes in pressure compensation and control system of releasing, and the high pressure that high-pressure compressor is produced is lazy
Property gas by after gases at high pressure heating system heats with pressure compensation and control system of releasing pressure compensation magnetic valve connect
Connect, the Pressure Relief Valve in pressure compensation and control system of releasing is connected with pressure-bearing kettle, gases at high pressure heating system and its temperature
Sensor, pressure compensation and control system of releasing are connected by data wire with computer control system.
2. the pressure compensation and bleeder of the adiabatic test process of HTHP according to claim 1, it is characterised in that calculate
Machine control system is made up of the computer software of data acquisition card, digital analog converter and preprogramming.
3. the pressure compensation and bleeder of the adiabatic test process of HTHP according to claim 1, it is characterised in that high pressure
Gas heating system is made up of a set of high pressure resistant gas pressure vessel and heating system, is mended with high pressure compressed gas system and pressure
Magnetic valve connection is repaid, for heating the inert gas produced by high-pressure compression system.
4. the pressure compensation and bleeder of the adiabatic test process of HTHP according to claim 1, it is characterised in that pressure
Compensate and release control system by the compensation of control pressure respectively, pressure releasing and the three sets of high temperature high voltage resistant magnetic valves vacuumized and
Its control system is constituted, for carrying out the compensation of the inert gas pressure in HTHP calorimetric test process, pressure releasing and survey
Negative pressure is taken out in pressure-bearing kettle and calorimetric pond before examination.
5. the pressure compensation and bleeder of the adiabatic test process of HTHP according to claim 1, it is characterised in that calorimetric
Inert gas is entered in pressure-bearing kettle by pressure compensation and control system of releasing in filling insulation material, test process outside pond,
Play a part of protection calorimetric pond.
6. the pressure compensation and bleeder of the adiabatic test process of HTHP according to claim 1, it is characterised in that pressure
Magnetic valve outlet line of releasing is provided with pressure releasing pipeline cooler.
7. the pressure compensation and bleeder of the adiabatic test process of HTHP according to claim 1, it is characterised in that pressure
Compensation electromagnetic valve, pressure releasing magnetic valve, vacuumize electromagnetic valve outlet mixing after be connected with pressure compensation pipeline heater one end,
The pressure compensation pipeline heater other end and pressure-bearing kettle, pressure compensation pipeline heater are provided with the pipeline being connected with pressure-bearing kettle
Pressure-bearing kettle pressure sensor.
8. the pressure compensation and bleeder of the adiabatic test process of HTHP according to claim 1, it is characterised in that pressure-bearing
Kettle can be resistant to 800 DEG C of high temperature and 30MPa high pressures, placed inside pressure-bearing kettle container wall thickness be 0.2~0.3mm, stainless steel,
Can be resistant to 800 DEG C of high temperature, volume is the cylindrical calorimetric ponds of 100~110mL.
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Cited By (2)
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CN108490025A (en) * | 2018-03-30 | 2018-09-04 | 沈阳化工研究院有限公司 | A kind of the calorimetric test method and device of continuous flow gas phase reaction process |
CN113740376A (en) * | 2020-05-28 | 2021-12-03 | 应急管理部化学品登记中心 | Quantitative sample introduction device and method for converting normal-temperature gaseous substances into low-temperature liquid |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108490025A (en) * | 2018-03-30 | 2018-09-04 | 沈阳化工研究院有限公司 | A kind of the calorimetric test method and device of continuous flow gas phase reaction process |
CN108490025B (en) * | 2018-03-30 | 2023-08-08 | 沈阳化工研究院有限公司 | Calorimetric test method and device for continuous flow gas phase reaction process |
CN113740376A (en) * | 2020-05-28 | 2021-12-03 | 应急管理部化学品登记中心 | Quantitative sample introduction device and method for converting normal-temperature gaseous substances into low-temperature liquid |
CN113740376B (en) * | 2020-05-28 | 2024-06-25 | 应急管理部化学品登记中心 | Quantitative sample injection device and method for converting normal-temperature gaseous substances into low-temperature liquid |
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Application publication date: 20171103 |