CN105628733A - Device and method for monitoring change in temperature field characteristics in gas hydration separation reaction process - Google Patents
Device and method for monitoring change in temperature field characteristics in gas hydration separation reaction process Download PDFInfo
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- CN105628733A CN105628733A CN201610028097.6A CN201610028097A CN105628733A CN 105628733 A CN105628733 A CN 105628733A CN 201610028097 A CN201610028097 A CN 201610028097A CN 105628733 A CN105628733 A CN 105628733A
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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
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
Abstract
The invention relates to a device and method for monitoring change in temperature field characteristics in a gas hydration separation reaction process and relates to the field of coal. The invention aims to meet the requirements for the monitoring method and device for heat and mass transfer in the gas hydration separation reaction process. An application method of a multilayer three-dimensional distribution temperature sensor in a gas hydration separation test comprises the following steps: pressing gas into a visual reaction kettle by utilizing a gas pressurization system; fully contacting with a solution composed of dynamic and thermodynamic accelerants or pure water in the visual reaction kettle; enabling methane in gas to form hydrate under a certain temperature condition; and monitoring the temperature change in different levels of the liquid in the forming process of the hydrate by utilizing the multilayer three-dimensional distribution temperature sensor in the visual reaction kettle. The method provided by the invention is suitable for monitoring the temperature change in other occasions in the field of the hydrate.
Description
Technical field
The present invention relates to coal field.
Background technology
Coal mine gas is with CH4For main body hydro carbons mixing gas, result from generation and the metamorphic process of coal, CH4Also being the gas with high greenhouse effect, its greenhouse effect exceeds CO220 times have a surplus, ozone depletion is act as CO27 times, in coal production, a large amount of gas are emptied by mine ventilation, and atmospheric environment causes having a strong impact on, meanwhile, CH4Gas is also a kind of high-quality, efficient, clean and safe new forms of energy, and compared with burning with coal body, gas combustion produced ash deal is the 6.8 �� 10 of coal body burning-3, sulfur dioxide burst size is the 1.4 �� 10 of coal body burning-3, carbon dioxide releasing amount is the 0.6 of coal body burning. CH4Can as industrial fuel, chemical raw material and life fuel etc. Therefore, Appropriate application gas resources is very necessary.
At present due to restriction that low concentration gas is utilized by prior art and equipment, cause gas utilization amount relatively fewer, utilization rate is on the low side, gas hydration solidification separation method, low concentration gas can be realized and efficiently separate the purpose of purification, this technology has separation condition gentleness, void fraction is high, store the characteristics such as safety, and gas hydration curing process is constrained in the impact of Mass and heat transfer condition, therefore, gas hydration separation process temperature field distribution and heat transfer control are the keys of gas hydration curing isolation technics, and do not have at present at the temperature monitoring method of gas hydration separation process and device for detecting temperature, therefore a kind of device and method monitoring the change of gas hydration separation course of reaction Characteristics of Temperature Field has been invented, can control gas hydration separation process temperature field distribution with operation temperature/pressure, hydration separation speed, the influence factors such as hydrate purity interact, utilization for gas provides new solution. .
Summary of the invention
The present invention is in order to meet the demand of the temperature monitoring method to gas hydration separation process and device, it is proposed that a kind of device and method monitoring gas hydration separation process temperature field changing features.
A kind of device monitoring gas hydration separation process temperature field changing features, it includes gas storage tank 1, opens gas stop valve 2, air compressor 3, gas boosting pump 4, gas drying cylinder 5, air inlet stop valve 6, pressure transducer 7, high-low temperature controller 8, array temperature sensor 9, data acquisition unit 10, industrial computer 11 and visual reactor 12;
Gas storage tank 1 is used for storing gas; Air compressor 3 and gas booster pump 4 are for being pressed in visual reactor 12 by the gas in gas storage tank 1;
Visual reactor 12 is used for placing solution, and reacts offer place for gas and solution; The top of visual reactor 12 is provided with air inlet 14;
Open gas stop valve 2 and be arranged between gas storage tank 1 and gas drying cylinder 5, for controlling opening and disconnecting of gas circuit;
Gas drying cylinder 5 is for drying the gas of gas storage tank 1 output;
Air inlet stop valve 6 is arranged between gas drying cylinder 5 and pressure transducer 7, for controlling the air inlet in visual reactor 12;
Pressure transducer 7 is arranged on air inlet 14 place of visual reactor 12, for monitoring the pressure in visual reactor 12 in real time, and sends the pressure of monitoring to data acquisition unit 10;
Visual reactor 12 is arranged in high-low temperature controller 8, and high-low temperature controller 8 is for providing reaction temperature for visual reactor 12;
Array temperature sensor 9 is in bending distribution, and divides n layer to be distributed in below the liquid level of solution in visual reactor 12 from bottom to up, for monitoring the temperature in visual reactor 12 in real time; The temperature of monitoring is sent to data acquisition unit 10 by array temperature sensor 9; N is the positive integer be more than or equal to 3;
Data acquisition unit 10 sends to industrial computer 11 for the temperature and pressure that will receive;
Industrial computer 11, for array temperature sensor 9 and pressure transducer 7 are calibrated and are returned to zero, receives the temperature and pressure that data acquisition unit 10 sends simultaneously.
A kind of method monitoring gas hydration separation process temperature field changing features, the method is based on what a kind of device monitoring gas hydration separation process temperature field changing features realized; Specifically comprising the following steps that of the method
Step one, check and the air-tightness of a kind of device monitoring gas hydration separation process temperature field changing features after air-leakage test is qualified, carry out next step;
Step 2, the solution good by concentration proportioning or pure water are injected in visual reactor 12, and submergence array temperature sensor 9, close the lid of visual reactor 12;
Array temperature sensor 9 and pressure transducer 7 are calibrated and return to zero by step 3, industrial computer 11, simultaneously by arranging the temperature of high-low temperature controller 8, keep temperature in visual reactor 12 to designated value;
Step 4, opening gas stop valve 2 and air inlet stop valve 6, the gas in gas storage tank 1, by the effect of air compressor 3 and gas booster pump 4, makes gas pass through gas drying cylinder 5 and is pressed in visual reactor 12 by air vent 14 after drying;
The temperature of monitoring is sent to industrial computer 11 by step 5, array temperature sensor 9 by data acquisition unit 10; The pressure of monitoring is sent to industrial computer 11 by pressure transducer 7 by data acquisition unit 10; Industrial computer 11 records, stores, displays temperature and pressure;
Step 6, when on industrial computer 11, display reaches goal pressure, close make and break gas stop valve 2 and air inlet stop valve 6.
Beneficial effect: the invention discloses the gas hydration separation experimental provision of a set of assembling multilamellar position solid districution temperature sensor and method. Multilamellar position solid districution temperature sensor (array temperature sensor) application process in gas hydration separation is tested: utilize gas pressurization system in mash gas extraction micro-indentation test device (visual reactor), the solution constituted with kinetics, thermodynamics accelerator in a device is fully contacted, the methanogenesis hydrate that will make under certain temperature conditions in gas, utilizes the variations in temperature of solution different layers position in the process of whole gas hydrate synthesis of the multilamellar position solid districution temperature Sensor monitoring in reaction unit.
The inventive method and device, the simple and clear form that the heat transfer of hydration separation process and the process of variations in temperature are changed with numeral shows. Disclosure satisfy that and carry out the needs that mash gas methane hydration separation process temperature field distribution measures and heat transfer controls. Apparatus and method of the present invention, fill up the blank of coal mine gas hydration separation process temperature field feature acquisition device and method now, can temperature field data in Accurate Determining course of reaction, meet the demand to the heat and mass monitoring method in gas hydration separation process and device, simultaneously, the development of gas utilization new technique is provided technical support, this equipment have highly reliable, cost is low, applied widely, easy to control, it is easy to the advantages such as transformation and upgrade. The present invention is applicable to monitor in real time other variations in temperature.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of device monitoring the change of Characteristics of Temperature Field in gas hydration separation course of reaction;
Gas storage tank 1, open gas stop valve 2, air compressor 3, gas boosting pump 4, gas drying cylinder 5, air inlet stop valve 6, pressure transducer 7, high-low temperature controller 8, array temperature sensor 9, data acquisition unit 10, industrial computer 11, visual reactor 12, visual windows 13, air inlet 14.
Detailed description of the invention
Detailed description of the invention one, illustrate present embodiment with reference to Fig. 1, a kind of described in present embodiment monitors the device of Characteristics of Temperature Field change in gas hydration separation process, it includes gas storage tank 1, opens gas stop valve 2, air compressor 3, gas boosting pump 4, gas drying cylinder 5, air inlet stop valve 6, pressure transducer 7, high-low temperature controller 8, array temperature sensor 9, data acquisition unit 10, industrial computer 11 and visual reactor 12;
Gas storage tank 1 is used for storing gas; Air compressor 3 and gas booster pump 4 are for being pressed in visual reactor 12 by the gas in gas storage tank 1;
Visual reactor 12 is used for placing solution, and reacts offer place for gas and solution; The top of visual reactor 12 is provided with air inlet 14;
Open gas stop valve 2 and be arranged between gas storage tank 1 and gas drying cylinder 5, for controlling opening and disconnecting of gas circuit;
Gas drying cylinder 5 is for drying the gas of gas storage tank 1 output;
Air inlet stop valve 6 is arranged between gas drying cylinder 5 and pressure transducer 7, for controlling the air inlet in visual reactor 12;
Pressure transducer 7 is arranged on air inlet 14 place of visual reactor 12, for monitoring the pressure in visual reactor 12 in real time, and sends the pressure of monitoring to data acquisition unit 10;
Visual reactor 12 is arranged in high-low temperature controller 8, and high-low temperature controller 8 is for providing reaction temperature for visual reactor 12;
Array temperature sensor 9 is in bending distribution, and divides n layer to be distributed in below the liquid level of solution in visual reactor 12 from bottom to up, for monitoring the temperature in visual reactor 12 in real time; The temperature of monitoring is sent to data acquisition unit 10 by array temperature sensor 9; N is the positive integer be more than or equal to 3;
Data acquisition unit 10 sends to industrial computer 11 for the temperature that will receive;
Industrial computer 11, for array temperature sensor 9 and pressure transducer 7 are calibrated and are returned to zero, receives the temperature and pressure that data acquisition unit 10 sends simultaneously.
In present embodiment, high-low temperature controller 8 is the offer reaction temperature of visual reactor 12; Placing solution in visual reactor 12, open gas stop valve 2 and air inlet stop valve 6, gas storage tank 1, by the effect of air compressor 3 and gas booster pump 4, makes gas pass through gas drying cylinder 5 and is pressed in visual reactor 12 after drying; Gas and solution are fully contacted and react, make gas hydration separation, pressure transducer 7 monitors the pressure in visual reactor 12 in real time, and send a pressure to data acquisition unit 10, sending to industrial computer 11 through data acquisition unit 10, the temperature in visual reactor 12 is monitored in array temperature sensor 9 in real time, and sends a temperature to data acquisition unit 10, send to industrial computer 11 through data acquisition unit 10, thus realizing Characteristics of Temperature Field change monitoring in real time in gas hydration reaction process. After completion of the reaction, make and break gas stop valve 2 and air inlet stop valve 6 are closed. This device meets the demand to the device for detecting temperature in gas hydration separation process.
Array temperature sensor 9 in visual reactor 12 in hydration separation process all below liquid level, thus monitoring variations in temperature in real time, admission line main line gas storage tank 1, open gas stop valve 2, air compressor 3, gas boosting pump 4, gas drying cylinder 5 and air inlet stop valve and be connected with the air vent 14 of visual reactor 12 top end cover, pressure transducer 7 is connected with air inlet main line, and pressure transducer 7 is connected with industrial computer 11 by data acquisition unit 10 with array temperature sensor 9.
The design principle of this device is: entered by air vent in visual reactor the gas in gas storage tank utilizes air compressor drive gas boosting pump to be passed to air inlet main line, being fully contacted with the middle solution in visual reactor, high-low temperature controller can provide hydration reaction ambient temperature.
Detailed description of the invention two, this detailed description of the invention are that a kind of described in detailed description of the invention one monitors further illustrating of the device of Characteristics of Temperature Field change in gas hydration reaction process, in present embodiment, the top of visual reactor 12 is provided with visual windows 13.
In present embodiment, staff observes the response situation in visual reactor 12 by visual windows 13.
Detailed description of the invention three, this detailed description of the invention are that a kind of described in detailed description of the invention two monitors further illustrating of the device of Characteristics of Temperature Field change in gas hydration separation process, in present embodiment, solution is made up of kinetics accelerator and thermodynamics accelerator.
In present embodiment, data display kinetics accelerator can shorten gas hydrate synthesis induction period, improving gas hydration separation speed, thermodynamics accelerator can improve gas hydration separation temperature, pressure condition, and gas hydration separation process can be made to carry out gentleer when.
Detailed description of the invention four, this detailed description of the invention are that a kind of described in detailed description of the invention three monitors further illustrating of the device of Characteristics of Temperature Field change in gas hydration separation process, in present embodiment, array temperature sensor 9 is in 3 �� 5 array arrangements, namely array temperature sensor is divided into upper, middle and lower-ranking, every layer is 5 temperature sensors, and the probe of array temperature sensor 9 is in bending distribution.
In present embodiment, the temperature sensor of which arrangement, monitoring effect is best.
A kind of method monitoring gas hydration separation process temperature field changing features described in detailed description of the invention five, detailed description of the invention, the method is based on what a kind of device monitoring gas hydration separation process temperature field changing features realized; Specifically comprising the following steps that of the method
Step one, check and the air-tightness of a kind of device monitoring gas hydration separation process temperature field changing features after air-leakage test is qualified, carry out next step;
Step 2, the solution good by concentration proportioning is injected in visual reactor 12, and submergence array temperature sensor 9, close the lid of visual reactor 12;
Array temperature sensor 9 and pressure transducer 7 are calibrated and return to zero by step 3, industrial computer 11, simultaneously by arranging the temperature of high-low temperature controller 8, provide reaction temperature for visual reactor 12;
Step 4, opening gas stop valve 2 and air inlet stop valve 6, the gas in gas storage tank 1, by the effect of air compressor 3 and gas booster pump 4, makes gas pass through gas drying cylinder 5 and is pressed in visual reactor 12 by air vent 14 after drying;
The temperature of monitoring is sent to industrial computer 11 by step 5, array temperature sensor 9 by data acquisition unit 10; The pressure of monitoring is sent to industrial computer 11 by pressure transducer 7 by data acquisition unit 10; Industrial computer 11 records, stores, displays temperature and pressure;
Step 6, when industrial computer 11 shows that pressure no longer changes, close make and break gas stop valve 2 and air inlet stop valve 6.
In present embodiment, pass through said method, it is achieved that to monitoring gas hydration separation process temperature field changing features in real time.
Claims (5)
1. the device monitoring gas hydration separation process temperature field changing features, it is characterized in that, it includes gas storage tank (1), opens gas stop valve (2), air compressor (3), gas boosting pump (4), gas drying cylinder (5), air inlet stop valve (6), pressure transducer (7), high-low temperature controller (8), array temperature sensor (9), data acquisition unit (10), industrial computer (11) and visual reactor (12);
Gas storage tank (1) is used for storing gas; Air compressor (3) and gas booster pump (4) are for being pressed in visual reactor (12) by the gas in gas storage tank (1);
Visual reactor (12) is used for placing liquid, and reacts offer place for gas and solution; The top of visual reactor (12) is provided with air inlet (14);
Open gas stop valve (2) and be arranged between gas storage tank (1) and gas drying cylinder (5), for controlling opening and disconnecting of gas circuit;
Gas drying cylinder (5) is used for drying the gas that gas storage tank (1) exports;
Air inlet stop valve (6) is arranged between gas drying cylinder (5) and pressure transducer (7), is used for controlling the air inlet in visual reactor (12);
Pressure transducer (7) is arranged on air inlet (14) place of visual reactor (12), for monitoring the pressure in visual reactor (12) in real time, and the pressure of monitoring is sent to data acquisition unit (10);
Visual reactor (12) is arranged in high-low temperature controller (8), and high-low temperature controller (8) is for providing reaction temperature for visual reactor (12);
Array temperature sensor (9) is in bending distribution, and divides n layer to be distributed in below the liquid level of solution in visual reactor (12) from bottom to up, for monitoring visual reactor (12) interior different layers position variations in temperature in real time; The temperature of monitoring is sent to data acquisition unit (10) by array temperature sensor (9); N is the positive integer be more than or equal to 3;
Data acquisition unit (10) sends to industrial computer (11) for the temperature and pressure that will receive;
Industrial computer (11), for array temperature sensor (9) and pressure transducer (7) are calibrated and are returned to zero, receives the temperature and pressure that data acquisition unit (10) sends simultaneously.
2. a kind of device monitoring gas hydration separation process temperature field changing features according to claim 1, it is characterised in that the top of visual reactor (12) is provided with visual windows (13).
3. a kind of device monitoring gas hydration separation process temperature field changing features according to claim 2, it is characterised in that the variations in temperature of liquid internal different layers position in array temperature sensor (9) monitoring reaction course.
4. a kind of device monitoring gas hydration separation process temperature field changing features according to claim 3, it is characterized in that, array temperature sensor (9) arranges in 3 �� 5 arrays, namely array temperature sensor is divided into upper, middle and lower-ranking, every layer is 5 temperature sensors, and the probe of array temperature sensor (9) is in bending distribution.
5. a kind of method monitoring gas hydration separation process temperature field changing features, it is characterised in that the method is based on what device monitoring gas hydration separation process temperature field changing features realized; Specifically comprising the following steps that of the method
Step one, check and the air-tightness of a kind of device monitoring gas hydration separation process temperature field changing features after air-leakage test is qualified, carry out next step;
Step 2, the solution good by concentration proportioning or pure water are injected in visual reactor (12), and submergence array temperature sensor (9), close the lid of visual reactor (12);
Array temperature sensor (9) and pressure transducer (7) are calibrated and return to zero by step 3, industrial computer (11), simultaneously by arranging the temperature of high-low temperature controller (8), provide reaction temperature for visual reactor (12);
Step 4, open gas stop valve (2) and air inlet stop valve (6), gas in gas storage tank (1), by the effect of air compressor (3) and gas booster pump (4), makes gas pass through gas drying cylinder (5) and is pressed in visual reactor (12) by air vent (14) after drying;
The temperature of monitoring is sent to industrial computer (11) by step 5, array temperature sensor (9) by data acquisition unit (10); The pressure of monitoring is sent to industrial computer (11) by pressure transducer (7) by data acquisition unit (10); Industrial computer (11) record, storage, displays temperature and pressure;
Step 6, when industrial computer (11) upper display pressure reaches goal pressure, close make and break gas stop valve (2) and air inlet stop valve (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610028097.6A CN105628733A (en) | 2016-01-16 | 2016-01-16 | Device and method for monitoring change in temperature field characteristics in gas hydration separation reaction process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610028097.6A CN105628733A (en) | 2016-01-16 | 2016-01-16 | Device and method for monitoring change in temperature field characteristics in gas hydration separation reaction process |
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| CN105628733A true CN105628733A (en) | 2016-06-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107607153A (en) * | 2017-08-29 | 2018-01-19 | 广州海洋地质调查局 | A kind of Gas Hydrate In Sea Areas pilot production point monitoring system and method |
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| CN202614703U (en) * | 2012-01-12 | 2012-12-19 | 天津工业大学 | Quick determination device of convective heat transfer coefficient of surface of thermo-technical test piece |
| CN102590271A (en) * | 2012-02-07 | 2012-07-18 | 上海理工大学 | Ground source heat pump rock-soil heat response dynamic testing system and testing method |
| CN103439357A (en) * | 2013-08-20 | 2013-12-11 | 上海市建筑科学研究院 | Method for testing moisture-heat transfer performance of exterior wall and dedicated climate simulation test chamber therefor |
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Application publication date: 20160601 |