CN105572298A - Testing system for performance of active carbon in inert gas delay bed of gaseous radioactive waste processing unit - Google Patents
Testing system for performance of active carbon in inert gas delay bed of gaseous radioactive waste processing unit Download PDFInfo
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- CN105572298A CN105572298A CN201410538455.9A CN201410538455A CN105572298A CN 105572298 A CN105572298 A CN 105572298A CN 201410538455 A CN201410538455 A CN 201410538455A CN 105572298 A CN105572298 A CN 105572298A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention relates to the field of gaseous radioactive waste processing technology, specifically to a testing system for the performance of active carbon in an inert gas delay bed of a unit. The testing system comprises a nitrogen supplying device and a compressed air supplying device; the nitrogen supplying device and the compressed air supplying device are separately connected with a protection bed used for adsorbing organic substances in gas via a humidifying or heating device; the protection bed and a radioactive inert gas source are respectively connected with a mixed measuring tank; the mixed measuring tank is connected with an active carbon testing bed; a plurality of pressure and temperature sensors are arranged on the active carbon testing bed; the outlet of the active carbon testing bed is connected with a radioactivity measuring apparatus via a filter membrane; a branch gas passage is arranged between the inlet of the active carbon testing bed and the mixed measuring tank and connected with a chimney; and a pressure sensor and a humiture sensor are arranged on the mixed measuring tank. The active carbon testing bed and the radioactive source mixed measuring tank are placed in a constant-temperature cabinet, and a purifying and dedusting system is cooperatively used.
Description
Technical field
The present invention relates to radioactive emission treatment technology, be specifically related to a kind of radioactive emission processing unit inert gas and be detained bed Properties of Activated Carbon pilot system.
Background technology
Multiple fission gas is discharged from reactor core, comprising radioactivity inertia process gas krypton and xenon in reactor operation process.In early days adopt compressed tanks storage disintegration method that its radioactivity is dropped to can emission level, but decay tank volume is large, higher to the requirement of gas compressor, and a large amount of hydrogen is long time stored also dangerous in addition.In recent years, the method gradually by safer, economic, feasible activated charcoal be detained bed absorption disintegration method replace.China's Qinshan three phase, gulf, field nuclear power station and the three generations's heap-type nuclear power station built at present all adopt activated charcoal to be detained bed disintegration techniques.This technology relevant treatment technique, equipment and materials all quote foreign technology at present, in the critical period of nuclear power technology fast development, carrying out independent development, realizing production domesticization in the urgent need to being detained bed disintegration techniques to activated charcoal.
The key that activated charcoal is detained bed disintegration techniques is detained the performance that in bed, institute's uses activated charcoal is detained inert gas by activated charcoal, therefore, needs to design one delay bed Properties of Activated Carbon inspection process and also sets up corresponding pilot system.
Summary of the invention
A kind of radioactive emission processing unit inert gas is the object of the present invention is to provide to be detained bed Properties of Activated Carbon pilot system, for the detection of activated charcoal to inert gas retention performance.
Technical scheme of the present invention is as follows: a kind of radioactive emission processing unit inert gas is detained bed Properties of Activated Carbon pilot system, comprise nitrogen gas supply equipment, pressurized air supply arrangement, described nitrogen gas supply equipment is connected with the protection bed for organic substance in adsorbed gas through humidification or firing equipment respectively with pressurized air supply arrangement, described protection bed and radioactivity inert gas source are connected with hybrid measurement pond respectively, described hybrid measurement pond connects activated-carbon test bed, activated-carbon test bed is provided with some pressure, temperature sensor, the outlet of activated-carbon test bed is connected with activity metering unit through filter membrane, activated-carbon test bed entrance be provided with gas circuit branch between hybrid measurement pond and be connected with chimney, described hybrid measurement pond is provided with pressure transducer and Temperature Humidity Sensor.Activated-carbon test bed and radioactive source hybrid measurement pond are placed in constant temperature cabinet simultaneously, and auxiliary in purification dust removal system.
Further; radioactive emission processing unit inert gas as above is detained bed Properties of Activated Carbon pilot system; wherein; described nitrogen gas supply equipment comprises two-way nitrogen circuit, humidifier, gas-liquid separator, mixer; wherein a road nitrogen circuit is connected with humidifier; humidifier connects mixer through gas-liquid separator, and another road nitrogen circuit heater via is directly connected with mixer, and the outlet of mixer is connected with the entrance of described protection bed.
Further; radioactive emission processing unit inert gas as above is detained bed Properties of Activated Carbon pilot system; wherein, described pressurized air supply arrangement comprises blower fan, oil removal plant, effective filter, surge tank, and the outlet of surge tank is connected with the entrance of described protection bed.
Further, radioactive emission processing unit inert gas as above is detained bed Properties of Activated Carbon pilot system, wherein, is provided with gas bypassing between the import and export of described protection bed.
Further, radioactive emission processing unit inert gas as above is detained bed Properties of Activated Carbon pilot system, wherein, also comprises dust separation device, the air intake opening of described dust separation device is arranged on above activated-carbon test bed, and the gas of extraction is sent to chimney after purification.
Further, radioactive emission processing unit inert gas as above is detained bed Properties of Activated Carbon pilot system, wherein, also comprises integration of equipments constant temperature cabinet and constant-temperature heating system, is convenient to test operation and system constant temperature.
Beneficial effect of the present invention is as follows: the invention provides a kind of bed that is detained and use activated charcoal to inert gas
85kr and
133xe retention performance carries out the method and system tested, can according to test relative humiture and pressure requirements, inlet relative humidity, temperature and pressure are regulated, and the activated charcoal carried out under different parameters condition is detained inert gas performance test, different source of the gas can be selected to test simultaneously.Homogeneous phase mixing can be carried out to nitrogen and radgas in hybrid measurement pond in process of the test, purifying and dedusting equipment both can when activated charcoal loads and unloads purifying and dedusting, the Release and dispersion of radioactivity inert gas can be prevented again.Integration of equipments constant temperature cabinet is auxiliary in heating system, is convenient to parameter manipulation and controls and system constant temperature.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing and implementation process, the present invention is described in detail.
The invention provides a kind of radioactive emission processing unit inert gas and be detained bed Properties of Activated Carbon pilot system, inspection is detained bed to inert gas
85kr and
133the retention performance of Xe.The composition of system comprises the conditional parameter such as humiture, pressure stable loop, radioactivity inert gas performance test loop, activated charcoal reuse purge circuit.
The structure composition of system as shown in Figure 1, comprise nitrogen gas supply equipment, pressurized air supply arrangement, protection bed, activated-carbon test bed etc., described nitrogen gas supply equipment and pressurized air supply arrangement are connected with the protection bed 21 for organic substance in adsorbed gas respectively, described protection bed 21 and radioactivity inert gas source 36 are connected with hybrid measurement pond 43 respectively, described hybrid measurement pond 43 connects activated-carbon test bed 48, activated-carbon test bed 48 is provided with some pressure, temperature sensor 29, 30, 31, the outlet of activated-carbon test bed 48 is connected with activity metering unit 39 through filter membrane 38, activated-carbon test bed 48 entrance be provided with gas circuit branch between hybrid measurement pond 43 and be connected with chimney, described hybrid measurement pond 43 is provided with pressure transducer 25 and Temperature Humidity Sensor 26.
Nitrogen gas supply equipment comprise two-way nitrogen circuit 6,7, humidifier 16, gas-liquid separator 17, mixer 12, wherein a road nitrogen circuit 7 is connected with humidifier 16 through reduction valve 13, flow control valve 14, flowmeter 15, humidifier 16 connects mixer 12 through gas-liquid separator 17, gas-liquid separator 17 is provided with draining valve 42, and the pipeline that gas-liquid separator 17 is connected with mixer 12 is provided with stop valve 18; Another road nitrogen circuit 6 is connected with mixer 12 through reduction valve 8, flow control valve 9, flowmeter 10, stop valve 18, well heater 11, and the outlet of mixer 12 is connected with the entrance of described protection bed 21, and connecting line is provided with ball valve 20.
Pressurized air supply arrangement comprises blower fan 1, oil removal plant 2, effective filter 3, surge tank 4, and the outlet of surge tank 4 is connected with the entrance of described protection bed 21, and connecting line is provided with reduction valve 5 and ball valve 19.
Be provided with stop valve 22 between protection bed 21 and hybrid measurement pond 43, between the import and export of protection bed 21, be provided with gas bypassing, gas bypassing is provided with ball valve 23, stop valve 24.Pipeline between radioactivity inert gas source 36 and hybrid measurement pond 43 is provided with reduction valve 35 and stop valve 41.Ball valve 27 is provided with between hybrid measurement pond 43 and activated-carbon test bed 48.Hybrid measurement pond 43 is also directly connected with chimney by gas circuit branch, and this gas circuit branch is provided with ball valve 28.
The pipeline that activated-carbon test bed 48 is connected with activity metering unit 39 is provided with stop valve 32, flowmeter 33, needle valve 37, and is provided with the branch road that leads to standby bed, and branch road is provided with needle valve 34.
In addition, system is also provided with dust separation device 40, and the air intake opening of described dust separation device 40 is arranged on above activated-carbon test bed 48, and the gas of extraction is sent to chimney after purification.System is also provided with pressure display instrument table 44,45, humidity display instrument 46, temperature display meter 47.Operation system setting in integrated constant temperature cabinet 49,50, and is provided with instrument display panel.
Major equipment and the function thereof of native system are as follows:
Protection bed 21 and test bed 48: organic substance and reduction relative humidity in protection bed primary attachment gas, filling adsorbent in bed is activated charcoal or silica-gel desiccant, can change adsorbent according to demand; The interchangeable charcoal of test bed, bed body two ends air inlet/outlet and test loop adopt and connect mode soon, according to the bed body of the replaceable use different size of testing requirements.
Humidifier 16: according to the requirement of test relative humidity, inlet relative humidity is regulated.
Gas-liquid separator 17: when carrying out the higher test of relative humidity, cushion the gas of coming from humidifier, gas-liquid is separated.
Mixer 12: when carrying out the test of different relative humidities, drying nitrogen can be mixed with wet nitrogen, regulate air-flow relative humidity further.
Hybrid measurement pond 43: pressure and humiture parameter measurement position, process of the test can to nitrogen and the further Homogeneous phase mixing of radioactivity inert gas simultaneously.
Purifying and dedusting equipment 40: air intake opening connects integrated cabinet top, when carrying out activated charcoal handling, has purifying and dedusting function; If radioactivity inert gas occurs in process of the test to leak simultaneously, can prevent radioactivity inert gas from spreading.
Well heater 11: air inlet is heated or equipment constant temperature, set temperature control module.
Activity metering unit 39: sample tap is connected with test loop, sampling air-flow is through filter membrane, and system carries out measurement of concetration to radioactivity Kr core Xe
Process of the test radioactivity injection method for inert gas can select pulsed injection method and continuous injection method, and radioactive concentration is 10-10
5bq/L.
Carry out inert gas Kr and Xe to a certain model activated charcoal and carry out retention performance test, protection bed and test bed length-diameter ratio are greater than 3:1, and radgas concentration is 10-10
5bq/L, process of the test is as follows:
Simultaneously service test two nitrogen circuit 6,7 or be used alone a nitrogen circuit, valve-off 19,27, nitrogen, through overprotection bed 21 or gas bypassing (through ball valve 23, stop valve 24), goes to chimney after eventually passing valve 28 loop.After Parameter Conditions is stable, opens valve 27, valve-off 28, switch to test bed 48 loop, and inject radioactivity inert gas, carry out retardation assay.Correlation parameter is shown in control panel Displaying Meter by sensor.
Be that carrier band air-flow is tested the impact of activated charcoal retention performance or reuses activated charcoal in test bed if need carry out with air; air-flow through valve 20, protection bed 21, valve 22, then enters the gas circuit branch (being provided with valve 28) or test bed 48 that connect chimney.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technology thereof, then the present invention is also intended to comprise these change and modification.
Claims (6)
1. a radioactive emission processing unit inert gas is detained bed Properties of Activated Carbon pilot system, it is characterized in that: comprise nitrogen gas supply equipment, pressurized air supply arrangement, described nitrogen gas supply equipment and pressurized air supply arrangement are connected with the protection bed (21) for organic substance in adsorbed gas respectively, described protection bed (21) and radioactivity inert gas source (36) are connected with hybrid measurement pond (43) respectively, described hybrid measurement pond (43) connects activated-carbon test bed (48), activated-carbon test bed (48) is provided with some pressure, temperature sensor (29, 30, 31), the outlet of activated-carbon test bed (48) is connected with activity metering unit (39) through filter membrane (38), activated-carbon test bed (48) entrance be provided with gas circuit branch between hybrid measurement pond (43) and be connected with chimney, described hybrid measurement pond (43) is provided with pressure transducer (25) and Temperature Humidity Sensor (26).
2. radioactive emission processing unit inert gas as claimed in claim 1 is detained bed Properties of Activated Carbon pilot system, it is characterized in that: described nitrogen gas supply equipment comprises two-way nitrogen circuit (6, 7), humidifier (16), gas-liquid separator (17), mixer (12), wherein a road nitrogen circuit (7) is connected with humidifier (16), humidifier (16) connects mixer (12) through gas-liquid separator (17), another road nitrogen circuit (6) heater via (11) is directly connected with mixer (12), the outlet of mixer (12) is connected with the entrance of described protection bed (21).
3. radioactive emission processing unit inert gas as claimed in claim 1 is detained bed Properties of Activated Carbon pilot system; it is characterized in that: described pressurized air supply arrangement comprises blower fan (1), oil removal plant (2), effective filter (3), surge tank (4), the outlet of surge tank (4) is connected with the entrance of described protection bed (21).
4., as the radioactive emission processing unit inert gas in claim 1-3 as described in any one is detained bed Properties of Activated Carbon pilot system, it is characterized in that: between the import and export of described protection bed 21, be provided with gas bypassing.
5. as the radioactive emission processing unit inert gas in claim 1-3 as described in any one is detained bed Properties of Activated Carbon pilot system, it is characterized in that: also comprise dust separation device (40), the air intake opening of described dust separation device (40) is arranged on activated-carbon test bed (48) top, and the gas of extraction is sent to chimney after purification.
6. as the radioactive emission processing unit inert gas in claim 1-3 as described in any one is detained bed Properties of Activated Carbon pilot system, it is characterized in that: comprise integration of equipments constant temperature cabinet (49,50) and constant-temperature heating system, be convenient to test operation and system constant temperature.
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| CN201410538455.9A CN105572298B (en) | 2014-10-13 | 2014-10-13 | Radioactive emission processing unit inert gas is detained bed Properties of Activated Carbon pilot system |
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| CN201410538455.9A CN105572298B (en) | 2014-10-13 | 2014-10-13 | Radioactive emission processing unit inert gas is detained bed Properties of Activated Carbon pilot system |
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| CN105572298B CN105572298B (en) | 2019-07-02 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110096082A (en) * | 2018-01-31 | 2019-08-06 | 中国辐射防护研究院 | A kind of iodine environment simulator |
| CN110096083A (en) * | 2018-01-31 | 2019-08-06 | 中国辐射防护研究院 | A kind of temperature and humidity accurate control device |
| CN110097991A (en) * | 2018-01-31 | 2019-08-06 | 中国辐射防护研究院 | Removable radioactive gas recovery system is used under a kind of emergency conditions |
| CN110444309A (en) * | 2018-01-29 | 2019-11-12 | 中国辐射防护研究院 | A kind of nuclear facilities radioactivity technology waste gas processing system |
| CN111239334A (en) * | 2020-01-08 | 2020-06-05 | 中国辐射防护研究院 | Pulse type generation system and method for radioactive inert gas tracer |
| CN112755987A (en) * | 2020-12-29 | 2021-05-07 | 江苏核电有限公司 | Device for on-line vacuum drying and regeneration of activated carbon of nuclear power unit detention bed |
| CN113310865A (en) * | 2021-04-28 | 2021-08-27 | 岭东核电有限公司 | Nuclear power station active carbon performance detection system and method |
| CN113324777A (en) * | 2021-04-26 | 2021-08-31 | 中国辐射防护研究院 | Polymorphic radioactive iodine environment simulation and equipment comprehensive evaluation equipment |
| CN114797815A (en) * | 2022-03-28 | 2022-07-29 | 中国辐射防护研究院 | Movable regeneration device of drying bed |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444309A (en) * | 2018-01-29 | 2019-11-12 | 中国辐射防护研究院 | A kind of nuclear facilities radioactivity technology waste gas processing system |
| CN110096082A (en) * | 2018-01-31 | 2019-08-06 | 中国辐射防护研究院 | A kind of iodine environment simulator |
| CN110096083A (en) * | 2018-01-31 | 2019-08-06 | 中国辐射防护研究院 | A kind of temperature and humidity accurate control device |
| CN110097991A (en) * | 2018-01-31 | 2019-08-06 | 中国辐射防护研究院 | Removable radioactive gas recovery system is used under a kind of emergency conditions |
| CN110096082B (en) * | 2018-01-31 | 2022-03-04 | 中国辐射防护研究院 | Iodine environment simulator |
| CN110097991B (en) * | 2018-01-31 | 2023-07-14 | 中国辐射防护研究院 | Movable radioactive gas treatment system used under accident condition |
| CN111239334A (en) * | 2020-01-08 | 2020-06-05 | 中国辐射防护研究院 | Pulse type generation system and method for radioactive inert gas tracer |
| CN112755987A (en) * | 2020-12-29 | 2021-05-07 | 江苏核电有限公司 | Device for on-line vacuum drying and regeneration of activated carbon of nuclear power unit detention bed |
| CN113324777A (en) * | 2021-04-26 | 2021-08-31 | 中国辐射防护研究院 | Polymorphic radioactive iodine environment simulation and equipment comprehensive evaluation equipment |
| CN113324777B (en) * | 2021-04-26 | 2024-01-23 | 中国辐射防护研究院 | Polymorphic radioactive iodine environment simulation and equipment comprehensive evaluation equipment |
| CN113310865A (en) * | 2021-04-28 | 2021-08-27 | 岭东核电有限公司 | Nuclear power station active carbon performance detection system and method |
| CN114797815A (en) * | 2022-03-28 | 2022-07-29 | 中国辐射防护研究院 | Movable regeneration device of drying bed |
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