CN103219059B - Radioactive spent resin metering system - Google Patents
Radioactive spent resin metering system Download PDFInfo
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- CN103219059B CN103219059B CN201310123148.XA CN201310123148A CN103219059B CN 103219059 B CN103219059 B CN 103219059B CN 201310123148 A CN201310123148 A CN 201310123148A CN 103219059 B CN103219059 B CN 103219059B
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- spent resin
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- water
- radioactive
- metering system
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- 239000011347 resin Substances 0.000 title claims abstract description 142
- 229920005989 resin Polymers 0.000 title claims abstract description 142
- 230000002285 radioactive effect Effects 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 230000018044 dehydration Effects 0.000 claims abstract description 27
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 19
- 238000000892 gravimetry Methods 0.000 claims description 12
- 230000005484 gravity Effects 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000003116 impacting effect Effects 0.000 claims description 2
- 230000003020 moisturizing effect Effects 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 5
- 238000009472 formulation Methods 0.000 abstract description 3
- 239000002354 radioactive wastewater Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 239000004568 cement Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002671 adjuvant Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The invention discloses a kind of radioactive spent resin metering system, it comprises spent resin hold-up tank, spent resin test tank, dehydration pump, water measuring tank and pail for used dressings, and spent resin test tank is connected with spent resin hold-up tank and receives moisture spent resin from spent resin hold-up tank; Dehydration pump is connected between spent resin test tank and water measuring tank, dewaters to the stock in spent resin test tank, and enters in water measuring tank by the water deviate from; Spent resin test tank and water measuring tank are connected to pail for used dressings respectively, thus the spent resin after dehydration and water are added in pail for used dressings by the predetermined ratio of curing formula.Compared with prior art, radioactive spent resin metering system of the present invention is by being separated spent resin with water, again spent resin, water are carried out to the mode of accurate measurement, solve nuclear power plant or other nuclear facilities radioactive spent resin measuring difficulties, a difficult problem that measuring error is large, achieve the accurate formulation of curing formula, solve the multiplying question of radioactive wastewater simultaneously.
Description
Technical field
The present invention relates to nuclear power Waste disposal field, more particularly, the present invention relates to a kind of radioactive spent resin metering system.
Background technology
Nuclear power plant or other nuclear facilities mainly adopt desalination bed technique to carry out purification of water quality process, owing to mostly containing radioactivity except in the water of salt bed process, therefore, except the resin in salt bed also can containing a large amount of radioactivity after inefficacy.At present, the process of radioactive spent resin normally adopts cement solidification technique, radioactive spent resin is produced into stable solidification of radwaste body, to carry out follow-up temporary, transport, disposal etc.The firming body that cement solidification explained hereafter is gone out meets the requirement of GB GB14569.3, key is the realization that solidification of waste is filled a prescription, the composition of curing formula mainly comprises: radioactive spent resin, water, cement and adjuvant, and how to carry out accurate measurement to the various compositions in curing formula be a difficult problem in present stage radioactive spent resin process always.
Refer to Fig. 1, existing nuclear facilities adopts volume metering method usually, and in an airtight tank body 10, install level gauging liquid level gauge 12 measure spent resin 14 and water 16, liquid level gauge 12 can be the liquid level gauge such as ultrasonic type, radar type.But because resin is solid, its interface 140 in airtight tank body 10 is smooth unlike liquid surface, is often large wave or koppie type, causes the metering of liquid level gauge 12 pairs of spent resins 14 often to produce very big error; In addition, because the saturated density of resin is about 1070kg/m3, suitable with the density of water, therefore liquid level gauge 12 is difficult to identify spent resin 14 and the interphase of water 16, also exacerbates the measurement difficulty of liquid level gauge 12 further.
Metering in view of spent resin 14 is directly connected to the realization of formula, and can impact the solidified cement body performance produced, and therefore necessaryly provides a kind of radioactive spent resin metering system that can realize spent resin accurate measurement.
Summary of the invention
The object of the invention is to: provide a kind of radioactive spent resin metering system that can realize spent resin accurate measurement, to ensure the realization of curing formula.
In order to realize foregoing invention object, the invention provides a kind of radioactive spent resin metering system, it comprises spent resin hold-up tank, spent resin test tank, dehydration pump, water measuring tank and pail for used dressings, and spent resin test tank is connected with spent resin hold-up tank and receives moisture spent resin from spent resin hold-up tank; Dehydration pump is connected between spent resin test tank and water measuring tank, and it dewaters to the stock in spent resin test tank, and enters in water measuring tank by the water deviate from; Spent resin test tank and water measuring tank are connected to pail for used dressings respectively, thus the spent resin after dehydration and water are added in pail for used dressings by the predetermined ratio of curing formula.
One as radioactive spent resin metering system of the present invention is improved, and described spent resin test tank, water measuring tank are all for being provided with the gravitometer measuring tank of gravimetry unit.
One as radioactive spent resin metering system of the present invention is improved, described gravimetry unit is located on each supporting leg of place tank body, on these supporting legs and each pipeline junction of place tank body be all provided with can eliminate vibration with the flexible material preventing external factor from impacting gravity measurement result.
One as radioactive spent resin metering system of the present invention is improved, and described spent resin test tank, water measuring tank are all provided with the liquid level gauge measured liquid level and report to the police.
One as radioactive spent resin metering system of the present invention is improved, and the exit be connected with pail for used dressings bottom described spent resin test tank is provided with carries for realizing spent resin and carries out the accurate helix transporting device controlled to operational throughput.
One as radioactive spent resin metering system of the present invention is improved, and the junction of described spent resin test tank and dehydration pump is provided with the filter screen preventing spent resin from discharging when dewatering.
One as radioactive spent resin metering system of the present invention is improved, and described spent resin hold-up tank is provided with the ventilation duct for balancing air pressure inside.
One as radioactive spent resin metering system of the present invention is improved, and is provided with the sight glass observing cases of dehydration between described dehydration pump and water measuring tank.
One as radioactive spent resin metering system of the present invention is improved, and described dehydration pump is also provided with the draining branch road of deviate from water discharged to up-stream system, and water measuring tank is then provided with the moisturizing branch road supplementing demineralized water from SED system.
One as radioactive spent resin metering system of the present invention is improved, and the connection in described system between each equipment, connection between each equipment and external unit are all that the connecting pipe by being provided with opening and closing valve realizes.
Compared with prior art, radioactive spent resin metering system of the present invention is by being separated spent resin with water, again spent resin, water are carried out to the mode of accurate measurement, solve nuclear power plant or other nuclear facilities radioactive spent resin measuring difficulties, a difficult problem that measuring error is large, achieve the accurate formulation of curing formula, solve the multiplying question of radioactive wastewater simultaneously.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, radioactive spent resin metering system of the present invention and beneficial effect thereof are described in detail.
Fig. 1 is the metering schematic diagram of existing radioactive spent resin.
Fig. 2 is the structural representation of radioactive spent resin metering system of the present invention.
Embodiment
In order to make goal of the invention of the present invention, technical scheme and Advantageous Effects thereof more clear, below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.Should be understood that, the embodiment described in this instructions is only used to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 2, radioactive spent resin metering system of the present invention comprises spent resin hold-up tank 20, spent resin test tank 30, dehydration pump 40, water measuring tank 50, pail for used dressings 60 and the connecting pipe be connected between the said equipment and controls the valve of different connecting pipe opening and closing.
Spent resin hold-up tank 20, for moisture spent resin to be solidified after store failure, is connected to spent resin test tank 30 by connecting pipe 22 bottom it.
The top of spent resin test tank 30 is connected with connecting pipe 22, can receive and store the moisture spent resin from spent resin hold-up tank 20; In order to avoid the air pressure change in spent resin test tank 30 causes damage to it, the top of spent resin test tank 30 is provided with ventilation duct 31.Spent resin test tank 30 itself is gravity test tank, and its tank landing leg (not shown) is provided with gravimetry unit 32, and it is because mean value can make metric results more accurate that multiple supporting leg all arranges gravimetry unit 32; On supporting leg and each pipeline junction of spent resin test tank 30 be all provided with the flexible material can eliminating vibration, impact to prevent the measurement result of external factor to gravity measuring unit 32.In addition, spent resin test tank 30 is provided with the liquid level gauge 34 measured liquid level and report to the police.The bottom of spent resin test tank 30 is connected to pail for used dressings 60 by connecting pipe 35, and outlet at bottom place is then provided with for realizing spent resin conveying and carrying out the accurate helix transporting device 36 controlled to operational throughput, and helix transporting device 36 is driven by motor 360.Spent resin test tank 30 is connected to dehydration pump 40 near bottom place by connecting pipe 38, and connecting pipe 38 is provided with spent resin test tank 30 junction the filter screen (not shown) preventing spent resin from discharging when dewatering.In addition, the top of spent resin test tank 30 is also connected with SED system (nuclear island demineralized water distribution system) by connecting pipe 39, the water facilitating the use SED system cleans spent resin test tank 30, and connecting pipe 39 is provided with the valve 390 controlling opening and closing.
The entrance of dehydration pump 40 is connected with spent resin test tank 30 by connecting pipe 38, outlet is connected with water measuring tank 50 by connecting pipe 42, it can dewater to the spent resin in spent resin test tank 30 after starting, and the water deviate from is entered storage in water measuring tank 50.Connecting pipe 42 is provided with the sight glass 46 observing cases of dehydration, is also provided with the branch road being led to up-stream system by connecting pipe 44, time up to standard with the water in water measuring tank 50, is flow back in up-stream system by the water that dehydration pump 40 is deviate from.
The top of water measuring tank 50 is connected with connecting pipe 42, can receive the water that dehydration pump 40 is deviate from spent resin test tank 30.Water measuring tank 50 is also gravity test tank, and its tank landing leg (not shown) is provided with gravimetry unit 52, and it is because mean value can make metric results more accurate that multiple supporting leg all arranges gravimetry unit 52; On supporting leg and each pipeline junction of water measuring tank 50 be all provided with the flexible material can eliminating vibration, impact to prevent the measurement result of external factor to gravity measuring unit 52.Water measuring tank 50 is also provided with the liquid level gauge 54 measured liquid level and report to the police.The bottom of water measuring tank 50 is connected to pail for used dressings 60 by connecting pipe 56.In order to prevent water shortage, the top of water measuring tank 50 is also connected with the connecting pipe 58 from SED system, to supplement demineralized water from SED system.
Pail for used dressings 60 is 400L metal drum, and its top is connected with connecting pipe 35, connecting pipe 56, quantitatively to receive spent resin and water respectively from spent resin test tank 30, water measuring tank 50.
The use step of radioactive spent resin metering system of the present invention is:
1) system is checked, and each gravimetry unit 32,52 of spent resin test tank 30 and water measuring tank 50 is carried out zero whole;
2) open the valve 220 on connecting pipe 22, the potpourri of the spent resin in spent resin hold-up tank 20 and water is entered in spent resin test tank 30 by gravity or jetting pump; Tentatively measured by the liquid level in liquid level gauge 34 pairs of spent resin test tanks 30, when liquid level reaches setting value, valve-off 220;
3) open the valve 380,420 of connecting pipe 38,42, the stock in spent resin test tank 30 is dewatered, and the water deviate from is entered in water measuring tank 50; During dehydration, water yield m2 needed for formula or V2 is measured: if the hypervolia in spent resin test tank 30 by the gravimetry unit 52 of water measuring tank 50 or liquid level gauge 54, when the water of water measuring tank 50 has reached m2 or V2, valve-off 420, opens the valve 440 on connecting pipe 44 and enters in up-stream system by residue water; If inadequate m2 or V2 of the water yield in spent resin test tank 30, then open the valve 580 of connecting pipe 58, utilize the supplementary of demineralized water to make the water yield in water measuring tank 50 reach m2 or V2, then valve-off 580;
4) observe cases of dehydration by sight glass 46, after the water treating in spent resin test tank 30 is drained, close dehydration pump 40;
5) the weight m1 of saturated spent resin is measured by the gravimetry unit 32 of spent resin test tank 30: if m1 value is greater than the amount of resin needed for curing formula, then carry out next step; If m1 value is less than formula desirable value, then repeat the 2 to 4 step;
6) the required amount of resin △ m of formula is set in the controls, open the valve 350 of connecting pipe 35 and the helix transporting device 36 started in spent resin test tank 30, spent resin is delivered in 400L metal drum, when the measurement displayed value of the gravimetry unit 32 of spent resin test tank 30 is m1-△ m, close helix transporting device 36 and valve 350, thus the metering completing spent resin is added;
7) open the valve 560 of connecting pipe 56, the water measured in water measuring tank 50 is added in 400L metal drum.
Known by describing above, radioactive spent resin metering system of the present invention is by being separated spent resin with water, again spent resin, water are carried out to the mode of accurate measurement, solve nuclear power plant or other nuclear facilities radioactive spent resin measuring difficulties, a difficult problem that measuring error is large, achieve the accurate formulation of curing formula, solve the multiplying question of radioactive wastewater simultaneously.The problem that Resin Flow difference after the use of helix transporting device 36 then efficiently solves dehydration is not easily carried.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (8)
1. a radioactive spent resin metering system, it is characterized in that: comprise spent resin hold-up tank, spent resin test tank, dehydration pump, water measuring tank and pail for used dressings, spent resin test tank is connected with spent resin hold-up tank and receives moisture spent resin from spent resin hold-up tank; Dehydration pump is connected between spent resin test tank and water measuring tank, dewaters to the stock in spent resin test tank, and enters in water measuring tank by the water deviate from; Spent resin test tank and water measuring tank are connected to pail for used dressings respectively, thus are added in pail for used dressings by the spent resin after dehydration and water by the predetermined ratio of curing formula; Described spent resin test tank, water measuring tank are all for being provided with the gravitometer measuring tank of gravimetry unit; Gravimetry unit is located on each supporting leg of place tank body, on the supporting leg of these tank bodies and each pipeline junction of place tank body be all provided with can eliminate vibration with the flexible material preventing external factor from impacting gravity measurement result.
2. radioactive spent resin metering system according to claim 1, is characterized in that: described spent resin test tank, water measuring tank are all provided with the liquid level gauge measured liquid level and report to the police.
3. radioactive spent resin metering system according to claim 1, is characterized in that: the exit be connected with pail for used dressings bottom described spent resin test tank is provided with carries for realizing spent resin and carries out the accurate helix transporting device controlled to operational throughput.
4. radioactive spent resin metering system according to claim 1, is characterized in that: the junction of described spent resin test tank and dehydration pump is provided with the filter screen preventing spent resin from discharging when dewatering.
5. radioactive spent resin metering system according to claim 1, is characterized in that: described spent resin hold-up tank is provided with the ventilation duct for balancing air pressure inside.
6. radioactive spent resin metering system according to claim 1, is characterized in that: be provided with the sight glass observing cases of dehydration between described dehydration pump and water measuring tank.
7. radioactive spent resin metering system according to claim 1, is characterized in that: described dehydration pump is also provided with the draining branch road of deviate from water discharged to up-stream system, and water measuring tank is then provided with the moisturizing branch road supplementing demineralized water from SED system.
8. radioactive spent resin metering system according to any one of claim 1 to 7, is characterized in that: the connection in described system between each equipment, connection between each equipment and external unit are all that the connecting pipe by being provided with opening and closing valve realizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310123148.XA CN103219059B (en) | 2013-04-10 | 2013-04-10 | Radioactive spent resin metering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310123148.XA CN103219059B (en) | 2013-04-10 | 2013-04-10 | Radioactive spent resin metering system |
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| Publication Number | Publication Date |
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| CN103219059A CN103219059A (en) | 2013-07-24 |
| CN103219059B true CN103219059B (en) | 2016-04-20 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064239B (en) * | 2014-07-14 | 2018-05-29 | 中广核工程有限公司 | A kind of low middle Intermediate Level Radioactive activated carbon processing method of nuclear power station |
| CN105070340B (en) * | 2015-07-17 | 2017-08-04 | 中广核工程有限公司 | A kind of nuclear power plant's solidification of waste processing system and method |
| CN106373628B (en) * | 2016-10-11 | 2018-05-29 | 中广核工程有限公司 | The processing system and method for radioactivity resin |
| CN106384614A (en) * | 2016-10-17 | 2017-02-08 | 上海核工程研究设计院 | Vacuum drying method for radioactive waste resin |
| CN107719888A (en) * | 2017-09-29 | 2018-02-23 | 中国核动力研究设计院 | A kind of radioactive liquid waste transporter |
| CN108458769A (en) * | 2017-12-27 | 2018-08-28 | 中核四0四有限公司 | Stirred tank liquid level gauge, densitometer and pneumatic tubing clip valve automatic interlock control system |
| CN109849238B (en) * | 2019-03-28 | 2024-05-10 | 江苏核电有限公司 | Radioactive waste resin grinding system with redundant device |
| CN110411543B (en) * | 2019-07-09 | 2020-12-04 | 江苏中海华核环保有限公司 | Metering equipment for temporarily storing radioactive waste resin and capable of adjusting proportion of water to resin |
| CN112133466B (en) * | 2020-09-23 | 2022-02-11 | 中国核动力研究设计院 | Radioactive waste resin recovery device and method |
| CN112133465B (en) * | 2020-09-23 | 2022-02-11 | 中国核动力研究设计院 | Radioactive waste resin recovery system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6159299A (en) * | 1984-08-31 | 1986-03-26 | 株式会社日立製作所 | Method and device for treating radioactive waste |
| CN101456715B (en) * | 2008-12-25 | 2012-07-18 | 清华大学 | Boron-containing radioactive spent resin cement solidification method |
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