CN114279531A - Radioactive waste resin interface measuring device based on magnetostrictive liquid level meter - Google Patents
Radioactive waste resin interface measuring device based on magnetostrictive liquid level meter Download PDFInfo
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- CN114279531A CN114279531A CN202111628712.4A CN202111628712A CN114279531A CN 114279531 A CN114279531 A CN 114279531A CN 202111628712 A CN202111628712 A CN 202111628712A CN 114279531 A CN114279531 A CN 114279531A
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- floater
- magnetostrictive
- liquid level
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- 239000011347 resin Substances 0.000 title claims abstract description 103
- 229920005989 resin Polymers 0.000 title claims abstract description 103
- 239000007788 liquid Substances 0.000 title claims abstract description 40
- 239000002901 radioactive waste Substances 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 210000000078 claw Anatomy 0.000 claims abstract description 35
- 238000004891 communication Methods 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 23
- 230000005855 radiation Effects 0.000 claims description 7
- 230000002285 radioactive effect Effects 0.000 claims 9
- 238000007667 floating Methods 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 10
- 239000000523 sample Substances 0.000 description 8
- 230000008859 change Effects 0.000 description 7
- 239000002699 waste material Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000001028 reflection method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005008 domestic process Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a radioactive waste resin interface measuring device based on a magnetostrictive liquid level meter, which comprises the magnetostrictive liquid level meter, wherein the magnetostrictive liquid level meter comprises a water level floater and a resin floater; the measuring device also comprises a traction device, a cable and a lifting claw; the cable is connected with the traction device, and the lifting claw is fixed on the cable; the lifting claw is positioned below the resin floater, and when the traction device drives the lifting claw to ascend through a cable, the resin floater is lifted by the lifting claw; the measuring device further comprises a box body and a control box, the gauge head and the traction device are arranged in the box body, and the gauge head and the traction device are connected with the control box in a data communication mode. The invention measures the resin interface with irradiation by combining the magnetostrictive liquid level meter measuring principle, the special floating ball design and the special lifting device, and can simultaneously measure the liquid level and the height of the resin/water interface.
Description
Technical Field
The invention relates to the field of indication or measurement of liquid level or flowing solid material level, in particular to a radioactive waste resin interface measuring device based on a magnetostrictive liquid level meter.
Background
By 9, 30 months and 9 days in 2020, 49 nuclear power units are operated in China, and the installed capacity is 51027.16MWe (rated installed capacity). Each 1000MW nuclear power generating unit generates about 5-10 m per year3The waste resin of (2) is one of the main radioactive wastes of nuclear power plants. In China, most of the waste resins are cured by cement at present, and because the capacity increasing ratio is large and the final waste amount is large, the waste resins do not accord with the waste minimization principle, and the subsequent management is greatly burdened. For curing, the resin amount in the metering tank should be accurately controlled, so that the proportion of the resin, the water and the cement meets the design standard, and therefore, the measurement and control of the resin amount is an important content in the curing treatment.
The common domestic methods for measuring the solid-liquid or gas-solid interface comprise the following steps: the floating sphere method, the reflection method, the dielectric constant method.
The floating ball method comprises the following steps: the difference between the densities of water and resin is very small, so that the equivalent density of the floating ball is required to be accurate. In the measuring process, the rate of impurities dissolved in water is changed continuously, and when the density is lower than 1 or higher than 1.06, the floating ball cannot be positioned at the interface of the liquid level, so that the result is completely wrong. When the water density is changed between 1 and 1.06, the floating ball is positioned at the solid-liquid interface, but the position of the floating ball relative to the interface is also changed due to the change of the density, and the change size is in direct proportion to the diameter of the floating ball. When the water density changes by 1% (from 1 to 1.01), an error of one sixth of the float ball diameter occurs. Therefore, the floating ball method has the problems of larger error and even reliability.
A reflection method: the light (ultrasonic wave) is still positioned on the interface, a beam of pulse light is emitted, the light is reflected by the interface, and the interface distance can be converted by measuring the time difference between the emission and the return of the pulse light. Or calculating the change of the interface height through the height change and the change of the reflection angle. Since the resin particles are small, the reflection is diffuse reflection, the reflection angle is uncertain (the reflection angle method is not applicable), and the intensity of the reflected light is small (and the fluctuation is large, even no optical signal exists at the receiving element). The reliability of the reflection method is low. In addition, the ultrasonic probe cannot be positioned above the water surface, otherwise most of sound signals can be reflected at the water surface, and if the probe is positioned in water, the sound wedge on the ultrasonic transducer is made of engineering plastics and is easy to damage in a radiation environment.
Dielectric constant method: the dielectric constants of water and resin are basically consistent, and the dielectric constant is greatly changed due to the change of dissolved impurities in the water, so that great errors can be generated in the measurement of the capacitance and the microwave wave speed.
And because the liquid level and the resin/water boundary height need to be measured doubly, the common single-interface measuring instrument is not suitable any more. In such high radioactivity condition, once the measuring instrument is out of order, the maintenance is very inconvenient and expensive, so the radioactive waste resin interface measurement is always a difficult point.
Disclosure of Invention
In view of the above, the present invention provides a radioactive waste resin interface measuring device based on a magnetostrictive liquid level meter, which aims to solve the problems that the radioactive waste resin interface measurement in the prior art is not accurate and the liquid level and the height of the resin/water interface cannot be measured simultaneously.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a radioactive waste resin interface measuring device based on a magnetostrictive liquid level meter comprises the magnetostrictive liquid level meter, wherein the magnetostrictive liquid level meter comprises a meter head and a detection rod, the magnetostrictive liquid level meter also comprises a water level floater and a resin floater, the water level floater and the resin floater are both slidably sleeved on the detection rod, and the water level floater is positioned above the resin floater;
the measuring device also comprises a traction device, a cable and a lifting claw; the cable is connected with the traction device, and the lifting claw is fixed on the cable; the lifting claw is positioned below the resin floater, and when the traction device drives the lifting claw to ascend through a cable, the resin floater is lifted by the lifting claw;
the measuring device further comprises a box body and a control box, the gauge head and the traction device are arranged in the box body, and the gauge head and the traction device are connected with the control box in a data communication mode.
As a further technical solution of the above scheme, the measuring device further includes a spring, the spring is sleeved on the detecting rod, and the upper end of the spring is fixedly connected with the box body.
As a further technical solution of the above aspect, the lifting claw includes a plurality of cutting claws.
As a further aspect of the above aspect, the cable is located in a gap between the resin float and the detection rod.
As a further technical scheme of the scheme, the bottom of the box body is fixedly connected with a flange plate.
As a further technical scheme of the scheme, the lower end of the detection rod is connected with a heavy hammer.
As a further technical solution of the above aspect, the resin float includes a housing and a weight block provided in the housing.
As a further technical scheme of the scheme, the shell is in an ellipsoid shape.
As a further technical solution of the above aspect, the traction device includes an encoder, a motor, a first pulley, and a second pulley; the encoder, the motor and the first belt wheel are all arranged in the box body, the first belt wheel is arranged on a rotating shaft of the motor, the second belt wheel is arranged at the lower end of the detection rod, and the cable is wound between the first belt wheel and the second belt wheel; the encoder is connected with the motor, and the encoder and the motor are in data communication connection with the control box.
As a further technical scheme of the above scheme, a radiation-proof compartment is arranged in the box body, and the gauge outfit, the encoder and the motor are all arranged in the radiation-proof compartment.
In summary, compared with the prior art, the invention has the following advantages and beneficial effects: the invention measures the resin interface with irradiation by combining the magnetostrictive liquid level meter measuring principle, the special floating ball design and the special lifting device, and can simultaneously measure the liquid level and the height of the resin/water interface. The invention has environmental protection which is incomparable with other technical devices, high automation degree, convenient operation, good measuring effect, safety and environmental protection. The method has strong competitiveness from both technical and long-term economy, can save a very objective environmental pollution treatment cost and a large amount of time for a nuclear power unit, and provides a new technology for radioactive waste resin interface measurement.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic view of a cutting mechanism in a-a direction of fig. 1, and the water level float and the resin float are omitted for clarity of the structure.
Fig. 3 is a schematic top view of the structure of fig. 1.
The explanation of each reference number in the figure is: the device comprises a box body 101, a mounting plate 102, a partition plate 103, a Glan head 104, a flange plate 105, a spring 106, a radiation-proof compartment 107, an encoder 201, a motor 202, a first belt pulley 203, a cable 204, a lifting claw 205, a detection rod 301, a water level floater 302, a resin floater 303 and a heavy hammer 304.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the present invention will be further described in detail with reference to the following embodiments.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. The terms first, second and the like, if any, are used for distinguishing technical features only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
As shown in fig. 1-3, a radioactive waste resin interface measuring device based on a magnetostrictive liquid level meter according to an embodiment of the present application includes a magnetostrictive liquid level meter, where the magnetostrictive liquid level meter includes a gauge head and a probe rod 301, the magnetostrictive liquid level meter further includes a water level float 302 and a resin float 303, the water level float 302 and the resin float 303 are both slidably sleeved on the probe rod 301, and the water level float 302 is located above the resin float 303. The measuring device further comprises a pulling device, a cable 204 and a lifting claw 205; the cable 204 is connected to the traction device, and the lifting claw 205 is fixed to the cable 204; the lifting claw 205 is located below the resin float 303, and when the pulling means lifts the lifting claw 205 by the cable 204, the resin float 303 is lifted by the lifting claw 205. The measuring device further comprises a box body 101 and a control box, the gauge head and the traction device are arranged in the box body 101, and the gauge head and the traction device are connected with the control box in a data communication mode.
The magnetostrictive liquid level meter is a magnetostrictive liquid level displacement sensor. A float is arranged outside a sensor measuring rod of the magnetostrictive liquid level meter, and the float can move up and down along the measuring rod along with the change of the liquid level. A group of permanent magnetic rings is arranged in the floater. When the pulse current magnetic field meets the magnetic ring magnetic field generated by the floater, the magnetic field around the floater changes, so that the waveguide wire made of magnetostrictive material generates a torsional wave pulse at the position of the floater, and the pulse is transmitted back along the waveguide wire at a fixed speed and is detected by the detection mechanism. The position of the float, i.e. the position of the liquid level, can be accurately determined by measuring the time difference between the pulse current and the torsional wave. The technical advantages of magnetostrictive level gauges are: the magnetostrictive liquid level meter is suitable for measuring the liquid level of the cleaning liquid level with high precision requirement, the precision reaches 1mm, and the precision of the latest product can reach 0.1 mm. The magnetostrictive liquid level meter can also be applied to boundary level measurement between two different liquids. The explosion-proof design is suitable for dangerous occasions, and the volume can be calculated by the intelligent electronic circuit design; the only movable part is the float, and the maintenance amount is extremely low. The embodiment of the application makes use of the principle to prepare the device for measuring the radioactive waste resin interface. The measurement performance of the measuring device is mainly ensured by a magnetostrictive liquid level meter, and the resin floater 303 which is specially designed can accurately suspend and stay at the interface between the resin and the water. The magnetic ring in the resin floater 303 acts on the detection rod 301, the position signal is transmitted to the gauge head, and the gauge head analyzes and processes the signal and calculates the interface value of the resin. Meanwhile, the water level floater 302 suspended on the water surface can also send out a measuring signal, and the distance to the water surface can also be measured, so that the aim of simultaneously measuring the height of the resin interface and the water surface by one instrument is fulfilled. There may be a case of hardening due to the radioactive waste resin standing for a certain period of time, and the resin float 303 may be stuck due to its particles between the resin float 303 and the probe rod 301 or the cable 204, and the measurement may not be possible after the sticking. Therefore, the embodiment of the present application further specifically designs a set of lifting device, in the case that the resin float 303 is stuck, the resin float 303 is lifted to a certain height by the traction device, the cable 204 and the lifting claw 205, so as to break the fixed state between the resin float 303 and the detection rod 301, and the resin float 303 is restored to the freely slidable state relative to the detection rod 301.
Then, in order to lower the lifted resin float 303 to return to the original measurement position, the measurement apparatus according to the embodiment of the present application further includes a spring 106, the spring 106 is sleeved on the detection rod 301, and an upper end of the spring 106 is fixedly connected to the box 101. When the resin float 303 is lifted to a certain height by the lifting claws 205, the water level float 302 and the spring 106 are pressed, and then the water level float 302 and the resin float 303 are descended by the restoring force provided by the spring 106, and then the water level float 302 and the resin float 303 are automatically suspended to the water surface and the interface between the water surface and the resin due to the self-tendency density. The lifting claw 205 then causes the cable 204 to descend below the resin float 303 by the pulling device. The resin floater 303 and the detection rod 301 are lifted and pressed down repeatedly, so that the gap between the resin floater 303 and the detection rod 301 is not filled with resin, the resin floater 303 is restored to a state of freely sliding relative to the detection rod 301, and the measurement effect is ensured.
If the resin is hardened seriously, the resin float 303 may not keep the clearance smooth for a long time just by moving up and down. For this purpose, the lifting claw 205 in the embodiment of the present application further includes a plurality of cutting claws, and the cutting claws are designed in a blade claw type, so that when the resin is hardened or stuck seriously, the blade claw type lifting device can cut the resin, thereby achieving the purpose of moving the resin float 303. Meanwhile, the lifting claw 205 of the lifting device is designed to be of a blade structure, and when the claw is sunk in the resin, the resin can be cut, so that the lifting purpose is achieved, and the failure rate of lifting of the device is reduced.
In order to achieve better lifting of the resin float 303, effectively crushing hardened resin in the gap, the cable 204 is located in the gap between the resin float 303 and the probe rod 301. In this way, the cable 204 itself can also frictionally comminute the resin while also reducing the bulk of the embodiments of the subject application.
Further, the lower end of the detection rod 301 is connected to a weight 304. The weight 304 is hung at the end of the probe 301, and the probe 301 is kept vertical by gravity to ensure the measurement accuracy.
The design of the resin floater 303 needs to consider the gap between the cable 204 or the detection rod 301 and the resin floater 303, the gap is designed to be larger than 2.5 times of the diameter of the resin particles at present, and the blocking resistance needs to be repeatedly verified through later tests, so that the blocking resistance is improved to the maximum while the measurement accuracy is ensured. The diameter of the cable 204 itself is small and does not affect the gap spacing.
Meanwhile, the resin floater 303 is designed into an adjustable density floating ball in the embodiment of the application, and comprises a shell and a balancing weight arranged in the shell. In the test process, the density of the resin floater 303 can be continuously adjusted by adjusting the balance weight level, and coarse adjustment and fine adjustment can be performed by different balancing weights, so that the resin floater 303 can reach the optimal measurement density. Furthermore, the shell is ellipsoidal, namely disc-shaped, so that the balancing weight in the shell can be dispersed in the shell as far as possible and gathers the bottom, the equivalent density of the whole resin floater 303 is more uniform, and the suspension state can be guaranteed.
In order to facilitate the installation of the device, a flange 105 is fixedly connected to the bottom of the box 101, so that the storage tank filled with the radioactive waste resin can be conveniently installed and connected.
In order to ensure that the lifting of the resin floater 303 is always smooth, the traction device comprises an encoder 201, a motor 202, a first belt pulley 203 and a second belt pulley; the encoder 201, the motor 202 and the first belt pulley 203 are all arranged in the box body 101, the first belt pulley 203 is arranged on a rotating shaft of the motor 202, the second belt pulley is arranged at the lower end of the detection rod 301, and the cable 204 is wound between the first belt pulley 203 and the second belt pulley; the encoder 201 is connected with the motor 202, and both the encoder 201 and the motor 202 are connected with the control box in a data communication manner. Specifically, the encoder 201 and the motor 202 are fixedly mounted in the box 101 through the mounting plate 102. The first pulley 203 and the second pulley are driven by the motor 202 to rotate, so that the cable 204 can move back and forth around the first pulley 203 and the second pulley.
Because the radioactive waste resin has stronger radiation capability and easily influences the operation of the electronic equipment, therefore, the embodiment of the application also separates a radiation-proof compartment 107 in the box body 101 through the partition plate 103, and the gauge outfit, the encoder 201 and the motor 202 are all arranged in the radiation-proof compartment 107 so as to isolate the influence of radiation on the electronic equipment.
The operation and the control of whole device are accomplished by the control box in a distance, still are equipped with the glan head 104 on box 101, through cable connection box 101 and control box to guarantee that the control box keeps away from the radiation, guarantee operating personnel's safety. For other critical areas of the application that may be affected by radiation, shielding material such as lead may be used, for example, for the walls of the radiation-proof compartment 107 to ensure the accuracy of the measurement, but it is not desirable to use lead for all components, since this would greatly increase the overall weight of the device.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above preferred embodiments should not be considered as limiting the invention, which is subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. A radioactive waste resin interface measuring device based on a magnetostrictive liquid level meter, comprising the magnetostrictive liquid level meter, wherein the magnetostrictive liquid level meter comprises a gauge head and a detection rod (301), and is characterized in that: the magnetostrictive liquid level meter further comprises a water level floater (302) and a resin floater (303), wherein the water level floater (302) and the resin floater (303) are sleeved on the detection rod (301) in a sliding mode, and the water level floater (302) is located above the resin floater (303);
the measuring device further comprises a pulling device, a cable (204) and a lifting claw (205); the cable (204) is connected with the traction device, and the lifting claw (205) is fixed on the cable (204); the lifting claw (205) is positioned below the resin floater (303), and when the traction device drives the lifting claw (205) to lift through a cable (204), the resin floater (303) is lifted by the lifting claw (205);
the measuring device further comprises a box body (101) and a control box, the gauge head and the traction device are arranged in the box body (101), and the gauge head and the traction device are connected with the control box in a data communication mode.
2. A magnetostrictive level gauge-based radioactive spent resin interface measurement device according to claim 1, wherein: the measuring device further comprises a spring (106), the spring (106) is sleeved on the detection rod (301), and the upper end of the spring (106) is fixedly connected with the box body (101).
3. A magnetostrictive level gauge-based radioactive spent resin interface measurement device according to claim 1, wherein: the lifting claw (205) comprises a plurality of cutting claws.
4. A magnetostrictive level gauge-based radioactive spent resin interface measurement device according to claim 1, wherein: the cable (204) is located in a gap between the resin float (303) and the detection rod (301).
5. A magnetostrictive level gauge-based radioactive spent resin interface measurement device according to claim 1, wherein: and the bottom of the box body (101) is fixedly connected with a flange plate (105).
6. A magnetostrictive level gauge-based radioactive spent resin interface measurement device according to claim 1, wherein: the lower end of the detection rod (301) is connected with a heavy hammer (304).
7. A magnetostrictive level gauge-based radioactive spent resin interface measurement device according to claim 1, wherein: the resin float (303) includes a housing and a weight block disposed within the housing.
8. A magnetostrictive level gauge-based radioactive spent resin interface measurement device according to claim 7, wherein: the shell is ellipsoidal.
9. A magnetostrictive level gauge-based radioactive spent resin interface measurement device according to claim 1, wherein: the traction device comprises an encoder (201), a motor (202), a first belt pulley (203) and a second belt pulley; the encoder (201), the motor (202) and the first belt wheel (203) are all arranged in the box body (101), the first belt wheel (203) is installed on a rotating shaft of the motor (202), the second belt wheel is arranged at the lower end of the detection rod (301), and the cable (204) is wound between the first belt wheel (203) and the second belt wheel; the encoder (201) is connected with the motor (202), and the encoder (201) and the motor (202) are in data communication connection with the control box.
10. A magnetostrictive level gauge-based radioactive spent resin interface measurement device according to claim 9, wherein: be equipped with in box (101) and protect against radiation compartment (107), gauge outfit, encoder (201) and motor (202) all locate in this protects against radiation compartment (107).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111628712.4A CN114279531A (en) | 2021-12-28 | 2021-12-28 | Radioactive waste resin interface measuring device based on magnetostrictive liquid level meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111628712.4A CN114279531A (en) | 2021-12-28 | 2021-12-28 | Radioactive waste resin interface measuring device based on magnetostrictive liquid level meter |
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| CN114279531A true CN114279531A (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111628712.4A Pending CN114279531A (en) | 2021-12-28 | 2021-12-28 | Radioactive waste resin interface measuring device based on magnetostrictive liquid level meter |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6253611B1 (en) * | 1996-05-11 | 2001-07-03 | Seetru Limited | Magnetic float type liquid level gauges |
| CN102749123A (en) * | 2012-07-25 | 2012-10-24 | 成都中核鑫星应用技术研究所 | Radioactive waste resin interface measuring device based on lifting device and application method thereof |
| CN209639803U (en) * | 2019-05-14 | 2019-11-15 | 中国核动力研究设计院 | A kind of radioactive spent resin liquid level and interface-measuring device |
| CN110726457A (en) * | 2019-10-24 | 2020-01-24 | 中国核动力研究设计院 | Integrated waste resin liquid level interface measuring system |
| CN111561982A (en) * | 2020-06-17 | 2020-08-21 | 烟台创为新能源科技股份有限公司 | Liquid level detection device and box with same |
| JP6809684B1 (en) * | 2020-09-09 | 2021-01-06 | Ｉｎｎｏｖａｔｉｏｎ Ｆａｒｍ株式会社 | Liquid level measuring device |
| CN213041324U (en) * | 2020-09-24 | 2021-04-23 | 上海雄润环氧材料有限公司 | Epoxy production is with level gauge device for wide range |
-
2021
- 2021-12-28 CN CN202111628712.4A patent/CN114279531A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6253611B1 (en) * | 1996-05-11 | 2001-07-03 | Seetru Limited | Magnetic float type liquid level gauges |
| CN102749123A (en) * | 2012-07-25 | 2012-10-24 | 成都中核鑫星应用技术研究所 | Radioactive waste resin interface measuring device based on lifting device and application method thereof |
| CN209639803U (en) * | 2019-05-14 | 2019-11-15 | 中国核动力研究设计院 | A kind of radioactive spent resin liquid level and interface-measuring device |
| CN110726457A (en) * | 2019-10-24 | 2020-01-24 | 中国核动力研究设计院 | Integrated waste resin liquid level interface measuring system |
| CN111561982A (en) * | 2020-06-17 | 2020-08-21 | 烟台创为新能源科技股份有限公司 | Liquid level detection device and box with same |
| JP6809684B1 (en) * | 2020-09-09 | 2021-01-06 | Ｉｎｎｏｖａｔｉｏｎ Ｆａｒｍ株式会社 | Liquid level measuring device |
| CN213041324U (en) * | 2020-09-24 | 2021-04-23 | 上海雄润环氧材料有限公司 | Epoxy production is with level gauge device for wide range |
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