阅读说明：本技术 一种核电站用液体放射性废物输送倒运装置及转运方法 (Liquid radioactive waste conveying and transporting device and method for nuclear power station ) 是由 贾晓鸿 黄国兴 张藤飞 赵国辉 马强志 庞宇 吕涛 樊凯军 李阳 史才义 于 2021-09-06 设计创作，主要内容包括：本发明属于核电站固废处理系统技术领域,具体涉及一种核电站用液体放射性废物输送倒运装置及转运方法。本发明中,废树脂储罐与蒸残液储罐顶部通过管道连接,废树脂储罐与蒸残液储罐底部通过管道连接,顶部管道与底部管道通过管道连通,其连通管道上设有输送泵,顶部管道通过转运管道分别与蒸残液接口箱、废树脂接口箱的入口处连通,蒸残液接口箱通过废液处理管道与废液处理系统连通,废树脂接口箱出口通过除盐水管道与除盐水系统连通,蒸残液槽车、废树脂槽车分别与蒸残液接口箱、废树脂接口箱对接连接。本发明便于输送、易于冲洗液体放射性废物。(The invention belongs to the technical field of nuclear power station solid waste treatment systems, and particularly relates to a liquid radioactive waste conveying and transporting device and a transporting method for a nuclear power station. According to the invention, a waste resin storage tank is connected with the top of a raffinate storage tank through a pipeline, the waste resin storage tank is connected with the bottom of the raffinate storage tank through a pipeline, a top pipeline is communicated with a bottom pipeline through a pipeline, a conveying pump is arranged on a communicating pipeline of the waste resin storage tank, the top pipeline is respectively communicated with a raffinate interface box and an inlet of a waste resin interface box through a transfer pipeline, the raffinate interface box is communicated with a waste liquid treatment system through a waste liquid treatment pipeline, an outlet of the waste resin interface box is communicated with a demineralized water system through a demineralized water pipeline, and a raffinate tank car and a waste resin tank car are respectively in butt joint connection with the raffinate interface box and the waste resin interface box. The invention is convenient for conveying and easy for washing the liquid radioactive waste.)

1. The utility model provides a nuclear power station is with liquid radioactive waste transport device which characterized in that: comprises a waste resin storage tank (1), a raffinate storage tank (2), a delivery pump (3), a raffinate interface box (4), a waste resin interface box (5), a raffinate tank car (6), a waste resin tank car (7), a waste liquid treatment system (8) and a desalting system (9), wherein the waste resin storage tank (1) is connected with the top of the raffinate storage tank (2) through a pipeline, the waste resin storage tank (1) is connected with the bottom of the raffinate storage tank (2) through a pipeline, a top pipeline is communicated with a bottom pipeline through a pipeline, the delivery pump (3) is arranged on a communication pipeline of the waste resin storage tank and the raffinate interface box, the top pipeline is respectively communicated with the raffinate interface box (4) and an inlet of the waste resin interface box (5) through a transfer pipeline, the raffinate interface box (4) is communicated with the waste liquid treatment system (8) through a waste liquid treatment pipeline, an outlet of the waste resin interface box (5) is communicated with the desalting system (9) through a desalting pipeline, and the raffinate steaming tank car (6) and the waste resin tank car (7) are respectively in butt joint connection with the raffinate steaming interface box (4) and the waste resin interface box (5).

2. The apparatus for transporting and transporting liquid radioactive waste for nuclear power plant according to claim 1, wherein: waste resin storage tank (1) top is connected with the return water pipe, and the other end of return water pipe is connected to waste resin interface case (5), and the water of carrying waste resin returns waste resin storage tank (1) through the return water pipe.

3. The apparatus for transporting and transporting liquid radioactive waste for nuclear power plant according to claim 2, wherein: the transfer pipeline is provided with a tee joint on the pipeline connected with the waste resin interface box (5), and the third tee joint is connected with the water return pipeline through the pipeline.

4. The apparatus for transporting and transporting liquid radioactive waste for nuclear power plant according to claim 1, wherein: the residual distillation liquid transportation tank car (6) is loaded with residual distillation liquid and a slurry cyclone, and the residual distillation liquid transportation tank car (6) is powered through a power supply cable to confirm that the control system has no alarm signal.

5. The apparatus for transporting and transporting liquid radioactive waste for nuclear power plant according to claim 1, wherein: the waste resin transport tank wagon (7) is connected, and the power is supplied to the waste resin transport tank wagon (7) through the power supply cable to confirm that the control system has no alarm signal.

6. The apparatus for transporting and transporting liquid radioactive waste for nuclear power plant according to claim 1, wherein: and the raffinate steaming tank car (6) and the waste resin tank car (7) are respectively in butt joint connection with the quick connectors of the raffinate steaming connector box (4) and the waste resin connector box (5) through hoses.

7. The apparatus for transporting and transporting liquid radioactive waste for nuclear power plant according to claim 1, wherein: one end of the raffinate connector box (4) and one end of the waste resin connector box (5) are fixedly connected with a pipeline through welding, and the other section of the raffinate connector box adopts a dry-type quick joint with a double-ball valve structure.

8. A method for transferring liquid radioactive wastes for a nuclear power station is characterized by comprising the following steps: conveying and transferring residual distillation liquid: firstly, a distilled liquid tank car (6) is driven to a distilled liquid interface box (4), a hose at the tail of the tank car is connected with the distilled liquid interface box (4), a pipeline is filled with water to carry out hydrostatic test on the interface, no water drop leakage exists at the interface, and the distilled liquid begins to be conveyed; after putting the valve state on the pipeline, starting the delivery pump (3), transferring the distilled liquid in the distilled liquid storage tank (2) to the distilled liquid tank car (6) through the delivery pump (3) and the delivery pipeline, after the delivery is finished, finishing washing the delivery pipeline by using demineralized water, and enabling the flushing water to enter the tank car to finish the transfer.

9. A method for transferring liquid radioactive wastes for a nuclear power station is characterized by comprising the following steps: conveying and transferring waste resin: firstly, a waste resin tank car (7) is driven to a waste resin interface box (5), a hose at the tail of the tank car is connected with the waste resin interface box (5), a pipeline is filled with water to carry out hydrostatic test on an interface, no water drop leakage exists at the interface, and the residual distillation liquid begins to be conveyed; after the valve state on the conveying pipeline is set, the conveying pump (3) is started, waste resin in the waste resin storage tank (1) is conveyed to the waste resin tank car (7) through the conveying pump (3) and the conveying pipeline, after conveying is finished, the conveying pipeline is washed by using demineralized water, and after washing water enters the tank car, the waste resin storage tank (1) can be returned, and transfer is finished.

Technical Field

The invention belongs to the technical field of nuclear power station solid waste treatment systems, and particularly relates to a liquid radioactive waste conveying and transporting device and a transporting method for a nuclear power station.

Background

The KPC system of a unit No. 1 and 2 of a certain nuclear power station is a liquid radioactive waste solidification system and is used for carrying out cement solidification treatment on waste resin and residual distillation liquid sent by a liquid radioactive waste storage system (KPK) and cyclone slurry sent by a liquid radioactive waste treatment system (KPF).

A nuclear power base builds a radioactive waste treatment center (T4UKT) along with the No. 3 and No. 4 units, and is used for treating radioactive wastes generated by the No. 1-6 units.

T4UKT adopts grinding + hot super compaction processing technology to waste resin, through carrying out a series of operations such as ratio, grinding, stoving, hot superpressure, barrelling grout to concentrated radioactive waste resin, forms complete, stable waste package to waste resin volume reduction has realized by a wide margin.

T4UKT adopts dry in the bucket + super compaction processing technology to raffinate and mud, through carrying out a series of operations such as dry in the bucket, super compaction to the radioactivity concentrate, makes the volume reduction ratio of concentrate reach 7, has greatly reduced the wastes volume.

For this purpose, the radioactive wastes (waste resin, raffinate and sludge) generated from the units No. 1-6 are transported to T4UKT for centralized treatment by a waste transport tank car.

Because the auxiliary factory building of No. 1, No. 2 unit UKA does not have the interface with waste transport tank wagon complex, so need design a liquid radioactive waste transporting device to the realization passes through the tank wagon with the liquid radioactive waste of No. 1, No. 2 unit and transports to T4UKT centralized processing.

Disclosure of Invention

The invention aims to provide a liquid radioactive waste conveying and transporting device and a liquid radioactive waste conveying and transporting method for a nuclear power station, which are convenient to convey and easy to wash liquid radioactive waste.

The technical scheme adopted by the invention is as follows:

a liquid radioactive waste conveying and transporting device for a nuclear power station comprises a waste resin storage tank, a residual steaming liquid storage tank, a conveying pump, a residual steaming liquid interface box, a waste resin interface box, a residual steaming liquid tank truck, a waste resin tank truck, a waste liquid treatment system and a demineralized water system, wherein the waste resin storage tank is connected with the top of the residual steaming liquid storage tank through a pipeline, the waste resin storage tank is connected with the bottom of the residual steaming liquid storage tank through a pipeline, the top pipeline is communicated with the bottom pipeline through a pipeline, be equipped with the delivery pump on its intercommunication pipeline, the top pipeline passes through the transfer line respectively with the entrance intercommunication of distillation raffinate interface case, useless resin interface case, and distillation raffinate interface case passes through waste liquid treatment pipeline and waste liquid treatment system intercommunication, and the export of useless resin interface case is through demineralized water pipeline and demineralized water system intercommunication, and distillation raffinate tank wagon, useless resin tank wagon respectively with distillation raffinate interface case, useless resin interface case butt joint.

The waste resin storage tank top is connected with the return water pipe, and the other end of return water pipe is connected to waste resin interface case, and the water of carrying waste resin returns to waste resin storage tank through the return water pipe.

The transfer pipeline is provided with a tee joint on the pipeline connected with the waste resin interface box, and the third tee joint is connected with the water return pipeline through the pipeline.

The raffinate steaming and transporting tank truck is loaded with raffinate steaming and slurry cyclones, and power is supplied to the raffinate steaming and transporting tank truck through a power supply cable to confirm that the control system has no alarm signal.

The waste resin transport tank car is connected, and the power supply cable is used for supplying power to the waste resin transport tank car to confirm that the control system has no alarm signal.

And the raffinate steaming tank car and the waste resin tank car are respectively in butt joint connection with the quick connectors of the raffinate steaming connector box and the waste resin connector box through hoses.

One end of the raffinate connector box and one end of the waste resin connector box are fixedly connected with the pipeline through welding, and the other section of the raffinate connector box and the waste resin connector box adopt a dry-type quick joint with a double-ball valve structure.

A method for transferring liquid radioactive wastes for a nuclear power station comprises the following steps: firstly, driving a distilled liquid tank car to a distilled liquid interface box, connecting a hose at the tail of the tank car with the distilled liquid interface box, filling water into a pipeline to perform a hydrostatic test on the interface, and starting to convey the distilled liquid without water leakage at the interface; after putting the valve state on the pipeline, starting the delivery pump, transferring the residual steaming liquid in the residual steaming liquid storage tank to a residual steaming liquid tank car through the delivery pump and the delivery pipeline, after the delivery is finished, finishing washing the delivery pipeline by using demineralized water, and enabling the washing water to enter the tank car to finish the transfer.

A method for transferring liquid radioactive wastes for a nuclear power station comprises the following steps: firstly, a waste resin tank car is driven to a waste resin interface box, a hose at the tail part of the tank car is connected with the waste resin interface box, a pipeline is filled with water, a hydrostatic test is carried out on the interface, no water leakage exists at the interface, and the residual distillation liquid begins to be conveyed; after the valve state on the conveying pipeline is set, the conveying pump is started, waste resin in the waste resin storage tank is conveyed to the waste resin tank wagon through the conveying pump and the conveying pipeline, after conveying is finished, the conveying pipeline is washed by using demineralized water, the washing water can return to the waste resin storage tank after entering the tank wagon, and transfer is finished.

Compared with the prior art, the invention has the beneficial effects that:

through this transfer device, carry out the waste resin that cement solidification handled originally and evaporate raffinate respectively and carry out evaporate raffinate tank wagon and waste resin tank wagon, transport it to the T4UKT factory building through the tank wagon again and carry out centralized processing, can make field gulf 1, 2 units reduce radioactive solid waste about effectively reduced the output 127.4m of solid waste's production volume each year³。

The innovation points of the patent are as follows:

1) the invention relates to a liquid radioactive waste conveying and transporting device and a conveying method for a nuclear power station.

2) The invention relates to a liquid radioactive waste conveying and transporting device and a transporting method for a nuclear power station, which are used for transporting residual steam and waste resin to be treated to a waste treatment center for centralized treatment by a VVER nuclear power unit by using a tank car for the first time.

3) The liquid radioactive waste conveying and transporting device and the transporting method for the nuclear power station can realize the sealing hydrostatic test on the transporting interface and ensure that the waste resin or the residual distillation liquid cannot be leaked during each transporting.

4) The liquid radioactive waste conveying and transporting device and the transporting method for the nuclear power station can timely flush the conveying pipeline when waste resin or residual distillation liquid is completely transported each time, ensure the usability of the conveying pipeline and reduce the environmental dosage rate of an operation place.

5) The invention relates to a liquid radioactive waste conveying and transporting device and a transferring method for a nuclear power station, which can return waste resin conveying water to a waste resin storage tank while transporting waste resin, and reduce the generation amount of solid waste.

6) The invention relates to a liquid radioactive waste conveying and transporting device for a nuclear power station and a transporting method.

Drawings

FIG. 1: the invention provides a structural schematic diagram of a liquid radioactive waste conveying and transporting device for a nuclear power station;

in the figure: 1-waste resin storage tank, 2-raffinate storage tank, 3-transfer pump, 4-raffinate interface box, 5-waste resin interface box, 6-raffinate tank car, 7-waste resin tank car, 8-waste liquid treatment system, and 9-desalination system.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the liquid radioactive waste conveying and transporting device for a nuclear power station provided by the invention comprises a waste resin storage tank 1, a raffinate storage tank 2, a conveying pump 3, a raffinate interface box 4, a waste resin interface box 5, a raffinate tank wagon 6, a waste resin tank wagon 7, a waste liquid treatment system 8 and a demineralized water system 9, wherein the waste resin storage tank 1 is connected with the top of the raffinate storage tank 2 through a pipeline, and the pipelines close to the tops of the waste resin storage tank 1 and the raffinate storage tank 2 are respectively provided with a valve; the waste resin storage tank 1 is connected with the bottom of the raffinate steaming storage tank 2 through a pipeline, and a valve is respectively arranged on the pipeline close to the bottoms of the waste resin storage tank 1 and the raffinate steaming storage tank 2; the top pipeline is communicated with the bottom pipeline through a pipeline, a delivery pump 3 is arranged on the communicated pipeline, and two valves are respectively arranged at two ends of the delivery pump 3; the top pipeline is respectively communicated with inlets of the raffinate joint box 4 and the waste resin joint box 5 through transfer pipelines, and the pipelines at the inlets of the raffinate joint box 4 and the waste resin joint box 5 are respectively provided with two valves; the top of the waste resin storage tank 1 is connected with a water return pipeline, the other end of the water return pipeline is connected to a waste resin interface box 5, water for conveying waste resin returns to the waste resin storage tank 1 through the water return pipeline, a valve is arranged at the position, close to the top of the waste resin storage tank 1, of the water return pipeline, and two valves are arranged at the position, close to the waste resin interface box 5, of the water return pipeline; a tee joint is arranged on a pipeline of the transfer pipeline connected with the waste resin interface box 5, the third tee joint is connected with a water return pipeline through a pipeline, and a valve is arranged on a connecting pipeline; the raffinate interface box 4 is communicated with a waste liquid treatment system 8 through a waste liquid treatment pipeline, and a valve is arranged on the raffinate interface box; the outlet of the waste resin interface box 5 is communicated with a demineralized water system 9 through a demineralized water pipeline, and a valve is arranged on the outlet. And the raffinate tank car 6 and the waste resin tank car 7 are respectively in butt joint connection with the raffinate interface box 4 and the waste resin interface box 5.

And (3) loading the raffinate and the slurry of the cyclone by the raffinate transport tank car 6: a hose 6 and a power supply cable of the continuous distillation residual liquid transportation tank car are used for supplying power to the tank car to confirm that the control system has no alarm signal; the sealing hydrostatic test is carried out on the water filling of the connecting hose by opening the valve in the waste resin interface box 5 and the demineralized water valve, so as to ensure that the pipeline has no leakage; the raffinate storage tank 2 is stirred and mixed through the control console, then the valve state on the conveying line is set, the conveying pump 3 is started to convey the raffinate in the raffinate storage tank 2 to the raffinate transport tank car 6, and when the raffinate transport tank car 6 reaches a high liquid level, the system automatically switches to the raffinate storage tank circulation mode.

Loading waste resin to the waste resin transporting tank wagon 7: connecting a hose and a power supply cable of the waste resin transport tank wagon 7, and transmitting power to the waste resin transport tank wagon 7 to confirm that the control system has no alarm signal; the connection hose is filled with water to carry out a sealing hydrostatic test by opening a valve in the raffinate steaming connector box 4 and a demineralized water valve, so that no leakage of a pipeline is ensured; stirring the waste resin storage tank 1 through a control console, then setting the state of a valve on a conveying pipeline, starting a conveying pump 3 to convey the waste resin in the waste resin storage tank 1 to a waste resin conveying tank wagon 7, and simultaneously, pumping redundant waste resin conveying water in the waste resin conveying tank wagon 7 back to the waste resin storage tank 1 through a pump carried by the tank wagon; when the spent resin transporting tanker 7 reaches a high level, the system will automatically switch the valve to transport the spent resin back to the spent resin storage tank.

In order to send process wastes generated by a KPK system and a KPF system to a radioactive waste processing center (T4UKT) for centralized and efficient processing, a transfer pipeline is led out from an outlet pipeline of a transfer pump according to the transfer pump and a storage tank of the KPC system, the transfer pipeline is divided into two paths, wherein one path is used for transferring raffinate, and the other path is used for transferring waste resin; meanwhile, a water return pipeline is arranged in parallel with the pipeline for transferring the waste resin; an exhaust pipeline is specially designed for receiving the exhaust of the tank car and is connected to the interface box for collection and treatment; and a KBC-2 system demineralized water pipeline is additionally arranged for flushing the pipeline after the transportation.

The pipeline for transferring the residual distillation liquid and the waste resin and the exhaust pipeline for receiving the exhaust of the tank car are fixedly connected with the interface at one side of the interface box respectively through welding, and the other side of the interface box adopts a dry type quick joint with a double-ball valve structure. When in transportation, the waste resin transportation tank car 5 and the residual distillation liquid transportation tank car 2 are connected with the quick joint of the interface box through the hose.

When receiving waste resin and evaporating the raffinate, hose and quick-operation joint all are located the control area, and the structure of hose and quick-operation joint can not take place the drippage when ensureing to carry and break off, and the protective case on the tank wagon is connected on the factory building outer wall in order to guarantee that radioactive medium flows back to the control area when hose and quick-operation joint abnormal conditions appear, can not pollute the space outside non-control area and the factory building.

When the waste resin and raffinate transport vehicle runs on a road in a factory, the leakage detection system and the liquid level detection system of the tank car can ensure that no radioactive object is leaked in the transport process.

The working principle of the invention is as follows:

conveying and transferring residual distillation liquid: firstly, a raffinate steaming tank car 6 is driven to a raffinate steaming interface box 4, a hose at the tail of the tank car is connected with the raffinate steaming interface box 4, water is filled in a pipeline to carry out hydrostatic test on the interface, no water leakage exists at the interface, and then raffinate steaming can be conveyed. After the valve state on the conveying pipeline is set, the conveying pump 3 is started, the distilled liquid in the distilled liquid storage tank 2 is conveyed to the distilled liquid tank car 6 through the conveying pump 3 and the conveying pipeline, after the conveying is finished, the conveying pipeline is washed by the desalted water, and the washing water enters the tank car and is transferred completely.

Conveying and transferring waste resin: firstly, the waste resin tank wagon 7 is driven to the waste resin interface box 5 to form a tank

The hose at the tail part of the vehicle is connected with the waste resin interface box 5, water is filled into the pipeline to carry out hydrostatic test on the interface, no water drop leakage exists at the interface, and then the residual liquid can be conveyed. After the valve state on the conveying pipeline is set, the conveying pump 3 is started, the waste resin in the waste resin storage tank 1 is conveyed to the waste resin tank wagon 7 through the conveying pump 3 and the conveying pipeline in a hydraulic mode, after conveying is finished, the conveying pipeline is washed by using demineralized water, and the washing water can return to the waste resin storage tank 1 after entering the tank wagon and is transferred completely.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.