Device for washing the precipitate and decontamination

 

(57) Abstract:

The inventive device comprises a cylindrical housing 1 with polskamebel 2, which has the inlet valve 4 with the stopper 3. Using the lower 5 and upper 6 discharge pipe ulsamer 2 communicates with the bottom 7 and top 8 washing heads, which are equipped with nozzles 9. The ends of the discharge tubes 5 and 6 are mounted coaxially with a gap in which is placed the valve 10, is rigidly connected with a thrust 11. The upper discharge pipe 6 provided with non-return valve 12. Using polycaproamide 13 and Flex 14 ulsamer communicates with the distributor 15, which is mounted on the flange 16. Polysaprobic 13 is mounted in the lower bearing support 17 mounted on the flange penetrations 18 into the container store. In the upper part of polysaprobic 13 is connected to the cap 20 placed inside the bearing support 21. The cap 20 provided with a bellows unit 22, the spindle 23 which is connected to the thrust 11. Head 20 has a clamp 24 which is attached by carrier 25 to the drive shaft of rotation 26. The advantages of the invention are expanding the technological capabilities of the device, reducing the level of radiation exposure when the UE is STI processing of radioactive waste, namely, devices for washing liquid jets sludge accumulated at the bottom of storage tanks for liquid radioactive waste high level of activity, as well as for translation of sediment in suspension to further extraction, processing and subsequent decontamination. In addition, the device can be used in other industries for mixing and averaging the concentrations of the reagents in containers.

A known design for sediment erosion and decontamination, including the actuator, a cylindrical housing, a chamber inlet fluid and the block representing the washer head (see USSR author's certificate 1356861, CL G 21 F 9/34, 1986).

For reasons that prevent obtaining the specified lower technical result when using the known device is that the complex design of the device entails a lack of reliability in its work, and the flow of working fluid through the side pipe located in the upper part of the structure, further complicates the use of decantate of the same capacity.

The closest device to the same destination to the claimed invention in conjunction prey fluid, cylindrical body, washing the head with nozzles, and the camera working fluid supply is equipped with an inlet valve located inside of the cylindrical body, and the camera working fluid is communicated to the junction block with the help of polycaproamide, as well as Flex and washing the cylinder through the discharge pipe between the housing and the actuator is mounted crank-beam mechanism.

Given the particular conditions of use, the device is characterized in that the washing head is placed below (or above the intake valve (see RF patent 2138870, CL G 21 F 9/34, 1999) that the applicant and adopted for the prototype.

For reasons that impede the achievement of specified following technical result when using the known device is that during operation without lengthening polycaproamide it is not possible to produce significant erosion along the height of the layers of sediment that exceeds the range of submerged jets. Elongation of polycaproamide connected with the depressurization of the vessel, which reduces the level of radiation safety.

The known devices of the upper and lower washing heads creates the need is m costs, but to reduce the level of radiation safety at work.

Use as a drive device rotates the drive and the crank mechanism only provides a continuous reciprocating rotary motion device, which reduces the efficiency of sediment erosion due to the reduction of the radius of the moving jets. It is also difficult to selective erosion of sediment in the desired direction and implementation of the discrete mode of the device.

In addition, the simultaneous installation of two known devices (with upper and lower washer head) in the center of the vessel will lead to the fact that when the device with the top washer head unflooded jet will enter the unit from the bottom of the washing head and part of the precipitation, which is situated behind the latter, will be out of range unflooded jets.

The aim of the invention is to provide opportunities layer-by-layer erosion of sediment in the tank without its depressurization, lowering the device as erosion of sediment.

The technical result is to expand the technological capabilities of the device, reducing radiation exposure by simplifying uselocale and decontamination, including the drive rotation body, washing the head with nozzles, through which the discharge pipe connected with the inlet valve chamber, the working fluid is placed inside the housing and communicating with the air-distributing unit using polycaproamide and Flex, the feature is that the device is equipped with two washing heads with nozzles which are placed above and below the inlet valve and connected to the camera by means of the delivery pipe and the discharge pipe to the top of the washing head is further provided with a check valve, and the discharge ends of the pipes placed in the chamber coaxially with a gap in which is installed a valve with attached to it a draft, which is placed inside polycaproamide, while in the upper part of polysaprobic connected to the tip, running bellows node and the spindle of the latter is connected with the thrust and the tip placed inside a bearing support mounted on the flange together with the drive and turn the distributor, in addition, the cap is set based on the bearing support clamp which is connected with the drive rotation via led.

Given the special conditions ispolzovanie drive rotation applied mechanism with a reciprocating rod, thirdly, swing drive is equipped with a remote control, which when compressed air into the chamber of the device enables the drive and turn it down for a specified time at the specified position.

In the study of the distinctive features of the described device is not identified with any known similar decisions concerning their use when implementing layer-by-layer erosion and sediment dissolution and bringing thus formed slurry to the required concentration in terms of device unavailability for maintenance and repair.

Conducted by the applicant, the analysis of the prior art available to patent and scientific and technical information sources has allowed to establish that similar, characterized by signs, identical to all the essential features of the invention, the applicant has not been found. The definition of the identified unique prototype, as the most similar in essential features analogue, has identified a set of essential towards perceived by the applicant to the technical result of the distinctive features in the claimed device, set forth in the claims that, according to the applicant, allows deletesetting solutions to identify signs coinciding with the distinctive features of the claimed device, showed that the claimed invention not apparent to the expert in the obvious way from the prior art, as defined by the applicant of the prior art have not identified the impact of changes under the essential features of the claimed invention, to achieve a technical result. Because the applicant proposes accordance with this invention, the criterion of "inventive step"

In Fig.1 shows a General view of the device in section.

In Fig.2 - the device is installed through the penetration into the container.

Information confirming the ability of the invention to provide the above result are as follows.

Device for washing the precipitate and decontamination comprises a cylindrical housing 1 with polskamebel 2, in which the limiter 3 is the inlet valve 4. Using the lower 5 and upper 6 discharge pipe ulsamer 2 communicates with the bottom 7 and top 8 washing heads, which are equipped with nozzles 9.

The ends of the discharge tubes 5 and 6 are mounted coaxially with a gap in which is placed the valve 10, hardwired oxoprost 13 and a flexible pipe 14 communicates with the distributor 15, mounted on the flange 16. Polysaprobic 13 is mounted in the lower bearing support 17 mounted on the flange penetrations 18 into the container 19. In the upper part of polysaprobic 13 is connected to the cap 20 placed inside the upper bearing support 21, which is also mounted on the flange 16.

The cap 20 provided with a bellows unit 22, the spindle 23 which is connected to the thrust 11. Head 20 has a clamp 24, which, based on the bearing support 21, which is attached by carrier 25 to the drive shaft of rotation 26.

The proposed device operates as follows.

The housing 1 of the device for washing the precipitate and decontamination placed in a container storage 19 through the driving of 18 on which rests the flange of the bearing support 17. The depth of immersion of the device in a container is selected so that the inlet valve 4 was immersed in decanter. Through the air-distributing unit 15 in the camera 2 politopoulou 13 alternately served vacuum and compressed air from an external source. When the supply pressure in chamber 2, the inlet valve 4 is opened to stop the stopper 3 and the tank 2 decantation or detergent solution. The check valve 12 prevents the flow of air is creative from the camera 2 is displaced in one of the discharge pipes 5 or 6 depending on the position of the valve 10.

The mode of operation of flooded streams is as follows.

Moving up the spindle 23 of the bellows unit 22 with attached draft 11, the valve 10 is tightened to the upper end of the injection pipe 6, blocking it. In this case, the solution from the chamber 2 is displaced in the lower discharge pipe 5 and then under pressure through the bottom of the washing head 7 flows from the nozzles 9 in the direction of arrangement of sediment.

Mode unflooded jets is thus.

When moving down the spindle 23 of the valve 10 is tightened to the lower end of the discharge pipe 5, blocking it. The solution from the chamber 2 flows into the upper discharge pipe 6 through the valve 12 and then at the top of the washing head 8 flows from the nozzles 9 in the direction of the sludge through the air.

For sediment erosion around the perimeter of the tank device using the actuator rotation 25 performs reciprocating motion around the axis of the 90o. The drive of rotation can be used mechanism of the electric linear reciprocating movement of the rod. When the extension rod mechanism on a given length United with him drove 24 turns the device on rotation: continuous and discrete.

In continuous mode, the drive rotation provides continuous reciprocating movement device 90o. This mode is applicable when the maintenance of the soft sediment in suspension.

In discrete mode, the drive rotation provides the device is rotated to the desired angle and the stop within the required time. This mode is used when washing the precipitate, allowing you to make selective erosion of sediment in the right direction, taking into account the geometric shape of the vessel or the density of the sediment.

Operation of the device at the layer-by-layer erosion of sediment is to first create a cavity flooded streams in the sediment layer, and then using located in the cavity of the solution, producing erosion sediment unflooded jets. While the pulsation pump periodically and removing the formed pulp and adding new portions of decantate.

Thus, the above data confirm that the implementation of the use of the claimed device the following cumulative conditions:

- the claimed device in its implementation is intended for use in industry, namely, the ATO is de, as it is described in the independent clause sets out the claims use described in the application of tools and techniques;

the tool embodying the claimed invention in its implementation, is able to achieve perceived by the applicant of the technical result.

Therefore, the claimed invention meets the criterion of "industrial applicability".

1. Device for washing the precipitate and decontamination, including the drive rotation body, washing the head with nozzles, through which the discharge pipe connected with the inlet valve chamber, the working fluid is placed inside the housing and communicating with the air-distributing unit using polycaproamide and Flex, characterized in that the device is equipped with two washing heads with nozzles, washer head placed above and below the inlet valve and connected to the camera by means of the delivery pipe and the discharge pipe to the top of the washing head is further provided with a check valve, and the discharge ends of the pipes placed in the chamber in alignment with the gap, in the installed valve with attached to it a draft, which is placed inside polycaproamide, the latter is connected with a thrust, and the tip is placed inside a bearing support mounted on the flange together with the drive and turn the distributor, in addition, the cap is set based on the bearing support clamp which is connected with the drive rotation via led.

2. The device under item 1, characterized in that the flexible tubing is made in the form of a spiral.

3. The device under item 1, characterized in that the drive of the rotation applied to the mechanism with a reciprocating rod.

4. The device according to p. 1, wherein the swing drive is equipped with a remote control, which when compressed air into the chamber of the device enables the drive and turn it down for a specified time at the specified position.

 

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FIELD: nuclear power engineering.

SUBSTANCE: compaction involves cutting members into fragments using electroerosive destruction of member wall by pulse spark-arch discharges emerging between member and electrode. In addition, high-temperature treatment in oxidizing medium, in particular vapor formed, is carried out. Cutting and heat treatment are accomplished in water.

EFFECT: simplified procedure and increased safety.

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