CN217847447U - Water filter element dumping and righting device of radioactive filter - Google Patents

Abstract

The utility model discloses a water filter element toppling and righting device of a radioactive filter, which comprises a positioning piece; the positioning piece comprises a main body part, the bottom end of the main body part is provided with a positioning part and two clamping parts, the positioning part is used for positioning and connecting with the water filter element of the radioactive filter, and the two clamping parts are rotatably arranged on the positioning part; and the driving piece is used for driving the two clamping parts to move relatively so as to clamp or loosen the radioactive filter water filter element. The utility model discloses a radioactive filter water filter element emptys righting device has the guide effect under deep water and the environment that has the radiation, also can the centre gripping and carry the filter core under the filter core emptys or is in the non-concentric condition, has reduced operating time, and is efficient, has avoided operating personnel to receive the radioactivity and has shone to make simply, adopted the design of part modularization, make structural adjustment more convenient.

Description

Water filter element toppling and righting device of radioactive filter

Technical Field

The utility model relates to a nuclear power overhauls technical field, especially relates to a radioactive filter water filter core emptys righting device.

Background

Currently, in nuclear power overhaul, the TES spent filter cartridge replacement device 100 is used for replacement of spent filter cartridges generated by systems such as RCV, PTR, TEP, RPE, and SBD and for shielding transportation in a plant.

Specifically, referring to fig. 1, the radioactive filter water cartridge 200 (hereinafter may be simply referred to as a cartridge) is replaced as follows:

a) Before replacing the filter cartridge 200, the TES spent filter cartridge replacement device 100 is moved to the side of the filter chamber to be replaced, and by means of the cantilever crane, an operator removes the top cover plate of the filter and the filter shield cover press ring and manually removes the bolts;

b) Aligning the TES waste filter element replacing device 100 with a filter station, grabbing a new filter element mechanism, rotating a rotating disc of the replacing device to enable a shielding cover grabbing mechanism to be concentric with a shielding cover, descending the grabbing mechanism, and grabbing the shielding cover of the filter;

c) The turntable of the TES waste filter element replacing device 100 rotates to enable the waste filter element grabbing mechanism to be concentric with the filter elements 200, and the crane descends to enable the grabbing device to descend to grab the filter elements 200;

d) The TES spent filter cartridge replacement device 100 is moved to a transfer station, causing the shield cover gripping mechanism to be concentric with the adapter shield container;

e) The shielding cover grabbing mechanism descends to grab the shielding cover of the waste filter element shielding container;

f) The rotary disc rotates, makes useless filter core snatch the mechanism and be concentric with useless filter core shielding container, snatchs the mechanism and descends, puts useless filter core into shielding container.

The above-mentioned mounting method has several disadvantages as follows:

(1) Grabbing the filter element 200 requires ensuring that the device and the filter element 200 are in a concentric position

The use of the spent filter cartridge replacement device 100 for replacement must ensure that the grabbing mechanisms of the filter cartridge 200 and the spent filter cartridge replacement device 100 for replacement are in a concentric position, and the auxiliary gripper structure for the filter cartridge in the equipment needs to use a traveling crane, so that the equipment can only be operated when the filter cartridge 200 is in a vertical and concentric state.

(2) Emergency disposal mode under no-dumping condition

If the filter element 200 falls down or is improperly grabbed in the replacing process, the TES waste filter element replacing device 100 and the filter element 200 are not concentric, the existing equipment cannot operate the filter element, a related water system is always isolated, and a unit can be shut down under severe conditions, so that power cannot be generated. If manual centering of the filter element 200 is used, the centering personnel may be exposed to radioactive radiation.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in providing a radioactive filter water filter core emptys righting device.

The utility model provides a technical scheme that its technical problem adopted is: a tilting righting device for a water filter element of a radioactive filter is composed of

The positioning piece comprises a main body part, the bottom end of the main body part is provided with a positioning part and two clamping parts, the positioning part is used for positioning and connecting with the water filter element of the radioactive filter, and the two clamping parts are rotatably arranged on the positioning part;

and the driving piece is used for driving the two clamping parts to move relatively so as to clamp or release the water filter element of the radioactive filter.

Preferably, the positioning portion is provided with an installation groove, and the two clamping portions are installed in the installation groove through a rotating shaft.

Preferably, a guide groove is formed between the two opposite clamping parts, and the cross section size of the guide groove is gradually reduced from top to bottom;

the driving piece comprises a rod body and a conical part arranged at the bottom of the rod body, and the conical part axially moves along the guide groove to drive the two clamping parts to move relatively.

Preferably, the main body part is a hollow columnar structure, and the rod body penetrates through an inner hole of the positioning piece and is in threaded connection with the positioning piece.

Preferably, the driving member further comprises an operating portion connected to an end of the rod body away from the tapered portion.

Preferably, the operating part is fixedly connected or detachably connected with the rod body.

Preferably, one end of the positioning piece, which is far away from the positioning part, is provided with a cylindrical part.

Preferably, the radioactive filter water filter element dumping and righting device further comprises a holding part arranged on the periphery of the positioning part.

Preferably, the holding part is of a columnar structure, and the holding part is in threaded connection with the positioning piece.

Preferably, the cross section of the positioning part is H-shaped;

the positioning part comprises two side plates and a connecting plate, the two side plates are oppositely arranged, the connecting plate is connected with the two side plates, and the connecting plate defines two mounting grooves for the two clamping parts to mount.

The utility model discloses following beneficial effect has: the utility model discloses a radioactive filter water filter element toppling and righting device, which comprises a positioning part, wherein the positioning part comprises a main body part, the bottom end of the main body part is provided with a positioning part and two clamping parts, the positioning part is used for positioning and connecting with the radioactive filter water filter element, and the two clamping parts are rotatably arranged on the positioning part; and the driving piece is used for driving the two clamping parts to move relatively so as to clamp or release the water filter element of the radioactive filter. The device has the guide effect under deep water and the environment that has the radiation, also can the centre gripping and transport filter core under the filter core topples over or is in the non-concentric condition, has reduced operating time, and is efficient, has avoided operating personnel to receive the radioactivity and shines to simple manufacture has adopted the design of part modularization, makes the structure adjustment more convenient.

Drawings

In order to explain the technical solution of the present invention more clearly, the present invention will be further described with reference to the accompanying drawings and examples, it should be understood that the following drawings only show some examples of the present invention, and therefore should not be considered as limiting the scope, for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort. In the drawings:

FIG. 1 is a schematic view of a TES apparatus capturing a filter cartridge in the related art;

fig. 2 is a schematic illustration of a radioactive filter water cartridge toppling and centering device in some embodiments of the present disclosure;

fig. 3 is an exploded view of a radioactive filter water cartridge toppling and centering device in accordance with certain embodiments of the present invention;

fig. 4 is a cross-sectional view of a radioactive filter water cartridge dump centralizer in some embodiments of the present invention;

fig. 5 is a schematic bottom view of a radioactive filter water cartridge toppling and centering device according to some embodiments of the present invention.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", and the like are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present technical solution, and do not indicate that the device or element referred to must have a specific direction, and thus, should not be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Please refer to fig. 2 to 5, which are a tilting righting device for a water filter element of a radioactive filter according to some embodiments of the present invention, and can be used for righting and clamping the water filter element of the radioactive filter (hereinafter, may be referred to as a filter element for short), including a positioning member 1, the positioning member 1 includes a main body portion 11, a positioning portion 12 and two clamping portions 13 are disposed at a bottom end of the main body portion 11, the positioning portion 12 is used for positioning connection with the water filter element of the radioactive filter, and the two clamping portions 13 are rotatably mounted on the positioning portion 12;

and the driving part 2 is used for driving the two clamping parts 13 to move relatively so as to clamp or release the water filter core of the radioactive filter.

This radioactive filter water filter core emptys righting device has the guide effect under the deep water with have the environment of radiation, also can the centre gripping and carry the filter core under the filter core emptys or is in the non-concentric condition, has reduced operating time, and is efficient, has avoided operating personnel to receive the radioactivity and has shone to make simply, adopted the design of part modularization, make structural adjustment more convenient.

In some embodiments, the positioning portion 12 is provided with a mounting groove 123, each clamping portion 13 of the two clamping portions 13 is mounted in the mounting groove 123 through the rotating shaft 14, and a guide groove 131 is formed between the two clamping portions 13. Preferably, the two clamping portions 13 may be a block structure and may be a claw structure, and the peripheries of the two clamping portions 13 may be provided with a protective layer or a silica gel layer to reduce the abrasion influence on the filter element.

Referring to fig. 5, in some embodiments, the cross section of the positioning portion 12 is H-shaped, and may include two side plates 121 disposed oppositely and a connecting plate 122 connecting the two side plates, where the connecting plate 122 defines two mounting slots 123 for the two clamping portions 13 to mount on for the positioning portion 12.

Preferably, a guide groove 131 is formed above the opposite sides of the two clamping portions 13, and the cross-sectional size of the guide groove 131 gradually decreases from top to bottom.

The driving member 2 includes a rod 21 and a tapered portion 22 disposed at the bottom of the rod 21, and the tapered portion 22 moves axially along the guide slot 131 to drive the two clamping portions 13 to move relatively. Preferably, the guide groove 131 and the tapered portion 22 form a line contact fit when the device is operated, when the rod 21 moves downwards, the tapered portion 22 causes the clamping portion 13 to be opened towards two sides, and the tapered portion 22 is kept against the two clamping portions 13 during the downward movement of the rod until the two clamping portions 13 reach a proper opening angle, of course, the movement stroke of the tapered portion 22 can be adjusted according to the size of the filter cartridge, and is not limited specifically here.

Further, when the two clamping portions 13 are opened to proper positions, the clamping portions 13 will abut against the predetermined positions of the filter element, such as the middle small holes of the filter element, so as to prevent the filter element from falling off again in the process of righting and transferring. Then the filter core can be lifted up by manpower or a crane, and the filter core in a dumping filter core or a non-concentric state is adjusted to be in a vertical state and then transferred to an ideal position.

In some embodiments, the driving member 2 further comprises an operating portion 23 connected to an end of the rod 21 away from the tapered portion 22, and preferably, the two clamping portions 13 may be axisymmetrically arranged with respect to the tapered portion 22, and the user rotates the operating portion 23 to apply and transmit the torque to the whole device.

Preferably, the operating portion 23 is fixedly connected or detachably connected to the rod body 21. In this embodiment, the operation portion 23 is detachably connected to the rod body 21, so as to facilitate the disassembly, assembly, transportation and replacement. Preferably, the operating portion 23 is wedge-connected to the lever body 21.

Preferably, the upper portion of the rod 21 is provided with a mounting hole, and the operating portion 23 is of a cylindrical structure to pass through the mounting hole, or the operating portion 23 may be of a handwheel structure, and may be sleeved on one end of the rod 21 away from the tapered portion 22, and the operating portion 23 may be fixed to the rod 21 by a threaded connection. Alternatively, in other embodiments, the operating portion 23 and the rod 21 may be connected by welding. It is understood that the connection manner of the operating portion 23 and the rod 21 can be various, and is not limited in detail.

In some embodiments, the main body 11 is a hollow cylindrical structure, which may include but is not limited to a cylindrical structure, the rod 21 penetrates through the inner hole of the positioning element 1 and is in threaded connection with the positioning element 1, so that the rod 21 can drive the clamping portion to move, and the rod 21 can transmit a larger torque more stably during the movement. It will be appreciated that the inner bore wall of the body portion 11 is internally threaded and the stem 21 is externally threaded.

In some embodiments, one end of the positioning member 1, which is far away from the positioning portion 12, is provided with the cylindrical portion 5, and the cylindrical portion 5 is connected with the main body portion 11 in a welding manner, so that the rigidity and stability of the overall structure of the radioactive filter water filter element tilting and righting device are enhanced, the overall strength is improved, and the overall structure moves more stably during operation. In some embodiments, the cylindrical portion 5 may be a reinforcing nut.

In some embodiments, the tipping righting device of the radioactive filter water filter element further comprises a holding part 3 arranged on the periphery of the positioning part 1, when the filter element is tipped or in a non-concentric state, a user can insert the positioning part 12 into a middle circular hole of the filter element, in the process, the operator can manually rotate the main body part 11 by gripping the holding part 3, and the insertion length of the positioning part 12 can be finely adjusted. By fine adjustment of the positioning portion 12, damage to the filter element can be effectively avoided. The holding part 3 can also be used for being connected with a lifting appliance to carry out lifting operation. Alternatively, the grip portion 3 may be provided with a lifting lug, a lifting ring, or the like. It will be appreciated that the grip portion 3 can be operated by remote adjustment or the crane can lift the grip portion 3 upwards to adjust the position of the pouring or non-concentric filter element to the vertical position and then to the desired position.

In some embodiments, the holding portion 3 is a cylindrical structure, and the holding portion 3 is screwed with the positioning member 1 to facilitate the movement of the main portion 11, and in some embodiments, the holding portion 3 may also be a square structure. In some embodiments, the holding portion 3 may be a cylindrical structure, which may include a top wall and a peripheral wall extending downward from the periphery of the top wall, the peripheral wall is used for holding, the top wall is provided with a shaft hole of a through hole, and the shaft hole may be in threaded connection with the outer wall of the main body portion 11. Preferably, the grip portion 3 is disposed coaxially with the main body portion 11. In other embodiments, the grip 3 may be a wheel.

In some embodiments, the positioning member 1, the driving member 2, the gripping portion 3, etc. may be made of stainless steel or carbon steel.

In some embodiments, after the filter element is tilted or the filter element is adjusted to be in the vertical state and then shifted to the desired position, the user can push the rod 21 out of the main portion 11 by rotating the operating portion 23, so that the tapered portion 22 is not forced to contact with the clamping portion 13, the clamping portion 13 returns to the natural state, the user can grip the clamping portion 3 to draw out the positioning portion 12, and then the whole radioactive filter water filter element tilting and centering device is withdrawn from the filter element.

Furthermore, the clamping part 13 matched with the size of the small hole of the filter element can be manufactured according to the size of the small hole of the filter element on site, and the main part 11 matched with the length of the filter element can be manufactured according to the dosage rate of the on-site radiation environment, so that the proper distance between a user and the filter element can be effectively controlled, and the radiation quantity received by the user can be reduced.

Understandably, the utility model discloses a radioactive filter water filter element emptys righting device has following advantage: the operation is simple and convenient, and 1 person can independently operate and finish the operation; the positioning is accurate, the efficiency is high, and the filter element can be prevented from being lost through fine adjustment of the holding part 3; the clamping part 13 is used for propping against the small hole in the middle of the filter element, so that the filter element can be prevented from falling off again in the righting and transferring processes; the manufacture is simple, and the structure adjustment is convenient; the system consists of a plurality of module parts, can be completed by a machining workshop of a power plant, and has low cost; the overall length of the device can be manufactured according to the size of the small hole of the filter element on site; the positioning piece 1 with a proper length can be manufactured according to the dosage rate of the field radiation environment, the distance between personnel and the filter element is reduced, and the irradiated dosage is less.

It is understood that the above examples only represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. A radioactive filter water filter element dumping and righting device is characterized by comprising

The positioning piece (1) comprises a main body part (11), a positioning part (12) and two clamping parts (13) are arranged at the bottom end of the main body part (11), the positioning part (12) is used for being connected with the water filter element of the radioactive filter in a positioning mode, and the two clamping parts (13) are rotatably installed on the positioning part (12);

a driving part (2) for driving the two clamping parts (13) to move relatively to clamp or release the water filter core of the radioactive filter.

2. Radioactive filter water cartridge tipping righting device according to claim 1, characterized in that the positioning portion (12) is provided with a mounting groove (123), the two clamping portions (13) being mounted in the mounting groove (123) by means of a rotating shaft (14).

3. -a radioactive filter water cartridge pouring and righting device according to claim 2, wherein a guide groove (131) is provided between the two opposite clamping portions (13), the cross-sectional dimension of said guide groove (131) decreasing from top to bottom;

the driving piece (2) comprises a rod body (21) and a conical part (22) arranged at the bottom of the rod body (21), and the conical part (22) moves axially along the guide groove (131) to drive the two clamping parts (13) to move relatively.

4. The radial filter water filter element pouring and righting device as claimed in claim 3, wherein the main body portion (11) is of a hollow columnar structure, and the rod body (21) is arranged in an inner hole of the positioning piece (1) in a penetrating mode and is in threaded connection with the positioning piece (1).

5. Radioactive filter water cartridge tipping righting device according to any one of claims 3 or 4, characterized in that the drive member (2) further comprises an operating portion (23) connected to an end of the rod body (21) remote from the conical portion (22).

6. Radioactive filter water cartridge tipping righting device according to claim 5, characterized in that the operating portion (23) is fixedly connected or detachably connected with the rod body (21).

7. Radioactive filter water cartridge tipping righting device according to claim 5, characterized in that the end of the positioning element (1) remote from the positioning portion (12) is provided with a cylindrical portion (15).

8. A radioactive filter water cartridge pouring and righting device according to claim 5, further comprising a holding portion (3) provided on the outer periphery of the positioning member (1).

9. Radioactive filter water cartridge pouring righting device according to claim 8, characterized in that the holding portion (3) is of a cylindrical structure, the holding portion (3) being in threaded connection with the positioning element (1).

10. Radioactive filter water cartridge tipping righting device as defined in any one of claims 2 to 4, characterized in that the positioning portion (12) is H-shaped in cross-section;

the positioning part (12) comprises two side plates (121) which are oppositely arranged and a connecting plate (122) which is connected with the two side plates (121), and the connecting plate (122) limits the positioning part (12) into two mounting grooves (123) for mounting the two clamping parts (13).

Images