CN215179912U

CN215179912U - Power plant pressure vessel head nondestructive test device

Info

Publication number: CN215179912U
Application number: CN202121426804.XU
Authority: CN
Inventors: 李增
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-12-14
Anticipated expiration: 2031-06-25

Abstract

The utility model discloses a power plant's pressure vessel head nondestructive test device relates to head nondestructive test technical field, specifically is a power plant's pressure vessel head nondestructive test device, include the U type seat of connecting at a supporting bench inner wall through the slider and connect the connecting seat on the telescopic link top through adjusting bolt, the inner wall threaded connection of U type seat has the threaded rod, and the grip block has been cup jointed to the one end of threaded rod, and one side threaded connection of U type seat has spacing bolt. Through the cooperation setting between threaded rod and the grip block, can twist the threaded rod and make the grip block remove in U type seat, thereby will detect the ultrasonic detector fastening that uses in the inside of U type seat, avoided that the staff is handheld to detect, through the cooperation setting between connecting seat and the spacing knob, unscrew spacing knob and make L type branch rotate in the inside of connecting seat, thereby can make a supporting bench rotate, reach the ultrasonic detector of U type seat inside and can rotate the detection according to the circumstances.

Description

Power plant pressure vessel head nondestructive test device

Technical Field

The utility model relates to a head nondestructive test technical field specifically is a power plant's pressure vessel head nondestructive test device.

Background

The seal head is one of main pressure elements of the pressure container, is a part for enabling the pressure container to form a closed space, and is also used for reducing the principle that local stress is too high.

The utility model discloses a nuclear power plant pressure vessel head nondestructive test device who discloses in china utility model patent application publication specification CN209571235U, including the main shaft, set up to the central point who locates the head surface with rotatable mode puts, and the arm, one end are fixed in on the main shaft, and on the arm was located to the slide rail, on the slide rail was located with the arm with mobilizable mode, the slide rail set up with the arm is perpendicular, and determine module, including transmitting probe and receiving probe, transmitting probe and receiving probe locate on the slide rail with interval adjustable mode, the utility model provides a head nondestructive test device, its determine module have three degree of freedom on the head to make determine module can carry out all-round detection to the head, and then guaranteed that this head nondestructive test device's testing result accuracy is higher, guaranteed the safety in utilization of head.

But this utility model still has certain not enough when using, because the structure is too much, the operation is comparatively complicated, and is difficult for adjusting according to in service behavior.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a power plant's pressure vessel head nondestructive test device has solved the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a nondestructive testing device for a seal head of a pressure vessel of a power plant comprises a U-shaped seat connected with the inner wall of a supporting table through a slide block and a connecting seat connected with the top end of a telescopic rod through an adjusting bolt, the inner wall of the U-shaped seat is in threaded connection with a rotatable threaded rod, one end of the threaded rod is sleeved with a clamping plate used for clamping the ultrasonic detector in the U-shaped seat, a limiting bolt for limiting the U-shaped seat on the surface of the supporting platform is connected with one side of the U-shaped seat through threads, the inner wall of the connecting seat is inserted with an L-shaped supporting rod which can rotate in the connecting seat, the inner wall of the connecting seat is connected with a limiting knob through screw threads for limiting the L-shaped supporting rod in the connecting seat, the surface of the telescopic rod is sleeved with a supporting column, and the inner wall of the supporting column is in threaded connection with a fastening knob used for fastening the telescopic rod inside the supporting column.

Optionally, the fixed surface of support column is connected with the fixing base, the one end threaded connection of fixing base has the detachable to link up the piece, the one end threaded connection who links up the piece has the box of placing that is used for placing the required instrument when examining.

Optionally, the bottom fixedly connected with of support column is used for the base that supports, the side fixedly connected with L type support column of base, the L type support column is kept away from the one end fixedly connected with of base is used for removing the removal wheel of base.

Optionally, one end of the L-shaped supporting rod is fixedly connected with the supporting table, one end of the limiting knob penetrates through the inner wall of the connecting seat and abuts against the surface of the L-shaped supporting rod, and the surface of the L-shaped supporting rod is fixedly connected with a handle used for rotating the L-shaped supporting rod.

Optionally, one end of the fastening knob penetrates through the inner wall of the supporting column and is in threaded connection with the inner wall of the telescopic rod.

Optionally, one end of the limiting bolt penetrates through the inner wall of the U-shaped seat and abuts against the surface of the supporting table.

(III) advantageous effects

The utility model provides a power plant's pressure vessel head nondestructive test device possesses following beneficial effect:

this power plant's pressure vessel head nondestructive test device, cooperation setting between through threaded rod and the grip block, can twist the threaded rod and make the grip block remove in U type seat, thereby the ultrasonic detector fastening that will detect the use is in the inside of U type seat, it detects to have avoided that the staff is handheld, cooperation setting between through connecting seat and spacing knob, it makes L type branch rotate in the inside of connecting seat to unscrew spacing knob, thereby can make a supporting bench rotate, it can rotate according to the condition to reach the inside ultrasonic detector of U type seat and detect, cooperation setting between through support column and fastening knob, can carry out lift adjustment with the telescopic link in the inside of support column, thereby can cooperate the rotation of L type branch to adjust the use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 4 is an enlarged schematic structural diagram of the point B in fig. 1 according to the present invention.

In the figure: 1. a support table; 2. a U-shaped seat; 3. adjusting the bolt; 4. a telescopic rod; 5. a connecting seat; 6. a threaded rod; 7. a clamping plate; 8. a limit bolt; 9. an L-shaped strut; 10. a limit knob; 11. a support pillar; 12. fastening a knob; 13. a fixed seat; 14. a joining block; 15. placing the box; 16. a base; 17. an L-shaped support column; 18. a moving wheel; 19. a handle.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: a nondestructive testing device for a seal head of a power plant pressure vessel comprises a U-shaped seat 2 connected to the inner wall of a support table 1 through a sliding block and a connecting seat 5 connected to the top end of an expansion link 4 through an adjusting bolt 3, the connecting seat 5 can be adjusted at a certain angle at the top end of the expansion link 4 by screwing the adjusting bolt 3, the inner wall of the U-shaped seat 2 is in threaded connection with a rotatable threaded rod 6, one end of the threaded rod 6 is sleeved with a clamping plate 7 used for clamping an ultrasonic detector in the U-shaped seat 2, and the threaded rod 6 can be screwed to enable the clamping plate 7 to move in the U-shaped seat 2 through the matching arrangement between the threaded rod 6 and the clamping plate 7, so that the ultrasonic detector used for detection is fastened in the U-shaped seat 2, and the detection by a worker by holding the ultrasonic detector by hand is avoided;

one side of the U-shaped seat 2 is in threaded connection with a limiting bolt 8 for limiting the U-shaped seat 2 on the surface of the supporting platform 1, one end of the limiting bolt 8 penetrates through the inner wall of the U-shaped seat 2 and abuts against the surface of the supporting platform 1 tightly, the friction force between the limiting bolt 8 and the supporting platform 1 is increased by screwing, so that the U-shaped seat 2 is limited, an L-shaped supporting rod 9 capable of rotating inside the connecting seat 5 is inserted into the inner wall of the connecting seat 5, a limiting knob 10 for limiting the L-shaped supporting rod 9 inside the connecting seat 5 is in threaded connection with the inner wall of the connecting seat 5, one end of the L-shaped supporting rod 9 is fixedly connected with the supporting platform 1, one end of the limiting knob 10 penetrates through the inner wall of the connecting seat 5 and abuts against the surface of the L-shaped supporting rod 9, a handle 19 for rotating the L-shaped supporting rod 9 is fixedly connected with the surface of the L-shaped supporting rod 9, and a supporting column 11 is sleeved on the surface of the telescopic rod 4, a fixed seat 13 is fixedly connected to the surface of the supporting column 11, a detachable connecting block 14 is connected to one end of the fixed seat 13 in a threaded manner, and a placing box 15 for placing tools required in detection is connected to one end of the connecting block 14 in a threaded manner;

the inner wall of the supporting column 11 is in threaded connection with a fastening knob 12 used for fastening the telescopic rod 4 inside the supporting column 11, the limiting knob 10 is unscrewed to enable the L-shaped supporting rod 9 to rotate inside the connecting seat 5 through the matching arrangement between the connecting seat 5 and the limiting knob 10, so that the supporting table 11 can rotate, the ultrasonic detector reaching the inside of the U-shaped seat 2 can perform rotation detection according to the situation, the telescopic rod 4 can be adjusted in the lifting inside the supporting column 11 through the matching arrangement between the supporting column 1 and the fastening knob 12, so that the L-shaped supporting rod 9 can be adjusted to be used in cooperation with the rotation, one end of the fastening knob 12 penetrates through the inner wall of the supporting column 11 and is in threaded connection with the inner wall of the telescopic rod 4, the bottom end of the supporting column 11 is fixedly connected with a base 16 used for supporting, and the side face of the base 16 is fixedly connected with an L-shaped supporting column 17, one end of the L-shaped support column 17 far away from the base 16 is fixedly connected with a moving wheel 18 for moving the base 16.

The utility model discloses in, the device's working procedure as follows:

1. before use, the whole device is moved to a proper position through the moving wheel 18, then the telescopic rod 4 is adjusted to a proper height in the supporting column 11, and the fastening knob 12 is screwed, so that the telescopic rod 4 is fastened in the supporting column 11;

2. then, an ultrasonic detector is fastened inside the U-shaped seat 2 through the matching of a threaded rod 6 and a clamping plate 7, the U-shaped seat 2 slides on the surface of the supporting table 1 through the connection mode between the U-shaped seat 2 and the supporting table 1, and the U-shaped seat 2 is limited on the surface of the supporting table 1 when a limiting bolt 8 is screwed;

3. finally, the L-shaped support rod 9 is rotated inside the connecting seat 5 by screwing the limit knob 10 and the handle 19, and the device is moved by the moving wheel 18 according to the requirement to be matched with the rotation of the L-shaped support rod 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a power plant's pressure vessel head nondestructive test device, includes and connects U type seat (2) at a supporting bench (1) inner wall and connects connecting seat (5) on telescopic link (4) top through adjusting bolt (3) through the slider, its characterized in that: the utility model discloses a support structure of ultrasonic detector, including U type seat (2), the inner wall threaded connection of U type seat (2) has rotatable threaded rod (6), the one end of threaded rod (6) has been cup jointed and has been used for the inside grip block (7) that carry out the centre gripping to ultrasonic detector of U type seat (2), one side threaded connection of U type seat (2) has and is used for with U type seat (2) are in it carries out spacing stop bolt (8) to prop up the surface of supporting bench (1), the inner wall of connecting seat (5) is pegged graft and has can connecting seat (5) inside L type branch (9) of going on rotatoryly, the inner wall threaded connection of connecting seat (5) has and is used for with L type branch (9) are in the inside of connecting seat (5) carries out spacing stop knob (10), the surface of telescopic link (4) has been cup jointed support column (11), the inner wall threaded connection of support column (11) has and is used for with telescopic link (4) are in the inside of support column (11) is fastened fastening knob (12) .

2. The nondestructive testing device for the seal head of the pressure vessel of the power plant as recited in claim 1, characterized in that: the fixed surface of support column (11) is connected with fixing base (13), the one end threaded connection of fixing base (13) has detachable and links up piece (14), the one end threaded connection who links up piece (14) has and is used for placing the box (15) of placing of required instrument when detecting.

3. The nondestructive testing device for the seal head of the pressure vessel of the power plant as set forth in claim 2, characterized in that: the bottom fixedly connected with of support column (11) is used for base (16) that supports, the side fixedly connected with L type support column (17) of base (16), one end fixedly connected with that base (16) was kept away from in L type support column (17) is used for removing removal wheel (18) of base (16).

4. The nondestructive testing device for the seal head of the pressure vessel of the power plant as recited in claim 1, characterized in that: one end fixedly connected with of L type branch (9) brace table (1), just the one end of limit knob (10) runs through the inner wall of connecting seat (5) supports tightly the surface of L type branch (9), the fixed surface of L type branch (9) is connected with and is used for rotating handle (19) of L type branch (9).

5. The nondestructive testing device for the seal head of the pressure vessel of the power plant as recited in claim 1, characterized in that: one end of the fastening knob (12) penetrates through the inner wall of the supporting column (11) and is in threaded connection with the inner wall of the telescopic rod (4).

6. The nondestructive testing device for the seal head of the pressure vessel of the power plant as recited in claim 1, characterized in that: one end of the limiting bolt (8) penetrates through the inner wall of the U-shaped seat (2) and abuts against the surface of the supporting table (1).