CN213562303U

CN213562303U - Instrument is extracted to nuclear power condenser front plug

Info

Publication number: CN213562303U
Application number: CN202022107063.0U
Authority: CN
Inventors: 王君义; 王金罡; 刘阳
Original assignee: Dalian Vino Engineering Equipment Co ltd
Current assignee: Dalian Vino Engineering Equipment Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-06-29
Anticipated expiration: 2030-09-23

Abstract

The utility model belongs to a nuclear power condenser front plug extracting tool, which comprises a pull rod, wherein a round rod is arranged on the upper part of the pull rod, and a pull rod body is arranged on the lower part of the pull rod; a baffle table is arranged at the upper part of the circular hole II; an L-shaped through hole communicated with the round hole II is formed in the pull rod body below the blocking table; a buckle with a plurality of barbs is arranged on the hole wall at the lower end of the round hole I, and a strip-shaped opening is arranged between every two barbs; a mandrel is arranged in the first round hole and the second round hole, a tension table is arranged at the lower end of the mandrel, a spring is sleeved on the mandrel between the tension table and the edge of the lower end of the second round hole, a screw hole is formed in the upper portion of the mandrel, and a shifting rod penetrates through the L-shaped through hole and then is connected with the screw hole through threads. The utility model is simple in operation, rapidly, can not produce the piece.

Description

Instrument is extracted to nuclear power condenser front plug

Technical Field

The utility model belongs to nuclear power station maintenance instrument, in particular to instrument is extracted to stopcock before nuclear power condenser.

Background

The condenser is a heat exchange device for condensing steam discharged after the drive turbine applies work, and a plurality of titanium pipes are arranged inside the condenser. When the condenser works, seawater is introduced into the titanium pipe, high-temperature steam discharged after the driving turbine applies work is arranged outside the titanium pipe, and the high-temperature steam is cooled and finally changed into condensed water through heat exchange with the high-temperature steam through circulation of the seawater. When the device is used, if one titanium pipe is damaged, the two ends of the titanium pipe are plugged by using the rear pipe plug, so that seawater is prevented from polluting steam. And in order to improve the sealing performance of the rear pipe plug after the rear pipe plug is installed, the rear pipe plug needs to be secondarily tensioned by additionally installing the front pipe plug in the rear pipe plug, the rear pipe plug needs to be pulled out of the titanium pipe when a unit is overhauled, the front pipe plug needs to be pulled out firstly before the rear pipe plug is pulled out, the front pipe plug is tapped on site by using a screw tap at present, and the screw tap is pulled out forcibly by using tools capable of clamping the screw tap, such as a pliers and the like, so that the front pipe plug is pulled out of the rear pipe plug. The operation process is very complicated and inconvenient, and wastes time and labor; the front pipe plug is also easy to damage in the tapping process, and the produced powder can also pollute the undamaged titanium pipe, thereby bringing hidden troubles to safety production.

Disclosure of Invention

The invention aims to overcome the defects and provide a tool which is provided with an elastic buckle clamp arranged at the front end of a pull rod to tightly clamp a front pipe plug and quickly pull a collision sleeve movably arranged on the pull rod by hand to backwards collide a stop block arranged at the rear end of the pull rod to generate tension and vibration so as to pull the front pipe plug out of a rear pipe plug.

The utility model provides a technical problem, the technical scheme who adopts is: a nuclear power condenser front pipe plug pulling-out tool comprises a pull rod, wherein a round rod is arranged on the upper portion of the pull rod, external threads are arranged on the upper portion of the round rod, a collision table is arranged at the upper end of a collision sleeve, a round hole III is arranged in the middle of the collision sleeve, and the collision sleeve is sleeved on the round rod through the round hole III; a check block is arranged on the external thread of the round rod, and a nut is arranged on the outer side of the check block; the lower part of the pull rod is provided with a pull rod body, and the pull rod is characterized in that a first round hole is formed in the center of the lower part of the pull rod body, and a second round hole communicated with the first round hole is formed in the center of the upper part of the pull rod body; a baffle table is arranged at the upper part of the circular hole II; an L-shaped through hole communicated with the round hole II is formed in the pull rod body below the blocking table; a buckle with a plurality of barbs is arranged on the hole wall at the lower end of the round hole I, and a strip-shaped opening is arranged between every two barbs; a mandrel is arranged in the first round hole and the second round hole, a tension table is arranged at the lower end of the mandrel, a spring is sleeved on the mandrel between the tension table and the edge of the lower end of the second round hole, a screw hole is formed in the upper part of the mandrel, and a deflector rod penetrates through the L-shaped through hole and then is connected and arranged in the screw hole through threads; the upper end face of the handle matched with the buckle for use is provided with a buckle withdrawing groove, and the included angle of the inner wall of the buckle withdrawing groove is alpha.

The included angle of the inner wall of the thread withdrawing groove is alpha, and the alpha is 20-45 degrees.

The utility model has the advantages that: the barb on the buckle that the pull rod lower part was equipped with catches on the inner wall of preceding stopcock and through the tensioning of the tight platform that rises on the dabber, again through hitting the impact and the vibration that set striking dog produced, can demolish preceding stopcock from the back stopcock very easily, easy operation, rapidly, can not produce the piece.

Drawings

The following description is made in detail by way of example with reference to the accompanying drawings.

FIG. 1 is a three-dimensional exploded view of a nuclear power condenser front plug extraction tool;

FIG. 2 is an operational schematic diagram of a nuclear power condenser front plug extraction tool;

fig. 3 is a three-dimensional view of the tie body of fig. 1.

In the figure: 1-a pull rod; 1-1-round bar; 1-2-external threads; 1-3-round hole I; 1-4-a tie rod body; 1-5-L-shaped through holes; 1-6-buckling; 1-7-opening; 1-8-blocking table; 1-9-round hole II; 2-mandrel; 2-1-a tensioning platform; 2-2-screw holes; 3-a deflector rod; 4-a handle; 4-1-removing the catching groove; 5-a spring; 6-sleeve collision; 6-1-round hole III; 6-2-bumping table; 7-a stop block; 8-a nut; 9-front pipe plug.

Detailed Description

In the embodiment, referring to the attached drawings, the tool for pulling out the front pipe plug of the nuclear power condenser comprises a pull rod 1, wherein a round rod 1-1 is arranged at the upper part of the pull rod 1, an external thread 1-2 is arranged at the upper part of the round rod 1-1, a collision table 6-2 is arranged at the upper end of a collision sleeve 6, a round hole III 6-1 is arranged in the middle of the collision sleeve 6, and the collision sleeve 6 is sleeved on the round rod 1-1 through the round hole III 6-1; a stop dog 7 is arranged on the external thread 1-2 of the round rod 1-1, and a nut 8 is arranged on the outer side of the stop dog 7; the lower part of the pull rod 1 is provided with a pull rod body 1-4, and the pull rod is characterized in that a round hole I1-3 is arranged at the center of the lower part of the pull rod body 1-4, and a round hole II 1-9 communicated with the round hole I1-3 is arranged at the center of the upper part of the pull rod body 1-4; a baffle table 1-8 is arranged at the upper part of the round hole II 1-9; an L-shaped through hole 1-5 communicated with the round hole II 1-9 is arranged on the pull rod body 1-4 below the baffle table 1-8; the hole wall at the lower end of the first round hole 1-3 is provided with a buckle 1-6 with a plurality of barbs, and a strip-shaped opening 1-7 is arranged between every two barbs; a mandrel 2 is arranged in the first round hole 1-3 and the second round hole 1-9, a tension table 2-1 is arranged at the lower end of the mandrel 2, a spring 5 is sleeved on the mandrel 2 between the tension table 2-1 and the lower end edge of the second round hole 1-9, a screw hole 2-2 is arranged at the upper part of the mandrel 2, and a deflector rod 3 is arranged in the screw hole 2-2 through threaded connection after penetrating through the L-shaped through hole 1-5; the upper end face of the handle 4 matched with the buckle 1-6 for use is provided with a buckle withdrawing groove 4-1, and the included angle of the inner wall of the buckle withdrawing groove 4-1 is alpha.

The included angle of the inner wall of the tripping groove 4-1 is alpha, and alpha is 30 degrees.

The operation method of the utility model is as follows:

1. the shifting rod 3 is shifted to the top end of the L-shaped through hole 1-5 and clamped on the transverse edge, the buckle 1-6 is aligned to an inner hole of the front pipe plug 9 and inserted, then the shifting rod 3 is pushed downwards, the buckle 1-6 bounces after the buckle 1-6 penetrates through the bottom of the front pipe plug 9, then the shifting rod 3 is shifted to the vertical edge of the L-shaped through hole 1-5, the mandrel 2 moves downwards under the action of the spring 5, the shifting rod 3 is just positioned at the bottom of the vertical edge of the L-shaped through hole 1-5 when the tensioning platform 2-1 at the front end of the mandrel 2 moves below the buckle 6, and the mandrel 2 stops moving so that the buckle 1-6 cannot be loosened due to rebounding.

2. Quickly moving the collision sleeve 6 upwards along the round rod 1-1, colliding the stop dog 7 with the collision sleeve 6, and taking out the front pipe plug 9 from the rear pipe plug after repeating for several times; the driving lever 3 is pushed to move upwards, and the tensioning platform 2-1 on the mandrel 2 leaves the lower part of the buckle 1-6.

3. The releasing groove 4-1 of the handle 4 is aligned with the buckle 1-6 and is pressed against the barb of the buckle 1-6, the barb retracts under the action of the releasing groove 4-1, and the front pipe plug 9 can be detached from the buckle 1-6.

Claims

1. A tool for pulling out a front pipe plug of a nuclear power condenser comprises a pull rod (1), wherein a round rod (1-1) is arranged at the upper part of the pull rod (1), external threads (1-2) are arranged at the upper part of the round rod (1-1), a collision table (6-2) is arranged at the upper end of a collision sleeve (6), a round hole III (6-1) is arranged in the middle of the collision sleeve (6), and the collision sleeve (6) is sleeved on the round rod (1-1) through the round hole III (6-1); a stop block (7) is arranged on the external thread (1-2) of the round rod (1-1), and a nut (8) is arranged on the outer side of the stop block (7); the lower part of the pull rod (1) is provided with a pull rod body (1-4), and the pull rod is characterized in that a round hole I (1-3) is arranged at the center of the lower part of the pull rod body (1-4), and a round hole II (1-9) communicated with the round hole I (1-3) is arranged at the center of the upper part of the pull rod body (1-4); a baffle table (1-8) is arranged at the upper part of the second round hole (1-9); an L-shaped through hole (1-5) communicated with the round hole II (1-9) is formed in the pull rod body (1-4) below the baffle table (1-8); the hole wall at the lower end of the round hole I (1-3) is provided with a buckle (1-6) with a plurality of barbs, and a strip-shaped opening (1-7) is arranged between every two barbs; a mandrel (2) is arranged in the first round hole (1-3) and the second round hole (1-9), a tension table (2-1) is arranged at the lower end of the mandrel (2), a spring (5) is sleeved on the mandrel (2) between the tension table (2-1) and the lower end edge of the second round hole (1-9), a screw hole (2-2) is formed in the upper portion of the mandrel (2), and the deflector rod (3) penetrates through the L-shaped through hole (1-5) and then is installed in the screw hole (2-2) in a threaded connection mode; the upper end face of the handle (4) matched with the buckle (1-6) for use is provided with a buckle withdrawing groove (4-1), and the included angle of the inner wall of the buckle withdrawing groove (4-1) is alpha.

2. The tool for pulling out the front pipe plug of the nuclear power condenser according to claim 1, wherein an included angle of an inner wall of the thread removing groove (4-1) is alpha, and the alpha is 20-45 degrees.