CN213562304U

CN213562304U - Instrument is extracted to nuclear power condenser back stopcock

Info

Publication number: CN213562304U
Application number: CN202022107101.2U
Authority: CN
Inventors: 王君义; 王金罡; 殷楠
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 rear plug extracting tool, which comprises a pull rod and is characterized in that a round rod is arranged on the upper part of the pull rod, external threads are arranged on the upper part of the round rod, a collision platform is arranged at the upper end of a collision sleeve, a third round hole is arranged in the middle of the collision sleeve, and the collision sleeve is sleeved on the round rod through the third round hole; a stop block is arranged on the external thread, and a nut is arranged on the outer side of the stop block; a pull rod body is arranged at the lower part of the pull rod, a second groove is arranged at the lower end of the pull rod body, and two groups of circular holes II are symmetrically arranged on two walls of the second groove; the upper portion of each clamping jaw is provided with a semicircular fluted disc, a first round hole is formed in the middle of the fluted disc, a semi-cylindrical hoop body is arranged at the lower end of the fluted disc, a first semicircular groove is formed in the upper side of the inner wall of the hoop body, a first convex edge is formed in the outer side of the lower end of the hoop body, and the hollow locking sleeve is sleeved on the pull rod body in a closed state of the two clamping jaws through the first convex edge. The utility model has the advantages that: the operation is simple and rapid, and no debris is generated.

Description

Instrument is extracted to nuclear power condenser back stopcock

Technical Field

The utility model belongs to nuclear power station maintenance instrument, in particular to instrument is extracted to stopcock behind 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 when the unit is overhauled, the rear pipe plug is pulled out from the titanium pipe, and the damaged titanium pipe is pulled out by a special tool for replacement. When the rear pipe plug is installed, the rear pipe plug is arranged in the titanium pipe in an interference mode, labor and time are consumed when the rear pipe plug is taken out, at present, the rear pipe plug is tapped on the spot by a screw tap, the screw tap is forcibly pulled out by using tools capable of clamping the screw tap, such as a pliers, and the rear pipe plug is pulled out of the titanium pipe. The operation process is very complicated and inconvenient, and wastes time and labor; the rear 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 provides a tool for pulling out a rear pipe plug from a titanium pipe by using two claws provided with semi-cylindrical hoop bodies in the middles to hoop the rear pipe plug, clamping the convex edge of the rear pipe plug through an annular groove arranged at the top end of an inner cavity of the hoop body and quickly pulling a collision sleeve movably arranged on a pull rod by hand to backwards collide with a stop block arranged at the rear end of the pull rod to generate tension and vibration.

The utility model provides a technical problem, the technical scheme who adopts is: a rear pipe plug pulling-out tool for a nuclear power condenser comprises a pull rod and is characterized in that a round rod is arranged at the upper part of the pull rod, external threads are arranged at the upper part of the round rod, a striking table is arranged at the upper end of a striking sleeve, a round hole III is arranged in the middle of the striking sleeve, and the striking sleeve is sleeved on the round rod through the round hole III; a stop block is arranged on the external thread, and a nut is arranged on the outer side of the stop block; a pull rod body is arranged at the lower part of the pull rod, a second groove is arranged at the lower end of the pull rod body, and two groups of circular holes II are symmetrically arranged on two walls of the second groove; the upper part of the clamping jaw is provided with a semicircular fluted disc, the middle of the fluted disc is provided with a round hole I, the lower end of the fluted disc is provided with a semicircular hoop body, the upper side of the inner wall of the hoop body is provided with a semicircular groove I, and the outer side of the lower end of the hoop body is provided with a convex edge I; the fluted discs of the two clamping jaws are movably arranged in the second groove on the pull rod body through the second round hole and the first round hole by using the round pin after being relatively occluded, and the hollow locking sleeve is sleeved on the pull rod body through the first protruding edge under the closed state of the two clamping jaws.

The utility model has the advantages that: the operation is simple and rapid, and no debris is generated.

Drawings

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

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

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

In the figure: 1-a claw; 1-1-hoop body; 1-2-groove one; 1-3-round hole I; 1-4-fluted disc; 1-5-convex edge one; 2-a pull rod; 2-1-a tie rod body; 2-2-round hole II; 2-3-groove two; 2-4-external threads; 2-5-round bar; 3-round pin; 4-locking sleeve; 5-sleeve collision; 5-1-round hole III; 5-2-bumping table; 6-a stop block; 7-a nut; 8-rear pipe plug; 8-1-convex edge two.

Detailed Description

In the embodiment, referring to the attached drawings, the rear pipe plug extracting tool for the nuclear power condenser comprises a pull rod 2, and is characterized in that a round rod 2-5 is arranged at the upper part of the pull rod 2, an external thread 2-4 is arranged at the upper part of the round rod 2-5, a collision table 5-2 is arranged at the upper end of a collision sleeve 5, a round hole III 5-1 is arranged in the middle of the collision sleeve 5, and the collision sleeve 5 is sleeved on the round rod 2-5 through the round hole III 5-1; a stop block 6 is arranged on the external thread 2-4, and a nut 7 is arranged on the outer side of the stop block 6; the lower part of the pull rod 2 is provided with a pull rod body 2-1, the lower end of the pull rod body 2-1 is provided with a groove II 2-3, and two groups of round holes II 2-2 are symmetrically arranged on two walls of the groove II 2; the upper part of the claw 1 is provided with a semicircular fluted disc 1-4, the middle of the fluted disc 1-4 is provided with a round hole I1-3, the lower end of the fluted disc 1-4 is provided with a semicircular hoop body 1-1, the upper side of the inner wall of the hoop body 1-1 is provided with a semicircular groove I1-2, and the outer side of the lower end of the hoop body 1-1 is provided with a convex edge I1-5; after the fluted discs 1-4 of the two claws 1 are relatively occluded, the claws 1 are movably arranged in the grooves 2-3 on the pull rod body 2-1 by round pins 3 through the round holes 2-2 and the round holes 1-3, and the hollow locking sleeve 4 is sleeved on the pull rod body 2-1 through the convex edges 1-5 in a closed state of the two claws 1.

The operation method of the utility model is as follows:

the locking sleeve 4 is pulled up along the pull rod body 2-1 to open the two clamping jaws 1, a cylindrical inner cavity formed by the two semi-cylindrical hoop bodies 1-1 is sleeved and clamped on the rear pipe plug 8, and a convex edge II 8-1 at the end part of the rear pipe plug 8 is clamped in the groove I1-2; pushing the locking sleeve 4 downwards to push the lower end of the locking sleeve 4 against the first convex edge 1-5; then the sleeve 5 is moved up along the round bar 2-5 quickly, the stopper 6 is impacted by the sleeve 5, and the rear pipe plug 8 can be taken out after repeated times.

Claims

1. A rear pipe plug pulling-out tool for a nuclear power condenser comprises a pull rod (2) and is characterized in that a round rod (2-5) is arranged at the upper part of the pull rod (2), external threads (2-4) are arranged at the upper part of the round rod (2-5), a hitting platform (5-2) is arranged at the upper end of a hitting sleeve (5), a round hole III (5-1) is arranged in the middle of the hitting sleeve (5), and the hitting sleeve (5) is sleeved on the round rod (2-5) through the round hole III (5-1); a stop block (6) is arranged on the external thread (2-4), and a nut (7) is arranged on the outer side of the stop block (6); a pull rod body (2-1) is arranged at the lower part of the pull rod (2), a second groove (2-3) is arranged at the lower end of the pull rod body (2-1), and two groups of round holes (2-2) are symmetrically arranged on two walls of the second groove (2-3); a semicircular fluted disc (1-4) is arranged at the upper part of the claw (1), a round hole I (1-3) is arranged in the middle of the fluted disc (1-4), a semicircular hoop body (1-1) is arranged at the lower end of the fluted disc (1-4), a semicircular groove I (1-2) is arranged on the upper side of the inner wall of the hoop body (1-1), and a convex edge I (1-5) is arranged on the outer side of the lower end of the hoop body (1-1); the fluted discs (1-4) of the two clamping jaws (1) are relatively meshed, then the clamping jaws (1) are movably arranged in the grooves (2-3) on the pull rod body (2-1) through the round holes (2-2) and the round holes (1-3) by using round pins (3), and the hollow locking sleeve (4) is sleeved on the pull rod body (2-1) through the convex edges (1-5) in a closed state of the two clamping jaws (1).