KR200433970Y1 - Steam Generator Slug Cleaner of Korean Nuclear Generator - Google Patents

Abstract

The present invention is a steam generator of the Korean nuclear generator used in the sludge cleaning to clean the sludge or foreign substances mixed with water sandwiched between the pipes and the steam generator used in the Korean nuclear generator to smooth the generation of steam. Slug cleaning device.

The present invention is the first operation lot groove (3), the second operation lot groove (3a), the third operation lot groove (3b) and the first axis guide groove (4), the second axis guide groove ( 4a), the third shaft guide groove 4b, the motor settling groove 5, the first nozzle body insertion groove 6, the second nozzle body insertion groove 6a, and the third nozzle body insertion groove 6b. And the first nozzle body operating groove 7, the second nozzle body operating groove 7a, the third nozzle body operating groove 7b, and the eccentric crank shaft insertion groove 8, 8a, 8b There is a high-pressure water inlet 35 formed in the lower body (A) to penetrate the first operation lot groove (3), the second operation lot groove (3a), the third operation lot groove (3b),

The lower body A has a first eccentric crank shaft 10a, a second eccentric crank shaft 10b, and a third eccentric crank shaft which are eccentrically processed on a rotating shaft 10 which is connected to the server motor 11 and operated. The first side in which the side first axis insertion hole 13, the side second axis insertion hole 13a, the side third axis insertion hole 13b, and the transverse insertion grooves 14, 14a and 14b are formed in 10c). Side 12 first axis insertion hole 13 and side second axis insertion hole 13a and side third axis insertion hole 13b of the lot 12, the second lot 12a, and the 3rd lot 12b are matched. In combination, the first shaft guide 15, the second shaft guide 15a, and the third shaft guide 15b are inserted simultaneously with the first lot 12, the second lot 12a, and the third lot 12b. Operating part (B) for placing the server motor (11) in the motor settling groove (5),

The first lot 12, the second lot 12a, and the first lot 12 inserted into the first operation lot groove 3, the second operation lot groove 3a, and the third operation lot 3b of the lower body A. The nozzle body C integrally with the operation piece 22 integrally with the coupling shaft 21 of the nozzle body 20 is coupled to the lateral insertion grooves 14, 14a and 14b of the three lot 12b. After the nozzle body (C) is inserted into the lower body (A), the side fixing cover (D) is coupled, and after the side fixing cover (D) is combined, the nozzle head (24) portion of the nozzle body (C) is The first mounting groove 41 and the first seating groove 42 of the side fixing cover D are exposed and coupled to form an integrated 30 ° angle lance G.

Lower Body Actuator Nozzle Body Side Fixing Cover Upper Body 30 ° Angle Lance 90 ° Angle Lance First Operation Lot Groove Second Operation Lot Groove Third Operation Lot Groove First Shaft Guide Groove Second Shaft Guide Groove Third Shaft Guide Groove Motor Settle groove First nozzle body insertion groove Second nozzle body insertion groove Third nozzle body insertion groove First nozzle body operation groove Second nozzle body operation groove Third nozzle body operation groove Eccentric crankshaft insertion groove Rotary shaft First eccentric crankshaft 2 Eccentric Crank Shaft 3 Eccentric Crank Shaft Server Motor First Lot Second Lot Third Lot Side First Axis Insertion Hole Side Second Axis Insertion Hole Side Third Axis Insertion Hole Lateral Insertion Groove First Axis Guide Second Axis Guide 3-Axis Guide Nozzle Body Coupling Shaft Operating Piece High Pressure Passage Nozzle Head Nozzle Coupling Screw Sealed Seal Insertion Hole High Pressure Water Inlet Hole High Pressure Water Inlet Hole 1st Set-up 1st Set-up Slot 1st Nozzle Body Insertion Space 2nd Nozzle Body Insertion Space Eccentric Crank Shaft Insert Groove High Pressure Inflow passage Air passage Server motor Rotating shaft First eccentric crank shaft Second eccentric crank shaft Third eccentric crank shaft First operating hole Second operating hole Third operating hole First guide hole Second guide hole Third guide hole First shaft guide 2nd Axis Guide 3rd Axis Guide Camera Cable Path Surveillance Camera Exposure Hole Camera Rough Fixture Insert Hole

Description

Steam generator slug cleaning device of Korean nuclear power generator

1 is a perspective view illustrating a state of use of the present invention

2 is a partially enlarged perspective view illustrating a state of use of the present invention

3 is a perspective view of a 30 ° angle lance of the present invention

4 is a partially cutaway perspective view of the 30 ° angle lance of the present invention

5 is an exploded perspective view of a 30 ° angle lance of the present invention

6 is an exploded perspective view of a 30 ° angular lance in the opposite direction of FIG.

Figure 7 is a partially cutaway perspective view of the 30 ° angle lance of the present invention

8 is a partially cutaway perspective view of the nozzle head body of the present invention

9 is a front cutaway view of a portion of the 30 ° angle lance of the present invention.

10 is a partial front sectional view showing a nozzle body of a 30 ° angle lance of the present invention.

Figure 11 is a perspective view of the lance separation of another embodiment of the present invention

12 is a partial cutaway perspective view of a lance at an angle of 90 ° according to another embodiment of the present invention

Figure 13 is a partial cutaway perspective view of the lance side of an angle of another embodiment of the present invention

14 is an exploded perspective view of a lance nozzle head of an angle of 90 ° according to another embodiment of the present invention;

Explanation of Signs of Major Parts of Drawings

A, A1: lower body B, B1: operating part

C, C1: nozzle body D, D1: side fixing cover

E, E1: Upper body G: 30 ° angle lance

G1: 90 ° Angle Lance

3, 100: 1st operation lot groove 3a, 100a: 2nd operation lot groove

3b, 100b: 3rd operation lot groove 4, 101: 1st axis guide groove

4a, 101a: second shaft guide groove 4b, 101b: third shaft guide groove

5, 102: motor settling groove 6: first nozzle body insertion groove

6a: 2nd nozzle body insertion groove 6b: 3rd nozzle body insertion groove

7: First nozzle body operating groove 7a: Second nozzle body operating groove

7b: Third nozzle body operating groove 8, 8a, 8b, 104: Eccentric crankshaft insertion groove

10: rotation shaft 10a: first eccentric crank shaft

10b: second eccentric crankshaft 10c: third eccentric crankshaft

11: server motor 12, 120: first lot

12a, 120a: second lot 12b, 120b: third lot

13: Side 1st axis insertion hole 13a: Side 2nd axis insertion hole

13b: Side third insertion hole 14, 14a, 14b: Lateral insertion groove

15: first shaft guide 15a: second shaft guide

15b: 3rd axis guide 20: nozzle body

21: Coupling shaft 22: Working piece

23: high pressure water passage 24: nozzle head

25: nozzle coupling screw hole 26, 27: sealing thread insertion hole

28: high pressure water inlet hole 29: high pressure water inlet

41: first seating groove 42: first seating groove

103: first nozzle body insertion space 103a: second nozzle body insertion space

104: eccentric crank shaft insertion groove 105: high pressure water inlet

106: air passage 110: server motor

111: rotating shaft 111a: first eccentric crank shaft

111b: second eccentric crankshaft 111c: third eccentric crankshaft

121: first operating hole 121a: second operating hole

121b: third operating hole 122: first guide hole

122a: second guide hole 122b: third guide hole

130: first axis guide 130a: second axis guide

130b: 3rd axis guide 140: camera cable path

141: surveillance camera exposure 142: camera rough stand

143: insertion hole

The present invention is a steam generator of the Korean nuclear generator used in the sludge cleaning to clean the sludge or foreign substances mixed with water sandwiched between the pipes and the steam generator used in the Korean nuclear generator to smooth the generation of steam. Slug cleaning device.

Nuclear power plants use uranium as a raw material for nuclear power.

Uranium has 235 and 238 atomic weights, of which enormous energy is generated when uranium 235 is fissile.

This can be understood through Einstein's mass energy equivalence principle, where uranium 235 breaks down, causing a slight decrease in mass and the amount of energy that corresponds to the reduced mass.

By converting mass into energy in this way, very much energy can be obtained from extremely small amounts of matter.

Thus, if uranium 235 continues to produce nuclear fission, a lot of heat can be continually obtained, and the heat generated can be used to produce steam and obtain electricity.

Power plants that produce electricity are called nuclear power plants.

These nuclear power plants are mainly composed of 1. reactor 2. pressurizer 3. steam generator 4. coolant pump 5. main water pump 6. low-pressure turbine 7. high-pressure turbine 8. multiple generators 9. generator 10. Reactor.

As described above, the essential facility for producing electricity in the reactor is a steam generator, and the tube tube of the steam generator of the reactor, which has been installed by the introduction of technology, has a wide interval of arrangement so that the nozzle head coupled to the nozzle body is determined at the time of manufacture. It is being washed and cleaned at a fixed angle.

However, the steam generator used in the Korean nuclear power generator developed independently is installed at intervals of about 2.2 mm in the arrangement of the tube tubes installed in the steam generator, and the gap angle in the arrangement of the front, rear, left and right of the tube. Are arranged at 30 ° and 90 °.

In this steam generator, when hot water passes through the tube tube, water is introduced into the tube tube to warm the tube tube, and steam is generated inside the tube tube. By operating the turbine to produce electricity, the steam generator supplies water seamlessly.

In the process of supplying water in this way, if this substance mixed with water collects on the floor or gets stuck or stuck in the space between the tube tubes, the tube tube may be corroded and malfunction when left unused. If the phenomenon occurs between the tube tube is blocked for a long time, there is a problem that the amount of water that comes in direct contact with the tube tube is less steam generation power and the productivity of electricity falls with this.

In order to solve such a problem, the tube tube of the steam generator is cleaned in a state in which power generation is stopped regularly once a year.

In the tube tube cleaning operation, a conventional method is used to clean the tube by inserting a lance with a rail device for cleaning between tube tubes, but the conventional lance has a nozzle fixed to the body, When spraying water at high pressure while moving, most of them are sprayed, so it is impossible to clean the sludge or sediment of the tube tube and the washing power is also low.

In such a conventional washing apparatus, a steam generator of a nuclear reactor generator manufactured by introducing technology from abroad is used in a steam generator having a wide tube tube, and a steam generator used in a Korean light water reactor having a narrow tube tube arrangement of a steam generator. It is difficult to use a steam generator with a narrow tube tube arrangement, which is handled manually by an operator.

The present invention was developed to solve such a problem, the angle to be cleaned through the camera coupled to the front of the lance while advancing between the tube tube by the control from the outside coupled to the rail tool made between the tube tube of the steam generator In accordance with the accompanying drawings to clean the tube after adjusting the angle by operating the nozzle head body according to this in detail as follows.

1 is a perspective view illustrating a state of use of the present invention as a cross-sectional view of the top of the steam generator (K) rail tool (S) used to insert the 30 ° angle lance (G) and 90 ° angle lance (G1) of the present invention ) Is fixed between the tube tubes 80 of the steam generator (K).

2 is a partially enlarged cross-sectional perspective view illustrating an example of a use state of the present invention, in which the front tube tube 80 is removed to show a 30 ° angle lance G and a 90 ° angle lance G1.

The present invention combines the operation unit (B) and the nozzle body (C) to the lower body (A) and fixed the side fixing cover (D) to combine the upper body (E) to the upper end of the lower body (A) to integrate It is a 30 ° angle lance (G).

The present invention as described above is the first operation lot groove (3), the second operation lot groove (3a), the third operation lot groove (3b) and the first shaft guide groove (4), the second operating up and down Shaft guide groove 4a, third shaft guide groove 4b, motor settling groove 5, first nozzle body insertion groove 6, second nozzle body insertion groove 6a, third nozzle body insertion Groove 6b, first nozzle body operating groove 7, second nozzle body operating groove 7a, third nozzle body operating groove 7b, and eccentric crankshaft insertion groove 8, 8a, 8b. And a lower body (A) which penetrates the high-pressure water inlet 35 and forms the first operation lot groove 3, the second operation lot groove 3a, and the third operation lot groove 3b. ,

The lower body A has a first eccentric crank shaft 10a, a second eccentric crank shaft 10b, and a third eccentric crank shaft which are eccentrically processed on a rotating shaft 10 which is connected to the server motor 11 and operated. The first side in which the side first axis insertion hole 13, the side second axis insertion hole 13a, the side third axis insertion hole 13b, and the transverse insertion grooves 14, 14a and 14b are formed in 10c). Side 12 first axis insertion hole 13 and side second axis insertion hole 13a and side third axis insertion hole 13b of the lot 12, the second lot 12a, and the 3rd lot 12b are matched. In combination, the first shaft guide 15, the second shaft guide 15a, and the third shaft guide 15b are inserted simultaneously with the first lot 12, the second lot 12a, and the third lot 12b. An operation part B for placing the server motor 11 in the motor settling groove 5,

The first lot 12, the second lot 12a, and the first lot 12 inserted into the first operation lot groove 3, the second operation lot groove 3a, and the third operation lot 3b of the lower body A. The nozzle body C is coupled to the lateral insertion grooves 14, 14a and 14b of the three lots 12b by integrally operating the working piece 22 integrally with the coupling shaft 21 of the nozzle body 20. do.

The nozzle body C forms a nozzle coupling screw hole 25 for mounting two nozzle heads 24 to the nozzle body 20, and the nozzle coupling screw hole 25 is formed on the coupling shaft 21. It penetrated to be connected to the high-pressure water passage 23, the coupling shaft 21 is integrated into the operating piece 22, one side of the coupling shaft 21 is sealed in both sides of the high-pressure water inlet hole 28 made in the center The insertion holes 26 and 27 are made, and the high pressure water inlet 28 is made by drilling the high pressure water inlet 29.

The inlet of the high-pressure water passage 23 of the nozzle body C is completely closed after processing into the nozzle body C to prevent the inlet.

After the nozzle body C is inserted into the lower body A, the side fixing cover D is coupled, and after the side fixing cover D is coupled, the nozzle head 24 of the nozzle body C is sided. It is coupled to be exposed to the first seating groove 41 and the first seating groove 42 of the fixed cover (D).

In the combined state as described above, the side fixing cover (D) made of the first seating groove 30, the second seating groove 31 is integrally screwed to the side of the lower body (A), the lower body (A) Surveillance camera settling groove 51 and the cable clip settling groove 52 to be inserted into the surveillance camera fixing clip 60 and the cable clip 61 integrally at the top of the guide gear 50 on one side of the In the upper end of the camera cable passage 36 is made to pass through the surveillance camera exposure hole 37 at the bottom of the front recess 51, the front side of the camera cable passage 36 to create an air passage 38 in the lower side The nozzle body (C) integrally coupled to the upper body (E) penetrated to be located at the lower end of the surveillance camera exposure hole 37 of the upper body (E) and the lower body (A) in the state of facing forward A 30 ° angle lance (G) with a 30 ° angle maintained.

In the 30 ° angle lance (G) as described above, the nozzle body (C) is formed in two ways, the position on the right side and the position on the left side, each of which has the same structure.

The lower body (A) is the first operation lot groove (3), the second operation lot groove (3a), the third operation lot (3b) and the first shaft guide groove (4), The two-axis guide groove (4a), the third shaft guide groove (4b) is made and the motor settling groove (5) is made on one side of the first operation lot groove (3), the second operation lot groove (3a), the third operation The first nozzle body insertion groove 6, the second nozzle body insertion groove 6a, the third nozzle body insertion groove 6b are made to penetrate the lot 3b, and the first nozzle body insertion groove 6 is formed. Below the second nozzle body insertion groove 6a and the third nozzle body insertion groove 6b, the first nozzle body operating groove 7, the second nozzle body operating groove 7a, and the third nozzle body operating groove 7b are provided. ) And an eccentric crankshaft insertion groove (8) (8a) (8b) were formed and a high pressure water inflow passage (35) was formed inside.

The operating part B placed on the lower body A is integral with the server motor 11 and the rotating shaft 10, and the rotating shaft 10 is spaced a little from the first operating lot groove in the lower body A. 3), the first eccentric crankshaft 10a, the second eccentric crankshaft 10b, and the third eccentric crankshaft at the same points as the positions of the second actuated lot groove 3a and the third actuated lot 3b, respectively. 10c) to make the rotary shaft 10 is formed.

After inserting the third axial insertion hole 13b of the side of the third lot 12b into the third eccentric crankshaft 10c of the rotary shaft 10, the third axial guide 15b is inserted therein, and then the second eccentric crankshaft. After inserting the second shaft insertion hole 13a of the side of the second lot 12a into the 10b, the second shaft guide 15a is inserted into the first eccentric crankshaft 10a of the first lot 12. After inserting the side first shaft insertion hole 13, the first shaft guide 15 is inserted, and then the first operation lot groove 3 of the lower body A, the second operation lot groove 3a, and the third operation Insert into the lot (3b), the first shaft guide groove (4), the second shaft guide groove (4a), the third shaft guide groove (4b).

The high pressure water inflow path 35 formed below the motor seat groove 5 of the lower body A connects a high pressure hose (not shown) to introduce the high pressure water when the tube tube 65 is washed. The high pressure water inflow path 35 passes through the first operation lot groove 3, the second operation lot groove 3a, and the third operation lot 3b, and passes through the high pressure of the nozzle body C. It is connected to the water inlet hole 28 and the high pressure water is supplied to the nozzle head 24 through the high pressure water inlet 23.

And, the upper body (E) coupled at the upper end of the lower body (A) is fixed to the surveillance camera (not shown) at the lower end of the surveillance camera fixing clip (60) to the surveillance camera settle groove 51 , The cable clip 61 is coupled to the cable clip settled groove 52 to fix the surveillance camera cable passing through the cable passage (36).

When the combined assembly work is completed as described above, all the holes made for the side screw holes or processing are inserted into the waterproof seal and completely sealed.

The structure of the 90 ° angle lance G1 of another embodiment in the present invention as described above is as follows.

The present invention combines the operation unit (B1) and the nozzle body (C1) to the lower body (A1) and fixed the side fixing cover (D1) to combine the upper body (E1) to the upper end of the lower body (A1) to integrate 90 ° angle lance (G1).

The invention of another embodiment of the present invention as described above, the left and right first operation lot groove 100, the second operation lot groove (100a), the third operation lot groove (100b) and the first shaft guide groove 101, Second shaft guide groove 101a, third shaft guide groove 101b, motor settling groove 102, first nozzle body insertion space 103, second nozzle body insertion space 103a, and eccentric crank A lower body A1 having an shaft insertion groove 104 formed therein and having an air passage 106 and a high pressure water inflow passage 105 therein;

The lower body A1 has a first eccentric crank shaft 111a, a second eccentric crank shaft 111b, and a third eccentric crank shaft 111c which are eccentrically processed on a rotating shaft 111 that is connected to the server motor 110 and operated. In the upper side and the lower side, respectively, the first operating hole 121 and the first guide hole 122, the second operating hole 121a and the second guide hole 122a, the third operating hole 121b and the third guide, respectively. The first lot 120, the second lot 120a, and the third lot 120b having the holes 122b are formed in the first operation lot groove 100 of the lower body A, and the second operation lot groove 100a. Inserted into the third operation lot groove (100b),

Between the first eccentric crank shaft (111a), the second eccentric crank shaft (111b), the third eccentric crank shaft (111c) of the rotary shaft 111, the first shaft guide 130, the second shaft guide (130a), An operation part B1 having the server motor 110 mounted on one side by inserting the third shaft guide 130b;

The upper body E1 is coupled to the upper end of the lower body A1 and forms the camera cable passage 140 and the surveillance camera exposure hole 141 and makes the insertion hole 143 that couples the camera roughness 142,

The side fixing cover D1 is fixed after inserting the nozzle body C1 into the high pressure water inflow path 105 of the first nozzle body insertion space 103 and the second nozzle body insertion space 103a of the lower body A1. It is done.

When inserting the nozzle body (C1) into the high-pressure water inlet 105, the nozzle body (C1) for coupling by inserting the bushing 140 to one side coupling shaft 150 is the upper body (E1) and the lower body (A1) It is a 90 ° angle lance (G1) in a state of maintaining a 90 ° angle toward the front in a state in which the integrally coupled.

Also in the 90 degree angle lance G1, the position of the nozzle body C1 is made to the right side and left side, and the structure is the same respectively.

The nozzle body C1 of the 90 ° angle lance G1 of another embodiment as described above has the same structure and the same function as the nozzle body C1 used in the 30 ° angle lance G, and the nozzle body ( C1) forms a nozzle coupling screw hole 154 for mounting two nozzle heads 153 to the nozzle body 152, and the nozzle coupling screw hole 154 is a high-pressure water passage made of the coupling shaft 150 ( 155 and penetrated to connect, the coupling shaft 150, the operation piece 151 integrally, and one side of the coupling shaft 150, the high-pressure water inlet hole 156 made in the center of both sides of the sealed chamber insertion hole (157) ) 158, the high-pressure water inlet hole 156 is a high-pressure water inlet hole 159 is to be combined by fitting the bushings 145 to each side coupling shaft 150, respectively.

A first lot 120, a second lot 120a, a third in the first operation lot groove 100, the second operation lot groove 100a, the third operation lot groove 100b of the lower body A1. The lot 120b is inserted, and the first lot 120, the second lot 120a, and the third lot 120b are the first eccentric crank shaft 111a and the second eccentric crank shaft when the rotating shaft 111 is rotated. (111b), the first guide hole formed at the bottom of the first lot 120, the second lot (120a), the third lot (120b) while repeating the left and right by the third eccentric crank shaft (111c) 122, the nozzle body C1 is moved by the operation piece 151 inserted into the second guide hole 122a and the third guide hole 122b.

The first eccentric crank shaft 111a, the second eccentric crank shaft 111b, and the third eccentric crank shaft 111c of the rotation shaft 111 are inserted into the lower body A1, and the first lot 120 and the second. It is inserted in conjunction with the first operating hole 121 and the second operating hole 121a, the third operating hole 121b of the lot (120a), the third lot (120b).

As such, the upper body E1 is coupled to the upper end by placing the operating part B1 in a state where the first lot 120, the second lot 120a, and the third lot 120b are inserted into the lower body A1. It is.

Referring to the state of use of the present invention as described in detail as follows.

First, as shown in FIG. 1, the 30 ° angle lance G and the 90 ° angle lance G1 of the present invention are sequentially coupled to the rail tool S installed between the tube tube 90 of the steam generator K. Leave it as.

At this time, the 30 ° angle lance (G), 90 ° angle lance (G1) is installed symmetrically to the lance consisting of the right and left parts.

The symmetrical installation is for washing both sides of the tube tube 80 at the same time.

In this state, if you want to clean the tube tube 80 of the steam generator (K) when operating the rail tool (S) 30 ° angle lance (G), 90 ° angle lance (G1) is the gear of the rail tool (S) If the guide gear 50 formed on the side of the 30 ° angle lance (G) is caught and proceeds forward, the 30 ° angle lance (G) and 90 ° angle lance (G1) moves forward along the rail .

The 90 ° angle lance G1 moves in the same manner by fixing at intervals with the 30 ° angle lance G.

At this time, the 30 ° angle lance (G), the surveillance camera coupled to the front of the 90 ° angle lance (G1) proceeds while shining between the tube tube (80) of the steam generator (K), the cleaning work proceeds first 30 ° The operation of the angular lance G will be described.

A 30 ° angle lance (G) proceeds to the tube tube 80 of the steam generator (K) and at the same time supplies the washing water to the high pressure water inlet (35) through a high pressure hose tube (not shown).

The high pressure water flowing into the high pressure water inflow path 35 of the lower body A is introduced into the high pressure water inlet hole 28 on one side of the coupling shaft 21 of the nozzle body C while flowing inward. It is supplied to the nozzle head 24 in the high-pressure water passage 23 formed in the coupling shaft 21 is introduced into the ball (29).

When the high pressure water is continuously supplied as described above, the high pressure water is injected through the nozzle head 24 while moving forward while washing the tube tube 80.

At this time, the movement of the nozzle body (C) in the 30 ° angle lance (G) that proceeds forward through the surveillance camera (not shown in the figure) exposed to the surveillance camera exposure hole 37 in front of the upper body (E). It can be checked through the screen from the outside.

The high-pressure water sprayed from the nozzle head 24 hits the tube tube 80 while proceeding while checking the cleaning process through the surveillance camera fixed to the surveillance camera exposure hole 37 as described above. When the vision is blurred, air is supplied to the air passage 38 on the rear side of the upper body (E) to blow water through the air supply hole in the upper part of the surveillance camera exposure hole 37 so that the water droplets falling on the lens of the surveillance camera are removed. Blow and make it possible to see the inside of the tube tube 80 clearly.

In this way, while continuously moving forward while supplying high-pressure water continuously and evenly washing the entire tube tube 80 is moved while moving the nozzle body (C) up and down.

In order to move the nozzle body C as described above, when the server motor 11 mounted in the motor settling groove 5 of the lower body A is operated, the rotary shaft 10 coupled to the server motor 11 rotates. At the same time, the first eccentric crankshaft 10a, the second eccentric crankshaft 10b, and the third eccentric crankshaft 10c, which are integrally processed on the rotary shaft 10, are rotated while the first eccentric crankshaft 10a, the second The first lot 12, the second lot 12a, and the third lot 12b coupled to the eccentric crank shaft 10b and the third eccentric crank shaft 10c are the first operation lot grooves of the lower body A. (3) It operates up and down in the second operation lot groove (3a), the third operation lot groove (3b).

As described above, when the first lot 12, the second lot 12a, and the third lot 12b are operated, the side surfaces of the first lot 12, the second lot 12a, and the third lot 12b are used. The first eccentric crankshaft 10a, the second eccentric crankshaft 10b, and the third eccentric crank in the uniaxial insertion hole 13, side second axis insertion hole 13a, and side third axis insertion hole 13b. Nozzle inserted into the transverse insertion grooves 14, 14a and 14b of the first lot 12, the second lot 12a, and the third lot 12b as the shaft 10c moves and is operated up and down. By the operation piece 22 behind the coupling shaft 21 of the sieve C, the nozzle body C repeatedly moves by a predetermined angle to move forward and downward.

Working as above is the movement of the 30 ° angle lance G.

As described above, the 30 ° angle lance G and the 90 ° angle lance G1 coupled to the 30 ° angle lance G at regular intervals will be described.

The 90 ° angle lance G1 is coupled to the same line and moves simultaneously when the 30 ° angle lance G is moved forward.

In this way, the high-pressure water flows through the high-pressure water inlet 105 at the rear of the 90-degree angle lance G1 that proceeds with the 30 ° angle lance G. The high pressure water flows through the high pressure water passage 155 formed in one coupling shaft 150 of the nozzle body C1 coupled to the nozzle body.

The high pressure water flowing into the high pressure water passage 155 is a nozzle head 153 coupled to the nozzle coupling screw hole 154 of the nozzle body C1 in which a 90 ° angle lance G1 is coupled at an angle of 90 ° in the advancing direction. Is injected into the tube tube (80).

As such, the high pressure water flows through the monitoring camera exposure hole 141 coupled to the surveillance camera exposure hole 141 at the position of the tip of the nozzle body C1 in front of the upper body E1. Through the high pressure water can normally know the progress of whether the tube 80 is washed.

At this time, the fog of the high pressure water through the nozzle head 153 hits the tube tube 80, the field of view of the surveillance camera is blurred by the fog phenomenon to prevent the progress of the air passage 106 to prevent the air The air is injected into the exposure hole formed on the top of the surveillance camera exposure hole 141 by zooming and the cleaning of the lens of the surveillance camera can be easily identified by zooming.

When the 90 ° angle lance (G1) proceeds in this working state and the server motor 110 rotates and the rotary shaft 111 rotates, the first eccentric crank shaft (111a), the second eccentrically processed therewith The crankshaft 111b and the third eccentric crankshaft 111c rotate.

A first shaft guide inserted into the first operation lot groove 100, the second operation lot groove 100a, and the third operation lot groove 100b of the lower body A1 when the rotary shaft 111 rotates ( 130, the second shaft guide 130a and the third shaft guide 130b support and rotate the rotation shaft 111.

When the rotating shaft 111 rotates as described above, the first lot 120 and the second lot inserted into the first eccentric crank shaft 111a, the second eccentric crank shaft 111b, and the third eccentric crank shaft 111c are operated. 120a, the third lot 120b is repeatedly moved left and right.

As described above, the first lot 120, the second lot 120a, and the third lot 120b repeatedly move to the left and the right to have the first eccentric crank shaft 111a, the second eccentric crank shaft 111b, and the third. First operating hole 121, second operating hole 121a, and third operating hole of the first lot 120, the second lot 120a, and the third lot 120b inserted into the eccentric crank shaft 111c. When the first eccentric crank shaft 111a, the second eccentric crank shaft 111b, and the third eccentric crank shaft 111c are moved at 121b, the first lot 120, the second lot 120a, and the third lot The movement is moved up and down through the operation piece 151 of the nozzle body C1 inserted into the first guide hole 122, the second guide hole 122a, and the third guide hole 122b formed on the bottom surface. It moves and washes.

The present invention is divided into the lance used in the steam generator cleaning device 30 ° angle lance (G), 90 ° angle lance (G1) is the nozzle body (C) in the straight state that the lance proceeds during the cleaning operation The combined angle of (C1) is combined with a 30 ° angle and 90 ° to indicate the angle at which high pressure water is injected.

The present invention has been made so that the tube tube installation state of the steam generator is installed between the tube tube and the tube tube at about 2.2 mm intervals in the facilities of the Korean nuclear power plant, so the tube tube is too dense. In cleaning sludge, the lance formed at an angle of 30 ° and 90 ° has been developed so that the tube tube can be uniformly washed from the top to the bottom by spraying high pressure water as the nozzle body moves up and down.

Claims (9)

30 ° angle integrated by combining the operating part (B) and the nozzle body (C) to the lower body (A) and fixing the side fixing cover (D) to combine the upper body (E) on the upper end of the lower body (A) Steam generator slug cleaning device of the Korean nuclear generator, characterized in that the lance (G). First and second operating lot grooves (3), the second operation lot groove (3a), the third operation lot groove (3b) and the first axis guide groove (4), the second axis guide groove (4a), Third shaft guide groove 4b, motor settling groove 5, first nozzle body insertion groove 6, second nozzle body insertion groove 6a, third nozzle body insertion groove 6b, and 1 nozzle body operating groove (7), second nozzle body operating groove (7a), third nozzle body operating groove (7b), and eccentric crankshaft insertion groove (8) (8a) (8b), and the inside of the high pressure water A lower body A formed to penetrate the first operation lot groove 3, the second operation lot groove 3a, and the third operation lot groove 3b to form an inflow path 35; The lower body A has a first eccentric crank shaft 10a, a second eccentric crank shaft 10b, and a third eccentric crank shaft which are eccentrically processed on a rotating shaft 10 which is connected to the server motor 11 and operated. The first side in which the side first axis insertion hole 13, the side second axis insertion hole 13a, the side third axis insertion hole 13b, and the transverse insertion grooves 14, 14a and 14b are formed in 10c). Side 12 first axis insertion hole 13 and side second axis insertion hole 13a and side third axis insertion hole 13b of the lot 12, the second lot 12a, and the 3rd lot 12b are matched. In combination, the first shaft guide 15, the second shaft guide 15a, and the third shaft guide 15b are inserted simultaneously with the first lot 12, the second lot 12a, and the third lot 12b. An operation part B for placing the server motor 11 in the motor settling groove 5, The first lot 12, the second lot 12a, and the first lot 12 inserted into the first operation lot groove 3, the second operation lot groove 3a, and the third operation lot 3b of the lower body A. The nozzle body C integrally with the operation piece 22 integrally with the coupling shaft 21 of the nozzle body 20 is coupled to the lateral insertion grooves 14, 14a and 14b of the three lot 12b. After the nozzle body (C) is inserted into the lower body (A), the side fixing cover (D) is coupled, and after the side fixing cover (D) is combined, the nozzle head (24) portion of the nozzle body (C) is Steam generator slug cleaning device of the Korean nuclear power generator, characterized in that the 30 ° angle lance (G) is integrally coupled by being exposed to the first seating groove 41 and the first seating groove 42 of the side fixing cover (D). . The nozzle body (C) according to claim 1, wherein the nozzle body (C) forms a nozzle coupling screw hole (25) for mounting two nozzle heads (24) to the nozzle body (20), and the nozzle coupling screw hole (25) is a coupling shaft. It penetrated to be connected to the high-pressure water passage 23 made in (21), the coupling shaft 21 integrally with the operation piece 22, one side of the coupling shaft 21, the high-pressure water inlet hole 28 made in the center ) Steam generator slug washing apparatus of the Korean-type nuclear power generator, characterized in that the sealing chamber insertion hole (26) (27) is made on both sides, and the high pressure water inlet hole (28) is drilled through the high pressure water inlet hole (29). The steam generator slug cleaning device according to claim 1, wherein the direction of the nozzle body (C) in the 30 ° angle lance (G) is formed at a 30 ° angle position on the right side. The steam generator slug cleaning apparatus according to claim 1, wherein the direction of the nozzle body (C) in the 30 ° angle lance (G) is formed at a 30 ° angle position on the left side. 90 ° angle of coupling the operating part B1 and the nozzle body C1 to the lower body A1 and fixing the side fixing cover D1 to couple the upper body E1 to the upper end of the lower body A1. Steam generator slug cleaning device of the Korean nuclear generator, characterized in that the lance (G1). The method of claim 6, wherein the first operation lot groove 100, the second operation lot groove (100a), the third operation lot groove (100b) and the first axis guide groove 101, the second axis guide groove (101a) The third shaft guide groove 101b, the motor settling groove 102, the first nozzle body insertion space 103, the second nozzle body insertion space 103a, and the eccentric crankshaft insertion groove 104 Inside the lower body (A1) and the air passage 106 and the high-pressure water inlet 105, The lower body A1 has a first eccentric crank shaft 111a, a second eccentric crank shaft 111b, and a third eccentric crank shaft 111c which are eccentrically processed on a rotating shaft 111 that is connected to the server motor 110 and operated. In the upper side and the lower side, respectively, the first operating hole 121 and the first guide hole 122, the second operating hole 121a and the second guide hole 122a, the third operating hole 121b and the third guide, respectively. The first lot 120, the second lot 120a, and the third lot 120b having the holes 122b formed therein are the first operation lot grooves 100 and the second operation lot grooves 100a of the lower body A1. And insert into the third operation lot groove (100b), Between the first eccentric crank shaft (111a), the second eccentric crank shaft (111b), the third eccentric crank shaft (111c) of the rotary shaft 111, the first shaft guide 130, the second shaft guide (130a), An operation part B1 having the server motor 110 mounted on one side by inserting the third shaft guide 130b; The upper body E1 is coupled to the upper end of the lower body A1 and forms the camera cable passage 140 and the surveillance camera exposure hole 141 and makes the insertion hole 143 that couples the camera roughness 142, The side fixing cover D1 is fixed after inserting the nozzle body C1 into the high pressure water inflow path 105 of the first nozzle body insertion space 103 and the second nozzle body insertion space 103a of the lower body A1. Steam generator slug cleaning device of the Korean nuclear generator characterized in that the 90 ° angle lance (G1). The steam generator slug cleaning apparatus according to claim 6, wherein the direction of the nozzle body (C1) in the 90 ° angle lance (G1) is formed at a 90 ° angle position on the right side. The steam generator slug washing apparatus of claim 6, wherein the direction of the nozzle body C1 in the 90 ° angle lance G1 is formed at a 90 ° angle position on the left side.

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