CN216680983U

CN216680983U - Special frock of steam turbine condenser baffle installation

Info

Publication number: CN216680983U
Application number: CN202123138025.2U
Authority: CN
Inventors: 孙昊; 朱珠凤; 马琳; 杜新华; 陈剑豪; 戚云丰
Original assignee: Hangzhou Guoneng Steam Turbine Engineering Co Ltd
Current assignee: Hangzhou Guoneng Steam Turbine Engineering Co Ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-06-07
Anticipated expiration: 2031-12-14

Abstract

The utility model relates to a special tool for installing a steam turbine condenser. The purpose is to provide an installation specialized tool of condenser baffle to safe swiftly accomplish baffle installation work, and guarantee that the baffle mounted position is correct, can also practice thrift the manufacturing time in a large number. The technical scheme is as follows: the utility model provides a special frock of steam turbine condenser baffle installation which characterized in that: the special tool comprises a main beam, sliding seats, fixed pulleys and two pulling ropes, wherein the main beam is fixed at two ends of a condenser cylinder through two pairs of C-shaped clamps, the length of the main beam penetrates through two end faces of the condenser cylinder, the sliding seats are slidably positioned on the main beam and used for hanging a partition plate, the fixed pulleys are installed at two ends of the main beam, one end of each fixed pulley is connected with the corresponding sliding seat, and the other end of each fixed pulley bypasses the corresponding two fixed pulleys to achieve pulling of the corresponding sliding seat.

Description

Special frock of steam turbine condenser baffle installation

Technical Field

The utility model relates to a special tool for installing a steam turbine condenser.

Background

In addition to the sealed connection of the two ends to the tube sheets, all cooling tubes of a steam turbine condenser must also pass through a series of substantially uniformly arranged support baffles. These support baffles are usually fixed in some way (mostly in the form of welding) to the condenser shell. The cooling tube bundle composed of the cooling tubes of the whole condenser is divided into a plurality of partitions in the length direction. For a round condenser, the cylinder body is a long cylinder formed by connecting a plurality of cylinders; the shape of the middle clapboard is correspondingly circular. In order to ensure that the partition plate can effectively bear the external pressure on the condenser barrel, the partition plate is usually in welded connection with the barrel, and the gap between the partition plate and the barrel is required to be as small as possible, so that the uniform welding amount and the stable welding quality can be ensured. Because the condenser barrel is an integral body, the partition plates need to directly lean against the traveling crane and are sequentially hoisted into the condenser barrel one by one from two ends or one end of the condenser barrel; not only the hoisting step is troublesome, the assembly difficulty is larger, but also the construction time is long.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the background technology and provide a special tool for installing a condenser separator, so that the installation work of the separator can be safely and quickly completed, the correct installation position of the separator is ensured, and a large amount of manufacturing time can be saved.

The technical scheme provided by the utility model is as follows:

the utility model provides a special frock of steam turbine condenser baffle installation which characterized in that: the special tool comprises a main beam, sliding seats, fixed pulleys and two pulling ropes, wherein the main beam is fixed at two ends of a condenser cylinder through two pairs of C-shaped clamps, the length of the main beam penetrates through two end faces of the condenser cylinder, the sliding seats are slidably positioned on the main beam and used for hanging a partition plate, the fixed pulleys are installed at two ends of the main beam, one end of each fixed pulley is connected with the corresponding sliding seat, and the other end of each fixed pulley bypasses the corresponding two fixed pulleys to achieve pulling of the corresponding sliding seat.

Each pair of C-shaped clamps comprises two C-shaped clamping frames which are separated by a distance and are connected with the clamps into a whole through a connecting plate;

the C-shaped clamping frame is provided with a hole for inserting the connecting plate and a puller bolt for locking the connecting plate; the two ends of the clamp are hinged to the C-shaped clamping frame respectively, the middle of the clamp is provided with an inserting structure matched with the main beam, and a tightening bolt acting on the main beam is arranged in the middle of the clamp.

The main beam is an I-shaped beam; the inserting and embedding structure is a C-shaped frame matched with the lower part of the I-shaped beam in an inserting and embedding manner.

The sliding seat comprises a U-shaped frame, two horizontal shafts and a hook, wherein the two horizontal shafts are provided with rollers, one ends of the two horizontal shafts are fixedly connected with the vertical rod of the U-shaped frame, and the hook is fixed at the bottom end of the U-shaped frame and used for hooking the partition plate; the distance between two vertical rods of the U-shaped frame is larger than the width of the I-shaped beam, and one ends of two horizontal shafts are respectively fixed on the opposite side surfaces of the two vertical rods, so that the rollers can be slidably hooked on the sliding rail of the I-shaped beam.

The pulley is a bearing.

The main beam is provided with scales arranged along the length direction.

The utility model has the beneficial effects that: by adopting the utility model, the partition board installation work can be safely and quickly finished, the partition board installation position is ensured to be correct, the installation work efficiency can be obviously improved, and a large amount of manufacturing time is saved. And after the tool is used, extra crane hoisting operation is not needed in the installation process of the partition plate, so that the installation cost is obviously reduced.

Drawings

Fig. 1 is a schematic view of the working position of the present invention.

Fig. 2 is a schematic sectional structure view of a-a in fig. 1.

Fig. 3 is a schematic sectional structure view of B-B in fig. 1.

Fig. 4 is a schematic sectional structure view of C-C in fig. 1.

Fig. 5 is a schematic sectional view of D-D in fig. 1.

Fig. 6 is a front view schematically showing the structure of the partition plate.

Detailed Description

The utility model provides a special tool for installing a steam turbine condenser partition plate, wherein a main beam 1 is fixed at two ends of a condenser cylinder body through two pairs of C-shaped clamps and penetrates through two end surfaces of the condenser cylinder body in length, a sliding seat 9 is slidably positioned on the main beam for hanging the partition plate, two ends of the main beam are respectively provided with a fixed pulley 2, one end of each of two traction ropes 11 is connected with the sliding seat, and the other end of each of the two traction ropes respectively bypasses the two fixed pulleys so as to realize traction on the sliding seat.

Each pair of C-shaped clamps comprises two C-shaped clamping frames 5 which are separated by a distance and are connected into a whole through a connecting plate 3 and a clamp 6; the connecting plate 3 and the clamp are arranged parallel to each other.

The C-shaped clamping frame is provided with a hole for inserting the connecting plate and a puller bolt 4 for locking the connecting plate; two ends of the clamp are hinged with the C-shaped clamping frame through a short shaft 6.2 respectively (the two short shafts are fixedly connected to two ends of the clamp respectively), and the middle part of the clamp is provided with an inserting and embedding structure matched with the main beam and a tightening bolt 7 acting on the main beam.

The main beam is preferably an I-beam; the inserting and embedding structure is a C-shaped frame 6.1 which is matched with the lower part of the I-shaped beam in an inserting and embedding manner; two screw holes matched with the tightening bolts 7 are formed in the C-shaped frame.

The sliding seat is internally provided with a U-shaped frame 9, two horizontal shafts 9.1 are respectively provided with a roller 8, and one end of each horizontal shaft is fixedly connected with a vertical rod 9.2 of the U-shaped frame; the hook 10 is fixed at the bottom end of the U-shaped frame for hooking the partition board. The distance between two vertical rods of the U-shaped frame is larger than the width of the I-shaped beam, and one ends of two horizontal shafts are respectively fixed on the opposite side surfaces of the two vertical rods, so that the roller (preferably a bearing) can be hung on the I-shaped beam in a sliding manner.

The main beam is provided with scales arranged along the length direction.

Note: the positioning pins at both ends of the pulley and the bearing are omitted in the figure.

The specific use method is as follows:

1. as shown in fig. 4, the sliding seat 9 is mounted on the main beam (the sliding seat roller 8 is hooked on the slideway of the i-beam), so that the sliding seat can move freely on the sliding rail.

2. As shown in fig. 3, in the two C-shaped clamping frames of each pair of C-shaped clamps, a jacking bolt 4 matched with a top screw hole and a connecting plate 3 matched with the top screw hole are positioned on the top side of the outside of the cylinder; the clamp 6 which is hinged and matched with the bottoms of the two C-shaped clamps is positioned in the cylinder body, and the clamp 6 is fixedly connected with the lower part of the I-shaped beam through a tightening bolt 7.

3. And determining the positioning position of each partition plate on the cylinder according to the product drawing and the scales on the slide rail, and marking.

4. As shown in fig. 5, the partition plate is hung on the hook by a wire rope.

5. The weight of the partition board is used for pulling the pulling rope manually or by a winch.

6. After the clapboard is pulled to a specified position, the clapboard can be detached from the hook after spot welding and fixing. When the device is pulled, the partition board can deflect at a proper angle, so that the device can conveniently enter the cylinder body.

7. Repeating the steps of 4-6, loading the partition boards one by one, and installing and fixing.

Claims

1. The utility model provides a special frock of steam turbine condenser baffle installation which characterized in that: the special tool comprises a main beam (1) which is fixed at two ends of a condenser cylinder through two pairs of C-shaped clamps and penetrates through two end faces of the condenser cylinder in length, sliding seats (9) which are slidably positioned on the main beam and used for hanging partition plates, fixed pulleys (2) which are installed at two ends of the main beam, and two traction ropes (11) of which one ends are connected with the sliding seats and the other ends respectively bypass the two fixed pulleys to realize traction on the sliding seats.

2. The special tool for installing the turbine condenser separator plate according to claim 1, wherein: each pair of C-shaped clamps comprises two C-shaped clamping frames (5) which are separated at intervals and are connected into a whole through a connecting plate (3) and a clamp (6); the C-shaped clamping frame is provided with a hole for inserting the connecting plate and a puller bolt (4) for locking the connecting plate; the two ends of the clamp are hinged with the C-shaped clamping frame respectively, the middle of the clamp is provided with an inserting structure matched with the main beam and a tightening bolt (7) acting on the main beam.

3. The special tool for mounting the turbine condenser separator according to claim 2, wherein: the main beam is an I-shaped beam; the inserting and embedding structure is a C-shaped frame (6.1) matched with the lower part of the I-shaped beam in an inserting and embedding manner.

4. The special tool for installing the turbine condenser separator plate according to claim 3, wherein: the sliding seat comprises a U-shaped frame, two horizontal shafts and a hook, wherein the two horizontal shafts are provided with rollers, one ends of the two horizontal shafts are fixedly connected with the vertical rod of the U-shaped frame, and the hook is fixed at the bottom end of the U-shaped frame and used for hooking the partition plate.

5. The special tool for mounting the turbine condenser separator according to claim 4, wherein: the distance between two vertical rods (9.2) of the U-shaped frame is larger than the width of the I-shaped beam, and one ends of two horizontal shafts are respectively fixed on the opposite side surfaces of the two vertical rods, so that the rollers can be hung on the I-shaped beam in a sliding manner.

6. The special tool for installing the turbine condenser separator plate according to claim 5, wherein: the roller is a bearing.

7. The special tool for installing the turbine condenser separator plate according to claim 6, wherein: the main beam is provided with scales arranged along the length direction.