CN218254912U

CN218254912U - Built-in orifice pipe assembly and disassembly tools

Info

Publication number: CN218254912U
Application number: CN202221974126.5U
Authority: CN
Inventors: 魏计波; 任岸伟; 孙国强; 马奔腾; 李学成; 王垠博; 陈松
Original assignee: Hua Electricity Qu Dong Electricity Generating Corp Ltds
Current assignee: Hua Electricity Qu Dong Electricity Generating Corp Ltds
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2023-01-10
Anticipated expiration: 2032-07-25

Abstract

The utility model discloses a built-in orifice pipe assembly and disassembly tools, which comprises a left clamp body and a right clamp body which are connected with each other, wherein the left clamp body is connected with a right clamp body bearing, and the connecting position of the left clamp body and the right clamp body bearing is a connecting part; one end of the left forceps body is a left forceps mouth, and the other end of the left forceps body is a handle part; one end of the right forceps body is a right forceps mouth, and the other end of the right forceps body is a handle part; the connecting part is arranged between the left forceps mouth and the handle part and between the right forceps mouth and the handle part; the left forceps mouth and the right forceps mouth are provided with a compact structure at positions which are separated from the connecting part by a preset distance; the connecting part is also connected with a supporting rod; an included angle area is formed between the left clamp body and the right clamp body. The utility model discloses an inside built-in orifice pipe assembly and disassembly tools stretches into narrow equipment inside, under the condition that does not damage other parts, assembly and disassembly tools accomplish fast to the pulling out and the installation operation of orifice pipe, and the staff of being convenient for changes orifice pipe fast or carries out corresponding inspection operation, labour saving and time saving, extension equipment life.

Description

Built-in orifice pipe assembly and disassembly tools

Technical Field

The utility model relates to a built-in orifice pipe assembly and disassembly tools belongs to steam turbine part dismouting equipment technical field.

Background

The steam turbine equipment is usually provided with a throttling pipe and other similar structural devices, the throttling pipe can be changed based on the steam-liquid substance scouring and corrosion in the throttling pipe after the device is used for a period of time, and when the throttling pipe cannot meet the use requirement, the throttling pipe needs to be replaced. In addition, the throttle pipe in the steam turbine equipment needs to be periodically disassembled and assembled for inspection according to safe use regulations. In actual operation, the steam turbine equipment is compact in structure, and the throttle pipe is inconvenient for workers to disassemble due to the fact that the throttle pipe is installed. If demolish by force, can damage in the equipment very likely, other part structures cause cost of maintenance's increase, have brought the inconvenience for staff's dismouting operation.

In the granted patent CN 211541056U-orifice tube pulling device, a device for pulling the orifice tube is specifically disclosed, in which a loop bar is fixed on a central hole of the orifice tube, a ram slides back and forth along the loop bar to impact a stop block to drive the loop bar to move, and the orifice tube is taken out to be pulled out from a heat exchange tube. However, in the actual operation process of the device, the hammer is used for impacting the loop bar back and forth to loosen the throttling hole pipe, and the problem of potential risk of possibly damaging other parts in the equipment is still not solved. And the mode that the device took out the choke orifice pipe still adopts the mode of pulling out, causes the damage to equipment inside easily, shortens equipment life, leads to the mode of current change choke pipe still not convenient to popularize and use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a built-in orifice assembly and disassembly tools can stretch into in the narrow space, under the condition that does not damage other inside parts of steam turbine equipment, can accomplish fast, safely pulling out and the installation operation to the orifice pipe, and the staff of being convenient for changes the orifice pipe fast or carries out corresponding inspection operation, labour saving and time saving reduces the condition that damages the equipment, extension equipment life.

In order to solve the technical problem, the utility model discloses a following technical scheme: a built-in throttling hole pipe dismounting tool comprises a left clamp body and a right clamp body which are connected with each other, wherein the connecting position of the left clamp body and the right clamp body is a connecting part, the left clamp body is connected with a right clamp body bearing, and the connecting position of the left clamp body and the right clamp body bearing is a connecting part; one end of the left clamp body is a left clamp mouth, and the other end of the left clamp body is a handle part; one end of the right forceps body is a right forceps mouth, and the other end of the right forceps body is a handle part; the connecting part is arranged between the left forceps mouth and the handle part and between the right forceps mouth and the handle part; the left forceps mouth and the right forceps mouth are provided with a compact structure at positions which are separated from the connecting part by a preset distance; the connecting part is also connected with a supporting rod; an included angle area is formed between the left clamp body and the right clamp body. Because one end of the throttling hole pipe is of a long and thin tubular structure, in order to facilitate the control operation of the throttling hole pipe, the end part of the opening part, which is contacted with the throttling hole pipe, is provided with the semicircular clamp mouth, so that the fixing operation of the throttling hole pipe is facilitated. The utility model discloses an inside built-in orifice pipe assembly and disassembly tools can go deep into steam turbine equipment, changes the powerful dismantlement mode of choosing the orifice pipe of traditional, and quick, efficient carry out the dismouting operation to the orifice pipe in the narrow space, simplify the dismouting operation of orifice pipe. And other parts in the equipment can not be damaged, so that the device is convenient for practical application.

In the dismounting tool for the internal orifice pipe, one end of the supporting rod is connected to the connecting part, and the other end of the supporting rod is connected to a screwdriver; the support rod is provided with a through hole corresponding to the position of the compact structure. The one end connecting portion of bracing piece, the other end are provided with the screwdriver, can realize remote part to corresponding with the screwdriver and control, reduce the staff and operate the degree of difficulty, promote work efficiency.

In the above assembling and disassembling tool for the pipe with the built-in throttling hole, the supporting rod is arranged in the included angle area formed between the left clamp body and the right clamp body. The screwdriver is arranged in the left clamp body and the right clamp body, so that the tool is convenient to use and daily storage, and excessive space cannot be occupied. Still be convenient for when using the control to the choke pipe for assembly and disassembly tools changes the mode of tradition pulling and dismantles the operation to the choke pipe, avoids steam turbine equipment inner structure to damage.

In the tool for disassembling and assembling the built-in throttling hole pipe, the compact structure is provided with at least one through hole, a nut and a screw. Set up through-hole and screw and correspond, provide the locking function for assembly and disassembly tools carry out control operation to the choke pipe for assembly and disassembly tools can carry out stable control to the choke pipe, can not take place the error in operation process.

In the dismounting tool for the pipe with the built-in throttling hole, the left clamp body is provided with the screw, the right clamp body is provided with the through hole, and the nut is correspondingly connected with the screw at the outer side of the right clamp body; the screw penetrates through the through hole and the through hole simultaneously. The left clamp body is provided with a screw, the right clamp body is provided with a through hole, the screw can penetrate through the through hole, and the position of the through hole corresponds to the position of the screw. When the disassembling tool is to finish the fastening and fixing operation of the throttling hole pipe, the throttling hole pipe to be disassembled and assembled can be fixed through the corresponding screw and the through hole in the compact structure. The mode simplifies the operation mode of the dismounting tool and is convenient for the operation of workers.

According to the dismounting tool for the pipe with the built-in throttling hole, the right clamp body is provided with the screw, the left clamp body is provided with the through hole, and the nut is correspondingly connected with the screw on the outer side of the left clamp body; the screw penetrates through the through hole and the through hole simultaneously. Set up the screw on the right side pincers body, set up the through-hole on the left side pincers body, realize the fixed operation to the choke pipe, the going on of follow-up dismouting operation of being convenient for.

In the dismounting tool for the internal throttling hole pipe, the length from the connecting part to the left forceps mouth and the right forceps mouth is greater than the whole length of the handle part. The structure is convenient for the assembly and disassembly tools to go deep into the steam turbine equipment to realize the assembly and disassembly control of the throttling hole pipe, the length of the handle part is set to be larger than that of the opening part, meanwhile, the compact structure arranged on the handle part is convenient for fastening operation, and the screwdriver is convenient for controlling the throttling hole pipe.

Compared with the prior art, the utility model discloses a built-in orifice pipe assembly and disassembly tools can stretch into inside constrictive steam turbine equipment, under the condition that does not damage other inside parts of steam turbine equipment, assembly and disassembly tools accomplish the pulling out and the installation operation to the orifice pipe fast, portably, and the staff of being convenient for changes the orifice pipe fast or carries out corresponding inspection operation, labour saving and time saving reduces the condition that damages equipment, extension equipment life.

Drawings

Fig. 1 is a schematic structural view of the open state of the present invention;

fig. 2 is a schematic structural view of the closed state of the present invention;

fig. 3 is a schematic structural view of the connection between the closed state and the orifice tube.

Reference numerals: 1-left forceps body, 2-right forceps body, 3-connecting part, 4-handle part, 5-right forceps mouth, 6-compact structure, 7-screwdriver, 8-through hole, 9-screw, 10-left forceps mouth, 11-support rod, 12-nut, 13-through hole.

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Detailed Description

Embodiment 1 of the utility model: a built-in orifice pipe dismounting tool is shown in figures 1, 2 and 3 and comprises a left clamp body 1 and a right clamp body 2 which are connected with each other, wherein the left clamp body 1 is in bearing connection with the right clamp body 2, and the connecting position of the left clamp body 1 and the right clamp body 2 is a connecting part 3; one end of the left forceps body 1 is provided with a left forceps mouth 10, and the other end of the left forceps body 1 is provided with a handle part 4; one end of the right forceps body 2 is a right forceps mouth 5, and the other end of the right forceps body 2 is a handle part 4; the connecting part 3 is arranged between the left forceps mouth 10 and the handle part 4, and between the right forceps mouth 5 and the handle part 4; the left forceps mouth 10 and the right forceps mouth 5 are provided with a compact structure 6 at the position which is separated from the connecting part 3 by a preset distance; the connecting part 3 is also connected with a support rod 11; an included angle area is formed between the left forceps body 1 and the right forceps body 2. The left clamp body 1 and the right clamp body 2 are connected into an integral structure through the connecting part 3, and the opening and closing operation of the two ends of the left clamp body 1 and the right clamp body 2 can be realized through the bearing connection of the connecting part 3. In this embodiment, the left caliper body 1 and the right caliper body 2 are not limited to the bearing connection, but may also include connection methods such as a nut connection and a rotation connection, and are not limited herein. On the integrated structure of the left forceps body 1 and the right forceps body 2, one end of the left forceps body 1 is provided with a left forceps mouth 10, and the other end of the left forceps body 1 is provided with a handle part 4; one end of the right forceps body 2 is a right forceps mouth 5, and the other end of the right forceps body 2 is a handle part 4. When handle portion 4 is closed, left side pincers mouth 10 and right pincers mouth 5 are closed equally along with the closed action of handle portion 4, left side pincers body 1 is connected for the rotatable body structure in both ends with right side pincers body 2 based on connecting portion 3, the operation of opening and shutting of left side pincers mouth 10 and right side pincers mouth 5 can be controlled through opening and shutting of control handle portion 4 to the realization, same operation can be realized under the action of handle portion 4 to left side pincers mouth 10 and right side pincers mouth 5 promptly, the staff of being convenient for carries out the dismouting to the choke pipe in the steam turbine equipment narrow space. Connecting portion 3 still is connected with bracing piece 11, and in this embodiment, bracing piece 11 can realize treating the operation of dismouting orifice pipe and provide other functions, simplifies the dismantlement step, promotes dismouting efficiency. When the left clamp body 1 and the right clamp body 2 are in an open state, an included angle area is formed between the left clamp body 1 and the right clamp body 2.

In the above-mentioned tool for disassembling and assembling the internal orifice tube, as shown in fig. 1, 2 and 3, one end of the support rod 11 is connected to the connecting portion 3, and the other end of the support rod 11 is connected to the screwdriver 7; the support bar 11 is provided with a through hole 13 at a position corresponding to the compact structure 6. In this embodiment, the screwdriver 7 may be a straight screwdriver, and may also be another type of screwdriver, and different types of screwdrivers may be provided according to the structure of the component to be detached, so that the type of screwdriver is not specifically limited herein. In actual conditions, the front end of the throttle orifice pipe is the screw thread, and the rest is a straight groove, and screwdriver 7 in this embodiment is set up to a straight screwdriver that can stretch into a straight groove of the throttle orifice pipe, and can rotate after cooperating with a straight groove joint of the throttle orifice pipe, can screw out the steam turbine equipment with throttle orifice pipe front end screw thread, realizes controlling whole throttle orifice pipe through a straight groove. A compact structure 6 is arranged at the position where the left forceps mouth 10 and the right forceps mouth 5 are separated from the connecting part 3 by a preset distance, and a through hole 13 is arranged at the position of the support rod 11 corresponding to the compact structure 6. The compact structure 6 may pass through the through-going hole 13 of the support bar 11. After the screwdriver 7 is abutted to the straight groove, the left clamp body 1, the support rod 11 and the right clamp body 2 are locked by the tight structure 6, and the throttle hole pipe can be screwed out by rotating the handle part 4. Adopt this built-in orifice pipe assembly and disassembly tools to carry out the dismouting operation to the orifice pipe, can not destroy other parts in the steam turbine equipment to change the operation mode that the tradition used the brute force to extract, labour saving and time saving, easy to operate, the practical application of being more convenient for. When the throttling hole pipe needs to be installed and operated, the throttling hole pipe can be installed and operated only by adopting the reverse step sequence, and the throttling hole pipe is convenient for workers to use.

Embodiment 2 of the utility model: a built-in orifice pipe dismounting tool, as shown in figure 1 and figure 3, a support rod 11 is arranged in a included angle area formed between a left clamp body 1 and a right clamp body 2. When the handle part 4 is held tightly, the left forceps body 1 is attached to the right forceps body 2. In order to avoid the situation that the supporting rod 11 is inconvenient to place at this moment, the supporting rod 11 is arranged to be capable of being placed in the left clamp body 1 and the right clamp body 2 when the left clamp body 1 and the right clamp body 2 are in contact with each other, so that the use of the dismounting tool is not influenced, the fastening operation of the dismounting tool is realized, the equipment structure is optimized, and the dismounting effect is improved. Because in practical application, one end of the throttle hole pipe is of a screw thread structure, the other end of the throttle hole pipe is of a straight-line-shaped groove, the screwdriver 7 on the supporting rod 11 selects a straight-line-shaped screwdriver corresponding to the screw thread structure, after the screwdriver 7 is abutted against the throttle hole pipe, the control on the throttle hole pipe is achieved, then the straight-line-shaped groove of the throttle hole pipe is fastened, when part of the structure of the throttle hole pipe and the supporting rod 11 are arranged in the left clamp body 1 and the right clamp body 2 together, the fastening effect of the dismounting tool can be improved, and the throttle hole pipe is driven to rotate to be separated from the steam turbine equipment along with the rotation of the dismounting tool.

In the above-described built-in orifice pipe attaching and detaching tool, as shown in fig. 1 and 2, the tightening structure 6 is provided with a through hole 8, a nut 12, and a screw 9. The through hole 8 of the compact structure 6 corresponds to the screw 9 and is matched with the screw 9, and the screw 9 can pass through the through hole 8 and then be fixed through the nut 12. The compact structure 6 is disposed at a position where the left and

right nipples

10 and 5 are spaced from the connecting portion 3 by a predetermined distance, and the predetermined position may be adjusted according to actual needs, which is not specifically limited herein. However, in this embodiment, the tightening structure 6 is disposed at a position corresponding to the through hole 13 of the support rod 11, so that the screw 9 can simultaneously penetrate through the through hole 8 and the through hole 13, and then be fixed by the nut 12 after penetrating through, thereby facilitating the control of the tool for disassembling and assembling, and achieving the fastening operation of the whole tool.

In the aforementioned disassembling tool for a pipe with a built-in orifice, as shown in fig. 1 and fig. 2, the tight structure 6 is provided with a screw 9 on the left clamp body 1, the tight structure 6 is provided with a through hole 8 on the right clamp body 2, and the nut 12 is correspondingly connected with the screw 9 on the outer side of the right clamp body 2; the screw 9 penetrates through the through hole 13 and the through hole 8 at the same time. Since the support rod 11 can be placed in the left forceps body 1 and the right forceps body 2, and the through hole on the support rod 11 corresponds to the through hole 8 in the compact structure 6, the screws 9 in the compact structure can penetrate through at the same time. Therefore, the screw 9 is arranged on the left clamp body 1, corresponds to the through hole 13 of the support rod 11 and the through hole 8 of the right clamp body 2, and is finally fixed by the nut 12. When the dismounting tool is closed, the screw 9 on one clamp body can simultaneously pass through the through hole 13 of the support rod 11 and the through hole 8 on the other clamp body, so that the function of fastening the dismounting tool by the compact structure 6 is realized.

Embodiment 3 of the utility model: in the tool for disassembling and assembling the pipe with the built-in throttling hole, as shown in fig. 1, 2 and 3, in the tool for disassembling and assembling the pipe with the built-in throttling hole, as shown in fig. 1 and 2, a tight structure 6 is provided with a screw 9 on a right clamp body 2, the tight structure 6 is provided with a through hole 8 on a left clamp body 1, and a nut 12 is correspondingly connected with the screw 9 on the outer side of the left clamp body 1; the screw 9 penetrates through the through hole 13 and the through hole 8 at the same time. In this embodiment, the screw 9 on the right clamp body 2 can simultaneously penetrate through the through hole 8 on the left clamp body 1 and the through hole 13 of the support rod 11, and then is fixed by the nut 12 after penetration, so as to realize the control of the throttle pipe to be disassembled and assembled.

Embodiment 4 of the utility model: in a built-in orifice pipe dismantling tool, as shown in fig. 1 and 2, the length from a connecting part 3 to a left jaw 10 and a right jaw 5 is larger than the whole length of a handle part 4. In order to facilitate the dismounting tool to stretch into the steam turbine equipment to carry out dismounting operation on the throttling hole pipe, simultaneously, the length of the handle part 4 of the dismounting tool is set to be greater than the lengths of the left clamp mouth 10 and the right clamp mouth 5, and the dismounting tool is convenient to control and use by workers when being convenient to go deep into the steam turbine equipment to carry out dismounting operation on the throttling hole pipe.

The utility model discloses a theory of operation of embodiment: as shown in FIG. 1 and FIG. 2, the disassembling tool for the pipe with built-in orifice of the present invention has a left pincer body 1 and a right pincer body 2 connected as a whole through a connecting portion 3. The connecting part 3 is taken as a middle part, one end of the whole body is taken as a handle part 4, the other end is taken as a left forceps mouth 10 and a right forceps mouth 5, and the length from the left forceps mouth 10 and the right forceps mouth 5 to the connecting part 3 is larger than that of the handle part 4. When the steam turbine is used, the left clamp mouth 10 and the right clamp mouth 5 penetrate into steam turbine equipment with the built-in throttle hole pipe, and the left clamp mouth 10 and the right clamp mouth 5 are arranged to be semicircular clamp mouths, so that the throttle hole pipe can be clamped quickly and stably, the screwdriver 7 arranged on the supporting rod 11 can be quickly aligned to a straight-line groove part of the throttle hole pipe, and the throttle hole pipe is locked. And then the screw 9 of the compact structure 6 penetrates through the through hole 8 and the through hole at the same time, and then is locked and fixed by a nut 12. So that the left clamp mouth 10 and the right clamp mouth 5 are coated outside the straight groove of the throttling hole pipe to complete the fixation of the throttling hole pipe. Because one end of the throttle orifice pipe is of a straight-line groove structure and the other end of the throttle orifice pipe is of a screw thread structure, the built-in throttle orifice pipe dismounting tool is rotated after the straight-line groove part of the throttle orifice pipe is fixed, and at the moment, the screw thread structure of the throttle orifice pipe is separated from the steam turbine equipment along with the rotation to finish dismounting. When the installation operation is carried out, the screw thread structure of the throttle hole pipe corresponds to the interior of steam turbine equipment, then the installation is carried out in a rotating mode, after the installation is finished, the compact structure 6 is opened again to enable the screwdriver 7 to leave the straight groove of the throttle hole pipe, then the left clamp mouth 10 and the right clamp mouth 5 are far away from the throttle hole pipe, and then the built-in throttle hole pipe dismounting tool can be taken out, and the installation operation is finished. The dismounting tool for the built-in throttle hole pipe not only simplifies the dismounting operation of the throttle hole pipe, but also simplifies the mounting operation of the throttle hole pipe, is more suitable for practical application, and is convenient for operators to operate.

Claims

1. A built-in throttling hole pipe dismounting tool comprises a left clamp body (1) and a right clamp body (2) which are connected with each other, and is characterized in that the left clamp body (1) is in bearing connection with the right clamp body (2), and the bearing connection position of the left clamp body (1) and the right clamp body (2) is a connecting part (3); one end of the left forceps body (1) is provided with a left forceps mouth (10), and the other end of the left forceps body (1) is provided with a handle part (4); one end of the right forceps body (2) is a right forceps mouth (5), and the other end of the right forceps body (2) is a handle part (4); the connecting part (3) is arranged between the left forceps mouth (10) and the handle part (4), and the connecting part (3) is arranged between the right forceps mouth (5) and the handle part (4); a compact structure (6) is arranged between the left clamp body (1) and the right clamp body (2); the connecting part (3) is also connected with a support rod (11); an included angle area is formed between the left clamp body (1) and the right clamp body (2).

2. The built-in orifice pipe dismounting tool according to claim 1, characterized in that one end of the support rod (11) is connected to the connecting part (3), and the other end of the support rod (11) is connected to a screwdriver (7); the support rod (11) is provided with a through hole (13) corresponding to the compact structure (6).

3. The built-in orifice pipe dismounting tool according to claim 2, characterized in that the support rod (11) is arranged in a corner clamping area formed between the left clamp body (1) and the right clamp body (2).

4. The built-in orifice tube dismounting tool according to claim 2, characterized in that said tight structure (6) is provided with a through hole (8), a nut (12) and a screw (9).

5. The tool for disassembling and assembling the built-in throttling hole pipe according to claim 4, wherein a screw (9) is arranged on the left clamp body (1), a through hole (8) is arranged on the right clamp body (2), and the nut (12) is correspondingly connected with the screw (9) on the outer side of the right clamp body (2); the screw (9) penetrates through the through hole (13) and the through hole (8) simultaneously.

6. The tool for disassembling and assembling the built-in throttling hole pipe according to claim 4, wherein a screw (9) is arranged on the right clamp body (2), a through hole (8) is arranged on the left clamp body (1), and the nut (12) is correspondingly connected with the screw (9) on the outer side of the left clamp body (1); the screw (9) penetrates through the through hole (13) and the through hole (8) simultaneously.

7. The built-in orifice pipe dismounting tool according to claim 1, characterized in that the length from the connecting part (3) to the left forceps mouth (10) and the right forceps mouth (5) is larger than the whole length of the handle part (4).