CN114472967B

CN114472967B - Equipment for drilling pressure measuring lug of steam pipeline

Info

Publication number: CN114472967B
Application number: CN202210263262.1A
Authority: CN
Inventors: 王继烈; 余求问; 周黎明; 杨兴桂
Original assignee: Hangzhou Steam Turbine Casting and Forging Co Ltd
Current assignee: Hangzhou Steam Turbine Casting and Forging Co Ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2023-11-17
Anticipated expiration: 2042-03-16
Also published as: CN114472967A

Abstract

The application discloses equipment for drilling pressure measuring lugs of a steam pipeline, which comprises the following components: a support member; the limiting piece is connected with the supporting piece and is provided with a limiting hole, and the inner diameter of the limiting hole is larger than the outer diameter of the pressure measuring lug; the movable piece is movably arranged on the supporting piece; the drill gun is connected with the moving part, the length direction of the drill bit of the drill gun is coincident with or approximately parallel to the central line of the limiting hole, and the drill bit of the drill gun can penetrate into the limiting hole. And sleeving the limiting piece on the pressure measuring lug. Starting a drilling gun, enabling a drill bit to enter the limiting hole through the drilling gun, and drilling the pressure measuring lug. And a limiting piece is arranged, a limiting hole is formed in the limiting piece, the limiting piece is conveniently sleeved on the pressure measuring lug, and drilling accuracy is guaranteed. Compared with the prior machine tool processing of the applicant, the efficiency is greatly improved and shortened to 10-20 minutes.

Description

Equipment for drilling pressure measuring lug of steam pipeline

Technical Field

The application relates to the technical field of steam pipeline processing equipment, in particular to equipment for drilling pressure measuring lugs of a steam pipeline.

Background

The overflow pipe and the steam inlet pipe are main steam pipelines of the industrial driving steam turbine. The overflow pipeline is used for a steam turbine with a steam extraction function, and is used for controlling the pressure of the medium-pressure chamber by utilizing the overflow valve to control the steam of the high-pressure chamber. The steam inlet pipeline is applied to a full-circumference steam inlet turbine, and has the function of increasing the steam inlet quantity of the main steam valve. They all have pressure taps to facilitate collection of steam temperature and pressure parameters during on-site commissioning and operation.

Because the pipeline is subjected to pickling phosphorization and hydrostatic test after being welded, the internal pressure measuring holes of the pressure measuring lugs are required to be processed after the pipeline is welded.

In the prior art, the machine tool is used for machining, but because the steam pipeline is huge, the positions of the pressure measuring lugs are different, and when the drilling machine is used for machining, the pressure measuring lugs need to be corresponding to a drill bit on the machine tool, but because the pressure measuring lugs are positioned at different positions, the clamping cannot be carried out or the clamping has potential safety hazards. And the efficiency is low by using a machine tool to process for about 2 hours. In view of the above, the applicant provides a device for drilling pressure tap of steam pipeline, which avoids using machine tool to drill pressure tap, and has high efficiency and convenient use.

Disclosure of Invention

In order to solve at least one technical problem existing in the background art, the application provides equipment for drilling pressure measuring lugs of a steam pipeline.

The application provides equipment for drilling pressure measuring lugs of a steam pipeline, which comprises the following components:

a support member;

the limiting piece is connected with the supporting piece and is provided with a limiting hole, and the inner diameter of the limiting hole is larger than the outer diameter of the pressure measuring lug;

the movable piece is movably arranged on the supporting piece;

the drill gun is connected with the moving part, the length direction of the drill bit of the drill gun is coincident with or approximately parallel to the central line of the limiting hole, and the drill bit of the drill gun can penetrate into the limiting hole.

Preferably, the limiting hole is stepped, and an inner diameter of one end far away from the drill gun is larger.

Preferably, the apparatus further comprises a positioning part disposed on a moving path of the moving member to prevent the moving member from moving.

Preferably, the positioning portion includes:

the positioning plate is movably connected with the supporting piece and is positioned on the moving path of the moving piece;

and the positioning piece is used for fixing the positioning plate.

Preferably, the apparatus further comprises:

a clamping plate arranged on one side of the limiting piece away from the drill gun;

and the tensioning part is used for driving the clamping plate to be close to or far away from the limiting piece.

Preferably, the clamping plate is arc-shaped.

And a flexible layer is arranged on one side of the clamping plate, which is close to the limiting piece.

Preferably, the tightening part includes:

a connecting piece;

the two screws are connected with the connecting piece at intervals;

and the two threaded pipes are respectively in threaded connection with the two threaded rods and are in rotary connection with the clamping plate.

Preferably, the connector comprises:

a fixing plate connected with the supporting piece;

the sliding block can slide in the vertical direction on the fixed plate; the screw is connected with the sliding block, and the screw is horizontally arranged;

and the fastening module is used for fixing the sliding block.

Preferably, the apparatus further comprises:

a base;

the clamping piece is arranged on the base;

and the matching piece can be clamped with the clamping piece and is arranged on the supporting piece.

The beneficial effects brought by one aspect of the application are as follows:

and sleeving the limiting piece on the pressure measuring lug.

Starting a drilling gun, enabling a drill bit to enter the limiting hole through the drilling gun, and drilling the pressure measuring lug.

And a limiting piece is arranged, a limiting hole is formed in the limiting piece, the limiting piece is conveniently sleeved on the pressure measuring lug, and drilling accuracy is guaranteed.

Compared with the prior machine tool processing of the applicant, the efficiency is greatly improved and shortened to 10-20 minutes.

The applicant does not need to use the machine tool to process, the productivity of the machine tool is released, other workpieces can be processed by using the machine tool, and the overall production efficiency of the applicant is improved.

Drawings

FIG. 1 is an axial view of the present disclosure;

FIG. 2 is a front view of the present disclosure;

FIG. 3 is an axial view of the present disclosure;

FIG. 4 is an axial view of the present disclosure;

FIG. 5 is an axial view of a stop disclosed herein;

FIG. 6 is a schematic illustration of applicants' previous processing of pressure taps with a machine tool;

fig. 7 is a schematic diagram of a steam line.

Detailed Description

It should be noted that, under the condition of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other; the following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left" and "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the positions or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-5, the present application provides an apparatus for drilling holes in pressure taps of a steam line, comprising:

a support 1; and the limiting piece 2 is connected with the supporting piece 1 and is provided with a limiting hole 201, and the inner diameter of the limiting hole 201 is larger than the outer diameter of the pressure measuring lug C.

A moving member 3 movably disposed on the supporting member 1; and a drill gun 4 connected to the moving member 3, wherein the length direction of the drill bit 401 of the drill gun 4 is coincident with or substantially parallel to the center line of the limiting hole 201, and the drill bit 401 of the drill gun 4 can penetrate into the limiting hole 201.

The limiting piece 2 is sleeved on the pressure measuring lug C.

The drill gun 4 is started, and the drill bit 401 is led into the limit hole 201 through the drill gun 4 to drill the pressure measuring lug C.

And the limiting piece 2 is arranged, the limiting hole 201 is formed in the limiting piece 2, the limiting piece is conveniently sleeved on the pressure measuring lug C, and drilling accuracy is guaranteed.

Compared with the prior processing of the applicant by using a machine tool, the efficiency of the embodiment is greatly improved and is shortened to 10-20 minutes.

As a further improvement of the above embodiment, in one embodiment, the limiting hole 201 is stepped, and an inner diameter of an end of the limiting hole away from the drill gun 4 is larger. The pressure measuring lug C is suitable for pressure measuring lugs C with different outer diameters, and has good adaptability.

As a further improvement of the above-described embodiment, in one embodiment, the apparatus further comprises a positioning portion provided on the moving path of the moving member 3 for preventing the moving member 3 from moving. In order to control the drilling depth of the drill 401, the drill 401 is prevented from being too deep by providing a positioning portion.

As a further improvement of the above embodiment, in one embodiment, the positioning portion includes:

a positioning plate 5 movably connected with the supporting member 1 and located on the moving path of the moving member 3; and the positioning piece 6 is used for fixing the positioning plate 5. The positioning member 6 may be a bolt, and a plurality of threaded holes matched with the bolt may be formed in the supporting member 1. The bolts are arranged on the positioning plate 5, and the positioning plate 5 is fixed by the bolts and the threaded holes.

The position of the locating plate 5 can be adjusted according to the drilling depth requirements of different pressure measuring lugs C, and then the locating plate is fixed by the locating piece 6.

A sliding groove can be arranged on the supporting piece 1, and the moving piece 3 and the positioning plate 5 are both in sliding connection with the sliding groove.

When the moving part 3 moves to be in contact with the positioning plate 5, the positioning plate 5 prevents the moving part 3 and the drill gun 4 from continuing to advance, so that the drilling is prevented from being too deep. The drilling depth of the pressure measuring lug C is effectively controlled.

As a further improvement to the above example, in one embodiment, the apparatus further comprises:

a clamping plate 7 arranged on the side of the limiting piece 2 away from the drill gun 4; and the tensioning part is used for driving the clamping plate 7 to be close to or far away from the limiting piece 2. During operation, the tensioning part drives the clamping plate 7 to clamp the limiting piece 2, the limiting piece 2 is sleeved on the pressure measuring lug C, force is applied from two sides, movement of the steam pipeline G is avoided, and drilling accuracy is guaranteed.

As a further development of the above example, in one embodiment the clamping plate 7 is arc-shaped. The steam pipeline G is convenient to attach to the steam pipeline G, and the steam pipeline G is convenient to clamp.

As a further development of the above-described embodiment, in one embodiment the clamping plate 7 is provided with a flexible layer 16 on the side adjacent to the limiting member 2. The flexible layer 16 is used for flexibly contacting the steam pipeline G, so that the steam pipeline G is better extruded, and hard contact is avoided.

As a further improvement of the above example, in one embodiment, the tightening part includes:

a connecting piece; two screws 8 connected with the connecting piece at intervals; and two threaded pipes 9 are respectively in threaded connection with the two threaded rods 8 and are in rotary connection with the clamping plate 7.

By rotating the threaded tube 9, the clamping plate 7 is driven to approach or depart from the steam pipeline G.

As a further improvement to the above example, in one embodiment, the connector comprises:

a fixing plate 10 connected to the support 1; a slider 11 capable of sliding in the vertical direction on the fixing plate 10; wherein the screw rod 8 is connected with the sliding block 11, and the screw rod 8 is horizontally arranged; a fastening module 12 for fixing the slider 11. The fastening module 12 can be a bolt, the bolt is in threaded connection with the fixing plate 10 and is in rotary connection with the sliding block 11, the sliding block 11 and the screw rod 8 are driven to lift by the rotary bolt, and the position of the clamping plate 7 is adjusted, so that the steam pipeline G is better clamped. The steam pipeline G with different types and sizes can be clamped, and the adaptability is good.

a base 13; a clamping piece 14 arranged on the base 13; and the matching piece 15 can be clamped with the clamping piece 14 and is arranged on the supporting piece 1.

When the support is used, the support piece 1 can be placed on the base 13 through the matching piece 15 and the clamping piece 14, so that the support piece 1 is conveniently supported, the support piece is not needed to be held by hands, and the labor intensity of operators is reduced. And after the operation is finished, the operation is taken down.

The foregoing is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, who is within the scope of the present application, should make equivalent substitutions or modifications according to the technical scheme of the present application and the inventive concept thereof, and should be covered by the scope of the present application.

Claims

1. An apparatus for pressure tap drilling of a steam line, comprising:

a support member;

the movable piece is movably arranged on the supporting piece;

the drill gun is connected with the moving part, the length direction of the drill bit of the drill gun is coincident with or approximately parallel to the central line of the limiting hole, and the drill bit of the drill gun can penetrate into the limiting hole;

the limiting hole is stepped, and the inner diameter of one end far away from the drilling gun is larger;

the device also comprises a positioning part, wherein the positioning part is arranged on the moving path of the moving part and used for preventing the moving part from moving;

the positioning portion includes: the positioning plate is movably connected with the supporting piece and is positioned on the moving path of the moving piece; the positioning piece is used for fixing the positioning plate;

wherein, a chute is arranged on the supporting piece, and the moving piece and the positioning plate are both in sliding connection with the chute;

when the moving piece moves to be in contact with the positioning plate, the positioning plate prevents the moving piece and the drilling gun from continuing to advance, so that the drilling is prevented from being too deep;

the apparatus further comprises: a clamping plate arranged on one side of the limiting piece away from the drill gun; the tensioning part is used for driving the clamping plate to be close to or far away from the limiting piece;

the tightening part includes: a connecting piece; the two screws are connected with the connecting piece at intervals; the two threaded pipes are respectively in threaded connection with the two threaded rods and are in rotary connection with the clamping plate;

the connector includes: a fixing plate connected with the supporting piece; the sliding block can slide in the vertical direction on the fixed plate; the screw is connected with the sliding block, and the screw is horizontally arranged; and the fastening module is used for fixing the sliding block.

2. The apparatus for pressure tap drilling of steam lines of claim 1 wherein said clamping plates are arcuate.

3. The apparatus for drilling pressure tap of steam line according to claim 2, wherein the clamping plate is provided with a flexible layer on a side close to the limiting member.

4. The apparatus for pressure tap drilling of a steam line of claim 1, further comprising:

a base;

the clamping piece is arranged on the base;