CN209599127U - Flange opening device - Google Patents

Abstract

The utility model discloses a flange opens device, including mainboard, subplate, slide bar, screw rod, mainboard and subplate structure symmetry. The mainboard includes mainboard seat and mainboard foot, and the mainboard foot is located mainboard seat below, the one end of mainboard foot and the one end parallel and level of mainboard seat, and the width of mainboard foot is narrower than the width of mainboard seat, makes the other end of mainboard foot and the other end of mainboard seat form the step. The secondary plate and the main plate are symmetrical in structure. Be provided with the mainboard slide on the mainboard seat, be equipped with the subplate slide on the subplate seat, the slide bar passes mainboard slide and subplate slide, and it has the mainboard screw to open on the mainboard seat, and the screw rod passes the mainboard screw for screw rod top and subplate contact, along with the continuous screw in of screw rod, the subplate outwards removes along the slide, struts the flange. The utility model discloses can ensure that the clearance between the flange is stable unchangeable, avoid causing the injury to operating personnel, improve the security of changing the sealed pad operation of flange, reduce working strength, improve work efficiency.

Description

Flange spreader

technical field

The utility model relates to the field of pipeline connection equipment accessories, in particular to a flange opening device.

Background technique

In the petrochemical industry and various pipeline installation and production sites, there are many pipelines that use the flange connection method. The flange connection method is a common connection method for pipelines. It is cast with flanges at both ends of the pipeline , There is a sealing groove on the end face of the flange, and a sealing ring (pad) is installed in the groove. After the butt joint is completed, the pipes are tightly connected together with bolts or studs. In order to ensure the normal operation, stop and maintenance of pipelines, flange fittings of various models and specifications are installed on various pipelines to achieve the control of the liquid in the pipelines and make the pipelines run safely and smoothly. With the long operation period of the pipeline, pressure changes in the pipeline, medium corrosion, aging of the sealing ring (pad) and other reasons, the flange seal fails and leakage occurs. The gasket must be replaced to eliminate the leak in order for the line to operate.

In the current technology of replacing flange sealing rings (pads), it is necessary to expand the gap between flanges when replacing flange sealing rings (pads) in order to remove the damaged sealing rings (pads) between flanges. , because the stress generated by the pipeline is relatively large, the two flanges are pried apart with a crowbar in the related art at present.

However, in the process of using the crowbar, there are often phenomena such as the crowbar slipping, slipping, and instability, and the gap between the flanges is also constantly changing, which is very easy to cause injury to the operator. At the same time, it is necessary to replace the sealing ring (pad) The difficulty prolongs the replacement time and brings inconvenience to pipeline repair.

Utility model content

The utility model provides a flange opening device to solve the deficiencies of related technologies, thereby ensuring that the gap between flanges is stable and does not change, avoiding injuries to operators, and improving the safety of replacing flange gaskets. It reduces the work intensity and improves the work efficiency. Described technical scheme is as follows:

A flange expansion device includes a main board, an auxiliary board, a sliding rod, and a screw rod. The structure of the main board and the auxiliary board is symmetrical. The main board includes a main board base and a main board foot. The main board foot is located below the main board base. One end forms a step with the other end of the main board seat, which is convenient for the main board foot to be inserted between the flanges. The sub board includes a sub board seat and a sub board foot. Flat, the width of the sub-plate foot is narrower than the width of the sub-plate seat, so that the other end of the sub-plate foot and the other end of the sub-plate seat form a step, which is convenient for the sub-plate foot to be inserted between the flanges. The sub-board slideway is provided on the sub-board seat, the slide rod passes through the main board slideway and the sub-board slideway, the main board screw hole is opened on the main board base, the screw rod passes through the main board screw hole, so that the top of the screw rod contacts the sub-board, With the continuous screwing in of the screw rod, the sub-plate moves outward along the slideway to open the flange.

Optionally, the lower ends of the main board base and the sub-board base are provided with arc-shaped seats for contacting with the outer edge of the flange.

Optionally, the lower ends of the main board feet and the auxiliary board feet are provided with arc-shaped feet for increasing the contact area between the board feet and the side of the flange.

Optionally, the main board feet are integrally formed with the main board seat, and the auxiliary board legs are integrally formed with the auxiliary board seat.

Optionally, the mainboard screw holes are located in the middle of the mainboard.

Optionally, the slideway of the main board is located on the upper part of the main board, and the slideway of the sub-board is located on the upper part of the sub-board.

Optionally, the width of the main board foot and the auxiliary board foot is set to a width that can be inserted between the flanges during initial use.

Optionally, the slideway of the main board and the slideway of the auxiliary board are processed into circular through holes with the same diameter, and the slide rod is processed into a round rod with the same diameter, so that the main board and the auxiliary board move along the slideway.

The beneficial effects brought by the technical solution provided by the utility model at least include:

The flange expansion device provided in this embodiment, when the screw is rotated, the screw pushes the sub-plate outward, so that the sub-plate moves outward along the slide bar, thereby expanding the distance between the flanges and avoiding the expansion of the flange gap. The crowbar is used when using the crowbar, which eliminates the phenomenon that the crowbar often slips, slips, and is unstable during the use of the crowbar, and ensures that the flange can be opened stably and safely when the gasket is replaced. The gap is stable and does not change, which avoids harm to the operator, improves the safety of the operation of replacing the flange gasket, reduces the work intensity, and improves the work efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is the schematic diagram of the flange opening device that the utility model embodiment provides;

Fig. 2 is a side view of the flange opening device provided by the embodiment of the present invention;

Fig. 3 is a schematic view of the use of the flange expansion device provided by the embodiment of the present invention.

The reference signs in the figure represent respectively:

1, main board, 11, main board seat, 111, main board slideway, 112, main board screw hole, 12, main board foot;

2, auxiliary plate, 21, auxiliary plate seat, 211, auxiliary plate slideway, 22, auxiliary plate foot;

3, slide rod, 4, screw rod, 5, flange, 51, flange bolt hole, 52, gasket;

6, arc seat, 7, arc foot, 8, pipeline.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

As shown in FIGS. 1-3 , the flange expansion device of this embodiment includes a main board 1 , an auxiliary board 2 , a sliding rod 3 and a screw rod 4 . The structure of the main board 1 and the sub-board 2 is symmetrical, so that when the screw 4 is rotated, the screw 4 pushes the sub-board 2 outwards, so that the sub-board 2 moves outward along the slide bar 3, thereby expanding the distance between the flanges.

Wherein, mainboard 1 comprises mainboard base 11 and mainboard pin 12, mainboard pin 12 is positioned at mainboard base 11 below, and one end of mainboard pin 12 is flush with one end of mainboard base 11, and the width of mainboard pin 12 is narrower than the width of mainboard base 11, makes The other end of the main board foot 12 forms a step with the other end of the main board base 11 , so that the main board foot 12 is inserted between the flanges 5 .

The sub-board 2 includes a sub-board seat 21 and a sub-board foot 22, the sub-board foot 22 is located below the sub-board seat 21, one end of the sub-board foot 22 is flush with one end of the sub-board seat 21, and the width of the sub-board foot 22 is smaller than that of the sub-board. The width of the seat 21 is narrow, so that the other end of the auxiliary plate foot 22 and the other end of the auxiliary plate seat 21 form a step, so that the auxiliary plate foot 22 is inserted between the flanges 5 .

Optionally, arc-shaped seats 6 are provided at the lower ends of the main board base 11 and the sub-board base 21 to facilitate full contact with the outer edge of the flange 5 . The lower ends of the main board feet 12 and the auxiliary board feet 22 are provided with arc-shaped feet 7, which is convenient for increasing the contact area between the board feet and the side of the flange 5. Thereby, it is possible to stabilize the contact between the flange spreading device and the flange during replacement.

Optionally, the main board feet 12 and the main board seat 11 are integrally formed, and the sub-board feet 22 and the sub-board seat 21 are integrally formed. The main board 1 and the sub-board 2 can be made of high-quality carbon steel or T8 steel, thereby ensuring the flange Structural strength of the splay device.

Optionally, the width of the main board foot 12 and the auxiliary board foot 22 is set to a width that can be inserted into the flange during initial use. The main board base 11 is provided with a main board slideway 111, and the sub-board base 21 is provided with a sub-board slideway 211, and the slide bar 3 passes through the main board slideway 111 and the sub-board slideway 211 to ensure that the main board 1 and the sub-board 2 slide along the Rod 3 moves. The main board base 11 is provided with a main board screw hole 112, and the screw rod 4 passes through the main board screw hole 112, so that the top of the screw rod 4 is in contact with the sub-board 2, and as the screw rod 4 is continuously screwed in, the sub-board 2 moves outward along the slideway, supporting Open flange 5.

Optionally, the screw hole 112 of the main board is located in the middle of the main board 1 , so that the sub-board 2 can be moved better.

Optionally, the slideway 111 of the main board is located on the upper part of the main board 1 , and the slideway 211 of the auxiliary board is located on the upper part of the auxiliary board 2 , so that the slideways do not affect the movement of the screw 4 .

Optionally, the slideway 111 of the main board and the slideway 211 of the auxiliary board are processed into circular through holes with the same diameter, and the slide bar 3 is processed into a round bar with the same diameter, so as to facilitate the sliding of the slide bar 3 in the slideway, so that the main board 1 and the auxiliary board 2 Move along the slide.

The method of using the flange opening device described in this embodiment is as follows:

Referring to Fig. 3, for the flange 5 used in the pipeline 8, remove the connecting bolts on the flange bolt holes 51, and insert the main board feet 12 and the auxiliary board feet 22 of the main board 1 and the sub board 2 between the flanges 5 . The main board base 11 and the sub-board base 21 are installed on the outer circle of the flange 5, and the arc seat 6 at the lower end of the main board base 11 and the sub-board base 21 is fully in contact with the outer edge of the flange 5. Insert the slide rod 3 between the slideway 111 of the mainboard and the slideway 211 of the auxiliary board, and turn the screw 4 on the mainboard clockwise with a wrench, the top of the screw 4 contacts with the auxiliary board 2, and as the screw 4 of the mainboard is continuously screwed in, The sub-plate 2 moves outward along the slideway, so that the flanges 5 are opened. When the gap between the flanges 5 reaches that the gasket 52 can be replaced, the rotation of the main board screw 4 can be stopped. After replacing the flange gasket 52 with a qualified gasket, turn the screw 4 on the main board counterclockwise, the sub-board 2 moves inward along the slideway, press the flanges 5 tightly, and open the flange to the main board of the device 1 and the sub-plate 2 are removed from the flange 5, put on the bolts in the flange bolt holes 51, and tighten evenly to complete the replacement of the flange gasket.

The flange opening device provided by the embodiment of the utility model is suitable for all pipelines, valves and equipment connected by flanges.

The beneficial effects brought by the technical solutions provided by the embodiments of the utility model at least include:

The flange expansion device provided in this embodiment, when the screw is rotated, the screw pushes the sub-plate outwards, so that the sub-plate moves outward along the slide bar, thereby expanding the distance between the flanges. The flange expansion device has a simple structure , low cost, easy to manufacture, install and use, eliminates the phenomenon of crowbar slipping, slipping, and instability during the use of the crowbar, and ensures that the flange can be opened stably and safely when the gasket is replaced , to avoid injury to the operator, improve the safety of the operation of replacing the flange gasket, reduce the work intensity and improve work efficiency.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (8)

1. a kind of flange expansion device is characterized in that, described device comprises main board (1), sub-board (2), slide bar (3), screw rod (4), described main board (1) and sub-board ( 2) The structure is symmetrical; Wherein, the mainboard (1) includes a mainboard base (11) and a mainboard foot (12), the mainboard foot (12) is located below the mainboard base (11), and one end of the mainboard foot (12) is connected to the mainboard base One end of (11) is flush, and the width of mainboard foot (12) is narrower than the width of mainboard base (11), and the other end of described mainboard foot (12) forms a step with the other end of mainboard base (11), so that all The main board feet (12) are inserted between the flanges (5); The sub-board (2) includes a sub-board seat (21) and a sub-board foot (22), the sub-board foot (22) is located below the sub-board seat (21), and the sub-board foot (22) One end is flush with one end of the sub-board base (21), the width of the sub-board foot (22) is narrower than the width of the sub-board seat (21), and the other end of the sub-board foot (22) is aligned with the sub-board The other end of the seat (21) forms a step, so that the auxiliary plate foot (22) is inserted between the flanges (5); The main board base (11) is provided with a main board slideway (111), the sub-board base (21) is provided with a sub-board slideway (211), and the slide bar (3) passes through the main board slideway (111). ) and the sub-board slideway (211), the main board screw hole (112) is provided on the main board base (11), the screw rod (4) passes through the main board screw hole (112), and the screw rod (4) The top end is in contact with the sub-plate (2); the sub-plate (2) can move outward along the slideway as the screw (4) is continuously screwed in, so as to expand the flange (5). 2. The flange expansion device as claimed in claim 1, characterized in that, the lower ends of the main board base (11) and the sub-board base (21) are all provided with a ring for contacting with the outer edge of the flange (5). Arc seat (6). 3. The flange expansion device as claimed in claim 1, characterized in that, the lower ends of the main plate foot (12) and the auxiliary plate foot (22) are provided with a flange for increasing the plate foot and the side surface of the flange (5). The contact area of the curved foot (7). 4. The flange opening device according to claim 1, characterized in that, the main board foot (12) and the main board seat (11) are integrally formed, and the auxiliary board foot (22) and the auxiliary board seat (21) One piece. 5. The flange expansion device according to claim 1, characterized in that, the screw hole (112) of the main board is located in the middle of the main board (1). 6. The flange expansion device according to claim 1, characterized in that, the main board slideway (111) is located on the upper part of the main board (1), and the auxiliary board slideway (211) is located on the auxiliary board (2) the upper part. 7. The flange expansion device according to claim 1, characterized in that, the width of the main board foot (12) and the auxiliary board foot (22) is set to a width that can be inserted into the flange during initial use. 8. The flange expansion device according to claim 1 or 6, characterized in that, the main board slideway (111) and the auxiliary board slideway (211) are circular through holes with the same diameter, and the slide rod ( 3) are circular rods with the same diameter, so that the main board (1) and the sub-board (2) move along the slideway.