Multi-functional blind plate

Abstract

The utility model provides a kind of multi-functional blind plate, it is related to blind plate technical field.The utility model includes blind plate body, it is connected in flow channel end part or between two flow channels, at least one row hole is located on blind plate body, wherein, the row hole is bent, the inner end of the row hole is on the side wall of blind plate body that is in contact with flow channel interior, the outer end of the row hole is on the outer wall of blind plate body, the outer end of the row hole is communicated with drain pipe, valve is equipped on the drain pipe.The utility model can drain and replace to isolated pipeline or equipment.

Description

Technical Field

[0001] This utility model relates to the field of blind plate technology, specifically to a multifunctional blind plate. Background Technology

[0002] In cold hydrogenation production, when equipment and pipelines need to be repaired or modified (requiring hot work), since the media in the cold hydrogenation equipment and pipelines are mostly flammable, explosive, toxic and harmful, it is necessary to thoroughly drain and replace the liquid in the equipment and pipelines and reliably isolate them before the operation to ensure the safety of the repair. During the repair, blind flanges are usually installed on the equipment or pipelines.

[0003] However, in the existing technology, after the traditional blind flange is installed, it is inconvenient to drain and replace the isolated equipment and pipelines. Secondly, after maintenance, the blind flange needs to be removed. Since the media in chemical equipment pipelines are complex and maintenance operations are generally long, the media that was originally left on the pipe or equipment wall on the other side of the blind flange (the side that is not replaced or cleaned) will gradually accumulate. As a result, the accumulated media will be discharged without organization during the blind flange removal operation, which will affect the environment. Utility Model Content

[0004] The purpose of this invention is to develop a multifunctional blind flange that can drain and replace fluid in isolated pipes or equipment.

[0005] This utility model is achieved through the following technical solution:

[0006] A multifunctional blind plate, comprising:

[0007] The blind flange body is connected to the end of the flow channel or between two flow channels;

[0008] At least one perforation is provided on the blind plate body;

[0009] The drain hole is bent, with the inner end of the drain hole located on the side wall of the blind plate body in contact with the inside of the flow channel, and the outer end of the drain hole located on the outer wall of the blind plate body. The outer end of the drain hole is connected to a drain pipe, and a valve is provided on the drain pipe.

[0010] Optionally, the perforation is L-shaped, and the perforation includes an inner section and an outer section that are vertically connected. The inner section is parallel to the axial direction of the blind plate body, and the outer section is perpendicular to the axial direction of the blind plate body. The pipe is connected to the end of the outer section.

[0011] Optionally, the circular cross-section of the inner section of the perforation is inscribed within the circular cross-section of the inner wall of the flow channel.

[0012] Optionally, the blind plate body is provided with two rows of holes symmetrically, and the two rows of holes are located on the same radial direction of the blind plate body.

[0013] Optionally, the outer sections of the two rows of holes face opposite sides of the blind plate body.

[0014] Optionally, flanges are rotatably provided on both sides of the blind flange body, and the flanges are rotatably sealed to the blind flange body.

[0015] Optionally, the flange has multiple sealing grooves coaxial with the flange on the side wall near the blind flange body, and the blind flange body has multiple sealing rings that cooperate with the sealing grooves on the corresponding side wall.

[0016] Optionally, an operating component is provided on the outer wall of the blind flange body, and the blind flange body is rotated between the two flanges by the operating component.

[0017] Optionally, the operating component includes a support rod arranged radially along the outer wall of the blind plate body, with two push rods connected to the top of the support rod, and the two push rods arranged parallel to the axial direction of the blind plate body.

[0018] Optionally, the ends of the two push rods near the support rod are threaded structures, and the top of the support rod is provided with threaded holes corresponding to the two side walls of the two flanges. The support rod is threadedly connected to the push rod, and the end of the push rod away from the support rod is connected with a rubber support pad. The outside of the push rod is provided with anti-slip texture.

[0019] The beneficial effects of this utility model are:

[0020] This utility model of a multifunctional blind flange not only helps to thoroughly and quickly replace and clean chemical equipment and pipelines, and realize the drainage and replacement of pipelines, but also allows for the organized discharge of media remaining in pipelines or equipment before the blind flange is removed. The operation process is safe and environmentally friendly, and it has the characteristics of wide applicability, simple structure, safety and reliability, easy operation, and high practicality. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural diagram of Example 1;

[0023] Figure 2 This is a structural diagram of Example 2;

[0024] Figure 3 This is a structural diagram of Example 3;

[0025] Figure 4This is a structural diagram of Example 4.

[0026] Reference numerals: 1. Blind flange body; 2. Hole; 21. Inner section; 22. Outer section; 3. Flange; 4. Support rod; 5. Push rod; 6. Rubber support pad. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0028] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The following disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0030] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figure 1 As shown, this embodiment discloses a multifunctional blind flange, including a blind flange body 1. The blind flange body 1 has a plurality of screw holes evenly arranged around the center of the blind flange body 1 near its edge. The blind flange body 1 is connected to the flow channel end of a pipe or equipment through the screw holes.

[0033] The blind plate body 1 has a row of holes 2. The row of holes 2 is L-shaped and includes an inner section 21 and an outer section 22 that are vertically connected. The inner section 21 is parallel to the axial direction of the blind plate body 1, and the outer section 22 is perpendicular to the axial direction of the blind plate body 1.

[0034] The inner section 21 of the drain hole 2 has a circular cross-section that is tangent to the circular cross-section of the inner wall of the flow channel. The outer section 22 is opened inward from the outer wall of the blind plate body 1 and communicates with the inner section 21. The outer end of the outer section 22 is connected to a drain pipe, and a valve is provided on the drain pipe.

[0035] In this embodiment, the blind plate body 1 can be located at the end of the flow channel, or it can be located between two flow channels as a clamping blind plate.

[0036] When the blind flange body 1 is located at the end of the flow channel, the inner section 21 of the drain hole 2 faces the inside of the flow channel. When the blind flange body 1 is located between two flow channels, the inner section 21 of the drain hole 2 of the blind flange body 1 faces the side that needs to be drained.

[0037] By opening the valve on the drain pipe, the liquid in the flow channel can be discharged through the drain hole 2. It can also be replaced by injecting replacement gas into the interior through the drain hole 2, and then venting the gas through the drain hole 2.

[0038] Example 2

[0039] like Figure 2 As shown, this embodiment adds a row of holes 2 based on embodiment 1. The two rows of holes 2 are symmetrically arranged on the blind plate body 1 and are in the same radial direction. The inner sections 21 of the two rows of holes 2 face the same side.

[0040] This embodiment enables drainage and replacement of liquid in the flow channel on one side of the blind plate body 1. During drainage, the valve on the drain pipe of the drain hole 2 at the bottom is opened. During replacement, the valves on the drain pipes of both drain holes 2 are opened simultaneously. Then, replacement gas is injected into the interior through one drain hole 2, and exhaust is discharged through the other drain hole 2. Compared with Embodiment 1, this embodiment has one drain hole 2 for air intake and one drain hole 2 for air exhaust, resulting in higher replacement efficiency and better replacement effect.

[0041] Example 3

[0042] like Figure 3 As shown, this embodiment adds a row of holes 2 based on embodiment 1. The two rows of holes 2 are centrally symmetrical about the center of the blind plate body 1. The two rows of holes 2 are located in the same radial direction of the blind plate body 1, and the inner sections 21 of the two rows of holes 2 face opposite directions.

[0043] This embodiment can achieve drainage of one flow channel on both sides of the blind plate body 1 and replacement of the other flow channel.

[0044] Example 4

[0045] like Figure 4As shown, this embodiment differs from embodiment 3 in that: flanges 3 are respectively provided on both sides of the blind flange body 1, and the bolt holes of the blind flange body 1 can be bolted to the flanges 3, or the blind flange body 1 may not have bolt holes.

[0046] Specifically, the flanges 3 on both sides of the blind flange body 1 are rotatably connected to it on the same axis. The inner diameter of the flange 3 is adapted to the inner diameter of the flow channel on the corresponding side. The circular cross section of the inner section 21 of the outlet hole 2 is tangent to the circular cross section of the inner wall of the flange 3. When the blind flange body 1 is located between the two flow channels, the flanges 3 on both sides of the blind flange body 1 are connected to the flow channel flanges respectively.

[0047] The flange 3 and the blind flange body 1 are connected by a rotary seal. The side wall of the flange 3 near the blind flange body 1 is provided with multiple sealing grooves coaxial with the flange 3. The side wall of the corresponding side of the blind flange body 1 is provided with multiple sealing rings that cooperate with the sealing grooves.

[0048] Two sets of operating components are provided on the outer wall of the blind flange body 1. The operating components can fix the blind flange body 1 on the flange 3 or push the blind flange body 1 to rotate between the two flanges 3. The two operating components are symmetrically arranged and located on the same radial direction of the blind flange body 1. The position of the operating components avoids the outer section 22 of the drain hole 2.

[0049] The operating components include a support rod 4 radially disposed on the outer wall of the blind plate body 1. Two push rods 5 are threadedly connected to the top of the support rod 4. The two push rods 5 are arranged parallel to the axial direction of the blind plate body 1. The ends of the two push rods 5 near the support rod 4 are screw structures. The top of the support rod 4 is provided with screw holes corresponding to the two side walls of the two flanges 3.

[0050] A rubber support pad 6 is connected to the end of the push rod 5 away from the support rod 4. The height of the rubber support pad 6 is lower than the height of the bolt hole of the flange 3 to prevent the rubber support pad 6 from interfering with the bolt hole and nut of the flange 3. The push rod 5 has anti-slip texture on the outside. By holding the push rod 5 at the anti-slip texture, the push rod 5 is rotated to make it slide in a direction parallel to the axis of the blind plate body 1 under the thread engagement with the support rod 4, so that the push rod 5 moves closer to or away from the side wall of the flange 3.

[0051] When push rod 5 is away from the side wall of flange 3, rubber support 6 does not contact the side wall of flange 3, and blind flange body 1 is not fixed. Holding both push rods 5 allows the blind flange body 1 to rotate between the two flanges 3 to adjust the position of the drain hole 2. When push rod 5 is close to the side wall of flange 3 until rubber support 6 contacts and abuts against the side wall of flange 3, the blind flange body 1 is fixed and cannot rotate between the two flanges 3.

[0052] In Example 3, the flow channel on the upward-facing side of the row of holes 2 can only be replaced, but cannot drain liquid. In this example, based on Example 3, since the blind plate body 1 can be rotated to adjust the position of the two rows of holes 2, the flow channels on both sides of the blind plate body 1 can be replaced while draining liquid can also be achieved. When draining liquid, rotate the blind plate body 1 so that the outer section 22 of the corresponding row of holes 2 faces downward.

[0053] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A multifunctional blind plate, characterized in that, include: The blind flange body is connected to the end of the flow channel or between two flow channels; At least one perforation is provided on the blind plate body; The drain hole is bent, with the inner end of the drain hole located on the side wall of the blind plate body in contact with the inside of the flow channel, and the outer end of the drain hole located on the outer wall of the blind plate body. The outer end of the drain hole is connected to a drain pipe, and a valve is provided on the drain pipe.

2. The multifunctional blind plate according to claim 1, characterized in that, The perforation is L-shaped and includes an inner section and an outer section that are vertically connected. The inner section is parallel to the axial direction of the blind plate body, and the outer section is perpendicular to the axial direction of the blind plate body. The pipe is connected to the end of the outer section.

3. The multifunctional blind plate according to claim 2, characterized in that, The circular cross-section of the inner section of the perforation is inscribed within the circular cross-section of the inner wall of the flow channel.

4. The multifunctional blind plate according to claim 2, characterized in that, The blind plate body is provided with two rows of holes symmetrically arranged, and the two rows of holes are located on the same radial direction of the blind plate body.

5. The multifunctional blind plate according to claim 4, characterized in that, The outer sections of the two holes face the two sides of the blind plate body, respectively.

6. The multifunctional blind plate according to any one of claims 1 to 5, characterized in that, Flanges are rotatably mounted on both sides of the blind flange body, and the flanges are rotatably sealed to the blind flange body.

7. The multifunctional blind plate according to claim 6, characterized in that, The flange has multiple sealing grooves on its side wall near the blind flange body, which are coaxial with the flange. The blind flange body has multiple sealing rings on the corresponding side wall that mate with the sealing grooves.

8. The multifunctional blind plate according to claim 6, characterized in that, An operating component is provided on the outer wall of the blind flange body, and the blind flange body is rotated between the two flanges by the operating component.

9. The multifunctional blind plate according to claim 8, characterized in that, The operating component includes a support rod arranged radially along the outer wall of the blind plate body, and two push rods connected to the top of the support rod, the two push rods being arranged parallel to the axial direction of the blind plate body.

10. The multifunctional blind plate according to claim 9, characterized in that, The ends of the two push rods near the support rods are threaded. The top of the support rods near the two flanges are respectively provided with threaded holes that mate with the threaded rods. The support rods are threadedly connected to the push rods. The ends of the push rods away from the support rods are connected with rubber support pads. The push rods are provided with anti-slip textures on the outside.

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