Repairing and reinforcing device for condensate drain valve of pressure pipeline
By designing a repair and reinforcement device with an eccentrically installed reinforcing ring and a sealing structure, the problem of time-consuming and labor-intensive repair of pressure pipeline condensate drain valves was solved, achieving a fast, economical, and safe repair effect.
Patent Information
- Application Number
- CN202520283340.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In the existing technology, the repair and reinforcement process of pressure pipeline condensate drain valves is time-consuming, labor-intensive, and uneconomical, making it difficult to meet the needs of rapid emergency repairs. In particular, when there is a leak, disassembly and repair are required, which affects the normal operation of the pipeline.
A repair and reinforcement device including a reinforcing ring, a pipe cap, and a sealing structure was designed. It can quickly repair leaks in condensate drain valves through eccentric installation and welding, and use the sealing structure to prevent the accumulation of combustible gas, ensuring safety and meeting pressure requirements.
This technology enables rapid repair of condensate drain valves in pressure pipelines, avoiding disassembly and downtime, reducing costs, and ensuring safety and repair effectiveness.
Smart Images
Figure CN223740360U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline emergency repair technology, and in particular to a repair and reinforcement device for pressure pipeline condensate drain valves. Background Technology
[0002] Currently, some pressure pipelines are equipped with condensate drain valves, which are generally located at the bottom of the pipeline and tightly connected to the pressure pipeline by welding or other methods. Therefore, if a condensate drain valve has a quality problem, such as leakage, disassembly is very difficult and time-consuming. Furthermore, to ensure safety, it is usually necessary to stop pipeline operation, affecting normal pipeline function. In addition, after disassembly, the area needs to be repaired and reinforced to ensure the pipeline's continued normal use. Therefore, repairing pipeline condensate drain valves using the above methods is very uneconomical, requiring significant manpower and resources, and is time-consuming, failing to meet the needs of rapid fault repair. Therefore, there is an urgent need for a more economical and reasonable device that can meet the requirements for rapid repair and reinforcement of condensate drain valves in pressure pipelines. Utility Model Content
[0003] In view of this, the present invention provides a repair and reinforcement device for rapid repair and reinforcement of condensate drain valves in pressure pipelines. Its overall structure is simple, its manufacturing cost is low, and its installation is simple and quick.
[0004] The objective of this utility model is achieved through the following technical solution:
[0005] A repair and reinforcement device for a pressure pipeline drain valve includes a reinforcing ring, a cap, and a sealing structure. The reinforcing ring is arranged around the top of the outer side of the cap. The upper surface of the reinforcing ring is an arc-shaped cylindrical surface that matches the outer surface of the pressure pipeline. The two sides of the arc-shaped cylindrical surface have different heights. The inside of the cap is provided with a hollow part for accommodating the drain valve. The sealing structure is installed at the bottom of the cap to seal the cap.
[0006] The drain valve is installed at the center of the bottom of the pressure pipeline. When the drain valve or its connecting pipe malfunctions, such as leaks, and adversely affects pipeline operation, this device can be used to repair and reinforce the defective area. In operation, the cap of this device is placed over the drain valve, ensuring the upper surface of the reinforcing ring on the cap is flush with the pressure pipeline. The reinforcing ring is then connected and fixed to the pressure pipeline by welding or other methods. Finally, the cap is sealed using the bottom sealing structure, thus completing the repair of the defective area.
[0007] It should be noted that some pressure pipelines are used to transport flammable, explosive, or toxic substances. When repairing defective areas, the drain valve may still be leaking. If the cap is sealed while welding the reinforcing ring, flammable gas may accumulate inside the cap, potentially causing an explosion during welding, posing a safety risk. Therefore, when welding the reinforcing ring, the sealing structure should be disassembled or opened first, leaving the bottom of the cap open to prevent flammable gas from accumulating inside and ensuring safety. After the reinforcing ring is welded, the sealing structure should be closed to seal the cap, preventing substances from leaking out of the pipeline. The sealed cap also meets the pipeline's pressure requirements, ensuring normal operation and improving the repair and reinforcement effect.
[0008] In this design, the reinforcing ring has different heights on both sides of its curved cylindrical surface when viewed from the cross-section of the pipe, and it is not symmetrical about the vertical direction. Therefore, the device is installed eccentrically with the pipe. Since the drain valve is located at the bottom middle of the pipe and has a valve stem that is horizontally positioned, the reinforcing ring is used to make way for the valve stem and prevent it from touching the inner wall of the pipe cap. This method of installation, compared to a structure that is symmetrical about the vertical direction, can reduce the width of the pipe cap while avoiding interference, thereby saving manufacturing materials and reducing costs. In specific installation, the side of the reinforcing ring with the higher height is placed on the side with the valve stem.
[0009] Optionally, in one embodiment, the cap is a cylindrical structure that extends vertically, and the axis of the cap is misaligned with the axis of the pressure pipe.
[0010] In the above technical solution, the pipe cap is cylindrical in shape, which is convenient for production and processing. After the device is installed, in order to prevent the condensate drain valve and its valve stem from touching the pipe cap, the axis of the pipe cap is misaligned with the axis of the pressure pipeline in the vertical direction when viewed from the cross-sectional direction of the pipeline. However, the condensate drain valve and its valve stem are still located in the middle position inside the pipe cap.
[0011] Alternatively, in one embodiment, the reinforcing ring is arranged to surround the cap with the same width.
[0012] In the above technical solution, the reinforcing ring surrounds the pipe cap with the same width to ensure the connection strength and uniform stress at all points.
[0013] Optionally, in one embodiment, the sealing structure includes a flange and a flange cover, the flange being connected to the bottom of the pipe cap, and the flange cover being installed at the bottom of the flange.
[0014] In the above technical solution, the flange and flange cover have simple structures and are easy to obtain. The flange is connected to the bottom opening of the pipe cap, and the flange cover is installed on the flange to play a sealing role, preventing leakage inside the pipe cap while blocking external impurities from entering.
[0015] Optionally, in one embodiment, the flange is a weld neck flange.
[0016] In the above technical solution, the weld neck flange is not easily deformed and has good sealing performance. When used with the flange cover, it can effectively enhance the sealing effect of the pipe cap. The neck of the weld neck flange is welded to the bottom opening of the pipe cap.
[0017] Alternatively, in one embodiment, the reinforcing ring is connected to the pressure pipe by welding.
[0018] In the above technical solution, the outer side of the reinforcing ring is connected to the pressure pipeline by welding. The welding operation is quick and convenient, and the connection is stable and long-lasting.
[0019] The beneficial effects of this utility model are as follows:
[0020] This utility model's repair and reinforcement device is suitable for rapid repair of condensate drain valves in pressure pipelines. When condensate drain valves experience leakage or other quality problems, this device can be used for online rapid repair without shutting down the pipeline or replacing the medium inside the pipeline, nor is it necessary to perform cumbersome disassembly and repair work on the condensate drain valve. It is convenient, fast, and highly practical. In addition, the device has a simple overall structure, is easy to install and use, and its unique reinforcement ring structure design allows for eccentric installation with the pipeline. While ensuring that the condensate drain valve is not touched, the overall width of the pipe cap is reduced, making the device more cost-effective and economical. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the installation of a rapid repair and reinforcement device and a pressure pipeline according to one embodiment.
[0023] Figure 2 for Figure 1 The view at position AA in the middle.
[0024] Explanation of the reference numerals in the figure:
[0025] 1-Reinforcing ring; 2-Pipe cap; 3-Sealing structure; 31-Flange; 32-Flange cover; 4-Pressure pipeline; 5-Drain valve; 51-Valve stem. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0027] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0028] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of this application, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.
[0030] The technical solutions in this application will now be described with reference to the accompanying drawings.
[0031] Please refer to Figure 1 and Figure 2This embodiment provides a repair and reinforcement device for repairing and reinforcing defects at the drain valve 5 on a pressure pipeline 4. The repair and reinforcement device shown in the figure has been installed on the pressure pipeline 4. The repair and reinforcement device includes a reinforcing ring 1, a pipe cap 2, and a sealing structure 3. The reinforcing ring 1 is arranged around the top of the outer side of the pipe cap 2. The upper surface of the reinforcing ring 1 is an arc-shaped cylindrical surface that matches the outer surface of the pressure pipeline 4. From the direction of the pipeline cross-section, the two sides of the arc-shaped cylindrical surface have different heights. The inside of the pipe cap 2 is provided with a hollow part for accommodating the drain valve 5. The sealing structure 3 is installed at the bottom of the pipe cap 2 to seal the pipe cap 2.
[0032] like Figure 2 As shown, the drain valve 5 is installed at the center of the bottom of the pressure pipeline 4. When the drain valve 5 or the connecting pipe leaks, adversely affecting the pipeline operation, this device can be used to repair and reinforce the defective area. In specific use, the cap 2 of this device is placed on the drain valve 5, so that the upper surface of the reinforcing ring 1 at the top of the cap 2 is in contact with the pressure pipeline 4. Then, the reinforcing ring 1 is connected and fixed to the pressure pipeline 4 by welding. Finally, the cap 2 is sealed by the sealing structure 3 at the bottom, thereby completing the repair of the defective area.
[0033] It is worth mentioning that the small connecting pipe is a pipe interface in chemical equipment. It refers to a half pipe joint, branch pipe seat, branch pipe and other structures with a diameter of less than DN50mm that are directly drilled on the equipment body or pipe and connected by welding. It is usually used to connect auxiliary equipment such as safety accessories, instruments, filters, and valves. In this embodiment, it is installed on the pressure pipe 4 to connect the pipe to the condensate drain valve 5.
[0034] It should be noted that, since some pressure pipelines 4 transport flammable, explosive, or toxic substances, when repairing defective areas, the drain valve 5 is still leaking. If the cap 2 is sealed while welding the reinforcing ring 1, flammable gas may accumulate inside the cap 2, potentially causing an explosion, posing a safety risk. Therefore, before welding the reinforcing ring, the sealing structure should be disassembled or opened to allow the bottom of the cap 2 to remain open, preventing flammable gas from accumulating inside and ensuring safety. After the reinforcing ring is welded, the sealing structure should be closed to seal the cap, preventing substances from leaking out of the pipeline. The sealed cap 2 also meets the pipeline's pressure requirements and will not affect subsequent pipeline use, ensuring the effectiveness of the repair and reinforcement.
[0035] Furthermore, referring to Figure 2From the cross-section of the pipe, the two sides of the arc-shaped cylindrical surface of the reinforcing ring 1 have different heights, with the right side being higher than the left. This is not symmetrical about the vertical direction, therefore the device is eccentrically installed with the pipe. This is because the drain valve 5 is located at the bottom center of the pipe, and the drain valve 5 has a valve stem 51, which is horizontally positioned. Therefore, to allow room for the valve stem 51 and prevent it from touching the inner wall of the pipe cap 2, the reinforcing ring 1 makes the pipe cap 2 eccentrically installed with the pipe. If a symmetrical structure were used, the width of the pipe cap 2 would need to be increased to ensure that the valve stem 51 does not touch the inner wall of the pipe cap 2. Therefore, the eccentric installation structure design of this device can reduce the width of the pipe cap 2 while avoiding interference, thereby saving manufacturing materials and reducing costs. It should be noted that if the pipe cap 2 touches the drain valve 5, the interaction force between them may damage the pipe and affect the connection and fixation effect between the device and the pipe. Therefore, during installation, it is necessary to ensure that the side wall of the pipe cap 2 does not contact the drain valve 5.
[0036] Specifically, the installation direction of the reinforcing ring 1 depends on the orientation of the valve stem 51. In this embodiment, Figure 2 The valve stem 51 is located on the right side, therefore the higher side of the reinforcing ring 1 is located on the right side.
[0037] Preferably, the cap 2 is a cylindrical structure that runs vertically through the pipe, which facilitates production. After installation, when viewed from the cross-sectional direction of the pipe, the axis of the cap 2 does not intersect with the axis of the pressure pipe 4 (e.g., ...). Figure 2 (As shown), but the condensate drain valve 5 and its stem 51 are still located in the middle position inside the cap 2.
[0038] It is understandable that the reinforcing ring 1 is set around the pipe cap 2, so the reinforcing ring 1 has a hole that matches the pipe cap 2, and the reinforcing ring 1 and the pipe cap 2 are connected by welding.
[0039] In this embodiment, the reinforcing ring 1 is set around the pipe cap 2 with the same width. The reinforcing ring 1 is set around the pipe cap 2 with the same width to ensure the connection strength and uniform stress at all points. During installation, the outer side of the reinforcing ring 1 is connected to the pressure pipe 4 by welding. The welding operation is quick and convenient, and the connection has strong stability and long service life.
[0040] In this embodiment, the sealing structure 3 includes a flange 31 and a flange cover 32. The flange 31 is connected to the bottom of the pipe cap 2, and the flange cover 32 is installed at the bottom of the flange 31. The flange 31 and the flange cover 32 have simple structures and are easy to obtain. The flange 31 is connected to the bottom opening of the pipe cap 2, and the flange cover 32 is connected to the flange 31 by bolts to play a sealing role, preventing leakage inside the pipe cap 2 while blocking external impurities from entering.
[0041] Preferably, the flange 31 is a welding flange, which is not easily deformed and has good sealing performance. When used with the flange cover 32, it can effectively enhance the sealing effect on the pipe cap 2. The neck on the welding flange is connected to the bottom opening of the pipe cap 2 by welding.
[0042] Specifically, to prevent the accumulation of combustible gas, before welding the reinforcing ring 1 to the pipeline, the flange cover 32 is removed from the flange 31. At this time, the bottom of the pipe cap 2 is connected to the outside. After the reinforcing ring 1 is welded, the flange cover 32 is installed on the flange 31 to seal the pipe cap 2.
[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A repair and reinforcement device for a pressure pipe drain valve, characterized in that The device comprises a reinforcing ring, a pipe cap and a sealing structure, the reinforcing ring is arranged around the top of the pipe cap, the upper surface of the reinforcing ring is an arc cylindrical surface matched with the outer surface of the pressure pipeline, the height of the two sides of the arc cylindrical surface is different, the inside of the pipe cap is provided with a hollow part for accommodating the condensate valve, the sealing structure is installed at the bottom of the pipe cap for sealing the pipe cap.
2. The repair and reinforcement device for a pressure conduit drain valve according to claim 1, characterized in that The pipe cap is a cylindrical structure penetrating from top to bottom, the axis of the pipe cap is dislocated with the axis of the pressure pipeline.
3. The repair and reinforcement device for a pressure conduit drain valve according to claim 1, characterized in that, The reinforcing ring is arranged around the pipe cap with the same width.
4. The repair and reinforcement device for a pressure pipe drain valve according to claim 1, characterized by The sealing structure comprises a flange and a flange cover, the flange is connected with the bottom of the pipe cap, the flange cover is installed at the bottom of the flange.
5. The repair and reinforcement device for a pressure conduit drain valve according to claim 4, characterized in that The flange is a butt welded flange.
6. The repair and reinforcement device for pressure conduit drain valves according to claim 1, characterized in that, The reinforcing ring is connected with the pressure pipeline through welding.