Boiler, boiler blowdown pipe and its anti-impact flow guide pad iron device
By installing a flow guide pad on the boiler blowdown pipe, the inclined surface and flow guide ribs guide the medium to disperse and flow, solving the problems of pipe impact damage and maintenance difficulties in the traditional boiler blowdown system, and achieving pipe protection and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN WANRUI CARBON
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-28
AI Technical Summary
In traditional boiler blowdown systems, the blowdown medium generates localized high-frequency scouring and concentrated impacts on the pipes when flowing at high speed, leading to pipe wall wear and puncture, making repairs difficult and maintenance costs high.
An anti-impact flow guiding pad device is adopted. By embedding the flow guiding pad body and flow guiding ribs on the sewage pipe, the combination of the inclined surface and the flow guiding ribs guides the medium to flow in one direction, transforming local high-frequency scouring into dispersed flow and reducing the impact intensity.
It effectively protects sewage system pipes, extends service life, reduces inspection and maintenance costs, improves sewage discharge efficiency, and is suitable for the renovation of old systems.
Smart Images
Figure CN224566990U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of boiler equipment technology, and in particular to a boiler, a boiler blowdown pipe and its anti-impact guide pad device. Background Technology
[0002] During boiler operation, regular and continuous blowdown are key operations to ensure boiler water quality and safe operation. In traditional boiler blowdown systems, there is no impact-resistant structure in the blowdown pipe. The high-temperature and high-pressure blowdown medium (containing impurities and water vapor mixture) will cause local high-frequency scouring at specific parts of the blowdown pipe (such as the bottom of the interface) during the high-speed flow discharge process, resulting in concentrated impact and causing the following problems: (1) Pipe impact damage: The blowdown medium causes local high-frequency scouring and concentrated impact on specific areas of the blowdown main pipe, especially the bottom of the connection between the boiler blowdown branch pipe and the blowdown main pipe. Long-term use can easily cause pipe wall wear and pipe puncture, leading to leakage safety hazards; (2) Difficult maintenance: The puncture damage occurs at the bottom of the blowdown pipe, and the blowdown main pipe is close to the ground, limiting the maintenance space; (3) High maintenance cost: Repairing and replacing damaged pipes increases manpower and material costs. Utility Model Content
[0003] In view of this, the present invention provides an anti-impact guide pad device for boiler blowdown pipes that can solve or at least alleviate the above-mentioned problems, so as to avoid the problems of easy component puncture, difficult inspection and maintenance and high maintenance costs caused by local high-frequency scouring and concentrated impact of blowdown medium, realize the dispersed flow of medium, protect the blowdown system pipes and extend service life.
[0004] The present invention provides an anti-impact guide pad device for boiler blowdown pipes, which is embedded in an installation groove at one end of the blowdown pipe and clamped between adjacent blowdown pipes. The device includes a guide pad body, a protrusion, and guide ribs. The guide pad body is annular, with its outer periphery and one axial end respectively fitting into the installation groove. The other axial end of the guide pad body is flush with one end of the blowdown pipe having the installation groove. The protrusion is an annular protrusion on the inner side of the guide pad body, with the side of the protrusion adjacent to the other axial end being sloped. The guide ribs are positioned between the slope and the inner side of the guide pad body.
[0005] In some embodiments, the angle between the inclined surface and the radial direction of the guide pad body is 35°-45°.
[0006] In some embodiments, the guide ribs are triangular prisms.
[0007] In some embodiments, the first side of the guide rib is adjacent to the inclined surface, the second side is adjacent to the inner side of the guide pad body, and the third side is connected between the inclined surface and the inner side of the guide pad body.
[0008] In some embodiments, a plurality of the guide ribs are evenly distributed along the circumference of the guide pad body.
[0009] In addition, this utility model also provides a boiler blowdown pipe, including a first blowdown pipe, a second blowdown pipe connected to the first blowdown pipe, and the aforementioned anti-impact guide pad device installed between the first blowdown pipe and the second blowdown pipe, wherein the blowdown medium can flow from the first blowdown pipe to the second blowdown pipe.
[0010] In some embodiments, the first sewage pipe includes a first pipe body and a first flange, the first flange being disposed at one end of the first pipe body and extending radially outward along the first pipe body; the second sewage pipe includes a second pipe body and a second flange, the second flange being disposed at one end of the second pipe body and extending radially outward along the second pipe body.
[0011] In some embodiments, the second pipe body of the second sewage pipe has an installation groove on the inner side of one end near the second flange. The installation groove is recessed along the axial direction of the second pipe body. The anti-impact guide pad is embedded in the installation groove of the second sewage pipe and clamped between the installation groove of the second sewage pipe and the first pipe body. Alternatively, the first pipe body of the first sewage pipe has an installation groove on the inner side of one end near the first flange. The installation groove is recessed along the axial direction of the first pipe body. The anti-impact guide pad is embedded in the installation groove of the first sewage pipe and clamped between the installation groove of the first sewage pipe and the second pipe body.
[0012] In some embodiments, the inclined surface is tilted along the flow direction of the sewage medium.
[0013] This utility model also provides a boiler, including a boiler body and the aforementioned boiler drain pipe connected to the boiler body.
[0014] Compared with the prior art, the present invention has at least the following beneficial effects: 1. The anti-impact guide pad device for boiler blowdown pipes provided by this utility model can avoid the problems of easy component puncture, difficult inspection and maintenance and high maintenance costs caused by local high-frequency scouring and concentrated impact of blowdown medium. It can realize the dispersed flow of medium, protect the blowdown system pipes and extend service life.
[0015] 2. This utility model transforms the local high-frequency scouring and concentrated impact of the medium into a dispersed flow distributed along the circumference by using an inclined plane, thereby fundamentally reducing the impact intensity.
[0016] 3. This utility model guides the medium to flow in one direction by combining the inclined surface and the guide rib, thereby improving the sewage discharge efficiency.
[0017] 4. Users can directly open installation grooves on existing sewage pipes without pads to install the anti-impact guide pad device of this utility model. There is no need to replace the entire sewage pipe. The modification is simple, it is suitable for old and simplified sewage systems, extends the service life of components, and reduces maintenance costs.
[0018] 5. In this utility model, the angle between the inclined surface and the radial direction of the guide pad body is 35°-45°, which can guide the medium to flow in one direction and play a guiding role.
[0019] 6. In this utility model, the guide ribs can help disperse the impact load, guide the flow of the medium, and enhance the structural strength.
[0020] 7. In this utility model, the anti-impact guide pad is embedded in the installation groove of the sewage pipe, which is easy to install and replace, reduces maintenance difficulties, and reduces maintenance costs. Attached Figure Description
[0021] Figure 1 A perspective view of the boiler blowdown pipe of this utility model is shown, in which some components are omitted.
[0022] Figure 2 It shows Figure 1 The diagram shown is an exploded view of the boiler blowdown pipe.
[0023] Figure 3 It shows Figure 1 The diagram shows a three-dimensional view of the anti-impact guide pad device for the boiler blowdown pipe.
[0024] Figure 4 It shows Figure 3 The three-dimensional sectional view of the anti-impact guide pad device shown.
[0025] Figure 5 A schematic diagram of the boiler of this utility model is shown.
[0026] Explanation of reference numerals in the attached drawings: 300-boiler; 200-boiler body; 100-boiler drain pipe; 1-first drain pipe; 11-first pipe body; 12-first flange; 2-second drain pipe; 21-second pipe body; 22-second flange; 23-installation groove; 3-impact-resistant guide pad device; 31-guide pad body; 32-protrusion; 33-sloping surface; 34-guide rib. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0028] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0030] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.
[0031] In this utility model, terms such as "fixed connection," "connected," and "joined" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation of this utility model.
[0032] like Figure 1 As shown, an embodiment of the present invention provides a boiler blowdown pipe 100 including a first blowdown pipe 1, a second blowdown pipe 2 connected to the first blowdown pipe 1, and an anti-impact guide pad device 3 installed between the first blowdown pipe 1 and the second blowdown pipe 2. Preferably, the first blowdown pipe 1 is connected to the boiler body. Optionally, the first blowdown pipe 1 and the second blowdown pipe 2 can be connected to other pipes respectively. The blowdown medium can flow from the first blowdown pipe 1 to the second blowdown pipe 2.
[0033] Also refer to Figure 2The first sewage pipe 1 includes a first pipe body 11 and a first flange 12. The first flange 12 is disposed at one end of the first pipe body 11 and extends radially outward along the first pipe body 11. The second sewage pipe 2 includes a second pipe body 21 and a second flange 22. The second flange 22 is disposed at one end of the second pipe body 21 and extends radially outward along the second pipe body 21. The first flange 12 and the second flange 22 are respectively provided with multiple connecting holes. Connectors pass through the connecting holes to connect the first sewage pipe 1 and the second sewage pipe 2 together. The connectors can adopt existing structures in the prior art, which will not be specifically described here.
[0034] The second pipe body 21 of the second sewage pipe 2 has an installation groove 23 on its inner side near the end of the second flange 22. The installation groove 23 is recessed along the axial direction of the second pipe body 21. Alternatively, the first pipe body 11 of the first sewage pipe 1 has an installation groove on its inner side near the end of the first flange 12. The installation groove is recessed along the axial direction of the first pipe body 11. The anti-impact guide pad 3 is embedded in the installation groove 23 of the second sewage pipe 2 and is clamped between the installation groove 23 of the second sewage pipe 2 and the first pipe body 11. Alternatively, the anti-impact guide pad 3 is embedded in the installation groove of the first sewage pipe 1 and is clamped between the installation groove of the first sewage pipe 1 and the second pipe body 21. The following description uses the example of the anti-impact guide pad 3 being embedded in the installation groove 23 of the second sewage pipe 2.
[0035] Also refer to Figure 3 and Figure 4 The anti-impact flow guiding pad device 3 includes a flow guiding pad body 31, a protrusion 32, and a flow guiding rib 34. Preferably, the anti-impact flow guiding pad device 3 is made of high-temperature resistant carbon steel (e.g., Q345R). The cross-section of the anti-impact flow guiding pad device 3 is approximately T-shaped. The flow guiding pad body 31 is approximately annular, with its outer periphery and one axial end respectively attached to the mounting groove 23. The other axial end of the flow guiding pad body 31 is flush with one end of the second pipe body 21 adjacent to the first pipe body 11. Thus, when the first sewage pipe 1 and the second sewage pipe 2 are connected together, the anti-impact flow guiding pad device 3 is embedded in the mounting groove 23 of the second sewage pipe 2 and clamped between the mounting groove 23 of the second sewage pipe 2 and the first pipe body 11.
[0036] The protrusion 32 is an annular protrusion located on the inner side of the guide pad body 31. Preferably, the protrusion 32 extends radially inward along the guide pad body 31. The side of the protrusion 32 facing the first sewage pipe 1 is configured as a slope 33. Along the axial direction of the second sewage pipe 2, the slope 33 is inclined away from the first sewage pipe 1. The slope 33 can guide the unidirectional flow of the sewage medium, playing a guiding role, and transforming the local high-frequency scouring and concentrated impact of the medium into a dispersed flow distributed along the circumference, fundamentally reducing the impact intensity. Preferably, the angle between the slope 33 and the radial direction of the guide pad body 31 is 35°-45°.
[0037] A flow guide rib 34 is disposed between the inclined surface 33 and the inner side of the flow guide pad body 31. The flow guide rib 34 can help disperse impact loads and guide the flow of sewage medium. Preferably, the flow guide rib 34 is approximately triangular prism in shape. The first side of the flow guide rib 34 is adjacent to the inclined surface 33, the second side is adjacent to the inner side of the flow guide pad body 31, and the third side is connected between the inclined surface 33 and the inner side of the flow guide pad body 31. Multiple flow guide ribs 34 are evenly distributed along the circumference of the flow guide pad body 31. In this embodiment, the number of flow guide ribs 34 is 6. Preferably, the flow guide ribs 34 are installed between the inclined surface 33 and the inner side of the flow guide pad body 31 by welding.
[0038] Figure 5 A schematic diagram of the boiler 300 of this utility model is shown. The boiler 300 includes a boiler body 200 and a boiler blowdown pipe 100 connected to the boiler body 200. Preferably, the boiler blowdown pipe 100 is connected to the boiler body 200 through a first blowdown pipe 1.
[0039] When the sewage medium flows from the first sewage pipe 1 to the second sewage pipe 2, under the action of the anti-impact guiding pad device 3, the local high-frequency scouring and concentrated impact of the medium are transformed into a dispersed flow distributed along the circumference, thereby realizing the dispersed flow of the medium, protecting the sewage system pipes, and extending their service life.
[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An anti-impact guide pad device for boiler blowdown pipes, characterized in that, The device is fitted into an installation groove at one end of a sewage pipe and clamped between adjacent sewage pipes. It includes a guide pad body, a protrusion, and guide ribs. The guide pad body is annular, and its outer circumference and one axial end can respectively fit into the installation groove. The other axial end of the guide pad body is flush with one end of the sewage pipe with the installation groove. The protrusion is an annular protrusion on the inner side of the guide pad body, and the side of the protrusion near the other axial end is set as a slope. The guide ribs are disposed between the slope and the inner side of the guide pad body.
2. The anti-impact guide pad device for boiler blowdown pipes according to claim 1, characterized in that, The angle between the inclined surface and the radial direction of the guide pad body is 35°-45°.
3. The anti-impact guide pad device for boiler blowdown pipes according to claim 1 or 2, characterized in that, The guide ribs are triangular prisms.
4. The anti-impact guide pad device for boiler blowdown pipes according to claim 3, characterized in that, The first side of the guide rib is adjacent to the inclined surface, the second side is adjacent to the inner side of the guide pad body, and the third side is connected between the inclined surface and the inner side of the guide pad body.
5. The anti-impact guide pad device for boiler blowdown pipes according to claim 1 or 2, characterized in that, The multiple guide ribs are evenly distributed along the circumference of the guide pad body.
6. A boiler blowdown pipe, comprising a first blowdown pipe, a second blowdown pipe connected to the first blowdown pipe, and an anti-impact guide pad device installed between the first blowdown pipe and the second blowdown pipe, wherein the blowdown medium can flow from the first blowdown pipe to the second blowdown pipe, characterized in that, The anti-impact guide pad device is the anti-impact guide pad device for the boiler blowdown pipe according to any one of claims 1 to 5.
7. The boiler blowdown pipe according to claim 6, characterized in that, The first sewage pipe includes a first pipe body and a first flange, the first flange being disposed at one end of the first pipe body and extending outward radially along the first pipe body; the second sewage pipe includes a second pipe body and a second flange, the second flange being disposed at one end of the second pipe body and extending outward radially along the second pipe body.
8. The boiler blowdown pipe according to claim 7, characterized in that, The second sewage pipe has an installation groove on the inner side of one end of the second pipe body near the second flange. The installation groove is recessed along the axial direction of the second pipe body. The anti-impact guide pad is embedded in the installation groove of the second sewage pipe and clamped between the installation groove of the second sewage pipe and the first pipe body. Alternatively, the first sewage pipe has an installation groove on the inner side of one end of the first pipe body near the first flange. The installation groove is recessed along the axial direction of the first pipe body. The anti-impact guide pad is embedded in the installation groove of the first sewage pipe and clamped between the installation groove of the first sewage pipe and the second pipe body.
9. The boiler blowdown pipe according to claim 6, characterized in that, The inclined surface is tilted along the flow direction of the sewage medium.
10. A boiler, comprising a boiler body and a boiler blowdown pipe connected to the boiler body, characterized in that, The boiler blowdown pipe is the boiler blowdown pipe according to any one of claims 6 to 9.