Heating surface anti-abrasion flow guide device, boiler and application in thermal power generation equipment
By using the L-shaped flow guide structure in the thermal power boiler, the problem of easy wear on the heated surface is solved, efficient flow guide and wear protection are achieved, maintenance costs are reduced and the stability of boiler operation is improved.
Patent Information
- Application Number
- CN202510620874.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2025-08-01
AI Technical Summary
The boiler heated surface of the thermal power plant is prone to coking and ash accumulation, and is easily worn when blown, resulting in low working efficiency and high daily maintenance costs.
It adopts an L-shaped flow guide structure, which is connected to the pipe row and the suspension pipe respectively, to guide the flow and prevent coking and ash accumulation, and to protect the heated surface when blowing soot. Only by replacing the flow guide can we solve the wear problem.
Effectively prevent coking ash accumulation, protect the heating surface, improve work efficiency, reduce maintenance costs, and ensure the safe and stable operation of the boiler.
Smart Images
Figure CN120402883A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of energy power equipment, and particularly relates to an anti-abrasion and flow guiding device for heating surfaces, and its applications in boilers and thermal power generation equipment. Background Art
[0002] A thermal power plant is a factory that uses combustibles (such as coal) as fuel to produce electric energy. Its basic production process is: the fuel heats water to generate steam during combustion, converting the chemical energy of the fuel into heat energy. The steam pressure drives the steam turbine to rotate, and then the steam turbine drives the generator to rotate, converting mechanical energy into electric energy. During the energy conversion process, the boiler is an important thermal energy power equipment, and the heating surface of the boiler mainly refers to the medium surface that absorbs and transfers heat.
[0003] In the prior art, the heating surfaces of boilers in thermal power plants are prone to coking and ash accumulation. When blowing ash, eddies are formed by steam at the pipe clamps and suspension pipes. Moreover, the large amount of sand in the coal quality of the coal-fired fuel causes the heating surface pipes to be blown and thinned, and it is easy to occur non-stop accidents of four-pipe leakage. It is necessary to replace a large area of the over-standard pipes of the heating surface during the boiler shutdown for maintenance, which affects the working efficiency of the boiler and increases the daily maintenance cost of the boiler.
[0004] Therefore, developing an anti-abrasion and flow guiding device for heating surfaces, and its applications in boilers and thermal power generation equipment, to solve the technical defects of low working efficiency and high daily maintenance cost caused by the wear of the heating surfaces of boilers in thermal power plants, has become an urgent problem to be solved by those skilled in the art. Summary of the Invention
[0005] Based on this, it is necessary to provide an anti-abrasion and flow guiding device for heating surfaces, and its applications in boilers and thermal power generation equipment, aiming at the technical defects of low working efficiency and high daily maintenance cost caused by the wear of the heating surfaces of boilers in the prior art.
[0006] This application provides an anti-abrasion and flow guiding device for heating surfaces. The anti-abrasion and flow guiding device includes: an anti-abrasion and flow guiding main body, which is an L-shaped flow guiding member, and the two ends of the L-shaped flow guiding member are respectively connected to the tube bank and the suspension pipe.
[0007] In one embodiment, the L-shaped flow guiding member is a stainless steel flow guiding member.
[0008] In one embodiment, the thickness of the L-shaped flow guiding member is 4 mm.
[0009] In one embodiment, the length of the L-shaped flow guiding member is 1400 mm.
[0010] In one embodiment, the width of the L-shaped flow guiding member is 200 mm.
[0011] In one embodiment, the height of the L-shaped flow guide is 150 mm.
[0012] In one embodiment, an anti-wear layer structure is provided on the upper surface of the L-shaped flow guide.
[0013] In one embodiment, the L-shaped flow guide is welded to the tube bank, and / or the L-shaped flow guide is welded to the suspension tube.
[0014] The present application also provides a boiler, which includes a boiler main body and the anti-wear flow guide device described in any one of the above, and the anti-wear flow guide device is provided on the heating surface inside the boiler main body.
[0015] The present application also provides an application of the heating surface anti-wear flow guide device described in any one of the above or the above boiler in a thermal power generation device.
[0016] In summary, the present application provides a heating surface anti-wear flow guide device, which includes: an anti-wear flow guide main body, the anti-wear flow guide main body is an L-shaped flow guide, and both ends of the L-shaped flow guide are respectively connected to the tube bank and the suspension tube. The present application also provides a boiler, which includes a boiler main body and the above anti-wear flow guide device, and the anti-wear flow guide device is provided on the heating surface inside the boiler main body. The present application also provides an application of the above heating surface anti-wear flow guide device or the above boiler in a thermal power generation device. In the technical solution provided by the present application, aiming at the problems that the heating surface inside the thermal power generation boiler is prone to coking and ash accumulation and is easily worn during soot blowing, an L-shaped flow guide structure is proposed. On the one hand, it can quickly guide the coking and ash accumulation on the heating surface to prevent aggregation, and on the other hand, it can protect the heating surface during soot blowing. Even if it is worn, only the L-shaped flow guide needs to be replaced; it solves the technical defects of low working efficiency and high daily maintenance cost caused by the wear of the heating surface of the boiler in the prior art. Description of the Drawings
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.
[0018] Figure 1 It is a schematic structural diagram of a heating surface anti-wear flow guide device in the technical solution provided by the embodiment of the present application. Detailed Embodiments
[0019] The embodiment of the present application provides an application of a heat-absorbing surface anti-abrasion diversion device, a boiler and a thermal power generation device, which is used to solve the technical defects of low working efficiency and high daily maintenance cost caused by the abrasion of the heat-absorbing surface of the boiler in a thermal power plant in the prior art.
[0020] In order to make the above objects, features and advantages of the present application more obvious and understandable, the following will describe the specific embodiments of the present application in detail with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.
[0021] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.
[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0023] In the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0024] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.
[0025] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.
[0026] Please refer to Figure 1 , an anti-abrasion diversion device for a heating surface provided by an embodiment of the present application includes: an anti-abrasion diversion main body, the anti-abrasion diversion main body is an L-shaped diversion member, and the two ends of the L-shaped diversion member are respectively connected to a tube bank and a suspension tube.
[0027] In the technical solution provided by the embodiment of the present application, aiming at the problems that the heating surface inside a thermal power generation boiler is prone to coking and ash accumulation and is easily worn during soot blowing, the structure of the L-shaped diversion member is proposed. After the two ends of the L-shaped diversion member are respectively connected to the tube bank and the suspension tube, when the heating surface is heated, on the one hand, the L-shaped diversion member can quickly divert the coking and ash accumulation on the heating surface to prevent it from gathering. On the other hand, the L-shaped diversion member can play a protective role for the heating surface during soot blowing. During soot blowing, the L-shaped diversion member is worn first, and other structures of the heating surface will not be worn. Even if the L-shaped diversion member is worn, only the L-shaped diversion member needs to be replaced, and other structures of the heating surface do not need to be replaced. Through an anti-abrasion diversion device for a heating surface provided by the embodiment of the present application, the L-shaped diversion member plays the effects of diversion and anti-abrasion protection, solves the technical defects of low working efficiency and high daily maintenance cost caused by the wear of the heating surface of the boiler in a thermal power plant in the prior art, and ensures the long-term safe and stable operation of the boiler in a thermal power plant.
[0028] To further optimize the technical solution, since the working environment of the L-shaped flow guide is a high-temperature working environment, in order to effectively ensure the structural stability of the L-shaped flow guide during operation and prevent it from being damaged or deformed, and to ensure that it can achieve a stable flow guiding and abrasion prevention effect, in the technical solution provided by the embodiments of the present application, the L-shaped flow guide is a stainless steel flow guide. The stainless steel flow guide has the advantages of high temperature resistance and wear resistance, effectively extending the service life of the L-shaped flow guide.
[0029] In the technical solution provided by the embodiments of the present application, considering that the L-shaped flow guide can play a role in blocking and protecting the heating surface, and can effectively play a role in guiding the coking and ash accumulation on the heating surface, considering the above requirements comprehensively, in a heating surface abrasion prevention and flow guiding device provided by the embodiments of the present application, the thickness of the L-shaped flow guide is 4 mm.
[0030] Similarly, in a heating surface abrasion prevention and flow guiding device provided by the embodiments of the present application, the length of the L-shaped flow guide is 1400 mm.
[0031] Similarly, in a heating surface abrasion prevention and flow guiding device provided by the embodiments of the present application, the width of the L-shaped flow guide is 200 mm.
[0032] Similarly, in a heating surface abrasion prevention and flow guiding device provided by the embodiments of the present application, the height of the L-shaped flow guide is 150 mm.
[0033] Similarly, in a heating surface abrasion prevention and flow guiding device provided by the embodiments of the present application, the upper surface of the L-shaped flow guide is provided with an abrasion prevention layer structure.
[0034] To further optimize the technical solution, in a heating surface abrasion prevention and flow guiding device provided by the embodiments of the present application, the L-shaped flow guide is welded to the tube bank and / or the L-shaped flow guide is welded to the suspension tube. The welded connection structure can ensure the stability of the connection structure and is convenient for disassembly and replacement during replacement.
[0035] The present application also provides a boiler, including a boiler main body and the above-mentioned abrasion prevention and flow guiding device, and the abrasion prevention and flow guiding device is provided on the heating surface inside the boiler main body. Installing the abrasion prevention and flow guiding device on the heating surface of the boiler plays a role in guiding the ash coking and protecting the heating surface, effectively extending the service life of the boiler, preventing the normal operation of the boiler from being affected due to the replacement of boiler components, and improving the working efficiency of the boiler.
[0036] The heating surface abrasion prevention and flow guiding device and the boiler provided by the present application have the effect of reducing ash coking and effectively avoiding the problem of heating surface abrasion caused by soot blowing. At the same time, the heating surface abrasion prevention and flow guiding device can also play a role in protecting the heating surface. Even if abrasion occurs, only the L-shaped flow guide needs to be replaced, and it can be widely promoted and applied to thermal power generation equipment.
[0037] In summary, the present application provides a wear prevention and flow guiding device for a heating surface. The wear prevention and flow guiding device for the heating surface includes: a wear prevention and flow guiding main body, which is an L-shaped flow guiding member, and both ends of the L-shaped flow guiding member are respectively connected to a tube bank and a suspension tube. The present application also provides a boiler, which includes a boiler main body and the above-mentioned wear prevention and flow guiding device, and the wear prevention and flow guiding device is provided on the heating surface inside the boiler main body. The present application also provides an application of the above-mentioned wear prevention and flow guiding device for the heating surface or the above-mentioned boiler in a thermal power generation device. In the technical solution provided by the present application, in view of the problems that the heating surface inside a thermal power generation boiler is prone to coking and ash accumulation and is easily worn during soot blowing, an L-shaped flow guiding member structure is proposed. On the one hand, it can quickly guide the coking and ash accumulation on the heating surface to prevent aggregation. On the other hand, it can play a protective role for the heating surface during soot blowing. Even if it is worn, only the L-shaped flow guiding member needs to be replaced; the technical defects of low working efficiency and high daily maintenance cost caused by the wear of the heating surface of a boiler in the prior art are solved.
[0038] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification. At the same time, other embodiments can be derived from the above-described embodiments, so that structural and logical substitutions and changes can be made without departing from the scope of the present disclosure.
[0039] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.
Claims
1. A heat-absorbing surface anti-wear flow guiding device, characterized in that, The anti-abrasion diversion device for the heating surface comprises: an anti-abrasion diversion main body, which is an L-shaped diversion member, and two ends of the L-shaped diversion member are respectively connected to a tube bank and a suspension tube.
2. The anti-wear flow guiding device for the heating surface according to claim 1, wherein, The L-shaped diversion member is a stainless steel diversion member.
3. The anti-wear flow guiding device for the heating surface according to claim 1 or 2, characterized in that, The thickness of the L-shaped diversion member is 4 mm.
4. The anti-abrasion flow guiding device for the heating surface according to claim 1 or 2, characterized in that The length of the L-shaped diversion member is 1400 mm.
5. The anti-wear flow guiding device for a heating surface according to claim 1 or 2, characterized in that, The width of the L-shaped diversion member is 200 mm.
6. The anti-wear flow guiding device for the heating surface according to claim 1 or 2, characterized in that The height of the L-shaped diversion member is 150 mm.
7. The anti-abrasion flow guiding device for a heating surface according to any one of claims 1 to 6, characterized in that An anti-abrasion layer structure is provided on the upper surface of the L-shaped diversion member.
8. The anti-wear flow guiding device for the heating surface according to claim 1, wherein, The L-shaped diversion member is connected to the tube bank by welding, and / or the L-shaped diversion member is connected to the suspension tube by welding.
9. A boiler, characterized in that, The boiler comprises a boiler main body and the anti-abrasion diversion device according to any one of claims 1 to 8, and the anti-abrasion diversion device is provided on the heating surface inside the boiler main body.
10. An application of the anti-abrasion diversion device for the heating surface according to any one of claims 1 to 8 or the boiler according to claim 9 in a thermal power generation device.