Anti-abrasion device for water cooling wall of boiler

Abstract

The utility model belongs to the technical field of boiler water cooling wall abrasion prevention, and particularly relates to a boiler water cooling wall abrasion prevention device which comprises a water cooling pipe and further comprises a protective cover arranged on the surface of the water cooling pipe. The fixed cover is arranged on the surface of the water cooling pipe, and the fixed cover is connected to the protective cover; and the heat conducting plate is arranged on the surface of the protective cover. The inner bottom of the protective cover is attached to the surface of the water-cooled pipe, so that heat conduction efficiency is improved, smoke is prevented from being directly blown to the surface of the water-cooled pipe, burning smoke is prevented from corroding and rubbing the surface of the water-cooled pipe, the fixed cover bottom is attached to the other side of the water-cooled pipe, the protective cover is connected, the protective cover is fixed to the surface of the water-cooled pipe, and the heat conduction plate receives hot air in a large area. The heat-conducting plate is connected to the protective cover, so that the heat-conducting efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of boiler water-cooled wall anti-wear, in particular to a boiler water-cooled wall anti-wear device. Background Art

[0002] Boilers, as heat energy conversion equipment, are widely used in the power, chemical and other industries. The water-cooled wall is an important component of the boiler. It is easily worn out due to long-term erosion by high-temperature flue gas, which affects the safe operation of the boiler. At present, commonly used anti-wear measures include coating protection and material upgrades, but these methods have problems such as insufficient wear resistance and high cost. Existing water-cooled wall anti-wear technologies mostly use wear-resistant coatings or increase wall thickness to improve wear resistance, but these measures have limited effects in long-term high-temperature environments and may increase the manufacturing and operating costs of the boiler. Wear-resistant coatings are prone to failure at high temperatures, and increasing the wall thickness will affect the heat conduction efficiency, and neither can fundamentally solve the long-term anti-wear problem of the water-cooled wall.

[0003] Chinese patent publication number CN116336452A discloses an anti-wear device for boiler water-wall pipes. The water-wall pipes are located on the inner side of the wear plate, which protects the windward side of the water-wall pipes. A set of evenly spaced ball sockets are located within the wear plate, each containing a round ball that can rotate within the sockets. When flue gas blows onto the balls on the wear plate, the balls rotate on the sockets, and the balls always rotate within the sockets. This device causes the flue gas to blow the balls, causing them to roll on the sockets. This changes the sliding friction caused by the flue gas blowing onto the wear plate to rolling friction with the balls. Rolling friction is much less than sliding friction, thus greatly reducing the wear on the wear plate caused by flue gas, thereby extending the service life of the wear plate. However, the fixed plate in this device reduces the heat transfer efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a boiler water wall anti-wear device to improve the heat conduction efficiency in response to the above-mentioned technical problems.

[0005] In view of this, the utility model provides a boiler water-cooled wall anti-wear device, including a water-cooling pipe, and also includes: a protective cover, the protection is arranged on the surface of the water-cooling pipe; a fixed cover, the fixed cover is arranged on the surface of the water-cooling pipe, the fixed cover is connected to the protective cover; and a heat conducting plate, the heat conducting plate is arranged on the surface of the protective cover.

[0006] In this technical solution, the inner bottom of the protective cover is attached to the surface of the water-cooling pipe, which not only improves the heat conduction efficiency, but also prevents the flue gas from blowing directly to the surface of the water-cooling pipe, avoiding the corrosion and friction of the burning flue gas on the surface of the water-cooling pipe. The bottom of the fixed cover is attached to the other side of the water-cooling pipe, and the protective cover is connected to fix the protective cover on the surface of the water-cooling pipe. The heat conduction plate receives hot air over a large area, and the heat conduction plate is connected to the protective cover to improve the heat conduction efficiency.

[0007] In the above technical solution, further, the heat conducting plates are arranged on the protective cover in a linear array along the length direction of the protective cover, and the angle between the heat conducting plates and the protective cover is sixty degrees.

[0008] In this technical solution, a large number of heat-conducting plates are arranged on the surface of the protective cover, which improves the heat conduction efficiency of the protective cover. The heat-conducting plates are tilted down sixty degrees to better absorb heat and reduce the falling of soot on the protective cover, avoiding excessive accumulation of dust on the surface, which reduces the heat absorption efficiency of the heat pipe.

[0009] In the above technical solution, further, first connecting rings are symmetrically provided on the top and bottom of the heat conducting plate, the first connecting ring is coaxially connected to a second connecting ring, and the second connecting ring is fixedly provided on the fixed cover.

[0010] In the above technical solution, further, a fixing bolt is connected between the first connecting ring and the second connecting ring, and the fixing bolt is threadedly connected with a fixing nut.

[0011] In this technical solution, the first connecting ring and the second connecting ring are fixed by fixing bolts and fixing nuts, and the fixing cover fixes the protective cover by the first connecting ring and the second connecting ring to prevent it from falling off inside the boiler. The device can be recycled and reused by removing the fixing bolts and nuts, avoiding material waste.

[0012] In the above technical solution, further, connecting plates are provided on both sides of the protective cover.

[0013] In this technical solution, the protective covers are connected to each other through connecting plates. The protective covers and guards are not only detachable, but can also be laid on the water-cooled wall in large quantities.

[0014] In the above technical solution, further, a trapezoidal protrusion is fixedly provided on the connecting plate, a trapezoidal groove is formed between two of the trapezoidal protrusions, and the trapezoidal protrusion and the trapezoidal groove correspond to each other.

[0015] In this technical solution, the mutual engagement of the trapezoidal protrusions and the trapezoidal grooves not only connects the protective covers to each other, but also improves the airtightness between the connecting plates and the heat absorption of the protective covers.

[0016] In the above technical solution, further, one side of the fixed cover is semicircular and the other side is rectangular.

[0017] In the above technical solution, the semicircular arc on one side of the fixed cover fits against the wall of the water-cooling pipe to provide insulation for the water-cooling pipe, and the rectangular shape on the other side of the fixed cover contacts the outside world to provide insulation between the water-cooling pipe and the outside world.

[0018] The beneficial effects of the utility model are:

[0019] 1. The heat conduction plate is set to improve the heat conduction efficiency of the protective cover. The heat conduction plate is tilted down by 60 degrees to better absorb heat and reduce the soot falling on the protective cover, avoiding excessive accumulation of dust on the surface and reducing the heat absorption efficiency of the heat pipe.

[0020] 2. By setting up the connecting plate, it can be prevented from falling off inside the boiler. The device can be recycled and reused by removing the fixing bolts and nuts, thus avoiding material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 It is a diagram of the exploded structure;

[0023] Figure 3 It is a diagram of the protective cover structure;

[0024] Figure 4 It is a structural diagram of the fixed cover;

[0025] The marks in the figure are:

[0026] 1. Protective cover; 2. Heat conducting plate; 3. Fixed cover; 4. Fixed bolt; 5. Connecting plate; 6. Fixed nut; 7. First connecting ring; 8. Trapezoidal protrusion; 9. Trapezoidal groove; 10. Second connecting ring; 301. Rectangle; 302. Semicircular arc. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0028] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0029] It should be noted that the terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0030] It should be noted that, in the description of this application, the directions or positional relationships indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional terms do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional terms "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0031] It should be noted that, in the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0032] Example 1:

[0033] This embodiment provides a boiler water wall anti-wear device, such as Figure 1 As shown, it includes a water-cooling pipe, and also includes: a protective cover 1, which is provided on the surface of the water-cooling pipe; a fixed cover 3, which is provided on the surface of the water-cooling pipe and connected to the protective cover 1; and a heat conducting plate 2, which is provided on the surface of the protective cover 1. The bottom of the inner part of the protective cover 1 is attached to the surface of the water-cooling pipe, which not only improves the heat conduction efficiency, but also prevents the flue gas from blowing directly onto the surface of the water-cooling pipe, avoiding the corrosion and friction of the burning flue gas on the surface of the water-cooling pipe. The bottom of the fixed cover 3 is attached to the other side of the water-cooling pipe, connected to the protective cover 1, and the protective cover 1 is fixed to the surface of the water-cooling pipe. The heat conducting plate 2 receives hot air over a large area, and the heat conducting plate 2 is connected to the protective cover 1 to improve the heat conduction efficiency.

[0034] like Figure 3 As shown, heat conducting plates 2 are arranged in a linear array along the length of the protective cover 1, with a 60-degree angle between the heat conducting plates 2 and the protective cover 1. The large number of heat conducting plates 2 arranged on the surface of the protective cover 1 improves the heat conduction efficiency of the protective cover 1. The heat conducting plates 2 are tilted downward 60 degrees to better absorb heat and reduce soot falling on the protective cover 1, preventing excessive dust accumulation on the surface and reducing the heat absorption efficiency of the heat pipe.

[0035] like Figure 2As shown, first connecting rings 7 are symmetrically arranged at the top and bottom of the heat conducting plate 2. The first connecting ring 7 is coaxially connected to a second connecting ring 10, which is fixedly mounted on the fixed cover 3. A fixing bolt 4 is connected between the first and second connecting rings 7, 10, and a fixing nut 6 is threadedly connected to the fixing bolt 4. The first and second connecting rings 7, 10 are fixed together by the fixing bolt 4 and the fixing nut 6. The first and second connecting rings 7, 10 are fixed together, and the fixed cover 3 is fixed to the protective cover 1 through the first and second connecting rings 7, 10 to prevent it from falling off inside the boiler. The device can be recycled and reused by removing the fixing bolts 4 and nuts, avoiding material waste.

[0036] like Figure 3 As shown, connecting plates 5 are provided on both sides of the protective cover 1. The protective covers 1 are connected to each other through the connecting plates 5. The protective covers 1 and the protective cover are not only detachable, but can also be laid on the water-cooled wall in large quantities. Trapezoidal protrusions 8 are fixedly provided on the connecting plates 5, and a trapezoidal groove 9 is formed between the two trapezoidal protrusions 8. The trapezoidal protrusions 8 and the trapezoidal grooves 9 correspond to each other. The mutual engagement of the trapezoidal protrusions 8 and the trapezoidal grooves 9 not only connects the protective covers 1 to each other, but also improves the airtightness between the connecting plates 5 and the heat absorption of the protective cover 1.

[0037] like Figure 4 As shown, one side of the fixed cover 3 is a semicircular arc 302, and the other side is a rectangular 301. The semicircular arc 302 on one side of the fixed cover 3 fits against the wall of the water-cooling pipe to keep it warm, while the rectangular 301 on the other side of the fixed cover 3 contacts the outside world, providing thermal insulation between the water-cooling pipe and the outside world.

[0038] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A boiler water wall anti-wear device, comprising a water cooling tube, characterized in that , also includes: A protective cover (1), the protective cover being arranged on the surface of the water cooling pipe; A fixed cover (3), the fixed cover (3) being arranged on the surface of the water-cooling pipe, and the fixed cover (3) being connected to the protective cover (1); A heat conducting plate (2), wherein the heat conducting plate (2) is arranged on the surface of the protective cover (1).

2. A boiler water wall anti-wear device according to claim 1, characterized in that: The heat conducting plates (2) are arranged on the protective cover (1) in a linear array along the length direction of the protective cover (1), and the angle between the heat conducting plates (2) and the protective cover (1) is sixty degrees.

3. The boiler water wall anti-wear device according to claim 2, characterized in that: The top and bottom of the heat conducting plate (2) are symmetrically provided with first connecting rings (7), the first connecting ring (7) is coaxially connected to a second connecting ring (10), and the second connecting ring (10) is fixedly provided on the fixed cover (3).

4. The boiler water wall anti-wear device according to claim 3, characterized in that: A fixing bolt (4) is connected between the first connecting ring (7) and the second connecting ring (10), and the fixing bolt (4) is threadedly connected to a fixing nut (6).

5. The boiler water wall anti-wear device according to claim 2, characterized in that: Connecting plates (5) are provided on both sides of the protective cover (1).

6. The boiler water wall anti-wear device according to claim 5, characterized in that: A trapezoidal protrusion (8) is fixedly provided on the connecting plate (5), a trapezoidal groove (9) is formed between the two trapezoidal protrusions (8), and the trapezoidal protrusion (8) and the trapezoidal groove (9) correspond to each other.

7. The boiler water wall anti-wear device according to claim 1, characterized in that: One side of the fixed cover (3) is in a semicircular arc shape (302), and the other side is in a rectangular shape (301).

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