A device for preventing the wear cover from falling off in heating surface tubes of boiler

Abstract

The present invention relates to the technical field of boilers, and discloses an anti-slip device for an anti-wear cover of a heating surface tube in a boiler, comprising: an anti-wear cover; an anti-slip device for fixing the anti-wear cover on a boiler pipeline; the anti-slip device comprises: a first semi-ring body, a first mounting portion is fixed to a fixed end of the first semi-ring body, and a second semi-ring body is hinged to a connecting end; a second semi-ring body is fixed to a fixed end of the second semi-ring body; a threaded through hole is provided on the second mounting part; a connecting component, the connecting component sequentially passes through the threaded through holes on the first mounting part and the second mounting part to connect the first semi-ring body and the second semi-ring body; a monitoring device, the monitoring device is used to detect the connection relationship between the connecting component and the first semi-ring body and the second semi-ring body; a controller, the controller is electrically connected to the monitoring device, and the controller is used to issue different early warning information. The present invention can improve the anti-slip effect of the anti-wear cover by real-time monitoring and detecting the connection relationship between the connecting component and the first semi-ring body and the second semi-ring body.

Description

Technical Field

[0001] The invention relates to the technical field of boilers, in particular to a device for preventing a wear cover of a heating surface tube in a boiler from falling off. Background Art

[0002] Anti-wear cover, also known as wear tile, anti-wear plate, anti-wear protective tile, anti-wear cover plate, anti-corrosion cover plate, boiler climbing pipe, anti-wear pressure plate, etc., is a commonly used accessory for the heating surface pipes of power station boilers. It is used in conjunction with clamps. Anti-wear covers are mainly used on the windward side of the heating surface pipes of the boiler's superheater, reheater, economizer, water-cooled wall pipes, and other four pipes. They are also used in induced draft fans. Their main function is to protect the windward side of the boiler pipes, reduce pipe wear, and increase the service life of the heating surface pipes. Anti-wear covers are special accessories for boilers. They are generally used mostly in power station boilers, less commonly in small boilers, and also used in some coal chemical industries.

[0003] However, in the vertical pipe row near the soot blower blowing track of the heating surface of the unit's boiler top, the originally installed anti-wear cover often falls off when hot, which easily causes the slag crusher at the bottom of the furnace to get stuck. Summary of the invention

[0004] The purpose of the present invention is to provide a device for preventing the wear cover of the heating surface tube in the boiler from falling off, so as to prevent the reinforced wear cover from falling off, so as to prevent the soot blowing steam from damaging the boiler pipe, and to avoid the heating surface of the boiler pipe from bursting and the unit from shutting down abnormally.

[0005] To achieve the above object, the present invention provides a device for preventing the wear cover of a heating surface tube in a boiler from falling off, comprising:

[0006] Wear cover;

[0007] An anti-slip device, the anti-slip device is used to fix the anti-wear cover on the boiler pipe;

[0008] The anti-falling device comprises:

[0009] A first semi-ring body, wherein a first mounting portion is fixed to a fixed end of the first semi-ring body and a connecting end is hinged to a second semi-ring body;

[0010] A second mounting portion is fixed to the fixed end of the second semi-ring body; the second mounting portion is provided with a threaded through hole;

[0011] A connecting assembly, wherein the connecting assembly sequentially passes through the threaded through holes on the first mounting portion and the second mounting portion to connect the first semi-ring body and the second semi-ring body;

[0012] A monitoring device, the monitoring device is used to detect the connection relationship between the connecting component and the first semi-ring body and the second semi-ring body;

[0013] A controller is electrically connected to the monitoring device, and is used to issue different warning information.

[0014] In one embodiment, the wear cover comprises:

[0015] A first groove is provided on the back of the anti-wear cover, a T-shaped groove is provided in the first groove, and a narrow side of the T-shaped groove is flush with the side surface of the anti-wear cover in a vertical direction;

[0016] An I-shaped clip strip, the I-shaped clip strip being clipped onto the T-shaped grooves of two adjacent anti-wear covers;

[0017] An anti-drop sheet is fixed on the first groove to prevent the I-shaped clip from falling off.

[0018] In one of the embodiments, the anti-wear cover is provided with micro protrusions.

[0019] In one embodiment, the length of the first mounting portion is greater than the wall thickness of the first semi-ring body, and the fixed end of the first semi-ring body is located in the middle of the connecting surface of the first mounting portion;

[0020] The length of the second mounting portion is greater than the wall thickness of the second semi-ring body, and the fixed end of the second semi-ring body is located in the middle of the connecting surface of the second mounting portion.

[0021] In one embodiment, anti-slip pads are provided at the joints between the first mounting portion and the second mounting portion and the boiler pipe.

[0022] In one embodiment, the connection assembly includes a cap screw and a nut.

[0023] In one embodiment, the monitoring device comprises:

[0024] A first warning member, the first warning member is fixed on the outer wall of the first semi-ring body and is located above the first mounting portion; the first warning member is used to detect the distance between the nut of the cap bolt and the connecting surface of the first mounting portion;

[0025] A second warning member, the second warning member is fixed on the outer wall of the second semi-ring body and is located below the second mounting portion; the second warning member is used to detect the distance between the nut and the connecting surface of the second mounting portion;

[0026] A third warning component is fixed on the outer wall of the second semi-ring body and is located below the second warning component; the third warning component is used to detect whether the nut falls off.

[0027] In one embodiment, the controller is used to issue different warning messages, including:

[0028] Obtaining a real-time distance H between the nut and the connection surface of the first mounting portion and a real-time distance h between the nut and the connection surface of the second mounting portion;

[0029] The warning level is determined based on the real-time distance H between the nut and the real-time distance h between the nut and the nut, and corresponding warning information is issued.

[0030] In one embodiment, determining the warning level based on the real-time distance H of the nut and the real-time distance h of the nut, and issuing corresponding warning information, includes:

[0031] Preset the preset nut warning line matrix H0, set H0=(H1, H2, H3, H4), where H1 is the first preset nut warning line, H2 is the second preset nut warning line, H3 is the third preset nut warning line, H4 is the fourth preset nut warning line, where H1<H2<H3<H4;

[0032] Preset a preset nut warning line matrix h0, set h0=(h1,h2,h3,h4), where h1 is the first preset nut warning line, h2 is the second preset nut warning line, h3 is the third preset nut warning line, and h4 is the fourth preset nut warning line, where h1<h2<h3<h4;

[0033] A preset warning level matrix G0 is pre-set, and G0 (G1, G2, G3, G4) is set, wherein G1 is the first preset warning level, G2 is the second preset warning level, G3 is the third preset warning level, G4 is the fourth preset warning level, and G1<G2<G3<G4;

[0034] The warning level G is set according to the relationship between the real-time distance H of the nut and each preset nut warning line and / or the relationship between the real-time distance h of the nut and each preset nut warning line:

[0035] When H

[0036] When H1≤H<H2 and / or h1≤h<h2, the second preset warning level G2 is selected as the warning level G;

[0037] When H2≤H<H3 and / or h2≤h<h3, the third preset warning level G3 is selected as the warning level G;

[0038] When H3≤H<H4 and / or h3≤h<h4, the fourth preset warning level G4 is selected as the warning level G.

[0039] ​In one of the embodiments, the controller is used to issue different warning information, and also includes: when the third warning component detects that the nut falls off, an emergency warning message is issued.

[0040] The present invention provides a device for preventing the wear cover of a heating surface tube in a boiler from falling off, which can monitor and detect the connection relationship between a connecting component and a first half ring body and a second half ring body in real time, thereby improving the anti-falling effect of the wear cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0042] Figure 1 is a schematic diagram of an anti-wear cover anti-slip device provided in an embodiment of the present invention;

[0043] Figure 2 is a schematic diagram of an anti-slip device provided in an embodiment of the present invention;

[0044] Figure 3 is a schematic diagram of the back connection of the anti-wear cover provided by an embodiment of the present invention;

[0045] Figure 4 The embodiment of the present invention provides Figure 3 A is an enlarged schematic diagram;

[0046] Figure 5 The embodiment of the present invention provides Figure 4 Schematic diagram of the cross section of AA;

[0047] Figure 6 is a schematic diagram of the front connection of the anti-wear cover provided by an embodiment of the present invention;

[0048] Among them: 1. boiler pipe; 10. anti-wear cover; 11. first groove; 12. T-shaped groove; 13. I-shaped clamping strip; 14. anti-slip sheet; 15. micro protrusion; 21. first semi-ring body; 22. first mounting part; 23. second semi-ring body; 24. second mounting part; 25. threaded through hole; 26. anti-slip pad; 31. cap bolt; 32. nut; 41. first warning part; 42. second warning part; 43. third warning part. DETAILED DESCRIPTION

[0049] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0050] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present application.

[0051] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0052] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] The vertical pipe row near the soot blower sweeping track of the heating surface of the boiler top of the unit, the originally installed anti-wear cover 10 often falls off when hot, causing the slag crusher at the bottom of the furnace to get stuck.

[0054] In order to avoid the above situation, Figure 1-6 As shown, this embodiment discloses a device for preventing the wear cover of a heating surface tube in a boiler from falling off, comprising:

[0055] Wear protection cover 10;

[0056] An anti-slip device, which is used to fix the anti-wear cover 10 on the boiler pipe 1;

[0057] The anti-slip device includes:

[0058] A first semi-ring body 21, wherein a first mounting portion 22 is fixed to a fixed end of the first semi-ring body 21, and a second semi-ring body 23 is hingedly connected to a connecting end;

[0059] A second mounting portion 24 is fixed to the fixed end of the second semi-ring body 23; the second mounting portion 24 is provided with a threaded through hole 25;

[0060] A connecting assembly, the connecting assembly sequentially passes through the threaded through holes 25 on the first mounting portion 22 and the second mounting portion 24 to connect the first half ring body 21 and the second half ring body 23;

[0061] A monitoring device, the monitoring device is used to detect the connection relationship between the connecting component and the first half ring body 21 and the second half ring body 23;

[0062] The controller is electrically connected to the monitoring device and is used to issue different warning information.

[0063] It is understandable that in the above embodiment, the anti-wear cover 10 is fixed to the boiler pipe 1 by the anti-slip device to prevent the reinforced anti-wear cover 10 from falling off and the soot-blowing steam from damaging the boiler pipe 1. The detachable connection is achieved by the connecting assembly, which is convenient for replacing the damaged anti-wear cover 10. Different early warning information is issued in time by the monitoring device and the controller to remind the staff to replace the anti-wear cover 10 or inspect the connecting assembly and the anti-slip device, and to know the status of the anti-slip device in time.

[0064] In some specific embodiments of the present application, the wear cover 10 includes:

[0065] A first groove 11 is formed on the back of the anti-wear cover 10, a T-shaped groove 12 is formed in the first groove 11, and a narrow side of the T-shaped groove 12 is flush with the side surface of the anti-wear cover 10 in a vertical direction;

[0066] An I-shaped clip 13, which is engaged with the T-shaped grooves 12 of two adjacent anti-wear covers 10;

[0067] The anti-dropping piece 14 is fixed in the first groove 11 to prevent the I-shaped clip 13 from dropping off.

[0068] It can be understood that, in the above embodiment, an I-shaped clip 13 is engaged in the I-shaped groove formed by splicing the T-grooves 12 of two adjacent anti-wear covers 10, and the I-shaped clip 13 can prevent the two spliced ​​anti-wear covers 10 from moving. Above the I-shaped clip 13, a removable anti-drop sheet 14 is fixed in the first groove 11 to prevent the I-shaped clip 13 from falling off.

[0069] The size of the anti-slip sheet 14 is slightly smaller than the size of the large first groove 11 formed by splicing two first grooves 11, and the height of the anti-slip sheet 14 is consistent with the lowest height of the first groove 11. In order to improve the anti-slip effect, an anti-slip and anti-wear sheet can be fixed on the end of the anti-slip sheet 14 that contacts the boiler pipe 1.

[0070] In some specific embodiments of the present application, the anti-wear cover 10 is provided with micro protrusions 15 .

[0071] It is understandable that in the above embodiment, the roots of the micro protrusions 15 will generate dust accumulation to isolate the wear of the heating surface of the anti-wear cover 10 by the dust carried in the flue gas, thereby protecting the anti-wear cover 10 and increasing the service life of the anti-wear cover 10. In addition, the micro protrusions 15 will decompose the hot air flow to prevent the heat wave from directly impacting the front side of the anti-wear cover 10, that is, the heating surface.

[0072] In some specific embodiments of the present application, the length of the first mounting portion 22 is greater than the wall thickness of the first semi-ring body 21, and the fixed end of the first semi-ring body 21 is located in the middle of the connecting surface of the first mounting portion 22;

[0073] The length of the second mounting portion 24 is greater than the wall thickness of the second semi-ring body 23 , and the fixed end of the second semi-ring body 23 is located in the middle of the connecting surface of the second mounting portion 24 .

[0074] In one embodiment, an anti-slip pad 26 is provided at the joint between the first mounting portion 22 and the second mounting portion 24 and the boiler pipe 1 .

[0075] It can be understood that in the above embodiment, the anti-slip pad 26 is resistant to high temperatures, elastic and compressible, and can be firmly fixed on the outer wall of the boiler pipe 1 to prevent the first mounting portion 22 and the second mounting portion 24 from sliding on the outer wall of the boiler pipe 1, thereby improving the anti-slip effect of the anti-slip device.

[0076] In one embodiment, the connection assembly includes a cap screw 31 and a nut 32 .

[0077] It can be understood that in the above embodiment, the connection is simple and convenient using the cap bolts 31 and the nuts 32 , and the cap bolts 31 and the nuts 32 are common hardware with low cost.

[0078] In one embodiment, the monitoring device includes: a first warning member 41, the first warning member 41 is fixed on the outer wall of the first semi-ring body 21, and is located above the first mounting portion 22; the first warning member 41 is used to detect the distance between the nut of the cap bolt 31 and the connecting surface of the first mounting portion 22;

[0079] A second warning member 42, which is fixed on the outer wall of the second semi-ring body 23 and is located below the second mounting portion 24; the second warning member 42 is used to detect the distance between the nut 32 and the connecting surface of the second mounting portion 24;

[0080] The third warning component 43 is fixed on the outer wall of the second semi-ring body 23 and is located below the second warning component 42 ; the third warning component 43 is used to detect whether the nut 32 falls off.

[0081] It can be understood that in the above embodiment, the first warning component 41 and the second warning component 42 can be height detectors; the first warning component 41 determines whether the cap bolt 31 and the nut 32 are loose by detecting the distance between the nut of the cap bolt 31 and the connecting surface of the first mounting part 22; the second warning component 42 determines whether the cap bolt 31 and the nut 32 are loose by detecting the distance between the nut 32 and the connecting surface of the second mounting part 24; the third warning component 43 can be provided with a weight detector, which can detect whether the nut 32 falls off when the nut 32 falls off.

[0082] In one embodiment, the controller is used to issue different warning information, including: obtaining a real-time distance H between the nut and the connection surface of the first mounting portion 22 and a real-time distance h between the nut 32 and the connection surface of the second mounting portion 24;

[0083] The warning level is determined based on the real-time distance H of the nut and the real-time distance h of the nut 32, and a corresponding warning message is issued.

[0084] It can be understood that in the above embodiment, the loosening of the cap bolt 31 and the nut 32 is not completed in a moment, and the loosening of the cap bolt 31 and the nut 32 is a long process. When the cap bolt 31 and the nut 32 are loosened, because the cap bolt 31 and the nut 32 shake, it may be that the nut of the cap bolt 31 moves up and down, or the nut 32 moves up and down along the bolt of the cap bolt 31. Therefore, the warning level is determined based on the real-time distance H of the nut and the real-time distance h of the nut 32, and the corresponding warning information is issued, which can accurately reflect the loosening result of the anti-detachment device. The staff can carry out timely maintenance through the warning information to prevent the anti-detachment device from falling off.

[0085] Specifically, the warning level is determined based on the real-time distance H of the nut and the real-time distance h of the nut 32, and corresponding warning information is issued, including:

[0086] Preset the preset nut warning line matrix H0, set H0=(H1, H2, H3, H4), where H1 is the first preset nut warning line, H2 is the second preset nut warning line, H3 is the third preset nut warning line, H4 is the fourth preset nut warning line, where H1<H2<H3<H4;

[0087] Preset the preset nut 32 warning line matrix h0, set h0=(h1,h2,h3,h4), where h1 is the first preset nut 32 warning line, h2 is the second preset nut 32 warning line, h3 is the third preset nut 32 warning line, h4 is the fourth preset nut 32 warning line, where h1<h2<h3<h4;

[0088] A preset warning level matrix G0 is pre-set, and G0 (G1, G2, G3, G4) is set, wherein G1 is the first preset warning level, G2 is the second preset warning level, G3 is the third preset warning level, G4 is the fourth preset warning level, and G1<G2<G3<G4;

[0089] The warning level G is set according to the relationship between the real-time distance H of the nut and each preset nut warning line and / or the relationship between the real-time distance h of the nut and each preset nut warning line:

[0090] When H

[0091] When H1≤H<H2 and / or h1≤h<h2, the second preset warning level G2 is selected as the warning level G;

[0092] When H2≤H<H3 and / or h2≤h<h3, the third preset warning level G3 is selected as the warning level G;

[0093] When H3≤H<H4 and / or h3≤h<h4, the fourth preset warning level G4 is selected as the warning level G.

[0094] It can be understood that in the above embodiment, the preset nut warning line matrix H0 is preset, and H0=(0.5, 1, 1.5, 2), wherein 0.5 is the first preset nut warning line, 1 is the second preset nut warning line, 1.5 is the third preset nut warning line, and 2 is the fourth preset nut warning line, wherein 0.5<1<1.5<2;

[0095] Preset the preset nut 32 warning line matrix h0, set h0=(0.5, 1, 1.5, 2), where 0.5 is the first preset nut 32 warning line, 1 is the second preset nut 32 warning line, 1.5 is the third preset nut 32 warning line, 2 is the fourth preset nut 32 warning line, where 0.5<1<1.5<2;

[0096] A preset warning level matrix G0 is pre-set, and G0 (G1, G2, G3, G4) is set, wherein G1 is the first preset warning level, G2 is the second preset warning level, G3 is the third preset warning level, G4 is the fourth preset warning level, and G1<G2<G3<G4;

[0097] The warning level G is set according to the relationship between the real-time distance H of the nut and each preset nut warning line:

[0098] When H<0.5 and / or h<0.5, the first preset warning level G1 is selected as the warning level G;

[0099] ​When 0.5≤H<1 and / or 0.5≤h<1, the second preset warning level G2 is selected as the warning level G;

[0100] When 1≤H<1.5 and / or 1≤h<1.5, the third preset warning level G3 is selected as the warning level G;

[0101] When 1.5≤H<2 and / or 1.5≤h<2, the fourth preset warning level G4 is selected as the warning level G.

[0102] It should be noted that the length units of H and h are centimeters, and the values ​​of H and h are absolute values. The greater the warning level, the easier it is to fall off. The warning levels between G1 and G4 are the process from the nut 32 starting to fall off the cap bolt 31 to the cap bolt 31 about to fall off.

[0103] In one embodiment, the controller is used to issue different warning information, and also includes: when the third warning component 43 detects that the nut 32 falls off, an emergency warning message is issued.

[0104] It can be understood that in the above embodiment, the danger emergency level of the emergency warning information is higher than the first preset warning level, the second preset warning level, the third preset warning level and the fourth preset warning level.

[0105] The present invention is provided with micro protrusions 15, which reduces the loss of the boiler pipe 1 caused by eddy currents generated when the sootblower blows soot, and because the anti-skid pad 26 has a certain elasticity, even if the anti-wear cover 10 is heated and separated from the boiler pipe 1 during use, the anti-slip device will not be damaged. The present invention can achieve the purpose of preventing the anti-wear cover 10 from falling off and effectively protecting the heated surface.

[0106] Those skilled in the art can understand that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for preventing the wear cover of a heating surface tube in a boiler from falling off, characterized in that: include: Wear cover; An anti-slip device, the anti-slip device is used to fix the anti-wear cover on the boiler pipe; The anti-falling device comprises: A first semi-ring body, wherein a first mounting portion is fixed to a fixed end of the first semi-ring body and a connecting end is hinged to a second semi-ring body; A second mounting portion is fixed to the fixed end of the second semi-ring body; the second mounting portion is provided with a threaded through hole; A connecting assembly, wherein the connecting assembly sequentially passes through the threaded through holes on the first mounting portion and the second mounting portion to connect the first semi-ring body and the second semi-ring body; A monitoring device, the monitoring device is used to detect the connection relationship between the connecting component and the first semi-ring body and the second semi-ring body; A controller, the controller is electrically connected to the monitoring device, and the controller is used to issue different warning information; The connecting assembly includes a cap bolt and a nut; The monitoring device comprises: A first warning member, the first warning member is fixed on the outer wall of the first semi-ring body and is located above the first mounting portion; the first warning member is used to detect the distance between the nut of the cap bolt and the connecting surface of the first mounting portion; A second warning member, the second warning member is fixed on the outer wall of the second semi-ring body and is located below the second mounting portion; the second warning member is used to detect the distance between the nut and the connecting surface of the second mounting portion; a third warning member, the third warning member being fixed on the outer wall of the second semi-ring body and being located below the second warning member; the third warning member being used to detect whether the nut falls off; The controller is used to issue different warning information, including: Obtaining a real-time distance H between the nut and the connection surface of the first mounting portion and a real-time distance h between the nut and the connection surface of the second mounting portion; Determine the warning level based on the real-time distance H between the nut and the real-time distance h between the nut and the nut, and issue a corresponding warning message; The controller is used to issue different warning information, and also includes: when the third warning component detects that the nut falls off, an emergency warning message is issued.

2. The anti-wear cover anti-detachment device for heating surface tubes in boilers according to claim 1, characterized in that: The anti-wear cover comprises: A first groove is provided on the back of the anti-wear cover, a T-shaped groove is provided in the first groove, and a narrow side of the T-shaped groove is flush with the side surface of the anti-wear cover in a vertical direction; An I-shaped clip strip, the I-shaped clip strip being clipped onto the T-shaped grooves of two adjacent anti-wear covers; An anti-drop sheet is fixed on the first groove to prevent the I-shaped clip from falling off.

3. The anti-wear cover anti-detachment device for heating surface tubes in boilers according to claim 1, characterized in that: The anti-wear cover is provided with micro protrusions.

4. The anti-wear cover anti-detachment device for heating surface tubes in boilers according to claim 1, characterized in that: The length of the first mounting portion is greater than the wall thickness of the first semi-ring body, and the fixed end of the first semi-ring body is located in the middle of the connecting surface of the first mounting portion; The length of the second mounting portion is greater than the wall thickness of the second semi-ring body, and the fixed end of the second semi-ring body is located in the middle of the connecting surface of the second mounting portion.

5. The anti-wear cover anti-detachment device for heating surface tubes in boilers according to claim 1, characterized in that: Anti-slip pads are provided at the contact points between the first mounting portion, the second mounting portion and the boiler pipe.

6. The anti-wear cover anti-detachment device for heating surface tubes in boilers according to claim 1, characterized in that: Based on the real-time distance H of the nut and the real-time distance h of the nut, a warning level is determined, and corresponding warning information is issued, including: Preset the preset nut warning line matrix H0, set H0=(H1, H2, H3, H4), where H1 is the first preset nut warning line, H2 is the second preset nut warning line, H3 is the third preset nut warning line, H4 is the fourth preset nut warning line, where H1<H2<H3<H4; Preset a preset nut warning line matrix h0, set h0=(h1,h2,h3,h4), where h1 is the first preset nut warning line, h2 is the second preset nut warning line, h3 is the third preset nut warning line, and h4 is the fourth preset nut warning line, where h1<h2<h3<h4; A preset warning level matrix G0 is pre-set, and G0 (G1, G2, G3, G4) is set, wherein G1 is the first preset warning level, G2 is the second preset warning level, G3 is the third preset warning level, G4 is the fourth preset warning level, and G1<G2<G3<G4; The warning level G is set according to the relationship between the real-time distance H of the nut and each preset nut warning line and / or the relationship between the real-time distance h of the nut and each preset nut warning line: When H<H1 and / or h<h1, the first preset warning level G1 is selected as the warning level G; When H1≤H<H2 and / or h1≤h<h2, the second preset warning level G2 is selected as the warning level G; When H2≤H<H3 and / or h2≤h<h3, the third preset warning level G3 is selected as the warning level G; When H3≤H<H4 and / or h3≤h<h4, the fourth preset warning level G4 is selected as the warning level G.

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