Plate type superheater tube clamping device

Abstract

The utility model discloses a platen superheater tube clamping device, which relates to the technical field of superheaters and comprises a superheater tube, a first tube clamp and a second tube clamp. The first pipe clamp and the second pipe clamp are each integrally provided with a plurality of semicircles in the length direction. A plurality of mounting holes are formed between the plurality of adjacent semicircles on the first pipe clamp and the second pipe clamp; the first pipe clamp and the second pipe clamp are reversely arranged; a plurality of clamping parts are formed between the plurality of semicircles on the first pipe clamp and the plurality of semicircles on the second pipe clamp, and the plurality of clamping parts are used for clamping the superheater pipe; the inner peripheral surface of the clamping part is in surface contact with the outer peripheral surface of the superheater tube. According to the platen superheater tube clamping device, the stress balance degree of the pipelines is improved, vibration and deformation of the superheater tube in the working process are reduced, the risks of local abrasion between the pipelines and possible leakage shutdown are avoided, the clamping strength is improved, the safety and stability of the superheater tube are kept, and therefore the operation efficiency of a superheater is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of superheaters, in particular to a screen-type superheater tube clamping device. Background Art

[0002] The boiler platen superheater is a common heat exchange device in steam boilers, which is used to transfer the heat energy of high-temperature combustion gas to the working medium. Due to the influence of factors such as thermal expansion and vibration of high-temperature combustion gas, the superheater pipeline often faces some challenges in operation. For example, under high temperature and high pressure conditions, the pipeline system is prone to vibration, resulting in loosening and displacement of the pipeline.

[0003] In the related art, card-type sliding pairs are welded on both sides of the tube walls of multiple superheater tubes to connect adjacent superheater pipes to avoid vibration generated by the superheater during operation. However, the sliding pairs are very easy to disengage or fall off during operation, causing fly ash to wear the tube walls and increase the risk of pipeline leakage or bursting. In addition, the sliding pairs are welded on the tubes, and welding thermal stress, undercutting, overburning and other defects are inevitable. In particular, repeated welding after falling off will make the above defects more prominent. Utility Model Content

[0004] The utility model aims to provide a platen-type superheater tube clamping device to solve at least one aspect of the problems and defects raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A platen-type superheater tube clamping device comprises a superheater tube, and further comprises:

[0007] A first pipe clamp and a second pipe clamp;

[0008] The first pipe clamp and the second pipe clamp are respectively integrally provided with a plurality of semicircular arcs along the length direction;

[0009] A plurality of mounting holes are provided between a plurality of adjacent semicircular arcs on the first pipe clamp and the second pipe clamp;

[0010] The first pipe clamp and the second pipe clamp are invertedly arranged;

[0011] A plurality of clamping parts are formed between the plurality of semicircular arcs on the first tube clamp and the plurality of semicircular arcs on the second tube clamp, and the plurality of clamping parts clamp the superheater tube;

[0012] The inner peripheral surface of the clamping portion forms surface contact with the outer peripheral surface of the superheater tube;

[0013] A sliding pair is arranged on the side wall of the superheater tube, and the first tube clamp and the second tube clamp are arranged on the upper part of the sliding pair.

[0014] The platen superheater tube clamping device according to this solution has at least the following technical effects:

[0015] The screen-type superheater tube clamping device can increase the number of clamped superheater tubes, improve the force balance of the tubes, effectively reduce the vibration and deformation of the superheater tubes during operation, and can better ensure the close fit between the clamping part and the tube, and can avoid vibration with the clamped tube and the sliding pair falling off, resulting in the risk of local wear between the tubes and possible leakage and shutdown, and can also prevent deformation or coking of the high-temperature superheater caused by misalignment of the tubes. The screen-type superheater tube clamping device is used to clamp the superheater tubes, and the force position of the collision and friction is transferred, so that the safe operation of the screen-type superheater tubes can be well protected.

[0016] By utilizing the original sliding pair on the superheater tube, the clamping device is arranged on the upper part of the sliding pair, so that the sliding pair can support the clamping device, prevent the clamping device from sliding, and further improve the clamping stability of the clamping device.

[0017] As a further solution of the utility model: the clamping device is arranged in multiple groups, which clamp the superheater tubes at staggered intervals.

[0018] Since the clamping devices are arranged in multiple groups, the superheater tubes are clamped at staggered intervals, so that adjacent clamping devices can overlap and clamp 2-3 superheater tubes, so that the whole screen of superheater tubes is connected as a whole, the clamping rigidity is improved, and at the same time relative expansion freedom can be achieved.

[0019] As a further solution of the utility model: both ends of the first tube clamp and the second tube clamp are respectively provided with outward extension parts, and after the first tube clamp and the second tube clamp are invertedly arranged, grooves are formed between the extension parts at both ends of the first tube clamp and the second tube clamp.

[0020] Through the outward extensions at both ends of the first tube clamp and the second tube clamp, and after the first tube clamp and the second tube clamp are inverted, a groove is formed between the extensions at both ends. The groove allows other clamping devices to be arranged at the left and right ends, so that the length of the clamping device can be extended, and more superheater tubes arranged side by side can be clamped at the same time, so that the stability of clamping the superheater tubes is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the structure of a clamping state of a platen-type superheater tube clamping device;

[0023] Figure 2 It is a structural schematic diagram of a platen-type superheater tube clamping device;

[0024] Figure 3 It is a partial structural schematic diagram of a platen-type superheater tube clamping device;

[0025] Figure 4 It is a structural schematic diagram of another embodiment of a platen-type superheater tube clamping device;

[0026] Figure 5 This is a schematic diagram of the structure of the splicing state of the platen superheater tube clamping device.

[0027] Reference numerals:

[0028] 101. Superheater tube; 102. First tube clamp; 103. Second tube clamp; 104. Semicircular arc; 105. Mounting hole; 106. Clamping part; 107. Sliding pair; 108. Extension part; 109. Groove. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, 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 invention 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 cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, the meaning of "above", "below", "more than", etc. is one or more, the meaning of "more than" is more than two, "greater than", "less than", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0035] like Figure 1-3 The first embodiment of the utility model is a platen-type superheater tube clamping device, comprising a superheater tube 101, and also comprising: a first tube clamp 102 and a second tube clamp 103; the first tube clamp 102 and the second tube clamp 103 are respectively provided with a plurality of semicircular arcs 104 in an integral manner along the length direction; a plurality of mounting holes 105 are provided between a plurality of adjacent semicircular arcs on the first tube clamp 102 and the second tube clamp 103; the first tube clamp 102 and the second tube clamp 103 are fixed by bolts through the mounting holes 105; the first tube clamp 102 and the second tube clamp 103 are provided in an inverted manner; a plurality of clamping portions 106 are formed between the plurality of semicircular arcs on the first tube clamp 102 and the plurality of semicircular arcs on the second tube clamp 103, and the plurality of clamping portions 106 clamp the superheater tube 101; the inner circumferential surface of the clamping portion 106 forms a surface contact with the outer circumferential surface of the superheater tube 101. A sliding pair 107 is disposed on the side wall of the superheater tube 101 , and the first tube clamp 102 and the second tube clamp 103 are disposed on the upper portion of the sliding pair 107 .

[0036] Specifically, the screen-type superheater tube clamping device can increase the number of clamped superheater tubes 101, improve the force balance of the tubes, effectively reduce the vibration and deformation of the superheater tubes 101 during operation, and can better ensure the close fit between the clamping portion 106 and the tube, and can avoid vibration with the clamped tube and the risk of sliding pair falling off, resulting in local wear between the tubes and possible leakage and shutdown. At the same time, it can prevent deformation or coking of the high-temperature superheater caused by misalignment of the tubes. The screen-type superheater tube clamping device improves the clamping strength, maintains the safety and stability of the superheater tube 101, and thus improves the operating efficiency of the superheater.

[0037] Specifically, by utilizing the original sliding pair 107 on the superheater tube 101, the clamping device is arranged on the upper part of the sliding pair 107, so that the sliding pair 107 can support the clamping device to prevent the clamping device from sliding, thereby further improving the clamping stability of the clamping device.

[0038] According to the first embodiment of the present utility model, the clamping device is arranged in multiple groups, which clamp the superheater tubes 101 at staggered intervals.

[0039] Specifically, since the clamping devices are arranged in multiple groups and clamp the superheater tubes 101 at staggered intervals, adjacent clamping devices can overlap and clamp 2-3 superheater tubes 101, so that the entire screen of superheater tubes 101 are connected as a whole, thereby improving the clamping rigidity and having relative expansion freedom.

[0040] like Figure 4 and Figure 5 In another embodiment of the present invention, both ends of the first tube clamp 102 and the second tube clamp 103 are respectively provided with outward extension portions 108 . After the first tube clamp 102 and the second tube clamp 103 are invertedly arranged, grooves 109 are formed between the extension portions 108 at both ends of the first tube clamp 102 and the second tube clamp 103 .

[0041] Specifically, through the outward extensions 108 at both ends of the first tube clamp 102 and the second tube clamp 103, after the first tube clamp 102 and the second tube clamp 103 are inverted, a groove 109 is formed between the extensions 108 at both ends. The groove 109 allows other clamping devices to be set at the left and right ends, so that the length of the clamping device can be extended, and more parallel superheater tubes 101 can be clamped at the same time, so that the stability of clamping the superheater tubes 101 is further improved.

[0042] It should also be noted that the platen superheater tube clamping device is not limited to clamping platen superheater tubes, but can also be used to clamp platen reheater tubes or other platen pipelines.

[0043] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A platen-type superheater tube clamping device, comprising a superheater tube (101), characterized in that: Also includes: A first pipe clamp (102) and a second pipe clamp (103); The first pipe clamp (102) and the second pipe clamp (103) are respectively integrally provided with a plurality of semicircular arcs (104) along the length direction; A plurality of mounting holes (105) are provided between a plurality of adjacent semicircular arcs on the first pipe clamp (102) and the second pipe clamp (103); The first pipe clamp (102) and the second pipe clamp (103) are arranged in an inverted manner; A plurality of clamping portions (106) are formed between the plurality of semicircular arcs on the first tube clamp (102) and the plurality of semicircular arcs on the second tube clamp (103), and the plurality of clamping portions (106) clamp the superheater tube (101); The inner peripheral surface of the clamping portion (106) forms surface contact with the outer peripheral surface of the superheater tube (101); A sliding pair (107) is arranged on the side wall of the superheater tube (101), and the first tube clamp (102) and the second tube clamp (103) are arranged on the upper part of the sliding pair (107).

2. The platen superheater tube clamping device according to claim 1 is characterized in that: The clamping devices are arranged in multiple groups, clamping the superheater tubes (101) at staggered intervals.

3. The platen superheater tube clamping device according to claim 1, characterized in that: Both ends of the first tube clamp (102) and the second tube clamp (103) are respectively provided with outwardly extending portions (108); after the first tube clamp (102) and the second tube clamp (103) are invertedly arranged, grooves (109) are formed between the extending portions (108) at both ends of the first tube clamp (102) and the second tube clamp (103).

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