Supporting device for boiler drain pipe

Abstract

The invention relates to a supporting device for a boiler drain pipe, and the supporting device for the boiler drain pipe comprises a base which is provided with a first via hole for the boiler drain pipe to pass through; the elastic supporting piece is provided with a second through hole for the boiler drain pipe to penetrate through, and the elastic supporting piece can stretch out and draw back in the first direction and is movably installed on the base in the second direction; the locking structure comprises a locking piece, the locking piece is arranged at the end, away from the base, of the elastic supporting piece in the first direction, the end, in the first direction, of the locking piece is connected to the elastic supporting piece, the other end of the locking piece is detachably connected to the boiler drain pipe, and the first direction intersects with the second direction; the central axis of the second via hole is parallel to the central axis of the first via hole. The supporting device for the drain pipe of the boiler can support the drain pipe, so that the situation that the drain pipe leaks due to vibration or movement blocking is effectively avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of boiler drain pipes, and in particular to a supporting device for boiler drain pipes. Background Art

[0002] The drain pipes of the "four major pipelines" (i.e., high-pressure feed water pipeline, main steam pipeline, reheat steam cold section pipeline and reheat steam hot section pipeline) in the power station boiler are arranged at different positions of the four major pipelines. Among them, one end of the drain pipe is connected to the corresponding pipeline, and the other end is vertically downward and passes through the grid plate to connect to the main drainage pipe.

[0003] During boiler operation, the "four major pipelines" will expand to a certain extent along the airflow direction, and the drain pipes of the "four major pipelines" will move with the expansion of the corresponding pipelines, which will cause the drain pipes to vibrate with the corresponding pipelines. Long-term operation may even cause the drain pipes to leak due to fatigue cracks. In addition, the drain pipes may be obstructed when moving with the corresponding pipelines, which will also cause the drain pipes to crack. Summary of the invention

[0004] The purpose of the present disclosure is to provide a supporting device for a boiler drain pipe, which can support the drain pipe to effectively prevent the drain pipe from leaking due to vibration or movement obstruction.

[0005] In order to achieve the above-mentioned purpose, the present disclosure provides a support device for a boiler drain pipe, the support device comprising: a base, the base is provided with a first through hole for the boiler drain pipe to pass through; an elastic support member, the elastic support member is provided with a second through hole for the boiler drain pipe to pass through, the elastic support member is capable of extending and retracting along a first direction and the elastic support member is movably mounted on the base along a second direction; a locking structure, the locking structure comprising a locking member, the locking member is arranged at one end of the elastic support member away from the base in the first direction, and one end of the locking member in the first direction is connected to the elastic support member, and the other end is detachably connected to the boiler drain pipe, wherein the first direction intersects with the second direction, and the central axis of the second through hole is parallel to the central axis of the first through hole.

[0006] Optionally, the two ends of the elastic support member in the third direction are movably mounted on the base by at least one moving mechanism, wherein each of the moving mechanisms includes a first moving member and a second moving member that match each other, one of the first moving member and the second moving member is arranged on the elastic support member, and the other is arranged on the base, wherein the first direction, the second direction and the third direction intersect each other.

[0007] Optionally, the first movable member is configured as a guide rail extending along the second direction, and the second movable member is configured as a roller capable of rolling cooperation with the guide rail.

[0008] Optionally, the guide rail includes a first plate and a second plate connected to each other, the first plate extends along the first direction, the second plate extends along the second direction, the roller is rotatably mounted on the second plate, wherein at least one of the first plate and the second plate is connected to the base.

[0009] Optionally, the guide rail further includes a third plate extending along the second direction, the third plate is connected to the first plate, and the third plate and the second plate are arranged opposite to each other in the first direction.

[0010] Optionally, two ends of the elastic support member in the third direction are respectively mounted on the base through a plurality of the moving mechanisms, wherein the plurality of moving mechanisms located on the same side of the elastic support member share one guide rail.

[0011] Optionally, the elastic support member is configured as an expansion joint, one end of the expansion joint in the first direction is connected to the locking member, and the other end of the expansion joint is movably mounted on the base along the second direction.

[0012] Optionally, the locking member includes a first hoop portion and a second hoop portion, the first hoop portion includes a first arc-shaped body and first connecting plates respectively formed on both sides of the first arc-shaped body in a circumferential direction, and the first arc-shaped body defines a first arc-shaped cavity; the second hoop portion includes a second arc-shaped body and second connecting plates respectively formed on both sides of the second arc-shaped body in a circumferential direction, and the second arc-shaped body defines a second arc-shaped cavity; the first connecting plate and the second connecting plate arranged opposite to each other are releasably connected together by fasteners, wherein the first arc-shaped body and the second arc-shaped body are both connected to the elastic support member, and when the first hoop portion and the second hoop portion are connected, the first arc-shaped cavity and the second arc-shaped cavity jointly define a clamping cavity for clamping the boiler drain pipe.

[0013] Optionally, a plurality of first connecting plates are provided on at least one side of the first arc-shaped body in the circumferential direction, and the plurality of first connecting plates are evenly spaced along the axial direction of the first arc-shaped body, and the second connecting plates on both sides of the second arc-shaped body in the circumferential direction are the same in number as the first connecting plates on the corresponding first arc-shaped body and are arranged one-to-one.

[0014] Optionally, the base is configured as a grid plate, and the first through hole is provided on the grid plate.

[0015] Through the above technical scheme, in the support device for the boiler drain pipe provided by the present disclosure, the elastic support member can be extended and retracted along the first direction and can be movably installed on the base along the second direction, and the elastic support member is detachably connected to the boiler drain pipe through a locking member, so that when the boiler drain pipe moves along the first direction with the corresponding pipeline, the elastic support member can be extended and retracted along the first direction, so as to use its own elasticity to make the boiler water pipe move along the first direction, thereby avoiding the boiler drain pipe from cracking due to the obstruction of movement in the first direction, and after the elastic support member contracts along the first direction, it can also support the boiler drain pipe, thereby greatly reducing the risk of fatigue cracks or even drain leakage in the boiler drain pipe due to the vibration of the corresponding pipeline. In addition, the elastic support is movably mounted on the base along the second direction, so that the boiler drain pipe can move along the second direction with the corresponding pipeline. This can ensure that the elastic support can move along the second direction with the boiler drain pipe, thereby ensuring the supporting effect of the elastic support on the boiler drain pipe. On the other hand, it can also prevent the boiler drain pipe from cracking due to movement in the second direction, thereby further reducing the risk of fatigue cracks or even drainage leakage in the boiler drain pipe due to vibration of the corresponding pipeline. Therefore, the support device for the boiler drain pipe provided by the present disclosure can support the drain pipe to effectively prevent the drain pipe from leaking due to vibration or movement obstruction.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 is a structural schematic diagram of a supporting device for a boiler drain pipe provided according to a specific embodiment of the present disclosure; Figure 2 It is another structural schematic diagram of a support device for a boiler drain pipe provided according to a specific embodiment of the present disclosure, wherein the base is removed.

[0018] Description of Reference Numerals 10-base; 1-grating plate; 11-first through hole; 21-expansion joint; 22-first mounting plate; 23-second mounting plate; 3-locking member; 31-first hoop; 311-first arc-shaped body; 312-first connecting plate; 32-second hoop; 321-second arc-shaped body; 322-second connecting plate; 41-first moving member; 411-guide rail; 4111-first plate; 4112-second plate; 4113-third plate; 42-second moving member; 421-roller; 43-connecting rod; 5-fastener; 60-boiler drain pipe. DETAILED DESCRIPTION

[0019] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0020] In the present disclosure, unless otherwise specified, the directional words "inside" and "outside" used refer to the inside and outside relative to the outline of the component itself; in addition, the use of words such as "first" and "second" is intended to distinguish different components and does not have order and importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be understood as limitations on the present disclosure.

[0021] According to a specific embodiment of the present disclosure, a supporting device for a boiler drain pipe is provided. Figure 1 and Figure 2 An embodiment of the supporting device for boiler drain pipe is shown. Figure 1 and Figure 2 As shown, the supporting device may include: a base 10, on which a first through hole 11 is provided for the boiler drain pipe 60 to pass through; an elastic support member, on which a second through hole is provided for the boiler drain pipe 60 to pass through, and the elastic support member can be moved along a first direction (reference Figure 1 The elastic support member is extended along the second direction (reference Figure 1 The locking structure includes a locking member 3, which is arranged at one end of the elastic support member away from the base 10 in the first direction, and one end of the locking member 3 in the first direction is connected to the elastic support member, and the other end is detachably connected to the boiler drain pipe 60, wherein the first direction intersects with the second direction, and the central axis of the second through hole is parallel to the central axis of the first through hole 11.

[0022] Through the above technical scheme, in the support device for the boiler drain pipe provided by the present invention, the elastic support member can be retracted and contracted along the first direction and movably installed on the base 10 along the second direction, and the elastic support member is detachably connected to the boiler drain pipe 60 through the locking member 3, so that when the boiler drain pipe 60 moves along the first direction with the corresponding pipeline, the elastic support member can be retracted and contracted along the first direction, so as to use its own elasticity to make the boiler water pipe move along the first direction, thereby avoiding the boiler drain pipe 60 from cracking due to the obstruction of movement in the first direction, and after the elastic support member contracts along the first direction, it can also support the boiler drain pipe 60, thereby greatly reducing the risk of fatigue cracks or even drain leakage in the boiler drain pipe 60 due to the vibration of the corresponding pipeline. In addition, the elastic support is movably mounted on the base 10 along the second direction, so that the boiler drain pipe 60 can move along the second direction with the corresponding pipeline. This can ensure that the elastic support can move along the second direction with the boiler drain pipe 60, thereby ensuring the supporting effect of the elastic support on the boiler drain pipe 60. On the other hand, it can also prevent the boiler drain pipe 60 from cracking due to the movement in the second direction, thereby further reducing the risk of fatigue cracks or even drainage leakage in the boiler drain pipe 60 due to the vibration of the corresponding pipeline. Therefore, the support device for the boiler drain pipe provided by the present disclosure can support the drain pipe to effectively prevent the drain pipe from leaking due to vibration or movement obstruction.

[0023] It should be noted that the sizes of the first through hole 11 and the second through hole can be selectively designed according to specific circumstances. For example, when the diameter of the boiler drain pipe 60 is 32 mm, the first through hole 11 can be wide (the size in the third direction, i.e. Figure 1 The second via hole may be a rectangular via hole with a length (dimension in the L3 direction) of 130 mm and a length (dimension in the second direction) of 350 mm. The second via hole may have a diameter of 45 mm, and the present disclosure does not impose any limitation on this.

[0024] In the specific embodiments provided in the present disclosure, reference is made to Figure 1 and Figure 2 As shown, the elastic support member is in the third direction (i.e. Figure 1 The two ends of the elastic support member in the L3 direction are movably mounted on the base 10 by at least one moving mechanism to ensure that the elastic support member moves more steadily and smoothly along the second direction, further improving the supporting effect of the elastic support member on the boiler drain pipe 60. Figure 1 and Figure 2As shown, each mobile mechanism comprises a first mobile member 41 and a second mobile member 42 that match each other, one of the first mobile member 41 and the second mobile member 42 being arranged at an elastic support member, and the other being arranged at a base 10, wherein the first direction, the second direction and the third direction intersect in pairs. The elastic support member moves along the second direction relative to the base 10 by the cooperation of the first mobile member 41 and the second mobile member 42. In some embodiments of the present disclosure, the first mobile member 41 is arranged at the elastic support member, and the second mobile member 42 is arranged at the base 10. In other embodiments of the present disclosure, the first mobile member 41 is arranged at the base 10, and the second mobile member 42 is arranged at the elastic support member.

[0025] The first moving member 41 and the second moving member 42 can be constructed in any suitable manner. Figure 1 and Figure 2 As shown, the first moving member 41 can be configured as a guide rail 411, the guide rail 411 extends along the second direction, and the second moving member 42 is configured as a roller 421 that can roll with the guide rail 411. The roller 421 rolls on the guide rail 411, thereby driving the elastic support member to move along the second direction. In some embodiments, the roller 421 can be configured as a rolling bearing, and the present disclosure does not impose any limitation on this.

[0026] In some other embodiments of the present disclosure, the elastic support member is in the third direction (i.e. Figure 1 The two ends of the elastic support member in the L3 direction (in the L3 direction) are respectively mounted on the base 10 by at least one moving mechanism to ensure that the elastic support member moves more smoothly along the second direction, further improving the supporting effect of the elastic support member on the boiler drain pipe 60. Figure 1 and Figure 2 As shown, each moving mechanism includes a first sliding member and a second sliding member that can slide together, one of the first sliding member and the second sliding member is arranged on the elastic support member, and the other is arranged on the base 10, and the elastic support member is moved relative to the base 10 along the second direction through the sliding cooperation of the first sliding member and the second sliding member. In some embodiments of the present disclosure, the first sliding member is arranged on the elastic support member, and the second sliding member is arranged on the base 10. In some other embodiments of the present disclosure, the first sliding member is arranged on the base 10, and the second sliding member is arranged on the elastic support member. Among them, the first sliding member can be configured as a slide rail, and the slide rail extends along the second direction, and the second sliding member is configured as a slider that can slide with the slide rail. In some embodiments, the slider can be configured as a sliding bearing, and the present disclosure does not impose any restrictions on this.

[0027] In the following, the present disclosure will be described by way of example only taking the example that both ends of the elastic support member in the third direction are respectively installed on the base 10 through at least one moving mechanism.

[0028] In the specific embodiments provided in the present disclosure, reference is made to Figure 1 and Figure 2 As shown, the guide rail 411 may include a first plate 4111 and a second plate 4112 connected to each other, the first plate 4111 extending along a first direction, the second plate 4112 extending along a second direction, the roller 421 being rollably mounted on the second plate 4112, wherein at least one of the first plate 4111 and the second plate 4112 is connected to the base 10. In some embodiments, reference Figure 1 and Figure 2 As shown, the first plate 4111 is connected to the base 10, and the roller 421 is rollably mounted on the second plate 4112. In other embodiments, the first plate 4111 and the second plate 4112 are both connected to the base 10, and the roller 421 is rollably mounted on the second plate 4112.

[0029] There are multiple ways to connect the first plate 4111 and the second plate 4112 to the base 10. Optionally, the first plate 4111 can be welded to the base 10, and the second plate 4112 can be connected to the base plate through a rib. This disclosure does not impose any limitation on this, and those skilled in the art can selectively design according to actual needs.

[0030] In the above-mentioned embodiment, the material, structure and expansion amount of the elastic support member can be set according to the expansion amount of the drain pipe along the first direction, so that the roller 421 is always rollingly installed on the guide rail 411. Figure 1 and Figure 2 As shown, the guide rail 411 may also include a third plate 4113 extending along the second direction, the third plate 4113 is connected to the first plate 4111, and the third plate 4113 and the second plate 4112 are arranged opposite to each other in the first direction. The arrangement of the third plate 4113 can further prevent the roller 421 from escaping from the guide rail 411 to ensure the rolling of the roller 421 on the guide rail 411.

[0031] In the specific embodiments provided in the present disclosure, reference is made to Figure 1 and Figure 2 As shown, both ends of the elastic support member in the third direction are respectively mounted on the base 10 through a plurality of moving mechanisms, wherein the plurality of moving mechanisms located on the same side of the elastic support member share a guide rail 411. Figure 1 and Figure 2 As shown, both ends of the elastic support member in the third direction are respectively mounted on the base 10 through two moving mechanisms, and the two moving mechanisms share a slide rail, that is, the two rollers 421 are both rollingly mounted on the same guide rail 411 .

[0032] In the specific embodiments provided in the present disclosure, the elastic support member can be constructed in any suitable manner. Figure 1 and Figure 2 As shown, the elastic support member can be constructed as an expansion joint 21, one end of the expansion joint 21 in the first direction is connected to the locking member 3, and the other end is movably mounted on the base 10 along the second direction. Figure 1 and Figure 2 As shown, the expansion frame is provided with a first mounting plate 22 connected to the locking member 3 at one end in the first direction, and a second mounting plate 23 connected to the base 10 at the other end. Both the first mounting plate 22 and the second mounting plate 23 need to be provided with through holes for the boiler drain pipe 60 to pass through. Here, the first mounting plate 22 and the second mounting plate 23 can both be constructed as flange structures, and the present disclosure does not impose any restrictions on this. In addition, the structure and working principle of the expansion joint 21 are well known to those skilled in the art, and the present disclosure will not elaborate on this. In other embodiments of the present disclosure, the elastic support member can also be other construction methods, and the present disclosure does not impose any restrictions on this.

[0033] In the specific embodiment provided in the present disclosure, the locking member 3 can be constructed in any suitable manner. Figure 1 and Figure 2 As shown, the locking member 3 may include a first hoop portion 31 and a second hoop portion 32, the first hoop portion 31 includes a first arc-shaped body 311 and first connecting plates 312 respectively formed on both sides of the first arc-shaped body 311 in a circumferential direction, and the first arc-shaped body 311 defines a first arc-shaped cavity; the second hoop portion 32 includes a second arc-shaped body 321 and second connecting plates 322 respectively formed on both sides of the second arc-shaped body 321 in a circumferential direction, and the second arc-shaped body 321 defines a second arc-shaped cavity; the first connecting plate 312 and the second connecting plate 322 arranged opposite to each other are connected together by a fastener 5, wherein the first arc-shaped body 311 and the second arc-shaped body 321 are both connected to the elastic support member, and when the first hoop portion 31 and the second hoop portion 32 are connected, the first arc-shaped cavity and the second arc-shaped cavity jointly define a clamping cavity for clamping the boiler drain pipe 60. The first arc-shaped body 311 and the second arc-shaped body 321 are respectively placed on the outer periphery of the boiler drain pipe 60, and then the first connecting plate 312 and the second connecting plate 322 arranged opposite to each other are releasably connected together by the fastener 5. When the fastener 5 connects the first connecting plate 312 and the second connecting plate 322, the clamping cavity defined jointly by the first arc-shaped cavity and the second arc-shaped cavity can clamp the boiler drain pipe 60, that is, the locking member 3 and the boiler drain pipe 60 are connected together. When the fastener 5 releases the first connecting plate 312 and the second connecting plate 322, the first arc-shaped body 311 and the second arc-shaped body 321 gradually move away from the boiler drain pipe 60, and the boiler drain pipe 60 can move along the first direction relative to the first arc-shaped body 311 and the second arc-shaped body 321, and at this time, the locking member 3 and the boiler drain pipe 60 are disconnected.

[0034] The locking member 3 can also be made in any suitable manner. For example, the first arc-shaped body 311 and the second arc-shaped body 321 of the locking member 3 can be formed by dividing an idle pipe slightly larger than the diameter of the boiler drain pipe 60 into two, and a corresponding number of first connecting plates 312 are welded on both sides of the circumference of the first arc-shaped body 311, and a corresponding number of second connecting plates 322 are welded on both sides of the circumference of the second arc-shaped body 321, and small holes for the fastener 5 to pass through are opened on the first connecting plates 312 and the second connecting plates 322 to reduce costs. In other embodiments of the present disclosure, the locking member 3 can also be other structural methods, and the present disclosure does not impose any restrictions on this.

[0035] In the specific embodiments provided in the present disclosure, reference is made to Figure 1 and Figure 2 As shown, a plurality of first connecting plates 312 are provided on at least one side of the first arc-shaped body 311 in the circumferential direction, and the plurality of first connecting plates 312 are evenly spaced along the axial direction of the first arc-shaped body 311. The number of second connecting plates 322 on both sides of the second arc-shaped body 321 in the circumferential direction is the same as that of the first connecting plates 312 on the corresponding first arc-shaped body 311 and are provided one-to-one. The provision of the plurality of first connecting plates 312 and the second connecting plates 322 can ensure the connection reliability between the first arc-shaped body 311 and the second arc-shaped body 321, and ensure that the first arc-shaped body 311 and the second arc-shaped body 321 are subjected to uniform force. In some embodiments of the present disclosure, reference Figure 1 and Figure 2 As shown, two first connecting plates 312 are respectively provided on both sides of the first arc-shaped body 311 in the circumferential direction, and the two first connecting plates 312 are arranged at intervals along the circumference of the first arc-shaped body 311. Two second connecting plates 322 are also respectively provided on both sides of the second arc-shaped body 321 in the circumferential direction, and the two first connecting plates 312 and the two second connecting plates 322 on the same side are arranged opposite to each other.

[0036] In other embodiments of the present disclosure, first connecting plates 312 are respectively provided on both sides of the first arc-shaped body 311 in the circumferential direction, and a plurality of first fastening holes for fasteners 5 to pass through are provided on the first connecting plates 312, and the plurality of first fastening holes are evenly spaced along the axial direction of the first arc-shaped body 311. Second connecting plates 322 are respectively provided on both sides of the second arc-shaped body 321 in the circumferential direction, and a plurality of second fastening holes for fasteners 5 to pass through are provided on the second connecting plates 322, and the plurality of second fastening holes are evenly spaced along the axial direction of the second arc-shaped body 321, and the number of the first fastening holes on the first connecting plate 312 and the second fastening holes on the second connecting plate 322 on the same side are the same and are arranged one-to-one.

[0037] In the specific embodiments provided in the present disclosure, the base 10 can be constructed in any suitable manner. In some embodiments of the present disclosure, the base 10 can be constructed as a plate-like structure, which is mounted on the grid plate 1 and is provided with a first through hole 11 for the boiler drain pipe 60 to pass through, and the elastic support member can be movably mounted on the base 10. In other embodiments of the present disclosure, the base 10 can be constructed as a grid plate 1, and the grid plate 1 is provided with a first through hole 11, and the above-mentioned guide rails 411 are respectively fixedly connected to the grid plate 1. It should be noted that the first through hole 11 is a hole surrounded by four grid beams, and the guide rail 411 can be fixed on the inner side of the corresponding grid beam (the side close to the first through hole 11), or on the outer side of the corresponding grid beam (the side away from the first through hole 11, and can also be fixed on the upper side or lower side of the corresponding grid beam. In this regard, the present disclosure does not impose any restrictions, and those skilled in the art can selectively set it according to actual needs.

[0038] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0039] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0040] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A supporting device for a boiler drain pipe, characterized in that: The supporting device comprises: A base, wherein the base is provided with a first through hole for the boiler drain pipe to pass through; An elastic support member, wherein a second through hole for the boiler drain pipe to pass through is provided on the elastic support member, the elastic support member can be extended and retracted along a first direction and the elastic support member is movably mounted on the base along a second direction; A locking structure, the locking structure comprising a locking member, the locking member being arranged at one end of the elastic support member away from the base in the first direction, and one end of the locking member in the first direction being connected to the elastic support member, and the other end being detachably connected to the boiler drain pipe, The first direction intersects with the second direction, and a central axis of the second via hole is parallel to a central axis of the first via hole.

2. The supporting device for boiler drain pipe according to claim 1, characterized in that: The two ends of the elastic support member in the third direction are movably mounted on the base through at least one moving mechanism, wherein each of the moving mechanisms comprises a first moving member and a second moving member that match each other, one of the first moving member and the second moving member is arranged on the elastic support member, and the other is arranged on the base, The first direction, the second direction and the third direction intersect each other.

3. The supporting device for boiler drain pipe according to claim 2, characterized in that: The first moving member is configured as a guide rail extending along the second direction, and the second moving member is configured as a roller capable of rolling cooperation with the guide rail.

4. The supporting device for boiler drain pipe according to claim 3, characterized in that: The guide rail includes a first plate and a second plate connected to each other, the first plate extends along the first direction, the second plate extends along the second direction, and the roller is rotatably mounted on the second plate. Wherein, at least one of the first plate and the second plate is connected to the base.

5. The supporting device for boiler drain pipe according to claim 4, characterized in that: The guide rail further includes a third plate extending along the second direction, the third plate is connected to the first plate, and the third plate and the second plate are arranged opposite to each other in the first direction.

6. The supporting device for boiler drain pipe according to claim 3, characterized in that: Both ends of the elastic support member in the third direction are respectively mounted on the base through a plurality of the moving mechanisms, wherein the plurality of moving mechanisms located on the same side of the elastic support member share one guide rail.

7. The supporting device for boiler drain pipe according to claim 1, characterized in that: The elastic support member is configured as an expansion joint, one end of the expansion joint in the first direction is connected to the locking member, and the other end of the expansion joint is movably mounted on the base along the second direction.

8. The supporting device for boiler drain pipe according to claim 1, characterized in that: The locking member includes a first hoop portion and a second hoop portion, wherein the first hoop portion includes a first arc-shaped body and first connecting plates respectively formed on both sides of the first arc-shaped body in a circumferential direction, wherein the first arc-shaped body defines a first arc-shaped cavity; the second hoop portion includes a second arc-shaped body and second connecting plates respectively formed on both sides of the second arc-shaped body in a circumferential direction, wherein the second arc-shaped body defines a second arc-shaped cavity; the first connecting plate and the second connecting plate arranged opposite to each other are releasably connected together by a fastener, Wherein, the first arc-shaped body and the second arc-shaped body are both connected to the elastic support member, and when the first hoop portion and the second hoop portion are connected, the first arc-shaped cavity and the second arc-shaped cavity jointly define a clamping cavity for clamping the boiler drain pipe.

9. The supporting device for boiler drain pipe according to claim 8, characterized in that: A plurality of first connecting plates are arranged on at least one side of the first arc-shaped body in the circumferential direction, and the plurality of first connecting plates are evenly spaced along the axial direction of the first arc-shaped body. The number of the second connecting plates on both sides of the second arc-shaped body in the circumferential direction is the same as the first connecting plates on the corresponding first arc-shaped body and they are arranged in a one-to-one correspondence.

10. The supporting device for a boiler drain pipe according to any one of claims 1 to 9, characterized in that: The base is configured as a grid plate, and the grid plate is provided with the first through hole.

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