A device for supporting and hanging large-capacity waste heat boiler header tube screen

Abstract

A device for supporting and hanging a pipe panel of a large-capacity waste heat boiler header. The present invention relates to a device for supporting and hanging a pipe panel. The purpose of the present invention is to solve the problem that the distance between the support points of the header of the widened horizontal flue of the boiler is too large, which endangers the safe operation of the power plant. The device comprises a top plate, a plurality of sliding supports and a plurality of hanging rod mechanisms; the plurality of sliding supports are fixedly installed above the top plate, and the hanging rod mechanism comprises a pin, a U-shaped clamp, a hanging rod, a fixing nut and two locking nuts; the two ends of the hanging rod are respectively processed with external threads, the side wall of the bottom open end of the U-shaped clamp is inserted with a pin, the top connecting end of the U-shaped clamp is threadedly connected to the bottom end of the hanging rod, the U-shaped clamp and the hanging rod are locked and fixed by a locking nut, the top end of the hanging rod passes through a steel beam and is threadedly connected to the fixing nut and the locking nut, and the open end of each U-shaped clamp is connected to the top plate by a pin. The present application is used for supporting and hanging a pipe panel of a boiler header.

Description

Technical Field

[0001] The invention relates to a supporting and hanging device, in particular to a supporting and hanging device for a header tube panel of a large-capacity garbage waste heat boiler, which is used for supporting and hanging a header tube panel of a boiler. Background Art

[0002] With the increase of evaporation capacity and parameters of waste heat boiler, the width of boiler furnace and horizontal flue is getting larger and larger, and most of the main heating surfaces such as superheaters and economizers are arranged in the horizontal flue. The horizontal flue headers of the original small-capacity waste heat boiler are mostly supported on the transition beams on both sides of the header. With the increase of the width of the horizontal flue, this structure can no longer meet the needs of safe operation of the boiler. The large distance between the support points will cause excessive deflection of the header, which is easy to cause excessive local load, and then cause cracks at the root of the header pipe joints, endangering the safe operation of the power plant. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the deflection is too large due to the large distance between the support points of the header when widening the horizontal flue of the boiler, which endangers the safe operation of the power plant, and further provide a support device for the header tube screen of a large-capacity garbage waste heat boiler.

[0004] The technical problem is solved by the following solution:

[0005] It includes a top plate, multiple sliding supports and multiple suspension rod mechanisms; the multiple sliding supports are fixedly installed above the top plate, and the suspension rod mechanism includes a pin shaft, a U-shaped clamp, a suspension rod, a fixing nut and two locking nuts; both ends of the suspension rod are respectively processed with external threads, the side wall of the bottom open end of the U-shaped clamp is inserted with a pin shaft, the top connecting end of the U-shaped clamp is threadedly connected to the bottom end of the suspension rod, the U-shaped clamp and the suspension rod are locked and fixed by a locking nut, the top end of the suspension rod passes through the steel beam and is threadedly connected to the fixing nut and the locking nut, and the open end of each U-shaped clamp is connected to the top plate through a pin shaft.

[0006] Compared with the prior art, the present invention has the following beneficial effects:

[0007] 1. This application transfers the header load evenly to the load-bearing frame steel beam, thereby avoiding excessive deflection due to the large distance between the header support points when the horizontal flue is widened, and avoiding cracks at the root of the header pipe joint due to excessive local load, thereby improving product quality, facilitating on-site installation, and ensuring the safe operation of the power plant.

[0008] 2. The support and suspension device of the present application solves the problem of how to hang the header due to the widening of the horizontal flue, avoids the complicated arrangement of the furnace top hanging, improves the design quality, shortens the design cycle, helps the smooth development of large-capacity and high-parameter garbage waste heat boilers, reduces costs and facilitates market development. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is the main view of the overall structure of this application.

[0010] Figure 2 It is a schematic diagram that the header 5 is arranged on the top plate 1.

[0011] Figure 3 It is a side view of the header 5 installed on the top plate 1 and multiple sliding supports 2.

[0012] Figure 4 It is a top view of the header 5 installed on the top plate 1 and multiple sliding supports 2.

[0013] Figure 5 It is a front view of the boom mechanism 3.

[0014] Figure 6 It is a front view of the sliding support 2.

[0015] Figure 7 yes Figure 6 Side view of.

[0016] Figure 8 This is a schematic diagram of the angle iron and hooks set under the channel steel B1-6. DETAILED DESCRIPTION

[0017] Specific implementation method 1: Combination Figure 1-Figure 8 The present embodiment is described, wherein the supporting and suspending device for a large-capacity waste heat boiler header pipe screen comprises a top plate 1, a plurality of sliding supports 2 and a plurality of suspension rod mechanisms 3; the plurality of sliding supports 2 are fixedly mounted above the top plate 1, and the suspension rod mechanism 3 comprises a pin shaft 3-1, a U-shaped clamp 3-2, a suspension rod 3-3, a fixing nut 3-4 and two locking nuts 3-5; both ends of the suspension rod 3-3 are respectively processed with external threads, a pin shaft 3-1 is inserted into the side wall of the bottom open end of the U-shaped clamp 3-2, the top connecting end of the U-shaped clamp 3-2 is threadedly connected to the bottom end of the suspension rod 3-3, the U-shaped clamp 3-2 and the suspension rod 3-3 are locked and fixed by a locking nut 3-5, the top end of the suspension rod 3-3 passes through the steel beam 4 and is threadedly connected to the fixing nut 3-4 and the locking nut 3-5, and the open end of each U-shaped clamp 3-2 is connected to the top plate 1 via a pin shaft 3-1.

[0018] Specific implementation method 2: Combination Figure 1-Figure 5The present embodiment is described. The present embodiment describes a device for supporting and hanging a pipe screen of a large-capacity waste heat boiler header. The top plate 1 includes an I-beam 1-1, two channel steels A1-2, two groups of channel steels B1-6, four hanging ear plates B1-4, eight channel steels C1-3 and eight hanging ear plates A1-5; each group of channel steels B1-6 is composed of a plurality of parallel channel steels B1-6, two channel steels A1-2 are arranged opposite to each other, the I-beam 1-1 is arranged between the two channel steels A1-2, the I-beam 1-1 and the two channel steels A1-2 are arranged in parallel, and each channel steel A1-2 is fixedly connected to one side of the I-beam 1-1 by a group of channel steels B1-6, and every four channel steels C1-3 are arranged at equal intervals between a group of channel steels B1-6, and the channel steels C1-3 on both sides of the I-beam 1-1 are straight. A hanging ear plate B1-4 is welded and installed on the I-beam 1-1 between two relatively arranged channel steels C1-3, a hanging ear plate A1-5 is welded and fixed on the channel steel A1-2 at the welding place between each channel steel C1-3 and the channel steel A1-2, a suspension rod mechanism 3 is respectively provided above each hanging ear plate B1-4, and the side walls of the bottom opening end of the U-shaped clamp 3-2 of the suspension rod mechanism 3 are arranged on both sides of the hanging ear plate B1-4, and the hanging ear plate B1-4 is installed on the U-shaped clamp 3-2 through the pin shaft 3-1, a suspension rod mechanism 3 is respectively provided above each hanging ear plate A1-5, and the side walls of the bottom opening end of the U-shaped clamp 3-2 of the suspension rod mechanism 3 are arranged on both sides of the hanging ear plate A1-5, and the hanging ear plate A1-5 is installed on the U-shaped clamp 3-2 through the pin shaft 3-1. Two pins are arranged at both ends of the pin shaft 3-1, and the two pins are used to connect the hanging ear plate B1-4 or the hanging ear plate A1-5 in the U-shaped clip 3-2 to prevent the pin shaft 3-1 from falling off the U-shaped clip 3-2. Other components and connection methods are the same as those in the first embodiment.

[0019] In this embodiment, a U-shaped clip 3-2, a pin shaft 3-1, a locking nut 3-5 and two pins inserted at both ends of the pin shaft 3-1 constitute the load receiving structure of the suspension rod mechanism 3, which bears the load from the top plate 1 and transfers the load to the suspension rod mechanism 3, and transfers the load from the U-shaped clip 3-2 to the load-bearing frame steel beam. The fixing nut 3-4 bears the load through the friction between the threads, and the locking nut 3-5 prevents the fixing nut 3-4 from loosening. This suspension rod mechanism 3 is easy to install on site and easy to disassemble.

[0020] Specific implementation method three: Combination Figure 1-Figure 3The present embodiment is described as a support and suspension device for a large-capacity waste heat boiler header tube screen. The sliding support 2 includes a support plate 2-1, a bottom plate A2-2, a bottom plate B2-3, two reinforcement plates 2-4 and four limit plates 2-5. The two reinforcement plates 2-4 are symmetrically welded and arranged on both sides of the support plate 2-1, and the bottom end of the support plate 2-1 and the bottom ends of the two reinforcement plates 2-4 are welded and fixedly installed on the upper end surface of the bottom plate A2-2. The bottom plate A2-2 is arranged above the bottom plate B2-3, and the four limit plates 2-5 are symmetrically arranged on the upper end surface of the bottom plate B2-3. The limit end of the top of the limit plate 2-5 is arranged above the bottom plate A2-2, and the bottom plate B2-3 is welded and installed on the upper end surface of the channel steel C1-3. Other components and connection methods are the same as those in the first specific embodiment.

[0021] In this embodiment, the bottom plate B2-3, two ribs 2-6 and channel steel C1-3 form the support structure of the sliding support 2. The bottom plate A2-2 and the bottom plate B2-3 are not welded, so that the bottom plate A2-2 can expand freely along the longitudinal direction of the header on the bottom plate B2-3, and stress concentration will not be caused due to the expansion difference. Four limit plates 2-5 are welded to both sides of the bottom plate A2-2, two on each side. The limit plates 2-5 are welded to the bottom plate B2-3, and the limit plates 2-5 are not welded to the bottom plate A2-2, so as to limit the expansion of the header in the front and rear directions.

[0022] Specific implementation method four: Combination Figure 1-Figure 4 , Figure 6 and Figure 7 This embodiment is described as a support and suspension device for a large-capacity waste heat boiler header tube panel. The sliding support 2 also includes two ribs 2-6; the two ribs 2-6 are relatively parallelly installed in the channel steel C1-3 below the bottom plate B2-3. Other components and connection methods are the same as those of the first embodiment.

[0023] Specific implementation method five: Combination Figure 1-Figure 5 This embodiment describes a large-capacity waste heat boiler header tube panel support and suspension device, in which the locking nut 3-5 at the bottom end of the suspension rod 3-3 is arranged above the U-shaped clip 3-2. Other components and connection methods are the same as those of the first embodiment.

[0024] Specific implementation method six: Combination Figure 1-Figure 5 This embodiment describes a large-capacity waste heat boiler header tube panel support and suspension device, in which the locking nut 3-5 at the top of the suspension rod 3-3 is arranged above the fixing nut 3-4. Other components and connection methods are the same as those of the first embodiment.

[0025] Specific implementation method seven: Combination Figure 1-Figure 4This embodiment is described. This embodiment is a support and suspension device for a large-capacity waste heat boiler header tube screen. A plurality of sliding supports 2 are symmetrically installed on a top plate 1 in two rows, and each header 5 is installed on a row of sliding supports 2. The header 5 is supported by a plurality of sliding supports 2. Other components and connection methods are the same as those of the first embodiment.

[0026] Specific implementation method eight: Combination Figure 1 and Figure 8 This embodiment describes a device for supporting and hanging a pipe panel of a large-capacity waste heat boiler header. A plurality of angle irons are welded and installed below the channel steel B1-6. The hooks are installed on the angle irons. The pipe panel below is pulled and hung by the hooks to ensure safe operation of the boiler. Other components and connection methods are the same as those of the first embodiment.

[0027] In this embodiment, the load of the tube panel is transferred to the top plate 1 through the hooks and angle steels, and the load of the header 5 is transferred to the top plate 1 through the sliding support 2. The top plate 1 transfers the load from the tube panel 6 and the header 5 to the hanging ear plates A1-5 and B1-4, and then transfers it to the suspension rod mechanism 3.

Claims

1. A device for supporting and hanging a pipe panel of a large-capacity waste heat boiler header, characterized in that: It comprises a top plate (1), a plurality of sliding supports (2) and a plurality of suspension rod mechanisms (3); the top plate (1) comprises an I-beam (1-1), two channel steels A (1-2), two groups of channel steels B (1-6), four suspension lug plates B (1-4), eight channel steels C (1-3) and eight suspension lug plates A (1-5); the plurality of sliding supports (2) are fixedly mounted above the top plate (1); the suspension rod mechanism (3) comprises a pin shaft (3-1), a U-shaped clamp (3-2), a suspension rod (3-3), a fixing nut (3-4) and two locking nuts (3-5); both ends of the suspension rod (3-3) are respectively processed with external threads, and the bottom of the U-shaped clamp (3-2) is open. A pin shaft (3-1) is inserted into the side wall of the end, the top connection end of the U-shaped clip (3-2) is threadedly connected to the bottom end of the suspension rod (3-3), the U-shaped clip (3-2) and the suspension rod (3-3) are locked and fixed by a locking nut (3-5), the top end of the suspension rod (3-3) passes through the steel beam (4) and is threadedly connected to the fixing nut (3-4) and the locking nut (3-5), the open end of each U-shaped clip (3-2) is connected to the top plate (1) through the pin shaft (3-1), each group of channel steels B (1-6) is composed of a plurality of parallel channel steels B (1-6), two channel steels A (1-2) are arranged opposite to each other, and the I-beam (1-1) is arranged between the two channel steels A (1-2), an I-beam (1-1) and two channel steels A (1-2) are arranged in parallel, and each channel steel A (1-2) is fixedly connected to one side of the I-beam (1-1) through a group of channel steels B (1-6), and every four channel steels C (1-3) are arranged between a group of channel steels B (1-6) at equal intervals, and the channel steels C (1-3) on both sides of the I-beam (1-1) are arranged in a straight line symmetrically, and a hanging ear plate B (1-4) is welded and installed on the I-beam (1-1) between two oppositely arranged channel steels C (1-3), and a hanging ear plate B (1-4) is welded and fixed on the channel steel A (1-2) at the welding point between each channel steel C (1-3) and the channel steel A (1-2). A hanging lug plate A (1-5), each hanging lug plate B (1-4) is provided with a hanging rod mechanism (3) above, and the side walls of the bottom opening end of the U-shaped clamp (3-2) of the hanging rod mechanism (3) are arranged on both sides of the hanging lug plate B (1-4), and the hanging lug plate B (1-4) is installed on the U-shaped clamp (3-2) through a pin shaft (3-1), each hanging lug plate A (1-5) is provided with a hanging rod mechanism (3) above, and the side walls of the bottom opening end of the U-shaped clamp (3-2) of the hanging rod mechanism (3) are arranged on both sides of the hanging lug plate A (1-5), and the hanging lug plate A (1-5) is installed on the U-shaped clamp (3-2) through a pin shaft (3-1).

2. According to claim 1, a large-capacity garbage waste heat boiler header tube panel support and suspension device is characterized in that: The sliding support (2) comprises a support plate (2-1), a bottom plate A (2-2), a bottom plate B (2-3), two reinforcing plates (2-4) and four limit plates (2-5); the two reinforcing plates (2-4) are symmetrically welded and arranged on both sides of the support plate (2-1), and the bottom end of the support plate (2-1) and the bottom ends of the two reinforcing plates (2-4) are welded and fixedly installed on the upper end surface of the bottom plate A (2-2), the bottom plate A (2-2) is arranged above the bottom plate B (2-3), and the four limit plates (2-5) are symmetrically arranged on the upper end surface of the bottom plate B (2-3), the limit ends of the tops of the limit plates (2-5) are arranged above the bottom plate A (2-2), and the bottom plate B (2-3) is welded and installed on the upper end surface of the channel steel C (1-3).

3. According to claim 2, a large-capacity garbage waste heat boiler header tube panel support and suspension device is characterized in that: The sliding support (2) further comprises two rib plates (2-6); the two rib plates (2-6) are relatively and parallelly installed in the channel steel C (1-3) below the bottom plate B (2-3).

4. According to claim 1, a large-capacity garbage waste heat boiler header tube panel support and suspension device is characterized in that: The locking nut (3-5) at the bottom end of the suspension rod (3-3) is arranged above the U-shaped clamp (3-2).

5. According to claim 1, a large-capacity garbage waste heat boiler header tube panel support and suspension device is characterized in that: The locking nut (3-5) at the top end of the suspension rod (3-3) is arranged above the fixing nut (3-4).

6. According to claim 1, a large-capacity garbage waste heat boiler header tube panel support and suspension device is characterized in that: A plurality of sliding supports (2) are symmetrically mounted on the top plate (1) in two rows, and each header (5) is mounted on a row of sliding supports (2). superior.

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