Boiler water-cooled wall lower header fixing structure

Abstract

The invention relates to a boiler water-cooled wall lower header fixing structure which comprises a mounting plate and a fixing plate, the fixing plate is arranged below the mounting plate, a set of adjusting assemblies are symmetrically arranged on the upper surface of the fixing plate, and the adjusting assemblies are connected with the mounting plate through supporting assemblies. The height change adjustment of the mounting plate relative to the fixing plate is realized through the matching of the adjusting assembly and the supporting assembly; a set of fixing assemblies are symmetrically arranged below the fixing plate, the fixing assemblies are installed on the outer wall of the barrel in a sleeving mode to achieve fixing and supporting of the water-cooled wall lower header, and the set of fixing assemblies achieve relative displacement through a translation assembly located on the lower surface of the fixing plate to change the distance. The device has the advantages of being simple and reasonable in structure, good in using effect, high in flexibility, convenient and fast to install and convenient and fast to adjust.

Description

Technical Field

[0001] This invention belongs to the technical field of boiler appliances, specifically relating to a fixing structure for the lower header of a boiler water-cooled wall. Background Technology

[0002] To improve boiler efficiency, cylindrical boilers have gradually evolved into tubular boilers to increase the heat transfer area. Boiler water flows from the boiler drum into the lower casing through downcomers, and is then distributed to the tube bundles. The water in these tube bundles continuously absorbs heat energy, collects in the upper casing, and then flows back into the boiler drum. The upper and lower casings are called headers or manifolds. The header is an important component of the boiler, divided into upper and lower headers. Based on their location, they are classified as upper and lower headers or inlet and outlet headers. Based on the type of tube bundles they collect, they are classified as water-cooled wall headers, superheater headers, economizer headers, etc. Existing boiler water-cooled wall lower header fixing structures generally involve directly welding mounting bases to the boiler drum for fixing. However, in actual use, the angle and position of the welded mounting bases are not adjustable, resulting in poor installation convenience and failing to meet user needs. Therefore, it is essential to provide a boiler water-cooled wall lower header fixing structure that is simple and reasonable in structure, has good performance, high flexibility, convenient installation, and quick and easy adjustment. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a boiler water-cooled wall lower header fixing structure that is simple and reasonable in structure, has good performance, high flexibility, convenient installation, and convenient and quick adjustment.

[0004] The objective of this invention is achieved as follows: a fixing structure for the lower header of a boiler water-cooled wall, comprising an mounting plate and a fixing plate, wherein the fixing plate is disposed below the mounting plate, and a set of adjusting components are symmetrically arranged on the upper surface of the fixing plate, each adjusting component being connected to the mounting plate via a supporting component, thereby adjusting the height of the mounting plate relative to the fixing plate through the cooperation of the adjusting components and the supporting components; a set of fixing components is symmetrically arranged below the fixing plate, which is fitted onto the outer wall of the boiler shell to provide fixed support for the lower header of the water-cooled wall, and the set of fixing components achieves relative displacement and changes the spacing through a translation component located on the lower surface of the fixing plate.

[0005] The adjustment assembly includes a right-angle plate, a horizontal plate on one side of the right-angle plate, a slide plate slidably mounted on the horizontal plate, a nut seat mounted on the top of the slide plate, a screw mounted inside the nut seat, and a drive motor powered through one end of the screw that passes through the right-angle plate.

[0006] The right-angle plate and the horizontal plate together form an "F" shape, and the screw has a "T" shape.

[0007] In this invention, simultaneously activating two drive motors enables the rotation of two screws, thereby allowing the two sliding plates on both sides to move towards or away from each other, thus achieving adjustment of the overall height of the device; activating the left drive motor or the right drive motor alone enables a change in the height of one side of the device, thereby achieving adjustment of the overall angle of the device.

[0008] The support assembly includes a diagonal brace, a support rod is movably installed in the middle of the diagonal brace, the support rod is movably connected to an L-shaped plate, and the L-shaped plate is arranged on the front and rear sides of the fixed plate.

[0009] One end of the diagonal brace is connected to the lower surface of the mounting plate via a hinged seat, and the other end is movably connected to the sliding plate; a group of L-shaped plates are connected by a rotating shaft, and the support rod is connected to the rotating shaft.

[0010] In this invention, the support component serves as the power transmission device for the adjustment component. When the adjustment component moves, it drives the diagonal brace and the support rod to move, thereby realizing the height adjustment of the mounting plate to meet different installation requirements.

[0011] The translation component includes side plates located on both sides of the lower surface of the fixed plate. A driver is installed on one of the side plates. The driver is powered by a bidirectional lead screw. A guide rod is provided on both sides of the bidirectional lead screw. The bidirectional lead screw and the guide rod are connected to the corresponding fixed components.

[0012] In this invention, the translation component can adjust the distance between the two fixed components, thereby fixing cylinders of different lengths and allowing for flexible adjustment.

[0013] The fixing component includes an annular fixing member, a servo motor is arranged on the upper side of the annular fixing member, the shaft of the servo motor is connected to a worm gear, and a worm wheel as a power input is arranged on the upper part of the worm gear.

[0014] The annular fixing member has a drive gear connected to the worm wheel shaft located at the upper part of the interior corresponding to the worm wheel. The annular fixing member also has multiple driven gears inside, and the driven gears and the drive gears transmit power through a transmission belt.

[0015] There are three driven gears inside the annular fixing member, and the three driven gears are arranged in a rectangular structure with the driving gear.

[0016] The driven gear and the driving gear are internally meshed with an external gear ring. A rectangular frame plate is provided inside the external gear ring. Multiple linear drive devices are evenly spaced on the rectangular frame plate. The output end of the linear drive device is connected to a positioning plate.

[0017] In this invention, the fixing component can not only fasten cylinders of different sizes, but also rotate and adjust the cylinders after fastening, making it convenient to rotate and adjust the cylinders according to actual installation requirements.

[0018] The beneficial effects of this invention are as follows: This invention is a fixing structure for the lower header of a boiler water-cooled wall. In use, the fixing component consists of a ring-shaped fixing member and a positioning plate. A linear drive device drives the positioning plate to move, so that the positioning plate is reliably clamped on the outer wall of the cylinder. The mounting plate is connected to the fixing plate through an adjusting component and a supporting component. During use, the horizontal movement of the fixing component can be driven by the translation component to adjust the spacing between a group of fixing components, which facilitates the installation and fixing of the fixing component with cylinders of different lengths, improving its actual use effect. Furthermore, worm gears and worm shafts are also provided. After the position of the mounting plate and the fixing component is adjusted, the external gear ring is rotated by the worm gear and worm shaft, causing the cylinder located inside the positioning plate to rotate, which facilitates the installation requirements of the cylinder in different directions. This invention has the advantages of simple and reasonable structure, good use effect, high flexibility, convenient installation, and convenient and quick adjustment. Attached Figure Description

[0019] Figure 1 This is a front view of the present invention.

[0020] Figure 2 For the present invention Figure 1 Partial three-dimensional structural diagram.

[0021] Figure 3 For the present invention Figure 1 A partial front view of the structure.

[0022] Figure 4 For the present invention Figure 3 A three-dimensional image.

[0023] Figure 5 This is a schematic diagram of the internal structure of the fixing component of the present invention.

[0024] In the diagram: 1. Mounting plate; 2. Adjustment assembly; 21. Right-angle plate; 22. Horizontal plate; 23. Slide plate; 24. Nut seat; 25. Screw; 26. Drive motor; 3. Support assembly; 31. Diagonal brace; 32. Hinge seat; 33. Support rod; 34. L-shaped plate; 35. Rotating shaft; 4. Fixing plate; 5. Translation assembly; 51. Side plate; 52. Driver; 53. Two-way lead screw; 54. Smooth rod; 6. Fixing assembly; 61. Ring fastener; 62. Servo motor; 63. Worm gear; 64. Worm wheel; 65. Drive gear; 66. Driven gear; 67. Transmission belt; 68. External gear ring; 69. Rectangular frame plate; 601. Linear drive device; 602. Positioning plate. Detailed Implementation

[0025] The present invention will be further described below with reference to the embodiments and / or accompanying drawings. Example 1

[0026] like Figure 1-5 As shown, a boiler water-cooled wall lower header fixing structure includes an mounting plate 1 and a fixing plate 4. The fixing plate 4 is disposed below the mounting plate 1. A set of adjusting components 2 are symmetrically arranged on the upper surface of the fixing plate 4. Each adjusting component 2 is connected to the mounting plate 1 through a supporting component 3. The height of the mounting plate 1 relative to the fixing plate 4 is adjusted by the cooperation of the adjusting components 2 and the supporting components 3. A set of fixing components 6 are symmetrically arranged below the fixing plate 4. The fixing components 6 are sleeved and installed on the outer wall of the boiler to fix and support the lower header of the water-cooled wall. The set of fixing components 6 achieves relative displacement and changes the spacing through a translation component 5 located on the lower surface of the fixing plate 4.

[0027] The adjustment component 2 includes a right-angle plate 21, a horizontal plate 22 is provided on one side of the right-angle plate 21, a sliding plate 23 is slidably mounted on the horizontal plate 22, a nut seat 24 is mounted on the top of the sliding plate 23, a screw 25 is installed inside the nut seat 24, and a drive motor 26 is powered to one end of the screw 25 that passes through the right-angle plate 21.

[0028] The right-angle plate 21 and the horizontal plate 22 together form an "F" shape, and the screw 25 has a "T" shape.

[0029] In this embodiment, two drive motors are activated simultaneously, enabling the rotation of two screws. Under the action of the screws, the sliding plates move on the horizontal plate, allowing the sliding plates on both sides to move towards or away from each other. This achieves adjustment of the overall height of the device, specifically the overall height of the mounting plate and the fixing plate. When the lower header's cylinder is not at the same height as the installation position, or when the installation height needs adjustment, the lower header's cylinder is first fixed using the fixing components. Then, the height of the mounting plate is adjusted using the adjusting components, allowing the mounting plate to be installed and fixed. This allows for installation at different heights, greatly improving practicality and flexibility. When the drive motor on one side is started independently, the height of one end of the mounting plate can change, causing the mounting plate to tilt upwards or downwards, thus adjusting the angle of the mounting plate. When the fixing components are used to fix the lower header cylinder, if the mounting plate is not on a plane (but on an inclined plane) or the heights at both ends of the mounting position are inconsistent, the angle of the mounting plate can be adjusted using the adjustment components on one side. This facilitates meeting various installation needs and greatly improves the overall versatility and applicability of the device.

[0030] The support assembly 3 includes a diagonal brace 31, and a support rod 33 is movably installed in the middle of the diagonal brace 31. The support rod 33 is movably connected to an L-shaped plate 34, and the L-shaped plate 34 is arranged on the front and rear sides of the fixed plate 4.

[0031] One end of the diagonal brace 31 is connected to the lower surface of the mounting plate 1 via a hinge seat 32, and the other end is movably connected to the sliding plate 23; a group of L-shaped plates 34 are connected by a rotating shaft 35, and the support rod 33 is connected to the rotating shaft 35.

[0032] In this embodiment, when the sliding plate of the adjusting component moves outward on the horizontal plate (the T-screw restricts the displacement of the sliding plate on the horizontal plate to prevent the sliding plate from slipping off the horizontal plate), the horizontal plate will drive the lower end of the diagonal brace to move outward synchronously. Since the upper end of the diagonal brace is connected to the mounting plate through a hinge seat, and a support rod is movably installed in the middle, and the support rod is connected to the rotating shaft, when the horizontal plate drives the lower end of the diagonal brace to move outward, under the support of the support rod (the support rod rotates around the rotating shaft as the axis of rotation), the upper end of the diagonal brace lifts the mounting plate upward, thereby allowing the overall height or angle of the mounting plate to be adjusted, which facilitates the installation and fixation of the mounting plate with inclined surfaces of different angles.

[0033] This invention relates to a fixing structure for the lower header of a boiler water-cooled wall. In use, the fixing component 6 consists of an annular fixing member 61 and a positioning plate 602. A linear drive device 601 drives the positioning plate 602 to reliably clamp onto the outer wall of the cylinder. The mounting plate 1 is connected to the fixing plate 4 via an adjusting component 2 and a supporting component 3. During use, the translation component 5 can be used to drive the fixing component 6 to move horizontally, adjusting the spacing between a set of fixing components 6. This facilitates the installation and fixing of the fixing component 6 with cylinders of different lengths, improving its practical performance. Furthermore, components such as a worm gear 64 and a worm 63 are provided. After the positions of the mounting plate 1 and the fixing component 6 are adjusted, the worm gear 64 and the worm 63 drive the external gear ring 68 to rotate, causing the cylinder located inside the positioning plate 602 to rotate, facilitating installation in different directions for the cylinder. This invention has the advantages of simple and reasonable structure, good performance, high flexibility, convenient installation, and quick and easy adjustment. Example 2

[0034] like Figure 1-5As shown, a boiler water-cooled wall lower header fixing structure includes an mounting plate 1 and a fixing plate 4. The fixing plate 4 is disposed below the mounting plate 1. A set of adjusting components 2 are symmetrically arranged on the upper surface of the fixing plate 4. Each adjusting component 2 is connected to the mounting plate 1 through a supporting component 3. The height of the mounting plate 1 relative to the fixing plate 4 is adjusted by the cooperation of the adjusting components 2 and the supporting components 3. A set of fixing components 6 are symmetrically arranged below the fixing plate 4. The fixing components 6 are sleeved and installed on the outer wall of the boiler to fix and support the lower header of the water-cooled wall. The set of fixing components 6 achieves relative displacement and changes the spacing through a translation component 5 located on the lower surface of the fixing plate 4.

[0035] The translation component 5 includes side plates 51 located on both sides of the lower surface of the fixed plate 4. One of the side plates 51 is equipped with a driver 52. The driver 52 is poweredly connected to a bidirectional lead screw 53. Both sides of the bidirectional lead screw 53 are provided with guide rods 54. The bidirectional lead screw 53 and the guide rods 54 are connected to the corresponding fixed components 6.

[0036] In this embodiment, the driver is activated, which drives the bidirectional lead screw to rotate. The bidirectional lead screw causes the two fixed components to move closer to or further away from each other, thereby changing the distance between the two fixed components. This facilitates adaptive adjustment according to the different lengths of the lower header cylinder. Two guide rods are provided, and the two guide rods are located on both sides of the bidirectional lead screw to ensure that the fixed components move smoothly and reliably.

[0037] The fixing component 6 includes an annular fixing member 61, a servo motor 62 is arranged on the upper side of the annular fixing member 61, the shaft of the servo motor 62 is connected to a worm gear 63, and a worm wheel 64 as a power input is arranged on the upper side of the worm gear 63.

[0038] Inside the annular fixing member 61, at the position corresponding to the worm wheel 64, there is a driving gear 65 connected to the shaft of the worm wheel 64. Inside the annular fixing member 61, there are multiple driven gears 66. The driven gears 66 and the driving gear 65 are connected by a transmission belt 67 to achieve power transmission.

[0039] Three driven gears 66 are provided inside the annular fixing member 61, and the three driven gears 66 and the driving gear 65 are arranged in a rectangular structure.

[0040] In this embodiment, the servo motor is started, and the servo motor drives the worm wheel to rotate through the worm gear. The worm wheel drives the drive gear to rotate, and the drive gear drives multiple driven gears to rotate through the transmission belt or synchronous belt. Since both the drive gear and the driven gears mesh with the external gear ring, the external gear ring is driven to rotate synchronously through the drive gear and multiple driven gears. When the external gear ring rotates, it will drive the lower header cylinder, which is located inside the annular fixed part and is fixed by the positioning plate, to rotate. This facilitates the rotation adjustment of the lower header cylinder according to the connection direction of the small pipe joints that are conductively connected on the outer wall of the lower header cylinder.

[0041] The driven gear 66 and the driving gear 65 are internally meshed with an external gear ring 68. The external gear ring 68 is internally provided with a rectangular frame plate 69. Multiple linear drive devices 601 are evenly spaced on the rectangular frame plate 69. The output end of the linear drive device 601 is connected to a positioning plate 602.

[0042] In this embodiment, the linear drive device may be a lead screw drive structure (including trapezoidal lead screw, ball screw, roller lead screw, etc.), a synchronous belt drive conversion linear drive device, an electric push rod / electric cylinder, a linear cylinder, a gear and rack structure, or an electromagnetic linear drive device, or other devices or structures that can achieve the same function.

[0043] The linear drive device drives the positioning plate to move inward, reliably clamping and fixing the lower header cylinder through the positioning plate (in actual use, to further improve the overall mechanical strength and stability, after the positioning plate effectively clamps and fixes the lower header cylinder, the positioning plate is welded to the lower header cylinder). By changing the position of the positioning plate through the linear drive device, lower header cylinders of different sizes can be fastened. Since there are multiple linear drive devices and positioning plates, one or more linear drive devices and positioning plates can be adjusted according to needs, which is convenient for fixing lower header cylinders with variable diameters or irregular circumferential surfaces, and can be flexibly adjusted.

[0044] This invention relates to a fixing structure for the lower header of a boiler water-cooled wall. In use, the fixing component 6 consists of an annular fixing member 61 and a positioning plate 602. A linear drive device 601 drives the positioning plate 602 to reliably clamp onto the outer wall of the cylinder. The mounting plate 1 is connected to the fixing plate 4 via an adjusting component 2 and a supporting component 3. During use, the translation component 5 can be used to drive the fixing component 6 to move horizontally, adjusting the spacing between a set of fixing components 6. This facilitates the installation and fixing of the fixing component 6 with cylinders of different lengths, improving its practical performance. Furthermore, components such as a worm gear 64 and a worm 63 are provided. After the positions of the mounting plate 1 and the fixing component 6 are adjusted, the worm gear 64 and the worm 63 drive the external gear ring 68 to rotate, causing the cylinder located inside the positioning plate 602 to rotate, facilitating installation in different directions for the cylinder. This invention has the advantages of simple and reasonable structure, good performance, high flexibility, convenient installation, and quick and easy adjustment.

Claims

1. A fixing structure for the lower header of a boiler water-cooled wall, comprising a mounting plate and a fixing plate, characterized in that: A fixing plate is provided below the mounting plate. A set of adjustment components is symmetrically arranged on the upper surface of the fixing plate. Each adjustment component is connected to the mounting plate through a support component. The height of the mounting plate relative to the fixing plate is adjusted by the cooperation of the adjustment components and the support components. A set of fixing components is symmetrically arranged below the fixing plate. The fixing components are sleeved on the outer wall of the cylinder to provide fixed support for the lower header of the water-cooled wall. The fixing components are relatively displaced by a translation component located on the lower surface of the fixing plate to change the spacing.

2. The boiler water-cooled wall lower header fixing structure as described in claim 1, characterized in that: The adjustment assembly includes a right-angle plate, a horizontal plate on one side of the right-angle plate, a slide plate slidably mounted on the horizontal plate, a nut seat mounted on the top of the slide plate, a screw mounted inside the nut seat, and a drive motor powered through one end of the screw that passes through the right-angle plate.

3. The boiler water-cooled wall lower header fixing structure as described in claim 2, characterized in that: The right-angle plate and the horizontal plate together form an "F" shape, and the screw has a "T" shape.

4. The boiler water-cooled wall lower header fixing structure as described in claim 2, characterized in that: The support assembly includes a diagonal brace, a support rod is movably installed in the middle of the diagonal brace, the support rod is movably connected to an L-shaped plate, and the L-shaped plate is arranged on the front and rear sides of the fixed plate.

5. The boiler water-cooled wall lower header fixing structure as described in claim 4, characterized in that: One end of the diagonal brace is connected to the lower surface of the mounting plate via a hinged seat, and the other end is movably connected to the sliding plate; a group of L-shaped plates are connected by a rotating shaft, and the support rod is connected to the rotating shaft.

6. The boiler water-cooled wall lower header fixing structure as described in claim 4, characterized in that: The translation component includes side plates located on both sides of the lower surface of the fixed plate. A driver is installed on one of the side plates. The driver is powered by a bidirectional lead screw. A guide rod is provided on both sides of the bidirectional lead screw. The bidirectional lead screw and the guide rod are connected to the corresponding fixed components.

7. The boiler water-cooled wall lower header fixing structure as described in claim 6, characterized in that: The fixing component includes an annular fixing member, a servo motor is arranged on the upper side of the annular fixing member, the shaft of the servo motor is connected to a worm gear, and a worm wheel as a power input is arranged on the upper part of the worm gear.

8. The boiler water-cooled wall lower header fixing structure as described in claim 7, characterized in that: The annular fixing member has a drive gear connected to the worm wheel shaft located at the upper part of the interior corresponding to the worm wheel. The annular fixing member also has multiple driven gears inside, and the driven gears and the drive gears transmit power through a transmission belt.

9. The boiler water-cooled wall lower header fixing structure as described in claim 8, characterized in that: There are three driven gears inside the annular fixing member, and the three driven gears are arranged in a rectangular structure with the driving gear.

10. The boiler water-cooled wall lower header fixing structure as described in claim 9, characterized in that: The driven gear and the driving gear are internally meshed with an external gear ring. A rectangular frame plate is provided inside the external gear ring. Multiple linear drive devices are evenly spaced on the rectangular frame plate. The output end of the linear drive device is connected to a positioning plate.

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