A vacuum coating device for flue gas heat exchangers

Abstract

This invention relates to the field of vacuum coating technology and provides a vacuum coating equipment for flue gas heat exchangers. The equipment includes a coating body for coating the outer surface of the flue gas heat exchanger and is adaptable to various specifications of flue gas heat exchangers. A support frame is fixedly connected to the bottom of the coating body for support. A control device is located on one side of the coating body for controlling the entire coating equipment. This invention, through its coating body, can adapt to the coating processing of different models of flue gas heat exchangers, allowing for fine-tuning of the spraying position and stroke, solving the problem of space limitations and avoiding the issue of insufficient space for the flue gas heat exchanger. The control device integrates adjustment buttons and limit structures, simplifying equipment start-up and shutdown, parameter adjustment steps, and allowing operators to easily switch operating conditions and perform daily operations, reducing operational difficulty.

Description

Technical Field

[0001] This invention belongs to the field of vacuum coating technology, and particularly relates to a vacuum coating device for flue gas heat exchangers. Background Technology

[0002] With the continuous upgrading of industrial flue gas waste heat recovery and utilization technology, flue gas heat exchangers, as the core equipment of waste heat recovery systems, are widely used in thermal power, chemical, metallurgical and other industrial fields. Flue gas heat exchangers are in long-term contact with high-temperature flue gas containing sulfur, dust and water vapor. The heat exchange substrate is prone to corrosion, scaling and wear, which will significantly reduce heat exchange efficiency, shorten equipment life, and increase equipment operation and maintenance costs and downtime losses.

[0003] In the existing anti-corrosion coating process for flue gas heat exchangers, conventional coating equipment has poor versatility, making it difficult to adapt to various workpiece specifications. It is also limited by space, making it impossible to place the flue gas heat exchanger inside the coating equipment.

[0004] The existing equipment has a rudimentary workpiece positioning method and insufficient lifting and adjustment precision. The distance between the heat exchanger workpiece and the spraying mechanism cannot be uniform after the workpiece is lifted and lowered, and the spraying distance is inconsistent, which further aggravates the problem of poor coating uniformity and the quality of the finished coating is uneven.

[0005] Traditional tooling clamps and fixes the workpiece from the outside of the heat exchanger wall. The clamps cover the outer surface of the workpiece, creating a blind spot for coating. This prevents the complete application of the anti-corrosion coating, resulting in substandard product protection performance and a high scrap rate. Summary of the Invention

[0006] The purpose of this invention is to provide a vacuum coating device for flue gas heat exchangers, aiming to solve the problems in the prior art.

[0007] The embodiments of the present invention are implemented as follows:

[0008] A vacuum coating equipment for a flue gas heat exchanger includes a coating body for coating the outer side of the flue gas heat exchanger and is adaptable to flue gas heat exchangers of various specifications. A support frame is fixedly connected to the bottom side of the coating body for supporting the coating body. A control device is provided on one side of the coating body for controlling the entire coating equipment.

[0009] A lifting component is provided at the center of the top side of the coating body. A connecting housing is provided at the bottom of the lifting component. A clamping and fixing component is provided at the bottom of the connecting housing. Both the connecting housing and the clamping and fixing component are located inside the coating body. The lifting component drives the clamping and fixing component to move vertically inside the coating body through the connecting housing.

[0010] Preferably, the lifting assembly includes a mounting housing, which is fixedly connected to the center of the top side of the coating body and penetrates through the coating body. A lifting cylinder is fixedly installed on the inner wall of the bottom side of the coating body. The piston rod of the lifting cylinder penetrates through the mounting housing and is slidably connected. The piston rod end of the lifting cylinder is fixedly connected to the center of the top side of the mounting housing.

[0011] Preferably, the clamping and fixing assembly includes a mounting plate, which is fixedly installed at the center of the bottom side of the connecting housing. A clamping cylinder is fixedly installed at the center of the top side of the mounting plate. The piston rod of the clamping cylinder passes through the mounting plate and is slidably connected. A connecting rod is fixedly connected to the end of the piston rod of the clamping cylinder. A drive plate is fixedly connected to the bottom end of the connecting rod. The clamping cylinder drives the drive plate to move vertically through the connecting rod.

[0012] Preferably, a plurality of support plates are fixedly connected to the bottom side of the mounting plate. The plurality of support plates are arrayed around the center point of the bottom side of the mounting plate. Two first limiting rotating members are fixedly connected to one side of each support plate. The two first limiting rotating members are symmetrically arranged. A first limiting rotating shaft is rotatably connected between the two first limiting rotating members. A limiting strip is fixedly connected to the outside of the first limiting rotating shaft. The two limiting strips are parallel and symmetrically arranged. A second limiting rotating shaft is fixedly connected between the two limiting strips at a position away from the first limiting rotating shaft. The two ends of the second limiting rotating shaft pass through the two limiting strips respectively. A second limiting rotating member is rotatably connected to the outside of the two second limiting rotating shafts at both ends.

[0013] Preferably, each of the support plates has two first driving rotating members fixedly connected to one side at the bottom position of the two first limiting rotating members. The two first driving rotating members are symmetrically arranged. A first driving rotating shaft is rotatably connected between the two first driving rotating members. A driving bar is fixedly connected to the outside of the first driving rotating shaft. The two driving bars are arranged in parallel and symmetrically. A second driving rotating shaft is fixedly connected between the two driving bars at a position away from the first driving rotating shaft. The two ends of the second driving rotating shaft pass through the two driving bars respectively. A second driving rotating member is rotatably connected to the outside of the two second driving rotating shafts at both ends.

[0014] Preferably, a first extrusion rotating shaft is rotatably connected between each two drive bars at the middle position. An extrusion bar is fixedly connected to the outside of the first extrusion rotating shaft. The extrusion bar is located between the two drive bars. A second extrusion rotating shaft is fixedly connected to the other end of the extrusion bar. Extrusion rotating components are rotatably connected to both ends of the second extrusion rotating shaft.

[0015] Preferably, the clamping and fixing assembly further includes a plurality of extrusion plates, each of the extrusion plates being fixedly connected on one side to two of the mounting plates and two of the second driving rotating components, and the corresponding two extrusion rotating components being fixedly connected on one side of the second driving rotating shaft.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The present invention can adapt to the coating processing of different models of flue gas heat exchangers by setting the coating body, and can finely adjust the spraying position and stroke to solve the problem of space limitation and avoid the problem of flue gas heat exchangers not being able to fit; with the control device control component, the adjustment button and limit structure are integrated to simplify the equipment start-up and shutdown and parameter debugging steps, and the staff can easily complete the switching of working conditions and daily operation, reducing the difficulty of operation.

[0018] 2. The present invention drives the connecting shell bearing mechanism to rise and fall vertically through the clamping and fixing component driving component, and simultaneously lifts the flue gas heat exchanger to move up and down smoothly, accurately sending the workpiece into the designated coating station. By relying on the precise control of the lifting stroke, the outer wall of the heat exchanger and the coating body are kept at a constant distance, avoiding the coating thickness deviation caused by different distances, and ensuring that the coating on the overall outer surface of the heat exchanger is uniform and flat.

[0019] 3. This invention achieves clamping and fixation from within the flue gas heat exchanger through a specially designed connecting shell, eliminating the need for traditional external clamping. External clamps easily obstruct the outer wall of the shell, creating dead zones for coating. This solution, with its internal wall limiting, does not occupy the outer coating surface of the workpiece. During spraying, the outer wall of the heat exchanger remains unobstructed, allowing the coating mechanism to completely cover the outer surface, thoroughly eliminating coating blind spots and improving coating integrity and product coating quality. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram provided for an embodiment of the present invention;

[0021] Figure 2 Provided for embodiments of the present invention Figure 1 Cross-sectional structural diagram;

[0022] Figure 3 This is a cross-sectional view of the lifting assembly provided in an embodiment of the present invention;

[0023] Figure 4 The diagram shows a cross-sectional view of the connecting housing and a structural diagram of the clamping and fixing assembly provided in the embodiments of the present invention.

[0024] Figure 5 This is a structural diagram of the clamping and fixing assembly provided in an embodiment of the present invention;

[0025] Figure 6 Provided for embodiments of the present invention Figure 5 Partial structural diagram.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Coating body;

[0028] 200. Support frame;

[0029] 300. Control device;

[0030] 400. Lifting assembly; 401. Mounting housing; 402. Lifting cylinder;

[0031] 500. Connecting housing;

[0032] 600. Clamping and fixing assembly; 601. Mounting plate; 602. Clamping cylinder; 603. Connecting rod; 604. Drive plate; 605. Support plate; 606. First limiting rotating component; 607. First limiting rotating shaft; 608. Limiting strip; 609. Second limiting rotating shaft; 610. Second limiting rotating component; 611. First driving rotating component; 612. First driving rotating shaft; 613. Drive strip; 614. Second driving rotating shaft; 615. Second driving rotating component; 616. First extrusion rotating shaft; 617. Extrusion strip; 618. Second extrusion rotating shaft; 619. Extrusion rotating component; 620. Extrusion plate. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1-6 The present invention provides a technical solution: a vacuum coating equipment for a flue gas heat exchanger, comprising a coating body 100, which is used for coating the outside of the flue gas heat exchanger and is adaptable to flue gas heat exchangers of various specifications. A support frame 200 is fixedly connected to the bottom side of the coating body 100 for supporting the coating body 100. A control device 300 is provided on one side of the coating body 100 for controlling the entire coating equipment.

[0035] A lifting assembly 400 is provided at the center of the top side of the coating body 100. A connecting housing 500 is provided at the bottom of the lifting assembly 400. A clamping and fixing assembly 600 is provided at the bottom of the connecting housing 500. Both the connecting housing 500 and the clamping and fixing assembly 600 are located inside the coating body 100. The lifting assembly 400 drives the clamping and fixing assembly 600 to move vertically inside the coating body 100 through the connecting housing 500.

[0036] In practical application, this embodiment utilizes a support frame 200 at the bottom of the coating body 100 to ensure it remains stationary during operation, thus preventing any impact on coating accuracy. A control device 300 on one side of the coating body 100 controls the entire coating equipment and allows for parameter adjustment and start / stop. A lifting assembly 400 drives the connecting housing 500 and the clamping and fixing assembly 600 to move vertically, ensuring the flue gas heat exchanger is located within the coating area. The clamping and fixing assembly 600 secures the flue gas heat exchanger from within, preventing blind spots during coating. The combination of the coating body 100, lifting assembly 400, and clamping and fixing assembly 600 increases the internal space of the coating equipment, accommodating various specifications of flue gas heat exchangers. The lifting assembly 400 and clamping and fixing assembly 600 can raise, lower, and fix the flue gas heat exchanger, ensuring coating efficiency.

[0037] Please see Figure 1-3 The lifting assembly 400 includes a mounting housing 401, which is fixedly connected to the center of the top side of the coating body 100 and penetrates through the coating body 100. A lifting cylinder 402 is fixedly installed on the inner wall of the bottom side of the coating body 100. The piston rod of the lifting cylinder 402 penetrates through the mounting housing 401 and is slidably connected. The piston rod end of the lifting cylinder 402 is fixedly connected to the center of the top side of the connecting housing 500.

[0038] In practical application, the mounting housing 401 facilitates the installation of the lifting cylinder 402 on the coating body 100. Simultaneously, under the action of the clamping cylinder 602, the connecting housing 500 is driven to move vertically, which in turn drives the clamping and fixing component 600 to move vertically. The clamping and fixing component 600 fixes the flue gas heat exchanger and simultaneously drives the flue gas heat exchanger to move vertically, thus moving the flue gas heat exchanger to the coating area, thereby achieving the effect of lifting and adjusting.

[0039] Please see Figure 4-5 The clamping and fixing assembly 600 includes a mounting plate 601, which is fixedly installed at the center of the bottom side of the connecting housing 500. A clamping cylinder 602 is fixedly installed at the center of the top side of the mounting plate 601. The piston rod of the clamping cylinder 602 passes through the mounting plate 601 and is slidably connected. A connecting rod 603 is fixedly connected to the end of the piston rod of the clamping cylinder 602. A drive plate 604 is fixedly connected to the bottom end of the connecting rod 603. The clamping cylinder 602 drives the drive plate 604 to move vertically through the connecting rod 603.

[0040] In practical application, the clamping cylinder 602 is mounted on the bottom side of the connecting housing 500 via the mounting plate 601. The mounting plate 601 is used for the installation and support of the clamping cylinder 602. The clamping cylinder 602 drives the drive plate 604 to move vertically via the connecting rod 603. At the same time, the connecting rod 603 is used to connect the clamping cylinder 602 and the drive plate 604.

[0041] Please see Figure 4-6 Multiple support plates 605 are fixedly connected to the bottom side of the mounting plate 601. The support plates 605 are arranged in an array around the center point of the bottom side of the mounting plate 601. Two first limiting rotating members 606 are fixedly connected to one side of each support plate 605. The two first limiting rotating members 606 are symmetrically arranged. A first limiting rotating shaft 607 is rotatably connected between the two first limiting rotating members 606. A limiting strip 608 is fixedly connected to the outside of the first limiting rotating shaft 607. The two limiting strips 608 are parallel and symmetrically arranged, and the distance between the two limiting strips 608 is away from the first limiting rotating shaft 607. A second limiting rotating shaft 609 is fixedly connected to the moving shaft 607. Two limiting strips 608 pass through both ends of the second limiting rotating shaft 609. Second limiting rotating members 610 are rotatably connected to the outer sides of both second limiting rotating shafts 609 at their respective ends. Two first driving rotating members 611 are fixedly connected to one side of each support plate 605 at the bottom position of the two first limiting rotating members 606. The two first driving rotating members 611 are symmetrically arranged, and a first driving rotating shaft 612 is rotatably connected between the two first driving rotating members 611. A drive bar 613 is fixedly connected to the outer side of the drive rotating shaft 612. Two drive bars 613 are arranged parallel and symmetrically. A second drive rotating shaft 614 is fixedly connected between the two drive bars 613 at a position away from the first drive rotating shaft 612. Both ends of the second drive rotating shaft 614 pass through the two drive bars 613 respectively. Second drive rotating components 615 are rotatably connected to the outer ends of the two second drive rotating shafts 614. A first extrusion rotating shaft 616 is rotatably connected between each pair of drive bars 613 at a middle position. An extrusion strip 617 is fixedly connected to the outer side of the 16. The extrusion strip 617 is located between two drive strips 613. The other end of the extrusion strip 617 is fixedly connected to a second extrusion rotating shaft 618. Extrusion rotating parts 619 are rotatably connected to both ends of the second extrusion rotating shaft 618. The clamping and fixing assembly 600 also includes multiple extrusion plates 620. One side of each extrusion plate 620 is fixedly connected to two mounting plates 601 and two second drive rotating parts 615. The corresponding two extrusion rotating parts 619 are fixedly connected to one side of the second drive rotating shaft 614.

[0042] In practical application, this embodiment uses multiple support plates 605 to support multiple components on one side of each support plate 605. Two first limiting rotating members 606 and two second limiting rotating members 610 ensure that two limiting bars 608 rotate on the support plate 605 and the pressing plate 620 via the first limiting rotating shaft 607 and the second limiting rotating shaft 609. Furthermore, two first driving rotating members 611 and two second driving rotating members 615 ensure that two driving bars 613 rotate via the first driving rotating member. The moving shaft 612 and the second drive rotating shaft 614 rotate on the support plate 605 and the extrusion plate 620, while the two limiting bars 608 and the two drive bars 613 ensure that the clamping cylinder 602 is always in a vertical state; while the drive plate 604 extrudes the second extrusion rotating shaft 618 through the two extrusion rotating parts 619, so that the second extrusion rotating shaft 618 extrudes the two drive bars 613 through the first extrusion rotating shaft 616, driving the two connecting rods 603 to rotate, so that the clamping cylinder 602 extrudes and fixes the inner wall of the flue gas heat exchanger.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vacuum coating apparatus for flue gas heat exchangers, characterized in that: The equipment includes a coating body (100) for coating the outside of a flue gas heat exchanger and is compatible with flue gas heat exchangers of various specifications. A support frame (200) is fixedly connected to the bottom side of the coating body (100) for supporting the coating body (100). A control device (300) is provided on one side of the coating body (100) for controlling the entire coating equipment. A lifting assembly (400) is provided at the center of the top side of the coating body (100). A connecting housing (500) is provided at the bottom of the lifting assembly (400). A clamping and fixing assembly (600) is provided at the bottom of the connecting housing (500). Both the connecting housing (500) and the clamping and fixing assembly (600) are located inside the coating body (100). The lifting assembly (400) drives the clamping and fixing assembly (600) to move vertically inside the coating body (100) through the connecting housing (500).

2. The vacuum coating equipment for flue gas heat exchangers according to claim 1, characterized in that, The lifting assembly (400) includes a mounting housing (401), which is fixedly connected to the center of the top side of the coating body (100) and penetrates the coating body (100). A lifting cylinder (402) is fixedly installed on the inner wall of the bottom side of the coating body (100). The piston rod of the lifting cylinder (402) penetrates the mounting housing (401) and is slidably connected. The piston rod end of the lifting cylinder (402) is fixedly connected to the center of the top side of the connecting housing (500).

3. The vacuum coating equipment for flue gas heat exchangers according to claim 1, characterized in that, The clamping and fixing assembly (600) includes a mounting plate (601), which is fixedly installed at the center of the bottom side of the connecting housing (500). A clamping cylinder (602) is fixedly installed at the center of the top side of the mounting plate (601). The piston rod of the clamping cylinder (602) passes through the mounting plate (601) and is slidably connected. A connecting rod (603) is fixedly connected to the end of the piston rod of the clamping cylinder (602). A drive plate (604) is fixedly connected to the bottom end of the connecting rod (603). The clamping cylinder (602) drives the drive plate (604) to move vertically through the connecting rod (603).

4. The vacuum coating equipment for a flue gas heat exchanger according to claim 3, characterized in that, The mounting plate (601) is fixedly connected to a plurality of support plates (605) on its bottom side. The plurality of support plates (605) are arrayed around the center point of the bottom side of the mounting plate (601). Each support plate (605) is fixedly connected to two first limiting rotating parts (606) on one side. The two first limiting rotating parts (606) are symmetrically arranged. A first limiting rotating shaft (607) is rotatably connected between the two first limiting rotating parts (606). A limiting strip (608) is fixedly connected to the outside of the first limiting rotating shaft (607). The two limiting strips (608) are parallel and symmetrically arranged. A second limiting rotating shaft (609) is fixedly connected between the two limiting strips (608) at a position away from the first limiting rotating shaft (607). The two ends of the second limiting rotating shaft (609) pass through the two limiting strips (608) respectively. A second limiting rotating part (610) is rotatably connected to the outside of the two second limiting rotating shafts (609) at both ends.

5. A vacuum coating apparatus for a flue gas heat exchanger according to claim 4, characterized in that, Each of the support plates (605) has two first driving rotating parts (611) fixedly connected to the bottom of the two first limiting rotating parts (606) on one side. The two first driving rotating parts (611) are symmetrically arranged. A first driving rotating shaft (612) is rotatably connected between the two first driving rotating parts (611). A driving bar (613) is fixedly connected to the outside of the first driving rotating shaft (612). The two driving bars (613) are parallel and symmetrically arranged. A second driving rotating shaft (614) is fixedly connected between the two driving bars (613) at a position away from the first driving rotating shaft (612). The two ends of the second driving rotating shaft (614) pass through the two driving bars (613) respectively. A second driving rotating part (615) is rotatably connected to the outside of the two second driving rotating shafts (614) at both ends.

6. The vacuum coating equipment for a flue gas heat exchanger according to claim 5, characterized in that, A first extrusion rotating shaft (616) is rotatably connected between each two drive bars (613) at the middle position. An extrusion bar (617) is fixedly connected to the outside of the first extrusion rotating shaft (616). The extrusion bar (617) is located between the two drive bars (613). A second extrusion rotating shaft (618) is fixedly connected to the other end of the extrusion bar (617). Extrusion rotating parts (619) are rotatably connected to both ends of the second extrusion rotating shaft (618).

7. A vacuum coating apparatus for a flue gas heat exchanger according to claim 6, characterized in that, The clamping and fixing assembly (600) further includes a plurality of extrusion plates (620), each of the extrusion plates (620) being fixedly connected on one side to two mounting plates (601) and two second drive rotating members (615), and the corresponding two extrusion rotating members (619) being fixedly connected on one side to the second drive rotating shaft (614).

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