Condenser door cover hoisting support and hoisting equipment

Abstract

The utility model relates to the technical field of hoisting, and discloses a condenser door cover hoisting support which comprises a hoisting cantilever and a vertical column arranged vertically. The hoisting cantilever is rotatably connected to the top end of the stand column, the hoisting cantilever is provided with a hoisting ring for installing the hoisting hoist, and the hoisting ring can rotate to pass through the position over the hoisting connecting point of the end cover; a first installation structure is arranged at the bottom end of the stand column and comprises a base and an installation part arranged at the top of a shell flange of the condenser, the bottom end of the stand column is connected with the base, and the base can be detachably connected to the installation part. The condenser door cover hoisting support is arranged on the top of the condenser by means of the characteristics of the condenser, the condenser door cover hoisting support has the advantages of being small in size and easy to disassemble, the time consumed for hoisting equipment to enter a place is shortened, and the cleaning and maintaining efficiency of the condenser is improved.

Description

Condenser door cover lifting bracket and lifting equipment Technical Field

[0001] This utility model relates to the field of hoisting technology, specifically to a condenser door cover hoisting bracket and hoisting equipment. Background Technology

[0002] Refrigeration units are crucial energy supply equipment in cigarette factories. The condenser installed at the top of the refrigeration unit dissipates heat and cools the high-temperature, high-pressure refrigerant discharged from the compressor. During operation, the cooling water flowing through the copper tubes of the condenser is rich in calcium (Ca), magnesium (Ma) ions, and acidic carbonates. These carbonates gradually deposit on the inner walls of the copper tubes, forming scale. As scale accumulates, the heat exchange efficiency of the condenser decreases, reducing the operating efficiency of the refrigeration unit. Therefore, maintenance personnel need to clean the inside of the condenser regularly.

[0003] Before cleaning operations can be carried out, the doors at both ends of the condenser must be removed to expose its internal structure. However, the compact spatial layout of the refrigeration unit significantly restricts the use of traditional hoisting equipment (such as mobile cranes / gantry cranes). Due to their large size and limited operating radius, traditional hoisting equipment is difficult to access the site and requires complex traffic planning for equipment transfer. The scheduling and preparation of this equipment takes too much time, resulting in low efficiency in the condenser door removal process and thus reducing the efficiency of condenser cleaning and maintenance. Summary of the Invention

[0004] The purpose of this invention is to overcome the problem of low efficiency in condenser door cover disassembly, which leads to reduced efficiency in condenser cleaning and maintenance.

[0005] To achieve the above objectives, this utility model provides a condenser door cover lifting bracket, which includes a lifting cantilever and a vertically arranged column; the lifting cantilever is rotatably connected to the top of the column, and the lifting cantilever is provided with a lifting ring for installing a lifting hoist, and the lifting ring can rotate to pass directly above the lifting connection point of the end cover; the bottom end of the column is provided with a first mounting structure, which includes a base and a mounting part located on the top of the condenser shell flange, the bottom end of the column is connected to the base, and the base can be detachably connected to the mounting part.

[0006] In some embodiments, the base includes a first connecting plate and two clamping plates disposed on both sides of its width direction. The bottom end of the column is connected to the top surface of the first connecting plate. The first connecting plate is pressed against the top surface of the housing flange. The two clamping plates clamp the mounting part in the gap between them. The mounting part and the two clamping plates are provided with coaxial through holes for the first bolt to pass through. The mounting part and the two clamping plates are detachably connected by the first bolt.

[0007] In some embodiments, the mounting portion is located at the C-bevel portion at the top of the housing flange, and the base further includes a second connecting plate. The top of the second connecting plate is connected to the first connecting plate, and the two sides of the second connecting plate are respectively connected to the sides of the two clamping plates in the width direction of the first connecting plate. The first connecting plate, the two clamping plates, and the second connecting plate together cover the C-bevel portion. The second connecting plate is attached to the side of the C-bevel portion.

[0008] In some embodiments, a bushing adapted to the first bolt is provided in the through hole of the mounting part.

[0009] In some embodiments, a plurality of reinforcing ribs are provided between the top surface of the first connecting plate and the bottom end of the column.

[0010] In some embodiments, the condenser door cover lifting bracket further includes a first diagonal bar that is telescopic and lockable, one end of the first diagonal bar being connected to the column via a first hinge, and the other end of the first diagonal bar being rotatably connected to the housing flange via a first rotating assembly.

[0011] In some embodiments, the first inclined rod includes a first sleeve and a movable inclined rod. One end of the movable inclined rod is connected to the column via a first hinge, and the other end of the movable inclined rod is movably inserted into the first sleeve. The first sleeve is rotatably connected to the housing flange via a first rotating assembly. The movable inclined rod is provided with a plurality of evenly distributed adjustment holes along its axial direction. The first sleeve is provided with positioning holes and can be fixed through any of the adjustment holes by a second bolt.

[0012] In some embodiments, the first rotating assembly includes a second hinge and a second mounting structure. The second mounting structure includes a top plate and two fixing plates. The top plate is pressable against the top surface of the housing flange. The two fixing plates are respectively connected to two sides of the top plate in the width direction. The two fixing plates clamp the top of the housing flange in the gap between them and are connected through a third bolt. The first sleeve is connected to the top plate by the second hinge.

[0013] In some embodiments, the column includes a second sleeve and a rotating rod. The bottom end of the second sleeve is connected to the base, and the top end of the rotating rod is connected to a lifting cantilever. The rotating rod can be movably inserted into the cavity of the second sleeve through the opening at the top end of the second sleeve.

[0014] In some embodiments, the condenser door cover lifting bracket further includes a second inclined rod, which connects the lifting cantilever and the rotating rod.

[0015] In another aspect, this utility model provides a hoisting device, which includes the condenser door cover hoisting bracket in the above embodiment.

[0016] The above-mentioned technical solution of this utility model has the following beneficial effects:

[0017] When the end cover needs to be disassembled, workers can install the column on the mounting part at the top of the shell flange using the first mounting structure. Then, the hoist is suspended from the lifting ring of the lifting arm. The lifting ring is rotated to be directly above the lifting connection point of the end cover, and one end of the hoist chain is fixed to the lifting connection point of the end cover. The chain is pulled, and after the end cover is lifted, the lifting arm is rotated to rotate the end cover away from its installation position, thus fully exposing the internal structure of the condenser. To ensure safety, workers can only begin cleaning the condenser after the hoist has lowered the end cover to a level surface. After cleaning, the operation is reversed: the end cover is lifted to the installation height, the lifting arm is rotated to reset the end cover, and then a precise connection is made for installation. This invention utilizes the characteristics of the condenser itself, placing the condenser door cover lifting bracket on its top. It has the advantages of small size and easy disassembly, reducing the time spent bringing lifting equipment to the site and improving the efficiency of condenser cleaning and maintenance. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the condenser door cover hoisting bracket of this utility model;

[0019] Figure 2 is a schematic diagram of the first installation structure of this utility model;

[0020] Figure 3 is a schematic diagram of the first inclined rod of this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Shell flange; 11. Mounting section;

[0023] 2. Column; 21. First mounting structure; 22. Base; 221. First connecting plate; 222. Clamping plate; 223. First bolt; 224. Bushing; 225. Reinforcing rib plate; 23. Second sleeve; 24. Rotating rod; 25. Second diagonal rod;

[0024] 3. Lifting cantilever; 31. Lifting ring;

[0025] 4. First diagonal brace; 41. First hinge; 42. First sleeve; 43. Movable diagonal brace; 44. Adjustment hole; 45. Positioning hole; 46. Second bolt;

[0026] 5. Second mounting structure; 51. Second hinge; 52. Top plate; 53. Fixing plate. Detailed Implementation

[0027] The specific embodiments of this utility model are described in detail below. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0028] In this utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the orientation in the assembled and used state. "Inner" and "outer" refer to the inner and outer sides relative to the outline of each component itself.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0030] It should be noted that the "C-bevel" in this utility model refers to a 45° chamfer machined at the corner of the housing flange 1 to prevent injury from the sharp corners of the housing flange 1 during installation and use. The C-bevel includes two parallel housing flange 1 faces and a side face in the thickness direction of the housing flange 1. This side face includes a first side face located at the top of the housing flange 1, an inclined second side face, and a vertical third side face, which are connected sequentially.

[0031] As shown in Figure 1, this utility model provides a condenser door cover lifting bracket, which includes a lifting cantilever 3 and a vertically arranged column 2. The lifting cantilever 3 is rotatably connected to the top of the column 2. The lifting cantilever 3 is provided with a lifting ring 31 for installing a lifting hoist, and the lifting ring 31 can rotate to pass directly above the lifting connection point of the end cover. The bottom end of the column 2 is provided with a first mounting structure 21, which includes a base 22 and a mounting part 11 located on the top of the shell flange 1 of the condenser. The bottom end of the column 2 is connected to the base 22, and the base 22 can be detachably connected to the mounting part 11.

[0032] Specifically, when the end cover needs to be disassembled, the worker can install the column 2 onto the mounting part 11 on top of the shell flange 1 using the first mounting structure 21, and then suspend the hoist on the lifting ring 31 of the lifting arm 3. The lifting ring 31 is then rotated to be directly above the lifting connection point of the end cover, and one end of the hoist chain is fixed to the lifting connection point of the end cover. The chain is pulled, and after the end cover is lifted, the lifting arm 3 is rotated to rotate the end cover away from its installation position, thus fully exposing the internal structure of the condenser. To ensure safety, the worker can only begin cleaning the condenser after the hoist has lowered the end cover to a level surface. After cleaning, the operation is reversed: the end cover is lifted to the installation height, and the lifting arm 3 is rotated to reset the end cover for precise docking and installation. This utility model utilizes the characteristics of the condenser itself, placing the condenser door cover lifting bracket on its top, which has the advantages of small size and easy disassembly, reducing the time spent bringing lifting equipment to the site and improving the efficiency of condenser cleaning and maintenance.

[0033] As shown in Figure 2, in some embodiments of the utility model, the base 22 includes a first connecting plate 221 and two clamping plates 222 disposed on both sides of its width direction. The bottom end of the column 2 is connected to the top surface of the first connecting plate 221. The first connecting plate 221 is pressed against the top surface of the housing flange 1. The two clamping plates 222 clamp the mounting part 11 in the gap between them. The mounting part 11 and the two clamping plates 222 are respectively provided with coaxial through holes for the first bolt 223 to pass through. The mounting part 11 and the two clamping plates 222 are detachably connected by the first bolt 223.

[0034] Specifically, after the column 2 is installed on the mounting part 11, the bottom surface of the first connecting plate 221 contacts the top surface of the housing flange 1, and the two clamping plates 222 are arranged in parallel and spaced apart, each clamping plate 222 fitting against the side of the mounting part 11 facing it. Furthermore, the symmetrical clamping structure formed by the two clamping plates 222 clamps the mounting part 11 in the space between them, and is tightened by the first bolt 223, which can effectively resist the lateral torque generated during the hoisting operation.

[0035] In some embodiments of the utility model, the mounting part 11 is located at the C-shaped chamfer at the top of the housing flange 1, and the base 22 further includes a second connecting plate. The top of the second connecting plate is connected to the first connecting plate 221, and the two sides of the second connecting plate are respectively connected to the sides of two clamping plates 222 in the width direction of the first connecting plate 221. The first connecting plate 221, the two clamping plates 222 and the second connecting plate together cover the C-shaped chamfer. The second connecting plate is attached to the side of the C-shaped chamfer.

[0036] Specifically, the C-bevel portion includes two parallel shell flange 1 faces and a side face in the thickness direction of the shell flange 1. This side face includes a first side face located at the top of the shell flange 1, an inclined second side face, and a vertical third side face, which are connected sequentially. After the column 2 is installed in the mounting part 11, the first connecting plate 221 contacts the top surface of the C-bevel portion, and the two clamping plates 222 each abut against the shell flange 1 face facing them. The second connecting plate includes a first plate segment, a second plate segment, and a third plate segment connected sequentially, which abut against the first side face, the second side face, and the third side face of the C-bevel portion one by one. The first connecting plate 221, the two clamping plates 222, and the second connecting plate together cover the C-bevel portion, which can share the load in different directions when lifting the end cover, improve the seismic performance of the condenser door cover lifting bracket, and make the lifting more stable.

[0037] In some embodiments of the utility model, in order to extend the service life of the bolt and the through hole of the mounting part 11 and reduce the stress concentration during assembly, a bushing 224 adapted to the first bolt 223 is provided in the through hole of the mounting part 11.

[0038] In some embodiments of the utility model, a plurality of reinforcing ribs 225 are provided between the top surface of the first connecting plate 221 and the bottom end of the column 2, which can enhance the bending and torsional stiffness of the base 22.

[0039] In some embodiments of the utility model, the condenser door cover lifting bracket further includes a first diagonal rod 4 that is telescopic and lockable. One end of the first diagonal rod 4 is connected to the column 2 via a first hinge 41, and the other end of the first diagonal rod 4 is rotatably connected to the housing flange 1 via a first rotating assembly.

[0040] Specifically, the retractable first diagonal bar 4 can adapt its length according to its connection position with the housing flange 1. The first diagonal bar 4 obliquely connects the vertically arranged column 2 and the housing flange 1 to form a triangular stable structure, which can enhance the torsional stiffness of the lower half of the column 2 when lifting the end cover and improve the durability of the condenser door cover lifting bracket.

[0041] In some embodiments, the first rotating assembly is mounted on another C-shaped chamfer of the unconnected base 22 on the top of the housing flange 1. When the condenser door cover lifting bracket is applied to different models of condensers, the telescopic first diagonal bar 4 can adapt to the size of the housing flange 1 of different specifications.

[0042] It should be noted that the first diagonal rod 4, which is retractable and lockable, can be a hydraulic / pneumatic locking rod or a threaded locking telescopic rod. Those skilled in the art can also choose other structures that can achieve the telescopic locking function as needed. This utility model does not impose any restrictions.

[0043] As shown in Figure 3, in some embodiments of the utility model, the first inclined rod 4 includes a first sleeve 42 and a movable inclined rod 43. One end of the movable inclined rod 43 is connected to the column 2 through a first hinge 41, and the other end of the movable inclined rod 43 is movably inserted into the first sleeve 42. The first sleeve 42 is rotatably connected to the housing flange 1 through a first rotating assembly. The movable inclined rod 43 is provided with a plurality of evenly distributed adjustment holes 44 in its axial direction. The first sleeve 42 is provided with a positioning hole 45 and can be fixed through any adjustment hole 44 by a second bolt 46.

[0044] Specifically, after the base 22 is installed onto the housing flange 1, the worker removes the second bolt 46, allowing the first sleeve 42 and the movable diagonal rod 43 to extend and retract relative to each other. The length of the first diagonal rod 4 is adjusted according to the specific installation dimensions, enabling the first sleeve 42 to be connected to the housing flange 1 via the first rotating assembly. Then, the second bolt 46 is passed through the positioning hole 45 and the adjusting hole 44, which is coaxial with the positioning hole 45. After the length of the first diagonal rod 4 is fixed, the first rotating assembly is used to install the first sleeve 42 onto the housing flange 1, so that the first diagonal rod 4 supports the column 2.

[0045] It should be noted that the opening positions of the multiple adjustment holes 44 on the movable inclined rod 43 can be determined based on the required length of the first inclined rod 4 when using the condenser door cover hoisting bracket on different condensers, that is, the length from the position where the first inclined rod 4 is connected to the shell flange 1 to the connection point of the first inclined rod 4 on the column 2.

[0046] In some embodiments of the utility model, the first rotating assembly includes a second hinge 51 and a second mounting structure 5. The second mounting structure 5 includes a top plate 52 and two fixing plates 53. The top plate 52 can be pressed against the top surface of the housing flange 1. The two fixing plates 53 are respectively connected to the two sides of the top plate 52 in the width direction. The two fixing plates 53 clamp the top of the housing flange 1 in the gap between them and are connected by a third bolt. The first sleeve 42 is connected to the top plate 52 through the second hinge 51.

[0047] Specifically, when the first sleeve 42 is connected to the housing flange 1, the second mounting structure 5 is first rotated by the second hinge 51 so that the top of the second mounting structure 5 is parallel to the top surface of the housing flange 1. Then, the second mounting structure 5 is installed to the corresponding position of the housing flange 1, and the two fixing plates 53 and the opening reserved for the third bolt on the housing flange 1 are aligned so that the third bolt passes through and is tightened.

[0048] In some embodiments of the utility model, the column 2 includes a second sleeve 23 and a rotating rod 24. The bottom end of the second sleeve 23 is connected to the base 22, and the top end of the rotating rod 24 is connected to a lifting cantilever 3. The rotating rod 24 can be movably inserted into the cavity of the second sleeve 23 through the opening at the top end of the second sleeve 23.

[0049] Specifically, the outer circumferential surface of the rotating rod 24 contacts the inner wall of the second sleeve 23, and it can slide up and down and rotate circumferentially within the cavity of the second sleeve 23. When installing the condenser door cover lifting bracket, the worker can first install the second sleeve 23 to the shell flange 1 via the base 22, and then insert the rotating rod 24 into the cavity of the second sleeve 23. When lifting the end cover, the rotating rod 24 can drive the end cover to rotate together, so that the end cover leaves its installation position.

[0050] In some embodiments of the utility model, in order to enhance the torsional stiffness of the condenser door cover lifting bracket, the condenser door cover lifting bracket further includes a second inclined rod 25, which is connected between the lifting cantilever 3 and the rotating rod 24.

[0051] One end of the first inclined rod 4 is fixedly connected to the end of the lifting cantilever 3, and the other end is fixedly connected to the rotating rod 24. After the condenser door cover lifting bracket is assembled, the position of the rotating rod 24 connected to the first inclined rod 4 is higher than the opening of the second sleeve 23.

[0052] In another aspect, this utility model provides a hoisting device, which includes the condenser door cover hoisting bracket in the above embodiment, and also has the advantages of the condenser door cover hoisting bracket.

[0053] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0054] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0055] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A condenser door cover lifting bracket, characterized in that, It includes a lifting cantilever (3) and a vertically arranged column (2); the lifting cantilever (3) is rotatably connected to the top of the column (2), the lifting cantilever (3) is provided with a lifting ring (31) for installing a lifting hoist, and the lifting ring (31) can rotate to pass directly above the lifting connection point of the end cover; the bottom end of the column (2) is provided with a first mounting structure (21), the first mounting structure (21) includes a base (22) and a mounting part (11) provided on the top of the shell flange (1) of the condenser, the bottom end of the column (2) is connected to the base (22), and the base (22) can be detachably connected to the mounting part (11).

2. The condenser door cover lifting bracket according to claim 1, characterized in that, The base (22) includes a first connecting plate (221) and two clamping plates (222) located on both sides of its width direction. The bottom end of the column (2) is connected to the top surface of the first connecting plate (221). The first connecting plate (221) is pressed against the top surface of the housing flange (1). The two clamping plates (222) clamp the mounting part (11) in the gap between them. The mounting part (11) and the two clamping plates (222) are respectively provided with coaxial through holes for the first bolt (223) to pass through. The mounting part (11) and the two clamping plates (222) are detachably connected by the first bolt (223).

3. The condenser door cover lifting bracket according to claim 2, characterized in that, The mounting part (11) is located at the C-shaped chamfer at the top of the housing flange (1). The base (22) also includes a second connecting plate. The top of the second connecting plate is connected to the first connecting plate (221). The two sides of the second connecting plate in the width direction of the first connecting plate (221) are respectively connected to the sides of the two clamping plates (222). The first connecting plate (221), the two clamping plates (222) and the second connecting plate together cover the C-shaped chamfer. The second connecting plate is attached to the side of the C-shaped chamfer.

4. The condenser door cover lifting bracket according to claim 3, characterized in that, The mounting part (11) has a bushing (224) adapted to the first bolt (223) in the through hole; and / or, a plurality of reinforcing ribs (225) are provided between the top surface of the first connecting plate (221) and the bottom end of the column (2).

5. The condenser door cover lifting bracket according to claim 1, characterized in that, The condenser door cover lifting bracket also includes a first diagonal bar (4) that is telescopic and lockable. One end of the first diagonal bar (4) is connected to the column (2) via a first hinge (41), and the other end of the first diagonal bar (4) is rotatably connected to the housing flange (1) via a first rotating assembly.

6. The condenser door cover lifting bracket according to claim 5, characterized in that, The first inclined rod (4) includes a first sleeve (42) and a movable inclined rod (43). One end of the movable inclined rod (43) is connected to the column (2) through the first hinge (41), and the other end of the movable inclined rod (43) is movably inserted into the first sleeve (42). The first sleeve (42) is rotatably connected to the housing flange (1) through the first rotating assembly. The movable inclined rod (43) has a plurality of evenly distributed adjustment holes (44) in its axial direction. The first sleeve (42) has a positioning hole (45) and can be fixed through any of the adjustment holes (44) by a second bolt (46).

7. The condenser door cover lifting bracket according to claim 6, characterized in that, The first rotating assembly includes a second hinge (51) and a second mounting structure (5). The second mounting structure (5) includes a top plate (52) and two fixing plates (53). The top plate (52) can be pressed against the top surface of the housing flange (1). The two fixing plates (53) are respectively connected to the two sides of the top plate (52) in the width direction. The two fixing plates (53) sandwich the top of the housing flange (1) in the gap between them and are connected by a third bolt. The first sleeve (42) is connected to the top plate (52) through the second hinge (51).

8. The condenser door cover lifting bracket according to claim 1, characterized in that, The column (2) includes a second sleeve (23) and a rotating rod (24). The bottom end of the second sleeve (23) is connected to the base (22), and the top end of the rotating rod (24) is connected to the lifting cantilever (3). The rotating rod (24) can be movably inserted into the cavity of the second sleeve (23) through the opening at the top end of the second sleeve (23).

9. The condenser door cover lifting bracket according to claim 8, characterized in that, The condenser door cover hoisting bracket also includes a second inclined rod (25), which is connected between the hoisting cantilever (3) and the rotating rod (24).

10. A hoisting device, characterized in that, The condenser door cover lifting bracket includes any one of claims 1-9.

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