CN214141225U

CN214141225U - Special lifting appliance for cooler core of horizontal centrifugal compressor

Info

Publication number: CN214141225U
Application number: CN202022975142.3U
Authority: CN
Inventors: 王延明; 王斌; 段旭松; 杨龙山
Original assignee: China Academy of Aerospace Aerodynamics CAAA
Current assignee: China Academy of Aerospace Aerodynamics CAAA
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-09-07
Anticipated expiration: 2030-12-09

Abstract

A special lifting appliance for a cooler core of a horizontal centrifugal compressor is characterized in that a framework uses square steel tubes and is divided into three sections which are combined and welded into a C shape. Wherein, the welding has one section cross-section to be curved steel sheet down long cantilever upper surface for the inner wall of laminating protection cooler core guarantees that the inner wall of cooler core is intact when lifting by crane the operation, goes up on short cantilever, and the welding has the rings of conveniently connecting the lifting rope. The vertical line is made from the welding position of the hanging ring, and the center of gravity of the horizontal centrifugal compressor cooler core combined by the hanger is required to be positioned, so that the center line of the inner wall of the horizontal centrifugal compressor cooler core is kept in a horizontal state during hoisting operation. By using the special lifting appliance, in the dismounting operation of the horizontal centrifugal compressor cooler core, the auxiliary function of the crane is fully utilized, the defect of narrow operation space is overcome, the operation safety is greatly improved, the dismounting is finished by one-time lifting and high-quality dismounting, and the dismounting efficiency is correspondingly improved.

Description

Special lifting appliance for cooler core of horizontal centrifugal compressor

Technical Field

The utility model relates to a compressor cooler core's special lifting device.

Background

Due to the design of the compressor, the cooler core of the compressor is in a horizontal type, and the weight of the cooler core is 295Kg when the cooler core is installed in a shell of the compressor, so that 4 workers cannot be lifted in place smoothly.

In the installation work, need use crane handling installation, main difficult point has:

1. the outer surface of the cooler core is a heat dissipation copper pipe, the wall is thin and is easy to deform under stress, as shown in fig. 1, the binding force during hoisting cannot be borne, and when the outer surface is used for binding and hoisting, a lifting rope is interfered with a shell of a compressor when the cooler core is hoisted in place, so that the lifting rope needs to be removed when the cooler core is not installed in place, and potential safety hazards are caused;

2. two sealing gaskets are arranged at two ends of a cooler core of the compressor, so that the cooler core cannot be dislocated with a sealing plane in the installation process, otherwise, the sealing is easy to damage, and reworking and replacement are caused, so that the cooler core must be ensured to be stably and accurately installed into a shell;

3. the installation space is small due to the limitation of the shell of the compressor and the main motor, the compressor can only be operated on a platform of the compressor, at most, two persons can only be allowed to work simultaneously, and the installation of the cooler core in place cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem be: the defects of the prior art are overcome, the special lifting appliance for the horizontal centrifugal compressor cooler core is provided, the lifting appliance is matched with a crane in a plant to be used, the horizontal lifting of the compressor cooler core is realized, and meanwhile, the blocking of a compressor shell is avoided, so that the difficulty of installation work is greatly reduced, the process is stable and reliable, and the working efficiency is improved in a multiplied way.

The technical scheme of the utility model is that: a special lifting appliance for a cooler core of a horizontal centrifugal compressor comprises a lifting ring, an upper short cantilever, a vertical arm and a lower long cantilever of a semi-circular arc supporting plate; the lower long cantilever is horizontally placed, the vertical arm is vertically erected at one end of the lower long cantilever, the lower long cantilever is arranged below, the vertical arm is welded and fixed with the lower long cantilever, the semi-circular arc supporting plate is horizontally placed on the lower long cantilever, the full-length welding is fixed, one end of the upper short cantilever is placed at the upper end of the vertical arm, the upper short cantilever and the lower long cantilever are parallel and equidirectional, the lower long cantilever and the vertical arm are fixed in full-length welding, positioning is needed before welding and fixing the lifting ring, after the special lifting appliance and the cooler core of the compressor are assembled, the gravity center is on a downward gravity line of the lifting ring during lifting operation.

The lifting ring is required to be positioned before being welded and fixed, and the condition that the gravity center of the assembly is on a downward gravity line when the assembly is hoisted after the special lifting appliance is assembled with a compressor cooler core is ensured.

The upper short cantilever, the vertical arm and the lower long cantilever are square steel pipe assemblies, so that the working strength of the lifting appliance is guaranteed, and the phenomenon that deformation is too large and instability is caused in lifting operation is prevented.

After the semi-arc supporting plate and the lower long cantilever are combined, the semi-arc supporting plate and the lower long cantilever must be inserted into a central hole pipe of a cooler core of the compressor, and the central hole pipe is stressed to ensure the safety and smoothness of hoisting operation.

The size of the vertical arm between the upper short cantilever and the lower long cantilever is larger than the sum of the thickness of the inner wall of the central hole pipe of the cooler core of the compressor, the thickness of the outer wall of the cooler core of the compressor and the thickness of the shell of the corresponding compressor.

Compared with the prior art, the utility model the advantage lie in:

1. in the currently adopted dismounting process, a crane or a forklift is used, a cooler core is placed below an installation position, a sleeper below the cooler core is adjusted to adjust the height, and finally, after the special lifting appliance is pushed manually, an operator only needs to operate the crane to adjust the position due to the assistance of the crane, so that the safety is greatly improved;

2. after the special lifting appliance is used, the steps of adjusting a sleeper to adjust the height, manually pushing the sleeper and the like are omitted, so that the operation is easy and convenient, the special lifting appliance can be installed in place by one-time lifting, the interference of a compressor shell is avoided, and the position of the lifting appliance does not need to be switched for many times;

3. after the special lifting appliance is used, elevated sleepers, clips at fixed positions and the like are not needed in a general manner, so that the side cover of the compressor only needs to be opened to the maximum rather than the largest extent, and the difficulty of multi-person construction in a narrow space is overcome.

4. The original operation method often causes the sealing rubber gasket to fall off, and the sealing rubber gasket can only be taken out again to be adjusted and installed again in order to ensure that the sealing rubber gasket can be sealed in place. After the special lifting appliance is used, the crane and the lifting appliance are responsible for exerting force, and the manual work is responsible for aligning the position, so that the installation process is stable and smooth, the sealing rubber gasket is not easy to fall off, and the special lifting appliance can be accurately installed in place.

Drawings

Fig. 1 is a schematic view of the structure of a cooler core of a compressor.

Fig. 2 is the structure schematic diagram of the special lifting appliance of the utility model.

Detailed Description

The installation state of the cooler core of the compressor is horizontal, the weight of the cooler core is 295Kg, fig. 1 is a structural schematic diagram of the cooler core of the compressor, the core is installed into the compressor, and after the cooler core is installed in place, the central axis of the central hole pipe of the cooler core of the compressor is horizontally placed.

The utility model relates to a special lifting appliance for a horizontal centrifugal compressor cooler core, which comprises a lifting ring 1, an upper short cantilever 2, a vertical arm 3, a semi-circular arc support plate 4 and a lower long cantilever 5; the special lifting appliance is characterized in that a lower long cantilever 5 is horizontally placed, a vertical arm 3 is vertically erected at one end of the lower long cantilever 5, the lower long cantilever 5 is arranged below, the vertical arm 3 and the lower long cantilever 5 are welded and fixed, a semi-circular arc supporting plate 4 is horizontally placed on the lower long cantilever 5 and is fixed in a full-welding mode, one end of an upper short cantilever 2 is placed at the upper end of the vertical arm 3 and is parallel to and in the same direction as the lower long cantilever 5, the lower long cantilever 5 and the vertical arm 3 are fixed in the full-welding mode, positioning is needed before welding and fixing of a lifting ring 1, and after the special lifting appliance is assembled with a compressor cooler core, the gravity center is on a downward gravity line of the lifting ring 1 during lifting operation;

the lifting ring 1 needs to be positioned before being welded and fixed, and after the special lifting appliance is assembled with a compressor cooler core, the gravity center of the assembly is on a downward gravity line of the lifting ring 1 during lifting operation.

The upper short cantilever 2, the vertical arm 3 and the lower long cantilever 5 are square steel pipe assemblies, so that the working strength of the lifting appliance is guaranteed, and the phenomenon that deformation is too large and instability is caused in lifting operation is prevented.

After the semi-arc supporting plate 4 and the lower long cantilever 5 are combined, the semi-arc supporting plate must be inserted into a central hole pipe of a cooler core of the compressor, and the central hole pipe is stressed to ensure the safety and smoothness of hoisting operation.

The dimension of the vertical arm 3 between the upper short cantilever 2 and the lower long cantilever 5 is necessarily larger than the sum of the thickness dimension of the inner wall of the central hole pipe of the cooler core of the compressor, the thickness dimension of the outer wall of the cooler core of the compressor and the thickness dimension of the corresponding shell of the compressor.

The outer surface of the cooler core is a heat dissipation copper pipe, the outer wall is thin, the cooler core is easy to deform under stress and cannot bear the force during hoisting operation, the strength of the central hole pipe structure is high, the cooler core can serve as a stress part of the hoisting operation and can be hoisted by penetrating a lifting rope, and during installation, the lifting rope interferes with the compressor shell due to the fact that one end of the cooler core needs to be inserted into equipment, and the cooler core cannot be installed.

The specific using operation flow is as follows: the lifting rope passes through the lifting ring 1 and is hung on a lifting hook of a crane; the special lifting appliance of the utility model is lifted by operating the crane, and the lower long cantilever 5 is inserted into a central hole pipe of a cooler core of the compressor; operating a crane, hoisting a sling and a cooler core simultaneously, sequentially transmitting a hoisting acting force to an upper short cantilever 2, a vertical arm 3, a lower long cantilever 5 and a semi-circular arc supporting plate 4 through a hoisting ring 1, and finally transmitting the hoisting acting force to the compressor cooler core; the position (up, down, left and right) of the assembly is adjusted by operating the crane, and the installation position of the cooler core of the compressor is transversely inserted.

The utility model discloses a structure, be to the above-mentioned structural feature of this cooler core to and in the installation, keep central hole pipe axis to be horizontally actual requirement, and in the installation, avoid compressor housing's interference, once hoist and mount, just reach accurate taking one's place, sealed face combines closely, and is not only laborsaving, also makes the security improve greatly.

The non-detailed description of the present invention is the common general knowledge of those skilled in the art.

Claims

1. The utility model provides a special lifting device of horizontal centrifugal compressor cooler core which characterized in that: comprises a lifting ring (1), an upper short cantilever (2), a vertical arm (3), a semi-arc support plate (4) and a lower long cantilever (5); lower long cantilever (5) level is placed, erect arm (3) the one end of perpendicular to lower long cantilever (5), lower long cantilever (5) is under, erect arm (3) and lower long cantilever (5) welded fastening, semicircle backup pad (4) level is placed under on long cantilever (5), full weld is fixed, it places in erect arm (3) upper end to go up short cantilever (2) one end, and with the parallel and syntropy cantilever of lower long cantilever (5), full weld is fixed between lower long cantilever (5) and perpendicular arm (3), rings (1) need the location before the welded fastening, ensure this special lifting device and compressor cooler core equipment back, the focus is on the decurrent gravity line of rings (1) when hoist and mount operation.

2. The special lifting appliance for the cooler core of the horizontal centrifugal compressor, according to claim 1, is characterized in that: the lifting ring (1) needs to be positioned before being welded and fixed, and after the special lifting appliance is assembled with a compressor cooler core, the gravity center of the assembly is on a downward gravity line of the lifting ring (1) during lifting operation.

3. The special lifting appliance for the cooler core of the horizontal centrifugal compressor, according to claim 1, is characterized in that: go up short cantilever (2), erect arm (3), long cantilever (5) down for square steel tube subassembly, the working strength of guarantee hoist prevents to warp too big and unstability in the hoist and mount operation.

4. The special lifting appliance for the cooler core of the horizontal centrifugal compressor, according to claim 1, is characterized in that: after the semi-arc supporting plate (4) and the lower long cantilever (5) are combined, the semi-arc supporting plate must be inserted into a central hole pipe of a cooler core of the compressor, and the central hole pipe is stressed to ensure the safety and smoothness of hoisting operation.

5. The special lifting appliance for the cooler core of the horizontal centrifugal compressor, according to claim 1, is characterized in that: the size of the vertical arm (3) between the upper short cantilever (2) and the lower long cantilever (5) must be larger than the sum of the thickness of the inner wall of the central hole pipe of the cooler core of the compressor, the thickness of the outer wall of the cooler core of the compressor and the thickness of the shell of the corresponding compressor.