CN211680866U - Equipment for assembling heat exchanger barrel and tube bundle - Google Patents
Equipment for assembling heat exchanger barrel and tube bundle Download PDFInfo
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- CN211680866U CN211680866U CN202020073619.6U CN202020073619U CN211680866U CN 211680866 U CN211680866 U CN 211680866U CN 202020073619 U CN202020073619 U CN 202020073619U CN 211680866 U CN211680866 U CN 211680866U
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Abstract
The utility model provides an equipment for heat exchanger barrel and tube bank equipment, including tube bank mechanism and the barrel moving mechanism of packing into. The tube bundle loading mechanism is used for supporting the heat exchanger tube bundle, pushing the heat exchanger tube bundle into the heat exchanger barrel and assembling the heat exchanger tube bundle with the heat exchanger barrel; the barrel moving mechanism is used for supporting the heat exchanger barrel and adjusting the height of the heat exchanger barrel. The equipment has the advantages of simple structure, convenient operation, accurate installation, high installation efficiency, good installation stability, high automation degree and the like, can effectively solve the problems existing in the aspect of assembling the heat exchanger tube bundle, and overcomes the defects of complex structure, inconvenient operation, heavy weight of the whole machine, high manufacturing cost and the like in the existing assembling process.
Description
Technical Field
The utility model belongs to the technical field of the heat exchanger equipment, concretely relates to equipment that is used for heat exchanger barrel and tube bank to assemble.
Background
The capital investment of the heat exchanger accounts for about 20 percent of the total equipment investment in general chemical and petrochemical enterprises, wherein the fixed pipe type accounts for about 70 percent of the heat exchanger. The heat exchanger is heat exchange equipment widely applied in the fields of national economy and industrial production. The heat exchanger is used for heat exchange and is widely applied to the fields of metallurgy, food, light industry, chemical industry, refrigeration, heating ventilation and the like, and the annual demand is large. The heat exchanger has the advantages of high heat exchange efficiency, small self thermal resistance, low thermal inertia, sensitivity, material and space saving, power saving, small flow resistance, low noise and the like. However, the difficulty of the heat exchanger tube bundle is high when the existing method is adopted for installation, the vibration is large in the installation process, the tube bundle is easy to deform, and even the floating head is possibly damaged to cause the tube bundle leakage. Therefore, the installation operation of the heat exchanger tube bundle becomes a difficult problem which troubles manufacturers of the heat exchanger. Although the assembly process of using a simple crane to cooperate with a chain block or a core pulling machine can be very urgent, the process has the problems of poor safety and reliability, high labor intensity, low operation efficiency, tube bundle damage and the like, which cannot be effectively solved. Therefore, the traditional heat exchanger tube bundle assembling process cannot meet the production requirement.
The lagging of the prior heat exchanger tube body and tube bundle assembly technology is mainly caused by the fact that the prior heat exchanger tube body and tube bundle assembly technology cannot be operated independently and has low automation degree. Besides the need to hoist the car during operation, the transportation of the core puller also needs to be equipped with another vehicle. Not only occupies a large operation area, but also has long auxiliary time of operation. Therefore, how to integrate the functions of tube bundle extraction and installation, hoisting and transportation into a whole, and the crane and the transfer cart can be thrown away to independently operate when the tube bundle is extracted and installed is a technical difficulty in designing special equipment for assembling a novel heat exchanger tube body and the tube bundle. The main problems involved in the technical difficulties include the following aspects: how to realize the automatic loading of the tube bundle; how to ensure the stability of a longer and heavy tube bundle when being installed; in the process of assembling the tube bundle, how to ensure that all parts of the tube bundle of the heat exchanger are stressed uniformly and the deformation is in a reasonable range; the automatic movement of the heat exchanger barrel in the horizontal direction, the fine adjustment in the vertical direction and the automatic fixation.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides an equipment for heat exchanger barrel and tube bank equipment to solve the technical problem who how to protect the tube bank when the installation operation of heat exchanger tube bank.
(II) technical scheme
In order to solve the technical problem, the utility model provides a device for assembling a heat exchanger barrel and a tube bundle, which comprises a tube bundle loading mechanism and a barrel moving mechanism; the tube bundle loading mechanism is used for supporting the heat exchanger tube bundle, pushing the heat exchanger tube bundle into the heat exchanger barrel and assembling the heat exchanger tube bundle with the heat exchanger barrel; the barrel moving mechanism is used for supporting the heat exchanger barrel and adjusting the height of the heat exchanger barrel.
Further, the tube bundle loading mechanism comprises a motor, a speed reducer, a transmission chain, a hydraulic cylinder fixing support, a tube bundle conveying support, a conveying support rail and a propelling hydraulic cylinder; the conveying support rail consists of an upper part rail, a lower part rail and arc rails at two ends; the pipe bundle conveying bracket and the hydraulic cylinder fixing bracket are sequentially arranged on the conveying bracket track, and the brackets are connected through a connecting rod; the tube bundle conveying bracket is used for supporting the main body part of the heat exchanger tube bundle; the pushing hydraulic cylinder is fixed on the hydraulic cylinder fixing support and is used for pushing the tube bundle to move forwards to enter the heat exchanger barrel; the power output by the motor is applied to the chain wheel through the speed reducer, and the hydraulic cylinder fixing support and the tube bundle conveying support are driven by the transmission chain to move back and forth on the conveying support rail.
Furthermore, each tube bundle conveying bracket consists of an upper end supporting part and a lower end walking part; the upper end supporting part is designed into a V shape, so that the fixing device is suitable for fixing heat exchanger tube bundles with more sizes; the lower end traveling part fixes the upper end supporting part on the conveying support rail by using a plurality of rollers.
Further, a track baffle is arranged on the inner side of the conveying support track.
Further, the hydraulic cylinder fixing support is formed by welding steel plates; the hydraulic cylinder fixing support is provided with a pushing hydraulic cylinder fixing part.
Further, the cylinder moving mechanism comprises a cylinder main supporting frame and a cylinder auxiliary supporting frame; the main support frame of the barrel comprises an upper support frame, a lower support frame, a pulley block, a self-locking device and a barrel lifting mechanism; the V-shaped iron upper support frame is used for fixing the cylinder; the upper part of the lower support frame is connected with the bottom of the upper support frame of the V-shaped iron, and the lower part of the lower support frame is connected with the pulley block, the barrel lifting mechanism and the self-locking device; the pulley block is used for ensuring that the main support frame of the barrel body freely travels on the track; the cylinder lifting mechanism is used for driving the V-shaped iron upper support frame to move up and down; the self-locking device is used for fixing the main support frame of the cylinder body at a proper position; the barrel auxiliary stay frame is used for carrying out auxiliary stay to the barrel.
Furthermore, the self-locking device comprises a self-locking hydraulic cylinder and a swing arm, the self-locking hydraulic cylinder is connected with the swing arm, and the swing arm can freely lock and release the gear driving the main support frame of the barrel body to move through the extension and retraction of the self-locking hydraulic cylinder.
Furthermore, a baffle is arranged on the outer side of the support frame on the V-shaped iron.
Further, the barrel moving mechanism is provided with two barrel auxiliary supporting frames.
(III) advantageous effects
The utility model provides a device for assembling a heat exchanger barrel and a tube bundle, which comprises a tube bundle loading mechanism and a barrel moving mechanism; the tube bundle loading mechanism is used for supporting the heat exchanger tube bundle, pushing the heat exchanger tube bundle into the heat exchanger barrel and assembling the heat exchanger tube bundle with the heat exchanger barrel; the barrel moving mechanism is used for supporting the heat exchanger barrel and adjusting the height of the heat exchanger barrel. The equipment has the advantages of simple structure, convenient operation, accurate installation, high installation efficiency, good installation stability, high automation degree and the like, can effectively solve the problems existing in the aspect of assembling the heat exchanger tube bundle, and overcomes the defects of complex structure, inconvenient operation, heavy weight of the whole machine, high manufacturing cost and the like in the existing assembling process. Because this equipment structure is simple, except parts such as motor, bearing need purchase outward, all the other most parts can be processed by oneself, and the cost of manufacture is lower, has better economic nature and stronger practicality.
Drawings
FIG. 1 is a schematic structural view of a tube bundle loading mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view of an embodiment of a tube bundle transfer rack of the present invention;
FIG. 3 is a schematic view of an I-shaped track structure in an embodiment of the present invention;
fig. 4 is a schematic view of an arc track structure in the embodiment of the present invention;
FIG. 5 is a schematic view of a hydraulic cylinder fixing bracket according to an embodiment of the present invention;
fig. 6 is a schematic structural view of the main support frame of the cylinder in the embodiment of the present invention;
fig. 7 is a schematic view of the structure of the auxiliary supporting frame for the cylinder in the embodiment of the present invention.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following description will make a detailed description of embodiments of the present invention with reference to the accompanying drawings and examples.
The embodiment provides equipment for assembling a heat exchanger barrel and a tube bundle, which consists of a tube bundle loading mechanism and a barrel moving mechanism.
As shown in fig. 1, the tube bundle loading mechanism mainly includes a motor 2, a speed reducer 1, a transmission chain 8, a hydraulic cylinder fixing support 4, a front end conveying support 5, a tube bundle conveying support 7, a conveying support rail 10, a connecting rod 6, and a pushing hydraulic cylinder 3.
The conveying support rails 10 are made of I-shaped steel, and the upper conveying support rail 10 and the lower conveying support rail 10 are connected together through arc rails 9. A tube bundle conveying bracket 7, a front end conveying bracket 5 and a hydraulic cylinder fixing bracket 4 are sequentially arranged on the conveying bracket track 10, and the various brackets are connected through a connecting rod 6. The tube bundle conveying bracket 7 is used for supporting the main part of the heat exchanger tube bundle, and the front end conveying bracket 5 is used as a transition part between the rear side of the tube bundle conveying bracket 7 and the hydraulic cylinder fixing bracket 4. The pushing hydraulic cylinder 3 is fixed on the hydraulic cylinder fixing support 4 and used for pushing the tube bundle to move forwards to enter the cylinder body. The power output by the motor 2 is applied to the chain wheel through the speed reducer 1, and the hydraulic cylinder fixing support 4, the front end conveying support 5 and the tube bundle conveying support 7 are driven by the transmission chain 8 to move back and forth on the conveying support rail 10 together.
When the heat exchanger barrel and the tube bundle assembling equipment start to work, the heat exchanger tube bundle is firstly placed on the tube bundle conveying support 7 by a crane, meanwhile, the heat exchanger barrel is placed on the barrel moving mechanism, and then the height of the heat exchanger barrel is adjusted to be the same as that of the heat exchanger tube bundle. The motor 2 is started, the speed reducer 1 is driven by the motor 2, so that the chain wheel is driven to enable the transmission chain 8 to pull the hydraulic cylinder fixing support 4, the front end conveying support 5 and the tube bundle conveying support 7 to move forwards, the tube bundle is enabled to be gradually close to the barrel, and the tube bundle and the barrel start to be installed together. When the tube bundle is installed at the rear end of the cylinder, the tube bundle can not completely enter the cylinder under the conveying of the transmission chain 8, so the residual tube bundle is pushed into the cylinder by utilizing the pushing hydraulic cylinder 3 carried at the rear end, and then the motor 2 runs in the reverse direction to return various supports to the original position, thereby completing an installation period.
In the bundle loading mechanism, each bundle transfer rack 7 is constituted by an upper end support portion and a lower end traveling portion, and its structure is shown in fig. 2. The upper end supporting part is designed into a V shape and is formed by welding plate structures, and the structure can be suitable for fixing heat exchanger tube bundles with more sizes when being installed and can reduce the weight of special equipment. The lower end running part fixes the upper end supporting part on the conveying support rail 10 by using upper and lower 8 rollers.
In this embodiment, the quantity of bundle conveying support 7 is 10, and links to each other through connecting rod 6 between every bundle conveying support 7, can make the whole weight uniform distribution of tube bank to each bundle conveying support 7 from this on, avoid because of the deformation that the inhomogeneous leads to of tube bank atress to guarantee the reliability of installation. Because the upper and lower parts of the conveying support rail 10 are provided with the rollers, the friction between the tube bundle conveying support 7 and the rail can be reduced, and the installation efficiency is greatly improved. According to design requirements, the upper limit of the weight of the tube bundle is 15 tons, the weight is shared by 10V-shaped tube bundle conveying supports 7, shafts and bearings of rollers of the walking part of the tube bundle conveying supports 7 are main bearing parts, the shafts and the bearings meeting performance requirements are selected according to a mechanical design manual, and the strength and the rigidity of the shafts and the bearings are checked and calculated.
The conveying support rail 10 consists of an I-shaped rail, an arc-shaped rail 9 and a rail baffle. In order to meet the requirements that the tube bundle conveying support 7 can walk 180 degrees around the track and can realize the reciprocating motion of the tube bundle conveying support 7, the track is made of an I-shaped steel structure as shown in figure 3 and is designed into an upper part and a lower part which are independent, and the two I-shaped tracks are connected together through an arc-shaped track 9 (as shown in figure 4) at the front end, so that the requirements of the support structure can be met and the requirements of the reciprocating motion can be realized. In order to enhance the smoothness of the movement of the tube bundle conveying bracket 7 and the hydraulic cylinder fixing bracket 4 on the rail, rail baffles with the length of 6840mm, the width of 20mm and the height of 10mm are arranged on the inner side of the rail and are fixed on the rail through screws, so that the stability of the upper part and the lower part of the rail in the movement process and the accuracy of the equipment loading part in the installation of the tube bundles are greatly improved.
When installing the bundle, the bundle transfer stand 7 does not push the bundle completely into the drum, so another mechanism is needed to automatically push the rest of the bundle into the drum. This embodiment adopts propulsion pneumatic cylinder 3 to realize this function, and propulsion pneumatic cylinder 3 passes through pneumatic cylinder fixed bolster 4 and links to each other with front end conveying support 5 and tube bank conveying support 7 moreover. Therefore, the structure of the transfer portion of the hydraulic cylinder fixing bracket 4 is similar to that of the bundle transfer bracket 7, thereby reducing the length of the hydraulic cylinder 3. As shown in fig. 5, the hydraulic cylinder fixing bracket 4 is provided with a fixing portion for pushing the hydraulic cylinder 3. In order to reduce the acting force on the track, the hydraulic cylinder fixing bracket 4 is formed by welding and bolting No. 45 steel plates with the thickness of 20 mm. In order to simplify the design of the transmission part of the mechanism, a chain connecting mechanism is designed on the hydraulic cylinder fixing support 4 close to the motor 2, and the hydraulic cylinder fixing support 4 drives other travelling mechanisms to move. According to the selection calculation of the bearing, the model of the bearing of the upper part of the track in the hydraulic cylinder fixing bracket 4 is 6211, and the model of the bearing of the lower part is 6206.
When assembling the tube bundle, because the tube bundle conveying support 7 and the hydraulic cylinder fixing support 4 are moved, the power output by the motor 2 is applied to the chain wheel through the speed reducer 1, and the hydraulic cylinder fixing support 4, the front end conveying support 5 and the tube bundle conveying support 7 are driven by the transmission chain 8 to move. Two chain wheels are respectively designed at the arc-shaped track 9 and the bracket of the motor 2 and are fixed at two ends through bearing seats.
The barrel moving mechanism is used for adjusting the height of a heat exchanger barrel to be the same as that of a heat exchanger tube bundle and mainly comprises a barrel main support frame and a barrel auxiliary support frame.
The main support frame of the barrel mainly comprises an upper support frame, a lower support frame, a pulley block, a self-locking device and a barrel lifting mechanism, and the structure of the main support frame is shown in figure 6. The V-shaped iron upper support frame can fix the cylinder, and the intermediate opening angle can adapt to different cylinders. The lower support frame is connected with the bottom of the V-shaped iron upper support frame, can adapt to cylinders of different models, plays a role in supporting the upper support frame and the lower support frame, can fix the V-shaped iron upper support frame, enables the V-shaped iron upper support frame to move up and down along a track, and can be connected with a pulley block, a cylinder lifting mechanism and a self-locking device below the V-shaped iron upper support frame. The pulley block ensures that the main support frame of the barrel can freely walk on the track and is adaptive to the shearing stress brought by the barrel. The barrel elevating system can drive the V-shaped iron upper support frame to move up and down. The self-locking device can fix the main support frame of the cylinder body at a proper position. The self-locking device is positioned below the lower support frame, a self-locking hydraulic cylinder in the self-locking device is connected with a swing arm, and the swing arm can freely lock and release a gear driving the main support frame of the cylinder body to move through the extension and retraction of the self-locking hydraulic cylinder, so that the main support frame of the cylinder body can be fixed at a proper position.
The V-shaped iron of the V-shaped iron upper supporting frame can stably fix the cylinder, two baffle plates are respectively arranged on the outer sides of the V-shaped iron and distributed on two sides of the V-shaped iron, the opening can be connected with the two baffle plates and enables the two baffle plates to freely move up and down, and the V-shaped iron upper supporting frame aims to adapt to the rear edges of different cylinders. The middle square opening can enable the hand to go deep into the V-shaped iron to adjust the nut and bolt for connecting the baffle and the V-shaped iron. Because the size of the model that needs different barrels of adaptation, support frame on the V type iron needs to carry out automatically regulated through the promotion of barrel elevating system in order to satisfy the rising and the reduction of barrel.
The both ends of lower carriage are fixed, and the centre is equipped with the screw hole of two barrel elevating system of installation, and each part is all by the welding of different boards together in order to play the fixed effect of support.
The cylinder body auxiliary supporting frame and the cylinder body main supporting frame jointly play a role in supporting the cylinder body. In order to prevent the phenomenon that the stress of the cylinder and the support is too large due to the fact that the contact surface of the double supports is too small, the cylinder moving mechanism is provided with two cylinder auxiliary supporting frames to form a three-supporting structure, so that the stress of the cylinder in the assembling process is more reasonable, and the cylinder is prevented from being damaged. The cartridge assisted support frame is similar in construction to the bundle transfer rack 7 of the bundle loading mechanism as shown in fig. 7. The cylinder body auxiliary supporting frame is also provided with a lifting mechanism so as to ensure the horizontal lifting of the cylinder body.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (9)
1. An apparatus for assembling a heat exchanger tube bank with a tube bundle, the apparatus comprising a tube bank loading mechanism and a tube bank moving mechanism; the tube bundle loading mechanism is used for supporting the heat exchanger tube bundle, pushing the heat exchanger tube bundle into the heat exchanger barrel and assembling the heat exchanger tube bundle with the heat exchanger barrel; the barrel moving mechanism is used for supporting the heat exchanger barrel and adjusting the height of the heat exchanger barrel.
2. The apparatus of claim 1, wherein said tube bundle loading mechanism comprises a motor, a reducer, a drive chain, a hydraulic cylinder mount, a tube bundle transfer carriage, a transfer carriage track, and a pusher hydraulic cylinder; the conveying support rail consists of an upper part rail, a lower part rail and arc rails at two ends; the pipe bundle conveying bracket and the hydraulic cylinder fixing bracket are sequentially arranged on the conveying bracket track, and the brackets are connected through a connecting rod; the tube bundle conveying bracket is used for supporting the main body part of the heat exchanger tube bundle; the pushing hydraulic cylinder is fixed on the hydraulic cylinder fixing support and is used for pushing the tube bundle to move forwards to enter the heat exchanger barrel; the power output by the motor is applied to the chain wheel through the speed reducer, and the hydraulic cylinder fixing support and the tube bundle conveying support are driven by the transmission chain to move back and forth on the conveying support rail.
3. The apparatus according to claim 2, wherein each of said bundle transfer stands is comprised of an upper support section and a lower traveling section; the upper end supporting part is designed into a V shape, so that the fixing device is suitable for fixing heat exchanger tube bundles with more sizes; the lower end traveling part fixes the upper end supporting part on the conveying support rail by using a plurality of rollers.
4. The apparatus of claim 2, wherein an inner side of the transfer carriage rail is provided with a rail guard.
5. The apparatus of claim 2, wherein the hydraulic cylinder fixing bracket is welded by steel plates; the hydraulic cylinder fixing support is provided with a pushing hydraulic cylinder fixing part.
6. The apparatus of claim 1, wherein the cartridge moving mechanism comprises a cartridge main support frame and a cartridge auxiliary support frame; wherein the content of the first and second substances,
the main support frame of the barrel comprises an upper support frame of V-shaped iron, a lower support frame, a pulley block, a self-locking device and a barrel lifting mechanism; the V-shaped iron upper support frame is used for fixing the cylinder; the upper part of the lower support frame is connected with the bottom of the upper support frame of the V-shaped iron, and the lower part of the lower support frame is connected with the pulley block, the barrel lifting mechanism and the self-locking device; the pulley block is used for ensuring that the main support frame of the barrel body freely travels on the track; the cylinder lifting mechanism is used for driving the V-shaped iron upper support frame to move up and down; the self-locking device is used for fixing the main support frame of the cylinder body at a proper position;
the barrel auxiliary supporting frame is used for carrying out auxiliary supporting on the barrel.
7. The device as claimed in claim 6, wherein the self-locking device comprises a self-locking hydraulic cylinder and a swing arm, the self-locking hydraulic cylinder is connected with the swing arm, and the swing arm can freely lock and release the gear driving the main support frame of the cylinder body to move through the extension and contraction of the self-locking hydraulic cylinder.
8. The apparatus as claimed in claim 6, wherein the support frame on the V-shaped iron is provided with a baffle plate on the outer side.
9. The apparatus of claim 6, wherein the cartridge moving mechanism is provided with two cartridge auxiliary supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020073619.6U CN211680866U (en) | 2020-01-14 | 2020-01-14 | Equipment for assembling heat exchanger barrel and tube bundle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020073619.6U CN211680866U (en) | 2020-01-14 | 2020-01-14 | Equipment for assembling heat exchanger barrel and tube bundle |
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| CN211680866U true CN211680866U (en) | 2020-10-16 |
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| CN202020073619.6U Active CN211680866U (en) | 2020-01-14 | 2020-01-14 | Equipment for assembling heat exchanger barrel and tube bundle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114952221A (en) * | 2022-05-27 | 2022-08-30 | 中国化学工程第十一建设有限公司 | Heat exchanger core-pulling device and heat exchanger core-pulling method |
-
2020
- 2020-01-14 CN CN202020073619.6U patent/CN211680866U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114952221A (en) * | 2022-05-27 | 2022-08-30 | 中国化学工程第十一建设有限公司 | Heat exchanger core-pulling device and heat exchanger core-pulling method |
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