CN216583812U - Special lifting device for high-pressure heater of thermal power plant - Google Patents
Special lifting device for high-pressure heater of thermal power plant Download PDFInfo
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- CN216583812U CN216583812U CN202220005075.9U CN202220005075U CN216583812U CN 216583812 U CN216583812 U CN 216583812U CN 202220005075 U CN202220005075 U CN 202220005075U CN 216583812 U CN216583812 U CN 216583812U
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- anchor clamps
- pressure heater
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Abstract
The utility model relates to a large-scale power station equipment installation field especially relates to a thermal power factory high pressure feed water heater special lifting device. The technical scheme comprises the following steps: anchor clamps A and heater body still include the interim lug of temporary welding in heater body both sides, anchor clamps A includes link, two thickening steel sheets and thickening base, two centre gripping subassemblies. The utility model discloses a sling cart in anchor clamps need collocation thermal power plant uses, anchor clamps are by the link, thickening steel sheet and thickening base are constituteed, and three subassembly is once pour by specific mould and is formed, have the fastness that has more than the anchor clamps that the welding formed, and the centre gripping subassembly that sets up in two thickening steel sheets of anchor clamps, can be at the in-process of lifting by crane, pneumatic cylinder through setting up, hydraulic stem and fixed plate just can carry out effectual spacing fixed to the inside interim lug of anchor clamps, make it can not take place to rock lifting by crane the in-process, from this just reached the effect that the increase lifted by crane the security.
Description
Technical Field
The utility model relates to a large-scale power station equipment fixing field especially relates to a thermal power factory high pressure feed water heater special lifting device.
Background
The high-pressure heater is used as a heat conversion device and is mainly applied to a heat recovery system of a large thermal power generating unit, so that the high-pressure heater is commonly used in a thermal power plant, the heat transfer performance of the high-pressure heater directly affects the economy and safety of the unit, and the heater needs to be regularly checked and maintained in the thermal power plant.
High pressure feed water heater's volume is comparatively huge, so set up the sling cart in thermal power plant more and lift by crane removal work to it, and current method of lifting by crane mostly uses the rope, appurtenance such as interim lug lifts by crane it, the mode of rope has certain danger, so progressively not used, and the mode of interim lug indicates to weld a set of lug in the both sides of heater temporarily, be used for pegging graft in the anchor clamps of sling cart, from this lift by crane it, anchor clamps among the prior art are at the lift by crane in-process, the lug volume is too little can rock in anchor clamps, just so lead to whole heater to rock, thereby the potential safety hazard of lifting by crane has been increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can fix interim lug and make its high pressure feed water heater special lifting device that can not rock to the problem that exists among the background art.
The technical scheme of the utility model: a special lifting appliance for a high-pressure heater of a thermal power plant comprises a clamp A and a heater body;
the temporary lifting lugs are temporarily welded on two sides of the heater body;
the clamp A comprises a connecting frame, two thickened steel plates and a thickened base;
two centre gripping subassemblies, two the centre gripping subassembly is installed respectively in the outer wall of two thickening steel sheets and is used for being fixed interim lug, the centre gripping subassembly includes the mounting bracket, mounting bracket one side fixedly connected with pneumatic cylinder, the output fixedly connected with hydraulic stem of pneumatic cylinder, the hydraulic stem is located the piston rod one end fixedly connected with fixed plate of thickening steel sheet inner wall.
Preferably, two the trompil has all been seted up to the inside of thickening steel sheet, the welding has an installation section of thick bamboo in the trompil, the one end of an installation section of thick bamboo welds with the opposite side of mounting bracket, the hydraulic stem sets up in the inside of an installation section of thick bamboo.
Preferably, the top surface scarf joint of thickening base has a plurality of damping rod, every the equal fixedly connected with backup pad of piston rod one end of damping rod, fixedly connected with a plurality of cup joints the outside buffer spring of damping rod between the top surface of thickening base and the backup pad.
Preferably, the top of the connecting frame is fixedly connected with a lifting appliance frame through bolts.
Preferably, the one end of interim lug has the baffle through bolt threaded connection, the both sides threaded connection of interim lug has locking bolt, two the location screw that a plurality of and locking bolt threaded connection were seted up to one side of thickening steel sheet.
Preferably, one side of the fixing plate is bonded with a deformation block.
Preferably, the top surface of the supporting plate is in the shape of an arc which is sunken downwards, and the top of the supporting plate is provided with anti-skid grains.
Compared with the prior art, the utility model discloses following profitable technological effect has: anchor clamps in this device need arrange the sling cart in the thermal power plant and use, anchor clamps are by the link, thickening steel sheet and thickening base are constituteed, and three subassembly is once pour by specific mould and forms, have the fastness that has more than the anchor clamps that the welding formed, and the centre gripping subassembly that sets up in two thickening steel sheets of anchor clamps, can be at the in-process of lifting by crane, pneumatic cylinder through setting up, hydraulic stem and fixed plate just can carry out effectual spacing fixed to the inside interim lug of anchor clamps, make it can not take place to rock lifting by crane the in-process, from this just reached the effect that increases the safety of lifting by crane.
Drawings
Fig. 1 shows a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a connection structure of two clamps and a heater body;
fig. 3 is a schematic perspective view of a thickened steel plate.
Reference numerals: A. a clamp; 1. a connecting frame; 2. thickening a steel plate; 21. a mounting frame; 22. a hydraulic cylinder; 23. a hydraulic lever; 24. a fixing plate; 25. a deformation block; 26. opening a hole; 27. mounting the cylinder; 28. positioning the screw hole; 3. thickening the base; 31. a damping lever; 32. a support plate; 33. a buffer spring; 34. anti-skid lines; 4. a hanger frame; 5. a heater body; 51. temporary lifting lugs; 52. a baffle plate; 53. and locking the bolt.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1-3, the utility model provides a special lifting device for a high-pressure heater of a thermal power plant, which comprises a clamp a and a heater body 5;
the temporary lifting lugs 51 are temporarily welded on two sides of the heater body 5, one end of each temporary lifting lug 51 is connected with a baffle plate 52 through bolt threads, the diameter of each circular baffle plate 52 is larger than the inner opening of the fixture A, and the circular baffle plates are arranged at one end of each temporary lifting lug 51 and can prevent the temporary lifting lugs 51 from falling off from the interior of the fixture A during lifting work;
the fixture A comprises a connecting frame 1, two thickened steel plates 2 and a thickened base 3, the fixture A of the device is integrally cast by a specific mould in the production process, so that the production steps for producing the fixture A are reduced, the whole fixture A is firmer and more stable, the top of the connecting frame 1 is fixedly connected with a lifting tool frame 4 through bolts, and the lifting tool frame 4 can be matched with a lifting vehicle in a thermal power plant to lift the heater body 5;
two centre gripping subassemblies, two centre gripping subassemblies are installed respectively and are used for being fixed interim lug 51 in two outer walls of thickening steel sheet 2, the centre gripping subassembly includes mounting bracket 21, mounting bracket 21 one side fixedly connected with pneumatic cylinder 22, pneumatic cylinder 22's output fixedly connected with hydraulic stem 23, hydraulic stem 23 is located the piston rod one end fixedly connected with fixed plate 24 of thickening steel sheet 2 inner wall, two centre gripping subassemblies promote hydraulic stem 23 respectively through pneumatic cylinder 22 and make two fixed plates 24 carry out the centre gripping fixed to interim lug 51's both sides, from this alright prevent interim lug 51 to rock when lifting by crane, the security that has increased this device.
The working principle based on the first embodiment is as follows: before the hoisting work is started, firstly, the fixture A is connected with a sling cart in a factory building through a sling frame 4, then temporary lifting lugs 51 are respectively and temporarily welded on two sides of a heater body 5, the two fixtures A are driven to reach two sides of the heater body 5 by starting the sling cart, then the temporary lifting lugs 51 on two sides of the heater body 5 are respectively inserted into the two fixtures A, then two baffles 52 are respectively installed at one ends of the two temporary lifting lugs 51 through bolts, the temporary lifting lugs 51 cannot fall off from the fixtures A after the installation is completed, then the sling cart can be started to start hoisting, in the hoisting process, when the bottom of the heater body 5 leaves the ground, two hydraulic cylinders 22 are started to push hydraulic rods 23, so that two fixing plates 24 clamp and fix two sides of the temporary lifting lugs 51, and thus the heater body 5 can be kept in a stagnation state in the hoisting and moving process, so that it does not shake.
In this embodiment, trompil 26 has all been seted up to two inside of thickening steel sheet 2, the welding has an installation section of thick bamboo 27 in the trompil 26, the one end of an installation section of thick bamboo 27 and the opposite side welding of mounting bracket 21, hydraulic stem 23 sets up in the inside of an installation section of thick bamboo 27, the flexible space that the design of an installation section of thick bamboo 27 provided for longer hydraulic stem 23 has reduced the length of hydraulic stem 23 at 2 inner walls of thickening steel sheet, has guaranteed that the inside space of anchor clamps A can adapt to bigger interim lug 51.
In this embodiment, one side adhesive connection of fixed plate 24 has the deformation piece 25, and the deformation piece 25 can all protect interim lug 51 can not damaged by too big pressure for rubber pad (slowing down extrusion force, increase frictional force), foam-rubber cushion (increase frictional force) and so on, and the mode of adhesive connection can be modes such as glue or magic subsides, and the operator of being convenient for changes deformation piece 25.
In this embodiment, the both sides threaded connection of interim lug 51 has locking bolt 53, and a plurality of and locking bolt 53 threaded connection's location screw 28 has been seted up to one side of two thickening steel sheets 2, installs behind interim lug 51 at baffle 52 and can be connected with two thickening steel sheets 2 through locking bolt 53 again, just so can prevent to fix interim lug 51, and supplementary centre gripping subassembly is fixed heater body 5, has increased the security and the stability of this device.
Example two
As shown in fig. 1, based on the first embodiment, the utility model provides a special lifting device for high pressure heater in thermal power plant, the top surface scarf joint of thickening base 3 has a plurality of damping rod 31, the equal fixedly connected with backup pad 32 of piston rod one end of every damping rod 31, fixedly connected with a plurality of cup joints the outside buffer spring 33 at damping rod 31 between the top surface of thickening base 3 and the backup pad 32.
In this embodiment, when the hoisting machine lifts the heater body 5 off the ground, the weight of the heater body 5 is transmitted to the two fixtures a through the two temporary lifting lugs 51, and the supporting plate 32 located below the temporary lifting lugs 51 can effectively buffer the pressure by matching with the damping rods 31 and the springs, so that the fixture a is protected, and the safety of the device is improved.
In this embodiment, the top surface of the supporting plate 32 is an arc shape recessed downward, the arc shape conforms to the shape of the cylinder of the temporary lifting lug 51, the anti-slip pattern 34 is formed at the top of the supporting plate 32, the design of the anti-slip pattern 34 increases the friction force between the supporting plate 32 and the temporary lifting lug 51, and the stability of the heater body 5 during lifting is ensured.
The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations to the above embodiments based on the technical solution of the present invention and the related teachings of the above embodiments.
Claims (7)
1. A special lifting appliance for a high-pressure heater of a thermal power plant comprises a clamp (A) and a heater body (5);
the method is characterized in that: the heater also comprises temporary lifting lugs (51) welded on two sides of the heater body (5) temporarily;
the clamp (A) comprises a connecting frame (1), two thickening steel plates (2) and a thickening base (3);
two centre gripping subassemblies, two the centre gripping subassembly is installed respectively in the outer wall of two thickening steel sheet (2) and is used for fixed interim lug (51), the centre gripping subassembly includes mounting bracket (21), mounting bracket (21) one side fixedly connected with pneumatic cylinder (22), the output fixedly connected with hydraulic stem (23) of pneumatic cylinder (22), hydraulic stem (23) are located piston rod one end fixedly connected with fixed plate (24) of thickening steel sheet (2) inner wall.
2. The special lifting appliance for the high-pressure heater of the thermal power plant as claimed in claim 1, wherein openings (26) are formed in the two thickened steel plates (2), an installation cylinder (27) is welded in each opening (26), one end of each installation cylinder (27) is welded to the other side of the installation frame (21), and the hydraulic rod (23) is arranged in each installation cylinder (27).
3. The special lifting appliance for the high-pressure heater of the thermal power plant as claimed in claim 1, wherein a plurality of damping rods (31) are embedded in the top surface of the thickening base (3), a supporting plate (32) is fixedly connected to one end of a piston rod of each damping rod (31), and a plurality of buffer springs (33) sleeved outside the damping rods (31) are fixedly connected between the top surface of the thickening base (3) and the supporting plate (32).
4. The special lifting appliance for the high-pressure heater of the thermal power plant as claimed in claim 1, wherein the top of the connecting frame (1) is fixedly connected with a lifting appliance frame (4) through bolts.
5. The special lifting appliance for the high-pressure heater of the thermal power plant as claimed in claim 1, wherein one end of the temporary lifting lug (51) is connected with a baffle (52) through a bolt and a thread, two sides of the temporary lifting lug (51) are connected with locking bolts (53) through threads, and one side of each of the two thickened steel plates (2) is provided with a plurality of positioning screw holes (28) which are connected with the locking bolts (53) through threads.
6. The special lifting device for the high-pressure heater of the thermal power plant as claimed in claim 1, wherein a deformation block (25) is bonded to one side of the fixing plate (24).
7. The special lifting appliance for the high-pressure heater of the thermal power plant as claimed in claim 3, wherein the top surface of the supporting plate (32) is in a downward concave arc shape, and the top of the supporting plate (32) is provided with anti-skid lines (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220005075.9U CN216583812U (en) | 2022-01-04 | 2022-01-04 | Special lifting device for high-pressure heater of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220005075.9U CN216583812U (en) | 2022-01-04 | 2022-01-04 | Special lifting device for high-pressure heater of thermal power plant |
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| Publication Number | Publication Date |
|---|---|
| CN216583812U true CN216583812U (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220005075.9U Active CN216583812U (en) | 2022-01-04 | 2022-01-04 | Special lifting device for high-pressure heater of thermal power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116605756A (en) * | 2023-07-21 | 2023-08-18 | 中国能源建设集团山西电力建设第三有限公司 | Special lifting appliance for high-pressure heater of protective type thermal power plant |
-
2022
- 2022-01-04 CN CN202220005075.9U patent/CN216583812U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116605756A (en) * | 2023-07-21 | 2023-08-18 | 中国能源建设集团山西电力建设第三有限公司 | Special lifting appliance for high-pressure heater of protective type thermal power plant |
| CN116605756B (en) * | 2023-07-21 | 2023-10-20 | 中国能源建设集团山西电力建设第三有限公司 | Special lifting appliance for high-pressure heater of protective type thermal power plant |
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