CN219792208U - Auxiliary device for large-shaft air supplementing action test of hydroelectric generating set - Google Patents
Auxiliary device for large-shaft air supplementing action test of hydroelectric generating set Download PDFInfo
- Publication number
- CN219792208U CN219792208U CN202321084122.4U CN202321084122U CN219792208U CN 219792208 U CN219792208 U CN 219792208U CN 202321084122 U CN202321084122 U CN 202321084122U CN 219792208 U CN219792208 U CN 219792208U
- Authority
- CN
- China
- Prior art keywords
- auxiliary device
- air
- air supplementing
- cover plate
- lifting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001502 supplementing effect Effects 0.000 title claims abstract description 42
- 230000003020 moisturizing effect Effects 0.000 claims abstract 4
- 239000000725 suspension Substances 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model provides a large-shaft air supplementing operation test auxiliary device of a hydroelectric generating set, which comprises a large-shaft air supplementing pipe, an air supplementing pipe cover plate, a supporting seat and a hood middle cover plate, wherein the air supplementing pipe cover plate covers the top end of the large-shaft air supplementing pipe, the supporting seat is positioned on the outer side of the large-shaft air supplementing pipe, the hood middle cover plate is positioned above the air supplementing pipe cover plate, the top of the air supplementing pipe cover plate is provided with a lifting lug, and the supporting seat is provided with a lifting auxiliary device for lifting the air supplementing pipe cover plate and the hood middle cover plate. The power drive ejector through the hydraulic lifting cylinder jack-ups the hood middle cover plate, promotes the moisturizing pipe apron through lifting by crane the subassembly simultaneously, improves the convenience that the big axle mended the pneumatic test, and simple structure is reasonable, has practiced thrift manpower and materials greatly, leaves sufficient manpower and accomplishes the maintenance of following unit, provides powerful guarantee for the normal steady operation of unit.
Description
Technical Field
The utility model relates to the field of air supplementing tests of hydroelectric generating sets, in particular to an auxiliary device for a large-shaft air supplementing action test of a hydroelectric generating set.
Background
The well-known air supplementing device has the advantages that when the water turbine generator set has unstable working conditions, air is supplemented, the elasticity of water can be increased, and the running condition of the water turbine generator set is improved. Meanwhile, because the air supplementing breaks vacuum, the phenomenon that the tail water in the downstream is recoil to generate strong impact force or lift the machine when the load shedding water guide mechanism of the unit suddenly turns off due to negative water hammer in the tail water pipe can be prevented. The tonifying qi is divided into natural tonifying qi and forced tonifying qi. The natural air supply is generally adopted, and the forced air supply mode of compressed air is adopted only when the negative value of the suction height of the water turbine is large, the pressure in the draft tube is high, and the natural air supply mode is difficult to be adopted for air supply. The common air supplementing device comprises an axle center hole air supplementing device, a tail water cross air supplementing device and a tail water short pipe air supplementing device.
At present, a large-shaft air supplementing operation test in the conventional overhaul work of the hydraulic turbine of the hydraulic generator has to be performed, so that whether a unit runs stably or not is directly related, the air supplementing work is ensured to be performed smoothly, and the damage of flooding of a factory building and the like caused by the air supplementing work is avoided; at present, the large-shaft air-supplementing action test is mainly carried out through the hoisting of a bridge crane, a worker needs to go to a nose cover for relevant operation, a fence and a safety ladder are also required to be erected on the upper part of the nose cover, a safety belt is worn, other parts are required to be matched in the cover plate dismantling process, a large amount of manpower and material resources are consumed, the overhaul period is seriously influenced, a large amount of workload is increased, the working efficiency is reduced, and therefore the large-shaft air-supplementing action test auxiliary device for the hydroelectric generating set is provided for solving the problems.
Disclosure of Invention
The utility model mainly aims to provide a large-shaft air supplementing action test auxiliary device for a hydroelectric generating set, which solves the problems that the existing test consumes a large amount of manpower and material resources, seriously affects the overhaul period, increases a large amount of workload and reduces the working efficiency.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a hydroelectric set large axis air make-up action test auxiliary device, includes the large axis air make-up pipe, covers and establishes the support seat in the air make-up pipe apron in large axis air make-up pipe top, is located the support seat in the hood of large axis air make-up pipe outside to and be located the air make-up pipe apron top, the top of air make-up pipe apron is provided with the promotion lug, be provided with the promotion auxiliary device that is arranged in hoist and mount air make-up pipe apron and ejector hood middle cover plate on the support seat, promote auxiliary device including a plurality of annular evenly distributed's hydraulic lift jar on the support seat, set up the support column on the hydraulic lift jar output, set up the lifting means that is used for hoist and mount air make-up pipe apron between the support column, and set up the ejector spare that is used for ejector hood middle cover plate in the support column top.
In the preferred scheme, the outside of support post has set firmly the backing plate, lifts by crane the subassembly and sets up on the backing plate.
In the preferred scheme, the lifting assembly comprises suspension beams, central pieces and grapple assemblies, wherein the number of the suspension beams is the same as that of the hydraulic lifting cylinders, the central pieces are arranged at the opposite ends of the suspension beams, the grapple assemblies are arranged at the bottoms of the central pieces, and the other ends of the suspension beams are sleeved outside the supporting columns and fixedly connected with supporting plates at the bottoms of the supporting columns.
In the preferred scheme, a slot for inserting the cantilever beam is formed in the side wall surface of the central piece, and the cantilever beam is fixedly connected with the central piece through a bolt.
In the preferred scheme, the center department of center piece is provided with the centre bore, and the top of center piece is provided with the screw hole of a plurality of evenly around the centre bore, and grapple subassembly is including the jib that runs through the centre bore, set up suspension plate and U type component at both ends about the jib respectively, set up the pinhole on the relative wall of U type component to and set up the electromagnetism bolt in one of them pinhole outside, be provided with the perforation with screw hole looks adaptation on the suspension plate, threaded mounting has the dead screw that passes the fenestrate in the screw hole, and U type component is located directly over the lifting lug.
In the preferred scheme, be provided with the recess on the interior roof of U type component, embedded touch sensor in the recess.
In the preferred scheme, the exit side department of lifting lug centre bore is provided with annular proximity sensor.
In a preferred scheme, the ejector is an electromagnet.
In the preferred scheme, still including setting up the air compensating valve in the large axis air compensating pipe, be provided with the air compensating valve core on the air compensating valve, the top of air compensating valve core is provided with and connects the lug, and the bottom of air compensating pipe apron is provided with the promotion lug that is located and connects the lug top, promotes the lug and connects the movable electric block that is provided with between the lug.
The utility model provides a large-shaft air compensation operation test auxiliary device of a hydroelectric generating set, which is characterized in that an ejector is driven by the power of a hydraulic lifting cylinder to jack up a cover plate in a head cover, and meanwhile, the cover plate of an air compensation pipe is lifted by a lifting component, so that the convenience of the large-shaft air compensation operation test is improved, the structure is simple and reasonable, the manpower and material resources are greatly saved, enough manpower is reserved to complete the subsequent overhaul of the set, and the normal and stable operation of the set is effectively ensured.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a cross-sectional view of the overall structure of the present utility model;
FIG. 2 is a block diagram of a lift assist device of the present utility model;
FIG. 3 is a diagram of the center piece of the present utility model;
FIG. 4 is a block diagram of a grapple assembly of the present utility model;
FIG. 5 is a block diagram of a U-shaped member of the present utility model;
in the figure: a large-shaft air supplementing pipe 1; an air supplementing pipe cover plate 2; lifting lugs 21; an annular proximity sensor 22; an air supplementing valve core 3; a connecting lug 31; a head cover middle cover plate 4; a support base 5; a hydraulic lifting cylinder 6; a support column 7; a support plate 8; a lifting assembly 9; a cantilever beam 91; a center 92; a central bore 921; a threaded bore 922; a slot 923; a grapple assembly 10; a boom 101; a hanging plate 102; a U-shaped member 103; an electromagnetic latch 104; pin holes 105; a groove 106; a touch sensor 107; ejector 11.
Detailed Description
Example 1
As shown in fig. 1-5, an auxiliary device for a large-shaft air-supplementing action test of a hydroelectric generating set comprises a large-shaft air-supplementing pipe 1, an air-supplementing pipe cover plate 2 covered on the top end of the large-shaft air-supplementing pipe 1, a supporting seat 5 positioned on the outer side of the large-shaft air-supplementing pipe 1, and a hood middle cover plate 4 positioned above the air-supplementing pipe cover plate 2, wherein in the prior art, the air-supplementing pipe cover plate 2 is fixed on the top end of the large-shaft air-supplementing pipe 1 through a fixing bolt, and when the air-supplementing action test is carried out, the air-supplementing pipe cover plate 2 needs to be removed in advance, and the hood middle cover plate 4 is placed above the air-supplementing pipe cover plate 2.
The top welding of air make-up pipe apron 2 has the lifting lug 21, be provided with the promotion auxiliary device that is arranged in hoist and mount air make-up pipe apron 2 and ejector head cover middle cover 4 on the supporting seat 5, promote auxiliary device and include a plurality of annular evenly distributed hydraulic lift jar 6 on supporting seat 5, set firmly the support post 7 on hydraulic lift jar 6 output, set up the lifting unit 9 that is arranged in hoist and mount air make-up pipe apron 2 between support post 7 to and set up the ejector piece 11 that is arranged in ejector head cover middle cover 4 on support post 7 top.
When the device is used, the supporting column 7 is pushed to rise by the power of the hydraulic lifting cylinder 6, the cover plate 4 in the head cover is jacked, and the air supplementing pipe cover plate 2 is lifted by the lifting assembly 9, so that the air supplementing action test is completed.
In the present embodiment, the number of the hydraulic lift cylinders 6 is three.
In a preferred embodiment, the supporting plate 8 is welded to the outer portion of the supporting column 7, the lifting assembly 9 is disposed on the supporting plate 8, and the lifting assembly 9 is supported by the supporting plate 8.
In a preferred embodiment, the lifting assembly 9 includes three suspension beams 91 with the same number as the hydraulic lifting cylinders 6, a central member 92 disposed at opposite ends of the suspension beams 91, and a grapple assembly 10 disposed at the bottom of the central member 92, wherein the other end of the suspension beam 91 is sleeved outside the support column 7 and fixedly connected with a support plate 8 at the bottom thereof, and the support plate 8 is fixedly connected with the suspension beams 91 through bolts.
The side wall surface of the center piece 92 is provided with a slot 923 for the insertion of the cantilever beam 91, and the cantilever beam 91 is fixedly connected with the center piece 92 through bolts.
In a preferred embodiment, a central hole 921 is formed in the center of the central member 92, and a plurality of threaded holes 922 uniformly surrounding the central hole 921 are formed in the top of the central member 92, and in this embodiment, the number of threaded holes 922 is six.
The grapple assembly 10 comprises a hanging rod 101 penetrating through a central hole 921, hanging plates 102 and U-shaped members 103 respectively welded at the upper end and the lower end of the hanging rod 101, pin holes 105 arranged on opposite wall surfaces of the U-shaped members 103, and electromagnetic bolts 104 arranged on the outer side of one of the pin holes 105, through holes matched with the threaded holes 922 are formed in the hanging plate 102, fixing screws penetrating through the through holes are installed in the threaded holes 922 in a threaded mode, the U-shaped members 103 are located right above lifting lugs 21, and middle grooves of the U-shaped members 103 are matched with the lifting lugs 21.
In use, when lifting lug 21 is inserted into the middle slot of U-shaped member 103, electromagnetic latch 104 is activated to penetrate pin hole 105 and lifting lug 21, thereby achieving the hooking effect.
In the preferred scheme, a groove 106 is formed in the inner top wall of the U-shaped member 103, a touch sensor 107 is embedded in the groove 106, so that when the lifting lug 21 is inserted into the groove 106 and then is contacted with the touch sensor 107, inserted information is sent out, and then the electromagnetic bolt 104 is started to achieve the effect of mortise lock.
In a preferred embodiment, an annular proximity sensor 22 is disposed at the exit side of the central hole of the lifting lug 21, so that the condition of the mortise lock can be confirmed through the information sent by the annular proximity sensor 22.
In the preferred scheme, ejector piece 11 is the electro-magnet, and ejector piece 11's bottom is provided with the hole that supports post 7 male to both transversely run through fixedly through fixing bolt, be convenient for through ejector piece 11's magnetism suction hood middle cover plate 4, avoid it to appear unnecessary rocking.
Example 2
The embodiment 1 is further described, as shown in fig. 1, the air compensating valve is further arranged in the large-shaft air compensating pipe 1, the air compensating valve is provided with an air compensating valve core 3, a connecting lifting lug 31 is arranged on the top thread of the air compensating valve core 3, a lifting lug 21 positioned above the connecting lifting lug 31 is welded at the bottom of the air compensating pipe cover plate 2, an electric hoist is movably arranged between the lifting lug 21 and the connecting lifting lug 31, so that the large-shaft air compensating action test is completed by movably mounting the electric hoist between the lifting lug 21 and the connecting lifting lug 31, lifting the air compensating valve core 3 while lifting the air compensating pipe cover plate 2, quickly loosening the electric hoist after reaching a stroke height, recording the falling time of the air compensating valve core, and the large-shaft air compensating action test is conveniently carried out.
Wherein, the electric hoist is an electric hoist with the weight of 0.5 t.
Example 2
Further described in connection with example 2, the specific method is: the device is installed, then, the hydraulic lifting cylinder 6 is started to jack the ejector 11 to the lower part of the cover plate 4 in the head cover, the ejector 11 is started to magnetically suck the cover plate 4 in the head cover, then, the fixing bolt of the air supplementing cover plate 2 is removed, the lifting assembly 9 is connected with the lifting lug 21 above the air supplementing cover plate 2, then, the ejector 11 is continuously lifted, after a certain height is reached, an electric hoist is installed between the lifting lug 21 below the air supplementing cover plate 2 and the connecting lug 31 at the top of the air supplementing valve core 3, after the height reaches a stroke, the electric hoist is quickly loosened, the falling time of the air supplementing valve core is recorded, the large-shaft air supplementing action test is completed, then, the electric hoist is removed, the sealing strip is replaced, the whole fall back, the air supplementing cover plate 2 is restored, the cover plate 4 in the head cover is stably falls on the head cover, and finally, the device is removed.
The above embodiments are only preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the scope of the present utility model should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (9)
1. The utility model provides a hydroelectric set large axis air compensation action test auxiliary device, includes large axis air compensation pipe (1), lid establish air compensation pipe apron (2) on large axis air compensation pipe (1) top, be located supporting seat (5) in the outside of large axis air compensation pipe (1) to and be located apron (4) in the hood of air compensation pipe apron (2) top, characterized by: the top of moisturizing tube cover (2) is provided with promotion lug (21), be provided with the promotion auxiliary device that is arranged in hoist and mount moisturizing tube cover (2) and ejector head cover middle cover (4) on supporting seat (5), promote auxiliary device including a plurality of annular evenly distributed hydraulic lift jar (6) on supporting seat (5), support post (7) that set up on hydraulic lift jar (6) output, set up hoist assembly (9) that are used for hoist and mount moisturizing tube cover (2) between support post (7), and set up ejector (11) that are arranged in ejector head cover middle cover (4) on support post (7) top.
2. The auxiliary device for the large-shaft air supplementing action test of the hydroelectric generating set according to claim 1, which is characterized in that: the outside of support post (7) has set firmly backing plate (8), and lifting assembly (9) set up on backing plate (8).
3. The auxiliary device for the large-shaft air supplementing action test of the hydroelectric generating set according to claim 2, which is characterized in that: the lifting assembly (9) comprises suspension beams (91) the same in number as the hydraulic lifting cylinders (6), central pieces (92) arranged at the opposite ends of the suspension beams (91), and grapple assemblies (10) arranged at the bottoms of the central pieces (92), wherein the other ends of the suspension beams (91) are sleeved outside the supporting columns (7) and fixedly connected with supporting plates (8) at the bottoms of the supporting columns.
4. A hydroelectric generating set large shaft air compensating action test auxiliary device according to claim 3, characterized in that: the side wall surface of the center piece (92) is provided with a slot (923) for the insertion of the cantilever beam (91), and the cantilever beam (91) is fixedly connected with the center piece (92) through bolts.
5. The auxiliary device for the large-shaft air supplementing action test of the hydroelectric generating set according to claim 3 or 4, which is characterized in that: the center department of central piece (92) is provided with centre bore (921), the top of central piece (92) is provided with screw hole (922) of a plurality of evenly around centre bore (921), grapple subassembly (10) are including jib (101) that run through centre bore (921), hang board (102) and U type component (103) that set up both ends about jib (101) respectively, pinhole (105) that set up on U type component (103) relative wall, and electromagnetic bolt (104) that set up in one of them pinhole (105) outside, be provided with the perforation with screw hole (922) looks adaptation on hanging board (102), screw thread installation passes fenestrate fixed screw in screw hole (922), U type component (103) are located directly over lifting lug (21).
6. The auxiliary device for the large-shaft air supplementing action test of the hydroelectric generating set according to claim 5, which is characterized in that: a groove (106) is formed in the inner top wall of the U-shaped component (103), and a touch sensor (107) is embedded in the groove (106).
7. The auxiliary device for the large-shaft air supplementing action test of the hydroelectric generating set according to claim 6, wherein the auxiliary device is characterized by: an annular proximity sensor (22) is arranged at the penetrating side of the central hole of the lifting lug (21).
8. The auxiliary device for the large-shaft air supplementing action test of the hydroelectric generating set according to claim 1, which is characterized in that: the ejector (11) is an electromagnet.
9. The auxiliary device for the large-shaft air supplementing action test of the hydroelectric generating set according to claim 1, which is characterized in that: still including setting up the air compensating valve in big axle air compensating pipe (1), be provided with air compensating valve core (3) on the air compensating valve, the top of air compensating valve core (3) is provided with and connects lug (31), and the bottom of air compensating pipe apron (2) is provided with promotion lug (21) that are located connection lug (31) top, and the activity is provided with electric block between promotion lug (21) and the connection lug (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321084122.4U CN219792208U (en) | 2023-05-08 | 2023-05-08 | Auxiliary device for large-shaft air supplementing action test of hydroelectric generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321084122.4U CN219792208U (en) | 2023-05-08 | 2023-05-08 | Auxiliary device for large-shaft air supplementing action test of hydroelectric generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219792208U true CN219792208U (en) | 2023-10-03 |
Family
ID=88178646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321084122.4U Active CN219792208U (en) | 2023-05-08 | 2023-05-08 | Auxiliary device for large-shaft air supplementing action test of hydroelectric generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219792208U (en) |
-
2023
- 2023-05-08 CN CN202321084122.4U patent/CN219792208U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219792208U (en) | Auxiliary device for large-shaft air supplementing action test of hydroelectric generating set | |
| CN210766765U (en) | Hammer core of hydraulic pile hammer and lifting mechanism thereof | |
| CN211169515U (en) | Lifting device for adjusting hydraulic cylinder of universal mill | |
| CN217400979U (en) | Cylinder lifting device of steam turbine | |
| CN218201873U (en) | Pump station import overhauls floodgate main wheel dismouting maintenance device | |
| CN212553671U (en) | Special tool for installing main shaft flange connecting bolt of water turbine | |
| CN202045485U (en) | Special detaching tool for reinflation cylinder supports inside rotor center parts | |
| CN110608015A (en) | Wheel shaft type beam energy-saving pumping unit | |
| CN220030055U (en) | Lower guide shoe dismounting tool for small-space operation | |
| CN214221586U (en) | TRT quick-dismantling type bearing cylinder and axial flow compressor | |
| CN218194938U (en) | Pin pulling device | |
| CN110565638A (en) | hammer core of hydraulic pile hammer and lifting mechanism thereof | |
| CN217801505U (en) | Guide vane shaft head dismantling tool | |
| CN220358985U (en) | Special tool for dismounting magnetic poles of rotor of hydraulic generator | |
| CN211737581U (en) | Single-stage vertical centrifugal pump dismounting bracket | |
| CN215592336U (en) | Special tool for hoisting thrust pads of hydroelectric generating set | |
| CN216642583U (en) | Be applicable to centrifugal air compressor machine cooler core and demolish pressure and pull out device | |
| CN218664983U (en) | Hoisting, leveling and positioning device for prefabricated part of wind power generation tower | |
| CN220811592U (en) | Auxiliary device for quick advance and withdrawal of lifting hook movable pulley | |
| CN219219972U (en) | But quick assembly's enclose fender | |
| CN218560864U (en) | Construction structure based on BIM in super high-rise building | |
| CN220376269U (en) | Building construction elevator | |
| CN215558838U (en) | Electrical cabinet walking device | |
| CN112061949B (en) | Lifting hook switching device for 1000MW reactor coolant pump | |
| CN214692991U (en) | Movable guide vane hoisting tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |