CN111139804A - Improvement method and structure of power station water inlet door machine - Google Patents
Improvement method and structure of power station water inlet door machine Download PDFInfo
- Publication number
- CN111139804A CN111139804A CN202010053484.1A CN202010053484A CN111139804A CN 111139804 A CN111139804 A CN 111139804A CN 202010053484 A CN202010053484 A CN 202010053484A CN 111139804 A CN111139804 A CN 111139804A
- Authority
- CN
- China
- Prior art keywords
- downstream
- cantilever
- upstream
- gate
- gantry crane
- 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.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 68
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 48
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 42
- 238000003860 storage Methods 0.000 claims abstract description 15
- 238000012423 maintenance Methods 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 7
- 239000010865 sewage Substances 0.000 claims description 4
- 238000007689 inspection Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/04—Free-flow canals or flumes; Intakes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Barrages (AREA)
Abstract
The invention discloses an improvement method and a structure of a power station water inlet gantry crane, which is characterized in that 1 downstream bidirectional gantry crane with a cantilever structure or upstream and downstream bidirectional gantry cranes with cantilever structures are arranged on an overhaul platform. A bidirectional moving trolley is arranged between an upstream supporting leg and a downstream supporting leg of the downstream bidirectional gantry crane with the cantilever structure, and the downstream supporting leg is provided with a cantilever fixed type hoisting mechanism and a rotary crane; the upstream landing leg of two-way door machine of cantilever structure is taken in low reaches sets up in the clear dirt harrow hopper groove upstream side, and the low reaches landing leg sets up in access door groove upstream side and storage door (bars) groove downstream side, sets up two-way travelling car operation work trash rack, reserve trash rack and stoplog gate through upper portion, and the fixed hoisting mechanism of cantilever that two-way door machine downstream side set up is used for operating the access gate, and the gyration that two-way door machine downstream side set up hangs the headstock gear installation and overhauls the maintenance that are used for quick gate. Therefore, the operation of the working trash rack, the standby trash rack, the stoplog gate and the maintenance gate of the water inlet of the power station is realized through the bidirectional door machine.
Description
Technical Field
The invention relates to an improvement method of a power station water inlet door machine, and belongs to the technical field of hydraulic and hydroelectric engineering metal structures.
Background
At present, for the water and electricity engineering of a large dam, a layered water taking measure is generally adopted to ensure that a water body with higher temperature is transferred without causing damage to the downstream ecological environment, a sewage cleaning rake bucket, a working trash rack groove, a spare trash rack groove, a stoplog gate groove, a door (grid) storage groove, an inspection gate groove and a quick gate well are generally and sequentially arranged in the water inlet flowing direction, two independent door machines are generally arranged at a traditional water inlet, one door machine is used for operating the working trash rack, the spare trash rack and the stoplog gate, the other door machine is used for operating the inspection gate and installing and overhauling opening and closing equipment for maintaining the quick gate, the water inlet flowing direction size of the power station water inlet is larger due to the arrangement of the two door machines at the water inlet, the engineering investment is more, a part of engineering adopts a door machine with a large span, but the door machine with the large span can cause the overweight door machine, and the manufacturing process is adopted, The installation and the transportation are inconvenient, so the prior art is not perfect enough and needs to be further improved.
Disclosure of Invention
The invention aims to provide an improved method and structure of a power station water inlet door machine, so as to solve the problems in the background technology.
The invention is realized by the following steps: an improvement method of a power station water inlet gantry crane is characterized in that a downstream supporting leg is adopted by the water inlet gantry crane of the power station to be provided with a cantilever fixed type hoisting mechanism and a rotary hoisting scheme or an upstream supporting leg with a cantilever type moving trolley, a gantry frame inner moving trolley, a downstream supporting leg with a cantilever fixed type hoisting mechanism and a rotary hoisting scheme, when the downstream supporting leg is adopted by the water inlet gantry crane to be provided with the cantilever fixed type hoisting mechanism and the rotary hoisting scheme, the upstream supporting leg of the water inlet gate machine is arranged on the upstream side of the sewage cleaning rake hopper groove, the downstream supporting leg is arranged on the upstream side of the access door groove and the downstream side of the storage door (gate) groove, the working trash rack, the standby trash rack and the stoplog gate are operated by the bidirectional moving trolley arranged on the upper part, the cantilever fixed type hoisting mechanism arranged on the downstream side of the bidirectional gantry crane is used for operating and overhauling gates, and the rotary crane arranged on the downstream side of the bidirectional gantry crane is used for installing, overhauling and maintaining the opening and closing equipment of the quick gate; when water inlet door machine adopted the scheme of upper reaches landing leg area cantilever type travelling car + door type frame in the movable dolly + the fixed hoisting mechanism of lower reaches landing leg area cantilever + gyration, the upper reaches landing leg sets up in stoplog gate groove upstream side and reserve trash rack groove downstream side, the lower reaches landing leg sets up in access gate groove upstream side and storage door (gate) groove downstream side, the cantilever type travelling car that two-way door machine upper reaches landing leg upstream side set up is used for the operation trash rack, reserve trash rack, movable dolly is used for operating the stoplog gate in the two-way door machine door type frame, the fixed hoisting mechanism of cantilever that two-way door machine downstream side set up is used for operating the inspection gate, the gyration that two-way door machine downstream side set up hangs the start-stop equipment installation and the maintenance that are used for quick gate.
By adopting the method, the two-way portal crane can effectively reduce the span of the portal crane while operating the working trash rack, the standby trash rack, the stoplog gate and the maintenance gate of the water inlet of the power station, thereby reducing the weight of the portal crane and saving the engineering investment.
According to the method described in the foregoing, the arrangement of the invention is such that: 1 downstream bidirectional door machine with cantilever structure or upstream and downstream bidirectional door machines with cantilever structure are arranged on the maintenance platform of the water inlet of the power station. A bidirectional moving trolley is arranged between an upstream supporting leg and a downstream supporting leg of the downstream bidirectional gantry crane with the cantilever structure, and the downstream supporting leg is provided with a cantilever fixed type hoisting mechanism and a rotary crane; the upstream landing leg of aforementioned low reaches area cantilever structure two-way door machine sets up in clear dirty harrow hopper groove upstream side, and the low reaches landing leg sets up in access door groove upstream side and storage door (bars) groove downstream side, sets up two-way travelling car operation trash rack, reserve trash rack, stoplog gate through upper portion, and the fixed hoisting mechanism of cantilever that two-way door machine downstream side set up is used for operating the access gate, and the gyration that two-way door machine downstream side set up is hung the headstock gear installation and is overhauld and maintain that are used for quick gate.
Furthermore, a door-shaped frame inner bidirectional moving trolley is arranged between an upstream supporting leg and a downstream supporting leg of the bidirectional gantry crane with the cantilever structures at the upstream and the downstream, the cantilever type moving trolley is arranged at the upstream of the upstream supporting leg, and the cantilever fixed type hoisting mechanism and the rotary crane are arranged at the downstream supporting leg.
Further, the upper reaches landing leg of the equal two-way door machine of cantilever structure of aforesaid upper and lower stream sets up in stoplog gate groove upstream side and reserve trash rack groove downstream side, the low reaches landing leg sets up in access door groove upstream side and storage door (bars) groove downstream side, the cantilever type travelling car that two-way door machine upper reaches landing leg upstream side set up is used for operating the work trash rack, reserve trash rack, portable dolly is used for operating the stoplog gate in the two-way door machine portal frame, the fixed hoisting mechanism of cantilever that two-way door machine downstream side set up is used for operating the maintenance gate, the gyration that two-way door machine downstream side set up hangs the start and stop equipment installation and the maintenance that are used for quick gate.
Furthermore, the rotary crane with the bidirectional gantry crane with the cantilever structure at the upstream and downstream is used for operating the working trash rack and hoisting the spare trash rack to the storage door (rack) groove.
Compared with the prior art, the invention has the following beneficial effects:
in the technical scheme of the invention, the water inlet gantry crane of the power station adopts a scheme that a downstream supporting leg is provided with a cantilever fixed type lifting mechanism and a rotary lifting mechanism or a scheme that an upstream supporting leg is provided with a cantilever type moving trolley, an inner moving trolley of a gantry frame and a downstream supporting leg is provided with a cantilever fixed type lifting mechanism and a rotary lifting mechanism, and the span of the gantry crane is effectively reduced while the operation of a working trash rack, a standby trash rack, a stoplog gate and an overhaul gate of the water inlet of the power station is realized through one bidirectional gantry crane, so that the weight of the gantry crane is reduced, and the engineering investment is saved.
Drawings
FIG. 1 is a schematic layout of an opening and closing apparatus according to embodiment 1 of the present invention;
FIG. 2 is a sectional view taken along line A-A in example 1 of the present invention;
FIG. 3 is a schematic structural view (front view) of a water inlet two-way door machine according to embodiment 1 of the present invention;
FIG. 4 is a schematic structural view (side view) of a bidirectional door machine for a water inlet in embodiment 1 of the present invention;
FIG. 5 is a schematic structural view (top view) of a bidirectional door machine for a water inlet in embodiment 1 of the present invention;
FIG. 6 is a schematic layout of an opening and closing apparatus according to embodiment 2 of the present invention;
FIG. 7 is a sectional view taken along line B-B in example 1 of the present invention;
fig. 8 is a schematic structural view (front view) of a water inlet bidirectional door machine according to embodiment 2 of the present invention;
fig. 9 is a schematic structural view (side view) of a water inlet bidirectional door machine according to embodiment 2 of the invention;
fig. 10 is a schematic structural view (plan view) of a water inlet bidirectional door machine according to embodiment 2 of the present invention.
The labels in the figures are: 1-maintenance platform, 2-downstream bidirectional gantry crane with cantilever structure, 3-upstream and downstream bidirectional gantry crane with cantilever structure, 4-upstream supporting leg, 5-downstream supporting leg, 6-bidirectional moving trolley, 7-cantilever fixed lifting mechanism, 8-rotary crane, 9-decontamination rake bucket groove, 10-maintenance gate groove, 11-storage gate (gate) groove, 12-working trash rack, 13-spare trash rack, 14-stoplog gate, 15-maintenance gate, 16-quick gate, 17-single cylinder vertical hydraulic machine, 18-door type frame internal bidirectional moving trolley, 19-cantilever moving trolley, 20-stoplog gate groove and 21-spare trash rack groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments, not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in figures 1-5, 1 downstream bidirectional portal crane 2 with a cantilever structure is arranged on an overhaul platform 1 of a water inlet of a power station. A bidirectional moving trolley 6 is arranged between an upstream supporting leg 4 and a downstream supporting leg 5 of the downstream bidirectional gantry crane 2 with the cantilever structure, and the downstream supporting leg 5 is provided with a cantilever fixed type hoisting mechanism 7 and a rotary crane 8.
The upstream landing leg 4 of the downstream area cantilever structure two-way door machine 2 sets up in the side of clearing away dirty harrow trough 9 upper reaches, the downstream landing leg 5 sets up in the side of 10 upper reaches of access door trough and the 11 downstream sides of storage door (bars) groove, set up the two-way travelling car 6 through upper portion and operate work trash rack 12, reserve trash rack 13, stoplog gate 14, the fixed hoisting mechanism 7 of cantilever that the downstream area cantilever structure two-way door machine 2 downstream side set up is used for operating and overhauls gate 15, the installation and the maintenance of the equipment single cylinder vertical hydraulic press 17 that opens and close that 8 is used for quick gate 16 of the downstream area cantilever structure two-way door machine 2 downstream side set up are hung in the gyration.
Example 2:
as shown in fig. 6-10, 1 bidirectional portal crane 3 with cantilever structure at both upstream and downstream is arranged on an overhaul platform 1 of a water inlet of a power station. A door-shaped frame inner bidirectional moving trolley 18 is arranged between an upstream supporting leg 4 and a downstream supporting leg 5 of a bidirectional gantry crane 3 with a cantilever structure on the upstream and the downstream, a cantilever type moving trolley 19 is arranged on the upstream of the upstream supporting leg 4, and a cantilever fixed type lifting mechanism 7 and a rotary crane 8 are arranged on the downstream supporting leg 5.
The upstream landing leg 4 of the upstream and downstream two-way portal crane 3 with cantilever structures is arranged on the upstream side of a stop log gate slot 20 and the downstream side of a spare trash rack slot 21, the downstream landing leg 5 is arranged on the upstream side of an access gate slot 10 and the downstream side of a storage gate (grid) slot 11, the cantilever type moving trolley 19 arranged on the upstream side of the upstream landing leg 4 of the upstream and downstream two-way portal crane 3 with cantilever structures is used for operating a working trash rack 12 and a spare trash rack 13, the movable trolley 18 in a gate type frame is used for operating a stop log gate 14, the cantilever fixed hoisting mechanism 7 arranged on the downstream side of the upstream and downstream two-way portal crane 3 with cantilever structures is used for operating an access gate 15, and the rotary crane 8 arranged on the downstream side of the upstream and downstream two-way portal crane 3 with cantilever structures is used for installing, overhauling and maintaining the opening and closing equipment single-cylinder vertical hydraulic.
In addition, the rotary crane 8 of the bidirectional gantry crane 3 with the cantilever structure at the upstream and downstream is used for operating the working trash rack 12 and the standby trash rack 13 to the storage door (rack) groove 11 for hoisting.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (5)
1. An improvement method of a power station water inlet door machine is characterized in that: the water inlet gantry crane of the power station adopts the scheme that a downstream landing leg (5) is provided with a cantilever fixed type lifting mechanism (7) + a rotary crane (8) or an upstream landing leg (4) is provided with a cantilever type moving trolley (19) + a gantry type frame moving trolley (18) + a downstream landing leg (5) is provided with a cantilever fixed type lifting mechanism (7) + a rotary crane (8), when the water inlet gantry crane adopts the scheme that the downstream landing leg (5) is provided with the cantilever fixed type lifting mechanism (7) + the rotary crane (8), the upstream landing leg (4) of the water inlet gantry crane is arranged on the upstream side of a sewage disposal rake hopper tank (9), the downstream landing leg (5) is arranged on the upstream side of an access gate tank (10) and the downstream side of a storage gate (gate) tank (11), a working trash rack (12), a standby trash rack (13) and a stacking gate (14) are operated through a bidirectional moving trolley (6) arranged on the upper part, the downstream side of the bidirectional gantry crane is provided with the cantilever fixed, a rotary crane (8) arranged at the downstream side of the bidirectional gantry crane is used for installing, overhauling and maintaining the opening and closing equipment of the rapid gate (16); when a water inlet gantry crane adopts a scheme that an upstream landing leg (4) is provided with a cantilever type moving trolley (19) + a gantry type frame moving trolley (18) + a downstream landing leg (5) is provided with a cantilever type fixed hoisting mechanism (7) + a rotary crane (8), the upstream landing leg (4) is arranged on the upstream side of a stop log gate slot (20) and the downstream side of a spare trash rack slot (21), a downstream landing leg (5) is arranged on the upstream side of an access gate slot (10) and the downstream side of a storage gate (grid) slot (11), the cantilever type moving trolley (19) arranged on the upstream side of the upstream landing leg (4) of a two-way gantry crane is used for operating a working trash rack (12), the spare trash rack (13), the moving trolley (18) arranged in the gantry type frame of the two-way gantry crane is used for operating the stop log gate (14), the cantilever type fixed hoisting mechanism (7) arranged on the downstream side of the two-way gantry crane is used for operating the access gate (15), the rotary crane (8) arranged on the (ii) a Therefore, the two-way gantry crane reduces the span of the gantry crane while realizing the operation of the working trash rack (12), the standby trash rack (13), the stoplog gate (14) and the maintenance gate (15) of the water inlet of the power station.
2. An improved structure of a plant water inlet door machine arranged according to the method of claim 1, characterized in that: the system comprises an overhaul platform (1) of a water inlet of a power station, wherein 1 downstream bidirectional portal crane (2) with a cantilever structure or upstream and downstream bidirectional portal cranes (3) with cantilever structures are arranged on the overhaul platform (1); the bidirectional gantry crane comprises a downstream gantry crane (2), a bidirectional travelling trolley (6) and a cantilever fixed type hoisting mechanism (7), wherein a bidirectional travelling trolley (6) is arranged between an upstream supporting leg (4) and a downstream supporting leg (5) of the downstream gantry crane, and the cantilever fixed type hoisting mechanism (7) and a rotary crane (8) are arranged on the downstream supporting leg (5); the utility model discloses a two-way gantry crane, including two-way gantry crane, downstream area cantilever structure two-way gantry crane, upstream landing leg (4) of two-way gantry crane (2) set up in clear sewage rake hopper groove (9) upper reaches side, downstream landing leg (5) set up in access door groove (10) upper reaches side and storage door (bars) groove (11) downstream side, operate work trash rack (12) through two-way travelling car (6) that upper portion set up, reserve trash rack (13), stoplog gate (14), the fixed hoisting mechanism of cantilever (7) that two-way gantry crane downstream side set up are used for operating overhaul gate (15), the gyration that two-way gantry crane downstream side set up is hung (8) and is used for the equipment fixing and the maintenance of opening and shutting.
3. The improved structure of the utility water inlet door machine as claimed in claim 2, characterized in that: a door-shaped frame inner bidirectional moving trolley (18) is arranged between an upstream supporting leg (4) and a downstream supporting leg (5) of the bidirectional gantry crane (3) with the cantilever structures on the upstream and the downstream, a cantilever type moving trolley (19) is arranged on the upstream of the upstream supporting leg (4), and a cantilever fixed type lifting mechanism (7) and a rotary crane (8) are arranged on the downstream supporting leg (5).
4. The improved structure of the utility water inlet door machine as claimed in claim 2, characterized in that: upstream landing leg (4) of two-way door machine (3) of cantilever structure of all taking of upper and lower reaches set up in stoplog gate groove (20) upstream side and reserve trash rack groove (21) downstream side, downstream landing leg (5) set up in access door groove (10) upstream side and store up gate (grid) groove (11) downstream side, cantilever type travelling car (19) that two-way door machine upstream landing leg (4) upstream side set up are used for operating work trash rack (12), reserve trash rack (13), movable dolly (18) are used for operating stoplog gate (14) in two-way door machine portal frame, the fixed hoist mechanism of cantilever (7) that two-way door machine downstream side set up is used for operating overhaul gate (15), rotary crane (8) that two-way door machine downstream side set up are used for the equipment installation and the maintenance of opening and shutting of quick gate (16).
5. The improved structure of the utility water inlet door machine as claimed in claim 2, characterized in that: and the rotary cranes (8) of the bidirectional gantry crane (3) with the cantilever structures at the upstream and the downstream are used for operating the working trash rack (12) and the standby trash rack (13) to the storage door (rack) groove (11) for hoisting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010053484.1A CN111139804A (en) | 2020-01-17 | 2020-01-17 | Improvement method and structure of power station water inlet door machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010053484.1A CN111139804A (en) | 2020-01-17 | 2020-01-17 | Improvement method and structure of power station water inlet door machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111139804A true CN111139804A (en) | 2020-05-12 |
Family
ID=70525788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010053484.1A Withdrawn CN111139804A (en) | 2020-01-17 | 2020-01-17 | Improvement method and structure of power station water inlet door machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111139804A (en) |
-
2020
- 2020-01-17 CN CN202010053484.1A patent/CN111139804A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114215020B (en) | High-efficient swift stepless layering water intaking gate device | |
| CN212405049U (en) | Improved structure of power station water inlet door machine | |
| CN110158988A (en) | A kind of building protection steel structure support and its quick method for dismounting | |
| CN212000953U (en) | Arrangement structure of high-water-level variable-amplitude water inlet opening and closing equipment | |
| CN111139804A (en) | Improvement method and structure of power station water inlet door machine | |
| CN111139805A (en) | Arrangement method and structure of power station water inlet large-span door machine | |
| CN212688899U (en) | River channel garbage intercepting device | |
| CN203255887U (en) | Movable simple gantry lifting device | |
| CN204570633U (en) | A kind of axial flow unit water inlet metal construction | |
| CN210306656U (en) | Automatic assembly combined vehicle production line for excavator | |
| CN206607568U (en) | A kind of trash | |
| CN111101492A (en) | Arrangement structure of high-water-level variable-amplitude water inlet opening and closing equipment | |
| CN210315446U (en) | Trash holding overhauling structure in pressure regulating well | |
| CN202754776U (en) | Turnover support | |
| CN212000943U (en) | Improved structure for fixing winch frame | |
| CN212000959U (en) | Arrangement structure of bulb type tubular turbine set power station | |
| CN211898215U (en) | Water retaining structure of inverted siphon outlet | |
| CN218373715U (en) | Power station water inlet opens and close computer lab structure | |
| CN111676910A (en) | Overflow meter hole working gate overhauling structure and detection method | |
| CN207419401U (en) | A kind of water conservancy and hydropower industry combined type gantry gate hoists | |
| CN219787270U (en) | Hydraulic cylinder dismounting device for water inlet accident gate | |
| CN216839314U (en) | Multifunctional integrated gantry hoist | |
| CN215107546U (en) | Electric lifting hole cover plate | |
| CN212245416U (en) | Slag bin dust collecting device of dry slag discharging system | |
| CN215290016U (en) | Small-size intake metal structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200512 |
|
| WW01 | Invention patent application withdrawn after publication |