CN113213332A - Hoisting tool and method for high-pressure main valve and inner valve cover of adjusting valve of steam turbine - Google Patents
Hoisting tool and method for high-pressure main valve and inner valve cover of adjusting valve of steam turbine Download PDFInfo
- Publication number
- CN113213332A CN113213332A CN202110588850.8A CN202110588850A CN113213332A CN 113213332 A CN113213332 A CN 113213332A CN 202110588850 A CN202110588850 A CN 202110588850A CN 113213332 A CN113213332 A CN 113213332A
- Authority
- CN
- China
- Prior art keywords
- inner valve
- valve
- valve cover
- lifting
- hoisting
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/107—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means for lifting engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/14—Slings with hooks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Turbines (AREA)
Abstract
The invention relates to a lifting tool and a method for a high-pressure main valve and an inner valve cover of an adjusting valve of a steam turbine. Compared with the prior art, the high-main and high-adjustment inner valve cover hoisting frame is combined and welded into an integral hoisting assembly, and a frame type hoisting frame and the hoisting frame are not required to be assembled any more during a hoisting process, so that frequent repeated leveling operation is avoided, the operation difficulty of hoisting a high-pressure main valve and an inner valve cover of an adjustment valve of a steam turbine can be effectively simplified, the time consumption of the hoisting process is reduced, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of steam turbine hoisting construction, in particular to a hoisting tool and a hoisting method for a high-pressure main valve and an inner valve cover of a regulating valve of a steam turbine.
Background
The high-pressure main valve is a protection device for the steam turbine to quickly cut off the steam inlet and stop the steam turbine, and is mainly controlled to quickly close and open by pressure oil, and the closing time is less than 0.8 second; the regulating valve is a valve for controlling the rotating speed and the output power of the steam turbine, and the rotating speed and the power are controlled by changing the amount of steam entering the steam turbine. The inner valve cover is used as an important part in a main valve and a regulating valve, and the inner valve cover needs to be disassembled for many times in the practical application process of the steam turbine.
In the current steam turbine structure, the structures of a high-pressure main valve and a valve inner valve cover are usually more special: the inner valve cover is inserted into the deeper position of the valve body, the gravity center is inward, and the lifting point is outward. Before the valve gap is loosed core in the disintegration, need install concatenation specialized tool and hoist many times to go to carry out accurate counter weight leveling back, just can hang out the valve gap from the valve body, for example the tradition adopts frame gallows to lift by crane, frame gallows and hoist and mount frame to assemble, hoist and mount the mode of putting up the counter weight, whole hoist and mount process is fairly complicated, and it is higher to constructor experience degree requirement, must can successfully hang out after many times of hoist and mount attempt.
When there is the disk seat defect when the high pressure valve of unit needs to carry out on-the-spot disk seat restoration, still need carry out many times trial assembly disintegration operation in order to inspect the repair effect to the internal valve gap, this can make the hoist and mount work load be the increase of several times undoubtedly, and every hoist and mount construction all can occupy a large amount of manpower resources and driving resources.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a lifting tool and a lifting method for a high-pressure main valve and an inner valve cover of a regulating valve of a steam turbine, so that the lifting operation of the high-pressure main valve and the inner valve cover of the regulating valve is effectively simplified.
The purpose of the invention can be realized by the following technical scheme: the utility model provides a steam turbine high pressure main steam valve and accent door inner valve lid lifting device, is including the first gallows that is used for connecting high accent inner valve lid and the second gallows that is used for connecting high main inner valve lid, first gallows and second gallows are fixed connection back to back each other, the free end top of first gallows and second gallows is connected with the driving hoisting point respectively.
Furthermore, the first hanging bracket and the second hanging bracket are fixedly connected through thick-wall pipes in a welding mode.
Further, the outer diameter of the thick-walled pipe is not less than 200mm and not more than 299 mm.
Furthermore, the two ends of the thick-wall pipe are fixedly connected with the first hanging bracket and the second hanging bracket respectively in a full-circle full-welding mode.
Furthermore, the tops of the free ends of the first hanging bracket and the second hanging bracket are respectively connected with a crane lifting point through a guide chain which can be extended in a telescopic way.
Furthermore, the tops of the free ends of the first hanging bracket and the second hanging bracket are respectively provided with a screw hole for mounting a lifting lug.
Furthermore, the lifting lug is connected with the guide chain, one end of the guide chain is connected with the lifting lug through the lifting hook, the other end of the guide chain is an adjusting end, and the adjusting end is connected with the crane lifting point.
Further, the first hanging bracket and the second hanging bracket are respectively connected with the high-pressure regulating inner valve cover and the high main inner valve cover through bolts.
Furthermore, a through hole for connecting and installing the height-adjustable inner valve cover is formed in the side face of the free end of the first hanging bracket.
Furthermore, a through hole for connecting and installing the high main inner valve cover is formed in the side face of the free end of the second hanging bracket.
A method for hoisting a high-pressure main valve and an inner valve cover of an adjusting valve of a steam turbine comprises the following steps:
if the high-tone inner valve cover is to be hoisted, the high-tone inner valve cover is connected with the free end of the first hanger, then the top of the free end of the first hanger is vertically connected to a crane hoisting point, the top of the free end of the second hanger is obliquely connected to the crane hoisting point, at the moment, the top of the free end of the first hanger is used as a hoisting point, the top of the free end of the second hanger is used as a leveling point, and the distance between the leveling point and the crane hoisting point is changed through adjustment, so that the leveling operation can be realized, and the hoisting of the high-tone inner valve cover is completed;
if the high main inner valve cover is to be hoisted, the high main inner valve cover is connected with the free end of the second hanger, then the top of the free end of the second hanger is vertically connected to a crane lifting point, the top of the free end of the first hanger is obliquely connected to the crane lifting point, at the moment, the top of the free end of the second hanger is used as a lifting point, the top of the free end of the first hanger is used as a leveling point, and the distance between the leveling point and the crane lifting point is changed through adjustment, so that the leveling operation can be realized, and the hoisting of the high main inner valve cover is completed.
Compared with the prior art, the invention has the following advantages:
firstly, the first hanging bracket used for connecting the high-pressure main air valve cover and the second hanging bracket used for connecting the high-main inner valve cover are fixedly connected back to back, the method is different from the mode of a traditional special frame type hanging bracket, the special frame type hanging bracket is not needed, the assembling operation of the frame type hanging bracket and the hanging bracket is not needed, the top of the free end of the first hanging bracket and the top of the free end of the second hanging bracket are respectively connected to the same travelling crane hanging point, when the high-pressure main air valve cover is hoisted or the high-main inner valve cover is hoisted, only the relation between the connection distance and the connection position among the top of the free end of the first hanging bracket, the top of the free end of the second hanging bracket and the travelling crane hanging point is needed to be adjusted, and repeated counterweight leveling work is not needed, so that the hoisting operation of the high-pressure main air valve and the high-main air valve inner valve cover is greatly simplified.
The connection between the first hanger and the second hanger is further prolonged by adopting a mode of welding the middle thick-wall pipe, the gravity center of the inner valve cover and the whole hoisting tool moves backwards during hoisting by utilizing a lever principle, and the leveling operation can be carried out only by adjusting the distance between the leveling point and a crane hoisting point, so that the difficulty of the hoisting process is further reduced, and the hoisting reliability is ensured.
Drawings
FIG. 1 is a schematic view of a first hanger connected to a second hanger;
FIG. 2 is a schematic structural diagram of hoisting a high-adjustable inner valve cover in the embodiment;
the notation in the figure is: 1. the device comprises a first hanging bracket, a second hanging bracket, a third hanging bracket, a thick-wall pipe, a fourth hanging bracket, a height adjusting inner valve cover, a fourth hanging bracket, a fifth hanging bracket, a sixth hanging bracket, a height adjusting inner valve cover, a fifth hanging bracket, a sixth hanging bracket, a 6, a lifting point, a 5, a traveling crane hanging bracket, a 6, a lifting point, 7 and a leveling point.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
As shown in fig. 1 and fig. 2, a high-pressure main valve and a valve adjusting inner valve cover hoisting tool of a steam turbine comprises a first hanger 1 for connecting a high-pressure adjusting inner valve cover 4 and a second hanger 2 for connecting the high-pressure main inner valve cover, wherein the first hanger 1 and the second hanger 2 are fixedly connected back to back, the tops of free ends of the first hanger 1 and the second hanger 2 are respectively connected with a crane hoisting point 5, wherein the first hanger 1 and the second hanger 2 are fixedly connected by welding a thick-wall pipe 3, in the embodiment, the outer diameter of the thick-wall pipe 3 is greater than or equal to 200mm and less than or equal to 299mm, and the two ends of the thick-wall pipe 3 are respectively fixedly connected with the first hanger 1 and the second hanger 2 in a full-circle welding manner.
In addition, the top of the free end of the first hanger 1 and the top of the free end of the second hanger 2 are respectively connected with the crane lifting point 5 through a guide chain which can extend and retract, specifically, the top of the free end of the first hanger 1 and the top of the free end of the second hanger 2 are respectively provided with a wire hole for installing a lifting lug, the lifting lug is connected with the guide chain, one end of the guide chain is connected with the lifting lug through a lifting hook, the other end of the guide chain is an adjusting end, and the adjusting end is connected with the crane lifting point 5.
In practical application, a through hole for connecting and installing the high-altitude inner valve cover 4 can be formed in the side surface of the free end of the first hanger 1, and a through hole for connecting and installing the high-altitude inner valve cover can be formed in the side surface of the free end of the second hanger 2, so that the first hanger 1 and the second hanger 2 can be correspondingly connected with the high-altitude inner valve cover 4 and the high-altitude inner valve cover respectively by using bolts.
The hoisting tool is applied to practice, and the specific hoisting process is as follows:
as shown in fig. 2, if the high-lift inner valve cover 4 is to be hoisted, the high-lift inner valve cover 4 is connected to the free end of the first hanger 1, then the top of the free end of the first hanger 1 is vertically connected to the crane lifting point 5, the top of the free end of the second hanger 2 is obliquely connected to the crane lifting point 5, at this time, the top of the free end of the first hanger 1 is used as a lifting point 6, the top of the free end of the second hanger 2 is used as a leveling point 7, and the distance between the leveling point 7 and the crane lifting point 5 is adjusted and changed, so that leveling operation can be realized, and the hoisting of the high-lift inner valve cover 4 is completed;
if the high main inner valve cover is hoisted, the high main inner valve cover is connected with the free end of the second hanger 2, then the top of the free end of the second hanger 2 is vertically connected to a crane lifting point 5, the top of the free end of the first hanger 1 is obliquely connected to the crane lifting point 5, at the moment, the top of the free end of the second hanger 2 is used as a lifting point 6, the top of the free end of the first hanger 1 is used as a leveling point 7, and the distance between the leveling point and the crane lifting point 5 is changed through adjustment, so that the leveling operation can be realized, and the high main inner valve cover is hoisted.
The invention takes the characteristics that a high-pressure main valve and an inner valve cover of an adjusting valve of a steam turbine have the characteristics of deep insertion position of a valve body, inward gravity center and outward lifting point, and improves a lifting tool: the high main and high adjustable two independent inner valve cover hoisting frame combined welding is an integral hoisting assembly, the assembly is positioned back to back by a high pressure main steam valve inner valve cover hoisting frame (namely a second hoisting frame) and a high pressure adjusting valve inner valve cover hoisting frame (namely a first hoisting frame), the two hoisting frames are welded and fixed by a thick-wall pipe, the hoisting assembly after improvement is used in the hoisting process, the part of a special frame type hoisting frame can be omitted, and meanwhile, the assembling process of the frame type hoisting frame and the hoisting frame is also omitted. The step of frequently hoisting and placing a special hoisting tool is not needed when the hoisting switching operation is carried out on the high main and high adjustment, and the hoisting assembly can realize the hoisting switching of the high main and high adjustment inner valve covers through turning installation; during hoisting, no counterweight leveling work is needed, and the hoisting assembly can be leveled directly through the guide chain; the hoisting assembly is used for welding and extending a high main hoisting frame and a high adjusting hoisting frame with a middle thick-walled pipe, the gravity center of the inner valve cover and the hoisting assembly is moved backwards by utilizing the lever principle, the original hoisting point is adopted for hoisting, leveling operation is carried out through the hoisting point at the extending end, and if the hoisting operation needs to be switched to the high main inner valve cover, the hoisting operation can be realized by only exchanging the hoisting point with the leveling point.
In conclusion, the technical scheme of the invention can greatly reduce the time consumption of the hoisting process, and improve the production efficiency: the frame type hanger is omitted, so that the procedures of frame type hanger hoisting and assembling of the frame type hanger and the hoisting frame can be omitted (the procedure is omitted, and the time can be saved by about 30 minutes). The operation of adjusting the inner valve cover and the counterweight of the hoisting frame at any time to keep the inner valve cover in a horizontal state is also omitted during hoisting operation (the process is omitted, so that the time can be saved by about 30 minutes), and the processes all need the whole-process matching operation of travelling crane. When the hoisting of the high main valve cover and the high adjusting inner valve cover is switched, the process of disassembling the frame type hanger and the hoisting frame, replacing the hoisting frame and then assembling again is not needed (the process is omitted, and the time can be saved by about 45 minutes).
The technical scheme of the invention can greatly reduce the difficulty of hoisting operation: because all hoisting pieces are large pieces, the original process needs to carry out the installation and splicing of the hoisting device and the accurate counterweight leveling, and the hoisting device can be successfully hoisted out after a plurality of hoisting attempts, and the hoisting process has high difficulty and higher requirements on experience of constructors. The improved hoisting assembly does not need to be assembled and does not need to be balanced, and the leveling can be directly carried out through the leveling guide chain, so that the operation is simple and convenient, the effect is intuitive, and the requirement on the experience degree of constructors is low.
In the technical scheme of the invention, the original 3 lifting appliances special for the inner valve covers of the high main and high adjusting valves are simplified into 1 lifting appliance, thereby bringing great convenience to the transportation and storage of special tools.
Claims (10)
1. The utility model provides a steam turbine high pressure main throttle valve and accent door inner valve lid lifting device which characterized in that, is including first gallows (1) that is used for connecting high accent inner valve lid (4) and second gallows (2) that are used for connecting high main inner valve lid, first gallows (1) and second gallows (2) are back to back fixed connection each other, the free end top of first gallows (1) and second gallows (2) is connected with driving hoisting point (5) respectively.
2. The lifting tool for the main high-pressure valve and the inner valve cover of the governing valve of the steam turbine according to claim 1, wherein the first hanger (1) and the second hanger (2) are fixedly connected by welding through a thick-wall pipe (3).
3. The lifting tool for the main high-pressure valve and the inner valve cover of the governing valve of the steam turbine according to claim 2, wherein the outer diameter of the thick-wall pipe (3) is greater than or equal to 200mm and less than or equal to 299 mm.
4. The lifting tool for the high-pressure main throttle valve and the inner valve cover of the governing valve of the steam turbine as claimed in claim 2, wherein two ends of the thick-walled pipe (3) are fixedly connected with the first lifting frame (1) and the second lifting frame (2) respectively in a full-circle full-welding mode.
5. The lifting tool for the main high-pressure main valve and the inner valve cover of the adjusting valve of the steam turbine as claimed in claim 1, characterized in that the top parts of the free ends of the first hanger (1) and the second hanger (2) are respectively connected with the crane lifting point (5) through a guide chain which can be extended telescopically.
6. The lifting tool for the high-pressure main throttle valve and the inner valve cover of the regulating valve of the steam turbine according to claim 5, wherein the top parts of the free ends of the first lifting frame (1) and the second lifting frame (2) are respectively provided with a threaded hole for mounting a lifting lug.
7. The lifting tool for the main high-pressure valve and the inner valve cover of the adjusting valve of the steam turbine according to claim 6, wherein the lifting lug is connected with a guide chain, one end of the guide chain is connected with the lifting lug through a lifting hook, the other end of the guide chain is an adjusting end, and the adjusting end is connected with a crane lifting point (5).
8. The lifting tool for the high-pressure main valve and the inner valve cover of the adjusting valve of the steam turbine according to claim 1, wherein the first lifting frame (1) and the second lifting frame (2) are respectively connected with the inner valve cover (4) of the high adjusting valve and the inner valve cover of the high main valve through bolts.
9. The lifting tool for the high-pressure main throttle valve and the inner valve cover of the regulating valve of the steam turbine according to claim 8, wherein the side surfaces of the free ends of the first lifting frame (1) and the second lifting frame (2) are respectively provided with through holes for connecting and installing the high-pressure regulating inner valve cover (4) and the high-pressure main inner valve cover.
10. The hoisting method of the hoisting tool for the high-pressure main valve and the inner valve cover of the regulating valve of the steam turbine according to claim 1 is characterized by comprising the following steps of:
if the high-adjustment inner valve cover (4) is hoisted, the high-adjustment inner valve cover (4) is connected with the free end of a first hanger (1), then the top of the free end of the first hanger (1) is vertically connected to a crane hoisting point (5), the top of the free end of a second hanger (2) is obliquely connected to the crane hoisting point (5), at the moment, the top of the free end of the first hanger (1) is used as a hoisting point (6), the top of the free end of the second hanger (2) is used as a leveling point (7), and the leveling operation can be realized by adjusting and changing the distance between the leveling point (7) and the crane hoisting point (5), so that the high-adjustment inner valve cover (4) is hoisted;
if the high main inner valve cover is hoisted, the high main inner valve cover is connected with the free end of the second hanging frame (2), then the top of the free end of the second hanging frame (2) is vertically connected to a crane hoisting point (5), the top of the free end of the first hanging frame (1) is obliquely connected to the crane hoisting point (5), at the moment, the top of the free end of the second hanging frame (2) is used as a hoisting point (6), the top of the free end of the first hanging frame (1) is used as a leveling point (7), and the distance between the leveling point (7) and the crane hoisting point (5) is changed through adjustment, so that the leveling operation can be realized, and the hoisting of the high main inner valve cover is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588850.8A CN113213332A (en) | 2021-05-28 | 2021-05-28 | Hoisting tool and method for high-pressure main valve and inner valve cover of adjusting valve of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588850.8A CN113213332A (en) | 2021-05-28 | 2021-05-28 | Hoisting tool and method for high-pressure main valve and inner valve cover of adjusting valve of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113213332A true CN113213332A (en) | 2021-08-06 |
Family
ID=77099037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110588850.8A Pending CN113213332A (en) | 2021-05-28 | 2021-05-28 | Hoisting tool and method for high-pressure main valve and inner valve cover of adjusting valve of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113213332A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714969A (en) * | 2021-09-27 | 2021-11-30 | 华能（上海）电力检修有限责任公司 | Tool for dismounting TLT movable blade adjustable axial flow fan impeller petiole nut |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09290991A (en) * | 1996-04-26 | 1997-11-11 | Asanumagumi:Kk | Weight suspending device |
| KR20060035704A (en) * | 2006-04-06 | 2006-04-26 | 이명근 | The length adjustable wire sling |
| CN204675602U (en) * | 2015-02-10 | 2015-09-30 | 中冶南方工程技术有限公司 | A kind of novel squeeze roll changing rig |
| US20170107085A1 (en) * | 2014-03-26 | 2017-04-20 | Areva Wind Gmbh | Tool for handling a long and heavy object |
| CN108862000A (en) * | 2017-02-10 | 2018-11-23 | 平高集团有限公司 | A kind of potting breaker arc-chutes hoisting fixture |
| CN217838111U (en) * | 2021-05-28 | 2022-11-18 | 华能（上海）电力检修有限责任公司 | Steam turbine high pressure main valve and adjusting valve inner valve cover lifting device |
-
2021
- 2021-05-28 CN CN202110588850.8A patent/CN113213332A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09290991A (en) * | 1996-04-26 | 1997-11-11 | Asanumagumi:Kk | Weight suspending device |
| KR20060035704A (en) * | 2006-04-06 | 2006-04-26 | 이명근 | The length adjustable wire sling |
| US20170107085A1 (en) * | 2014-03-26 | 2017-04-20 | Areva Wind Gmbh | Tool for handling a long and heavy object |
| CN204675602U (en) * | 2015-02-10 | 2015-09-30 | 中冶南方工程技术有限公司 | A kind of novel squeeze roll changing rig |
| CN108862000A (en) * | 2017-02-10 | 2018-11-23 | 平高集团有限公司 | A kind of potting breaker arc-chutes hoisting fixture |
| CN217838111U (en) * | 2021-05-28 | 2022-11-18 | 华能（上海）电力检修有限责任公司 | Steam turbine high pressure main valve and adjusting valve inner valve cover lifting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714969A (en) * | 2021-09-27 | 2021-11-30 | 华能（上海）电力检修有限责任公司 | Tool for dismounting TLT movable blade adjustable axial flow fan impeller petiole nut |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204028324U (en) | Wheel chair motor loading performance proving installation | |
| CN101666413B (en) | Mechanical pipeline under-pressure blocker and blocking method thereof | |
| CN113213332A (en) | Hoisting tool and method for high-pressure main valve and inner valve cover of adjusting valve of steam turbine | |
| CN217838111U (en) | Steam turbine high pressure main valve and adjusting valve inner valve cover lifting device | |
| CN107302290B (en) | Locomotive diesel generating set vibration isolator adjusts device and method | |
| CN204199338U (en) | Movable arm cylinder of excavator bearing pin fixed mechanism | |
| CN201565917U (en) | Device for installing piston ring | |
| CN102829969B (en) | Valve pressure tester | |
| CN209522507U (en) | A kind of counter weight device, crane and counterweight vehicle | |
| CN209815490U (en) | Hoisting device for rotor magnetic pole in hydraulic generator pit | |
| CN210286461U (en) | Upper end cover bearing bush hoisting mechanism of end cover type steam turbine generator capable of being conveniently finely adjusted | |
| CN207452897U (en) | The mounting structure and its hydraulic control system of anti-stake machine column deformation | |
| CN206263554U (en) | Butterfly valve seal circle auxiliary assembling apparatus | |
| CN102423847B (en) | Method for assembling axial-flow movable-blade type hydraulic turbine and support device adopted by axial-flow movable-blade hydraulic turbine | |
| CN201240757Y (en) | Flexible hanger bracket for hoisting machinery | |
| CN216336131U (en) | Marine diesel cylinder liner hoist device | |
| CN220870454U (en) | Baffle with regulatory function | |
| CN211565656U (en) | Box plug-in connection rod assembly tool | |
| CN215804920U (en) | Piston rod pulling tool for assembling rotating wheel of axial-flow type plug structure | |
| CN201003383Y (en) | Hydraulic lifting device for oil well operation under pressure | |
| CN216381331U (en) | Motor auxiliary device for oil pumping unit | |
| CN202607183U (en) | Novel special tool for valve lifting of diaphragm pump | |
| CN213898899U (en) | Oil pipe clamp assembly | |
| CN210071312U (en) | Push rod motor life test device | |
| CN220660523U (en) | Frock is used in processing of engine end cover |
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 |