CN110762053A - Large water pump capable of realizing integral hoisting and upward dismounting and construction method thereof - Google Patents
Large water pump capable of realizing integral hoisting and upward dismounting and construction method thereof Download PDFInfo
- Publication number
- CN110762053A CN110762053A CN201911098756.3A CN201911098756A CN110762053A CN 110762053 A CN110762053 A CN 110762053A CN 201911098756 A CN201911098756 A CN 201911098756A CN 110762053 A CN110762053 A CN 110762053A
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- Prior art keywords
- top cover
- ring plate
- water pump
- main shaft
- ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a large water pump capable of realizing integral hoisting and upward dismounting and a construction method thereof, belonging to the technical field of large water pump construction and mainly comprising the following steps: removing a main shaft sealing element matched with the main shaft, and lifting out the main shaft sealing element; the top cover supporting piece is tightly connected to the top cover upper ring plate through bolts, and a gap is reserved between the top cover supporting piece and the spindle clamping ring; sequentially disassembling the seat ring upper ring plate and the cylindrical valve support ring, and installing a lifting lug on the top cover upper ring plate; the lifting lugs are suspended by a steel wire rope and a lifting hook of the crane, and the hoisting action is carried out; until the top cover supporting piece supports the main shaft clamping ring, the connecting bolt between the main shaft and the motor shaft is disassembled; the hoisting machine continues to hoist, so that the whole water pump unit is hoisted, the overhaul period of the unit is greatly shortened, the overhaul efficiency is improved, and the safe and reliable operation of the water pump unit is also guaranteed effectively.
Description
Technical Field
The invention belongs to the technical field of large water pump construction, and particularly relates to a large water pump capable of realizing integral hoisting and upward dismounting and a construction method thereof.
Background
At present, when large-scale water pump need overhaul the runner, because the reason of unit structural design, generally need dismantle parts such as top cap, water guide bearing earlier and all hang out the pit with it after, just can hang out and overhaul the runner from the pit. According to the scheme, the parts such as the top cover of the unit, the water guide bearing and the main shaft need to be detached one by one, the construction period is long, the detaching procedure is complex, the bolt is easy to damage when being closed and detached, the reinstalling procedure is correspondingly complex, and the overhauling work of the large water pump unit is not facilitated to be rapidly and reliably carried out. Therefore, it is necessary to design a large water pump structure capable of being integrally lifted and disassembled to solve the above problems.
In order to solve the difficult problem of how to realize the start and stop (including phase modulation water pressure start, normal stop, water pump outage emergency stop and the like) of the large energy storage pump without movable guide vanes, the overall structural scheme of the large energy storage pump unit needs to be reasonably summed, and the main defects of the prior art scheme are as follows:
(1) when the unit is overhauled, all parts of the unit need to be dismantled one by one, and the construction period is long;
(2) the disassembly procedure is complex, the bolts are easy to damage when being closed and disassembled, and the reinstallation procedure is correspondingly complex, so that the overhaul work of the large-scale water pump unit is not facilitated to be rapidly and reliably carried out;
(3) great manpower, material resources and time need to be invested, special and system training needs to be carried out on the disassembling and assembling personnel, and the comprehensive cost of the pump station on the overhaul work of the water pump unit is high.
From the above analysis, it can be seen that there are certain disadvantages in other existing solutions, and it is urgent to propose new solutions to solve the above problems.
Disclosure of Invention
In view of the above, in order to solve the above problems of the prior art, the present invention is directed to a large water pump capable of being lifted and disassembled integrally and a construction method thereof.
The technical scheme adopted by the invention is as follows: a large-scale water pump capable of realizing integral hoisting and upward dismounting comprises a main shaft and a top cover, wherein a rotating wheel is arranged at the end part of the main shaft and is provided with a rotating wheel chamber, a main shaft clamping ring is arranged on the main shaft, and a top cover supporting piece is sleeved on the main shaft; the top cover comprises a top cover upper ring plate and a top cover lower ring plate, the top cover supporting piece is positioned between the spindle clamping ring and the top cover upper ring plate, and the top cover supporting piece is connected with the top cover upper ring plate through a bolt; the two ends of the cylindrical valve support ring are respectively connected with the top cover upper ring plate and the top cover lower ring plate through bolts, and the cylindrical valve support ring is provided with a cylindrical valve sleeve.
The device further comprises a seat ring upper ring plate and a seat ring lower ring plate, wherein the seat ring upper ring plate is connected with a seat ring vertical ring, and the other end of the seat ring vertical ring is connected with the cylindrical valve support ring through a bolt; a water inlet channel is formed between the seat ring upper ring plate and the seat ring lower ring plate and is communicated with the runner chamber.
Further, the cylindrical valve sleeve member includes a cylindrical valve body and a cylindrical valve power receiver for driving the cylindrical valve body to perform an up-and-down movement, the cylindrical valve power receiver is assembled on the cylindrical valve support ring, and the up-and-down movement of the cylindrical valve body seals or opens the water inlet passage.
Further, a valve body assembly hole is formed between the seat ring upper ring plate and the top cover lower ring plate, the cylindrical valve body is movably assembled in the valve body assembly hole, and sealing gaskets correspondingly matched with the cylindrical valve body are arranged on the valve body assembly hole and the seat ring lower ring plate.
Furthermore, a lifting lug is arranged on the top cover upper ring plate.
Furthermore, the top cover supporting piece comprises a plurality of supporting piece single bodies, each supporting piece single body is combined with each other to form a conical shell shape, and the end part of each supporting piece single body is connected with the top cover upper ring plate through a bolt.
Further, the spindle snap ring is integrally formed on the spindle by forging.
The invention also provides a construction method of the large water pump, which can realize integral hoisting and upward dismounting, and the construction method comprises the following steps:
(1) removing a main shaft sealing element matched with the main shaft, and lifting out the main shaft sealing element;
(2) the top cover supporting piece is tightly connected to the top cover upper ring plate through bolts, and a gap is reserved between the top cover supporting piece and the spindle clamping ring;
(3) sequentially disassembling the seat ring upper ring plate and the cylindrical valve support ring, and installing a lifting lug on the top cover upper ring plate;
(4) the lifting lugs are suspended by a steel wire rope and a lifting hook of the crane, and the hoisting action is carried out;
(5) until the top cover supporting piece supports the main shaft clamping ring, the connecting bolt between the main shaft and the motor shaft is disassembled;
(6) and the hoisting machine continues to hoist, so that the water pump unit is integrally hoisted.
Further, the gap value of the gap in the step (2) is determined according to the axial gap value between the upper crown of the runner and the lower ring plate of the top cover.
The invention has the beneficial effects that:
1. compared with other existing schemes, the construction method of the large water pump capable of achieving integral hoisting and upward dismounting does not need to dismount the top cover, the water guide bearing, the main shaft and other parts one by one, only needs to dismount the seat ring upper ring plate and the cylindrical valve support ring, and then can achieve integral hoisting of the water pump unit, and greatly shortens the construction period of dismounting during maintenance.
2. The large water pump capable of realizing integral hoisting and upward dismounting provided by the invention has simple dismounting procedure, the probability of damage when the bolt is closed and dismounted is greatly reduced due to the great reduction of the dismounting bolt part, the large water pump unit can be quickly and reliably overhauled, and the efficiency of overhauling work is greatly improved.
3. The large water pump capable of realizing integral hoisting and upward dismounting provided by the invention can reduce the manpower, material resources and time of the pump station during maintenance, and can carry out maintenance work only after the maintenance personnel are trained specifically, so that the comprehensive cost of the pump station for the maintenance work of the water pump unit is reduced.
Drawings
FIG. 1 is a schematic overall structure diagram of a large water pump capable of achieving integral hoisting and upward dismounting provided by the invention;
FIG. 2 is a partial structural schematic diagram of a closed state of a cylindrical valve in the large water pump capable of realizing integral hoisting and dismounting provided by the invention;
FIG. 3 is a partial structural schematic diagram of a cylindrical valve in an open state in a large water pump capable of realizing integral hoisting and upward dismounting, provided by the invention;
FIG. 4 is an enlarged partial schematic view at A of FIG. 2;
FIG. 5 is an enlarged partial schematic view at B in FIG. 2;
the drawings are labeled as follows:
1-runner chamber, 2-top cover, 3-base, 4-main shaft, 5-runner, 6-seat ring upper ring plate, 7-seat ring lower ring plate, 8-metal volute, 9-barrel valve power connector, 10-draft tube, 11-barrel valve body, 12-upper sealing washer, 13-lower sealing washer, 14-main shaft snap ring, 15-top cover support, 16-seat ring vertical ring, 17-motor shaft, 18-E bolt, 19-barrel valve support ring, 20-top cover upper ring plate, 21-top cover lower ring plate, 22-A bolt, 23-B bolt, 24-C bolt and 25-D bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, or the orientation or the positional relationship which is usually understood by those skilled in the art, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases by those skilled in the art; the drawings in the embodiments are used for clearly and completely describing the technical scheme in the embodiments of the invention, and obviously, the described embodiments are a part of the embodiments of the invention, but not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Example 1
As shown in fig. 1, the embodiment specifically discloses a large-scale water pump capable of realizing integral hoisting and upward dismounting, which comprises a main shaft 4, a top cover 2, a base 3 and a fixed guide vane, wherein the top cover 2 is in assembly connection with the main shaft 4, the top cover 2 is correspondingly matched with the base 3, a runner chamber 1 is formed between the base 3 and the top cover 2, a runner 5 running in the runner chamber 1 is assembled on the main shaft 4, outside water flows through the fixed guide vane and enters the runner chamber 1, the runner 5 is driven by waterpower to rotate, the main shaft 4 is in assembly connection with a motor shaft 17 through a D bolt 25, and then the motor shaft 17 is driven by the main shaft 4 to rotate to generate electricity.
A main shaft clamping ring 14 is arranged on the main shaft 4, the main shaft clamping ring 14 is integrally formed on the main shaft 4 through forging and is integrated with the main shaft 4, a top cover supporting piece 15 is sleeved on the main shaft 4, and the top cover supporting piece 15 can freely move relative to the main shaft 4; the top cover 2 comprises a top cover upper ring plate 20 and a top cover lower ring plate 21, the top cover supporting piece 15 is positioned between the spindle clamping ring 14 and the top cover upper ring plate 20, and the top cover supporting piece 15 is connected with the top cover upper ring plate 20 through an E bolt 18; still include cylindric valve support ring 19, overlap joint and closing through A bolt 22 between the upper end of this cylindric valve support ring 19 and the top cap upper ring plate 20 and being connected, overlap joint and closing through C bolt 24 between the lower extreme of cylindric valve support ring 19 and the top cap lower ring plate 21 are connected, and be equipped with the cylindric valve external member on the cylindric valve support ring 19, can realize through the cylindric valve external member that large-scale water pump opens and close according to the open-close time of regulation fast to satisfy the start-stop requirement of energy-storage pump unit.
As shown in fig. 2, the device further comprises a seat ring upper ring plate 6 and a seat ring lower ring plate 7, wherein the seat ring upper ring plate 6 is connected with a seat ring standing ring 16, the other end of the seat ring standing ring 16 is overlapped with the cylindrical valve supporting ring 19 and is connected with the cylindrical valve supporting ring 19 through a B bolt 23 in a closing manner, so that the seat ring upper ring plate 6 is assembled; the seat ring lower ring plate 7 is assembled and connected with the base 3 so as to realize the assembly of the seat ring lower ring plate 7; a water inlet channel is formed between the seat ring upper ring plate 6 and the seat ring lower ring plate 7, the water inlet channel is of an annular structure and is communicated with the runner chamber 1, and outside water flows into the runner chamber 1 through the water inlet channel and impacts the runner 5 through water flow to enable the runner 5 to rotate. In order to further improve the efficiency of external water flow entering the water inlet channel, the seat ring upper ring plate 6 and the seat ring lower ring plate 7 are both connected with a metal volute 8, and the metal volute 8 has a good drainage effect.
As shown in fig. 2, the cylindrical valve sleeve includes a cylindrical valve body 11 and a cylindrical valve power receiver 9 for driving the cylindrical valve body 11 to move up and down, the cylindrical valve power receiver 9 is mounted on the cylindrical valve support ring 19, and the up and down movement of the cylindrical valve body 11 switches the state of the water inlet passage to be blocked or opened, preferably, a plurality of cylindrical valve power receivers 9 are provided, and the cylindrical valve power receivers 9 move synchronously to drive the cylindrical valve body 11 to move up and down.
In this embodiment, through form the valve body pilot hole between 6 on the seat ring and the ring plate 21 under the top cap of ring plate, the valve body pilot hole activity is equipped with cylindric valve body 11, all be equipped with on valve body pilot hole and the ring plate 7 under the seat ring and correspond the seal ring who matches with cylindric valve body 11, concrete structure is as follows:
as shown in fig. 2, 3, 4, and 5, an annular outer edge is provided at one end of the cylindrical valve body 11, and the other end is an inclined end surface; an upper sealing washer 12 correspondingly matched with the annular outer edge is arranged on the valve body assembly hole, and a lower sealing washer 13 correspondingly matched with the inclined end face is arranged on the seat ring lower ring plate 7; when the large water pump is in an open state, the cylindrical valve body 11 rises to the highest position and the bottom end surface of the cylindrical valve body 11 is flush with the bottom end surface of the top cover lower ring plate 21, so that water flow smoothly passes through the water inlet channel; when the large-scale water pump is in a shutdown state, the cylindrical valve body 11 descends to the lowest position, the end face of the bottom end of the cylindrical valve body 11 abuts against the lower sealing washer 13 and is sealed, and meanwhile, the outer edge of the cylindrical valve body 11 abuts against the upper sealing washer 12 and is sealed, so that the runner chamber 1 is sealed to form a sealed cavity.
In order to further reduce the volume of the inflation pressurized water, the cylindrical valve body 11 is close to the high-pressure side of the rotating wheel 5, and after the communicating cavity is sealed by the cylindrical valve body 11, the formed sealing cavity is relatively smaller, so that the volume of the inflation pressurized water is relatively smaller, the time for starting the inflation pressurized water is also shorter, the specification of the compressed air equipment is also smaller, and the operation of the compressed air equipment is more stable and reliable.
As shown in fig. 1, the energy-storage water pump further comprises a draft tube 10, wherein the draft tube 10 is hermetically connected with the runner chamber 1, and when the water level drops to a proper scale position of the draft tube 10 in the process of inflating and pressing water, the energy-storage water pump can be started.
The top cover support 15 comprises a plurality of support single bodies, the support single bodies are sequentially spliced to form a conical shell shape or a tower shape, the end parts of the support single bodies are connected with the top cover upper ring plate 20 through E bolts 18, the top cover support 15 can be formed only by sequentially fastening and connecting the support single bodies to the top cover upper ring plate 20, and the top cover support 15 is used for transmitting the weight of a rotating part (namely, a rotating shaft, a rotating wheel 5, relevant accessories and the like) to the top cover 2 during hoisting operation; the size of the top cover supporting piece 15 is designed according to the calculation of the rigidity and the strength, and the size can bear the total mass of the rotating part in the large water pump.
Example 2
Based on the large water pump capable of being integrally lifted and disassembled in embodiment 1, a construction method of the large water pump capable of being integrally lifted and disassembled is further provided in this embodiment, and the construction method includes the following steps:
(1) the main shaft 4 sealing element matched with the main shaft 4 is removed through a special tool, and the main shaft 4 sealing element is lifted out or placed on the top cover 2, so that the main shaft 4 sealing element is protected from being damaged in the subsequent lifting process;
(2) the top cover support piece 15 is tightly connected to the corresponding position of the top cover upper annular plate 20 through an E bolt 18, a proper gap is reserved between the top cover support piece 15 and the spindle clamping ring 14, the gap value of the gap is determined according to the axial gap value between the upper crown of the rotating wheel 5 and the top cover lower annular plate 21, in order to ensure the normal operation of the large-scale water pump, the axial gap value between the upper crown of the rotating wheel 5 and the top cover lower annular plate 21 should have a reasonable design value, when the hoisting operation is carried out, the top cover 2 can generate displacement relative to the spindle 4, and when the top cover support piece 15 is tightly pressed on the spindle clamping ring 14, the gap value between the upper crown of the rotating wheel 5 and the top cover lower annular plate 21 should be within a reasonable design range value;
(3) the disassembly of the seat ring upper ring plate 6 is realized by disassembling the B bolt 23, the disassembly of the cylindrical valve support ring 19 is realized by disassembling the A bolt 22 and the C bolt 24, and a lifting lug is arranged on the corresponding bolt hole after the A bolt 22 is disassembled;
(4) the lifting lugs are suspended by a steel wire rope and a lifting hook of the crane, and the crane is started to carry out lifting action;
(5) the top cover 2 can vertically move upwards under the action of the crane until the top cover supporting piece 15 props against the main shaft clamping ring 14, and the D bolt 25 used for connection between the main shaft 4 and the motor shaft 17 is disassembled; at the moment, the weight of the whole rotating part is transferred to the top cover 2 through the top cover supporting piece 15, the top cover 2 is lifted by the lifting lugs, and the top cover 2 and the rotating part can be lifted synchronously;
(6) and the hoisting machine continues to perform hoisting action, so that the water pump unit is hoisted integrally, and the integral hoisting work during the installation of the water pump unit can be completed.
By adopting the construction method, the problems that each part of the water pump unit needs to be removed one by one when the water pump unit is overhauled, the construction period is long, and the disassembly and assembly procedures are complex can be well solved, the overhaul construction period of the unit is greatly shortened, the overhaul efficiency is improved, and powerful guarantee is provided for safe and reliable operation of the water pump unit.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (9)
1. A large-scale water pump capable of realizing integral hoisting and upward dismounting comprises a main shaft and a top cover, wherein a rotating wheel is arranged at the end part of the main shaft and is provided with a rotating wheel chamber; the top cover comprises a top cover upper ring plate and a top cover lower ring plate, the top cover supporting piece is positioned between the spindle clamping ring and the top cover upper ring plate, and the top cover supporting piece is connected with the top cover upper ring plate through a bolt; the two ends of the cylindrical valve support ring are respectively connected with the top cover upper ring plate and the top cover lower ring plate through bolts, and the cylindrical valve support ring is provided with a cylindrical valve sleeve.
2. The large-scale water pump capable of realizing integral hoisting and upward and downward dismounting as claimed in claim 1, further comprising a seat ring upper ring plate and a seat ring lower ring plate, wherein the seat ring upper ring plate is connected with a seat ring vertical ring, and the other end of the seat ring vertical ring is connected with the cylindrical valve support ring through a bolt; a water inlet channel is formed between the seat ring upper ring plate and the seat ring lower ring plate and is communicated with the runner chamber.
3. A large water pump capable of being lifted and disassembled integrally as claimed in claim 2, wherein said cylindrical valve housing member comprises a cylindrical valve body and a cylindrical valve power receiver for driving the cylindrical valve body to move up and down, the cylindrical valve power receiver is assembled on said cylindrical valve support ring, and the up and down movement of the cylindrical valve body seals or opens said water inlet passage.
4. The large water pump capable of realizing integral hoisting and upward dismounting as claimed in claim 3, wherein a valve body assembly hole is formed between the seat ring upper ring plate and the top cover lower ring plate, the cylindrical valve body is movably assembled in the valve body assembly hole, and sealing gaskets correspondingly matched with the cylindrical valve body are respectively arranged on the valve body assembly hole and the seat ring lower ring plate.
5. The large-scale water pump capable of realizing integral lifting and dismounting as claimed in claim 1, wherein the top cover upper ring plate is provided with a lifting lug.
6. The large water pump capable of realizing integral lifting and dismounting as claimed in claim 1, wherein the top cover supporting member comprises a plurality of supporting member single bodies, each supporting member single body is combined with each other to form a conical shell shape, and the end of each supporting member single body is connected with the top cover upper ring plate through a bolt.
7. The large water pump capable of realizing integral lifting and dismounting as claimed in claim 1, wherein the main shaft snap ring is formed on the main shaft by integral forging.
8. A construction method of a large water pump capable of realizing integral hoisting and upward dismantling is characterized in that the construction method is applied to the large water pump capable of realizing integral hoisting and upward dismantling as claimed in claim 4, and comprises the following steps:
(1) removing a main shaft sealing element matched with the main shaft, and lifting out the main shaft sealing element;
(2) the top cover supporting piece is tightly connected to the top cover upper ring plate through bolts, and a gap is reserved between the top cover supporting piece and the spindle clamping ring;
(3) sequentially disassembling the seat ring upper ring plate and the cylindrical valve support ring, and installing a lifting lug on the top cover upper ring plate;
(4) the lifting lugs are suspended by a steel wire rope and a lifting hook of the crane, and the hoisting action is carried out;
(5) until the top cover supporting piece supports the main shaft clamping ring, the connecting bolt between the main shaft and the motor shaft is disassembled;
(6) and the hoisting machine continues to hoist, so that the water pump unit is integrally hoisted.
9. The construction method of a large water pump capable of realizing integral hoisting and dismounting as claimed in claim 8, wherein the clearance value of the clearance in the step (2) is determined according to the axial clearance value between the upper crown of the runner and the lower ring plate of the top cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911098756.3A CN110762053A (en) | 2019-11-12 | 2019-11-12 | Large water pump capable of realizing integral hoisting and upward dismounting and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911098756.3A CN110762053A (en) | 2019-11-12 | 2019-11-12 | Large water pump capable of realizing integral hoisting and upward dismounting and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110762053A true CN110762053A (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911098756.3A Pending CN110762053A (en) | 2019-11-12 | 2019-11-12 | Large water pump capable of realizing integral hoisting and upward dismounting and construction method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN110762053A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113579696A (en) * | 2021-08-13 | 2021-11-02 | 重庆水轮机厂有限责任公司 | Impact type runner dismounting method |
| CN113830704A (en) * | 2021-10-11 | 2021-12-24 | 柳州酸王泵制造股份有限公司 | Pump body footing splicing equipment and using method thereof |
| CN114483660A (en) * | 2022-01-05 | 2022-05-13 | 东方电气集团东方电机有限公司 | Integral disassembling and assembling method for large vertical water pump core cladding |
-
2019
- 2019-11-12 CN CN201911098756.3A patent/CN110762053A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113579696A (en) * | 2021-08-13 | 2021-11-02 | 重庆水轮机厂有限责任公司 | Impact type runner dismounting method |
| CN113579696B (en) * | 2021-08-13 | 2023-06-02 | 重庆水轮机厂有限责任公司 | Impact type runner dismantling method |
| CN113830704A (en) * | 2021-10-11 | 2021-12-24 | 柳州酸王泵制造股份有限公司 | Pump body footing splicing equipment and using method thereof |
| CN114483660A (en) * | 2022-01-05 | 2022-05-13 | 东方电气集团东方电机有限公司 | Integral disassembling and assembling method for large vertical water pump core cladding |
| CN114483660B (en) * | 2022-01-05 | 2023-04-07 | 东方电气集团东方电机有限公司 | Integral disassembling and assembling method for large vertical water pump core cladding |
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