CN114922811A - Submersible electric pump and mounting method thereof - Google Patents
Submersible electric pump and mounting method thereof Download PDFInfo
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- CN114922811A CN114922811A CN202111449859.7A CN202111449859A CN114922811A CN 114922811 A CN114922811 A CN 114922811A CN 202111449859 A CN202111449859 A CN 202111449859A CN 114922811 A CN114922811 A CN 114922811A
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- sleeve
- pipe
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001816 cooling Methods 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 18
- 238000005086 pumping Methods 0.000 claims description 17
- 238000012360 testing method Methods 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 238000011900 installation process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/22—Arrangements for enabling ready assembly or disassembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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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 relates to a submersible electric pump and a method for mounting the submersible electric pump, the submersible electric pump comprises: the multi-stage lifting pipe component and the multi-stage lifting sleeve are connected in series from top to bottom; all the pulling pipe parts are installed in the sleeve, the lowest stage of the pulling pipe parts is connected with the electric pump part, and the uppermost stage of the pulling pipe parts is connected with the top cover part fixed to the ground. When the submersible pump is installed and lowered, the lifting pipe is installed step by step, when the submersible pump is disassembled and pumped out, the lifting pipe is lifted step by step and disassembled, and the submersible pump can be assembled and disassembled in a small space. The mounting process utilizes special tools to ensure that the whole mounting process of the submersible electric pump can be carried out simply, safely and efficiently.
Description
Technical Field
The invention relates to a pump and an installation method, in particular to a submersible electric pump and an installation method of the submersible electric pump, wherein the tool is installed in a modularized mode, the installation and the disassembly are convenient, the overhaul space is small, and the whole installation process of the submersible electric pump is simple, safe and efficient.
Background
When liquid is pumped and conveyed in low liquid level environments such as deep pits, wells or tank containers, the electric pump is submerged by adopting a modularized conductive cooling supporting structure.
The submerged electric pump with the modular conductive cooling supporting structure is a submerged electric pump with adjustable rod length (submergence depth), insulation resistance measurement, oil injection and air pressure test are carried out on lifting pipe parts section by section in the installation process, and the submerged electric pump is complex in installation, maintenance and disassembly and low in efficiency and has certain danger when being installed by adopting a common process.
Disclosure of Invention
In view of the above problems, the present invention provides a submersible electric pump and a method for installing the submersible electric pump, which are modularized, convenient to install and disassemble, small in maintenance space, simple, safe and efficient in the whole installation process of the submersible electric pump.
The invention solves the technical problems through the following technical scheme: a submersible electric pump, comprising: the multi-stage lifting pipe component and the multi-stage lifting sleeve are connected in series from top to bottom; all the pulling pipe parts are installed in the sleeve, the lowest stage of the pulling pipe parts is connected with the electric pump part, and the uppermost stage of the pulling pipe parts is connected with the top cover part fixed to the ground.
In an embodiment of the present invention, a first flange connection surface is arranged at the lowest part of the top cover part, and a first insertion hole in a plug-in type is made of a first hollow conductive pipe.
In an embodiment of the invention, the two ends of the pull pipe component are respectively provided with a second flange connecting surface and a third flange connecting surface, and a first plug and a second jack which are made of a second hollow conductive pipe and are in a plug-in mode.
In an embodiment of the present invention, the electric pump component is provided with a fourth flange connecting surface at the uppermost part, and a second plug in a plug-in form made of a third hollow conductive tube.
In the specific implementation example of the invention, the top cover part and the lifting pipe part at the uppermost stage are connected by the first hollow conductive pipe and the second hollow conductive pipe in a manner that the first jack is plugged with the first plug, and are matched with the first flange connecting surface and the second flange connecting surface to be connected with the support; and the second hollow conductive pipe is connected with the third hollow conductive pipe by adopting a mode that a second jack is plugged with a second plug between the lifting pipe part at the lowest stage and the electric pump part, and meanwhile, the third flange connecting surface is matched with the fourth flange connecting surface to be connected with the support.
In a practical embodiment of the invention, the sleeve is provided with two layers of supports, a first support fixing the sleeve to the building and a second support for suspending and fixing the pump unit.
A method for installing a submersible electric pump comprises the following steps: the installation method comprises the following steps:
the first step is as follows: installing a sleeve;
the second step: installing an electric pump component;
the third step: installing a pulling pipe component;
the fourth step: and installing the top cover component.
In a specific embodiment of the present invention, the step of mounting the electric pump assembly comprises the steps of:
when the electric pump component is installed, a lifting pipe component is preassembled, the scribed line positions of the lifting pipe component and the electric pump component are aligned, 4 centering lifting pipe supporting pieces are installed at the lower flange of the lifting pipe component, and the fastening pieces are required to be uniformly distributed and screwed; the pull-up tube component is labeled # 1;
according to the condition that the lower end of the electric pump part is 0.8-1.5 m higher than the flange surface of the sleeve, slowly moving the electric pump part to the central position of the sleeve, then slowly putting the electric pump part down on a special lifting pipe supporting device, and dismantling the lifting device;
the electric pump part is injected with cooling oil in advance; firstly, measuring the insulation resistance of a pull-up pipe component, injecting cooling oil after meeting the requirements, installing an oil pumping and pressurizing tool for an air pressure test, removing the oil pumping and pressurizing tool after all the parts are normal, carrying out the next step of installation, and recording data.
In an embodiment of the present invention, the step of installing the pull-up tube member comprises the steps of:
according to the fact that the lower end of the lifting pipe component is 0.8-1.2 meters higher than the flange face of the sleeve, the lifting pipe component is slowly moved to the center position of the sleeve and then slowly lowered, when the distance between the three conductive pipes is 3-6cm, the approximate positions of the scribed lines of the lifting pipe component at the upper end and the lower end need to be aligned, the three conductive pipes are consistent in the upper position and the lower position, then the lifting pipe component needs to be centered by hands, the crane slowly lowers, when the lifting pipe component is placed at the flange rabbets and is matched with each other, the upper flange position can be properly rotated, the upper scribed lines and the lower scribed lines are aligned, then the crane lowers to the position, a flange fastening bolt is penetrated, and finally butt joint of the lifting pipe component is completed;
after the connection is finished, the lifting pipe supporting device is removed, the electric pump component and the lifting pipe component are slowly lowered to the upper part of the lifting pipe and can be supported by the supporting device again, and then the lifting device is removed;
firstly, measuring the insulation resistance of a pull-up pipe component, injecting cooling oil after meeting the requirement, installing an oil pumping and pressurizing tool for an air pressure test, removing the oil pumping and pressurizing tool after all the parts are normal, carrying out the next step of installation, and making data record;
the purpose of installing the oil pumping and pressing tool to perform air pressure test is as follows: the lifting pipe part has longer rod, more air flow is needed in the air pressure test, and the pressure is not well maintained; after cooling oil is injected, a pressure test is carried out, so that the required gas quantity can be reduced, and the pressure can be maintained conveniently;
according to the operation, 3#, 4#, 5# … … and the nth pulling pipe components, the pulling pipe components with odd numbers or even numbers are installed, 4 centering pulling pipe supporting pieces are needed to be installed at the lower flange of the pulling pipe components, the uniform distribution and the tightening of fasteners are required, and the pulling pipe components with other numbers do not need to be installed.
In an embodiment of the present invention, the step of installing the cover member comprises the steps of:
slowly moving the top cover component to the central position of the sleeve according to the condition that the lower end of the top cover component is 0.8-1.5 meters higher than the flange surface of the sleeve, then slowly lowering to complete the butt joint of the top cover component and the lifting pipe component, and checking whether the scribed lines of the top cover component and the scribed lines of the lifting pipe component are consistent;
hoisting the whole pump, finely adjusting to enable the bottom guide block to enter the guide groove and then be placed down, installing and tightening the fastening piece of the top cover plate and the sleeve flange, and checking whether the scribed lines of the top cover part are consistent with the scribed lines of the sleeve;
and connecting the transmission cable of the submersible pump, connecting the cable joint firmly and screwing the fastening piece.
The positive progress effects of the invention are as follows: the submersible electric pump and the mounting method thereof provided by the invention have the following advantages that: the submersible electric pump is installed in a modularized mode by utilizing the tool, is convenient to install and disassemble, has small overhauling space, and ensures that the whole installation process of the submersible electric pump can be carried out simply, safely and efficiently.
Drawings
Fig. 1-1 is a schematic view of the upper half of the overall structural diagram of the present invention.
Fig. 1-2 are lower half schematic views of the overall structural schematic of the present invention.
Fig. 2-1 is a partial schematic view of fig. 1-1.
Fig. 2-2 is a partial schematic view of fig. 1-2.
FIG. 3 is a schematic view of the installation of the electric pump assembly of the present invention
Fig. 4 is a schematic view of the installation of the pull-up tube member of the present invention.
Fig. 5 is a schematic view of the installation of the cover member of the present invention.
FIG. 6 is a schematic view of the oil pumping and pressing tool of the present invention.
FIG. 7-1 is a front view showing a schematic construction of a pull tube support.
FIG. 7-2 is a top view of a schematic of the structure of the pull tube support.
Fig. 8 is a schematic view of the structure of the guide block and the guide groove portion.
FIG. 9-1 is a front view of a dip tube support device.
FIG. 9-2 is a top view of a pull tube support device.
The following are names corresponding to the reference numbers in the invention:
a top cover part 100, a first flange connecting surface 130, a first hollow conductive tube 101 and a first jack 120;
a pulling pipe component 200, a second flange connecting surface 230, a third flange connecting surface 231, a second hollow conductive pipe 201, a first plug 221, a second jack 220 and a second jack 220;
the electric pump component 300, a fourth flanged connection surface 330, a third hollow conductive pipe 301, a second plug 320 and a fourth flanged connection surface 330;
a sleeve 400, a first support 401, a second support 402;
a dip tube support 500, a support rod 501, a support head 502;
a conductive tube 600;
a guide block 701, a guide groove 702;
a pull tube supporting device 900, a supporting plate 901, a connecting plate 902 and a fastener 903.
Detailed Description
The following provides a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.
Fig. 1-1 is a schematic upper half view of an overall structural diagram of the present invention, fig. 1-2 is a schematic lower half view of an overall structural diagram of the present invention, fig. 2-1 is a partial schematic view of fig. 1-1, and fig. 2-2 is a partial schematic view of fig. 1-2, as shown in the above-mentioned figures, the present invention provides a submersible electric pump comprising: a plurality of stages of lifting pipe parts 200 and sleeves 400 which are connected in series from top to bottom; all of the dip tube parts 200 are installed in the sleeve 400, the lowermost stage of the dip tube parts 200 is connected to the electric pump part 300, and the uppermost stage of the modular dip tube parts 200 is connected to the top cap part 100 fixed to the ground.
The submerged electric pump of the modular conductive cooling support structure comprises a top cover part 100, a first flange connecting surface 130 arranged at the lowest part of the top cover part 100, and a first inserting hole 120 made of a first hollow conductive pipe 101 in an inserting mode.
The submerged pump of the modular conductive cooling support structure further comprises a pulling pipe part 200, wherein the two ends of the pulling pipe part are respectively provided with a second flange connecting surface 230 and a third flange connecting surface 231, and a first plug 221 and a second plug 220 which are made of a second hollow conductive pipe 201 and are in a plug-in mode.
The submersible pump of the modular conductive cooling support structure further comprises an electric pump unit 300 having a fourth flanged connection surface 330 disposed at the uppermost end thereof, and a second plug 320 in the form of a plug formed of a third hollow conductive tube 301.
The top cover part 100 and the lifting pipe part 200 at the top level are connected with the first hollow conductive pipe 101 and the second hollow conductive pipe 201 by adopting a mode that the first jack 120 is inserted into the first plug 221, and are matched with the second flange connecting surface 230 for connection and support through the first flange connecting surface 130; the second hollow conductive tube 201 and the third hollow conductive tube 301 are connected between the pull-up tube part 200 at the lowest stage and the electric pump part 300 by plugging the second jack 220 and the second plug 320, and are supported by the third flange connection surface 231 and the fourth flange connection surface 330 in a matching manner.
The modular electrically conductive cooling support structure submersible electric pump further comprises a sleeve 400, the sleeve 400 being provided with two layers of support, a first support 401 for fixing the sleeve to the building and a second support 402 for suspending and fixing the pump stack.
Fig. 3 is a schematic view of the installation of the electric pump components of the invention, as shown in fig. 3: when the electric pump component is installed, a section of lifting pipe component 200 is preassembled, the scribed line positions of the lifting pipe component and the electric pump component are aligned, 4 centering lifting pipe supporting pieces 500 are installed at the lower flange of the lifting pipe component, and the centering lifting pipe supporting pieces 500 are required to be uniformly distributed and screwed with fastening pieces; the pull-up tube component is labeled 1 #.
The pull tube support 500 is comprised of a support rod 501 and a support head 502 as shown in FIGS. 7-1 and 7-2. When connecting the pulling pipe components, the pulling pipe supporting components are penetrated on the flange fastening bolts and screwed by nuts, and 4 centering pulling pipe supporting components are installed and required to be uniformly distributed. The mounting of the pull tube support reduces vibration of the pull tube assembly during pump operation.
And slowly moving the electric pump component to the central position of the sleeve according to the condition that the lower end of the electric pump component is about 1 meter higher than the flange surface of the sleeve, then slowly lowering the electric pump component onto the lifting pipe supporting device 900, and removing a lifting device (such as a topmost lifting screw C in the figure 3). Referring to FIGS. 9-1 and 9-2, a dip tube support apparatus 900 includes a support plate 901 and a web 902. The lifting pipe supporting device is formed by connecting a supporting part 901 (whole welding part) and a connecting plate 902 by a fastener 903, and as shown in fig. 9-1 and 9-2, when the electric pump part and the lifting pipe part are hoisted, an upper flange of the lifting pipe is clamped on a supporting plate of the supporting part for limiting and supporting.
The electric pump components have been previously injected with cooling oil. Firstly, measuring the insulation resistance of the pull-up pipe component, injecting cooling oil after meeting the requirements, installing an oil pumping and pressurizing tool (see figure 6) for an air pressure test, removing the oil pumping and pressurizing tool after all the parts are normal, carrying out the next step of installation, and recording data.
Fig. 4 is a schematic view of the installation of the pull-up tube member of the present invention. The steps of installing the dip tube component are as follows: according to the fact that the lower end of a lifting pipe component 200 is about 1 meter higher than a sleeve flange face, the lifting pipe component is slowly moved to the center position of the sleeve and then slowly lowered, when three hollow conductive pipes (the three conductive pipes in the lifting pipe component are used as power supply lines of an electric pump, each conductive pipe 600 is installed in an independent protective pipe to achieve an insulation effect, and the three pipes are distributed at a certain distance) and are about 5cm away, the approximate positions of grooves of the lifting pipe component at the upper end and the lower end need to be aligned (the mark A in the figures 3 and 4 is the groove position of the lifting pipe component and is the groove position of the electric pump component B) and the upper position and the lower position of the three conductive pipes are consistent, then the lifting pipe needs to be righted by hands, a crane is slowly lowered, when the lifting pipe component is placed at a flange spigot, the upper flange position can be appropriately rotated to be matched with each other, the grooves are ensured to be aligned up and down, then the crane is lowered in place, a flange fastening bolt is penetrated, finally, the butt joint of the pulling pipe parts is completed, as shown in the following figure 4; the dip tube part is labeled # 2.
After the connection is completed, the pull tube support device is removed, the electric pump assembly and the pull tube assembly are slowly lowered until the upper portion of the pull tube can be supported again by the support device, and then the lifting device is removed, as shown in fig. 4 below.
The method comprises the steps of firstly measuring the insulation resistance of three conductive tubes, injecting cooling oil (the cooling oil is injected into a cooling oil channel of a dip-tube component) after the requirements are met, installing an oil pumping and pressurizing tool for carrying out an air pressure test, removing the oil pumping and pressurizing tool after all the parts are normal, carrying out next installation, and recording data.
The lifting pipe part has longer rod length, more air flow is needed in the air pressure test, and the pressure is not well maintained. After the cooling oil is injected, the required air quantity can be reduced by performing an air pressure test, and the pressure is convenient to maintain.
According to the operation, 3#, 4#, 5# … … to the nth section of the lifting pipe component and the lifting pipe component with odd number (such as 3#, 5# and 7# … …) are installed, 4 centering lifting pipe supporting pieces are needed to be installed at the lower flange of the lifting pipe component, the uniform distribution and the tightening of fasteners are required, and the lifting pipe components with other numbers do not need to be installed, as shown in FIG. 4; the odd-numbered pulling pipe parts are provided with the pulling pipe supporting parts, namely the pulling pipe supporting parts are arranged at intervals of 1 section of pulling pipe parts, so that the effect of reducing the vibration of the pulling pipe parts during the operation of the pump is better. Mounting the dip tube support on each section of dip tube component adds to the number of parts and weight and is not necessary.
Fig. 5 is a schematic view of the installation of the cover member of the present invention, and the steps of installing the cover member 100 are as follows: and (3) slowly moving the top cover component to the central position of the sleeve according to the condition that the lower end of the top cover component is about 1 meter higher than the flange surface of the sleeve, then slowly lowering to complete the butt joint of the top cover component and the lifting pipe component, and checking whether the score lines of the top cover component and the lifting pipe component are consistent or not, as shown in figure 5.
The pump as a whole is lifted, fine-tuned so that the bottom guide block 701 enters the guide channel 702 and then is lowered (see fig. 8), the top cover plate and sleeve flange fasteners are installed and tightened, and it is checked whether the top cover member score line (E in fig. 5) coincides with the sleeve score line position (F in fig. 5) as follows, see fig. 5; and connecting the transmission cable of the submersible pump, connecting the cable joint firmly and screwing the fastening piece.
FIG. 6 is a schematic view of the oil pumping and pressing tool of the present invention. As shown in fig. 6: the oil pumping and pressing tool can meet the air pressure test of the submersible electric pump lifting pipe component and the function of extracting cooling oil. During the air pressure test, the A direction is a high-pressure gas filling port; when the cooling oil is extracted, the direction A in figure 6 is a high-pressure gas filling port, the direction B in figure 6 is a cooling oil discharging port, and a screw plug at the outlet needs to be taken out before oil is discharged.
According to the mounting process of the submersible electric pump with the modular conductive cooling supporting structure, provided by the invention, the main components are mounted in a modular mode by using special tools, the mounting and dismounting are convenient, the overhauling space is small, and the whole mounting process of the submersible electric pump can be carried out simply, safely and efficiently.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (10)
1. A submersible electric pump characterized by: the submersible electric pump comprises: the multi-stage lifting pipe component and the sleeve are connected in series from top to bottom; all the pulling pipe parts are installed in the sleeve, the lowest stage of the pulling pipe parts is connected with the electric pump part, and the uppermost stage of the pulling pipe parts is connected with the top cover part fixed to the ground.
2. The submersible electric pump of claim 1, wherein: the first flange connecting surface and the first jack in the inserting mode made of the first hollow conductive tube are arranged at the lowest part of the top cover part.
3. The submersible electric pump of claim 1, wherein: and a second flange connecting surface and a third flange connecting surface are respectively arranged at two ends of the lifting pipe component, and a first plug and a second jack which are made of a second hollow conductive pipe and are in a plug-in mode are arranged at two ends of the lifting pipe component.
4. The submersible electric pump of claim 1, wherein: the top of the electric pump component is provided with a fourth flange connecting surface and a second plug which is made of a third hollow conductive pipe and is in a plug-in connection mode.
5. The submersible electric pump of claim 2, wherein: the top cover part and the lifting pipe part at the uppermost stage are connected by a first jack and a first plug in an inserting mode to connect the first hollow conductive pipe and the second hollow conductive pipe, and are matched with the second flange connecting surface through the first flange connecting surface to be connected with the support; and the second hollow conductive pipe is connected with the third hollow conductive pipe by adopting a mode that a second jack is plugged with a second plug between the lifting pipe part at the lowest stage and the electric pump part, and meanwhile, the third flange connecting surface is matched with the fourth flange connecting surface to be connected with the support.
6. The submersible electric pump of claim 1, wherein: the sleeve is provided with two layers of supports, a first support fixing the sleeve to the building and a second support for suspending and fixing the pump unit.
7. A method for installing a submersible electric pump comprises the following steps: the method is characterized in that: the installation method comprises the following steps:
the first step is as follows: installing a sleeve;
the second step is that: mounting an electric pump component;
the third step: installing a pulling pipe component;
the fourth step: and installing the top cover component.
8. The method of installing a submersible electric pump according to claim 7, wherein: the mounting of the electric pump assembly comprises the following steps:
when the electric pump component is installed, a section of lifting pipe component is preassembled, the scribed line positions of the lifting pipe component and the electric pump component are aligned, 4 centering lifting pipe supporting pieces are installed at the lower flange of the lifting pipe component, and the centering lifting pipe supporting pieces are required to be uniformly distributed and screwed with fastening pieces; label the pull tube member as 1 #;
according to the condition that the lower end of the electric pump part is 0.8-1.5 m higher than the flange surface of the sleeve, slowly moving the electric pump part to the central position of the sleeve, then slowly putting the electric pump part down on a special lifting pipe supporting device, and dismantling the lifting device;
the electric pump part is injected with cooling oil in advance; the method comprises the steps of firstly measuring the insulation resistance of a pull pipe component, injecting cooling oil after the requirements are met, installing an oil pumping and pressurizing tool for an air pressure test, removing the oil pumping and pressurizing tool after all the parts are normal, carrying out next installation, and recording data.
9. The method of installing a submersible electric pump according to claim 7, wherein: installing the pull tube member includes the steps of:
according to the fact that the lower end of the lifting pipe component is 0.8-1.2 meters higher than the flange face of the sleeve, the lifting pipe component is slowly moved to the center position of the sleeve and then slowly lowered, when the distance between the three conductive pipes is 3-6cm, the approximate positions of the scribed lines of the lifting pipe component at the upper end and the lower end need to be aligned, the three conductive pipes are consistent in the upper position and the lower position, then the lifting pipe component needs to be centered by hands, the crane slowly lowers, when the lifting pipe component is placed at the flange rabbets and is matched with each other, the upper flange position can be properly rotated, the upper scribed lines and the lower scribed lines are aligned, then the crane lowers to the position, a flange fastening bolt is penetrated, and finally butt joint of the lifting pipe component is completed;
after the connection is finished, the lifting pipe supporting device is detached, the electric pump component and the lifting pipe component are slowly lowered to the upper part of the lifting pipe until the upper part of the lifting pipe can be supported by the supporting device again, and then the lifting device is detached;
firstly, measuring the insulation resistance of a pull-up pipe component, injecting cooling oil after meeting the requirement, installing an oil pumping and pressurizing tool for an air pressure test, removing the oil pumping and pressurizing tool after all the parts are normal, carrying out the next step of installation, and making data record;
the purpose of installing the oil pumping and pressing tool to perform air pressure test is as follows: the lifting pipe part has longer rod, more air flow is needed in the air pressure test, and the pressure is not well maintained; after cooling oil is injected, a gas pressure test is carried out, so that the required gas quantity can be reduced, and the pressure can be maintained conveniently;
according to the above operation, 3#, 4#, 5# … … to the nth stage of the pulling pipe component, the odd-numbered or even-numbered pulling pipe component, 4 centering pulling pipe supporting components are required to be arranged at the lower flange of the pulling pipe component, the uniform distribution and the tightening of the fastening pieces are required, and the other numbered pulling pipe components are not required to be arranged.
10. The method of installing a submersible electric pump according to claim 7, wherein: the mounting of the cover member comprises the steps of:
slowly moving the top cover component to the central position of the sleeve according to the condition that the lower end of the top cover component is 0.8-1.5 meters higher than the flange surface of the sleeve, then slowly lowering to complete the butt joint of the top cover component and the lifting pipe component, and checking whether the scribed lines of the top cover component and the scribed lines of the lifting pipe component are consistent;
hoisting the whole pump, finely adjusting to enable the bottom guide block to enter the guide groove and then be placed down, installing and tightening the fastening piece of the top cover plate and the sleeve flange, and checking whether the scribed lines of the top cover part are consistent with the scribed lines of the sleeve;
and connecting the submersible pump transmission cable, firmly connecting the cable joint and screwing the fastening piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111449859.7A CN114922811B (en) | 2021-11-30 | 2021-11-30 | Submersible electric pump and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111449859.7A CN114922811B (en) | 2021-11-30 | 2021-11-30 | Submersible electric pump and installation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114922811A true CN114922811A (en) | 2022-08-19 |
| CN114922811B CN114922811B (en) | 2024-05-14 |
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| CN202111449859.7A Active CN114922811B (en) | 2021-11-30 | 2021-11-30 | Submersible electric pump and installation method thereof |
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| CN (1) | CN114922811B (en) |
Citations (10)
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| CN105889135A (en) * | 2015-02-18 | 2016-08-24 | 苏尔寿管理有限公司 | Suppressing device for a vertical pump, vertical pump and method for retrofitting a vertical pump |
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| CN212296274U (en) * | 2020-04-19 | 2021-01-05 | 潘烁 | Multi-section type drill rod splicing and centering mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2861561Y (en) * | 2005-09-21 | 2007-01-24 | 天津加马机械厂 | Submersible oil pump |
| CN101298870A (en) * | 2008-05-19 | 2008-11-05 | 宁波巨神制泵实业有限公司 | Method for mounting large-scale electric underwater pump |
| KR200449653Y1 (en) * | 2009-05-15 | 2010-07-28 | 신우중공업주식회사 | Underwater moter pump equipment |
| CN201650779U (en) * | 2010-03-24 | 2010-11-24 | 天津加马机械厂 | Submersible pump for quickly transporting oil |
| CN105889135A (en) * | 2015-02-18 | 2016-08-24 | 苏尔寿管理有限公司 | Suppressing device for a vertical pump, vertical pump and method for retrofitting a vertical pump |
| CN109595181A (en) * | 2019-01-16 | 2019-04-09 | 上海凯泉泵业（集团）有限公司 | A kind of modularization conduction cooling support structure subduction electric pump |
| KR102000563B1 (en) * | 2019-01-30 | 2019-07-16 | 제일기계공업주식회사 | Underwater pump with float prevention pipe |
| KR102025102B1 (en) * | 2019-03-19 | 2019-09-25 | 이강주 | in-water pump facility in column type |
| CN110107221A (en) * | 2019-06-04 | 2019-08-09 | 常州骏铎机械制造有限公司 | A kind of ultra-large aperture pore-forming equipment and method suitable for complex geological condition |
| CN212296274U (en) * | 2020-04-19 | 2021-01-05 | 潘烁 | Multi-section type drill rod splicing and centering mechanism |
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| CN114922811B (en) | 2024-05-14 |
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