CN212155173U - Deep water submersible electric pump - Google Patents

Deep water submersible electric pump Download PDF

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Publication number
CN212155173U
CN212155173U CN202020802818.6U CN202020802818U CN212155173U CN 212155173 U CN212155173 U CN 212155173U CN 202020802818 U CN202020802818 U CN 202020802818U CN 212155173 U CN212155173 U CN 212155173U
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China
Prior art keywords
pump body
pump
water
submersible
pipe
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Active
Application number
CN202020802818.6U
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Chinese (zh)
Inventor
舒雪辉
李明锋
陈波波
钱凤辉
丁建强
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Hefei Hengda Jianghai Pump Co Ltd
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Hefei Hengda Jianghai Pump Co Ltd
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Priority to CN202020802818.6U priority Critical patent/CN212155173U/en
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Abstract

The utility model belongs to the field of submersible electric pump and discloses a deep water submersible electric pump; the submersible pump comprises a submersible motor and a bracket, wherein the bracket is provided with a first pump body and a second pump body, the first pump body is fixedly connected to the bracket, and the second pump body is arranged on the first pump body; a first impeller is arranged in the first pump body, a second impeller is arranged in the second pump body, the first impeller and the second impeller are sleeved on a pump shaft, and the pump shaft is connected with a submersible motor; a first water inlet pipe is arranged on the lower side of the first pump body, a second water inlet pipe is arranged on the lower side of the second pump body, a first drain pipe is arranged on the upper side of the first pump body, and a second drain pipe is arranged on the upper side of the second pump body; the output end of the first drain pipe is respectively connected with the lower end of the second pump body and a third drain pipe, and the output end of the second drain pipe is also connected to the third drain pipe; the utility model discloses make things convenient for the conversion working method, reduced the lift, improved work efficiency, have extensive application prospect.

Description

Deep water submersible electric pump
Technical Field
The utility model relates to a submerged motor pump technical field, concretely relates to deep water submerged motor pump.
Background
The deep water submersible electric pump is mainly used for forced drainage operation of deeper water sources, such as dangerous drainage of mines, and the situation is often encountered in the deep water drainage process: firstly, in the initial stage of drainage, the accumulated water volume is large, the water level is high, the drainage time can be shortened by large-flow drainage, double-pump parallel operation is generally adopted, and the method has low lift but large flow; and along with the reduction of water level, the lift of double pump parallel operation just can not reach the requirement, can select the big double pump tandem operation of lift usually this moment, and water increases voltage through the secondary of double pump to improve the lift. In the prior art, the structure transformation of the parallel and serial connection of the double pumps usually needs manual disassembly and assembly, time and labor are wasted, and the drainage needs to be stopped in the assembly process, so that the working efficiency of the submersible pump and the management level and economic benefit of a drainage system are reduced, and the timeliness of emergency rescue and disaster relief is influenced.
In the prior art, a deep-water submersible electric pump generally needs to be arranged underwater, so that the submersible electric pump is arranged underwater, the drainage lift is increased invisibly, and the drainage flow rate is reduced; in addition, the submersible electric pump is always positioned at the water bottom, and the larger suction force of the water suction port is easy to suck the sludge at the water bottom to block the water inlet, so that the equipment is easy to damage; and for the submerged motor pump arranged in deep water, the submerged motor pump needs to bear huge pressure caused by the depth of a water body, and the submerged motor pump is always placed in deep water, so that high requirements can be provided for the pressure bearing capacity of the submerged motor pump, and the use requirements can be met only by improving the cost and enhancing the pressure resistance capacity of the submerged motor pump. In view of this, how to provide a submerged electric pump which can conveniently adjust the series-parallel connection working mode, has high working efficiency, and is suitable for being used in deep water is a technical problem to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to inconvenient regulation cluster parallel operation mode among the prior art need set up the submerged motor pump at the difficult problem of submarine work all the time, and provide one kind can conveniently adjust cluster parallel operation mode, work efficiency height, be applicable to the deep water submerged motor pump that uses in the deep water.
The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize:
the deep water electric submersible pump comprises a vertically upward submersible motor and a support arranged at the upper end of the submersible motor, wherein a first pump body and a second pump body are arranged at the upper end of the support; a first impeller is arranged in the first pump body, a second impeller is arranged in the second pump body, the first impeller and the second impeller are sleeved on a pump shaft, and the pump shaft sequentially penetrates through the second pump body and the first pump body and then is connected with a rotor of the submersible motor; a first water inlet pipe is arranged on the lower side of the first pump body, a second water inlet pipe is arranged on the lower side of the second pump body, a first drain pipe is arranged on the upper side of the first pump body, and a second drain pipe is arranged on the upper side of the second pump body; the output end of the first drain pipe is respectively connected with the lower end of the second pump body and a third drain pipe, and the output end of the second drain pipe is also connected to the third drain pipe; a first switch valve is arranged on the second water inlet pipe, a second switch valve is arranged between the first water discharge pipe and the second pump body, and a third switch valve is arranged between the first water discharge pipe and the third water discharge pipe; the pump shaft and the first pump body and the pump shaft and the second pump body are connected through a bearing, and sealing rings are arranged between the pump shaft and the first pump body and between the pump shaft and the second pump body; the pump shaft is also sleeved with two auxiliary impellers, wherein one auxiliary impeller is arranged in the first pump body, and the other auxiliary impeller is arranged in the second pump body; the upper end of the second pump body is provided with an air bag, and the second pump body is connected with the air bag through a flexible connection rope.
Preferably, the casing of the submersible motor is connected with the bracket through a bolt.
Preferably, the pump shaft is connected with a rotor of the submersible motor through a coupling.
Preferably, check valves are arranged on the first water inlet pipe, the first water discharge pipe and the second water discharge pipe.
Preferably, a bearing base is arranged below the submersible motor and is connected with the support through a connecting rod.
Preferably, the water inlet of first inlet tube and second inlet tube is higher than the dive motor, just all the cover is equipped with on the water inlet of first inlet tube and second inlet tube and hinders mud cover.
Preferably, the diameters of the first drain pipe and the second drain pipe are equal, and the diameters of the first drain pipe and the second drain pipe are smaller than the diameter of the third drain pipe.
After the above structure is adopted in the utility model, beneficial effect lies in:
(1) in the utility model, the first switch valve and the third switch valve are opened and the second switch valve is closed at a period of time just before water pumping, so that the first water inlet pipe and the second water inlet pipe can pump water simultaneously, and a low-lift large-flow double-pump parallel drainage mode is formed; in the working process, along with the slow reduction of the water level, the lift of the deepwater submersible pump is increased, at the moment, the first switch valve and the third switch valve can be closed, the second switch valve is opened, water enters from the first water inlet pipe, is pressurized by the first impeller in the first pump body, is discharged into the second pump body through the first water discharge pipe, is increased through the second impeller in the second pump body, and is sequentially discharged through the second water discharge pipe and the third water discharge pipe; the utility model does not need to dismantle and install the equipment again when switching the working mode, improves the operation efficiency and the operation continuity, saves the installation time, and avoids unnecessary damage to the equipment in the dismounting process;
(2) the utility model fills the air bag with gas before working, then puts the whole deep-water submersible electric pump into water, because of the buoyancy, the air bag can float on the water surface, the deep-water submersible electric pump is always in the position near the water level, because the deep-water submersible electric pump is near the water level, the pressure of water is lower, the pressure on the surface of the pump body is also lower, the surface of the pump body does not need to be designed in a special compression resistance way, and further the cost is reduced invisibly; meanwhile, the deep-water submersible electric pump is always positioned near the water level, and compared with the prior art that the deep-water submersible electric pump is always arranged at the water bottom, the lift is reduced, the drainage power is saved, and the drainage flow is increased; the damage to the pump body caused by the water bottom sludge and particle impurities entering the water pump is also avoided;
(3) the utility model is provided with the auxiliary impellers in the first pump body and the second pump body, the arranged auxiliary impellers play a sealing role on one hand, on the other hand, the axial force action of the pump shaft is reduced, the service life of the bearing is prolonged, and the service life of the equipment is further prolonged;
(4) the utility model can keep the whole device in the position near the water level surface all the time through the buoyancy formed by the floating of the air bag on the water surface, thereby effectively avoiding the damage of strong water pressure at the bottom to the equipment;
(5) the utility model discloses need not the middle people and carrying out the people for change working method, also reduced the lift simultaneously, improved work efficiency, be applicable to deep water drainage work, have extensive application prospect.
Drawings
The present invention will be described in further detail with reference to the following examples, which are not intended to limit the invention.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the submersible pump comprises a submersible motor 1, a support 2, a first pump body 3, a second pump body 4, a first impeller 5, a second impeller 6, a pump shaft 7, a first water inlet pipe 8, a second water inlet pipe 9, a first water discharge pipe 10, a second water discharge pipe 11, a third water discharge pipe 12, a first switch valve 13, a second switch valve 14, a third switch valve 15, a bearing 16, a sealing ring 17, an auxiliary impeller 18, an air bag 19, a flexible connecting rope 20, a coupler 21, a check valve 22, a bearing base 23, a connecting rod 24 and a mud blocking cover 25.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to the attached drawing 1, the deep water submersible electric pump of the present invention comprises a vertically upward submersible motor 1 and a bracket 2 disposed at the upper end of the submersible motor 1, wherein a casing of the submersible motor 1 is connected with the bracket 2 through a bolt, a first pump body 3 and a second pump body 4 are disposed at the upper end of the bracket 2, the first pump body 3 is fixedly connected to the upper end of the bracket 2, and the second pump body 4 is disposed at the upper end of the first pump body 3; a first impeller 5 is arranged in the first pump body 3, a second impeller 6 is arranged in the second pump body 4, the first impeller 5 and the second impeller 6 are both sleeved on a pump shaft 7, and the pump shaft 7 sequentially penetrates through the second pump body 4 and the first pump body 3 and then is connected with a rotor of the submersible motor 1 through a coupling 21; a first water inlet pipe 8 is arranged on the lower side of the first pump body 3, a second water inlet pipe 9 is arranged on the lower side of the second pump body 4, a first drain pipe 10 is arranged on the upper side of the first pump body 3, and a second drain pipe 11 is arranged on the upper side of the second pump body 4; the output end of the first drain pipe 10 is respectively connected with the lower end of the second pump body 4 and the third drain pipe 12, the output end of the second drain pipe 11 is also connected to the third drain pipe 12, the first water inlet pipe 8, the first drain pipe 10 and the second drain pipe 11 are respectively provided with a check valve 22, the diameters of the first drain pipe 10 and the second drain pipe 11 are equal, and the diameters of the first drain pipe 10 and the second drain pipe 11 are smaller than the diameter of the third drain pipe 12; a first switch valve 13 is arranged on the second water inlet pipe 9, a second switch valve 14 is arranged between the first water discharge pipe 10 and the second pump body 4, and a third switch valve 15 is arranged between the first water discharge pipe 10 and the third water discharge pipe 12; the pump shaft 7 and the first pump body 3 and the pump shaft 7 and the second pump body 4 are connected through a bearing 16, and sealing rings 17 are arranged between the pump shaft 7 and the first pump body 3 and between the pump shaft 7 and the second pump body 4; the pump shaft 7 is also sleeved with two auxiliary impellers 18, wherein one auxiliary impeller 18 is arranged in the first pump body 3, and the other auxiliary impeller 18 is arranged in the second pump body 4; an air bag 19 is arranged at the upper end of the second pump body 4, the second pump body 4 is connected with the air bag 19 through a flexible connecting rope 20, a bearing base 23 is arranged below the submersible motor 1, and the bearing base 23 is connected with the support 2 through a connecting rod 24; the water inlet of first inlet tube 8 and second inlet tube 9 is higher than dive motor 1, just all the cover is equipped with on the water inlet of first inlet tube 8 and second inlet tube 9 and hinders mud cover 25.
The working principle is as follows: the utility model discloses deep water submerged motor pump is before work with gasbag 19 full of gas, then put into the aquatic with whole deep water submerged motor pump, because buoyancy, gasbag 19 can float on the surface of water, deep water submerged motor pump is in near position below the water level all the time, because deep water submerged motor pump is in near the water level, the pressure of water is lower, and is also less to the pressure on pump body surface, and pump body surface need not carry out the resistance to compression design, and then invisibly reduce the cost; meanwhile, the deep-water submersible electric pump is always positioned near the water level, and compared with the prior art that the deep-water submersible electric pump is always arranged at the water bottom, the lift is reduced, the drainage power is saved, and the drainage flow is increased; the damage to the pump body caused by the water bottom sludge and particle impurities entering the water pump is also avoided; in a period of time when water is pumped, the water level is high, the lift of the deepwater submersible pump is low, the first water inlet pipe 8 and the second water inlet pipe 9 pump water simultaneously by opening the first switch valve 13 and the third switch valve 15 and closing the second switch valve 14, and a low-lift large-flow double-pump parallel drainage mode is formed; in the working process, along with the slow reduction of the water level, the lift of the deepwater submersible pump is increased, the pressure of a double-pump parallel drainage mode is not enough to meet the requirement of high lift, so that double-pump serial drainage needs to be carried out, at the moment, a first switch valve 13 and a third switch valve 15 can be closed, a second switch valve 14 is opened, water enters from a first water inlet pipe 8, is pressurized by a first impeller 5 in a first pump body 3, is discharged into a second pump body 4 through a first drainage pipe 10, is increased by a second impeller 6 in the second pump body 4, and is discharged through a second drainage pipe 11 and a third drainage pipe 12, the drainage pressure is increased by the double-pump serial connection mode, the drainage lift is increased, and the deepwater submersible pump is suitable for deepwater drainage operation; the utility model discloses need not dismantle again, erection equipment when switching working method, improved efficiency, the continuity of operation and the time of having practiced thrift, avoid dismantling the unnecessary damage that the in-process caused equipment.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. The deep water electric submersible pump comprises a vertically upward submersible motor (1) and a bracket (2) arranged at the upper end of the submersible motor (1), and is characterized in that a first pump body (3) and a second pump body (4) are arranged at the upper end of the bracket (2), the first pump body (3) is fixedly connected to the upper end of the bracket (2), and the second pump body (4) is arranged at the upper end of the first pump body (3); a first impeller (5) is arranged in the first pump body (3), a second impeller (6) is arranged in the second pump body (4), the first impeller (5) and the second impeller (6) are sleeved on a pump shaft (7), and the pump shaft (7) sequentially penetrates through the second pump body (4) and the first pump body (3) and then is connected with a rotor of the submersible motor (1); a first water inlet pipe (8) is arranged on the lower side of the first pump body (3), a second water inlet pipe (9) is arranged on the lower side of the second pump body (4), a first drain pipe (10) is arranged on the upper side of the first pump body (3), and a second drain pipe (11) is arranged on the upper side of the second pump body (4); the output end of the first drain pipe (10) is respectively connected with the lower end of the second pump body (4) and a third drain pipe (12), and the output end of the second drain pipe (11) is also connected to the third drain pipe (12); a first switch valve (13) is arranged on the second water inlet pipe (9), a second switch valve (14) is arranged between the first water discharge pipe (10) and the second pump body (4), and a third switch valve (15) is arranged between the first water discharge pipe (10) and the third water discharge pipe (12); the pump shaft (7) is connected with the first pump body (3) and the pump shaft (7) is connected with the second pump body (4) through a bearing (16), and sealing rings (17) are arranged between the pump shaft (7) and the first pump body (3) and between the pump shaft (7) and the second pump body (4); two auxiliary impellers (18) are further sleeved on the pump shaft (7), one of the auxiliary impellers (18) is arranged in the first pump body (3), and the other auxiliary impeller (18) is arranged in the second pump body (4); the upper end of the second pump body (4) is provided with an air bag (19), and the second pump body (4) is connected with the air bag (19) through a flexible connecting rope (20).
2. The submersible electric pump according to claim 1, characterized in that the housing of the submersible motor (1) is connected to the bracket (2) by means of bolts.
3. The submersible electric pump according to claim 1, characterized in that the pump shaft (7) is connected to the rotor of the submersible motor (1) by means of a coupling (21).
4. The submersible electric pump according to claim 1, characterized in that said first intake pipe (8), said first discharge pipe (10) and said second discharge pipe (11) are provided with non-return valves (22).
5. The submersible electric pump according to claim 1, characterized in that a load-bearing base (23) is arranged below the submersible motor (1), said load-bearing base (23) being connected to the bracket (2) by means of a connecting rod (24).
6. The deep water submersible electric pump according to claim 1, characterized in that the water inlets of the first water inlet pipe (8) and the second water inlet pipe (9) are higher than the submersible electric motor (1), and the water inlets of the first water inlet pipe (8) and the second water inlet pipe (9) are both sleeved with a mud blocking cover (25).
7. A submersible electric pump according to claim 1, characterized in that the first (10) and second (11) discharge pipes have equal diameter and the first (10) and second (11) discharge pipes have smaller diameter than the third (12) discharge pipe.
CN202020802818.6U 2020-05-14 2020-05-14 Deep water submersible electric pump Active CN212155173U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020802818.6U CN212155173U (en) 2020-05-14 2020-05-14 Deep water submersible electric pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020802818.6U CN212155173U (en) 2020-05-14 2020-05-14 Deep water submersible electric pump

Publications (1)

Publication Number Publication Date
CN212155173U true CN212155173U (en) 2020-12-15

Family

ID=73711039

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020802818.6U Active CN212155173U (en) 2020-05-14 2020-05-14 Deep water submersible electric pump

Country Status (1)

Country Link
CN (1) CN212155173U (en)

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