CN112928866B - Cooling circulation loop for high-power high-speed submersible pump - Google Patents
Cooling circulation loop for high-power high-speed submersible pump Download PDFInfo
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- CN112928866B CN112928866B CN202110168430.4A CN202110168430A CN112928866B CN 112928866 B CN112928866 B CN 112928866B CN 202110168430 A CN202110168430 A CN 202110168430A CN 112928866 B CN112928866 B CN 112928866B
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- 238000001816 cooling Methods 0.000 title claims abstract description 48
- 239000000110 cooling liquid Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 210000004907 gland Anatomy 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims 1
- 241000135164 Timea Species 0.000 abstract 1
- 239000011540 sensing material Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/132—Submersible electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a cooling circulation loop for a high-power high-speed submersible pump, which comprises a first cavity arranged in the submersible pump
A second chamber
A third chamber
A fourth chamber
(ii) a The cooling circulation loop comprises a first through hole A and a first through hole B which are arranged in the bearing support, a connecting hole A and a connecting hole B which are arranged in the motor end cover, and two ends of the first through hole A are communicated with the second chamber
And a third chamber
Two ends of the first through hole B are respectively connected with the third chamber
Is communicated with the connecting hole A; two ends of the connecting hole B are communicated with the first cavity
And the fourth chamber
The connecting hole B is also vertically intersected with the connecting hole A, and the connecting hole B and the connecting hole A are intersected at the same timeA first control valve for controlling the connection of the connection hole A and the connection hole B is arranged at the position of the point, and the third chamber
The first through hole A and the third chamber are controlled to be arranged in the chamber
And the second control valve is switched on and off.
Description
Technical Field
The invention belongs to the field of fluid machinery, and particularly relates to a cooling circulation loop for a high-power high-speed submersible pump.
Background
The high-power high-speed submersible pump adopts a wet motor to ensure the operation reliability of the unit, and in the existing unit, an independent internal cooling circulation loop is adopted to cool and dissipate heat of the wet motor and simultaneously cool and lubricate components such as bearings and the like. The specific circulation mode is that a thrust disc arranged at one end of a motor cavity is used as an auxiliary impeller to provide a power source, cooling liquid reaches one end of the motor cavity far away from the thrust disc through a cooling circulation pipe, and returns to the thrust disc through areas such as a lower sliding bearing, a motor air gap and an upper sliding bearing to form a cooling circulation loop. In the loop mode, the cooling liquid flowing out from the supply end needs to firstly pass through the motor air gap and then enter the upper sliding bearing, the motor air gap is a main heat gathering part in the motor, and the sliding bearing has larger self heat productivity, so that the temperature of the upper sliding bearing is easily higher. Particularly under the high-power working condition, the phenomenon is more obvious, so that the cooling liquid is further too high to lose efficacy, parts behind the pump cannot be effectively cooled, and the whole submersible pump unit cannot normally work.
Disclosure of Invention
The invention provides a cooling circulation loop for a high-power high-speed submersible pump, aiming at the problem that cooling liquid in a cooling circulation loop arranged in the submersible pump is easily failed in cooling of an upper sliding bearing due to the influence of overlarge heat productivity at an air gap of a motor, and particularly the problem that the cooling liquid is easily failed in a high-power state.
In order to achieve the technical purpose and achieve the technical effects, the invention is realized by the following technical scheme:
a cooling circulation loop for high-power high-speed immersible pump, including setting up in immersible pump inside
The first chamber
The thrust disc is positioned in an area enclosed by the motor end cover and the bottom of the thrust disc;
second chamber
The thrust disc is positioned in a region enclosed by the motor end cover, the inner wall of the motor, the bearing support and the top of the thrust disc;
third chamber
The thrust plate is positioned in an area surrounded by the bearing support, the sliding bearing gland, the sliding bearing, the thrust disc and the thrust bearing gland;
the fourth chamber
The motor bottom cover and the motor end cover are positioned in an area surrounded by the motor bottom cover and the motor end cover;
still include the cooling circulation branch road, the cooling circulation branch road including set up in first through-hole A and first through-hole B in the bearing support, set up in connecting hole A and connecting hole B in the motor end cover, the both ends intercommunication of first through-hole A the second cavity
And said third chamber
Two ends of the first through hole B are respectively connected with the third chamber
Is communicated with the connecting hole A; the two ends of the connecting hole B are communicated with the first cavity
And the fourth chamber
The connecting hole B is also vertically intersected with the connecting hole A, a first control valve for controlling the connection and disconnection of the connecting hole A and the connecting hole B is arranged at the intersection point of the connecting hole B and the connecting hole A, and the third chamber
The first through hole A and the third chamber are controlled to be arranged in the chamber
And the second control valve is switched on and off.
As a further improvement of the invention, the second control valve is a temperature control valve, and the opening degree of the valve is adjusted according to the environment to connect or disconnect the cooling circulation branch.
As a further improvement of the invention, the temperature control valve is arranged at the liquid outlet port of the first through hole a, and comprises a thermostat, a thermostat fixing support fixed on the bearing support, and a valve cover arranged inside the thermostat fixing support to divide the inside of the thermostat fixing support into a fifth chamber
And a sixth chamber
The fifth chamber
Through the first through hole A and the second chamber
Communicate, the sixth chamber
And the third chamber
Communicating; the inner wall of the middle position in the thermostat fixing support is provided with a sealing end face matched with the outer edge of the valve cover, the lower end of the valve cover is connected with a valve rod of the thermostat, the valve rod extends along with the rise of temperature to adjust the degree of contact between the valve cover and the thermostat fixing support, and therefore the fifth chamber is adjusted
And the sixth chamber
On or off the second chamber
And a third chamber
To be connected.
As a further improvement of the invention, the valve cover comprises a valve cover A positioned in the middle and a valve cover B positioned in the outer ring, the valve cover A and the valve cover B are fixedly connected, and the outer edge of the valve cover B and the inner wall of the middle of the thermostat fixing support are provided with mutually matched sealing end faces.
As a further improvement of the invention, the liquid inlet end of the connecting hole A is connected with the liquid outlet end of the first through hole B through a connecting pipe, and the first control valve is arranged at the other end of the connecting hole A.
As a further improvement of the invention, the first control valve is an elastic control valve, and is provided with a valve port parallel to the direction of the connecting hole B;
when the second control valve is in a disconnected state, the pressure of the connecting hole A is low, the upward pressure of the connecting hole A acting on the bottom end of the first control valve is smaller than the spring force borne by the upper end of the first control valve, the first control valve is positioned in the aperture of the connecting hole A, and the valve port of the first control valve is in a sealed state;
when the second control valve is in a communication state, the pressure of the connecting hole A is increased, the first control valve is pushed to move towards the other end of the connecting hole A until the valve port of the first control valve moves to the intersection point of the connecting hole A and the connecting hole B, and the connecting hole B is communicated.
As a further improvement of the invention, the first control valve comprises a spring connecting piece and a piston which are connected with each other, the lower end of the piston is provided with the valve port, the maximum elongation of the spring connecting piece is smaller than the part of the connecting hole A, which exceeds the connecting hole B, the size of the piston, which is positioned at the upper end of the valve port, is larger than the diameter of the connecting hole B, and the piston is attached to the inner wall of the connecting hole A.
As a further improvement of the invention, the radial direction of the thrust disc is provided with a communication first chamber
And the second chamber
The axial direction of the radial hole is communicated with the third chamber
The axial bore of (a).
As a further development of the invention, the second chamber
The upper part of the cooling tower is also connected with a cooling liquid circulating pipe.
The invention has the beneficial effects that: the cooling circulation loop arranged in the submersible pump around the upper sliding bearing can be automatically switched on and off according to the running power condition of the pump, so that the upper sliding bearing near the heating accumulation position can be effectively cooled, the overhigh temperature of the cooling liquid circulating in the main circulation pipeline of the pump is avoided, and the whole pump can be effectively cooled.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 2;
FIG. 4 is an enlarged view at C of FIG. 2;
FIG. 5 is a path diagram of a fluid flowing in the cooling circulation circuit;
wherein: 1-motor bottom cover, 2-motor end cover, 3-motor outer wall, 4-motor inner wall, 5-main shaft, 6-cooling circulation pipe, 7-thrust disc, 8-thrust bearing cover, 9-bearing support, 10-sliding bearing cover, 11-sliding bearing, 12-connecting pipe, 13-sealing ring, 14-thermostat fixing support, 15-thermostat, 16-thermostat valve cover A, 17-thermostat valve cover B, 18-piston, 19-spring connecting piece;
201-connecting hole A, 202-connecting hole B, 901-first through hole A, 902-first through hole B, 1401-second through hole, 1801-valve port.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description of the principles of the invention is provided in connection with the accompanying drawings.
As shown in fig. 1-5, a motor bottom cover 1, a motor end cover 2 and a motor outer wall 3 are sequentially arranged from left to right along the axial direction of the unit at the initial left end of the pump, and are connected through a fastener to form the outer end of the whole unit and a motor left cavity. The motor inner wall 4 is positioned on the right side of the motor end cover 2, is connected with the motor end cover 2 through a fastener, forms a motor right cavity with the motor end cover 2, forms a medium conveying channel with the motor outer wall 3, and is provided with a cooling circulating pipe 6 on the motor inner wall 4.
The inner space of the left cavity of the motor is divided into a plurality of cavities, specifically, the divided cavities sequentially comprise a fourth cavity IV formed by an area surrounded by the motor bottom cover 1 and the motor end cover 2 from left to right, a first cavity I formed by an area surrounded by the motor end cover 2 and the bottom of the thrust disc 7, the motor end cover 2, the motor inner wall 4, a second cavity II formed by an area surrounded by the bearing support 9 and the top of the thrust disc 7, and a third cavity III formed by an area surrounded by the bearing support 9, the sliding bearing gland 10, the sliding bearing 11, the thrust disc 7 and the thrust bearing gland 8. The second chamber II is located at the radially upper end of the first chamber I, as seen in spatial position.
Wherein, the communication condition of each chamber is as follows: the radial hole of the thrust disc 7 communicates with the first chamber I and the second chamber II, the axial hole of the thrust disc 7 communicates with the radial hole of the thrust disc and the third chamber III, and the connecting passage is always in a communicating state and is arranged in a main cooling circulation loop (such as a path indicated by a solid arrow in fig. 5) of the pump machine. In addition, the invention also provides an auxiliary cooling circulation branch (such as a path indicated by a dotted arrow in fig. 5) based on the first chamber I and the second chamber II, wherein the third chamber III is communicated with the outermost fourth chamber iv, the auxiliary cooling circulation branch is arranged around a heat accumulation position of the motor air gap, the auxiliary cooling circulation branch is automatically opened when the temperature of the third chamber III is too high, new cooling liquid is supplemented into the fourth chamber iv, and the cooling circulation branch is used for supplementing and cooling parts such as a bearing and a thrust disc arranged on one side of the motor air gap, so that the situation that the temperature of the cooling liquid in a main cooling circulation pipeline running in the pump machine is too high can be avoided.
The specific structure and the connecting passage of the cooling circulation branch designed by the invention are as follows: the bearing supportA first through hole a901 and a first through hole B902 in the frame 9; a connecting hole A201 and a connecting hole B202 which are arranged in the motor end cover 2, wherein two ends of the first through hole A901 are communicated with the second chamber
And said third chamber
Two ends of the first through hole B902 are respectively connected with the third chamber
Is communicated with the connecting hole A201; both ends of the connecting hole B202 are communicated with the first chamber
And the fourth chamber
The connecting hole B202 is also vertically intersected with the connecting hole A201, a first control valve for controlling the connection and disconnection of the connecting hole A201 and the connecting hole B202 is arranged at the intersection point of the connecting hole B202 and the connecting hole A201, and the third chamber is
The first through hole A901 and the third chamber are controlled
And the second control valve is switched on and off.
The second control valve is a temperature control valve, and the opening degree of the valve is adjusted according to the environment to connect or disconnect the cooling circulation branch.
In the embodiment of the present invention, the temperature control valve is disposed at the liquid outlet port of the first through hole a901, and includes a thermostat 15 and a thermostat fixing bracket 14, and the thermostat fixing bracket 14 is fixed on the bearing bracket 9 by a bolt connection. The thermostat fixing bracket 14 is internally provided withThere are thermostat valve gap A16 and thermostat valve gap B17 of mutual fixed connection, and both fixed connection constitute the valve gap, the valve gap is located the intermediate position of temperature control valve, thermostat valve gap A16 fix in thermostat telescopic link one end, thermostat valve gap B17 outward flange with thermostat fixed bolster 14 inward flange is equipped with the sealed terminal surface of mutually supporting, will thermostat fixed bolster 14's internal partitioning is the fifth cavity room
And a sixth chamber
. The fifth chamber
Through the first through hole A901 and the second chamber
Communicate, the sixth chamber
Corresponding to the third chamber through the lower end of the thermostat fixing bracket 14
In the radial direction, and the third chamber
Communicating; the free end of the valve rod of the thermostat 15 is connected with the valve cover A16, the expansion elongation of the valve rod increases along with the rise of the ambient temperature, the degree of contact between the valve cover and the thermostat fixing support 14 is adjusted, and therefore the fifth chamber is adjusted
And the sixth chamber
On or off the second chamber
And a third chamber
To be connected.
The temperature sensing material such as paraffin is filled in the thermostat 15, the material is solid at normal temperature, and when the solid material in the thermostat 15 is not heated and melted in the low-power running state of the pump, the sealing end face between the valve cover and the thermostat fixing support 14 is tightly attached to separate the fifth chamber V and the sixth chamber VI, namely, the fifth chamber V and the sixth chamber VI have no water flowing. When the temperature sensing material exceeds the temperature threshold (during assembly, the specific temperature threshold of the selected thermostat 15 can be determined according to the requirement of temperature rise in the motor cavity), the temperature sensing material is heated and melted to become liquid, the volume is increased, the rubber tube is compressed, the push rod is pushed to drive the valve cover to be ejected upwards, the valve cover is separated from the thermostat fixing support 14, and the fifth cavity is communicated
And a sixth chamber
. At this time, the liquid flow can be from the second chamber
Flows to the third chamber III through the first through hole A901 of the bearing bracket, the fifth chamber V, the sixth chamber VI and the second through hole 1401 arranged on the thermostat bracket, and the part of cooling liquid cools and lubricates the upper sliding bearing because of the second chamber
The water in the third chamber III is thrown out through the radial holes of the thrust disc, the pressure is obviously increased, and at the moment, the liquid pressure in the third chamber III is also increased along with the pressure.
The connecting pipe 12 is respectively communicated with the first through hole B902 and the connecting hole A201 through a connecting pipe bolt and a sealing ring, so that the pressure in the third chamber III can be applied to the first control valve positioned in the connecting hole A201 through the first through hole B902 of the bearing bracket, the connecting pipe 12 and the connecting hole A201 of the motor end cover, the valve port position of the first control valve is adjusted, and the fourth chamber IV and the first chamber I are communicated.
The first control valve is specifically configured as an elastic control valve, and includes a spring connecting piece 19 and a piston 18 which are connected to each other, a valve port 1801 parallel to the direction of the connecting hole B202 is arranged at the lower end of the piston 18, the maximum elongation of the spring connecting piece 19 is smaller than the portion of the connecting hole a201 exceeding the connecting hole B202, and the size of the piston 18 at the upper end of the valve port 1801 is larger than the diameter of the connecting hole B202, so that the piston can play a role of blocking.
When the second control valve is in a disconnected state, the pressure inside the connecting hole a201 is low, the first control valve is located in the aperture of the connecting hole a201, and the valve port 1801 of the first control valve is in a sealed state; when the second control valve is in a communicated state, on one hand, part of the cooling liquid directly cools and lubricates the upper sliding bearing through the first through hole A901 of the bearing bracket, the fifth chamber V, the sixth chamber VI and the second through hole 1401 on the thermostat bracket, so that insufficient cooling liquid entering the cooling circulation pipe and reaching the far end of the motor is caused; on the other hand, the internal pressure of the connecting hole A201 is increased and is transmitted to the piston 18, at the moment, one end of the piston 18 is pushed by the internal pressure in the connecting hole A201 to move towards the end of the spring connecting piece 19 along the pipe wall until the valve port 1801 moves to the intersection point of the connecting hole A201 and the connecting hole B202 to be communicated with the connecting hole B202, the cooling liquid in the fourth cavity IV enters the right cavity of the motor end cover 2 to compensate the cooling liquid, and the influence of insufficient cooling liquid in the main cooling circulation loop on cooling and lubrication of a component at the far end part of the motor cavity is avoided.
It should be noted that, in the normal condition, the cooling circulation branch of the present invention is started under the high-power condition and closed under the low-power condition, but the essence of the mechanism start-up depends on the heat productivity of the pump machine and the temperature of the third chamber is used as the control standard, so that under the low-power condition, there is a possibility that the cooling circulation branch of the present invention is also communicated because of overheating due to long-time operation. The foregoing shows and describes the general principles and broad features of the present invention and 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 described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A cooling circulation loop for a high-power high-speed submersible pump is characterized in that: including being arranged inside the submersible pump
The first chamber
The thrust disc is positioned in an area enclosed by the motor end cover and the bottom of the thrust disc;
second chamber
The thrust disc is positioned in a region enclosed by the motor end cover, the inner wall of the motor, the bearing support and the top of the thrust disc;
third chamber
The thrust plate is positioned in an area surrounded by the bearing support, the sliding bearing gland, the sliding bearing, the thrust disc and the thrust bearing gland;
the fourth chamber
The motor bottom cover and the motor end cover are positioned in an area surrounded by the motor bottom cover and the motor end cover;
still include the cooling circulation branch road, the cooling circulation branch road including set up in first through-hole A and first through-hole B in the bearing support, set up in connecting hole A and connecting hole B in the motor end cover, the cooling circulation branch roadThe two ends of the first through hole A are communicated with the second chamber
And said third chamber
Two ends of the first through hole B are respectively connected with the third chamber
Is communicated with the connecting hole A; the two ends of the connecting hole B are communicated with the first cavity
And the fourth chamber
The connecting hole B is also vertically intersected with the connecting hole A, a first control valve for controlling the connection and disconnection of the connecting hole A and the connecting hole B is arranged at the intersection point of the connecting hole B and the connecting hole A, and the third chamber
The first through hole A and the third chamber are controlled to be arranged in the chamber
And the second control valve is switched on and off.
2. The cooling circulation loop for the high power high speed submersible pump according to claim 1, wherein: the second control valve is a temperature control valve, and the opening degree of the valve is adjusted according to the environment to connect or disconnect the cooling circulation branch.
3. The cooling circulation loop for the high power high speed submersible pump according to claim 2, wherein: the temperature control valve is arrangedPut the liquid outlet port department of first through-hole A, including thermostat, thermostat fixed bolster, the thermostat fixed bolster is fixed on the bearing support to and set up the valve gap inside the thermostat fixed bolster, will the inside partition of thermostat fixed bolster is the fifth cavity room
And a sixth chamber
The fifth chamber
Through the first through hole A and the second chamber
Communicate, the sixth chamber
And the third chamber
Communicating; the inner wall of the middle position in the thermostat fixing support is provided with a sealing end face matched with the outer edge of the valve cover, the lower end of the valve cover is connected with a valve rod of the thermostat, the valve rod extends along with the rise of temperature to adjust the degree of contact between the valve cover and the thermostat fixing support, and therefore the fifth chamber is adjusted
And the sixth chamber
On or off the second chamber
And a third chamber
To be connected.
4. The cooling circulation loop for the high power high speed submersible pump according to claim 3, wherein: the valve cover comprises a valve cover A and a valve cover B, the valve cover A is located in the middle of the thermostat fixing support, the valve cover B is located in the outer ring of the thermostat fixing support, the outer edge of the valve cover B is fixedly connected with the inner wall of the middle of the thermostat fixing support, and sealing end faces matched with each other are arranged on the inner wall of the thermostat fixing support.
5. The cooling circulation loop for the high power high speed submersible pump according to claim 1, wherein: the liquid inlet end of the connecting hole A is connected with the liquid outlet end of the first through hole B through a connecting pipe, and the first control valve is arranged at the other end of the connecting hole A.
6. The cooling circulation loop for the high power high speed submersible pump according to claim 2, wherein: the first control valve is an elastic control valve and is provided with a valve port parallel to the direction of the connecting hole B;
when the second control valve is in a disconnected state, the pressure of the connecting hole A is low, the upward pressure of the connecting hole A acting on the bottom end of the first control valve is smaller than the spring force borne by the upper end of the first control valve, the first control valve is positioned in the aperture of the connecting hole A, and the valve port of the first control valve is in a sealed state;
when the second control valve is in a communication state, the pressure of the connecting hole A is increased, the first control valve is pushed to move towards the other end of the connecting hole A until the valve port of the first control valve moves to the intersection point of the connecting hole A and the connecting hole B, and the connecting hole B is communicated.
7. The cooling circulation loop for the high power high speed submersible pump according to claim 6, wherein: the first control valve comprises a spring connecting piece and a piston which are connected with each other, the valve port is arranged at the lower end of the piston, the maximum elongation of the spring connecting piece is smaller than the part of the connecting hole A exceeding the connecting hole B, the size of the piston, which is positioned at the upper end of the valve port, is larger than the diameter of the connecting hole B, and the piston is attached to the inner wall of the connecting hole A.
8. The cooling circulation loop for the high power high speed submersible pump according to claim 1, wherein: the radial direction of the thrust disc is provided with a first cavity communicated with the thrust disc
And the second chamber
The axial direction of the radial hole is communicated with the third chamber
The axial bore of (a).
9. The cooling circulation loop for the high power high speed submersible pump according to claim 1, wherein: the second chamber
The upper part of the cooling tower is also connected with a cooling liquid circulating pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168430.4A CN112928866B (en) | 2021-02-07 | 2021-02-07 | Cooling circulation loop for high-power high-speed submersible pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168430.4A CN112928866B (en) | 2021-02-07 | 2021-02-07 | Cooling circulation loop for high-power high-speed submersible pump |
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| Publication Number | Publication Date |
|---|---|
| CN112928866A CN112928866A (en) | 2021-06-08 |
| CN112928866B true CN112928866B (en) | 2021-11-05 |
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| CN202110168430.4A Active CN112928866B (en) | 2021-02-07 | 2021-02-07 | Cooling circulation loop for high-power high-speed submersible pump |
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| CN113489217B (en) * | 2021-06-28 | 2022-09-20 | 南京工程学院 | Self-triggering type cooling branch arranged in wet motor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5118466A (en) * | 1990-03-12 | 1992-06-02 | Westinghouse Electric Corp. | Nuclear reactor coolant pump with internal self-cooling arrangement |
| JPH09103049A (en) * | 1995-10-05 | 1997-04-15 | Mitsubishi Electric Corp | Canned motor |
| CN201461454U (en) * | 2009-07-17 | 2010-05-12 | 上海汇业机械科技有限公司 | Electric pump with water circulating cooling motor |
| CN201650760U (en) * | 2010-01-29 | 2010-11-24 | 大连海密梯克泵业有限公司 | Shield pump for heat transfer oil |
| CN102913487A (en) * | 2012-09-04 | 2013-02-06 | 上海凯泉泵业（集团）有限公司 | Motor cooling structure of immersed pump |
| CN111980954A (en) * | 2020-08-26 | 2020-11-24 | 南京工程学院 | Protection mechanism arranged at mechanical seal of mining high-speed emergency pump |
| CN112128118A (en) * | 2020-10-25 | 2020-12-25 | 薛峰 | Sewage sewage submersible electric pump adopting anti-freezing cooling liquid for heat dissipation and cooling |
-
2021
- 2021-02-07 CN CN202110168430.4A patent/CN112928866B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5118466A (en) * | 1990-03-12 | 1992-06-02 | Westinghouse Electric Corp. | Nuclear reactor coolant pump with internal self-cooling arrangement |
| JPH09103049A (en) * | 1995-10-05 | 1997-04-15 | Mitsubishi Electric Corp | Canned motor |
| CN201461454U (en) * | 2009-07-17 | 2010-05-12 | 上海汇业机械科技有限公司 | Electric pump with water circulating cooling motor |
| CN201650760U (en) * | 2010-01-29 | 2010-11-24 | 大连海密梯克泵业有限公司 | Shield pump for heat transfer oil |
| CN102913487A (en) * | 2012-09-04 | 2013-02-06 | 上海凯泉泵业（集团）有限公司 | Motor cooling structure of immersed pump |
| CN111980954A (en) * | 2020-08-26 | 2020-11-24 | 南京工程学院 | Protection mechanism arranged at mechanical seal of mining high-speed emergency pump |
| CN112128118A (en) * | 2020-10-25 | 2020-12-25 | 薛峰 | Sewage sewage submersible electric pump adopting anti-freezing cooling liquid for heat dissipation and cooling |
Non-Patent Citations (1)
| Title |
|---|
| 一种新型矿用高速抢险泵冷却循环回路的设计方法;柏宇星，孔繁余，汪家琼，邱宁;《煤炭学报》;20191231;第44卷;第717-723页 * |
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Application publication date: 20210608 Assignee: Nanjing Duozi Control Technology Co.,Ltd. Assignor: NANJING INSTITUTE OF TECHNOLOGY Contract record no.: X2024980001818 Denomination of invention: A cooling cycle circuit for high-power and high-speed submersible pumps Granted publication date: 20211105 License type: Common License Record date: 20240204 |