CN111963450A - Intelligent automatic cooling submersible pump - Google Patents
Intelligent automatic cooling submersible pump Download PDFInfo
- Publication number
- CN111963450A CN111963450A CN202010875568.3A CN202010875568A CN111963450A CN 111963450 A CN111963450 A CN 111963450A CN 202010875568 A CN202010875568 A CN 202010875568A CN 111963450 A CN111963450 A CN 111963450A
- Authority
- CN
- China
- Prior art keywords
- shell
- water inlet
- pump
- main shaft
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 163
- 239000000411 inducer Substances 0.000 claims description 62
- 239000004576 sand Substances 0.000 claims description 33
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 13
- 230000001965 increasing effect Effects 0.000 description 16
- 238000007599 discharging Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an intelligent automatic cooling submersible pump, which comprises a motor assembly, a pump head assembly and a water inlet shell, wherein the pump head assembly is arranged at the bottom of the motor assembly; the motor assembly comprises a motor shell and a main shaft, the main shaft extends out of the motor shell downwards and is connected to the pump head assembly, the water inlet shell is installed on the outer side of the motor shell, the pump head assembly comprises an impeller and a pump shell, the impeller is located inside the pump shell and is installed through a main shaft vertical cantilever, a port at the upper end of the pump shell is an inflow port, the impeller inflow port faces upwards, and the upper end face of the pump shell is connected with the water inlet shell. The upper water inlet shell sequentially comprises an inflow section, a choke section, an expansion section and a rectification section from top to bottom, the upper end of the inflow section is opened to serve as a water inlet of the whole submersible pump, and the lower end of the rectification section is connected with the second water inlet shell. The bubble generation and collapse area is actively built on the water inlet channel of the submersible pump, the convection heat exchange effect is greatly enhanced by the strong disturbance of water flow, and the temperature of the submersible pump is effectively controlled.
Description
Technical Field
The invention relates to the technical field of submersible pumps, in particular to an intelligent automatic cooling submersible pump.
Background
The submersible pumps are widely applied to water treatment and regional short-range water body gathering and conveying occasions.
The immersible pump needs the motor energy supply, can give off more heat during the motor operation, though thought under the common meaning, the immersible pump is arranged in the aquatic, the heat that gives off can be walked by the water and need not consider the motor heat dissipation problem, however, under some specific scene, the generating heat of motor still can exert an influence to the motor, for example, the medium of pumping is the medium of higher temperature, traditional immersible pump is gone into the mouth and is set up in the pump head bottom and inhale and flow, the motor surface only with the static contact of surrounding water, form nearly wall high temperature layer very easily, when the motor generates heat seriously, can not take away more heat, influence performance. If the heat generation of the motor cannot be effectively handled, although a short-time failure may not occur, the long-term operation may affect the life of the motor, and the life of the entire pump may be reduced.
Disclosure of Invention
The invention aims to provide an intelligent automatic cooling submersible pump to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: an intelligent automatic cooling submersible pump.
An intelligent automatic cooling submersible pump comprises a motor assembly, a pump head assembly and a water inlet shell, wherein the pump head assembly is installed at the bottom of the motor assembly, the water inlet shell is installed on the outer side of the motor assembly, and water is guided to the pump head assembly by the water inlet shell through the tail part of a motor; the motor assembly comprises a motor shell and a main shaft, the main shaft extends out of the motor shell downwards and is connected to the pump head assembly, the water inlet shell is installed on the outer side of the motor shell, the pump head assembly comprises an impeller and a pump shell, the impeller is located inside the pump shell and is installed through a main shaft vertical cantilever, a port at the upper end of the pump shell is an inflow port, the impeller inflow port faces upwards, and the upper end face of the pump shell is connected with the water inlet shell.
The rivers are from the shell inflow of intaking, and inflow flow is whole to flow through from motor casing wall, is favorable to taking away the heat on motor surface, and impeller inflow mouth is just the axial force balance up still has one benefit, when the impeller operation, because the axial force that impeller and water effort produced is towards the impeller sunction inlet, so, this application impeller sunction inlet is up, can let the axial force that the water flow produced balance with the holistic gravity of rotor part, reduces the load of rotor part bearing position department. The pump case outflowing port is butted with the water outlet pipe, the bottom mounting base supports the pump case outflowing port, and the top surface of the base or the motor component is used as an external connecting position, such as the common coupling type mounting convenient for adjusting the mounting depth of the submersible pump. The main shaft can be provided with a plurality of shaft sleeves for adjusting the axial size and facilitating the installation size of the rotor part, and the shaft sleeves and the main shaft have the same significance in the subsequent discussion.
Furthermore, the water inlet shell is divided into a first water inlet shell and a second water inlet shell, the first water inlet shell and the second water inlet shell are both of a revolving body structure, the lower end face of the center of the second water inlet shell is connected with the pump shell, the upper end face of the second water inlet shell is connected with the first water inlet shell, and the first water inlet shell is connected with the motor shell to support the motor assembly; the first water inlet shell sequentially comprises an inflow section, a choke section, an expansion section and a rectification section from top to bottom, the upper end of the inflow section is opened as a water inlet of the whole submersible pump, and the lower end of the rectification section is connected with the second water inlet shell.
The shape of the first water inlet shell changes the flowing state of the inflow water body in sections, the water body flows in from the inflow section, the flow velocity of the water body is obviously increased at the choke section, the related principle of fluid mechanics is known, the water body pressure at the position is reduced, when the water body pressure is reduced to the saturated vapor pressure at the temperature, bubbles can be separated out, which is also the reason of cavitation of the pump impeller, however, in the application, the bubble clusters generated at the choke section flow backwards, the flow velocity is gradually reduced at the expansion section, the pressure is increased and then the bubbles are collapsed, the bubbles are collapsed and obviously disturb the surrounding water body, so that the convection heat transfer coefficient of the water flow flowing along the surface of the motor shell is greatly improved, the cooling effect of the water flow on the motor shell is further improved, it should be noted that when the submersible pump is placed at a deep bottom of a well, the surrounding water pressure is high, and the liquid can not be reduced to the saturated vapor pressure at the temperature when flowing, therefore, if the submersible pump of the present application is to exert the function of enhancing the heat dissipation effect of the bubbles, the submersible pump needs to be installed at a position not deep below the water surface by a certain means, specifically, the submersible pump can be installed in a coupling manner and the installation depth can be adjusted along with the water level in the well.
As an optimization, in the first water inlet shell, a rounded-off wave shape is used instead of the expansion segment. The wavy pipe section can enable the water body to continuously reduce the pressure and generate bubbles and raise the pressure to destroy the bubbles outside the motor shell, and the continuous generation and destruction of the bubbles disturb the water body to enhance the convection heat transfer coefficient.
The submersible pump is further provided with an inducer assembly, the second water inlet shell is provided with an annular flow dividing structure, the upper end of the second water inlet shell is radially outwards provided with a sand discharge channel, the central area of the upper end of the second water inlet shell is an inflow channel, the lower end of the sand discharge channel leads to the water body around the submersible pump, the inflow channel leads to an inflow port in the upper end of a pump shell, the inducer assembly is arranged on the main shaft, the inducer assembly is located in the first water inlet shell at the height position, and the inducer assembly leads the rotational flow of the inflow water to the second water inlet shell. The inducer component is a component which is commonly used in a pump and improves the suction condition of a pump impeller, has good cavitation performance, but is replaced by sacrificing work-doing effect, so the core work-doing component of the pump is still an impeller in a pump shell.
Furthermore, an inclined water inlet filter screen is arranged at the inlet of the inflow section. The water inlet filter screen filters out large impurities and gravels.
Furthermore, the tail end of the sand discharge channel is provided with a one-way valve. The one-way valve structure only allows the second water inlet shell to discharge materials outwards, prevents the sand discharge channel from becoming a water inlet flow channel, and the discharge of the one-way valve from top to bottom should have certain opening force, and this part of opening force should be the same under the optimized condition: when the sand discharging channel accumulates less sand grains, the sand discharging channel pushes the one-way membrane valve open by self gravity to complete sand discharging when the accumulated sand is more and the average density of the substances in the range of the sand discharging channel is obviously higher than that of water.
Further, the inducer subassembly includes mounting panel and inducer blade, and the mounting panel passes through the bearing and installs on the main shaft, and the radial outside of mounting panel sets up the inducer blade, realizes the rotational speed difference through friction formula transmission or friction structure between mounting panel and the main shaft. The inducer blade does not need to operate at the rotating speed of the main shaft, but the inducer assembly can consume a large amount of main shaft power, the inducer effect is not high, when the cavitation performance of the impeller is met, the operating speed of the inducer does not need to be increased, rigid transmission such as key transmission is not directly arranged between the mounting plate and the main shaft, torque is transmitted in a friction type mode, when the rotating speed of the main shaft is high, because surrounding water bodies have rotating resistance to the inducer blade when the inducer blade rotates, if the torque transmitted by friction transmission is smaller than the rotating resistance, the inducer blade cannot rotate at full speed and can only rotate at the speed lower than the rotating speed of the main shaft, and differential operation is achieved.
In the aspect of improving the impeller cavitation of the inducer assembly, the inducer does not need to have a larger rotating speed to meet the use requirement, but sometimes the rotating speed of the inducer needs to be increased from the aspect of water flow, that is, more power is used on the inducer to reduce the power obtained on the impeller, the situation is mainly allocated under the occasions of higher ambient water temperature and more serious motor heating, under the scene, the cooling effect of the motor needs to be further improved, therefore, the pump head assembly only processes the conventional flow and the inducer increases the operating speed to enable more water to enter the inflow section, the excessive water is discharged from the sand discharge channel only by overcoming the shorter on-way resistance and only needing to provide the smaller power by the inducer to realize the flow, the extra flow is also used for cooling the motor casing, and the main idea is that the power provided by the motor is slightly increased by a part of the reactive power (because the part of the power is not used for pumping water to be discharged from the water outlet pipe to the subsequent part), and the slightly increased reactive power is used for cooling the motor casing by pumping the water around the submersible pump.
Furthermore, the inducer component also comprises a revolution gear, a main shaft gear, a positioning nut, a spring and a friction ring, wherein the lower surface of the mounting plate extends downwards out of the guide post, the lower surface of the mounting plate is also provided with a rotation stopping hole, the revolution gear is sleeved on the guide post, the spring and the friction ring are arranged between the revolution gear and the lower surface of the mounting plate, the lower surface of the friction ring is abutted against the upper surface of the revolution gear by the spring, and the upper surface of the friction ring also extends upwards out of at least two thin rods to be inserted into the rotation stopping; the main shaft gear is arranged on the main shaft in a transmission way, one end of the main shaft gear is tightly propped against the shaft shoulder of the main shaft through a spring, and the other end of the main shaft gear is axially limited through a positioning nut; the main shaft gear and the revolution gear are bevel gears and are in meshed connection, the conical tip of the main shaft gear faces upwards, and the conical tip of the revolution gear faces downwards. The structure is a specific structural form of friction differential transmission, friction occurs on a contact surface of a revolution gear and a friction ring, a mounting plate, an inducer blade and the friction ring have common rotating speed, a main shaft gear has the same rotating speed as a main shaft, the revolution gear has revolution rotating speed and rotation rotating speed, when the friction force between the friction ring and the upper surface of the revolution gear is large, the revolution speed of the revolution gear is close to the rotation speed of the spindle, the rotation speed is reduced and tends to zero, the revolution speed of the revolution gear is the rotation speed of the mounting plate and the inducer blade, the differential degree is adjusted by adjusting the loosening and positioning nut to enable the spindle gear to move downwards at a certain position, the revolution gear is extruded by the spring to move downwards at a certain height, the resisting force of the lower surface of the friction ring on the upper surface of the revolution gear is not so large, the rotation is smoother, and the rotation speed on the spindle is less transmitted to the inducer blade.
Furthermore, a radial blade is arranged on the end face of one side of the mounting plate, which faces upwards. The mounting plate is a rotating part, and the lower end face of the motor shell is static, so a certain gap exists between the mounting plate and the motor shell, and the radial blades rotate to prevent some sand grains in water from entering the position near the main shaft at the height.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, by utilizing a cavitation principle, a bubble generation and collapse area is actively created on the water inlet channel of the submersible pump, the area is superposed with the motor shell, the convection heat exchange effect is greatly enhanced by strong disturbance of water flow, and the temperature of the submersible pump is effectively controlled; the inducer assembly improves the cavitation performance of the impeller, simultaneously has the functions of separating sand grains by cyclone and introducing additional cooling flow, and the inducer blades realize the differential operation with the main shaft in a friction transmission mode.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the motor assembly, first inlet housing portion of the present invention;
FIG. 3 is a schematic view of the inducer assembly and surrounding components of the present invention;
FIG. 4 is a partial view A of FIG. 3;
FIG. 5 is a schematic structural view of the pump head assembly, second inlet housing portion of the present invention;
fig. 6 is a schematic flow diagram of the present invention.
In the figure: 1-motor component, 11-motor shell, 12-main shaft, 13-shaft sleeve, 2-pump head component, 21-impeller, 22-pump shell, 31-first water inlet shell, 311-inflow section, 312-choke section, 313-expansion section, 314-rectification section, 32-second water inlet shell, 321-sand discharge channel, 322-inflow channel, 33-water inlet filter screen, 34-one-way membrane valve, 4-inducer component, 41-mounting plate, 411-guide column, 412-rotation stopping hole, 419-radial blade, 42-inducer blade, 43-revolution gear, 44-main shaft gear, 45-positioning nut, 46-spring, 47-friction ring, 5-water outlet pipe and 6-base.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, an intelligent automatic cooling submersible pump comprises a motor assembly 1, a pump head assembly 2 and a water inlet shell, wherein the pump head assembly 2 is installed at the bottom of the motor assembly 1, the water inlet shell is installed at the outer side of the motor assembly 1, and water is guided by the water inlet shell from the tail part of a motor and led to the pump head assembly; the motor assembly comprises a motor shell 11 and a main shaft 12, the main shaft 12 extends out of the motor shell 11 downwards and is connected to a pump head assembly 2, the water inlet shell is installed on the outer side of the motor shell 11, the pump head assembly 2 comprises an impeller 21 and a pump shell 22, the impeller 21 is located inside the pump shell 22 and is installed through a main shaft 12 vertical cantilever, an inlet is formed in an upper end port of the pump shell 22, the inlet of the impeller 21 faces upwards, and the upper end face of the pump shell 22 is connected with the water inlet shell. The rivers are from the shell inflow of intaking, the inflow flow is whole to flow through from motor shell 11 walls, be favorable to taking away the heat on motor surface, impeller 21 inflow mouth still has one benefit up and is exactly that the axial force is balanced, when the impeller moves, because the axial force that impeller and water effort produced is towards the impeller sunction inlet, so, this application impeller 21 sunction inlet is up, can let the axial force that the water flow produced balance with the holistic gravity of rotor part, reduce the load of rotor part bearing position department. The outlet of the pump shell 22 is abutted with the water outlet pipe 5, the bottom mounting base 6 supports the base 6 or the top surface of the motor component 1 as an external connection position, for example, a coupling type mounting which is commonly used for submersible pumps and is convenient for adjusting the mounting depth. A plurality of bushings 13 may be provided on the spindle 12 to accommodate axial dimensions and mounting dimensions for ease of machining rotor components, and the bushings 13 may be synonymous with the spindle 12 in the following discussion.
The water inlet shell is divided into a first water inlet shell 31 and a second water inlet shell 32, the first water inlet shell 31 and the second water inlet shell 32 are both of a revolving body structure, the lower end face of the center of the second water inlet shell 32 is connected with the pump shell 22, the upper end face of the second water inlet shell 32 is connected with the first water inlet shell 31, and the first water inlet shell 31 is connected with the motor shell 11 to support the motor component 1;
the first water inlet shell 31 sequentially comprises an inflow section 311, a choke section 312, an expansion section 313 and a rectification section 314 from top to bottom, the upper end of the inflow section 311 is opened to be used as a water inlet of the whole submersible pump, and the lower end of the rectification section 314 is connected with the second water inlet shell 32. The shape of the first water inlet housing 31 changes the flowing state of the inflow water body in sections, the water body flows in from the inflow section 311, the flow velocity of the water body at the choke section 312 is significantly increased, and it can be known from the related principle of fluid mechanics that when the water body pressure at this position is reduced, bubbles will be separated out when the water body pressure is reduced to the saturated vapor pressure at this temperature, which is also the reason for cavitation of the pump impeller, however, in this application, the bubble clusters generated at the choke section 312 follow the backward flow, the flow velocity is gradually reduced at the expansion section 313, the pressure is increased and then the bubbles are collapsed, the bubble collapse significantly disturbs the surrounding water body, so that the convection heat transfer coefficient of the water flow flowing along the surface of the motor housing 11 is greatly increased, thereby further increasing the cooling effect of the motor housing 11 by the water flow, it should be noted that when the submersible pump is placed at a deep bottom, the surrounding water pressure is high, and the liquid may not be reduced to the saturation at this temperature by the vapor, therefore, if the submersible pump of the present application is to exert the function of enhancing the heat dissipation effect of the bubbles, the submersible pump needs to be installed at a position not deep below the water surface by a certain means, specifically, the submersible pump can be installed in a coupling manner and the installation depth can be adjusted along with the water level in the well.
In the first water inlet shell 31, a rounded transitional wave shape is used instead of the expansion section 313. The wave-shaped pipe section can enable the water body to continuously reduce the pressure and generate bubbles and raise the pressure to destroy the bubbles outside the motor shell 11, and the continuous generation and destruction of the bubbles disturb the water body to enhance the convection heat transfer coefficient.
The submersible pump is further provided with an inducer assembly 4, the second water inlet shell 32 is provided with an annular flow dividing structure, a sand discharge channel 321 is arranged on the radial outer side of the upper end of the second water inlet shell 32, an inflow channel 322 is arranged in the central area of the upper end of the second water inlet shell 32, the lower end of the sand discharge channel 321 leads to the surrounding water body of the submersible pump, the inflow channel 322 leads to an inflow port at the upper end of the pump shell 22, the inducer assembly 4 is arranged on the main shaft 12, the inducer assembly 4 is located in the first water inlet shell 31 in the height position, and the inducer assembly 4 carries out swirl pressurization on the inflow water flow to lead to the second water inlet shell 32. The inducer component 4 is a component which is commonly used in the pump and improves the suction condition of a pump impeller, although the inducer has good cavitation performance, the action effect is sacrificed, so the core action component of the pump is still the impeller 21 in the pump shell 22, in the application, the inducer component 4 is not only a component which increases the pressure and improves the cavitation performance of the whole machine, but also a component which rotates the water body in the water inlet shell, separates sand and dust particle impurities in the water by the centrifugal action of the rotating water body, and enables the particles to be accumulated in the sand discharge channel 321 and be discharged out of the device at the tail end of the sand discharge channel 321.
An inclined inlet screen 33 is provided at the inlet of the inflow section 311. The water inlet filter screen 33 filters out large impurities and sand.
The one-way valve 34 is arranged at the tail end of the sand discharge channel 321. The structure of the one-way valve 34 only allows the second water inlet shell 32 to discharge materials outwards, and prevents the sand discharge passage 321 from becoming a water inlet flow passage, and the discharge of the one-way valve 34 from top to bottom should have a certain opening force, and this opening force should be the same under the optimized condition: when the sand discharging passage 321 accumulates less sand grains, the sand discharging passage 321 pushes the one-way valve 34 open by self gravity to complete sand discharging when the accumulated sand is more and the average density of the substances in the range of the sand discharging passage 321 is obviously higher than that of water.
The inducer assembly 4 comprises a mounting plate 41 and inducer blades 42, the mounting plate 41 is mounted on the main shaft 12 through a bearing, the inducer blades 42 are arranged on the radial outer side of the mounting plate 41, and the difference of the rotating speed between the mounting plate 41 and the main shaft 12 is realized through a friction type transmission or friction structure. The inducer blades 42 do not need to operate at the rotating speed of the main shaft 12, otherwise the inducer assembly 4 consumes a large amount of power of the main shaft 12, as already discussed above, the inducer has a low effect, and when the cavitation performance of the impeller is satisfied, the operating speed of the inducer does not need to be increased.
In terms of improving the cavitation of the impeller 22 by the inducer assembly, the inducer does not need to have a larger rotating speed to meet the use requirement, but sometimes needs to be increased in rotating speed from the perspective of water flow, that is, more power is used on the inducer to reduce the power obtained on the impeller 22, the situation is mainly allocated under the occasions that the ambient water temperature is higher and the motor generates heat seriously, in such a scene, the cooling effect of the motor needs to be further improved, therefore, considering that the water flow of the water inlet shell is increased without increasing the water flow of the impeller 22, the pump head assembly 2 only processes the conventional flow, the inducer increases the operating speed, more water flows enter the inflow section 311, the excessive water flows are discharged from the sand discharge channel 321, the excessive water flows only need to overcome the shorter on-way resistance, and the flow can be realized only by the inducer providing the smaller power, this extra flow is also used to cool the motor housing 11, the main idea being that the power supplied by the motor is slightly increased by a portion of the reactive power (since this portion of the power is not used to pump water from the outlet pipe 5 to the subsequent one), and the slightly increased reactive power is used to pump the body of water around the submersible pump to cool the motor housing 11. The differential operation proportion of inducer subassembly 4 and main shaft 12 constitutes motor casing 11 cooling flow distribution, and the inside generating heat of motor detects through certain means then the moment of control friction transmission can realize automatic regulation effect, and the technical personnel in the art can carry out secondary development on this application basis and reach various intelligent allotment modes along with service environment changes.
The inducer assembly 4 further comprises a revolution gear 43, a main shaft gear 44, a positioning nut 45, a spring 46 and a friction ring 47,
the lower surface of the mounting plate 41 extends out of the guide post 411 downwards, the lower surface of the mounting plate 41 is also provided with a rotation stopping hole 412, the revolution gear 43 is sleeved on the guide post 411, a spring 46 and a friction ring 47 are arranged between the revolution gear 43 and the lower surface of the mounting plate 41, the spring 46 tightly supports the lower surface of the friction ring 47 on the upper surface of the revolution gear 43, and the upper surface of the friction ring 47 also extends out of at least two thin rods upwards and is inserted into the rotation stopping hole 412;
a main shaft gear 44 is arranged on the main shaft 12 in a transmission way, one end of the main shaft gear 44 is tightly propped against the shaft shoulder of the main shaft 12 through a spring 46, and the other end of the main shaft gear is axially limited through a positioning nut 45;
the main shaft gear 44 and the revolving gear 43 are bevel gears and are meshed with each other, the conical tip of the main shaft gear 44 faces upward, and the conical tip of the revolving gear 43 faces downward.
The structure is a specific friction differential transmission structure, friction occurs on the contact surface of a revolution gear 43 and a friction ring 47, a mounting plate 41, an inducer blade 42 and the friction ring 47 have common rotating speed, a main shaft gear 44 has the same rotating speed as a main shaft 12, the revolution gear 43 has revolution rotating speed and rotation rotating speed, when the friction force between the friction ring 47 and the upper surface of the revolution gear 43 is large, the revolution rotating speed of the revolution gear 43 is close to the rotating speed of the main shaft 12, the rotation rotating speed is reduced to zero, the revolution rotating speed of the revolution gear 43 is the rotating speed of the mounting plate 41 and the inducer blade 42, the differential degree is adjusted by adjusting a loose positioning nut 45 to enable the main shaft gear 44 to move downwards at a certain position, the revolution gear 43 is also moved downwards at a certain height under the extrusion of a spring 46, the abutting force of the lower surface of the friction ring 47 on the upper surface of the revolution gear 43 is not so, the rotational speed on the main shaft 12 is less transmitted to the inducer blade 42.
The end face of the mounting plate 41 facing upwards is provided with a radial blade 419. The mounting plate 41 is a rotating part, and the lower end surface of the motor casing 11 is stationary, so that a certain gap exists between the mounting plate 41 and the motor casing 11, and the radial blades 419 rotate to prevent some sand particles in water from entering the vicinity of the main shaft 12 at the height.
The main operation process of the invention is as follows: the water flow is sucked into the water inlet shell from the water inlet section 311, descends along the outer wall of the motor shell 11 in a clinging mode, enters the impeller 22 below the center of the second water inlet shell 32 at the bottom, is pumped and is discharged out of the device through the water outlet pipe 5.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an intelligent automatic cooling immersible pump which characterized in that: the submersible pump comprises a motor assembly (1), a pump head assembly (2) and a water inlet shell, wherein the pump head assembly (2) is installed at the bottom of the motor assembly (1), the water inlet shell is installed on the outer side of the motor assembly (1), and water is guided by the water inlet shell from the tail of a motor and led to the pump head assembly; motor element includes motor casing (11), main shaft (12) stretch out motor casing (11) downwards and are connected to pump head subassembly (2), the water shell is installed into in motor casing (11) outside, pump head subassembly (2) are including impeller (21) and pump case (22), impeller (21) are located inside and by the vertical cantilever installation of main shaft (12) of pump case (22), pump case (22) upper end port is the influent stream mouth, impeller (21) influent stream mouth up, pump case (22) up end and the water shell of intaking are connected.
2. The intelligent automatic cooling submersible pump of claim 1, wherein: the water inlet shell is divided into a first water inlet shell (31) and a second water inlet shell (32), the first water inlet shell (31) and the second water inlet shell (32) are both of a rotary body structure, the lower end face of the center of the second water inlet shell (32) is connected with the pump shell (22), the upper end face of the second water inlet shell (32) is connected with the first water inlet shell (31), and the first water inlet shell (31) is connected with the motor shell (11) to support the motor assembly (1);
the first water inlet shell (31) sequentially comprises an inflow section (311), a choke section (312), an expansion section (313) and a rectification section (314) from top to bottom, the upper end of the inflow section (311) is opened to serve as a water inlet of the whole submersible pump, and the lower end of the rectification section (314) is connected with the second water inlet shell (32).
3. The intelligent automatic cooling submersible pump of claim 2, wherein: in the first water inlet shell (31), a wave shape with smooth transition is used instead of the expanding section (313).
4. The intelligent automatic cooling submersible pump of claim 2, wherein: the immersible pump is inducer subassembly (4) in addition, shell (32) are advanced to the second has annular reposition of redundant personnel structure, and the radial outside in shell (32) upper end is advanced to the second sets up sand discharge passage (321), and shell (32) upper end central area is inlet channel (322) are advanced to the second, sand discharge passage (321) lower extreme leads to around the immersible pump water body, inlet channel (322) direction pump case (22) upper end inlet port, inducer subassembly (4) set up on main shaft (12), and in the high position, inducer subassembly (4) are located first shell (31) of advancing, and inducer subassembly (4) will advance the rivers whirl pressure boost and lead to shell (32) of advancing to the second.
5. The intelligent automatic cooling submersible pump of claim 2, wherein: an inclined water inlet filter screen (33) is arranged at the inlet of the inflow section (311).
6. The intelligent automatic cooling submersible pump of claim 4, wherein: the tail end of the sand discharge channel (321) is provided with a one-way valve (34).
7. The intelligent automatic cooling submersible pump of claim 4, wherein: the inducer subassembly (4) includes mounting panel (41) and inducer blade (42), mounting panel (41) are installed on main shaft (12) through the bearing, mounting panel (41) radial outside sets up inducer blade (42), realize the rotational speed difference through friction formula transmission or friction structure between mounting panel (41) and main shaft (12).
8. The intelligent automatic cooling submersible pump of claim 7, wherein: the inducer component (4) also comprises a revolution gear (43), a main shaft gear (44), a positioning nut (45), a spring (46) and a friction ring (47),
the lower surface of the mounting plate (41) extends out of the guide post (411) downwards, the lower surface of the mounting plate (41) is further provided with a rotation stopping hole (412), the revolution gear (43) is sleeved on the guide post (411), a spring (46) and a friction ring (47) are arranged between the revolution gear (43) and the lower surface of the mounting plate (41), the spring (46) enables the lower surface of the friction ring (47) to be tightly abutted against the upper surface of the revolution gear (43), and the upper surface of the friction ring (47) further extends out of at least two thin rods upwards to be inserted into the rotation stopping hole (412);
the main shaft gear (44) is mounted on the main shaft (12) in a transmission manner, one end of the main shaft gear (44) abuts against a shaft shoulder of the main shaft (12) through a spring (46), and the other end of the main shaft gear is axially limited through a position adjusting nut (45);
the main shaft gear (44) and the revolution gear (43) are bevel gears and are in meshed connection, the conical tip of the main shaft gear (44) faces upwards, and the conical tip of the revolution gear (43) faces downwards.
9. The intelligent automatic cooling submersible pump of claim 4, wherein: and a radial blade (419) is arranged on the end face of one side of the mounting plate (41) which faces upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010875568.3A CN111963450B (en) | 2020-08-27 | 2020-08-27 | Intelligent automatic cooling submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010875568.3A CN111963450B (en) | 2020-08-27 | 2020-08-27 | Intelligent automatic cooling submersible pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111963450A true CN111963450A (en) | 2020-11-20 |
| CN111963450B CN111963450B (en) | 2021-09-17 |
Family
ID=73390438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010875568.3A Active CN111963450B (en) | 2020-08-27 | 2020-08-27 | Intelligent automatic cooling submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111963450B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236578A (en) * | 2021-04-29 | 2021-08-10 | 南京工程学院 | Shaft end blade cavitation prevention mechanism capable of automatically extending out |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280791A (en) * | 2008-04-23 | 2008-10-08 | 林钧浩 | Centrifuge synchronous concurrent draught fan impeller |
| CN201486883U (en) * | 2009-08-06 | 2010-05-26 | 浙江大元泵业有限公司 | Submersible air pump |
| US20100135765A1 (en) * | 2007-05-21 | 2010-06-03 | Kevin Edward Burgess | Pumps |
| CN102003396A (en) * | 2010-12-14 | 2011-04-06 | 四川润德机电技术有限公司 | Self-cooling guide vane downdraft type submersible pump |
| CN107781174A (en) * | 2017-10-26 | 2018-03-09 | 合肥凯泉电机电泵有限公司 | A kind of efficient submersible axial flow pump of New-type electric machine underneath type |
| CN108361205A (en) * | 2017-07-17 | 2018-08-03 | 华中科技大学 | A kind of centrifugal pump impeller and the LNG immersed pumps comprising the centrifugal pump impeller |
-
2020
- 2020-08-27 CN CN202010875568.3A patent/CN111963450B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100135765A1 (en) * | 2007-05-21 | 2010-06-03 | Kevin Edward Burgess | Pumps |
| CN104061184A (en) * | 2007-05-21 | 2014-09-24 | 伟尔矿物澳大利亚私人有限公司 | Improvements In And Relating To Pumps |
| CN101280791A (en) * | 2008-04-23 | 2008-10-08 | 林钧浩 | Centrifuge synchronous concurrent draught fan impeller |
| CN201486883U (en) * | 2009-08-06 | 2010-05-26 | 浙江大元泵业有限公司 | Submersible air pump |
| CN102003396A (en) * | 2010-12-14 | 2011-04-06 | 四川润德机电技术有限公司 | Self-cooling guide vane downdraft type submersible pump |
| CN108361205A (en) * | 2017-07-17 | 2018-08-03 | 华中科技大学 | A kind of centrifugal pump impeller and the LNG immersed pumps comprising the centrifugal pump impeller |
| CN107781174A (en) * | 2017-10-26 | 2018-03-09 | 合肥凯泉电机电泵有限公司 | A kind of efficient submersible axial flow pump of New-type electric machine underneath type |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236578A (en) * | 2021-04-29 | 2021-08-10 | 南京工程学院 | Shaft end blade cavitation prevention mechanism capable of automatically extending out |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111963450B (en) | 2021-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111963450B (en) | Intelligent automatic cooling submersible pump | |
| CN101658741A (en) | Reflow backwashing mechanism for automatic filtration of fluid | |
| CN206681996U (en) | One kind filtering stirred type Sand pump | |
| CN109296532A (en) | Blade electronics aspiration pump | |
| CN106246559A (en) | A kind of Double pump body double-suction type canned motor pump | |
| CN2287992Y (en) | Gas axial-flow type rotary packed bed gas-liquid heat transfer mass transfer device | |
| CN108591080A (en) | A kind of efficient invariable power low specific-speed immersible pump of intelligent frequency-conversion speed governing | |
| CN108223403A (en) | A kind of novel magnetically levitated compressor | |
| CN104728124B (en) | Multi-stage centrifugal pump | |
| CN208294784U (en) | Tangent type low specific speed immersible pump | |
| CN214196697U (en) | Vertical and horizontal dual-purpose self-suction amphibious pump | |
| CN213392693U (en) | Multi-stage direct-connection rotary jet pump with adjustable flow | |
| CN108412786A (en) | A kind of composite molecular pump | |
| CN208364401U (en) | Axial force self-balancing vertical centrifugal pump | |
| CN209180011U (en) | Blade electronics aspiration pump | |
| CN206206220U (en) | The multistage pressure centrifugal blower of overall labyrinth seal structure | |
| CN203488256U (en) | Novel self-absorption centrifugal peripheral pump | |
| CN208169156U (en) | A kind of composite molecular pump | |
| CN207621088U (en) | A kind of helico-axial gas fluid mixture pump | |
| CN207989392U (en) | Vertical centrifugal pump | |
| CN112268002A (en) | Multistage segmental mining centrifugal pump | |
| CN104963876A (en) | Efficient and energy-saving three-dimensional-flow multi-stage centrifugal blower | |
| CN2559642Y (en) | Axial-flow aerator | |
| CN2752491Y (en) | Vertical multi-stage centrifugal pump | |
| CN204877985U (en) | Multistage centrifugal blower of energy -efficient three -dimensional flow |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An intelligent automatic cooling submersible pump Effective date of registration: 20231010 Granted publication date: 20210917 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wenling branch Pledgor: Zhejiang Dongyin Technology Co.,Ltd. Registration number: Y2023330002275 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |