CN113048067A - High stability magnetic centrifugal pump suitable for under high temperature high pressure operating mode - Google Patents
High stability magnetic centrifugal pump suitable for under high temperature high pressure operating mode Download PDFInfo
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- CN113048067A CN113048067A CN202110394086.0A CN202110394086A CN113048067A CN 113048067 A CN113048067 A CN 113048067A CN 202110394086 A CN202110394086 A CN 202110394086A CN 113048067 A CN113048067 A CN 113048067A
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- centrifugal pump
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 190
- 238000001816 cooling Methods 0.000 claims description 92
- 239000007788 liquid Substances 0.000 claims description 41
- 238000007667 floating Methods 0.000 claims description 40
- 239000007921 spray Substances 0.000 claims description 15
- 230000017525 heat dissipation Effects 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- 238000001704 evaporation Methods 0.000 description 10
- 230000008020 evaporation Effects 0.000 description 10
- 239000011324 bead Substances 0.000 description 9
- 239000000110 cooling liquid Substances 0.000 description 8
- 239000011229 interlayer Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 239000012634 fragment Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 210000003437 trachea Anatomy 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 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
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
- F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
- F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
-
- 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
- F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
-
- 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
- F04D29/5886—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling by injection
-
- 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
- F04D29/5893—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps heat insulation or conduction
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- 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 belongs to the technical field of centrifugal pumps, and particularly relates to a high-stability magnetic centrifugal pump suitable for a high-temperature and high-pressure working condition; comprises a prime motor and an impeller; the right side surface of the prime motor is fixedly connected with a pump shell; a power cavity is formed in the pump shell; an impeller is rotatably connected inside the power cavity; the right side surface of the pump shell is fixedly connected with a water inlet pipe; the top of the pump shell is provided with a water outlet hole; an adjusting sleeve is fixedly connected inside the water outlet hole; first springs which are uniformly arranged are fixedly connected inside the adjusting sleeve; the inner surface of the pump shell is provided with a backflow hole; the invention effectively realizes the basic operation of the magnetic centrifugal pump, keeps the cyclic utilization of the basic water of the centrifugal pump, avoids the idling of the magnetic centrifugal pump, prolongs the service life of the magnetic centrifugal pump, automatically adjusts the water outlet flow and reduces the water loss under the condition of insufficient water outlet flow.
Description
Technical Field
The invention belongs to the technical field of centrifugal pumps, and particularly relates to a high-stability magnetic centrifugal pump suitable for high-temperature and high-pressure working conditions.
Background
The centrifugal pump is a pump for conveying liquid by means of centrifugal force generated when an impeller rotates, and the magnetic centrifugal pump is a high-tech product for applying the working principle of a permanent magnet coupling to the centrifugal pump, is reasonable in design and advanced in process, and has the characteristics of full sealing, no leakage, corrosion resistance and the like.
According to the CN1928369A magnetic centrifugal pump, the bearing assembly of the magnetic centrifugal pump adopts the silicon carbide material with high bending strength, the bending strength of the bearing assembly can be greatly improved, the shock resistance of the bearing is good, the bearing torque is large, the service life is long, meanwhile, the wear resistance of the bearing assembly can also meet the use requirement, and the use performance and the reliability of the magnetic centrifugal pump are improved.
However, in the prior art, the efficiency of the magnetic centrifugal pump is lower than that of the common centrifugal pump, the magnetic centrifugal pump cannot operate at 30% of the low rated flow, and idling is more forbidden, and meanwhile, when the temperature of a medium conveyed and received by the magnetic centrifugal pump exceeds the specification, cooling needs to be provided from the outside, if a heat insulation cavity is arranged, cooling liquid with pressure higher than sealing pressure is injected into the pump cavity to cool an inner magnetic rotor and a bearing, an isolation sleeve with an interlayer is also adopted, cooling liquid is introduced into the interlayer, or a cooling jacket and a cooling coil pipe and the like are arranged on the pump body, but the structure is complex, the cost is higher, and the like.
In view of the above, the present invention provides a high stability magnetic centrifugal pump suitable for high temperature and high pressure working conditions, which solves the above technical problems.
Disclosure of Invention
In order to solve the problems that in the prior art, the efficiency of a magnetic centrifugal pump is lower than that of a common centrifugal pump, the magnetic centrifugal pump cannot operate at a flow rate which is lower than 30% of a rated flow rate, and idling is more forbidden, and meanwhile, when the temperature of a medium conveyed and connected by the magnetic centrifugal pump exceeds a preset temperature, an external part is required to provide cooling, for example, a heat insulation cavity is arranged, cooling liquid with pressure higher than sealing pressure is injected into a pump cavity to cool an inner magnetic rotor and a bearing, an isolation sleeve with an interlayer is also adopted, cooling liquid is injected into the interlayer, or a pump body is provided with a cooling jacket, a cooling coil pipe and the like, but the structure is complex, the cost is higher and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a high-stability magnetic centrifugal pump suitable for a high-temperature and high-pressure working condition, which comprises a prime motor and an impeller; the right side surface of the prime motor is fixedly connected with a pump shell; a power cavity is formed in the pump shell; the interior of the power cavity is rotatably connected with an impeller, and the impeller is fixedly connected with an output shaft of the prime mover; the right side surface of the pump shell is fixedly connected with a water inlet pipe; the top of the pump shell is provided with a water outlet hole; an adjusting sleeve is fixedly connected inside the water outlet hole; the adjusting sleeve is made of soft elastic material; first springs which are uniformly arranged are fixedly connected inside the adjusting sleeve; the inner surface of the pump shell is provided with a backflow hole, and the backflow hole is communicated with the water inlet pipe; when in work, the centrifugal pump refers to a pump which transfers liquid by the centrifugal force generated when the impeller rotates, and the magnetic centrifugal pump is a high-tech product which applies the working principle of the permanent magnet coupling to the centrifugal pump, and has the characteristics of reasonable design, advanced process, full sealing, no leakage, corrosion resistance and the like, in the prior art, the efficiency of the magnetic centrifugal pump is lower than that of the common centrifugal pump, the magnetic centrifugal pump can not run under the condition of low flow rate and 30 percent of rated flow rate, and is more forbidden to idle, and meanwhile, when the temperature of the transfer medium of the magnetic centrifugal pump exceeds the set temperature, the external part is required to provide cooling, such as a heat insulation cavity is arranged, cooling liquid with pressure higher than the sealing pressure is injected into the pump cavity to cool the inner magnetic rotor and the bearing, an isolation sleeve with an interlayer is also adopted, cooling liquid is injected into the interlayer, or a cooling jacket and a cooling coil pipe are arranged on the pump body, but the problems of complex structure, when the water inlet of the centrifugal pump is insufficient, the water pressure in the pump shell is low, the requirement of the rated flow rate being more than 30% cannot be met, and even idling easily occurs.
Preferably, the inner surface of the water inlet pipe is provided with an adjusting groove; the notch of the adjusting groove is fixedly connected with a heat conducting plate; the inner part of the adjusting groove is fixedly connected with an expansion bag at a position close to the heat conducting plate; the bottom of the expansion bag is fixedly connected with a sliding plate; a second spring is fixedly connected between the sliding plate and the bottom of the adjusting groove; the bottom of the adjusting groove is fixedly connected with a first telescopic rod; a guide groove is formed in the water inlet pipe; a guide plate is connected inside the guide groove in a sliding manner; a second telescopic rod is fixedly connected between the guide plate and the groove bottom of the guide groove, and the second telescopic rod is communicated with the first telescopic rod; a cooling cavity is formed in the water inlet pipe; the cooling cavity is fixedly connected with a cooling pipe, and openings at two ends of the cooling pipe are respectively positioned at two sides of the guide plate; the during operation, through setting up heat-conducting plate and cooling tube, when the inside water temperature of inlet tube is higher, the temperature has exceeded when the specified value, the temperature of water can be passed through the heat-conducting plate and has been transmitted for the inflation bag, make the inside liquid evaporation of inflation bag, and then the inflation bag inflation, the inflation bag can drive the slide and slide, the first telescopic link of slide can be extruded, make the inside gas of first telescopic link enter into the inside of second telescopic link, the second telescopic link can drive the baffle and derive the guide slot, can realize the shutoff to the inlet tube through the baffle, water can be through the leading-in inside to the cooling tube of inlet tube this moment, then water can be through the leading-in inside to the pump case of cooling tube, the flow path of water has been increased by a wide margin through the.
Preferably, the output shaft of the prime mover is fixedly connected with a first gear; a second gear is connected below the first gear in a meshed manner; the middle part of the second gear is fixedly connected with a core column; the surface of the core column is fixedly connected with uniformly arranged fan blades; the side surface of one side in the cooling cavity is fixedly connected with uniformly arranged gas nozzles; the side surface of the other side of the cooling cavity is provided with heat dissipation holes which are uniformly distributed; the during operation, through setting up the jet head, the output post through the prime mover rotates and can drive first gear revolve, and first gear can drive second gear revolve, and the second gear can drive the stem and rotate, can drive the fan blade through the stem and rotate, realizes that gas flows to gas can pass through the jet head blowout, the cooling of water with higher speed.
Preferably, the cooling pipe is transversely connected with uniformly arranged air guide pipes, and two ends of each air guide pipe are respectively close to the air nozzle and the heat dissipation holes; when the cooling device works, the air guide pipe is arranged, and the air guide pipe is connected with the cooling pipe, so that the contact area of water and the outside is increased under the condition that the water flow in the cooling pipe is not influenced, the flowing gas can directly flow into the air guide pipe, and the cooling efficiency of the cooling pipe is improved.
Preferably, the inner part of the air guide pipe is fixedly connected with uniformly arranged water spray heads at the position of the cooling pipe, and the water spray heads are communicated with the inner part of the cooling pipe; during operation, through setting up the sprinkler bead, when the inside of cooling tube flows the water, a small amount of water can spout the inside of guide duct into through the sprinkler bead, and when the inside air current of guide duct flows, through sprinkler bead spun water rapid evaporation, the cooling with higher speed improves the cooling effect.
Preferably, the inner surface of the air guide pipe is provided with uniformly arranged grooves; the bottom of the air guide pipe is fixedly connected with water storage tanks at the positions of the grooves, and the water storage tanks are communicated with the grooves; during operation, through setting up the retaining jar in the bottom of guide duct, when the inside continuous flow water of cooling tube, sprinkler bead spun water is more, and water can accumulate in the inside of guide duct, influences the normal wind-guiding cooling of guide duct, and through the retaining jar, the inside surplus water that accumulates of guide duct can be quick collects and flows into the inside of slot, leads to the inside that corresponds the retaining jar through the slot.
Preferably, the middle part of the water storage tank is fixedly connected with a guide rod; the surface of the guide rod is connected with a sliding block in a sliding manner; the surface of the sliding block is fixedly connected with a floating bag; the side surface of the guide rod is fixedly connected with a pressing plate close to the top of the guide rod; third springs are fixedly connected between the pressing plate and the air guide pipe; the top surfaces of the pressing plates are fixedly connected with first liquid bags; during operation, through setting up guide arm and floating bag, when the continuous water spray of sprinkler bead, the inside water of retaining jar can continuous increase, and water can make floating bag float, and the first liquid bag at top can be extruded to final floating bag, and the timely closing of sprinkler bead can be controlled through the first liquid bag of extrusion state.
Preferably, a guide hole is formed in the middle of the guide rod; the side surface of the guide rod is provided with air holes which are uniformly distributed at the position close to the bottom of the guide rod; the insides of the air holes are fixedly connected with one-way valves; the inner part of the air guide pipe is fixedly connected with an elastic sheet close to the guide rod; a second liquid bag is arranged on the side surface of the elastic sheet, and the second liquid bag is communicated with the first liquid bag; during operation, through setting up the shell fragment, when first liquid bag received the extrusion, the inside of second liquid bag can be impressed to the inside of first liquid bag partial liquid, has realized the bending deformation of shell fragment through second liquid bag, and then the shell fragment can block up the guide duct, and gas can directly flow to the water storage tank through the guide hole to through water storage tank downflow, guarantee the evaporation of the inside ponding of water storage tank.
Preferably, the bottom surface of the air guide pipe is fixedly connected with air pipes at the inner position of the water storage tank, and the air pipes are connected with the groove position at one side close to the prime motor; during operation, through setting up the trachea, when gaseous inside that flows into the retaining jar through the trachea, can not produce great mobile impact to floating bag, gaseous the inside water of retaining jar of also can stirring simultaneously, the evaporation of water with higher speed improves the cooling effect, and when rivers entered the retaining jar initial stage, gaseous inside that can not direct inflow retaining jar of avoiding the air current to disturb the normal work of floater simultaneously.
Preferably, the side surface of the guide rod is provided with first connecting holes which are uniformly distributed at the position of the sliding block; the side surface of the sliding block is provided with second connecting holes which are uniformly distributed; floating balls are uniformly arranged in the floating bag; during operation, through seting up first even hole and the hole of second even, when the guide duct blockked up, gaseous can be through first even hole and the inside that the hole entered into the floating bag of second even for floating bag inflation, promoting the overflow of water increases the time that gaseous passes through the retaining jar simultaneously, sets up even floater through the inside at floating bag simultaneously, has avoided when no gas enters into the floating bag, and the floater can play basic floating effect.
The invention has the following beneficial effects:
1. the invention relates to a high-stability magnetic centrifugal pump suitable for high-temperature and high-pressure working conditions, which is characterized in that a prime motor and an impeller are arranged; the prime motor drives the impeller to rotate in the pump shell, so that water can flow back when the water in the pump shell is insufficient.
2. The invention relates to a high-stability magnetic centrifugal pump suitable for high-temperature and high-pressure working conditions, which is characterized in that an air guide pipe and a water storage tank are arranged; when water flows through the interior of the cooling pipe, a small amount of water can be sprayed into the interior of the air guide pipe through the water spray head, and when air flow in the interior of the air guide pipe flows, the water sprayed out through the water spray head is quickly evaporated, so that the cooling is accelerated, and the cooling effect is improved; meanwhile, the water storage tank is arranged at the bottom of the air guide pipe, when the cooling pipe continuously flows through water, more water is sprayed from the water spray head, the water can be accumulated in the air guide pipe, the normal air guide and cooling of the air guide pipe are affected, and the excess water accumulated in the air guide pipe can be quickly collected and flows into the groove through the water storage tank and is guided into the corresponding water storage tank through the groove.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is an enlarged partial view at B in FIG. 2;
FIG. 5 is an enlarged partial view at C of FIG. 4;
FIG. 6 is an enlarged partial view at D of FIG. 5;
in the figure: the device comprises a prime mover 1, an impeller 2, a water inlet pipe 3, an adjusting sleeve 4, a first spring 5, a backflow hole 6, a heat conducting plate 7, an expansion bag 8, a sliding plate 9, a second spring 10, a first telescopic rod 11, a guide plate 12, a second telescopic rod 13, a cooling pipe 14, a first gear 15, a second gear 16, a core column 17, a fan blade 18, a heat dissipation hole 19, an air guide pipe 20, an air spraying head 21, a water spraying head 22, a water storage tank 23, a guide rod 24, a sliding block 25, a floating bag 26, a pressing plate 27, a third spring 28, a first liquid bag 29, an elastic sheet 30, a second liquid bag 31, an air pipe 32 and a floating ball 33.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the high stability magnetic centrifugal pump suitable for high temperature and high pressure working condition according to the present invention comprises a prime mover 1 and an impeller 2; the right side surface of the prime mover 1 is fixedly connected with a pump shell; a power cavity is formed in the pump shell; the interior of the power cavity is rotatably connected with an impeller 2, and the impeller 2 is fixedly connected with an output shaft of a prime mover 1; the right side surface of the pump shell is fixedly connected with a water inlet pipe 3; the top of the pump shell is provided with a water outlet hole; an adjusting sleeve 4 is fixedly connected inside the water outlet hole; the adjusting sleeve 4 is made of soft elastic material; the inner part of the adjusting sleeve 4 is fixedly connected with first springs 5 which are uniformly arranged; a backflow hole 6 is formed in the inner surface of the pump shell, and the backflow hole 6 is communicated with the water inlet pipe 3; when the centrifugal pump works, the centrifugal pump is a pump which conveys liquid by the centrifugal force generated when the impeller 2 rotates, the magnetic centrifugal pump is a high-tech product which applies the working principle of a permanent magnet coupling to the centrifugal pump, has the characteristics of reasonable design, advanced process, full sealing, no leakage, corrosion resistance and the like, in the prior art, the efficiency of the magnetic centrifugal pump is lower than that of the common centrifugal pump, the magnetic centrifugal pump cannot run at the flow rate which is lower than 30 percent of the rated flow rate, and is more forbidden to idle, and meanwhile, when the temperature of a conveying medium of the magnetic centrifugal pump exceeds the set temperature, the magnetic centrifugal pump needs to be externally provided with cooling, such as a heat insulation cavity, cooling liquid with the pressure higher than the sealing pressure is injected into a pump cavity to cool an inner magnetic rotor and a bearing, an isolation sleeve with an interlayer is also adopted, the cooling liquid is injected into the interlayer, or a cooling jacket and a cooling coil pipe are arranged on a pump body, but the problems of, when the water inlet pipe 3 of the centrifugal pump is insufficient, the water pressure in the pump shell is low, the requirement of the rated flow rate of more than 30 percent can not be ensured at the moment, and even the idling phenomenon is easy to occur, when the water pressure in the pump shell is insufficient by arranging the adjusting sleeve 4 in the water outlet hole, under the elastic force action of the first spring 5, the adjusting sleeve 4 blocks the water outlet hole, so that the size of the opening of the water outlet hole is reduced, even the water outlet hole is completely closed, at the moment, water in the pump shell flows back to the inside of the water inlet pipe 3 through the backflow hole 6, thereby effectively realizing the basic operation of the magnetic centrifugal pump, keeping the cyclic utilization of the basic water of the centrifugal pump, avoiding the idle running of the magnetic centrifugal pump, prolonging the service life of the magnetic centrifugal pump, meanwhile, the water outlet flow can be automatically adjusted, and the water loss is reduced under the condition of insufficient water outlet quantity.
As an embodiment of the present invention, the inner surface of the water inlet pipe 3 is provided with an adjusting groove; the notch of the adjusting groove is fixedly connected with a heat conducting plate 7; an expansion bag 8 is fixedly connected with the position, close to the heat conducting plate 7, in the adjusting groove; the bottom of the expansion bag 8 is fixedly connected with a sliding plate 9; a second spring 10 is fixedly connected between the sliding plate 9 and the bottom of the adjusting groove; the bottom of the adjusting groove is fixedly connected with a first telescopic rod 11; a guide groove is formed in the water inlet pipe 3; a guide plate 12 is connected inside the guide groove in a sliding manner; a second telescopic rod 13 is fixedly connected between the guide plate 12 and the bottom of the guide groove, and the second telescopic rod 13 is communicated with the first telescopic rod 11; a cooling cavity is formed in the water inlet pipe 3; the cooling cavity is fixedly connected with a cooling pipe 14, and openings at two ends of the cooling pipe 14 are respectively positioned at two sides of the guide plate 12; the during operation, through setting up heat-conducting plate 7 and cooling tube 14, when the inside water temperature of inlet tube 3 is higher, the temperature has exceeded when the specified value, the temperature of water can be transmitted for expansion bag 8 through heat-conducting plate 7, make the inside liquid evaporation of expansion bag 8, and then the expansion bag 8 inflation, expansion bag 8 can drive slide 9 and slide, slide 9 can extrude first telescopic link 11, make the inside gas of first telescopic link 11 enter into the inside of second telescopic link 13, second telescopic link 13 can drive guide plate 12 and derive the guide slot, can realize the shutoff to inlet tube 3 through guide plate 12, water can be through the leading-in inside to cooling tube 14 of inlet tube 3 this moment, then water can be through the leading-in inside to the pump case of cooling tube 14, flow path through cooling tube 14 has greatly increased water, realize the rapid cooling to water.
As an embodiment of the present invention, the output shaft of the prime mover 1 is fixedly connected with a first gear 15; a second gear 16 is meshed and connected below the first gear 15; the middle part of the second gear 16 is fixedly connected with a core column 17; the surface of the core column 17 is fixedly connected with uniformly arranged fan blades 18; the side surface of one side inside the cooling cavity is fixedly connected with uniformly arranged gas nozzles 21; the side surface of the other side of the cooling cavity is provided with heat dissipation holes 19 which are uniformly distributed; the during operation, through setting up jet head 21, the output post through prime mover 1 rotates and can drive first gear 15 and rotate, and first gear 15 can drive second gear 16 and rotate, and second gear 16 can drive stem 17 and rotate, can drive fan blade 18 through stem 17 and rotate, realizes that gas flows to gas can pass through jet head 21 blowout, the cooling of water with higher speed.
As an embodiment of the invention, the cooling pipe 14 is horizontally connected with air guide pipes 20 which are uniformly arranged, and two ends of the air guide pipe 20 are respectively close to the air nozzle 21 and the heat dissipation hole 19; when the cooling device works, the air guide pipe 20 is arranged, and the air guide pipe 20 is connected with the cooling pipe 14, so that the contact area of water and the outside is increased under the condition that the flow of water in the cooling pipe 14 is not influenced, the flowing gas can directly flow into the air guide pipe 20, and the cooling efficiency of the cooling pipe 14 is improved.
As an embodiment of the present invention, the inside of the air guiding pipe 20 is fixedly connected with uniformly arranged water spraying heads 22 at the position of the cooling pipe 14, and the water spraying heads 22 are all communicated with the inside of the cooling pipe 14; during operation, through setting up sprinkler bead 22, when the inside of cooling tube 14 flows through the water, a small amount of water can spout into the inside of guide duct 20 through sprinkler bead 22, and when the inside air current of guide duct 20 flows, through the quick evaporation of sprinkler bead 22 spun water, the cooling is accelerated, improves the cooling effect.
As an embodiment of the present invention, the inner surface of the air guiding pipe 20 is provided with uniformly arranged grooves; the bottom of the air guide pipe 20 is fixedly connected with water storage tanks 23 at the positions of the grooves, and the water storage tanks 23 are communicated with the grooves; during operation, the water storage tank 23 is arranged at the bottom of the air guide pipe 20, when water continuously flows through the cooling pipe 14, more water is sprayed from the water spray head 22, the water is accumulated in the air guide pipe 20, and normal air guide and cooling of the air guide pipe 20 are affected, and excess water accumulated in the air guide pipe 20 can be quickly collected and flows into the groove through the water storage tank 23, and is guided into the corresponding water storage tank 23 through the groove.
As an embodiment of the invention, a guide rod 24 is fixedly connected to the middle part of the water storage tank 23; the surface of the guide rod 24 is connected with a slide block 25 in a sliding way; the surface of the sliding block 25 is fixedly connected with a floating bag 26; the side surface of the guide rod 24 is fixedly connected with a pressure plate 27 close to the top of the guide rod 24; a third spring 28 is fixedly connected between the pressure plate 27 and the air guide pipe 20; the top surfaces of the pressing plates 27 are fixedly connected with first liquid bags 29; during operation, through setting up guide arm 24 and floating bag 26, when the continuous water spray of sprinkler head 22, the inside water of retaining tank 23 can be continuous to increase, and water can make floating bag 26 float, and first liquid bag 29 at the top can be extruded to last floating bag 26, can control in time closing of sprinkler head 22 through the first liquid bag 29 of extrusion state.
As an embodiment of the present invention, a guide hole is formed in the middle of the guide rod 24; the side surface of the guide rod 24 is provided with air holes which are uniformly distributed at the position close to the bottom of the guide rod 24; the insides of the air holes are fixedly connected with one-way valves; the position, close to the guide rod 24, inside the air guide pipe 20 is fixedly connected with an elastic sheet 30; the side surface of the elastic sheet 30 is provided with a second liquid bag 31, and the second liquid bag 31 is communicated with the first liquid bag 29; during operation, through setting up shell fragment 30, when first liquid bag 29 received the extrusion, the inside of second liquid bag 31 can be impressed to the inside of part liquid of first liquid bag 29, has realized the bending deformation of shell fragment 30 through second liquid bag 31, and then shell fragment 30 can block up guide duct 20, and gas can directly flow to water storage tank 23 through the guide hole to flow downwards through water storage tank 23, guarantee the evaporation of the inside ponding of water storage tank 23.
As an embodiment of the present invention, the bottom surface of the air guiding pipe 20 is fixedly connected with an air pipe 32 at an internal position of the water storage tank 23, and the air pipes 32 are all connected with a groove position at one side close to the prime mover 1; during operation, through setting up trachea 32, when gaseous inside that flows into water storage tank 23 through trachea 32, can not produce great mobile impact to floating bag 26, gaseous water that also can stir water storage tank 23 inside simultaneously accelerates the evaporation of water, improves the cooling effect, and when rivers flowed into water storage tank 23 initial stage, gaseous inside that can not directly flow into water storage tank 23 avoids the air current to disturb the normal work of floater 33 simultaneously.
As an embodiment of the present invention, the side surface of the guide rod 24 is provided with first connecting holes uniformly arranged at the position of the slider 25; the side surface of the slide block 25 is provided with second connecting holes which are uniformly distributed; floating balls 33 are uniformly arranged in the floating bag 26; during operation, through seting up first even hole and second even hole, when the guide duct 20 blockked up, gas can enter into the inside of floating bag 26 through first even hole and second even hole for floating bag 26 inflation, the overflow of promotion water increases the time that gaseous passes through retaining jar 23 simultaneously, simultaneously through setting up even floater 33 in the inside of floating bag 26, has avoided when no gas enters into floating bag 26, floater 33 can play basic floating effect.
The specific working process is as follows:
when the electromagnetic centrifugal pump works, when water is not sufficiently fed into a water inlet pipe 3 of the centrifugal pump, the water pressure in the pump shell is low, the requirement of the rated flow rate being more than 30% cannot be met, and even idling easily occurs, the adjusting sleeve 4 is arranged in the water outlet hole, when the water pressure in the pump shell is not sufficient, the adjusting sleeve 4 blocks the water outlet hole under the elastic force action of the first spring 5, so that the size of the opening of the water outlet hole is reduced, and even the water outlet hole is completely closed, at the moment, water in the pump shell flows back to the inside of the water inlet pipe 3 through the backflow hole 6, and then participates in; when the temperature of the internal water of the water inlet pipe 3 is high, and the water temperature exceeds a specified value, the temperature of the water can be transmitted to the expansion bag 8 through the heat conducting plate 7, so that the liquid in the expansion bag 8 is evaporated, the expansion bag 8 expands, the expansion bag 8 can drive the sliding plate 9 to slide, the sliding plate 9 can extrude the first telescopic rod 11, the gas in the first telescopic rod 11 can enter the second telescopic rod 13, the second telescopic rod 13 can drive the guide plate 12 to lead out of the guide groove, the water inlet pipe 3 can be blocked through the guide plate 12, at the moment, the water can be guided into the cooling pipe 14 through the water inlet pipe 3, then the water can be guided into the pump shell through the cooling pipe 14, the flow path of the water is greatly increased through the cooling pipe 14, and the rapid cooling of the water is; the rotation of the output column of the prime motor 1 can drive the first gear 15 to rotate, the first gear 15 can drive the second gear 16 to rotate, the second gear 16 can drive the core column 17 to rotate, the core column 17 can drive the fan blade 18 to rotate, the gas flow is realized, and the gas can be sprayed out through the gas spraying head 21, so that the cooling of water is accelerated; by connecting the air guide pipe 20 with the cooling pipe 14, under the condition that the flow of water in the cooling pipe 14 is not influenced, the contact area of the water and the outside is increased, the flowing gas can directly flow into the air guide pipe 20, and the cooling efficiency of the cooling pipe 14 is improved; by arranging the water spray head 22, when water flows through the interior of the cooling pipe 14, a small amount of water can be sprayed into the interior of the air guide pipe 20 through the water spray head 22, and when air flow in the interior of the air guide pipe 20 flows, the water sprayed out through the water spray head 22 is quickly evaporated, so that the cooling is accelerated, and the cooling effect is improved; when water continuously flows through the interior of the cooling pipe 14, more water is sprayed from the water spray head 22, the water is accumulated in the air guide pipe 20, the normal air guide and cooling of the air guide pipe 20 are affected, and the excess water accumulated in the air guide pipe 20 can be quickly collected and flow into the groove through the water storage tank 23, and is guided into the corresponding water storage tank 23 through the groove; when the sprinkler head 22 continuously sprays water, the water in the water storage tank 23 is continuously increased, the floating bag 26 floats by the water, finally the floating bag 26 extrudes the first liquid bag 29 at the top, and the sprinkler head 22 can be controlled to be closed in time through the first liquid bag 29 in an extruding state; when the first liquid bag 29 is squeezed, part of liquid in the first liquid bag 29 is pressed into the second liquid bag 31, the second liquid bag 31 realizes the bending deformation of the elastic sheet 30, the elastic sheet 30 blocks the air guide pipe 20, and air directly flows to the water storage tank 23 through the guide hole and downwards flows through the water storage tank 23, so that the evaporation of water stored in the water storage tank 23 is ensured; when the gas flows into the water storage tank 23 through the gas pipe 32, large flow impact cannot be generated on the floating bag 26, meanwhile, the gas can stir the water in the water storage tank 23, the evaporation of the water is accelerated, the cooling effect is improved, and meanwhile, when the water flows into the water storage tank 23 in the initial stage, the gas cannot directly flow into the water storage tank 23, so that the gas flow is prevented from interfering the normal work of the floating ball 33; when the air guide pipe 20 is blocked, air can enter the floating bag 26 through the first connecting hole and the second connecting hole, so that the floating bag 26 is expanded, the overflow of water is promoted, the time for the air to pass through the water storage tank 23 is prolonged, and meanwhile, the uniform floating ball 33 is arranged in the floating bag 26, so that the situation that when no air enters the floating bag 26, the floating ball 33 can play a basic floating role is avoided.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. 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 (10)
1. A high-stability magnetic centrifugal pump suitable for high-temperature and high-pressure working conditions comprises a prime mover (1) and an impeller (2); the method is characterized in that: the right side surface of the prime mover (1) is fixedly connected with a pump shell; a power cavity is formed in the pump shell; the interior of the power cavity is rotatably connected with an impeller (2), and the impeller (2) is fixedly connected with an output shaft of a prime mover (1); the right side surface of the pump shell is fixedly connected with a water inlet pipe (3); the top of the pump shell is provided with a water outlet hole; an adjusting sleeve (4) is fixedly connected inside the water outlet hole; the adjusting sleeve (4) is made of soft elastic material; the inner part of the adjusting sleeve (4) is fixedly connected with first springs (5) which are uniformly arranged; the inner surface of the pump shell is provided with a backflow hole (6), and the backflow hole (6) is communicated with the water inlet pipe (3).
2. The magnetic centrifugal pump suitable for high stability under high temperature and high pressure conditions of claim 1, wherein: the inner surface of the water inlet pipe (3) is provided with an adjusting groove; the notch of the adjusting groove is fixedly connected with a heat conducting plate (7); an expansion bag (8) is fixedly connected with the position, close to the heat conducting plate (7), in the adjusting groove; the bottom of the expansion bag (8) is fixedly connected with a sliding plate (9); a second spring (10) is fixedly connected between the sliding plate (9) and the bottom of the adjusting groove; the bottom of the adjusting groove is fixedly connected with a first telescopic rod (11); a guide groove is formed in the water inlet pipe (3); a guide plate (12) is connected inside the guide groove in a sliding manner; a second telescopic rod (13) is fixedly connected between the guide plate (12) and the bottom of the guide groove, and the second telescopic rod (13) is communicated with the first telescopic rod (11); a cooling cavity is formed in the water inlet pipe (3); the inside of cooling chamber has linked firmly cooling tube (14), and the both ends opening of cooling tube (14) is equallyd divide and is located the both sides position of baffle (12) respectively.
3. The magnetic centrifugal pump suitable for the high stability under the high temperature and high pressure working condition of claim 2 is characterized in that: the output shaft of the prime motor (1) is fixedly connected with a first gear (15); a second gear (16) is meshed and connected with the lower part of the first gear (15); the middle part of the second gear (16) is fixedly connected with a core column (17); the surface of the core column (17) is fixedly connected with uniformly arranged fan blades (18); the side surface of one side inside the cooling cavity is fixedly connected with uniformly arranged gas nozzles (21); and heat dissipation holes (19) which are uniformly distributed are formed in the side surface of the other side of the cooling cavity.
4. The high-stability magnetic centrifugal pump suitable for the high-temperature and high-pressure working condition as claimed in claim 3, wherein: the cooling pipe (14) is transversely connected with air guide pipes (20) which are uniformly arranged, and two ends of each air guide pipe (20) are respectively close to the air nozzle (21) and the heat dissipation holes (19).
5. The magnetic centrifugal pump suitable for high stability under high temperature and high pressure conditions of claim 4, wherein: the inside of the air guide pipe (20) is fixedly connected with uniformly arranged water spray heads (22) at the position of the cooling pipe (14), and the water spray heads (22) are communicated with the inside of the cooling pipe (14).
6. The magnetic centrifugal pump suitable for the high stability under the high temperature and high pressure working condition of claim 5 is characterized in that: the inner surface of the air guide pipe (20) is provided with uniformly arranged grooves; the bottom of the air guide pipe (20) is fixedly connected with water storage tanks (23) at the positions of the grooves, and the water storage tanks (23) are communicated with the grooves.
7. The magnetic centrifugal pump suitable for high stability under high temperature and high pressure working condition of claim 6, characterized in that: the middle part of the water storage tank (23) is fixedly connected with a guide rod (24); the surface of the guide rod (24) is connected with a sliding block (25) in a sliding way; the surface of the sliding block (25) is fixedly connected with a floating bag (26); the side surface of the guide rod (24) is fixedly connected with a press plate (27) close to the top of the guide rod (24); third springs (28) are fixedly connected between the pressure plate (27) and the air guide pipe (20); the top surfaces of the pressing plates (27) are fixedly connected with first liquid bags (29).
8. The magnetic centrifugal pump suitable for high stability under high temperature and high pressure conditions of claim 7, wherein: a guide hole is formed in the middle of the guide rod (24); the side surface of the guide rod (24) is provided with air holes which are uniformly distributed at the position close to the bottom of the guide rod (24); the insides of the air holes are fixedly connected with one-way valves; the inner part of the air guide pipe (20) is fixedly connected with an elastic sheet (30) close to the guide rod (24); the side surface of the elastic sheet (30) is provided with a second liquid bag (31), and the second liquid bag (31) is communicated with the first liquid bag (29).
9. The magnetic centrifugal pump suitable for high stability under high temperature and high pressure conditions of claim 8, wherein: the bottom surface of the air guide pipe (20) is fixedly connected with an air pipe (32) at the inner position of the water storage tank (23), and the air pipes (32) are positioned at the groove position close to one side of the prime motor (1).
10. The magnetic centrifugal pump of claim 9, wherein the magnetic centrifugal pump is adapted to be used under high-temperature and high-pressure conditions, and comprises: first connecting holes which are uniformly distributed are formed in the side surface of the guide rod (24) at the position of the sliding block (25); the side surface of the sliding block (25) is provided with second connecting holes which are uniformly distributed; floating balls (33) are uniformly arranged in the floating bag (26).
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| CN202110394086.0A CN113048067B (en) | 2021-04-13 | 2021-04-13 | High-stability magnetic centrifugal pump suitable for high-temperature high-pressure working condition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113969895A (en) * | 2021-11-25 | 2022-01-25 | 安徽岳泉泵业制造有限公司 | Centrifugal pump, centrifugal pump assembly and production and use methods thereof |
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| CN113048067B (en) | 2023-12-08 |
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