CN115681164A - Submerged vertical centrifugal pump and using method thereof - Google Patents

Abstract

The invention discloses a submerged vertical centrifugal pump, which comprises a pump pipe, a water outlet pipe, a first flange and an annular filter plate, wherein the water outlet pipe is arranged on the front surface of the pump pipe, and the first flange is arranged at the top of the pump pipe; the inner wall of the pump pipe is provided with two groups of threaded rings which are arranged up and down, and the inner wall of the pump pipe is provided with an annular filter plate through one group of threaded rings; the inner wall of the annular filter plate is provided with a plugging plate, four groups of connecting rods which are arranged in a square mode are arranged at the top of the annular filter plate, and the inner wall of the pump pipe is provided with a filtering disc through another group of threaded rings. The invention is provided with a detachable filtering mechanism which is matched with an impurity crushing mechanism, the probability of pipeline blockage can be effectively reduced, the cleaning warning effect is achieved according to the flow monitoring value, so that workers are reminded to clean the filtering mechanism, and meanwhile, the height of the water outlet can be changed according to the requirement.

Description

Submerged vertical centrifugal pump and using method thereof

Technical Field

The invention relates to the technical field of centrifugal pumps, in particular to a submerged vertical centrifugal pump and a using method thereof.

Background

The centrifugal pump transfers the mechanical energy of prime motor to liquid, and the speed energy and pressure energy of the liquid are increased in the process of flowing from the inlet to the outlet of the impeller due to the action of the centrifugal pump main body, the liquid discharged by the impeller passes through the extrusion chamber, most of the speed energy is converted into pressure energy, and then the pressure energy is conveyed out along the discharge pipeline, at the moment, vacuum or low pressure is formed at the inlet of the impeller due to the discharge of the liquid, the liquid in the water suction pool is pressed into the inlet of the impeller under the action of the liquid level pressure or atmospheric pressure, and then the rotating impeller continuously sucks in and discharges the liquid.

The existing centrifugal pump has the defects that:

1. the prior art CN112324667A discloses a vertical submerged centrifugal pump, which comprises a centrifugal pump body, a water outlet, an adjusting structure, a water guide hose, a connecting flange, a first support rod, a first rotating shaft, a second support rod and a support structure. The beneficial effect of this application is: through installing the water guide hose between flange and the centrifugal pump body, make the flange that is used for joint drain pipe can carry out the regulation of arbitrary angle, when the mounted position liquid level of centrifugal pump is lower, thereby flange can change the angle and reduce the height of connection of drain pipe, make things convenient for operating personnel to install, be equipped with the first bracing piece and the second bracing piece of rotating the connection between flange and the centrifugal pump body simultaneously, can restrict flange's removal scope, thereby guarantee that flange only can carry out the rotation on the coplanar, reduce the damage of rotating to the water guide hose when conveniently adjusting the flange angle, avoid the water guide hose to buckle. When the centrifugal pump transfers liquid, impurities in the liquid easily block a pump body pipeline to influence the liquid flow;

2. prior art CN209180045U discloses a vertical diaphragm squeezes centrifugal pump, "includes last casing, hydraulic press, feed inlet, hydraulic stem, diaphragm squeeze board, filter, first draw-in groove and weeping mouth, the fixed hydraulic press that has set up in upper end of going up the casing, both ends fixed mounting has gone up the top of casing about the feed inlet, the lower extreme flexible connection of hydraulic press has the hydraulic stem, the lower extreme fixed connection of hydraulic stem has the diaphragm squeeze board, the left end of going up the casing is fixed to have set up first draw-in groove, the right-hand member fixed card of first draw-in groove has connect the filter, the right-hand member of filter is fixed to be dug there is the second draw-in groove. This vertical diaphragm squeezes centrifugal pump can effectively solve the problem that the filter is ageing and damage, and the setting of bayonet lock can the quick replacement filter, and the scaling on the filtration pore can be scraped fast to the setting of hob and scraper blade simultaneously, makes cleaning more convenient. However, the particle size of the impurities filtered by the filtering structure in the centrifugal pump cannot be changed, and then the intercepted impurity particles cannot continuously flow along with the liquid, so that the filtering structure is easily blocked;

3. the prior art CN214660896U discloses a vertical centrifugal pump suitable for aviation kerosene transportation, which comprises a pump shell and a motor, wherein a pump cavity is arranged inside the pump shell, a water inlet is formed in one end of the pump cavity, an anti-leakage mechanism is arranged at the bottom of the motor, and the bottom of the anti-leakage mechanism is connected with the pump shell through a second bolt. In this application, the pump case is equipped with the water injection hole near stock solution chamber top, open sealing bolt and annotate the boat coal to the pump chamber when carrying out the first time of pouring into the boat coal, the water injection hole can lock through sealing bolt in the pump case is external, back starter motor, the stock solution chamber under the impeller can store certain boat coal after work, and be equipped with the inside groove between water inlet and pump chamber, the inside groove top is equipped with the overhead gage, the inside groove is close to the pump chamber and is equipped with down the baffle, then when the pump chamber, the pressure of inside groove and water inlet is equal, can prevent the emergence of refluence phenomenon in the pump, can store corresponding boat coal in the pump chamber, when using for the second time, can form the self-resorption of centrifugal pump. In the centrifugal pump, when a pipeline is about to be blocked, a worker cannot know that the pipeline is blocked, so that the interior of the centrifugal pump cannot be cleaned in time;

4. prior art CN113700656A discloses a vertical submerged centrifugal pump, "includes centrifugal pump body and a plurality of extension hose, the top of centrifugal pump body is equipped with the motor that provides power, all be equipped with the spout in the both sides wall of casing, the inside of casing is equipped with the process chamber, two the inside of spout and the inside of process chamber are equipped with and are used for preventing the stifled mechanism that prevents that the water inlet blocks up, the sliding chamber has been seted up to the inside of centrifugal pump body, the inside in sliding chamber is equipped with and is used for preventing the too high alarm mechanism of the inside temperature of the pump body. This application is equipped with the elasticity gasbag in through the spout, utilizes the gas that the elasticity gasbag extruded will block the filterate recoil outside the filter plate and go out, prevents that the water inlet from blockking up. If the interior of the centrifugal pump is in fault and abnormally heated, the circuit can be conducted and the alarm can be started to remind an operator to maintain in time. However, in the centrifugal pump, the height position of the water outlet cannot be changed, and then in practical application, when the water needs to be led out at a higher position, an external pipeline is needed.

Disclosure of Invention

The invention aims to provide a submerged vertical centrifugal pump and a using method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a submerged vertical centrifugal pump comprises a pump pipe, a water outlet pipe, a first flange and an annular filter plate, wherein the water outlet pipe is installed on the front face of the pump pipe, and the first flange is installed on the top of the pump pipe;

the inner wall of the pump pipe is provided with two groups of threaded rings which are arranged up and down, and the inner wall of the pump pipe is provided with an annular filter plate through one group of threaded rings;

the shutoff board is installed to ring filter's inner wall, four groups are the connecting rod that square was arranged at ring filter's top, the inner wall of pump line is installed through another a set of screw thread circle and is filtered the disc, and filters the bottom of disc and the top laminating of four groups of connecting rods, four groups are installed at the top of filtering the disc and are the square extension rod of arranging, wherein two sets of arranging side by side the holding rod is all installed at the back of extension rod, and the back of two sets of holding rods is laminated with the front of other two sets of extension rods respectively.

Preferably, a protection section of thick bamboo is installed to the diapire of shutoff board, micro motor is installed to the diapire of a protection section of thick bamboo, the bearing is installed to the bottom of filtering the disc, micro motor's output has installed the bull stick through the axle, the surface cover of bull stick is equipped with the movable lantern ring of arranging from top to bottom of three groups, three groups the binding nail is all installed to one side outer wall of the movable lantern ring, and the one end of binding nail runs through the inside of the movable lantern ring, the surface mounting of the movable lantern ring has the stirring blade of two sets of symmetrical arrangement.

Preferably, the surface mounting of outlet pipe has the second flange, flow sensor is installed through the second flange in the front of outlet pipe, the equipment piece is installed at flow sensor's top, the top of equipment piece is provided with the circular recess, the inner wall of circular recess is installed through the screw thread gomphosis and is linked up the dish, the pronunciation attention device is installed at the top of linking up the dish, and electric connection between pronunciation attention device and the flow sensor.

Preferably, a bending pipe is installed on the front face of the flow sensor, a folding pipe is installed at the top of the bending pipe, and an upright pipe is installed at the top of the folding pipe.

Preferably, the fixed plate is all installed to the both sides outer wall of the pipe of bending, the combined board is all installed, and is two sets of to the both sides outer wall of upright pipe the guide pole is all installed at the top of fixed plate, and the top of guide pole runs through the inside of combined board, and is two sets of the restriction plectane is all installed at the top of guide pole, and is wherein a set of multisection electric stretcher is installed at the top of combined board, multisection electric stretcher's top has the joint board of installing.

Preferably, one of them is organized the bottom of combined plate is provided with the thread groove, distance sensor is installed to the inner wall of thread groove, and electric connection between distance sensor and the multisection electric stretch pole, and distance sensor is located the top of one of them group of fixed plate.

Preferably, the bottom of pump line is installed the support frame, the bottom of pump line is installed the extraction and is advanced the pipe, and the extraction advances the inside that the bottom of pipe extends into the support frame.

Preferably, an upright sleeve is mounted at the top of the pump pipe through a first flange, a centrifugal pump main body is mounted at the top of the upright sleeve, and a wiring box is mounted on the outer wall of one side of the centrifugal pump main body.

A using method of a submerged vertical centrifugal pump comprises the following steps:

s1, when the centrifugal pump is assembled, a filtering mechanism composed of an annular filtering plate, a plugging plate, a connecting rod, a filtering disc, an extension rod and a holding rod is required to be placed inside a pump pipe, the filtering mechanism is driven to move downwards, meanwhile, a rotating force in a set direction is applied in a matched mode, the annular filtering plate is enabled to be embedded with a group of thread rings below through threads, the filtering disc is embedded with a group of thread rings above through threads, the pump pipe is connected with an upright sleeve through a first flange, a flow sensor is connected with a water outlet pipe through a second flange, a bent pipe and parts above the bent pipe are installed successively, and the back face of a connecting plate is attached to the front face of a centrifugal pump main body;

s2, when the centrifugal pump is used, a worker sets the height position of an upright pipe according to the requirement of the worker, sets a monitoring fixed value between a distance sensor and a lower fixed plate through an external control mechanism, then starts a plurality of sections of electric extension rods to correspondingly extend upwards and contract downwards, correspondingly transmits upward pulling force and downward pushing force to the upright pipe through a comprehensive plate while extending upwards and downwards, and then transmits the pulling force and the pushing force to the position of a folding pipe so as to adjust the comprehensive length of the folding pipe, and when the distance sensor senses that the distance between the distance sensor and the lower fixed plate is the same as the set value, the electric extension rods electrically connected with the distance sensor stop operating;

s3, liquid enters an inner cavity of the pump pipe from the pumping inlet pipe, the liquid flows upwards through the annular filter plate firstly so as to filter fewer large granular impurities in the liquid, then the liquid continuously flows upwards between the annular filter plate and the filter disc, and as the aperture of the through groove in the filter disc is smaller than that of the through groove in the annular filter plate, impurities passing through the annular filter plate can be intercepted by the filter disc;

s4, discharging the liquid at the position of the filtering disc from the position of the water outlet pipe, wherein the flow sensor can monitor the flow velocity of the liquid in real time and then convert the flow velocity into flow, and when the flow value monitored by the flow sensor is close to zero, a voice alarm electrically connected with the flow sensor sends out set alarm sound to remind a worker of cleaning the filtering disc and the annular filter plate;

and S5, disconnecting the connection between the bending pipe and the flow sensor and the connection between the pump pipe and the vertical sleeve pipe by a worker, holding the two groups of holding rods, applying a rotating force in a set direction to the holding rods to enable the annular filter plate, the filter disc and the two groups of threaded rings to be separated from contact, and then drawing the filter mechanism away from the pump pipe to clean.

Compared with the prior art, the invention has the beneficial effects that:

1. in the centrifugal pump, liquid passing through the interior of the pump pipe can be filtered in a layered manner through the filter plates with different apertures from top to bottom, so that large-particle impurities are reduced from blocking a water outlet pipe, a folding pipe and an upright pipe, meanwhile, the filter mechanism in the pump pipe is detachable, when the filter mechanism needs to be cleaned, a worker holds the two groups of holding rods and applies a rotating force in a set direction to the holding rods, then the rotating force is transmitted downwards to the positions of the filter disc and the annular filter plate through the extension rods to promote the two groups of holding rods to be separated from the two groups of threaded rings, and then the filter mechanism is pulled out of the pump pipe to be cleaned;

2. in the invention, the micro motor and the centrifugal pump run synchronously, an output shaft of the micro motor can drive the rotating rod to rotate towards a set direction according to a set rotating speed, and then the outer surface of the rotating rod rotates synchronously through the stirring blade arranged on the movable lantern ring to break up particle impurities intercepted by the filtering disc so as to reduce the particle size, and the filtering disc can allow the impurity particles to pass through and further effectively prevent the filtering disc from blocking a through groove in the filtering disc;

3. the flow sensor is specifically an ultrasonic sensor, wherein when ultrasonic waves are transmitted in flowing fluid, the information of the flow velocity of the fluid is loaded, so that the flow velocity of the fluid can be detected through the received ultrasonic waves and then converted into flow, and when the monitored flow value is close to zero, a voice alarm electrically connected with the voice alarm sends out a set alarm sound to remind a worker of cleaning the filtering disc and the annular filtering plate;

4. according to the invention, a worker can set the height position of the integral water outlet of the centrifugal pump according to the requirement of the worker, the worker sets a monitoring fixed value between the distance sensor and a lower fixed plate in advance, then starts the multi-section electric extension rod, monitors the existing distance value between the distance sensor and the lower fixed plate according to the distance sensor, correspondingly performs up-down telescopic operation, and correspondingly transmits upward pulling force and downward pushing force to the vertical pipe through the comprehensive plate when the multi-section electric extension rod is telescopic so as to adjust the comprehensive length of the folding pipe, and the comprehensive plate provided with the distance sensor moves up and down along with the vertical pipe until the distance sensor senses that the distance between the distance sensor and the lower fixed plate is the same as the set value, and stops running with the multi-section electric extension rod electrically connected with the distance sensor.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the installation structure of the annular filter plate, the plugging plate and the connecting rod of the invention;

FIG. 3 is a schematic view of an installation structure of a flow sensor, an assembly block and a voice alarm according to the present invention;

FIG. 4 is a schematic view of the structure of FIG. 1 at A according to the present invention;

FIG. 5 is a schematic view of the installation structure of the composite board, the guide rod and the multi-section electric extension rod of the present invention;

FIG. 6 is a schematic view of the structure of FIG. 1 at B according to the present invention;

FIG. 7 is a schematic view of the installation structure of the bending tube, the fixing plate and the guide rod of the present invention;

fig. 8 is a schematic sectional view of the pump tube of the present invention.

In the figure: 1. a pump pipe; 2. a water outlet pipe; 3. a first flange; 4. an annular filter plate; 5. a plugging plate; 6. a connecting rod; 7. a filter disc; 8. an extension rod; 9. a holding rod; 10. a protective cylinder; 11. a micro motor; 12. a rotating rod; 13. a movable collar; 14. a stirring blade; 15. a flow sensor; 16. assembling the blocks; 17. a circular groove; 18. a splice tray; 19. a voice alarm; 20. bending a pipe; 21. folding the tube; 22. an upright tube; 23. a fixing plate; 24. a composite board; 25. a guide rod; 26. a restraining disk; 27. a multi-section electric extension rod; 28. a connector tile; 29. a distance sensor; 30. a support frame; 31. extracting the inlet pipe; 32. an upright sleeve; 33. a centrifugal pump body; 34. and (5) connecting the wire box.

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. 1-8, an embodiment of the present invention is shown:

a submerged vertical centrifugal pump and a using method thereof comprise a pump pipe 1, a water outlet pipe 2, a first flange 3 and an annular filter plate 4, wherein the water outlet pipe 2 is installed on the front surface of the pump pipe 1, and the first flange 3 is installed on the top of the pump pipe 1;

the inner wall of the pump pipe 1 is provided with two groups of threaded rings which are arranged up and down, and the inner wall of the pump pipe 1 is provided with an annular filter plate 4 through one group of threaded rings;

further, this pump line 1 advances the flow path of pipe 31 to outlet pipe 2 place from the extraction as liquid, and its inside two sets of screw rings through setting for can be convenient for add filter equipment for pump line 1, be used for filtering its inside liquid that flows, simultaneously this centrifugal pump is inside, the place that the liquid flows through all covers has the anti-corrosion coating, can effectively avoid the equipment inner chamber to be corroded by liquid, then the side improves the life of centrifugal pump, the aperture that leads to the groove in the ring filter 4 is greater than and filters the disc 7 in the groove aperture, its main great graininess debris that filter the liquid in few.

Shutoff board 5 is installed to the inner wall of ring filter 4, four groups of connecting rods 6 that are square arrangement are installed at the top of ring filter 4, filter disc 7 is installed through another set of thread circle to the inner wall of pump line 1, and the bottom of filtering disc 7 and the top laminating of four group's connecting rods 6, four groups of extension rods 8 that are square arrangement are installed at the top of filtering disc 7, wherein the holding rod 9 is all installed at two sets of extension rods 8's that arrange side by side backs, and the back of two sets of holding rods 9 is laminated with the front of two sets of extension rods 8 in addition respectively.

Further, the setting of the blocking plate 5 effectively ensures that liquid cannot permeate into the protective barrel 10 from the annular filter plate 4, the connecting rod 6 is used for connecting the annular filter plate 4 and the filter disc 7 to enable the annular filter plate 4 and the filter disc 7 to form a whole for convenient installation, the aperture of the through groove in the filter disc 7 is smaller than that of the through groove in the annular filter plate 4, so that impurities passing through the annular filter plate 4 can be intercepted by the filter disc 7, impurities contained in the liquid can be effectively intercepted through two groups of filter plates with different apertures to prevent the impurities from blocking the water outlet pipe 2, wherein the filtering mechanism formed by combining the annular filter plate 4, the blocking plate 5, the connecting rod 6, the filter disc 7, the extension rod 8 and the holding rod 9 is in an unfixed assembly state with the pump pipe 1, when the filtering mechanism needs to be cleaned, a worker holds the two groups of holding rods 9 to apply rotating force in a set direction to the holding rod 9, then the rotating force is transmitted downwards to the positions of the filter disc 7 and the annular filter disc 4 through the extension rod 8 to enable the two groups of thread rings to be separated from the contact, and then the filtering mechanism is pulled away from the pump pipe 1 to be cleaned.

A protective barrel 10 is installed to the diapire of shutoff board 5, micro motor 11 is installed to the diapire of protective barrel 10, the bearing is installed to the bottom of filtering disc 7, micro motor 11's output has bull stick 12 through the axle installation, the surface cover of bull stick 12 is equipped with the movable lantern ring 13 of arranging from top to bottom of three groups, the tight pin is all installed to one side outer wall of three groups movable lantern ring 13, and the one end of tight pin runs through the inside of the movable lantern ring 13, the surface mounting of the movable lantern ring 13 has two sets of symmetrical arrangement's stirring blade 14.

Further, when this centrifugal pump starts, micro motor 11 follows the operation, and wherein the output shaft can drive bull stick 12 and set for the direction according to setting for the rotational speed orientation and rotate, and later 12 surfaces of bull stick rotate through stirring blade 14 synchronous rotation that movable lantern ring 13 was installed for break up the granule debris that are filtered the interception of disc 7, and then reduce the particle size, filter disc 7 can allow this type of foreign particles to pass through, and then effectively avoids it to block up the logical groove in filtering disc 7.

The surface mounting of outlet pipe 2 has the second flange, and flow sensor 15 is installed through the second flange in the front of outlet pipe 2, and equipment piece 16 is installed at flow sensor 15's top, and the top of equipment piece 16 is provided with circular recess 17, and the inner wall of circular recess 17 is installed through the screw thread gomphosis and is linked up dish 18, links up the top of dish 18 and installs pronunciation attention device 19, and electric connection between pronunciation attention device 19 and the flow sensor 15.

Further, the flow sensor 15 is specifically an ultrasonic sensor, wherein the ultrasonic wave carries the information of the flow velocity of the fluid when propagating in the flowing fluid, so the flow velocity of the fluid can be detected by the received ultrasonic wave, and then converted into the flow, when the flow value monitored by the ultrasonic wave is close to zero, the voice alarm 19 electrically connected with the ultrasonic wave sends out a set alarm sound to remind the worker of cleaning the filter disc 7 and the annular filter plate 4, the inside of the circular groove 17 is provided with a thread consistent with the outer surface of the connecting disc 18, and then the two are conveniently embedded through the thread to be detachably assembled, so that the voice alarm 19 can be replaced later.

The front surface of the flow sensor 15 is provided with a bending pipe 20, the top of the bending pipe 20 is provided with a folding pipe 21, and the top of the folding pipe 21 is provided with an upright pipe 22.

Further, the bending pipe 20 is used as a passage for transferring liquid from the outlet pipe 2 to the place where the folding pipe 21 is located, wherein the length of the folding pipe 21 itself has variability, and when an upward pulling force is applied to the folding pipe, the folding pipe can extend the comprehensive length of the folding pipe, and conversely, when a downward pressure is applied to the folding pipe, the folding pipe can shrink the comprehensive length of the folding pipe.

Fixed plate 23 is all installed to the both sides outer wall of the pipe 20 of bending, and combined board 24 is all installed to the both sides outer wall of upright tube 22, and guide rod 25 is all installed at the top of two sets of fixed plates 23, and guide rod 25's top runs through combined board 24's inside, and restriction plectane 26 is all installed at two sets of guide rod 25's top, and multisection electric stretch rod 27 is installed at one of them set of combined board 24's top, and multisection electric stretch rod 27's top has the linkage plate 28 of installing.

Further, when the centrifugal pump is used, a worker sets a monitoring fixed value between the distance sensor 29 and the lower fixing plate 23 through an external control mechanism, then the multi-section electric extension rod 27 is started, the existing distance value between the distance sensor 29 and the lower fixing plate 23 is monitored according to the distance sensor 29, up-and-down extension operation is correspondingly carried out, the multi-section electric extension rod 27 extends and retracts, meanwhile, upward pulling force and downward pushing force are correspondingly transmitted to the vertical pipe 22 through the comprehensive plate 24, then the pulling force and the pushing force are transmitted to the position of the folding pipe 21, so that the comprehensive length of the folding pipe 21 is adjusted, the comprehensive plate 24 provided with the distance sensor 29 moves up and down along the vertical pipe 22, the multi-section electric extension rod 27 electrically connected with the folding pipe 27 stops running until the distance between the distance sensor 29 sensing device and the lower fixing plate 23 is the same as the set value, the outer wall of the guide rod 25 and the comprehensive plate 24 are in a non-fixed attaching state, and when the folding pipe 21 extends and retracts up and down, the comprehensive plate 24 can be driven to move up and down along the outer surface of the guide rod 25, and the folding pipe 21 can be effectively prevented from being bent.

The bottom of one group of the composite plates 24 is provided with a thread groove, the inner wall of the thread groove is provided with a distance sensor 29, the distance sensor 29 is electrically connected with the multi-section electric extension rod 27, and the distance sensor 29 is positioned above one group of the fixing plates 23.

Further, distance sensor 29's surface is provided with the screw thread unanimous with the thread groove, then makes things convenient for distance sensor 29's demountable installation, and when distance sensor 29 used, it can monitor self apart from the monitoring definite value between the below fixed plate 23.

The bottom of pump pipe 1 is installed with support frame 30, and the bottom of pump pipe 1 is installed and is drawn into pipe 31, and the bottom that draws into pipe 31 extends into the inside of support frame 30.

Further, the support frame 30 provides a relatively stable supporting force for the pump pipe 1, so that the whole centrifugal pump is stably placed, and the pumping inlet pipe 31 is used as liquid entering an inlet of the centrifugal pump.

The top of the pump pipe 1 is provided with an upright sleeve 32 through a first flange 3, the top of the upright sleeve 32 is provided with a centrifugal pump main body 33, and the outer wall of one side of the centrifugal pump main body 33 is provided with a wiring box 34.

Further, the centrifugal pump body 33 acts on the liquid by means of the rotating impeller therein, which transfers the mechanical energy of the prime mover to the liquid, since the speed energy and the pressure energy of the liquid are increased during the process of the liquid flowing from the inlet to the outlet of the impeller by the action of the centrifugal pump body 33, most of the speed energy of the liquid discharged by the impeller is converted into pressure energy through the pressure-out chamber, and then the liquid is conveyed out along the discharge pipeline, at this time, vacuum or low pressure is formed at the inlet of the impeller due to the discharge of the liquid, the liquid in the suction sump is pressed into the inlet of the impeller under the action of the liquid level pressure or atmospheric pressure, so that the rotating impeller continuously sucks and discharges the liquid, and the electric connection box 34 effectively prevents rain and dust from invading into the internal circuit of the centrifugal pump body 33.

Further, the working steps of the vertical type corrosion-resistant submerged centrifugal pump are as follows:

s1, when the centrifugal pump is assembled, a filtering mechanism composed of an annular filtering plate 4, a plugging plate 5, a connecting rod 6, a filtering disc 7, an extension rod 8 and a holding rod 9 is required to be placed inside a pump pipe 1, the filtering mechanism is driven to move downwards, meanwhile, a rotating force in a set direction is applied in a matched mode, the annular filtering plate 4 is enabled to be embedded with a group of lower threaded rings through threads, the filtering disc 7 is embedded with a group of upper threaded rings through threads, the pump pipe 1 is connected with an upright sleeve 32 through a first flange 3, then a flow sensor 15 is connected with a water outlet pipe 2 through a second flange, a bent pipe 20 and parts above the bent pipe are installed successively, and the back face of a connecting plate 28 is attached to the front face of a centrifugal pump main body 33;

s2, when the centrifugal pump is used, a worker sets the height position of the vertical pipe 22 according to the requirement of the worker, sets a monitoring fixed value between the distance sensor 29 and the lower fixing plate 23 through an external control mechanism, then starts the multi-section electric extension rod 27 to correspondingly perform upward extension and downward contraction operations, correspondingly transmits upward pulling force and downward pushing force to the vertical pipe 22 through the comprehensive plate 24 while extending up and down, and then transmits the pulling force and the pushing force to the position of the folding pipe 21 so as to adjust the comprehensive length of the folding pipe, and when the distance sensor 29 senses that the distance between the centrifugal pump and the lower fixing plate 23 is equal to the set value, the multi-section electric extension rod 27 electrically connected with the folding pipe stops running;

s3, liquid enters an inner cavity of the pump pipe 1 from the position of the pumping inlet pipe 31, the liquid firstly flows upwards through the annular filter plate 4 so as to filter less large granular impurities in the liquid, then the liquid continuously flows upwards to a position between the annular filter plate 4 and the filter disc 7, and as the aperture of the through groove in the filter disc 7 is smaller than that of the through groove in the annular filter plate 4, impurities passing through the annular filter plate 4 can be intercepted by the filter disc 7, and at the moment, because the micro motor 11 is in a starting state, the outer surface of the rotating rod 12 can rotate towards a set direction under the driving of the output shaft of the micro motor 11 through the stirring blade 14 arranged on the movable lantern ring 13 so as to break up the granular impurities intercepted by the filter disc 7 and further reduce the size of particles;

s4, discharging the liquid at the position of the filtering disc 7 from the position of the water outlet pipe 2, wherein the flow sensor 15 can monitor the flow velocity of the liquid in real time and then convert the flow velocity into flow, and when the flow velocity value monitored by the flow sensor 15 is close to zero, the voice alarm 19 electrically connected with the flow sensor sends out a set alarm sound to remind a worker of cleaning the filtering disc 7 and the annular filtering plate 4;

s5, the worker breaks the connection between the bending pipe 20 and the flow sensor 15, breaks the connection between the pump pipe 1 and the upright sleeve 32, holds the two groups of holding rods 9, applies a rotating force in a set direction to the holding rods to enable the annular filter plate 4, the filter disc 7 and the two groups of threaded rings to be separated from each other, and then pulls the filter mechanism out of the pump pipe 1 to be cleaned.

The working principle is as follows: the working personnel sets a monitoring fixed value between a distance sensor 29 and a lower fixing plate 23 through an external control mechanism, then a plurality of electric extension rods 27 are started, the existing distance value between the distance sensor 29 and the lower fixing plate 23 is monitored according to the distance sensor 29, the vertical extension operation is correspondingly carried out, then the comprehensive length of a folding pipe 21 is changed, a comprehensive plate 24 provided with the distance sensor 29 moves up and down along with an upright pipe 22 until the distance between the distance sensor 29 and the lower fixing plate 23 is sensed to be the same as the set value, the operation of the electric extension rods 27 electrically connected with the distance sensor stops, when the centrifugal pump operates, a micro motor 11 synchronously operates, liquid entering a pump pipe 1 from an extraction inlet pipe 31 is filtered by an annular filter plate 4 to filter few large granular impurities, then the impurity particles passing through the annular filter plate 4 are intercepted by the filter disc 7, the micro motor 11 is matched to drive a rotating rod 12 to rotate according to a set rotating speed, then a movable lantern ring 13 drives a stirring blade 14 to synchronously rotate so as to break away the granular impurities intercepted by the filter disc 7, the filter disc 7 to reduce the size, then the granular impurities and the liquid flow rate in the flow rate sensor 2 are reminded by the alarm sensor 15, and the working personnel are connected with the flow rate monitoring alarm, and the flow rate sensor 15, and the flow rate of the flow rate sensor is set to be close to the alarm when the flow rate of the flow rate monitoring alarm device, when the flow rate monitoring device is set.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. The utility model provides a vertical centrifugal pump under liquid, includes pump line (1), outlet pipe (2), first flange (3) and annular filter (4), its characterized in that: the front surface of the pump pipe (1) is provided with a water outlet pipe (2), and the top of the pump pipe (1) is provided with a first flange (3);

the inner wall of the pump pipe (1) is provided with two groups of threaded rings which are arranged up and down, and the inner wall of the pump pipe (1) is provided with an annular filter plate (4) through one group of threaded rings;

shutoff board (5) are installed to the inner wall of ring filter (4), four groups of connecting rods (6) that are square and arrange are installed at the top of ring filter (4), filter disc (7) are installed through another a set of fillet of screw in the inner wall of pump line (1), and the top laminating of the bottom of filtering disc (7) and four groups of connecting rods (6), four groups of extension rod (8) that are square and arrange are installed at the top of filtering disc (7), wherein two sets of arranging side by side holding rod (9) are all installed at the back of extension rod (8), and the back of two sets of holding rod (9) respectively with the front laminating of two sets of extension rod (8) in addition.

2. The submerged vertical centrifugal pump of claim 1, characterized in that: a protection section of thick bamboo (10) is installed to the diapire of shutoff board (5), micro motor (11) are installed to the diapire of a protection section of thick bamboo (10), the bearing is installed to the bottom of filtering disc (7), bull stick (12) are installed through the axle to the output of micro motor (11), the surface cover of bull stick (12) is equipped with the movable lantern ring (13) of arranging from top to bottom of three groups, three groups the binding nail is all installed to one side outer wall of the movable lantern ring (13), and the one end of binding nail runs through the inside of the movable lantern ring (13), the surface mounting of the movable lantern ring (13) has stirring blade (14) of two sets of symmetrical arrangement.

3. The submerged vertical centrifugal pump of claim 1, characterized in that: the surface mounting of outlet pipe (2) has the second flange, flow sensor (15) are installed through the second flange in the front of outlet pipe (2), equipment piece (16) are installed at the top of flow sensor (15), the top of equipment piece (16) is provided with circular recess (17), the inner wall of circular recess (17) is installed through the screw thread gomphosis and is linked up set (18), pronunciation attention device (19) are installed at the top of linking up set (18), and electric connection between pronunciation attention device (19) and flow sensor (15).

4. The submersible vertical centrifugal pump of claim 3, wherein: the flow sensor is characterized in that a bending pipe (20) is installed on the front face of the flow sensor (15), a folding pipe (21) is installed at the top of the bending pipe (20), and an upright pipe (22) is installed at the top of the folding pipe (21).

5. The submerged vertical centrifugal pump of claim 4, characterized in that: fixed plate (23) are all installed to the both sides outer wall of pipe (20) of bending, combined board (24) are all installed to the both sides outer wall of upright pipe (22), and are two sets of guide rod (25) are all installed at the top of fixed plate (23), and the inside of combined board (24) is run through at the top of guide rod (25), and are two sets of restriction plectane (26) are all installed at the top of guide rod (25), and wherein a set of multisection electric stretch rod (27) are installed at the top of combined board (24), there is connecting plate (28) to install at the top of multisection electric stretch rod (27).

6. An underwater vertical centrifugal pump according to claim 5, wherein: wherein a set of the bottom of combined plate (24) is provided with the thread groove, distance sensor (29) are installed to the inner wall of thread groove, and electric connection between distance sensor (29) and multisection electric stretch pole (27), and distance sensor (29) are located the top of one of them group fixed plate (23).

7. The submerged vertical centrifugal pump of claim 1, characterized in that: support frame (30) are installed to the bottom of pump line (1), the bottom of pump line (1) is installed the extraction and is advanced pipe (31), and the extraction advances the inside that the bottom of pipe (31) extends into support frame (30).

8. The submerged vertical centrifugal pump of claim 1, characterized in that: the top of pump line (1) is installed upright sleeve pipe (32) through first flange (3), centrifugal pump main part (33) is installed at the top of upright sleeve pipe (32), electricity take-up box (34) is installed to one side outer wall of centrifugal pump main part (33).

9. Method for using a vertical centrifugal pump under liquid, characterized in that the centrifugal pump according to any of claims 1-8 is operated as follows:

s1, when the centrifugal pump is assembled, a filtering mechanism formed by an annular filtering plate (4), a plugging plate (5), a connecting rod (6), a filtering disc (7), an extending rod (8) and a holding rod (9) needs to be placed inside a pump pipe (1), the filtering mechanism is driven to move downwards, meanwhile, rotating force in a set direction is applied in a matched mode, the annular filtering plate (4) is enabled to be embedded with a group of lower threaded rings through threads, the filtering disc (7) is embedded with a group of upper threaded rings through threads, then the pump pipe (1) is connected with an upright sleeve (32) through a first flange (3), then a flow sensor (15) is connected with a water outlet pipe (2) through a second flange, a bent pipe (20) and parts above the bent pipe are installed successively, and the back face of a connecting plate (28) is attached to the front face of a centrifugal pump main body (33);

s2, when the centrifugal pump is used, a worker sets the height position of the vertical pipe (22) according to the requirement of the worker, sets a monitoring fixed value between the distance sensor (29) and the lower fixing plate (23) through an external control mechanism, then starts the multi-section electric extension rod (27) to enable the multi-section electric extension rod to correspondingly extend upwards and contract downwards, upwards pulling force and downwards pushing force are correspondingly transmitted to the vertical pipe (22) through the comprehensive plate (24) while the multi-section electric extension rod extends and contracts upwards and downwards, then the pulling force and the pushing force are transmitted to the position of the folding pipe (21) so that the comprehensive length of the multi-section electric extension rod can be adjusted, and when the distance sensor (29) senses that the distance between the multi-section electric extension rod and the lower fixing plate (23) is equal to the set value, the multi-section electric extension rod (27) electrically connected with the multi-section electric extension rod stops running;

s3, liquid enters an inner cavity of the pump pipe (1) from the pumping inlet pipe (31), the liquid firstly flows upwards through the annular filter plate (4) so as to filter less large granular impurities in the liquid, then the liquid continuously flows upwards to a position between the annular filter plate (4) and the filter disc (7), and as the aperture of the through groove in the filter disc (7) is smaller than that of the through groove in the annular filter plate (4), impurities passing through the annular filter plate (4) can be intercepted by the filter disc (7), at the moment, because the micro motor (11) is in a starting state, the outer surface of the rotating rod (12) can rotate towards a set direction under the driving of the output shaft of the micro motor (11) through the stirring blade (14) arranged on the movable lantern ring (13), so as to break up the granular impurities intercepted by the filter disc (7), and further reduce the size of particles;

s4, discharging the liquid at the position of the filter disc (7) from the position of the water outlet pipe (2), wherein the flow sensor (15) can monitor the flow velocity of the liquid in real time and then convert the flow velocity into flow, and when the flow value monitored by the flow sensor (15) is close to zero, the voice alarm (19) electrically connected with the flow sensor sends out a set alarm sound to remind a worker of cleaning the filter disc (7) and the annular filter plate (4);

s5, the worker breaks the connection between the bending pipe (20) and the flow sensor (15), breaks the connection between the pump pipe (1) and the vertical sleeve (32), holds the two groups of holding rods (9), applies rotating force in a set direction to the holding rods to enable the annular filter plate (4), the filter disc (7) and the two groups of threaded rings to be separated from contact, and then pulls the filter mechanism away from the pump pipe (1) to clean.

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