CN214118509U

CN214118509U - Combined screw rod submersible pump

Info

Publication number: CN214118509U
Application number: CN202120064435.8U
Authority: CN
Inventors: 邱小明
Original assignee: Ningbo Fluent Tools Co ltd
Current assignee: Ningbo Fluent Tools Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-09-03
Anticipated expiration: 2031-01-11

Abstract

The utility model relates to the technical field of submersible pumps, in particular to a combined screw submersible pump, which comprises a first shell, a second shell and a third shell which are connected in sequence, wherein a driving motor is fixedly arranged in the first shell, the driving motor is connected with a screw through a coupler, the screw passes through the second shell and the third shell, the second shell is provided with a water inlet hole, the outer wall of the screw in the third shell is uniformly provided with a plurality of pressurizing components, and the tail end of the third shell is provided with a water outlet; the boost assembly includes an impeller. The utility model provides a combination formula screw rod immersible pump wherein is provided with pressure boost subassembly, can set up the pressure boost subassembly of corresponding quantity according to actual conditions, mutually supports between each part among the pressure boost subassembly for water is every through a pressure boost subassembly with regard to the certain water pressure of pressure boost, thereby forms the pressure differential of relatively stable, solves current immersible pump and appears the unstable problem of pressure when using.

Description

Combined screw rod submersible pump

Technical Field

The utility model relates to a immersible pump technical field especially relates to a modular screw rod immersible pump.

Background

The submersible pump is an important device for pumping water from a deep well, when in use, the whole unit is submerged into water to work, and the underground water is pumped to the ground surface, so that the submersible pump is used for domestic water, mine emergency rescue, industrial cooling, farmland irrigation, seawater lifting and ship load regulation, and can also be used for fountain landscape.

When the existing submersible pump is used, the phenomenon of unstable pressure usually occurs, so that the submersible pump has certain limitation when in use.

To above problem, the utility model provides a modular screw rod immersible pump.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem that a modular screw rod immersible pump is provided, the unstable problem of pressure appears when using in current immersible pump can be solved.

(II) technical scheme

The utility model provides a technical scheme that above-mentioned technical problem adopted is: the utility model provides a modular screw rod immersible pump, includes first casing, second casing and the third casing that connects gradually, fixed mounting has driving motor in the first casing, driving motor has the screw rod through the coupling joint, the screw rod passes second casing and third casing, the second casing is equipped with the inlet opening, a plurality of pressure boost subassembly is evenly installed to the outer wall of the screw rod in the third casing, the tail end of third casing is equipped with the delivery port.

The pressurizing assembly comprises an impeller, an installation part matched with the screw rod is arranged in the middle of the impeller, an outer cover is fixed on the front surface of the impeller, and a water inlet is formed in the middle of the outer cover; and a diffuser is fixed on the back of the impeller.

The diffuser comprises a shell, a middle plate and pages, the back of the impeller is matched with the middle plate and the shell, the middle plate is uniformly provided with water through holes along the circumferential direction, and the water through holes are arranged along the edge of the middle plate; the side wall of the middle plate, which is far away from the impeller, is uniformly provided with the pages, and a water collecting channel is formed between two adjacent pages; and a through hole matched with the screw is formed in the middle of the middle plate.

Preferably, a check valve is arranged inside the third shell and located between the water outlet and the pressurizing assembly.

Preferably, the check valve comprises a valve plate, a middle shaft and a telescopic spring, and the telescopic spring is sleeved on the outer wall of the middle shaft.

Preferably, the inner wall of third casing is equipped with first stopper and second stopper, first stopper with the second stopper is all followed third casing inner wall circumference direction evenly is provided with a plurality of.

Preferably, the valve plate is movably installed between the first limiting block and the second limiting block.

Preferably, a pressing rod is arranged at a position, close to the water outlet, of the inner wall of the third shell, a plurality of pressing rods are uniformly arranged along the circumferential direction of the inner wall of the third shell, and the telescopic spring is located between the pressing rod and the valve plate.

Preferably, the water inlet on the second shell is uniformly arranged along the circumferential direction of the second shell, and the inner wall of the second shell is provided with a filter screen.

Preferably, the blades of the impeller are in a reverse bending type, a diffusion channel is formed between every two adjacent blades, and the paging is matched with the blades of the impeller.

(III) advantageous effects

1. The utility model provides a modular screw rod immersible pump wherein is provided with pressure boost subassembly, can set up the pressure boost subassembly of corresponding quantity according to actual conditions, mutually supports between each part among the pressure boost subassembly for water is every through a pressure boost subassembly with regard to the certain water pressure of pressure boost, thereby forms the pressure differential of relatively stable, solves current immersible pump and appears the unstable problem of pressure when using.

2. The utility model provides a combined screw rod immersible pump, water enters into the third casing inside, water enters into the diffusion passageway of impeller through the water inlet of dustcoat, under the effect of centrifugal force, water is radial injection away, at this moment, water obtains kinetic energy and pressure energy simultaneously, then the water that sprays out is influenced by the shell and is intercepted, and pass through the limbers from the gap of impeller and intermediate lamella, shell, enter into the diffuser and be provided with one side of paging and enter into the water gathering passageway, the diffuser makes the water steering screw that flows in gather together and make preparation for water enters into next pressure boost component; the water inlet of the next pressurizing assembly is connected with the outlet of the diffuser; the structure can pressurize water to a certain water pressure after passing through one pressurizing assembly, thereby forming a relatively stable pressure difference.

Drawings

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

fig. 2 is a schematic view of the top view angle structure of the pressurizing assembly of the present invention;

fig. 3 is a schematic view of the structure of the boost assembly in a bottom view according to the present invention;

FIG. 4 is a schematic structural view of the water flowing through the pressurizing assembly according to the present invention; .

Wherein: the device comprises a first shell body 1, a second shell body 2, a water inlet hole 21, a filter screen 22, a third shell body 3, a first limiting block 31, a second limiting block 32, a pressure lever 33, a driving motor 4, a screw rod 5, a pressurizing assembly 6, an impeller 61, a diffusion channel 610, an installation part 62, an outer cover 63, a water inlet 64, a diffuser 65, an outer shell 66, an intermediate plate 67, a perforation 670, a paging 68, a water collecting channel 680, a water through hole 69, a water outlet 7, a check valve 8, a valve plate 81, a middle shaft 82 and a telescopic spring 83.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1-4, a combined screw submersible pump includes a first casing 1, a second casing 2 and a third casing 3 which are connected in sequence, the first casing 1 and the second casing 2 are connected through a connecting portion, the third casing 3 and the second casing 2 are also connected through a connecting portion, a driving motor 4 is fixedly installed in the first casing 1, the driving motor 4 is connected with a screw 5 through a coupler, a sealing gasket is arranged in the first casing 1, and the sealing gasket is arranged on the outer wall of the screw 5, so that water can be effectively prevented from entering the first casing 1; the screw 5 penetrates through the second shell 2 and the third shell 3, the second shell 2 is provided with a water inlet 21, the outer wall of the screw 5 in the third shell 3 is uniformly provided with a plurality of pressurizing assemblies 6, and the tail end of the third shell 3 is provided with a water outlet 7; wherein, a corresponding number of pressurizing assemblies 6 can be arranged according to actual conditions.

Referring to fig. 1, the water inlet holes 21 on the second casing 2 are uniformly arranged along the circumferential direction of the second casing 2, and the inner wall of the second casing 2 is provided with a filter screen 22.

When the water-saving type water dispenser works, water enters the second shell 2 and the third shell 3 from the water inlet 21, is pressurized by the pressurizing assembly 6 and is discharged from the water outlet 7.

Referring to fig. 2-3, the pressurizing assembly 6 includes an impeller 61, the blades of the impeller 61 are of a reverse bending type, a diffusion channel 610 is formed between two adjacent blades, a mounting portion 62 matched with the screw 5 is arranged in the middle of the impeller 61, and the pressurizing assembly 6 is mounted on the outer wall of the screw 5 through the mounting portion 62; one side of the impeller 61, provided with the blades, is a front surface, an outer cover 63 is fixed on the front surface of the impeller 61, and a water inlet 64 is formed in the middle of the outer cover 63; a diffuser 65 is fixed to the back surface of the impeller 61.

Diffuser 65 comprises a casing 66, an intermediate plate 67 and a partition 68, the back of impeller 61 matching intermediate plate 67, casing 66 so that impeller 61 is inside casing 66 and conforms to intermediate plate 67; the middle plate 67 is uniformly provided with water through holes 69 along the circumferential direction, and the water through holes 69 are arranged along the edge of the middle plate 67; the middle plate 67 is uniformly provided with pages 68 far away from the side wall of the impeller 61, the pages 68 are matched with the blades of the impeller 61, a water collecting channel 680 is formed between two adjacent pages 68, and a through hole 670 matched with the screw 5 is arranged in the middle of the middle plate 67.

Referring to fig. 4, in a specific operation, water enters the third casing 3, enters the diffusion channel 610 of the impeller 61 through the water inlet 64 of the outer cover 63, is radially sprayed out under the action of centrifugal force, and at the same time, the water obtains kinetic energy and pressure energy, and then the sprayed water is intercepted by the outer shell 66, passes through the water through hole 69 from the gap between the impeller 61 and the intermediate plate 67 and the outer shell 66, enters the side of the diffuser 65 provided with the pages 68 and enters the water collecting channel 680, and the diffuser 65 collects the inflowing water turning screw 5 and prepares for the water to enter the next pressurizing assembly 6; the water inlet 64 in the next plenum assembly 6 is connected to the outlet of the diffuser 65; this structure allows water to be pressurized at a certain water pressure every time it passes through one pressurizing assembly 6, thereby forming a relatively stable pressure difference.

A check valve 8 is arranged in the third shell 3, and the check valve 8 is positioned between the water outlet 7 and the pressurizing assembly 6; the check valve 8 comprises a valve plate 81, a middle shaft 82 and a telescopic spring 83, wherein the telescopic spring 83 is sleeved on the outer wall of the middle shaft 82.

A plurality of first limiting blocks 31 and a plurality of second limiting blocks 32 are arranged on the inner wall of the third shell 3, and the first limiting blocks 31 and the second limiting blocks 32 are uniformly arranged along the circumferential direction of the inner wall of the third shell 3; the valve plate 81 is movably installed between the first stopper 31 and the second stopper 32.

The inner wall of the third shell 3 is provided with a plurality of pressure levers 33 at positions close to the water outlet 7, the pressure levers 33 are uniformly arranged along the circumferential direction of the inner wall of the third shell 3, and the extension springs 83 are arranged between the pressure levers 33 and the valve plate 81.

At specific during operation, water through pressure boost subassembly 6 is extracted through check valve 8 at last, wherein check valve 8 has effectually alleviateed the problem of water hammer, and this structure is favorable to diving to send out and is used in high-altitude area.

The utility model discloses in be provided with pressure boost subassembly 6, can set up the pressure boost subassembly 6 of corresponding quantity according to actual conditions, mutually support between each part in the pressure boost subassembly 6 for water is every through a pressure boost subassembly 6 with regard to the certain water pressure of pressure boost, thereby forms the pressure differential of relatively stable, solves current immersible pump and appears the unstable problem of pressure when using.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a modular screw rod immersible pump, includes first casing (1), second casing (2) and third casing (3) that connect gradually, its characterized in that: a driving motor (4) is fixedly installed in the first shell (1), the driving motor (4) is connected with a screw rod (5) through a coupler, the screw rod (5) penetrates through the second shell (2) and the third shell (3), the second shell (2) is provided with a water inlet hole (21), the outer wall of the screw rod (5) in the third shell (3) is uniformly provided with a plurality of pressurizing components (6), and the tail end of the third shell (3) is provided with a water outlet (7);

the pressurizing assembly (6) comprises an impeller (61), a mounting part (62) matched with the screw rod (5) is arranged in the middle of the impeller (61), an outer cover (63) is fixed on the front surface of the impeller (61), and a water inlet (64) is arranged in the middle of the outer cover (63); a diffuser (65) is fixed on the back surface of the impeller (61);

the diffuser (65) comprises a shell (66), a middle plate (67) and a partition (68), the back of the impeller (61) is matched with the middle plate (67) and the shell (66), water through holes (69) are uniformly formed in the middle plate (67) along the circumferential direction of the middle plate, and the water through holes (69) are formed along the edge of the middle plate (67); the middle plate (67) is away from the side wall of the impeller (61) and is uniformly provided with the dividing pages (68), and a water collecting channel (680) is formed between every two adjacent dividing pages (68); the middle of the middle plate (67) is provided with a through hole (670) matched with the screw rod (5).

2. The combination screw submersible pump of claim 1, wherein: the third casing (3) is internally provided with a check valve (8), and the check valve (8) is positioned between the water outlet (7) and the pressurizing assembly (6).

3. The combination screw submersible pump of claim 2, wherein: the check valve (8) comprises a valve plate (81), a middle shaft (82) and a telescopic spring (83), wherein the telescopic spring (83) is sleeved on the outer wall of the middle shaft (82).

4. The combination screw submersible pump of claim 3, wherein: the inner wall of third casing (3) is equipped with first stopper (31) and second stopper (32), first stopper (31) with second stopper (32) are all followed third casing (3) inner wall circumference direction evenly is provided with a plurality of.

5. The combination screw submersible pump of claim 4, wherein: the valve plate (81) is movably arranged between the first limiting block (31) and the second limiting block (32).

6. The combination screw submersible pump of claim 5, wherein: the inner wall of third casing (3) is close to the position of delivery port (7) is equipped with depression bar (33), depression bar (33) are followed third casing (3) inner wall circumferential direction evenly is provided with a plurality of, expanding spring (83) are located depression bar (33) with between valve block (81).

7. The combination screw submersible pump of claim 6, wherein: the water inlet (21) on the second shell (2) is along the second shell (2) is evenly arranged in the circumferential direction, and the inner wall of the second shell (2) is provided with a filter screen (22).

8. The combination screw submersible pump of claim 7, wherein: the blades of the impeller (61) are of reverse bending type, a diffusion channel (610) is formed between two adjacent blades, and the paging (68) is matched with the blades of the impeller (61).