CN218953575U - Vertical single-stage centrifugal water pump - Google Patents

Abstract

The utility model discloses a vertical single-stage centrifugal water pump which comprises a bottom plate, a support seat and a fixing seat, wherein one end of the fixing seat, which is far away from the outer wall of the bottom plate, is fixedly provided with a pump shell main body, the top end of the pump shell main body is provided with a hollow seat, the top end of the hollow seat is fixedly connected with the bottom end of the support seat, the outer wall of one side of the pump shell main body is provided with a liquid outlet pipe, the outer wall of the other side of the pump shell main body is provided with a liquid inlet pipe, the port positions of the liquid outlet pipe and the liquid inlet pipe are in a vertical structure, the inside of the pump shell main body is provided with a water phase cavity, a pump wheel is arranged at the water phase cavity, and the top of the support seat is provided with a rotary driving part for driving the pump wheel to rotate. According to the utility model, after the water phase and dirt enter the filter cartridge, the water phase and the dirt pass through the turbulent flow hollowed-out part and the rest space, the arc-shaped turbulent flow cover and the turbulent flow hollowed-out part are used for turbulent flow of the water phase, so that the impact force of the dirt on the filter screen is reduced, and the working loss of the filter screen and the pump wheel is further reduced.

Description

Vertical single-stage centrifugal water pump

Technical Field

The utility model relates to the technical field of centrifugal water pumps, in particular to a vertical single-stage centrifugal water pump.

Background

Centrifugal pumps are a very widely used type of water pump. The working principle is as follows: by means of the impeller rotating at high speed, the liquid obtains kinetic energy under the action of inertial centrifugal force to raise pressure. Before the water pump works, the pump body and the water inlet pipe must be filled with water. When the impeller rotates, the blades promote water to rotate very fast, the rotating water flies out of the impeller under the action of centrifugal force, after the water in the pump is thrown out, a vacuum area is formed at the central part of the impeller, and the water of the water source is pressed into the water inlet pipe through the pipe network under the action of atmospheric pressure. Like this the circulation is not, just can realize drawing water in succession, current vertical single-stage centrifugal water pump can set up filter equipment at the inlet port of water pump, utilize filter equipment to prevent that impurity in the water phase from causing the jam to the water pump, but under the operating mode of centrifugal water pump high-power operation, rivers and dirt high-speed impact on the filter screen, lead to the filter screen to appear damaging easily, be difficult to play the function of filtering impurity again, just need changing filter equipment at this moment, bring trouble for staff's daily use

Disclosure of Invention

The utility model aims to provide a vertical single-stage centrifugal water pump, which aims to solve the problem that the filter screen component is easily damaged by water phase and dirt flowing at high speed under the high-load working condition of the vertical single-stage centrifugal water pump in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a vertical single-stage centrifugal water pump, includes bottom plate, support seat and fixing base, the one end that the bottom plate outer wall was kept away from to the fixing base is fixed with the pump case main part, and the hollow seat is installed on the top of pump case main part, the top of hollow seat and the bottom fixed connection of support seat, be provided with the drain pipe on the outer wall of pump case main part one side, be provided with the feed liquor pipe on the opposite side outer wall of pump case main part, the port position of drain pipe and feed liquor pipe is vertical structure, the inside of pump case main part is provided with the aqueous phase chamber, and the pump impeller is installed to aqueous phase chamber department, the rotary driving spare that drives pump impeller pivoted is installed at the top of support seat, the cartridge filter is installed through vice ring flange to the top of feed liquor pipe, two sets of filter screens are installed to the inside one end of cartridge filter, install a plurality of sets of detouring structures on the cartridge filter inner wall of filter screen top.

Preferably, the rotary driving part comprises a direct-drive motor fixed at the top of the support seat, a main shaft is installed at the output end of the direct-drive motor, and the bottom end of the main shaft extends to the inside of the pump shell main body in a sealing manner and is fixedly connected with the center point of the pump wheel.

Preferably, the streaming structure comprises a hinge seat fixed on the inner wall of the filter cylinder, an arc-shaped spoiler is hinged on the outer wall of the hinge seat, a spring is mounted on the inner wall of the filter cylinder, and the top end of the spring is fixedly connected with the outer wall of the arc-shaped spoiler.

Preferably, a connecting pipe is installed at the top end of the filter cartridge, and a main flange is installed at the top end of the connecting pipe.

Preferably, a hoop for sealing is arranged at the joint of the connecting pipe and the filter cartridge.

Preferably, the surface of the arc-shaped spoiler cover is provided with a spoiler hollowed-out part.

Compared with the prior art, the utility model has the beneficial effects that: this vertical single-stage centrifugal water pump is through being provided with the structure of mutually supporting such as pump impeller and arc vortex cover, drive main shaft in proper order, the pump impeller rotates, when the pump impeller is high-speed rotatory, the central part of pump impeller forms the vacuum area, aqueous phase water is under the effect of atmospheric pressure, the water phase chamber is entered into through the connecting pipe, the cartridge filter, the feed liquor pipe, and discharge through the drain pipe, after high-speed circulation aqueous phase and dirt enter into the cartridge filter, then aqueous phase, dirt passes through from vortex fretwork portion department and spare space department, through arc vortex cover, vortex fretwork portion is to the aqueous phase vortex, reduce the impact dynamics of dirt to the filter screen, and then reduce the operating loss of filter cartridge and pump body's life, reduce the maintenance of the pump body, it is convenient to provide for the staff.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a schematic top view of a pump housing body of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 4 is a schematic top view of a filter cartridge according to the present utility model;

in the figure: 1. a bottom plate; 2. a support seat; 3. a direct drive motor; 4. a pump housing main body; 401. a liquid outlet pipe; 402. a water phase chamber; 403. a liquid inlet pipe; 5. a fixing seat; 6. a hollow base; 7. a main shaft; 701. a pump wheel; 8. an auxiliary flange plate; 9. a filter cartridge; 10. a main flange; 11. a connecting pipe; 12. a hoop; 13. a filter screen; 14. a hinge base; 15. arc spoiler cover; 16. turbulence hollowed-out parts; 17. and (3) a spring.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the utility model provides a vertical single-stage centrifugal water pump, including bottom plate 1, a support seat 2 and fixing base 5, the one end that bottom plate 1 outer wall was kept away from to fixing base 5 is fixed with pump case main part 4, hollow seat 6 is installed on the top of pump case main part 4, the top of hollow seat 6 and the bottom fixed connection of support seat 2, be provided with drain pipe 401 on the outer wall of pump case main part 4 one side, be provided with feed liquor pipe 403 on the opposite side outer wall of pump case main part 4, the port position of drain pipe 401 and feed liquor pipe 403 is vertical structure, the tip of drain pipe 401, feed liquor pipe 403 is the right angle and distributes, can be applied in pipe-line's corner supply department, it is convenient to provide for staff's use;

the inside of the pump shell main body 4 is provided with an aqueous phase cavity 402, a pump impeller 701 is arranged at the aqueous phase cavity 402, the top of the bracket seat 2 is provided with a rotary driving part for driving the pump impeller 701 to rotate, the rotary driving part comprises a direct-drive motor 3 fixed at the top of the bracket seat 2, the output end of the direct-drive motor 3 is provided with a main shaft 7, the bottom end of the main shaft 7 extends to the inside of the pump shell main body 4 in a sealing way and is fixedly connected with the center point of the pump impeller 701, a connecting pipe 11 is connected to an external water source, when the water phase needs to be pumped, the direct-drive motor 3 is electrified, and the main shaft 7 and the pump impeller 701 are sequentially driven to rotate by the direct-drive motor 3;

the top end of the liquid inlet pipe 403 is provided with a filter cartridge 9 through the auxiliary flange 8, one end inside the filter cartridge 9 is provided with two groups of filter screens 13, dirt carried in water phase is intercepted through the filter screens 13, the dirt is prevented from directly entering the pump shell main body 4, and the pump wheel 701 inside the filter cartridge is effectively protected;

a plurality of groups of flow-around structures are arranged on the inner wall of the filter cylinder 9 above the filter screen 13, when the pump wheel 701 rotates at a high speed, a vacuum area is formed at the central part of the pump wheel 701, and water phase water sequentially enters the water phase cavity 402 through the connecting pipe 11, the filter cylinder 9 and the liquid inlet pipe 403 under the action of atmospheric pressure and is discharged through the liquid outlet pipe 401, so that the pumping of the water phase is completed;

the flow-around structure comprises a hinged seat 14 fixed on the inner wall of the filter cartridge 9, an arc-shaped turbulence cover 15 is hinged on the outer wall of the hinged seat 14, and a turbulence hollow-out part 16 is arranged on the surface of the arc-shaped turbulence cover 15;

the inner wall of the filter cylinder 9 is provided with a spring 17, the top end of the spring 17 is fixedly connected with the outer wall of the arc-shaped spoiler 15, and the water phase impact force is in direct proportion to the compression degree of the spring 17;

the water phase and dirt which flow at high speed enter the filter cartridge 9, the water phase and dirt which flow at high speed firstly impact on the arc-shaped spoiler 15, and the arc-shaped spoiler 15 rotates towards the inner wall of the filter cartridge 9 by taking the hinging seat 14 as the center of a circle because the arc-shaped spoiler 15 is impacted by the water phase, so that the spring 17 is in a compressed state;

the water phase and the dirt pass through the turbulence hollowed-out part 16 and other gaps, the arc-shaped turbulence hood 15 and the turbulence hollowed-out part 16 are used for turbulence the water phase and the dirt, so that the impact force of the dirt on the filter screen 13 is reduced, the working loss of the filter screen 13 is reduced, the service lives of the filter cartridge 9 and the pump body are prolonged, the overhaul and maintenance frequency of the pump body is reduced, and convenience is provided for workers;

the connecting pipe 11 is installed on the top of cartridge filter 9, and main ring flange 10 is installed on the top of connecting pipe 11, and the staple bolt 12 that is used for sealedly is installed to the interface department of connecting pipe 11 and cartridge filter 9, and after the phenomenon of jam appears in cartridge filter 9, disconnection cartridge filter 9 and feed liquor pipe 403 tip, i.e. sub-ring flange 8 is detached from the port department of feed liquor pipe 403, and cartridge filter 9 after the dismantlement is changed or is cleared up.

This embodiment is when using, at first be connected to outside water source with connecting pipe 11, when the water phase of needs pumping, make direct-drive motor 3 circular telegram, by direct-drive motor 3 drive main shaft 7 in proper order, the pump impeller 701 rotates, when the pump impeller 701 high-speed is rotatory, the central part of pump impeller 701 forms the vacuum area, water phase water is under the effect of atmospheric pressure, loop through connecting pipe 11 in the water phase chamber 402, cartridge filter 9, feed liquor pipe 403, and discharge through drain pipe 401, and then accomplish the pumping of water phase, high-speed circulating water phase and dirt enter into cartridge filter 9, high-speed circulating water phase and dirt first strike this moment on arc spoiler 15, because of arc spoiler 15 receives the impact of water phase, arc spoiler 15 uses articulated seat 14 as the centre of a circle towards the inner wall direction of cartridge filter 9, and then spring 17 is compression state, water phase impact force and spring 17's compression degree are proportional, this moment, dirt passes through from vortex hollow 16 and other space departments, through arc spoiler 15, hollow 16 carries out the vortex to water phase, dirt, reduce the impact force of dirt to 13, reduce the filter screen's impact force, reduce 13, thereby the service life of filter screen, the pump body is convenient for the pump body, the maintenance personnel is provided.

Claims (6)

1. A vertical single-stage centrifugal water pump is characterized in that: including bottom plate (1), support seat (2) and fixing base (5), the one end that bottom plate (1) outer wall was kept away from to fixing base (5) is fixed with pump case main part (4), and hollow seat (6) are installed on the top of pump case main part (4), the bottom fixed connection of hollow seat (6) and support seat (2), be provided with drain pipe (401) on the outer wall of pump case main part (4) one side, be provided with feed liquor pipe (403) on the opposite side outer wall of pump case main part (4), the port position of drain pipe (401) and feed liquor pipe (403) is vertical structure, the inside of pump case main part (4) is provided with water phase chamber (402), and water phase chamber (402) department installs pump impeller (701), the rotatory driving piece that drives pump impeller (701) pivoted is installed at the top of support seat (2), filter cartridge (9) are installed through auxiliary ring flange (8) on the top of feed liquor pipe (403), two sets of filter screen (13) are installed to filter screen winding structures on filter cartridge (9) inner wall above filter cartridge (13).

2. A vertical single stage centrifugal water pump according to claim 1, wherein: the rotary driving part comprises a direct-drive motor (3) fixed at the top of the support seat (2), a main shaft (7) is installed at the output end of the direct-drive motor (3), and the bottom end of the main shaft (7) extends to the inside of the pump shell main body (4) in a sealing mode and is fixedly connected with the center point of the pump wheel (701).

3. A vertical single stage centrifugal water pump according to claim 1, wherein: the flow-around structure comprises a hinge seat (14) fixed on the inner wall of the filter cylinder (9), an arc-shaped spoiler (15) is hinged on the outer wall of the hinge seat (14), a spring (17) is mounted on the inner wall of the filter cylinder (9), and the top end of the spring (17) is fixedly connected with the outer wall of the arc-shaped spoiler (15).

4. A vertical single stage centrifugal water pump according to claim 1, wherein: a connecting pipe (11) is arranged at the top end of the filter cartridge (9), and a main flange plate (10) is arranged at the top end of the connecting pipe (11).

5. The vertical single-stage centrifugal water pump according to claim 4, wherein: and a hoop (12) for sealing is arranged at the joint of the connecting pipe (11) and the filter cartridge (9).

6. A vertical single stage centrifugal water pump according to claim 3, wherein: the surface of the arc-shaped spoiler cover (15) is provided with a spoiler hollowed-out part (16).

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