CN213870442U

CN213870442U - Pool cleaning spiral suction system

Info

Publication number: CN213870442U
Application number: CN202022811105.9U
Authority: CN
Inventors: 仲鹏
Original assignee: Qingdao Ruishun Taihe Pump Co ltd
Current assignee: Qingdao Ruishun Taihe Pump Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-08-03
Anticipated expiration: 2030-11-27

Abstract

The utility model provides a spiral suction system for cleaning pool, which comprises a spiral centrifugal pump and a bottom barrel; the bottom of the spiral centrifugal pump is provided with a horn-shaped suction inlet, and the diameter of the bottom end of the horn-shaped suction inlet is larger than that of the top end of the horn-shaped suction inlet; the spiral centrifugal pump is arranged in the bottom barrel in a use state, the bottom end of the horn-shaped suction inlet is away from the bottom of the bottom barrel by a first distance, and the outer edge of the horn-shaped suction inlet is away from the side wall of the bottom barrel by a second distance. The system is innovatively provided with the bottom barrel, the horn-shaped suction inlets and the bottom barrel with different size standards are configured according to the size of the suction inlet and the height of the lift of the screw centrifugal pump, and a specific fit clearance is adopted, so that all fluid in the bottom barrel can be sucked in a spiral manner, and the pool cleaning effect is realized.

Description

Pool cleaning spiral suction system

Technical Field

The utility model relates to a water pump field especially relates to a clear pond spiral suction system.

Background

The pump is used as a power device in the water treatment process, plays roles in lifting and conveying sewage and metering medicaments, and has self-evident importance. In some special application fields, such as sewage, medicament, chemical industry and petroleum, common submersible pumps can pump water to the position of a suction inlet at the bottom of the pump at most, and can not be pumped completely because the common submersible pumps do not contact with fluid, and the bottom of the common submersible pump always has residual fluid. For example, in the field of sewage treatment, when an integrated pump station or pump pit is used, water is always stored at the bottom of the integrated pump station or pump pit, and if odor or toxic gas exists in the stored water, great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a clear pond spiral suction system to realize clear pond effect.

The technical scheme of the utility model as follows:

the spiral suction system comprises a spiral centrifugal pump and a bottom barrel; the bottom of the spiral centrifugal pump is provided with a horn-shaped suction inlet, and the diameter of the bottom end of the horn-shaped suction inlet is larger than that of the top end of the horn-shaped suction inlet; the spiral centrifugal pump is arranged in the bottom barrel in a use state, the bottom end of the horn-shaped suction inlet is away from the bottom of the bottom barrel by a first distance, and the outer edge of the horn-shaped suction inlet is away from the side wall of the bottom barrel by a second distance.

Preferably, the side wall of the bottom cylinder is provided with at least one pre-spiral channel extending from the top end to the bottom end, so that the fluid entering the bottom cylinder is in a swirling state.

Preferably, an upper concave flow guide column is arranged at the center of the bottom cylinder.

Preferably, one side of the middle upper portion of the sidewall of the bottom cartridge is protruded outward, and the inlet of the pre-spiral channel is located on the protruded sidewall.

Preferably, the screw centrifugal pump comprises a volute and an impeller arranged in the volute, wherein a suction port for fluid to enter is formed in the bottom end of the volute, and an outlet is formed in the other end of the volute, which is adjacent to the suction port; the impeller comprises an impeller shaft and blades spirally arranged on the outer peripheral surface of the impeller shaft; the lower end of the impeller is close to the suction port, the upper end of the impeller is close to the outlet, and the diameters of the impeller shaft and the blades are gradually increased along the direction from the suction port to the outlet.

Preferably, the blade comprises: the tip leading-in part is positioned at the lower end of the impeller, and the end part of the tip leading-in part is in a tip shape and gradually becomes larger along the spiral extending direction; the middle flow guide part is positioned at the middle end of the impeller; a centrifugal lead-out part positioned at the upper end of the impeller.

Preferably, the vanes are inclined downward from the impeller shaft side toward the outer peripheral side.

Preferably, the outlet direction of the centrifugal lead-out portion of the blade is toward the outlet.

Preferably, the direction of the tip introduction portion of the impeller is opposite to the direction of the centrifugal lead-out portion.

Preferably, the impeller shaft has a diameter gradually increasing from a lower end to an upper end thereof.

Preferably, the first distance between the bottom end of the trumpet-shaped suction port and the bottom of the bottom cylinder is 80 mm; the second distance between the outer edge of the horn-shaped suction inlet and the side wall of the bottom cylinder is 85 mm; the suction caliber of the spiral centrifugal pump is 100 mm; the diameter of the bottom cylinder is 570 mm; the maximum diameter of the bottom end of the trumpet-shaped suction inlet is 400 mm.

The embodiment of the utility model provides a clear pond spiral suction system, this system have creatively add end section of thick bamboo, according to helico-centrifugal pump's sunction inlet size and lift height, dispose not horn shape sunction inlet and end section of thick bamboo of unidimensional standard to adopt specific fit clearance, make whole fluid in the end section of thick bamboo can the spiral suction, realize clear pond effect, can not preserve surplus fluid.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the following detailed description.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention. For convenience in illustrating and describing some portions of the present invention, corresponding parts of the drawings may be exaggerated, i.e., may be larger, relative to other components in an exemplary device actually manufactured according to the present invention. In the drawings:

fig. 1 is a schematic front structural view of a spiral suction system for cleaning pool according to an embodiment of the present invention.

Fig. 2 is a schematic side view of an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a top view in an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a volute of a centrifugal screw pump according to an embodiment of the present invention.

Fig. 5 is a structural schematic diagram of an impeller of a screw centrifugal pump according to an embodiment of the present invention.

Fig. 6 is a structural schematic diagram of an impeller of a screw centrifugal pump according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and/or process steps that are closely related to the solution according to the invention are shown in the drawings, while other details that are not relevant to the invention are omitted.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.

It is also noted herein that the term "coupled," if not specifically stated, may refer herein to not only a direct connection, but also an indirect connection in which an intermediate is present.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts, or the same or similar steps.

For realizing not depositing water after pump station or integration pump station bottom draw water, the utility model provides a clear pond spiral suction system to realize clear pond effect.

As shown in fig. 1 to 3, the screw suction system according to the embodiment of the present invention includes a screw centrifugal pump and a bottom cylinder 4. The bottom of the screw centrifugal pump is provided with a trumpet-shaped suction inlet 3, and the diameter of the bottom end of the trumpet-shaped suction inlet 3 is larger than that of the top end of the trumpet-shaped suction inlet 3. The screw centrifugal pump is arranged in the bottom barrel 4 in a use state, the bottom end of the trumpet-shaped suction port 3 is a first distance away from the bottom of the bottom barrel 4, and the outer edge of the trumpet-shaped suction port 3 is a second distance away from the side wall of the bottom barrel 4.

The embodiment of the utility model provides an in the spiral suction system has creatively designed end section of thick bamboo, according to helico-centrifugal pump's sunction inlet size and lift height, disposes the horn shape sunction inlet and end section of thick bamboo of different size standards to adopt specific fit clearance, make whole fluid in the end section of thick bamboo can the spiral suction, realize the clear pond effect, can not preserve surplus fluid.

As shown in fig. 3, the side wall of the bottom cylinder 4 is provided with at least one pre-spiral channel 41 extending from the top end to the bottom end, so that the fluid entering the bottom cylinder 4 is in a spiral flow state, the spiral suction direction of the spiral flow state fluid is the same as the spiral suction direction of the centrifugal screw pump, the fluid in the bottom cylinder can enter the pump in a spiral manner, and the pool cleaning effect can be achieved more easily. The main body of the bottom barrel 4 can be in a conical structure, and the diameter of the opening is gradually enlarged.

In one embodiment, the first distance between the bottom end of the trumpet-shaped suction port 3 and the bottom of the bottom cylinder 4 is 80 mm; the second distance between the outer edge of the trumpet-shaped suction port 3 and the side wall of the bottom cylinder 4 is 85 mm; the suction caliber of the spiral centrifugal pump is 100 mm; the diameter of the bottom cylinder 4 is 570 mm; the maximum diameter of the bottom end of the trumpet-shaped suction port 3 is 400 mm. The unit can be millimeter, centimeter, etc., the proportion can be adjusted properly, but the gap between the trumpet-shaped suction inlet 3 and the bottom cylinder 4 is too large to clean the pool, and the residual medium at the bottom of the cylinder; the clearance is too small, the water pump is not enough to suck, and the normal work is influenced.

In some embodiments, as shown in fig. 1, the central position of the bottom tube 4 is provided with an upwardly concave guide pillar 41. The arrangement of the flow guide column 41 is beneficial to avoiding the middle position of the fluid in a rotational flow state, so that spiral fluid is more easily formed, and the fluid at the bottom of the cylinder is conveniently sucked into the pump cavity.

In some embodiments, as shown in fig. 1 and 3, one side of the middle upper portion of the sidewall of the base cartridge 4 protrudes outward, and the inlet of the pre-spiral channel 41 is located on the protruding sidewall. The spiral direction of the flow passage of the pre-spiral channel 41 is the same as the suction direction of the screw centrifugal pump, the fluid inlet of the pre-spiral channel 41 can be larger, and the bottom end of the pre-spiral channel 41 is close to the bottom end of the bottom barrel 4 and faces to the suction port position of the pre-spiral channel 41.

As shown in fig. 4 and 5, the screw centrifugal pump includes a volute 1 and an impeller 2 disposed in the volute 1, a bottom end of the volute 1 is provided with a suction port 11 into which a fluid enters, and the other end of the volute 1 adjacent to the suction port 11 is provided with an outlet 12. In this embodiment, the volute 1 is the casing of a screw centrifugal pump, and the rotation of the impeller 2 produces a screw propelling action on the liquid and a certain centrifugal action to convey the liquid from the suction port to the outlet port.

In an embodiment, as shown in fig. 5 and 6, fig. 5 shows the impeller 2 of the first embodiment, and fig. 6 shows the impeller 2 of the second embodiment, and the shapes of the impellers 2 of the two embodiments are slightly different. The impeller 2 includes an impeller shaft 21 and blades 22 spirally arranged on an outer circumferential surface of the impeller shaft 21.

The lower end of the impeller 2 is close to the suction port 11, the upper end of the impeller 2 is close to the outlet 12, and the diameters of the impeller shaft 21 and the blades 22 are gradually increased in the direction from the suction port 11 to the outlet 21. The impeller 2 is installed in the volute 1, and the impeller 2 is extended axially in a spiral curved surface at the front end of the suction port 11 from bottom to top to the position of the outlet 21. The blades 22 of the impeller 2 can act as a spiral part, lifting the liquid upwards; the impeller shaft 21 may serve as a centrifugal part for centrifugally throwing out the liquid.

In the above embodiment, the blade 22 includes: a tip introduction part 221 at a lower end of the impeller, a middle guide part 222 at a middle end of the impeller, and a centrifugal lead-out part 223 at an upper end of the impeller. Wherein, the end of the pointed leading-in part 221 is pointed or sickle-shaped, and gradually becomes larger along the spiral extending direction; the tip of the pointed lead-in 221 extends substantially in a direction parallel to the opening end face and then rises at a spiral angle. The helical shape of the blades 22 may be a helical line with a constant pitch, or a helical angle of a helical line with a non-constant pitch, the helical angle can be gradually increased from bottom to top, and the helical angle can be between 10 degrees and 45 degrees. Preferably, the helix angle of the blade 2 from the tip introduction part 221 to the centrifugal derivation part 223 gradually increases, and does not exceed 40 °. The vanes 2 direct the flow and contained matter near the impeller shaft 21 and then propel it axially by a screw action, providing good pumping capacity and lower cavitation margin requirements.

The tip introduction part 221 has a tip structure that can suck the liquid containing bubbles and other fibrous dirt, sludge and solid particles into the volute, and the tip structure of the tip introduction part 221 bears a small water resistance; the tip of the tip introduction part 221 is also advantageous in that it can withstand a smaller water resistance substantially in a direction parallel to the opening end face, has a gentle flow velocity, low shear and low turbulence, and can softly suck liquid from the inlet, thereby saving energy, causing less damage to the blade surface, and the screw centrifugal pump can still normally operate and pump liquid containing gas even if a local cavitation phenomenon occurs.

The arrangement of the middle diversion part 222 and the centrifugal derivation part 223 is beneficial to forming negative pressure above the screw centrifugal pump and improving the adsorption force of the screw centrifugal pump.

As shown in fig. 5 or 6, the blades 22 are inclined downward from the impeller shaft 21 side to the outer periphery side, and this structure can have a larger contact area for the liquid lifted upward, so that the liquid has an upward lifting force, and it is also beneficial to form a negative pressure in the pump and increase the suction force of the screw centrifugal pump.

Preferably, the outlet direction of the centrifugal lead-out portion 223 of the vane 22 is directed toward the outlet 12. Further preferably, the direction of the tip introduction portion of the impeller is opposite to the direction of the centrifugal lead-out portion. The inlet side of the sharp-pointed leading-in part 221 and the outlet side of the centrifugal leading-out part 223 are arranged in a staggered mode, the sharp-pointed leading-in part 221 and the centrifugal leading-out part 223 do not overlap in the vertical projection direction, mutual interference between leading-in and leading-out is reduced, and dredging efficiency is improved.

Preferably, the impeller shaft 21 has a diameter gradually increasing from the lower end to the upper end thereof. The impeller shaft 21 of the vane 22 converts energy into pressure energy, and after the liquid flow enters the volute, the liquid flow is discharged from an outlet on the volute due to the action of a centrifugal part.

The length of the impeller of the embodiment of the utility model is 3-5 times of that of the traditional single-channel impeller for conveying solids. Thus, energy is gradually transferred to the liquid along the entire length of the impeller, resulting in a lower pressure at the impeller surface. The low energy gradient and the large curvature of the blade keep the flow state of the water flow unchanged in the whole process of passing through the impeller, the flow speed is gentle, and the low shear and the low disturbance are realized. This unique design delivers the liquid gently from the inlet to the outlet, thereby saving energy with very little disruption to the vane surfaces. Even if local cavitation occurs, the pump can still work normally, so that liquid containing gas can be pumped.

In some embodiments, the blades 22 of the impeller 2 are provided with 1 to 4 blades. The suction port at the bottom end of the volute 1 is conical. In some embodiments, the back and/or front of the blades 22 are provided with reverse thread grooves to avoid foreign material from being entangled, clogged, and damaged.

In some embodiments, the inner side of the volute 1 is provided with a replaceable wear-resistant lining, which is an ideal choice in the application case of severe wear, and after the wear occurs, only one lining needs to be replaced without replacing the whole shell, which is convenient and economical. The upper side of the volute 1 is provided with a motor for driving the impeller 2 to rotate.

The utility model discloses centrifugal screw pump has carried out the innovative design to impeller structure, the tip leading-in portion tip is roughly followed with the parallel direction of opening terminal surface, the impeller has more gentle helical blade, also has longer runner, the favourable less water resistance that bears, the velocity of flow is mild, the low shear, low disturbance can inhale liquid from the import softly, thereby energy saving, damage to the blade surface is less, even if produce local cavitation phenomenon, centrifugal screw pump still can normally work, but the pump send contains gaseous liquid.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pool cleaning spiral suction system is characterized by comprising a spiral centrifugal pump and a bottom barrel;

the bottom of the spiral centrifugal pump is provided with a horn-shaped suction inlet, and the diameter of the bottom end of the horn-shaped suction inlet is larger than that of the top end of the horn-shaped suction inlet;

the spiral centrifugal pump is arranged in the bottom barrel in a use state, the bottom end of the horn-shaped suction inlet is away from the bottom of the bottom barrel by a first distance, and the outer edge of the horn-shaped suction inlet is away from the side wall of the bottom barrel by a second distance.

2. The pool cleaning spiral suction system of claim 1, wherein the side wall of the bottom cylinder is provided with at least one pre-spiral channel extending from a top end to a bottom end to impart a swirling flow to the fluid entering the bottom cylinder.

3. The spiral suction system for clearing pool according to claim 2, wherein the center position of said bottom cylinder is provided with an upper concave diversion column.

4. The pool cleaning spiral suction system of claim 2, wherein one side of the middle upper part of the side wall of the bottom cylinder is protruded outwards, and the inlet of the pre-spiral channel is positioned on the protruded side wall.

5. The spiral suction system for cleaning pool according to claim 1, wherein said spiral centrifugal pump comprises a volute and an impeller arranged in said volute, a bottom end of said volute is provided with a suction port for fluid to enter, and the other end of said volute adjacent to said suction port is provided with an outlet;

the impeller comprises an impeller shaft and blades spirally arranged on the outer peripheral surface of the impeller shaft;

the lower end of the impeller is close to the suction port, the upper end of the impeller is close to the outlet, and the diameters of the impeller shaft and the blades are gradually increased along the direction from the suction port to the outlet;

wherein the blade includes:

the tip leading-in part is positioned at the lower end of the impeller, and the end part of the tip leading-in part is in a tip shape and gradually becomes larger along the spiral extending direction;

the middle flow guide part is positioned at the middle end of the impeller;

a centrifugal lead-out part positioned at the upper end of the impeller.

6. The pool cleaning spiral suction system of claim 5, wherein the vanes are inclined first downward from the impeller shaft side toward the outer peripheral side.

7. A pond cleaning spiral intake system according to claim 5, wherein the outlet of the centrifugal lead-out of the blade is directed towards the outlet.

8. The pool cleaning spiral suction system of claim 5, wherein the pointed lead-in of the impeller is oriented in a direction opposite to the centrifugal lead-out.

9. The pool cleaning spiral intake system of claim 5, wherein the impeller shaft has a progressively larger diameter from its lower end to its upper end.

10. The pool cleaning spiral suction system of claim 1,

the first distance between the bottom end of the horn-shaped suction inlet and the bottom of the bottom cylinder is 80 mm;

the second distance between the outer edge of the horn-shaped suction inlet and the side wall of the bottom cylinder is 85 mm;

the suction caliber of the spiral centrifugal pump is 100 mm;

the diameter of the bottom cylinder is 570 mm;

the maximum diameter of the bottom end of the trumpet-shaped suction inlet is 400 mm.