Suction inlet device of pump

Abstract

The utility model provides a suction inlet device of a pump. The suction inlet device comprises a connecting cylinder; the guide cylinder is arranged in the connecting cylinder, and a first gap is formed between the bottom of the guide cylinder and the inner bottom of the connecting cylinder; the inner cylinder body is arranged in the guide cylinder, the bottom of the inner cylinder body is connected with the inner bottom of the connecting cylinder, and a second gap is formed between the top of the inner cylinder body and the inner top of the connecting cylinder; a first channel is formed between the outer side wall of the guide cylinder and the inner side wall of the connecting cylinder; during extraction, large-particle impurities can be effectively blocked through the arranged filter screen, an impeller of the pump body is prevented from being damaged, the service life of the submerged pump is prolonged, meanwhile, vortexes are prevented from being generated on a wave surface when the submerged pump works, and organic waste liquid is stably extracted out; by arranging the guide cylinder, the inner cylinder body and the filter screen, vortex is prevented from being generated on a wave surface in the process of extracting the organic waste liquid through the submerged pump, and the organic waste liquid is stably extracted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of submersible pump, in particular to a pump suction inlet device. BACKGROUND

[0002] The submersible pump is a positive pressure delivery vertical pump, which can effectively solve the problems of air resistance and cavitation, and the explosion-proof level of the delivered material determines that the submersible pump product has different structures, working principles, classifications, application ranges, product advantages and disadvantages and operation modes, which can be simply divided into two categories of traditional submersible pump and new type submersible pump.

[0003] In the process of extracting organic waste liquid by the submersible pump, vortex is often generated, which affects the extraction efficiency and use effect, therefore, the utility model provides a pump suction inlet device for avoiding vortex generated by wave surface and stably extracting organic waste liquid. UTILITY MODEL CONTENTS

[0004] In order to solve the above problems, the utility model provides a pump suction inlet device to solve the problems existing in the prior art.

[0005] In order to achieve the above purpose, the utility model provides a pump suction inlet device, which comprises a connecting cylinder, a flow guide cylinder arranged in the connecting cylinder, a first gap formed between the bottom of the flow guide cylinder and the inner bottom of the connecting cylinder, an inner cylinder body arranged in the flow guide cylinder, a second gap formed between the top of the inner cylinder body and the inner top of the connecting cylinder, a plurality of inlets formed on the outer wall of the connecting cylinder, the inlet being communicated with the first channel, a transmission rod protection cylinder and a liquid discharge pipe connected to the top of the connecting cylinder through a locking clamp, and the top of the liquid discharge pipe being connected with a submersible pump.

[0006] Further, a first channel is formed between the outer side wall of the flow guide cylinder and the inner side wall of the connecting cylinder, a second channel is formed between the inner side wall of the flow guide cylinder and the outer side wall of the inner cylinder body, and the first channel is communicated with the second channel through the first gap.

[0007] Further, the bottom of the inner cylinder body is provided with a base, and the bottom of the base is connected with the inner bottom wall of the connecting cylinder.

[0008] Further, a flat plate is further included, the top of the flat plate is provided with a driving motor, the top of the transmission rod protection cylinder and the liquid discharge pipe all penetrates the flat plate, the bottom of the transmission rod protection cylinder is connected with a pump body, the bottom of the liquid discharge pipe is communicated with the pump body, the output end of the driving motor is connected with a rotating shaft, and the bottom of the rotating shaft extends to the inside of the pump body and is provided with a plurality of fan blades.

[0009] Further, a filter screen is arranged in the connecting cylinder, and the filter screen is connected with the inlet.

[0010] Further, the inside of the connecting cylinder is provided with a flushing ring pipe, a plurality of flushing holes are formed on one side close to the filter screen, and the flushing ring pipe is communicated with a flushing pipe, one end of the flushing pipe extending to the outside of the connecting cylinder.

[0011] Further, the bottom of the connecting cylinder is provided with an interface.

[0012] Further, the top of the connecting cylinder is open, the top of the connecting cylinder is provided with a connecting disc, the locking disc is arranged on the sealing disc, and the locking hoop is arranged on the sealing disc.

[0013] Compared with the prior art, the beneficial effects of the utility model lie in:

[0014] I. During extraction, the filter screen can effectively block large particle impurities, avoid damage to the pump body impeller, prolong the service life of the submersible pump, and avoid vortex flow of the wave surface during operation of the submersible pump, so that the organic waste liquid is smoothly extracted. The flow guide cylinder, the inner cylinder and the filter screen can avoid vortex flow of the wave surface during extraction of the organic waste liquid by the submersible pump, and smoothly extract the organic waste liquid.

[0015] II. After the filter screen works for a long time and the surface accumulates impurities, the filter screen can be cleaned through the flushing ring pipe. Liquid is injected into the inside of the flushing ring pipe through the flushing pipe, and then sprayed onto the filter screen through the flushing holes on the flushing ring pipe. Under the action of high-pressure liquid, the impurities on the filter screen are washed away, thereby realizing the cleaning effect and effectively prolonging the service life of the filter screen.

[0016] In order to better understand and implement, the utility model is described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the first kind of three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 is the second kind of three-dimensional structure schematic diagram of the utility model;

[0019] Figure 3 is the inside structure schematic diagram of the connecting cylinder in the utility model;

[0020] Figure 4 is the plan view of the connecting cylinder in the utility model;

[0021] Figure 5 is the structure schematic diagram of the flushing ring pipe in the utility model.

[0022] In the figure: 1, connecting cylinder; 101, inlet; 2, locking clamp; 3, filter screen; 4, interface; 5, flushing pipe; 6, flushing ring pipe; 7, flow guide cylinder; 8, inner cylinder body; 9, flushing hole; 10, first channel; 11, second channel; 12, transmission rod protection cylinder; 13, liquid discharge pipe; 14, driving motor; 15, pump body; 16, base; 17, flat plate; 18, plugging disc; 19, connecting disc. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, objects and effects of the present application, the specific embodiments of the present application will be described with reference to the accompanying drawings, but the protection scope of the present application is not limited to the following description.

[0024] Referring to Figures 1-5 As shown in the figure, the inlet device of the pump comprises: a connecting cylinder 1; a flow guide cylinder 7 arranged inside the connecting cylinder 1, a first gap being formed between the bottom of the flow guide cylinder 7 and the inner bottom of the connecting cylinder 1; an inner cylinder body 8 arranged inside the flow guide cylinder 7, a second gap being formed between the top of the inner cylinder body 8 and the inner top of the connecting cylinder 1; a plurality of inlets 101 being formed on the outer wall of the connecting cylinder 1, the inlets 101 being communicated with the first channel 10, the top of the connecting cylinder 1 being connected with the transmission rod protection cylinder 12 and the liquid discharge pipe 13 through the locking clamp 2, the top of the liquid discharge pipe 13 being connected with the submersible pump, the first channel 10 being formed between the outer side wall of the flow guide cylinder 7 and the inner side wall of the connecting cylinder 1, the second channel 11 being formed between the inner side wall of the flow guide cylinder 7 and the outer side wall of the inner cylinder body 8, the first channel 10 being communicated with the second channel 11 through the first gap, the bottom of the inner cylinder body 8 being provided with a base 16, the bottom of the base 16 being connected with the inner bottom wall of the connecting cylinder 1, the inside of the connecting cylinder 1 being provided with a filter screen 3, the filter screen 3 being connected with the inlets 101.

[0025] The technical scheme provided by the present application, in use, first connects the device with the hydraulic pump through the locking clamp 2, then when the hydraulic pump starts to extract, the liquid enters the first channel 10 through the inlets 101 formed on the connecting cylinder 1, then enters the second channel 11 guided by the first channel 10, and finally enters the inside of the inner cylinder body 8, and then enters the inside of the submersible pump, realizing extraction, when extracting, the filter screen 3 arranged can effectively block large particle impurities, avoiding damage to the pump body impeller, prolonging the service life of the submersible pump, and avoiding vortex flow of the wave surface when the submersible pump works, stably extracting the organic waste liquid, the flow guide cylinder 7 and the inner cylinder body 8 and the filter screen 3 arranged avoid vortex flow of the wave surface in the process of extracting the organic waste liquid by the submersible pump, stably extracting the organic waste liquid.

[0026] Preferably, the inside of the connecting cylinder 1 is provided with a flushing ring pipe 6, the flushing ring pipe 6 is provided with a plurality of flushing holes 9 close to one side of the filter screen 3, and the flushing ring pipe 6 is communicated with a flushing pipe 5, one end of the flushing pipe 5 extending to the outside of the connecting cylinder 1.

[0027] Specifically, after the filter screen 3 works for a long time, the surface is covered with impurities, and the filter screen 3 can be cleaned through the flushing ring pipe 6, liquid is injected into the inside of the flushing ring pipe 6 through the flushing pipe 5, and then sprayed onto the filter screen 3 through the flushing holes 9 on the flushing ring pipe 6, under the action of high-pressure liquid, the impurities on the filter screen 3 are washed away, thereby realizing the cleaning effect, and effectively prolonging the service life of the filter screen 3.

[0028] Preferably, the bottom of the connecting cylinder 1 is provided with an interface 4.

[0029] Specifically, the interface 4 is provided below a float valve, so that liquid cannot enter from here, but the liquid in the inside is automatically discharged when the equipment is lifted for maintenance.

[0030] Preferably, it further comprises a flat plate 17, the top of the flat plate 17 is provided with a driving motor 14, the top of the transmission rod protection cylinder 12 and the liquid discharge pipe 13 penetrates the flat plate 17, the bottom of the transmission rod protection cylinder 12 is connected with a pump body 15, the bottom of the liquid discharge pipe 13 is communicated with the pump body 15, the output end of the driving motor 14 is connected with a rotating shaft, the bottom of the rotating shaft extending into the inside of the pump body 15 is provided with a plurality of fan blades.

[0031] Specifically, the fan blades are driven to rotate by the driving motor 14 and the rotating shaft, liquid is sucked into the inside of the pump body 15, and then transported into the inside of the liquid discharge pipe 13, thereby realizing the effect of extraction.

[0032] Preferably, the top of the connecting cylinder 1 is open, the top of the connecting cylinder 1 is provided with a connecting disc 19, the connecting disc 19 is installed with a plugging disc 18, and the locking clamp 2 is arranged on the plugging disc 18.

[0033] Specifically, the plugging disc 18 is convenient for taking out the pump body 15.

[0034] Workflow: in use, first by locking the clamp 2 with the hydraulic pump is connected to the device, and then in the hydraulic pump start pumping, the liquid through the opening of the inlet 101 connecting cylinder 1 into the first channel 10, then guided by the first channel 10 into the second channel 11, and finally into the inner cylinder 8 inside, then into the submersible pump inside, realize pumping, in pumping, by setting the filter screen 3 can effectively block large particles of impurities, avoid pump impeller damage, prolong the service life of submersible pump, while avoiding the submersible pump work when the wave surface vortex, smoothly take out the organic waste liquid, by setting the flow guide cylinder 7 and inner cylinder 8 and filter screen 3 so that in the process of submersible pump liquid extraction of organic waste liquid to avoid wave surface vortex, smoothly take out the organic waste liquid;

[0035] The filter screen 3 is cleaned by the flushing ring pipe 6, liquid is injected into the flushing ring pipe 6 through the flushing pipe 5, and then the flushing hole 9 on the flushing ring pipe 6 sprays outward on the filter screen 3, and under the action of high-pressure liquid, the impurities on the filter screen 3 are washed away.

[0036] The above only discloses the preferred embodiment of the utility model, of course, cannot limit the scope of the utility model, therefore, the equivalent changes made by the utility model claim still belong to the scope covered by the utility model.

Claims

1. A pump suction inlet device, characterized in that, include: Connecting cylinder (1); A guide tube (7) is arranged inside the connecting tube (1), and a first gap is formed between the bottom of the guide tube (7) and the inner bottom of the connecting tube (1). An inner cylinder (8) is arranged inside the guide tube (7), and a second gap is formed between the top of the inner cylinder (8) and the inner top of the connecting tube (1). The outer wall of the connecting cylinder (1) is provided with multiple inlets (101), the inlets (101) are connected to the first channel (10), and the top of the connecting cylinder (1) is connected to the transmission rod protection cylinder (12) and the drain pipe (13) through the locking clamp (2). The top of the drain pipe (13) is connected to the submersible pump.

2. The pump suction inlet device according to claim 1, characterized in that: A first channel (10) is formed between the outer side wall of the guide tube (7) and the inner side wall of the connecting tube (1), and a second channel (11) is formed between the inner side wall of the guide tube (7) and the outer side wall of the inner cylinder (8). The first channel (10) is connected to the second channel (11) through a first gap.

3. The pump suction inlet device according to claim 1, characterized in that: The bottom of the inner cylinder (8) is provided with a base (16), and the bottom of the base (16) is connected to the inner bottom wall of the connecting cylinder (1).

4. The pump suction inlet device according to claim 1, characterized in that, It also includes a plate (17), on the top of which a drive motor (14) is provided. The tops of the transmission rod protection cylinder (12) and the drain pipe (13) both penetrate the plate (17). The bottom of the transmission rod protection cylinder (12) is connected to a pump body (15). The bottom of the drain pipe (13) is connected to the pump body (15). The output end of the drive motor (14) is connected to a rotating shaft. The bottom of the rotating shaft extends into the interior of the pump body (15) and is provided with multiple fan blades.

5. The pump suction inlet device according to claim 1, characterized in that: The connecting cylinder (1) is equipped with a filter screen (3), which is connected to the inlet (101).

6. The pump suction inlet device according to claim 5, characterized in that: The connecting cylinder (1) is provided with a flushing ring pipe (6) inside. The flushing ring pipe (6) has multiple flushing holes (9) on the side close to the filter screen (3). The flushing ring pipe (6) is connected to a flushing pipe (5). One end of the flushing pipe (5) extends to the outside of the connecting cylinder (1).

7. The pump suction inlet device according to claim 1, characterized in that: The bottom of the connecting cylinder (1) is provided with an interface (4).

8. The pump suction inlet device according to claim 1, characterized in that: The top of the connecting cylinder (1) is open, and a connecting plate (19) is provided on the top of the connecting cylinder (1). A sealing plate (18) is installed on the connecting plate (19), and the locking clamp (2) is arranged on the sealing plate (18).

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