CN110131175A - Axial flow pump with filtering and cleaning function - Google Patents

Abstract

The invention discloses an axial flow pump with a filtering and cleaning function in the technical field of axial flow pumps. The axial flow pump includes a pump body, the lower end of the pump body is provided with a water inlet, the upper end of the pump body is provided with a water outlet elbow, the pump body is provided with a pump shaft, and the lower end of the pump shaft is provided with a guide vane and an impeller in sequence from top to bottom. The lower end of the guide vane wheel and the impeller is provided with a filter element, and a cleaning device is provided below the filter element. The cleaning device includes a rotating shaft. The upper end of the rotating shaft is fixedly connected with the filter element. The outer circumference is positioned with a rotating sleeve that can move vertically up and down along the rotating shaft. The rotating sleeve is fixed with a guide rod perpendicular to the rotating shaft. The inner wall of the pump is located at the position of the rotating shaft. The grooves intersect and communicate with each other. The guide rod is provided with a sliding block slidingly inserted into the spiral groove. The outer periphery of the guide rod is close to the inner wall of the pump and is rotatably installed with a cleaning disc. The invention has the advantage of preventing impurities from clogging the wall.

Description

Axial flow pump with filtering and cleaning function

technical field

The invention relates to the technical field of axial flow pumps, in particular to an axial flow pump with filtering and cleaning functions.

Background technique

The axial flow pump relies on the force generated by the blades of the rotating impeller on the liquid to transport the liquid along the axial direction. The axial flow pump impeller is equipped with 2 to 7 blades and rotates in a circular tubular pump casing. The pump casing above the impeller is equipped with a vane wheel to eliminate the rotational motion of the liquid and change it into axial motion, and convert the kinetic energy of the rotational motion into pressure energy. The axial flow pump is generally vertical, and the impeller is submerged under the water. After long-term use, impurities in the water are easy to stick to the wall and block the axial flow pump, which affects the use of the axial flow pump.

Contents of the invention

The object of the present invention is to provide an axial-flow pump with the function of filtering and cleaning to prevent wall clogging.

In order to achieve the purpose of the above invention, the axial flow pump with filtering and cleaning function of the present invention adopts the following technical scheme:

An axial flow pump with filtering and cleaning function, comprising a pump body, the lower end of the pump body is provided with a water inlet, the upper end of the pump body is provided with a water outlet elbow, the pump body is provided with a pump shaft, and the lower end of the pump shaft is sequentially arranged from top to bottom A guide vane wheel and an impeller are provided, and the lower end of the pump body is located below the guide vane wheel and the impeller, and a rotatable filter element is provided, and a cleaning device for cleaning the inner wall of the pump is provided below the filter element, and the cleaning device includes a rotating shaft. The upper end of the rotating shaft is fixedly connected with the filter element, the lower end of the rotating shaft is provided with rotating blades, and the water inlet part includes a first water inlet arranged on the right side of the pump body and used to guide the fluid to flow from the front side of the rotating blades, and also includes The second water inlet is arranged on the left side of the pump body and is used to guide the fluid to flow from the rear side of the rotating blade; the outer circumference of the rotating shaft is positioned with a rotating sleeve that can move vertically up and down along the rotating shaft, and the rotating sleeve is fixed with a vertical On the guide rod of the rotating shaft, the inner wall of the pump is located at the position of the rotating shaft, and there are two spiral grooves with opposite spirals, the two spiral grooves intersect and communicate with each other, and the guide rod is provided with a sliding block that slides into the spiral groove , the outer periphery of the guide rod is close to the inner wall of the pump to be rotatably equipped with a cleaning plate, and the side of the cleaning plate facing the inner wall of the pump is provided with a cleaning brush in contact with the inner wall of the pump and the spiral groove.

Preferably, the cleaning disc is provided with a reciprocating assembly that drives it to reciprocate. The reciprocating assembly includes a waist-shaped groove arranged on the inner wall of the cleaning disk along the circumferential direction. One end of the waist-shaped groove is provided with a first spring, and the other end of the waist-shaped groove One end is provided with a second spring, and there is a space between the first spring and the second spring. The guide rod is provided with a pressing block inserted into the space of the waist groove, and the two sides of the pressing block are respectively connected with the first spring and the second The two springs are in contact.

Preferably, the bottom end of the pump body is set as a cone, the opening of the upper end of the cone is larger than the opening of the lower end of the cone, the lower end of the cone is provided with a sewage outlet, and the position of the sewage outlet is provided with a gate. When the large particles of impurities have settled and accumulated, at this time, open the gate and discharge the impurities out of the pump body.

Preferably, the outer splines are evenly distributed on the upper part of the rotating shaft, and the inner splines matching the outer splines are evenly distributed on the inner wall of the rotating sleeve. Circumferential positioning is achieved through the cooperation of external splines and internal splines.

Preferably, the first water inlet is located on the right side of the pump body and inclined towards the rear of the right side, and the second water inlet is centrally symmetrical to the first water inlet.

Preferably, the first water inlet is connected to the front end of the pump body in an arc shape, and the second water inlet is connected to the rear end of the pump body in an arc shape.

Preferably, the filter element includes a particle filter layer and an activated carbon filter layer, and the activated carbon filter layer is located above the particle filter layer.

Compared with prior art, the beneficial effect of the present invention is:

1. The present invention filters out the impurities in the water by setting the filter element, and then installs a cleaning device under the filter element to prevent the filtered impurities from sticking to the wall and accumulating. , so that the cleaning brush reciprocates up and down along the inner wall of the pump, so as to realize the cleaning of the inner wall of the pump in all directions and prevent the accumulation of impurities on the wall. At this time, only a small cleaning brush can be installed to complete the cleaning work, occupying The space in the pump body is small, which will not affect the normal use of the axial flow pump of the present invention;

2. Through the setting of the first water inlet, the present invention makes the water sucked into the pump body enter from the right side and flow along the front side of the rotating blade, thereby pushing the rotating blade to rotate through the force of water. At the same time, due to the second The water inlet is set so that the water sucked into the pump body enters from the left side and flows along the rear side of the rotating blade, and the force of the water further assists in driving the rotating blade to rotate. Through the setting of the first water inlet and the second water inlet , so that the rotating blade rotates smoothly; at this time, the rotation of the rotating blade drives the rotating shaft to rotate, and the rotating sleeve is positioned on the rotating shaft in the circumferential direction, so that the rotating sleeve rotates with the rotating shaft and drives the guide rod to rotate, and the rotation of the guide rod drives the cleaning brush to rotate. Under the action of the spiral groove on the inner wall of the pump, the up and down helical reciprocating rotation of the cleaning brush is realized, and all-round cleaning is realized; the structure of the invention is reasonable and ingenious, and the cleaning brush is driven by a separate rotating shaft to clean, and the rotation of the rotating shaft is driven by hydraulic force. It is realized by pushing, the structure is simple, no separate driving device is required, and the cost is reduced. Moreover, the rotating shaft is driven by hydraulic power and is not directly linked with the pump shaft, thereby reducing the rotating speed of the rotating shaft, so that the cleaning brush will not perform rapid rotation and cleaning, and can be used for a long time , prolong the service life of the cleaning brush;

3. By setting the first spring and the second spring in the present invention, when the cleaning disc rotates, the pressing block is driven to press against the first spring, the first spring is compressed to generate elastic potential energy, and the elastic potential energy is released to pop up the pressing block, so that the pressing block Continue to press the second spring, at this time, the second spring is compressed and deformed to generate elastic potential energy, and the elastic potential energy is released to pop up the pressing block and continue to press the first spring, so that the cleaning disc can realize the reciprocating rotation on the guide rod, so that the cleaning brush It can clean the inner wall or spiral groove of the pump back and forth. When the cleaning rotation direction of the cleaning brush is different from that of the guide rod, a greater friction force will be generated, thereby cleaning the inner wall and the spiral groove of the pump, thereby improving the cleaning of the cleaning brush. , to prevent impurities from accumulating on the wall.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of sliding of the sliding block in the spiral groove;

Fig. 3 is a structural diagram of a spiral groove on one side of the pump body;

Fig. 4 is a structural diagram of the spiral groove on the other side of the pump body;

Fig. 5 is the installation schematic diagram of guide bar and cleaning disc;

Fig. 6 is the B-B sectional view of Fig. 5;

Fig. 7 is a structural schematic diagram of the first water inlet and the second water inlet;

Fig. 8 is a structural schematic diagram of a rotating shaft and a rotating sleeve;

FIG. 9 is an enlarged view of part A of FIG. 1 .

Among them, 1 pump shaft, 2 pump body, 3 guide impeller, 4 impeller, 5 activated carbon filter layer, 6 particle filter layer, 7 rotating sleeve, 8 rotating shaft, 9 spiral groove, 10 rotating blade, 11 first water inlet, 12 The second water inlet, 13 cleaning brush, 14 sliding block, 15 guide rod, 16 cleaning disc, 17 water outlet elbow, 18 waist groove, 19 pressing block, 20 first spring, 21 second spring, 22 external spline , 23 sewage outlets, 24 gates.

Detailed ways

Below in conjunction with specific embodiment, further illustrate the present invention, it should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after reading the present invention, those skilled in the art will understand the various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

As shown in Figure 1-9, an axial flow pump with filtering and cleaning functions includes a pump body 2, the lower end of the pump body 2 is provided with a water inlet, the upper end of the pump body 2 is provided with a water outlet elbow 17, and the bottom end of the pump body 2 is It is set as a cone, the opening of the upper end of the cone is larger than the opening of the lower end of the cone, the lower end of the cone is provided with a sewage outlet 23, and the position of the sewage outlet 23 is provided with a gate 24; the pump body 2 is provided with a pump shaft 1, and the lower end of the pump shaft 1 is from top to bottom. The lower end of the pump body 2 is located at the bottom of the vane wheel 3 and the impeller 4 and is provided with a rotatable filter element. The bottom of the filter element is provided with a cleaning device for cleaning the inner wall of the pump body 2. The filter element Comprising a particle filter layer 6 and an activated carbon filter layer 5, the activated carbon filter layer 5 is located above the particle filter layer 6; the cleaning device includes a rotating shaft 8, the upper end of the rotating shaft 8 is fixedly connected to the filter element, and the lower end of the rotating shaft 8 is provided with rotating blades 10. The water inlet part includes a first water inlet 11 arranged on the right side of the pump body 2 and used to guide the fluid to flow from the front side of the rotor blade 10, and also includes a first water inlet 11 arranged on the left side of the pump body 2 and used to guide the fluid from the rear of the rotor blade 10 The second water inlet 12 for side flow; the first water inlet 11 is located on the right side of the pump body 2 and is inclined towards the right rear. The front end of the pump body 2 is connected in an arc shape, and the second water inlet 12 is connected in an arc shape to the rear end of the pump body 2; the outer circumference of the rotating shaft 8 is positioned with a rotating sleeve 7 that can move vertically up and down along the rotating shaft 8, Outer splines 22 are evenly distributed on the top of the rotating shaft 8, and inner splines cooperating with the outer splines 22 are evenly distributed on the inner wall of the rotating sleeve 7; the rotating sleeve 7 is fixed with a guide rod 15 perpendicular to the rotating shaft 8, and the inner wall of the pump body 2 is located The position of the shaft 8 is provided with two helical grooves 9 with opposite helixes. The two helical grooves 9 intersect and communicate with each other. The guide rod 15 is provided with a sliding block 14 slidingly inserted into the helical groove 9. The outer circumference of the guide rod 15 is close to the inner wall of the pump body 2. A cleaning disc 16 is rotatably installed, and the side of the cleaning disc 16 facing the inner wall of the pump body 2 is provided with a cleaning brush 13 that is in contact with the inner wall of the pump body 2 and the spiral groove 9; Assemblies, the reciprocating assembly includes a waist-shaped groove 18 arranged on the inner wall of the cleaning plate along the circumferential direction. One end of the waist-shaped groove 18 is provided with a first spring 20, and the other end of the waist-shaped groove 18 is provided with a second spring 21. The first spring 20 and the second spring 21, there is a space between them, and the guide rod 15 is provided with a pressing block 19 inserted into the space of the waist groove 18, and the two sides of the pressing block 19 are in contact with the first spring 20 and the second spring 21 respectively. .

The specific working process and principle of the present invention: when the axial flow pump of the present invention is used, the vane wheel 3 is installed on the pump casing on the upper part of the impeller 4 to eliminate the rotary motion of the liquid, make it into axial motion, and turn the rotary motion into axial motion. Kinetic energy is converted into pressure energy, and water is sucked into the pump body 2 through the first water inlet 11 and the second water inlet 12, and then filtered by the filter element, so that the filtered water is discharged from the water outlet elbow 17, wherein the filter element is located at the guide impeller 3 and the lower part of the impeller 4, so that the impeller 3 and the impeller 4 are immersed in the water after filtering out impurities, thereby reducing the phenomenon of impurities sticking to the wall and blocking the axial flow pump; The cleaning device for cleaning prevents the impurities in the water before filtration from accumulating on the inner wall of the pump body 2, thus blocking the axial flow pump. The setting of the water inlet 11 makes the water sucked into the pump body 2 enter from the right side and flow along the front side of the rotating blade 10, thereby pushing the rotation of the rotating blade 10 by the force of the water. At the same time, due to the second water inlet 12 is set so that the water sucked into the pump body 2 enters from the left side and flows along the rear side of the rotating blade 10, and the force of the water further assists in pushing the rotating blade 10 to rotate, passing through the first water inlet 11 and the second water inlet 11. The setting of the water inlet 12 makes the rotating blade 10 rotate smoothly; at this time, the rotation of the rotating blade 10 drives the rotating shaft 8 to rotate, and due to the setting of the inner spline and the outer spline 22, the rotating sleeve 7 is circumferentially positioned on the rotating shaft 8 , so that the rotating sleeve 7 rotates with the rotating shaft 8 and drives the guide rod 15 to rotate. At this time, due to the two opposite helical grooves 9 on the inner wall of the pump body 2, the sliding block 14 of the guide rod 15 can move along the two helical grooves. Slot 9 slides, and because rotating sleeve 7 is circumferentially positioned on rotating shaft 8, rotating sleeve 7 can move up and down along rotating shaft 8 with guide bar 15, therefore, as shown in Figure 2, the slide block on guide bar 15 14 can realize spiral rotation up and down along the spiral groove 9, and the sliding block 14 moves downward in a spiral along one of the spiral grooves 9. Block 14 then follows another helical groove 9 to continue to spiral upwards, thereby realizing that sliding block 14 drives guide rod 15 to realize up and down spiral reciprocating motion, at this moment, the motion of guide rod 15 drives cleaning disc 16 to realize up and down reciprocating spiral motion, wherein, cleaning The disc 16 is rotatably installed on the guide rod 15. When the guide rod 15 drives the cleaning disc 16 to rotate, the cleaning disc 16 is rotated under the action of force, and the axial flow pump sucks water into the pump body 2, and the force of the water pushes the disc 16 to rotate. The cleaning disc 16 rotates. At this time, due to the action of the first spring 20 and the second spring 21, the cleaning disc 16 drives the pressing block 19 to press the first spring 20 when the cleaning disc 16 rotates. The first spring 20 is compressed to generate elastic potential energy, and the elastic The potential energy is released and the pressing block 19 is ejected, so that the pressing block 19 continues to press the second spring 21. At this time, the second spring 21 is compressed and deformed to generate elastic potential energy, and the elastic potential energy is released. The pressing block 19 is ejected and continues to press the first spring 21. spring 20, so that the cleaning disc 16 realizes the reciprocating rotation on the guide rod 15, so that the cleaning brush 13 can clean the inner wall of the pump body 2 or the spiral groove 9 back and forth. When the cleaning rotation direction of the cleaning brush 13 is different from that of the guide rod 15, a The greater frictional force, thereby cleaning the inner wall of the pump body 2 and the spiral groove 9, and preventing impurities from accumulating on the wall.

Claims (7)

1. a kind of axial-flow pump of band filtering cleaning function, including the pump housing, pump housing lower end are equipped with water entering section, pump housing upper end is equipped with water outlet Bend pipe, the pump housing is interior to be equipped with pump shaft, and pump shaft lower end is successively arranged guide vane wheel and impeller from top to bottom, it is characterised in that: described Pump housing lower end is located at guide vane wheel and the lower section of impeller is equipped with the filtration members that can be rotated, and the lower section of filtration members is equipped with to pump housing inner wall The clearing apparatus of cleaning, the clearing apparatus include rotation axis, and the upper end of rotation axis and filtration members are affixed, and the lower end of rotation axis is set There is a moving blade, the water entering section includes for being arranged on the right side of the pump housing and flowing for pilot fluid from moving blade front side One water inlet further includes the second water inlet for being arranged on the left of the pump housing and just flowing on rear side of moving blade for pilot fluid； The periphery of the rotation axis is circumferentially positioned have can be fixed with along the turning set that rotation axis moves up and down vertically, turning set perpendicular to The guide rod of rotation axis, the position that the pump housing inner wall is located at rotation axis open up the helicla flute opposite there are two spiral, two spiral shells Spin slot intersects and is connected, and the guide rod is equipped with the sliding shoe being slidably inserted into helicla flute, and guide rod periphery is in the pump housing Wall is rotatably equipped with clean disk, and the one side of wall is equipped with and phase in pump housing inner wall and helicla flute slot in clean disk faces toward pump body The cleaning brush of contact.

2. the axial-flow pump of band filtering cleaning function according to claim 1, it is characterised in that: the clean disk is equipped with driving The reciprocating member of its reciprocating rotation, reciprocating member include being provided with the waist type groove of clean disk inner wall circumferentially, waist type groove One end is equipped with the first spring, and the other end of waist type groove is equipped with second spring, and there are spacing, institutes between the first spring and second spring The press block that guide rod is equipped in insertion waist type groove spacing is stated, the two sides of press block connect with the first spring and second spring respectively Touching.

3. the axial-flow pump of band filtering cleaning function according to claim 1, it is characterised in that: the pump housing bottom end is set as Cone cylinder, cone cylinder upper end opening are greater than cone cylinder lower ending opening, and cone cylinder lower end is equipped with sewage draining exit, and Location for Sewage is equipped with gate.

4. the axial-flow pump of band filtering cleaning function according to claim 1, it is characterised in that: the rotation axis top is uniform It is distributed external splines, the inner wall of the turning set is uniformly distributed the internal spline with external splines cooperation.

5. the axial-flow pump of band filtering cleaning function according to claim 1, it is characterised in that: first water inlet is located at It is arranged on the right side of the pump housing and towards right side back sweep, second water inlet is centrosymmetric with the first water inlet.

6. the axial-flow pump of band filtering cleaning function according to claim 5, it is characterised in that: first water inlet and pump Body front end is arc-shaped to connect, second water inlet with pump housing rear end is arc-shaped connects.

7. the axial-flow pump of band filtering cleaning function according to claim 1, it is characterised in that: the filtration members include particle Filter layer and activated carbon filter layer, the activated carbon filter layer are located at the top of particle filter layer.