CN216259261U

CN216259261U - High-efficiency impeller defoamer

Info

Publication number: CN216259261U
Application number: CN202121839786.8U
Authority: CN
Inventors: 唐琪良
Original assignee: Wuxi Zhonghe Technology Co ltd
Current assignee: Wuxi Zhonghe Technology Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-04-12
Anticipated expiration: 2031-08-06

Abstract

The utility model relates to the technical field of mechanical defoamers, in particular to a high-efficiency impeller defoamer, which comprises an impeller and a power device for driving the impeller to rotate, wherein the impeller comprises an impeller shaft, an impeller disc and a plurality of groove-shaped blades; it utilizes the impeller shaft when rotatory, cell type blade and drainage plate homoenergetic produce suction, at first the bubble suction runner that is close to the one end of impeller shaft with the below by the runner, the bubble in the runner can be compressed breakage, because the edge of cell type blade is more, so can form excellent shearing effect to the bubble, smash the bubble, secondly, when the bubble is more, it can be under the rotatory produced suction effect of drainage plate to pile up the bubble in the inner of runner, turn back upward at the edge of impeller dish and flow, then turn round again and reach drainage plate department, smash it by the drainage plate, thereby provide the defoaming rate, the reinforcing is to the defoaming effect of the great liquid of viscosity, and the design is simple to operate, and is with low costs, application scope is wide.

Description

High-efficiency impeller defoamer

Technical Field

The utility model relates to the technical field of mechanical defoamers, in particular to a high-efficiency impeller defoamer.

Background

In the process of chemical production, particularly microbial fermentation, a large amount of foam is generated in a reaction kettle, and the foam can seriously affect the normal operation of the production. This requires a method to eliminate foam, the best method at present being to use mechanical equipment to eliminate foam, i.e. mechanical defoamers. The most key part of the mechanical defoamer is the impeller, and the impeller is used for smashing foams in the reaction kettle when rotating, so that the requirement on the impeller is high; the impeller among the current defoamer is closed impeller usually, and it mainly comprises upper cover plate, lower cover plate and a plurality of impellers of welding between upper cover plate and lower cover plate, and its main problem that exists is, and is not good to the great liquid defoaming effect of viscosity, and this kind of closed impeller requires very high to the dynamic balance, and the welding degree of difficulty is also great, causes manufacturing cost to be high.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: in order to solve the problem that the mechanical defoamer in the prior art is not suitable for liquid with high viscosity, a high-efficiency impeller defoamer is provided.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a high-efficiency impeller defoamer comprises an impeller and a power device for driving the impeller to rotate, wherein the impeller comprises an impeller shaft, an impeller disc and a plurality of groove-shaped blades, and the power device is rotationally connected with the impeller shaft;

the cell type blade includes upper plate, intermediate lamella and hypoplastron, the upper end and the upper plate fixed connection of intermediate lamella, the lower extreme and the hypoplastron fixed connection of intermediate lamella, and form the runner between upper plate, intermediate lamella and the hypoplastron:

the impeller disc is fixedly connected with the impeller shaft, the plurality of groove-shaped blades are distributed on the impeller disc at intervals along the circumferential direction of the impeller shaft, the middle plates of the groove-shaped blades are fixedly connected with the impeller disc, the impeller disc extends into the flow channel, a gap is formed between the upper plate and the upper surface of the impeller disc, a gap is also formed between the lower plate and the lower surface of the impeller disc, and the upper surface of the upper plate is fixedly provided with the drainage plate.

Utilize the impeller shaft when rotatory in this scheme, cell type blade and drainage plate homoenergetic produce suction, at first the bubble suction runner with the below by the one end (runner inner) that the runner is close to the impeller shaft, the bubble in the runner can be compressed breakage, because the edge of cell type blade is more, so can form excellent shearing effect to the bubble, smash the bubble, secondly, when the bubble is more, it can be under the rotatory produced suction effect of drainage plate to pile up the bubble at runner inner, turn back upward flow in the edge of impeller dish, then turn round and reach drainage plate department, smash it by the drainage plate, thereby provide the defoaming rate, the reinforcing is to the defoaming effect of the great liquid of viscosity, and design simple to operate, and is with low costs, wide application scope.

Further, the impeller disc is inclined downwards from inside to outside; the fluidity of the bubbles is improved, and the accumulation of the bubbles is reduced.

Further, the flow channel in the groove-shaped blade is inclined downwards from inside to outside; the air bubbles sucked in are favorably collided with the groove-shaped blades.

Further, the middle plate is located on the same side of the upper plate and the lower plate.

Furthermore, a positioning groove is formed in the inner end of the middle plate, and the impeller disc is inserted into the positioning groove; when the groove-shaped blade is assembled, the groove-shaped blade is positioned on the impeller disc conveniently, and the assembly precision of the groove-shaped blade is improved.

Further, the upper plate and the lower plate are both trapezoidal.

Furthermore, the drainage plate is arc-shaped.

Further, still include casing and lower casing, go up casing and lower casing fixed connection, and form each other the inner chamber, the impeller shaft passes last casing, the cell type blade is located the inner chamber, the middle part of casing has the through-hole down, be fixed with a plurality of spliced poles between the top tip of last casing bottom tip and casing down, form the side direction hole between two adjacent spliced poles.

Furthermore, a mounting seat is fixed on the upper shell, and a framework oil seal is arranged between the mounting seat and the impeller shaft; thereby forming a dynamic seal between the impeller shaft and the upper housing.

Furthermore, an installation plate is fixed on the upper shell, the power device adopts a motor, and the motor is fixed on the installation plate.

The utility model has the beneficial effects that: the efficient defoamer provided by the utility model has the advantages that the groove-shaped blades and the drainage plate can generate suction when the impeller shaft rotates, firstly, bubbles below the impeller shaft are sucked into the flow channel from one end of the flow channel close to the impeller shaft, the bubbles in the flow channel can be compressed and crushed, and because the groove-shaped blades have more edges, an excellent shearing effect can be formed on the bubbles to crush the bubbles, and secondly, when the bubbles are more, the bubbles accumulated at the inner end of the flow channel can turn back and flow upwards at the edge of the impeller disc under the action of the suction generated by the rotation of the drainage plate, and then turn to the drainage plate to be crushed by the drainage plate, so that the defoaming rate is provided, the defoaming effect on liquid with higher viscosity is enhanced, and the defoamer is simple in design, convenient to install, low in cost and wide in application range.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of a high efficiency impeller defoamer of the present invention;

FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;

FIG. 3 is a three-dimensional schematic view of an impeller in the high efficiency impeller defoamer of the present invention;

in the figure: 1. impeller shaft, 2, impeller disc;

3. the groove-shaped blade 301, the upper plate 302, the middle plate 3021, the positioning groove 303, the lower plate 304 and the flow channel;

4. the device comprises a power device, 5, a drainage plate, 6, an upper shell, 7, a lower shell, 701, through holes, 8, an inner cavity, 9, a connecting column, 10, a mounting seat, 11, a framework oil seal, 12 and a mounting plate.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention, and directions and references (e.g., upper, lower, left, right, etc.) may be used only to help the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.

Example 1

As shown in fig. 1-3, a high-efficiency impeller defoamer comprises an impeller and a power device 4 for driving the impeller to rotate, wherein the impeller comprises an impeller shaft 1, an impeller disc 2 and a plurality of groove-shaped blades 3, and the power device 4 is rotatably connected with the impeller shaft 1;

the groove-shaped blade 3 comprises an upper plate 301, a middle plate 302 and a lower plate 303, wherein the upper end of the middle plate 302 is fixedly connected with the upper plate 301, the lower end of the middle plate 302 is fixedly connected with the lower plate 303, a flow channel 304 is formed among the upper plate 301, the middle plate 302 and the lower plate 303, and specifically, the upper plate 301 and the lower plate 303 are both trapezoidal:

the impeller disc 2 is fixedly connected with the impeller shaft 1, the groove-shaped blades 3 are distributed on the impeller disc 2 at intervals along the circumferential direction of the impeller shaft 1, the middle plates 302 of the groove-shaped blades 3 are fixedly connected with the impeller disc 2, the impeller disc 2 extends into the flow channel 304, a gap is formed between the upper plate 301 and the upper surface of the impeller disc 2, a gap is also formed between the lower plate 303 and the lower surface of the impeller disc 2, the upper surface of the upper plate 301 is fixedly provided with the flow guide plate 5, and the flow guide plate 5 is specifically arc-shaped.

The impeller disc 2 is inclined downwards from inside to outside; the fluidity of the bubbles is improved, and the accumulation of the bubbles is reduced; the impeller disc 2 is in this embodiment conical and arranged coaxially with the impeller shaft 1.

The flow channel 304 in the groove-shaped blade 3 is inclined downwards from inside to outside; the air bubbles sucked in are favorably collided with the groove-shaped blades 3;

the middle plate 302 is positioned on the same side of the upper plate 301 and the lower plate 303, so that the groove-shaped blade 3 can form a U-shaped structure, and meanwhile, the groove-shaped blade 3 is convenient to bend and form, and the manufacturing is convenient;

a positioning groove 3021 is formed in the inner end of the middle plate 302, and the impeller disc 2 is inserted into the positioning groove 3021; when can be convenient for assemble, the location of cell type blade 3 on impeller dish 2 improves the assembly precision of cell type blade 3, and cell type blade 3 specifically adopts welded fastening on impeller dish 2 in this embodiment.

Still include casing 6 and lower casing 7, go up casing 6 and casing 7 fixed connection down, and form each other the inner chamber 8, impeller shaft 1 passes casing 6, cell type blade 3 is arranged in inner chamber 8, the middle part of casing 7 has through-hole 701 down, it is fixed with a plurality of spliced poles 9 to go up between 6 bottom tip of casing and the top tip of casing 7 down, forms the side direction hole between two adjacent spliced poles 9.

An installation seat 10 is fixed on the upper shell 6, and a framework oil seal 11 is arranged between the installation seat 10 and the impeller shaft 1; thereby forming a dynamic seal between the impeller shaft 1 and the upper housing 6.

An installation plate 12 is fixed on the upper shell 6, and the power device 4 adopts a motor which is fixed on the installation plate 12.

The working principle of the high-efficiency impeller defoamer in the embodiment is as follows:

referring to fig. 1, the dotted line in fig. 1 represents a bubble flow path;

when the impeller works, the motor drives the impeller shaft 1 to rotate, the groove-shaped blades 3 and the drainage plates 5 synchronously rotate along with the impeller shaft and generate suction force, bubbles enter the inner cavity 8 from the through holes 701 of the lower shell 7 and are sucked onto the groove-shaped blades 3, and then are thrown away under the action of centrifugal force;

the specific process is that firstly, the lower air bubbles are sucked into the flow channel 304 through the gap between the lower plate 303 and the lower surface of the impeller disc 2, the air bubbles in the flow channel 304 are compressed and crushed, and because the groove-shaped blades 3 have more edges, an excellent shearing effect can be formed on the air bubbles, and the air bubbles are crushed;

secondly, when the bubble is more, pile up the bubble that is in runner 304 the inner and can turn back at the edge of impeller dish 2 under the rotatory produced suction effect of drainage plate 5 to along the clearance between the upper plate 301 and the upper surface of impeller dish 2 upwards flow, then turn round again and reach drainage plate 5 department, smash it by drainage plate 5, thereby provide the defoaming rate, the reinforcing is to the defoaming effect of the great liquid of viscosity, and the design is simple to operate, and is with low costs, and application scope is wide.

In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a high-efficient impeller defoamer which characterized in that: the impeller comprises an impeller and a power device (4) for driving the impeller to rotate, wherein the impeller comprises an impeller shaft (1), an impeller disc (2) and a plurality of groove-shaped blades (3), and the power device (4) is rotationally connected with the impeller shaft (1);

the groove-shaped blade (3) comprises an upper plate (301), a middle plate (302) and a lower plate (303), the upper end of the middle plate (302) is fixedly connected with the upper plate (301), the lower end of the middle plate (302) is fixedly connected with the lower plate (303), and a flow channel (304) is formed among the upper plate (301), the middle plate (302) and the lower plate (303):

the impeller disc (2) is fixedly connected with the impeller shaft (1), the groove-shaped blades (3) are distributed on the impeller disc (2) at intervals along the circumferential direction of the impeller shaft (1), the middle plates (302) of the groove-shaped blades (3) are fixedly connected with the impeller disc (2), the impeller disc (2) extends into the flow channel (304), a gap is formed between the upper plate (301) and the upper surface of the impeller disc (2), a gap is also formed between the lower plate (303) and the lower surface of the impeller disc (2), and the upper surface of the upper plate (301) is fixedly provided with the flow guide plate (5).

2. The high efficiency impeller defoamer as set forth in claim 1, wherein: the impeller disc (2) is inclined downwards from inside to outside.

3. The high efficiency impeller defoamer as set forth in claim 1, wherein: the flow channel (304) in the groove-shaped blade (3) is inclined downwards from inside to outside.

4. The high efficiency impeller defoamer as set forth in claim 1, wherein: the intermediate plate (302) is located on the same side of the upper plate (301) and the lower plate (303).

5. The high efficiency impeller defoamer as set forth in claim 1, wherein: the inner end of the middle plate (302) is provided with a positioning groove (3021), and the impeller disc (2) is inserted into the positioning groove (3021).

6. The high efficiency impeller defoamer as set forth in claim 1, wherein: the upper plate (301) and the lower plate (303) are both trapezoidal.

7. The high efficiency impeller defoamer as set forth in claim 1, wherein: the drainage plate (5) is arc-shaped.

8. The high efficiency impeller defoamer as set forth in claim 1, wherein: still include casing (6) and casing (7) down, go up casing (6) and casing (7) fixed connection down, and form inner chamber (8) each other, casing (6) are passed in impeller shaft (1), cell type blade (3) are arranged in inner chamber (8), the middle part of casing (7) has through-hole (701) down, it is fixed with a plurality of spliced poles (9) to go up between the top tip of casing (6) bottom tip and casing (7) down, forms the side direction hole between two adjacent spliced poles (9).

9. The high efficiency impeller defoamer as set forth in claim 8, wherein: an installation seat (10) is fixed on the upper shell (6), and a framework oil seal (11) is arranged between the installation seat (10) and the impeller shaft (1).

10. The high efficiency impeller defoamer as set forth in claim 8, wherein: the upper shell (6) is fixedly provided with a mounting plate (12), the power device (4) adopts a motor, and the motor is fixedly arranged on the mounting plate (12).