A pump with an improved cutting unit

Abstract

The invention relates to a pump comprising at least one cutting unit (20) for breaking down the solid and / or fibrous materials contained in the fluid in a waste tank while the fluid is transported. The novelty of the invention is characterized in that said cutting unit (20) comprises at least one housing (21), and said housing (21) comprises at least two cutting flanges (22) in identical or different forms and at least one cutting tooth (24) in identical or different forms on the inward facing side of said cutting flanges (22).

Description

[0001] A PUMP WITH AN IMPROVED CUTTING UNIT

[0002] TECHNICAL FIELD

[0003] The invention relates to a pump that crushes the solid and / or fibrous materials contained in the fluid in the waste tanks, while the fluid is transported to the next process, and comprises at least one cutting unit for this purpose.

[0004] PRIOR ART

[0005] Submersible type of pumps work inside the fluid to be transferred and transfer the fluid by pressurizing it. In general, a submersible pump generally comprises a motor with a rotor and stator, a volute, an impeller that provides a balanced transfer of angular momentum to the fluid inside the volute, a cutting unit at the inlet part of the fluid that ensures the crush of solid and / or fibrous materials in the fluid, and a stand. Submersible pumps are used in various industrial applications and waste water systems.

[0006] In submersible pumps, some problems may occur during the process. The most important of these problems is clogging problem, which can result in that the solids in the fluid clogging the system during the pumping process, blocking the pump from working, and damaging to the system and pump components. Submersible pumps have the crushing components with different designs and features that allow the solid and / or fibrous materials in the fluid to be broken down. These components may be the cutting blade, helix, or teeth, through which the rotor and stator transmit the motion via a drive shaft during the pumping process.

[0007] The crushing components are located in an ideal position to ensure that the solid and / or fibrous materials in the fluid are broken down and pass through the pump suction port, during the pumping process. The crushing components positively affect the service life of parts in submersible pumps operating in fluid. Additionally, the crushing process increases the surface area of solid and / or fibrous materials and the efficiency of chemical reactions. Accordingly, an efficiency-based increase is achieved in gas production amounts in biogas facilities and in compost production amounts in compost production facilities. Application No. DE1270873, known in the literature, relates to a pump with increased capacity that provides both pumping and mixing of liquid manure. The invention is characterized in that it comprises a mixing element that is mounted hermetically to the pumping opening. There is a housing part with cutting blades around this mixing element.

[0008] The cutting blades are the crushing mechanism used in submersible pumps in waste tanks and help break down solid and / or fibrous materials. However, some problems may arise when using these mechanisms. These problems are described below.

[0009] 1 .Wear: The cutting blades will be worn and damaged in long-term use. In this case, the crushing process cannot occur as intended and as a result clogging problem will happen again. This may also result in damaged pump and system components which in turn increases maintenance costs.

[0010] 2. Corrosion: Cutting blades may be corroded by chemical waste or other acidic liquids

[0011] 3. Design flaws: Flawed design of the cutting blade such as choosing a wrong material can negatively affect the service life of the cutting blades, and as a result, the cutting blades may not function as intended.

[0012] These problems can be reduced by regular maintenance and cleaning and by choosing the right materials and design. Periodic maintenance of cutting blades can help early detection and prevention of possible clogging problems. In addition, the correct design and selection of materials of the cutting blade eliminates additional negative situations that will affect the service life of the cutting blades. However, in its final form, the cutting blade has a service life and, depending on use, the cutting blades must be replaced with new ones over time.

[0013] All the aforementioned problems have made it necessary to realize a novelty in the relevant technical field. SUMMARY OF THE INVENTION

[0014] The present invention relates to a pump to eliminate the above-mentioned disadvantages and bring the new advantages to the relevant technical field.

[0015] An object of the invention is to provide a low-cost pump with reduced maintenance costs for crushing components and simplified manufacturing.

[0016] Another object of the invention is to create a pump with a blade structure, which cannot be achieved by machining, by introducing a new cutting blade design with a modular structure.

[0017] Another object of the invention is to produce a pump with the cutting blade variations that has the flexibility to provide the most appropriate response to waste tanks containing different amounts or contents of solid and / or fibrous materials.

[0018] In order to accomplish all the objectives mentioned above and to be explained in the detailed description below, the present invention relates to a pump comprising at least one cutting unit that breaks down the solid and / or fibrous materials contained in the fluid while being transported. Accordingly, the novelty is that said cutting unit comprises at least one housing, and said housing comprises at least two cutting flanges in identical or different forms and at least one cutting teeth in identical or different forms on the inward facing side of said cutting flanges. Thus, in case of a deformation in the cutting unit, the cutting flanges in the problematic section can be easily replaced with new ones.

[0019] A possible embodiment of the invention is characterized the outward facing side of the cutting flange has a polygonal form with nine edges. Thus, different arrangements can be made to break down different types of solid and / or fibrous materials.

[0020] Another possible embodiment of the invention is characterized in that the cutting flange is produced by laser cutting operations and the cutting flange comprises 12 cutting teeth. Thus, the cutting flange can be easily manufactured with precision. The cutting flanges are currently processed as a whole on metal processing machines such as lathe-milling machines. However, in the product of the invention, the complex and special geometry designs that cannot be produced as a whole with lathe-milling machines, etc. can be produced by cutting operations such as laser cutting. As a result, the cutting units consisting of more than one cutting flange and having a wide variety of geometries can be obtained, and it will be possible to respond to waste tanks with different amounts or contents.

[0021] BRIEF DESCRIPTION OF THE DRAWING

[0022] Fig. 1 Illustrates a representative perspective view of the pump of the invention.

[0023] Fig. 2 illustrates a representative perspective view of the cutting unit in the pump of the invention.

[0024] Fig. 3 illustrates another representative perspective view of the cutting unit in the pump of the invention, with its arrangements changed for different usage areas.

[0025] Fig. 4 illustrates a representative perspective view of the cutting flange in the pump of the invention.

[0026] DETAILED DESCRIPTION OF THE INVENTION

[0027] In this detailed description, the subject of the invention is only described with the examples without any limiting effect for a better understanding of the subject.

[0028] Figs. 1 and 2 show representative views of the pump (1 ) of the invention and its components. Accordingly, the pump (1 ) of the invention is used to transport fluids. These pumps (1 ) suck the fluid along a suction line, push the fluid along a pressure line and transport it to a target point. There is at least one drive element (10) on the pump (1 ). Said drive element (10) converts electrical energy into kinetic energy to transport the fluid. There is at least one volute (11 ) on the side of the pump (1 ) that contacts the fluid. Said volute (1 1 ) directs the fluid by pressurizing it in a closed volume. For this purpose, an impeller (14) is positioned in the center of the volute (11 ). The impeller takes the fluid into the volute (1 1 ) from an inlet part (12) and advances it towards an outlet part (13) by increasing its angular momentum. There is at least one cutting unit (20) at the inlet part (12) of the volute (1 1 ) in the pump (1 ). Said cutting unit (20) is configured to ensure that the fluid containing solid and / or fibrous material is broken down and enters the volute (1 1 ). In this way, clogging of the volute (11 ) due to these solid materials is prevented. For this purpose, the cutting unit (20) has at least one housing (21 ). Said housing (21 ) is positioned at the inlet part (12) of the volute (1 1 ). In another possible embodiments of the invention, the housing (21 ) is essentially cylindrical in shape and can be formed in an angular structure. At least two cutting flanges (22) in identical or different forms are positioned within the housing (21 ). In a preferred embodiment of the invention, there is a polygonal form to fix said cutting flange (22), which is placed in a way to be concentric with the housing (21 ) and lined up inside the housing (21 ). Said cutting flange (22) ensures the breakdown of solid and / or fibrous materials. A plurality of cutting flanges (22) is positioned within the housing (21 ). A modular structure is achieved in the cutting unit (20) with multiple number of cutting flanges (22). The modular structure of the cutting flange (22) makes revisions easier in case of possible malfunctions and maintenance in the cutting unit (20) without the need to replace the entire cutting unit (20). In addition, the production method of the cutting flange of the invention makes it possible to achieve complex geometries, and a cutting unit (20) will be obtained, which has the flexibility to respond appropriately to waste tanks containing different amounts or contents of fibrous and / or solid materials.

[0029] Fig. 3 shows another representative perspective view of the cutting unit (20) in the pump (1 ) of the invention, with its arrangements changed for different usage areas. Accordingly, by positioning the cutting flanges (22) in the cutting unit (20) concentrically in different positions within the housing (21 ), the shredding process with different characterizations are ensured in the cutting unit (20). The cutting flange (22) in the housing (21 ) is manufactured in polygonal form (23). Said polygonal form (23) refers to the edges on the outer surface of the cutting flange (22). Depending on the need, the outer edge of the cutting flange (22) may have multiple edges. In a possible embodiment of the invention, there are 9 edges (with an enneagonal structure) in polygonal form (23). In this way, the cutting flanges (22) in the cutting unit (20) can be positioned in different positions (see Fig. 2 and Fig. 3) to allow the fluids of different densities to be properly broken down.

[0030] Fig. 4 shows a representative perspective view of the cutting flange (22) in the pump (1 ) of the invention. Accordingly, there is a polygonal form (23) on the outward facing side of the cutting flange (22). There is a cutting tooth (24) on the inward facing side of the cutting flange (22). Said cutting tooth (24) may be in the form of a recess or protrusion on the cutting flange (22). In the preferred embodiment of the invention, the cutting tooth (24) is manufactured in the form of a protrusion facing the impeller (14). There is a plurality of cutting teeth (24) on the cutting flange (22). The number and geometry of the cutting teeth (24) may vary depending on the need. In a possible embodiment of the invention, there are 12 cutting teeth (24) in cutting flange (22).

[0031] Ease of production and ease of assembly are provided by the presence of a plurality of modular cutting flanges (22) in the cutting unit (20). In a possible embodiment of the invention, the cutting flange (22) is manufactured by laser cutting operation. With this operation, the complex structured geometries that cannot be produced on machining machines such as lathe-milling machines, etc. can be easily manufactured. The cutting tooth (24) on the cutting flange (22) can be shaped in different cutting forms with a laser cutter. Thus, the cutting flange (22) is customized. With these special forms obtained, it will be possible to present the most suitable option for waste tanks containing different amounts or contents of solid and / or fibrous materials. In addition, this configuration of the cutting flange (22) of the cutting unit (20) will facilitate the maintenance-repair process.

[0032] The scope of protection of the invention is described in the appended claims and cannot be limited to what is explained in this detailed description for the exemplary purposes. It is clear that a person skilled in the art can produce similar embodiments in the light of what is explained above, without deviating from the main theme of the invention.

[0033] REFERENCE NUMBERS GIVEN IN THE FIGURE

[0034] I Pump 10 Drive Element

[0035] I I Volute

[0036] 12 Inlet Part

[0037] 13 Outlet Part

[0038] 14 Impeller

[0039] 20 Cutting Unit

[0040] 21 Housing

[0041] 22 Cutting Flange

[0042] 23 Polygonal Form 24 Cutting Tooth

Claims

CLAIMS1. A pump comprising at least one cutting unit (20) for breaking down the solid and / or fibrous materials contained in the fluid in a waste tank while the fluid is transported, characterized in that said cutting unit (20) comprises at least one housing (21 ), and said housing (21 ) comprises at least two cutting flanges (22) in identical or different forms and at least one cutting tooth (24) in identical or different forms on the inward facing side of said cutting flanges (22).

2. A pump (1 ) according to claim 1 , characterized in that the cutting flange (22) has an polygonal form (23) on its outward side.

3. A pump (1 ) according to claim 1 , characterized in that the cutting flange (22) is laser cut.

4. A pump (1 ) according to claims 1 and 2, characterized in that the cutting flange (22) has nine edges in a polygonal form (23).

5. A pump (1 ) according to claim 1 , characterized in that the cutting flange (22) comprises 12 cutting teeth (24).

Images