Labyrinth screw pump propelled by open impeller and vortex impeller

Abstract

The invention discloses a labyrinth screw pump propelled by an open impeller and a vortex impeller, and relates to the technical field of engineering conveying equipment, the labyrinth screw pump is technically characterized by comprising a motor and a pump body, a rotor is rotatably mounted in the pump body, and one end of the rotor is fixedly connected with the output end of the motor; the pump body is composed of a plurality of parts which are a self-suction pressurization section, a spiral section and a rectification section in sequence, the spiral section is fixedly installed between the self-suction pressurization section and the rectification section, a liquid inlet is fixedly formed in the self-suction pressurization section, a liquid outlet is fixedly formed in the rectification section, and a pressurization cavity is formed in the self-suction pressurization section; fixed teeth are fixedly installed on the inner surface of the spiral section, spiral teeth are fixedly installed on the outer surface of the rotor and located in the spiral section, an open impeller and a vortex impeller are fixedly installed on the rotor and located in the pressurizing cavity, the vortex impeller is installed on the side close to the spiral section, gas and liquid can be mixed more sufficiently, and the gas and liquid can be mixed more sufficiently. And the water yield at the liquid outlet is higher.

Description

Technical Field

[0001] The invention relates to the technical field of engineering conveying equipment, in particular to a labyrinth screw pump with an open impeller and a vortex impeller for propulsion. Background Art

[0002] When the labyrinth screw pump is in use, its liquid inlet is directly connected to the water source, and the liquid is lifted up by the spiral suction of the pump body itself, thereby realizing the extraction of liquid substances. However, this type of labyrinth screw pump only relies on the pump body's own spiral suction of liquid. Due to the small gap in the liquid inlet of its own spiral structure, the liquid supply pressure at its liquid inlet is insufficient, which directly leads to insufficient liquid pressure at the liquid outlet of the labyrinth screw pump, resulting in too low liquid pressure at the liquid outlet, and the water output cannot be increased. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention provides a labyrinth screw pump with an open impeller and a vortex impeller for propulsion to solve the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a labyrinth screw pump with an open impeller and a vortex impeller for propulsion, comprising a motor and a pump body, wherein a rotor is rotatably installed in the pump body, and one end of the rotor is fixedly connected to the output end of the motor; the pump body is composed of multiple parts, namely a self-priming boosting section, a spiral section and a rectifying section, wherein the spiral section is fixedly installed between the self-priming boosting section and the rectifying section, a liquid inlet is fixedly installed on the self-priming boosting section, a liquid outlet is fixedly arranged on the rectifying section, and a boosting chamber is arranged in the self-priming boosting section; fixed teeth are fixedly installed on the inner surface of the spiral section, spiral teeth are fixedly installed on the outer surface of the rotor and located in the spiral section, an open impeller and a vortex impeller are fixedly installed on the rotor and located in the boosting chamber, wherein the vortex impeller is installed on the side close to the spiral section.

[0005] Preferably, straightening blades are fixedly mounted on the outer surface of the rotor and located in the straightening section.

[0006] Preferably, an annular gap is provided in the spiral section, and the annular gap divides the spiral teeth and the fixed teeth into two parts, wherein the length of one part is three times the length of the other part, and the other part is closer to the self-priming and boosting section.

[0007] Compared with the prior art, the present invention provides a labyrinth screw pump with an open impeller and a vortex impeller, which has the following beneficial effects:

[0008] The pump body is arranged to be composed of a self-priming boosting section, a spiral section and a rectifying section in sequence, and a rotor is rotatably installed in the pump body, and an open impeller and a vortex impeller are fixedly installed on the rotor and located at the self-priming boosting section, wherein the vortex impeller is installed on the side close to the spiral section, and the vortex impeller rotates at high speed to form a longitudinal vortex, so that the liquid circulates multiple times in the self-priming boosting section and obtains energy, thereby achieving high head, allowing the liquid in a high-pressure state to enter the spiral section, and making the water output at the liquid outlet higher.

[0009] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0011] Figure 1 It is a structural schematic diagram of the present invention;

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the pump body in the present invention;

[0013] Figure 3 It is a schematic diagram of the structure of the present invention.

[0014] In the figure:

[0015] 1. Motor; 2. Pump body; 3. Rotor; 4. Open impeller; 5. Vortex impeller; 6. Spiral teeth; 7. Rectifier blades;

[0016] 21. Self-priming booster section; 211. Liquid inlet; 212. Boosting chamber; 22. Spiral section; 221. Fixed teeth; 23. Rectification section; 231. Liquid outlet. DETAILED DESCRIPTION

[0017] The following is combined with Figures 1 to 3 The principles and features of the present invention are described, and the examples given are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described in more detail by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0018] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0020] Please combine Figures 1 to 3 As shown, the present invention provides a labyrinth screw pump with an open impeller and a vortex impeller, comprising a motor 1 and a pump body 2, wherein a rotor 3 is rotatably mounted in the pump body 2, and one end of the rotor 3 is fixedly connected to the output end of the motor 1; the pump body 2 is composed of a plurality of parts, namely a self-priming boosting section 21, a spiral section 22 and a rectifying section 23, wherein the spiral section 22 is fixedly mounted between the self-priming boosting section 21 and the rectifying section 23, a liquid inlet 211 is fixedly mounted on the self-priming boosting section 21, a liquid outlet 231 is fixedly mounted on the rectifying section 23, and a boosting chamber 212 is arranged in the self-priming boosting section 21; a fixed tooth 221 is fixedly mounted on the inner surface of the spiral section 22, and a spiral tooth 6 is fixedly mounted on the outer surface of the rotor 3 and located in the spiral section 22;

[0021] An open impeller 4 and a vortex impeller 5 are fixedly installed on the rotor 3 and located in the boost chamber 212, wherein the vortex impeller 5 is installed on a side close to the spiral section 22, and the open impeller 4 and the vortex impeller 5 rotate synchronously with the rotor 3. During the rotation of the open impeller 4, the boost chamber 212 is in a negative pressure state, and the liquid is sucked into the boost chamber 212; at the same time, during the rotation of the vortex impeller 5, the liquid is further pressurized, and the vortex impeller 5 rotates at a high speed to form a longitudinal vortex, so that the liquid circulates multiple times in the boost chamber 212 and obtains energy, thereby achieving a high head, so that the liquid in a high-pressure state enters the spiral section 22, and the water output at the liquid outlet 231 is higher;

[0022] A rectifying blade 7 is fixedly installed on the outer surface of the rotor 3 and located in the rectifying section 23; when the labyrinth screw pump is used to transport a mixture of gas and liquid, the rectifying blade 7 rectify the gas-liquid mixture passing through the spiral section 22, which can promote the mixing effect of the gas and liquid;

[0023] An annular gap is provided in the spiral section 22, which divides the spiral teeth 6 and the fixed teeth 221 into two parts, one of which is three times longer than the other part, and the other part is closer to the self-priming boost section 21. After the gas-liquid mixture passes over a part of the spiral teeth 6 and the fixed teeth 221, it converges into the annular gap, so that the gas and liquid are mixed once in the annular gap to enhance the mixing effect of the gas and liquid; the other part is closer to the self-priming boost section 21, so that the gas and liquid still have a large pressure when entering the annular gap, the gas and liquid have a greater impact when entering the annular gap, and the gas and liquid are mixed more fully.

[0024] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A labyrinth screw pump with an open impeller and a vortex impeller, comprising a motor (1) and a pump body (2), wherein a rotor (3) is rotatably mounted in the pump body (2), and one end of the rotor (3) is fixedly connected to the output end of the motor (1); the pump body (2) is composed of a plurality of parts, namely a self-priming boosting section (21), a spiral section (22) and a rectifying section (23), wherein the spiral section (22) is fixedly mounted between the self-priming boosting section (21) and the rectifying section (23), wherein a liquid inlet (211) is fixedly mounted on the self-priming boosting section (21), a liquid outlet (231) is fixedly arranged on the rectifying section (23), and a boosting chamber (212) is arranged in the self-priming boosting section (21); a fixed tooth (221) is fixedly mounted on the inner surface of the spiral section (22), and a spiral tooth (6) is fixedly mounted on the outer surface of the rotor (3) and located in the spiral section (22), characterized in that: An open impeller (4) and a vortex impeller (5) are fixedly mounted on the rotor (3) and located in the boost chamber (212), wherein the vortex impeller (5) is mounted on a side close to the spiral section (22).

2. A labyrinth screw pump with an open impeller and a vortex impeller according to claim 1, characterized in that: A rectifying blade (7) is fixedly mounted on the outer surface of the rotor (3) and located inside the rectifying section (23).

3. A labyrinth screw pump with an open impeller and a vortex impeller according to claim 1, characterized in that: An annular gap is provided in the spiral section (22), and the annular gap divides the spiral teeth (6) and the fixed teeth (221) into two parts, wherein the length of one part is three times the length of the other part, and the other part is closer to the self-priming and boosting section (21).

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