Spiral mortar pump

Abstract

The utility model relates to the technical field of mortar pumps, and discloses a spiral mortar pump which comprises a pump body, the pump body comprises a pump cavity, a fluid inlet and a fluid outlet, the pump cavity is communicated with the fluid inlet and the fluid outlet, and a fluid inflow channel is formed between the pump cavity and the fluid inlet; and the impeller is rotationally arranged in the pump body and comprises an impeller body and blades, and the tops of the blades spirally extend into the fluid inflow channel. A fluid inlet is formed in the pump cavity, a fluid inlet channel is formed between the pump cavity and the fluid inlet, the top of the blade spirally extends into the fluid inlet channel, after mortar enters from the fluid inlet, the blade can effectively conduct drainage in the fluid inlet channel, flow guiding starts at the position of the fluid inlet, perpendicularity of the cutting face, making contact with the mortar, between the blade and the mortar is reduced, and therefore the cutting efficiency is improved. Blade abrasion is reduced, and the service life of the pump is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of mortar pump technology, and in particular to a spiral mortar pump. Background Technology

[0002] The mortar pump is a cantilevered single-stage single-suction centrifugal pump, specifically designed and developed for conveying corrosive media containing fine particles. The pump is made of steel-lined ultra-high molecular weight polyethylene (UHMW-PE), which is the latest generation of corrosion-resistant and wear-resistant engineering plastics for pumps. Its most outstanding advantages are that it has the best wear resistance, impact resistance (especially low-temperature impact resistance), creep resistance (resistance to environmental stress cracking), and excellent corrosion resistance among all plastics.

[0003] The speed of a mortar pump is generally between 1400 RPM and 1500 RPM. The mortar pump includes a pump body, which contains a pump chamber. The impeller is installed in the pump chamber. The top of the pump body has a fluid inlet, and the side of the pump body has a fluid outlet. When the mortar enters the pump chamber from the fluid inlet, it directly impacts the impeller blades. During rotation, the cutting surface between the blades and the mortar will be perpendicular, so that the blades are always in a state of wear during operation. Utility Model Content

[0004] Based on the above, the purpose of this utility model is to provide a spiral mortar pump that can reduce wear on impeller blades.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a spiral mortar pump, comprising:

[0007] The pump body includes a pump chamber, a fluid inlet, and a fluid outlet, wherein the pump chamber connects the fluid inlet and the fluid outlet, and a fluid inflow channel is formed between the pump chamber and the fluid inlet;

[0008] An impeller is rotatably mounted in the pump body and includes an impeller body and blades, the tips of which extend helically into the fluid inlet channel.

[0009] Furthermore, the impeller body is a cone shape that gradually increases in size from top to bottom.

[0010] Furthermore, the blades extend spirally from the top of the impeller body to the bottom of the impeller body.

[0011] Furthermore, the blades are provided in at least two sets.

[0012] Furthermore, a spiral flow channel extending from top to bottom is formed between adjacent blades, and the spiral flow channel gradually increases in size.

[0013] Furthermore, a connection hole is formed at the center of the top of the impeller body, and the connection hole is concentric with the fluid inlet.

[0014] Furthermore, a rotating rod is provided at the center of the bottom of the impeller body.

[0015] Furthermore, a fluid outlet is formed between the pump chambers, and the fluid outlet is tangent to the side wall of the pump chamber.

[0016] The beneficial effects of this utility model are as follows:

[0017] This utility model provides a spiral mortar pump, in which a fluid inlet channel is formed between the pump chamber and the fluid inlet. The top of the blade extends spirally into the fluid inlet channel. When the mortar enters from the fluid inlet, the blade can effectively guide the flow in the fluid inlet channel. The flow is guided at the inlet position, which reduces the perpendicularity of the cutting surface between the blade and the mortar, reduces the wear of the blade, and improves the pump's life. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0019] Figure 1 This invention provides a schematic diagram of the structure of a spiral mortar pump according to an embodiment of the present invention;

[0020] Figure 2 A cross-sectional structural schematic diagram of a spiral mortar pump is provided for an embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the impeller provided in an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Pump body; 11. Pump chamber; 12. Fluid inlet; 13. Fluid outlet; 14. Fluid inlet channel; 15. Fluid outlet channel; 2. Impeller; 21. Impeller body; 211. Connecting hole; 22. Blade; 23. Rotary rod; 24. Spiral channel. Detailed Implementation

[0024] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0028] like Figures 1 to 3As shown, this utility model embodiment provides a spiral mortar pump, including: a pump body 1, which includes a pump chamber 11, a fluid inlet 12, and a fluid outlet 13. The fluid inlet 12 is located at the top of the pump body 1, and the fluid outlet 13 is located at the side of the pump body 1. The pump chamber 11 connects the fluid inlet 12 and the fluid outlet 13, so that mortar can enter from the fluid inlet 12, pass through the pump chamber 11, and be discharged from the fluid outlet 13. A fluid inlet channel 14 is formed between the pump chamber 11 and the fluid inlet 12; and an impeller 2, which is rotatably disposed within the pump body 1. The impeller includes an impeller body 21 and blades 22. The blades 22 are spirally disposed on the impeller body 21, and the top of the blades 22 spirally extends into the fluid inlet channel 14.

[0029] This utility model embodiment provides a spiral mortar pump. A fluid inlet channel 14 is formed between the pump chamber 11 and the fluid inlet 12. The top of the blade 22 extends spirally into the fluid inlet channel 14. When the mortar enters from the fluid inlet, the blade 22 can effectively guide the flow in the fluid inlet channel 14. The flow guidance begins at the fluid inlet position, reducing the perpendicularity of the cutting surface between the blade 22 and the mortar, reducing the wear of the blade 22, and improving the pump's lifespan.

[0030] In some embodiments, such as Figure 2 and 3 As shown, the impeller body 21 is a cone shape that gradually increases in size from top to bottom. Specifically, the blades 22 are spirally arranged on the impeller body 21. Due to the cone shape of the impeller body 21, the top of the impeller body 21 can be embedded into the fluid inlet channel 14, so that the blades 22 can extend into the fluid inlet channel 14 to guide the flow.

[0031] In some embodiments, such as Figure 2 and 3 As shown, the blades 22 extend spirally from the top of the impeller body 21 to the bottom of the impeller body 21. At least two sets of blades 22 are provided. A spiral flow channel 24 extending downwards is formed between adjacent blades 22, and the spiral flow channel 24 gradually increases in size. Specifically, in this embodiment, the blades 22 extend spirally from the top of the impeller body 21 to the bottom of the impeller body 21, which can smoothly guide the mortar from the fluid inlet 12 to the bottom of the impeller body 21, the bottom of the impeller body 21 being the position corresponding to the fluid outlet 13. Furthermore, the spiral flow channel 24 formed between adjacent blades 22 gradually increases in size from the top to the bottom of the impeller body 21, which can effectively accelerate the flow and improve the conveying efficiency.

[0032] In some embodiments, such as Figure 2 and 3As shown, a connecting hole 211 is located at the center of the top of the impeller body 21, and the connecting hole 211 is concentric with the fluid inlet 12. Specifically, the connecting hole 211 can be connected to the output shaft of a drive motor, which passes through the fluid inlet 12 and connects to the connecting hole 211. The drive motor drives the impeller body 21 to rotate, causing the entire impeller 2 to rotate.

[0033] In some embodiments, such as Figure 2 As shown, a rotating rod 23 is provided at the center of the bottom of the impeller body 21. Specifically, the rotating rod 23 at the bottom of the impeller body 21 is rotatably connected to the center of the bottom of the pump chamber 11, so that the impeller 2 remains stable when rotating.

[0034] In some embodiments, such as Figure 1 As shown, the fluid outlet 13 forms a fluid outlet channel 15 between the pump chamber 11 and the fluid outlet channel 15, which is tangent to the side wall of the pump chamber 11. Specifically, after the mortar is guided and transported by the impeller 2, it will adhere tightly to the side wall of the pump chamber 11. The fluid outlet channel 15 is tangent to the side wall of the pump chamber 11, allowing the mortar to be discharged smoothly and improving the conveying efficiency.

[0035] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A spiral mortar pump, characterized in that, include: The pump body (1) includes a pump chamber (11), a fluid inlet (12) and a fluid outlet (13). The pump chamber (11) connects the fluid inlet (12) and the fluid outlet (13). A fluid inlet channel (14) is formed between the pump chamber (11) and the fluid inlet (12). An impeller (2) is rotatably disposed within the pump body (1), comprising an impeller body (21) and blades (22), the top of which extends spirally into the fluid inlet channel (14).

2. The spiral mortar pump according to claim 1, characterized in that, The impeller body (21) is cone-shaped, gradually increasing in size from top to bottom.

3. A spiral mortar pump according to claim 2, characterized in that, The blade (22) extends spirally from the top of the impeller body (21) to the bottom of the impeller body (21).

4. A spiral mortar pump according to claim 3, characterized in that, The blades (22) are provided in at least two sets.

5. A spiral mortar pump according to claim 4, characterized in that, A spiral flow channel (24) extending from top to bottom is formed between adjacent blades (22), and the spiral flow channel (24) gradually increases in size.

6. A spiral mortar pump according to any one of claims 1 to 5, characterized in that, A connecting hole (211) is provided at the center of the top of the impeller body (21), and the connecting hole (211) is concentric with the fluid inlet (12).

7. A spiral mortar pump according to claim 5, characterized in that, A rotating rod (23) is provided at the center of the bottom of the impeller body (21).

8. A spiral mortar pump according to claim 1, characterized in that, The fluid outlet (13) forms a fluid outlet channel (15) between the pump chamber (11), and the fluid outlet channel (15) is tangent to the side wall of the pump chamber (11).

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