A centrifugal high-pressure drip irrigation self-priming pump

Abstract

This utility model discloses a centrifugal high-pressure drip irrigation self-priming pump, including a pump body, which is a welded steel plate structure. The pump body includes an outer pump body shell and two side plates welded to the two sides of the outer pump body shell, respectively. A vortex chamber flow channel plate, a vortex chamber main plate, and a vortex pump retainer are sequentially welded to the inner side of the first side plate to form an impeller chamber. A U-shaped groove and a U-shaped groove baffle are sequentially welded to the inner side of the second side plate. The center hole of the vortex pump retainer corresponds to the center of the lower opening of the U-shaped groove. By using a welded steel plate pump body structure instead of traditional gray iron casting, the pump body's anti-freezing and anti-cracking performance and impact resistance are significantly improved, greatly extending its service life. The addition of a cleaning port, coaxially designed with the impeller chamber and U-shaped groove, allows for rapid unblocking of debris. An inclined inlet sleeve prevents bending of the water pipe. The integration of a fertilizer hole and a water supply hole achieves integrated irrigation and fertilization and convenient water replenishment.

Description

Technical Field

[0001] This utility model relates to the field of agricultural irrigation equipment technology, specifically to a centrifugal high-pressure drip irrigation self-priming pump. Background Technology

[0002] Centrifugal self-priming pumps are widely used in high-pressure irrigation scenarios such as agricultural drip irrigation and sprinkler irrigation. Currently, most mainstream products on the market use gray iron casting for their pump bodies. This material has significant drawbacks: in cold climates, gray iron pump bodies have a high coefficient of thermal expansion and contraction and are highly brittle, making them prone to freezing and cracking due to residual water inside; at the same time, the cast structure has poor impact resistance, making it extremely susceptible to breakage during transportation, installation, or use, significantly shortening the equipment's lifespan. Damaged pump bodies cannot be repaired, and frequent replacements greatly increase user maintenance costs, especially limiting the reliability of irrigation operations in winter.

[0003] Furthermore, traditional gray cast iron self-priming pumps have functional limitations: their enclosed structure makes it difficult to quickly clean the internal impeller chamber and flow channels when blocked, requiring complete disassembly and repair; irrigation systems require additional fertilization devices, increasing pipeline complexity; and the inlet is often a horizontal straight pipe design, making the connecting water hose prone to bending and affecting suction efficiency. Current technologies have not effectively resolved the defects in pump body materials and the issue of functional expansion, thus limiting the overall performance and applicable scenarios of high-pressure irrigation equipment. Utility Model Content

[0004] In view of the above-mentioned technical problems in related technologies, this utility model proposes a centrifugal high-pressure drip irrigation self-priming pump, which can overcome the above-mentioned shortcomings of the prior art.

[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows: A centrifugal high-pressure drip irrigation self-priming pump; The centrifugal high-pressure drip irrigation self-priming pump includes a pump body, which is a welded steel plate structure. The pump body includes an outer pump body shell and two side plates welded to the two sides of the outer pump body shell, respectively. A vortex chamber flow channel plate, a vortex chamber main plate, and a vortex pump retaining ring are sequentially welded to the inner side of the first side plate to form an impeller chamber. A U-shaped groove and a U-shaped groove baffle are sequentially welded to the inner side of the second side plate. The center hole of the vortex pump retaining ring corresponds to the center of the lower opening of the U-shaped groove.

[0006] Furthermore, the outer body of the pump body is made of a rectangular steel plate bent into a frame with an open top, and its bottom is arc-shaped and has a welding interface. The outer contours of the first pump body side plate and the second pump body side plate match the opening shape of the outer body of the pump body.

[0007] Furthermore, the pump body side plate 2 has an inlet at the upper part and a cleaning port in the middle, and both the inlet and the cleaning port are connected to the inner cavity of the U-shaped groove.

[0008] Furthermore, the central axis of the cleaning port is coaxially aligned with the central hole of the vortex pump retainer and the opening below the U-shaped groove.

[0009] Furthermore, the pump body housing has an outlet at the top, which is located directly above the vortex chamber flow channel plate and the vortex chamber main plate. The top of the vortex chamber flow channel plate and the top of the vortex chamber main plate are welded and sealed to the inner wall of the top of the pump body housing.

[0010] Furthermore, an inlet connecting plate is welded to the outside of the inlet, and the inlet connecting plate is connected to the downwardly inclined inlet sleeve.

[0011] Furthermore, the inlet sleeve is provided with a fertilizer hole, which is connected to the fertilizer tank through a pipeline.

[0012] Furthermore, an outlet connecting plate is welded to the outlet, which is connected to the outlet sleeve, and the outlet sleeve is provided with a water supply hole.

[0013] Furthermore, a water inlet hole is provided on the top of the outer body of the pump housing, and the water inlet hole is located on the outside of the U-shaped groove.

[0014] Furthermore, the pump body is provided with a drain hole at the bottom, and the steel plate is made of Q235B carbon steel.

[0015] The beneficial effects of this utility model are as follows: by adopting a steel plate welded pump body structure instead of the traditional gray iron casting, the pump body's antifreeze and anti-cracking performance and impact resistance are significantly improved, greatly extending its service life; by adding a cleaning port and keeping it coaxial with the impeller chamber and U-shaped groove, debris can be quickly cleared when blocked; the inclined inlet sleeve avoids bending of the water pipe; and by integrating the fertilizer hole and water replenishment hole, the effect of integrated irrigation and fertilization and convenient equipment water replenishment is achieved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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 these drawings without creative effort.

[0017] Figure 1 This is a perspective view of a centrifugal high-pressure drip irrigation self-priming pump according to an embodiment of the present utility model; Figure 2 This is a side view of a centrifugal high-pressure drip irrigation self-priming pump according to an embodiment of the present utility model; Figure 3This is an exploded view of a centrifugal high-pressure drip irrigation self-priming pump according to an embodiment of the present utility model; In the diagram: 1. Pump body casing; 2. Pump body side plate one; 3. Vortex chamber flow channel plate; 4. Vortex chamber main plate; 5. Vortex pump retaining ring; 6. U-shaped groove; 7. U-shaped groove baffle; 8. Pump body side plate two; 9. Impeller assembly connecting plate; 10. Inlet connecting plate; 11. Impeller port; 12. Impeller chamber; 13. Inlet; 14. Outlet; 15. Cleaning port; 16. Outlet connecting plate; 17. Drain hole; 18. Water filling hole; 19. Welded joint; 20. Inlet sleeve; 21. Outlet sleeve; 22. Fertilizer hole; 23. Water replenishment hole; 24. Impeller assembly; 25. Support leg; 26. Pulley. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art are within the protection scope of the present utility model.

[0019] It should be understood that in the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, 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 the embodiments of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0020] like Figure 1-3As shown in the embodiment of this utility model, a centrifugal high-pressure drip irrigation self-priming pump includes a pump body, which is a welded steel plate structure. The pump body includes an outer body 1, a pump body side plate 1 and a second pump body side plate 8 welded to both sides of the outer body 1. A vortex chamber flow channel plate 3, a vortex chamber main plate 4 and a vortex pump retaining ring 5 are sequentially welded to the inner side of the first pump body side plate 2 to form an impeller chamber 12. A U-shaped groove 6 and a U-shaped groove baffle 7 are sequentially welded to the inner side of the second pump body side plate 8. The center hole of the vortex pump retaining ring 5 corresponds to the center of the lower opening of the U-shaped groove 6.

[0021] According to an embodiment of the present invention, a centrifugal high-pressure drip irrigation self-priming pump is provided. In a specific embodiment, the outer body 1 of the pump body is made of a rectangular steel plate bent into a frame with an open top. Its bottom is arc-shaped and has a welding interface 19. The outer contours of the pump body side plate 1 2 and the pump body side plate 2 8 match the opening shape of the pump body outer body 1.

[0022] According to an embodiment of the present invention, a centrifugal high-pressure drip irrigation self-priming pump is provided in a specific embodiment, wherein the upper part of the pump body side plate 8 is provided with a water inlet 13 and the middle part is provided with a cleaning port 15, and both the water inlet 13 and the cleaning port 15 are connected to the inner cavity of the U-shaped groove 6.

[0023] According to an embodiment of the present invention, a centrifugal high-pressure drip irrigation self-priming pump is provided, in a specific embodiment, the central axis of the cleaning port 15 is coaxially arranged with the central hole of the vortex pump retainer 5 and the lower opening of the U-shaped groove 6.

[0024] According to an embodiment of the present invention, a centrifugal high-pressure drip irrigation self-priming pump is provided at the top of the pump body shell 1. The outlet 14 is located directly above the vortex chamber flow channel plate 3 and the vortex chamber main plate 4, and the top of the vortex chamber flow channel plate 3 and the top of the vortex chamber main plate 4 are welded and sealed to the inner wall of the top of the pump body shell 1.

[0025] According to an embodiment of the present invention, a centrifugal high-pressure drip irrigation self-priming pump is provided. In a specific embodiment, an inlet connecting plate 10 is welded to the outside of the inlet 13, and the inlet connecting plate 10 is connected to a downwardly inclined inlet sleeve 20.

[0026] According to an embodiment of the present invention, a centrifugal high-pressure drip irrigation self-priming pump is provided with a fertilizer hole 22 on the inlet sleeve 20 in a specific embodiment. The fertilizer hole 22 is connected to the fertilizer tank through a pipeline.

[0027] According to an embodiment of the present invention, a centrifugal high-pressure drip irrigation self-priming pump is provided. In a specific embodiment, an outlet connecting plate 16 is welded to the outlet 14. The outlet connecting plate 16 is connected to the outlet sleeve 21, and the outlet sleeve 21 is provided with a water replenishment hole 23.

[0028] According to an embodiment of the present invention, a centrifugal high-pressure drip irrigation self-priming pump is provided with a water inlet 18 on the top of the outer body 1 of the pump body, which is located on the outside of the U-shaped groove 6.

[0029] According to an embodiment of the present invention, a centrifugal high-pressure drip irrigation self-priming pump is provided at the bottom of the pump body with a drain hole 17, and the steel plate is made of Q235B carbon steel.

[0030] To facilitate understanding of the above-mentioned technical solutions of this utility model, the following detailed description of the above-mentioned technical solutions of this utility model is provided through specific usage methods.

[0031] In practical use, the centrifugal high-pressure drip irrigation self-priming pump according to this utility model includes a pump body, which is welded from steel plates.

[0032] The pump body consists of the outer body of the pump body shell, the first side plate of the pump body, the vortex chamber flow channel plate, the main body of the vortex chamber, the vortex pump retaining ring, the U-shaped groove, the U-shaped groove baffle, and the second side plate of the pump body.

[0033] The outer body of the pump casing is a frame formed by bending a rectangular plate, with a welded joint at the bottom. The bottom is arc-shaped, and the shapes of the first and second side plates of the pump body correspond to the shape of the opening of the outer body of the pump casing.

[0034] The pump body side plate is sequentially welded to the vortex chamber flow channel plate, the vortex chamber main plate, and the vortex pump retaining ring to form the impeller chamber. The lower part of the pump body side plate is provided with an impeller port. The impeller assembly connecting plate is welded to the outside of the impeller port. At the center position corresponding to the impeller port, the impeller inner port on the vortex chamber main plate and the center position of the vortex pump retaining ring are aligned.

[0035] The pump body side plate 2 is welded to the U-shaped groove and the U-shaped groove baffle in sequence. The upper part of the pump body side plate 2 is provided with a water inlet and the middle part is provided with a cleaning port. The upper part of the U-shaped groove is inclined and the top and the upper left half of the diagram are sealed by the U-shaped groove baffle. The lower part is opposite to the vortex pump buckle. The right side of the U-shaped groove in the diagram is welded to the inner side of the pump body side plate 2. The water inlet and the cleaning port are connected to the inner cavity of the U-shaped groove, forming a semi-closed space. The water inlet connecting plate is welded to the outside of the water inlet. The inner and outer sides of the docking edge of the pump body shell and the pump body side plate 2 are welded to form an integral structure.

[0036] Finally, the outer body of the pump casing is welded to the outer edge of the pump side plate, and the center hole of the vortex pump retainer corresponds to the center of the opening below the U-shaped groove.

[0037] After welding, an outlet is opened on the top of the pump body shell and directly above the outlet of the vortex chamber. The top of the vortex chamber flow channel plate and the top of the vortex chamber main plate are welded to the inner wall of the top of the pump body shell. An inlet connection plate is welded at the outlet.

[0038] The return water hole generates negative pressure when the vortex pump is running, which removes air, compensates for water flow, replenishes liquid, and generates centrifugal force to achieve the purpose of circulating vacuum self-priming.

[0039] A water inlet is provided on the top of the pump casing and the outside of the U-shaped groove to add priming water (to enhance negative pressure).

[0040] The inlet connector plate connects to the inlet sleeve, which is tilted downwards to facilitate connection to the water source via pipeline and prevent pipe kinking. The inlet sleeve has a fertilizer application hole, which connects to a fertilizer tank via pipeline. Fertilization is performed during operation through the pump's self-priming mechanism.

[0041] The outlet connector plate connects to the outlet sleeve, through which the pipeline is led to the irrigation area. The outlet sleeve is equipped with a water inlet hole for adding water to the engine and fertilizer tank.

[0042] The cleaning port should be aligned with the impeller assembly, impeller inlet, impeller inner inlet, vortex pump retaining ring, and U-shaped groove to remove debris.

[0043] A drain hole is also provided at the bottom below the cleaning port, so that the water inside the pump body can be emptied when not in use.

[0044] The pump body of this utility model is welded from steel plate. The steel plate is made of Q235B carbon steel and has a long service life.

[0045] The pump body of this invention has a cleaning port for cleaning internal debris.

[0046] In summary, by employing the above-mentioned technical solution of this utility model, the pump body structure is replaced by a welded steel plate structure, which significantly improves the pump body's resistance to freezing and cracking, as well as its impact resistance, thereby greatly extending its service life. The addition of a cleaning port, coaxially designed with the impeller chamber and U-shaped groove, allows for rapid unblocking of debris. The inclined inlet sleeve prevents the water pipe from bending. Furthermore, the integration of fertilizer and water supply holes achieves integrated irrigation and fertilization, as well as convenient water replenishment.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centrifugal high pressure drop sprinkler self-priming pump characterized by, The pump body is a welded steel plate structure. The pump body includes an outer body (1) of the pump body shell, a first pump body side plate (2) and a second pump body side plate (8) welded to both sides of the outer body (1). The inner side of the first pump body side plate (2) is sequentially welded with a vortex chamber flow channel plate (3), a vortex chamber main plate (4) and a vortex pump retainer (5) to form an impeller chamber (12). The inner side of the second pump body side plate (8) is sequentially welded with a U-shaped groove (6) and a U-shaped groove baffle (7). The center hole of the vortex pump retainer (5) corresponds to the center of the lower opening of the U-shaped groove (6).

2. A centrifugal high pressure drop sprinkler self-priming pump according to claim 1, characterized in that, The outer body (1) of the pump body is made of a rectangular steel plate bent into a frame with an open top. Its bottom is arc-shaped and has a welding interface (19). The outer contours of the pump body side plate 1 (2) and the pump body side plate 2 (8) match the opening shape of the pump body outer body (1).

3. A centrifugal high-pressure drip irrigation self-priming pump according to claim 1, characterized in that, The pump body side plate 2 (8) is provided with an inlet (13) at the top and a cleaning port (15) in the middle. Both the inlet (13) and the cleaning port (15) are connected to the inner cavity of the U-shaped groove (6).

4. A centrifugal high pressure drop self-priming pump according to claim 3, wherein, The central axis of the cleaning port (15) is coaxial with the central hole of the vortex pump retainer (5) and the lower opening of the U-shaped groove (6).

5. A centrifugal high pressure drop sprinkler self-priming pump according to claim 1, wherein, The pump body housing (1) has an outlet (14) at the top. The outlet (14) is located directly above the vortex chamber flow channel plate (3) and the vortex chamber main plate (4). The top of the vortex chamber flow channel plate (3) and the top of the vortex chamber main plate (4) are welded and sealed to the inner wall of the top of the pump body housing (1).

6. A centrifugal high pressure drop self-priming pump according to claim 3, wherein, The inlet (13) is welded to an inlet connecting plate (10), which is connected to a downwardly inclined inlet sleeve (20).

7. A centrifugal high pressure drop self-priming pump according to claim 6, wherein, The inlet sleeve (20) is provided with a fertilizer hole (22), which is connected to the fertilizer tank through a pipeline.

8. A centrifugal high pressure drop self-priming pump according to claim 5, wherein, A water outlet connecting plate (16) is welded at the water outlet (14), and the water outlet connecting plate (16) is connected to the water outlet sleeve (21). The water outlet sleeve (21) is provided with a water replenishment hole (23).

9. A centrifugal high pressure drop sprinkler self-priming pump according to claim 1, characterized in that, The pump body housing (1) has a water inlet (18) at the top, which is located on the outside of the U-shaped groove (6).

10. A centrifugal high pressure drop sprinkler self-priming pump as claimed in claim 1 wherein, The pump body is provided with a drain hole (17) at the bottom, and the pump body is made of Q235B carbon steel.

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