A powerful self-priming pump

Abstract

The utility model provides a kind of strong self-priming pump, belong to pump body equipment technical field;Including chassis, the upper assembly of chassis is equipped with centrifugal pump, vacuum pump, control electric box and circulating water tank;One end of the centrifugal pump is provided with liquid inlet pipe, the other end is provided with liquid outlet pipe, the liquid outlet pipe upper is provided with float ball tank and check valve;Vacuum pump is connected with float ball tank by air suction pipe and solenoid valve, the inside installation of float ball tank has micro float ball;Vacuum pump is also connected with circulating water tank by water suction pipe.The utility model is reasonably combined by centrifugal pump and vacuum pump, realize 8-10 meters high suction, without adding bottom valve, simultaneously using micro float ball and the linkage control of control electric box, promote start-stop response speed and operating reliability.

Description

Technical Field

[0001] This utility model provides a powerful self-priming pump, belonging to the technical field of pump body equipment. Background Technology

[0002] Self-priming pumps, which automatically start pumping liquid without requiring the suction pipe to be filled with liquid, are widely used in water supply and drainage, chemical industry, agricultural irrigation, and other fields. Existing self-priming pumps mostly employ a single centrifugal pump structure, resulting in weak self-priming capabilities and a suction lift typically not exceeding 5 meters, making it difficult to meet the needs of deep liquid extraction. Furthermore, traditional self-priming pumps require a foot valve at the end of the inlet pipe to prevent backflow of liquid into the pump chamber after shutdown. This not only increases installation costs and pipeline resistance but also makes the pump prone to malfunction due to foot valve blockage, affecting operational stability. In addition, some combined self-priming pumps suffer from complex control logic and untimely start / stop responses, failing to accurately adjust their operating status according to the liquid state within the pump chamber, thus reducing operational efficiency.

[0003] Therefore, in view of this, we studied and improved the existing structure and proposed a powerful self-priming pump to solve the above-mentioned problems. Utility Model Content

[0004] To address the problems of short suction lift, need for foot valve, poor operational stability, and insufficient control precision in existing self-priming pumps, this utility model provides a powerful self-priming pump that achieves a high suction lift of 8-10 meters through a reasonable combination of a centrifugal pump and a vacuum pump, eliminating the need for a foot valve. At the same time, it utilizes the linkage control between a miniature float and the control box to improve start-stop response speed and operational reliability.

[0005] To solve the above problems, the proposed technical solution is as follows: a powerful self-priming pump, including a chassis, on which a centrifugal pump, a vacuum pump, a control box, and a circulating water tank are mounted; one end of the centrifugal pump is provided with an inlet pipe, and the other end is provided with an outlet pipe, with a float box and a check valve above the outlet pipe; the vacuum pump is connected to a solenoid valve and the float box through an air suction pipe, and a miniature float is installed inside the float box; the vacuum pump is also connected to the circulating water tank through a water suction pipe.

[0006] Furthermore, the powerful self-priming pump is a self-priming centrifugal pump formed by combining a vacuum pump and a centrifugal pump, and the pipeline does not require the installation of a foot valve.

[0007] Furthermore, the miniature float is used to send signals to the control box to control the start of the centrifugal pump.

[0008] Furthermore, the suction lift of the powerful self-priming pump is - meters.

[0009] Furthermore, the centrifugal pump discharges the liquid in the float box into the pump chamber under the pressure of the impeller.

[0010] Furthermore, the vacuum pump creates a vacuum in the pump body by using air in the exhaust pipe.

[0011] Due to the adoption of the above technical solution, the beneficial effects of this utility model's powerful self-priming pump are as follows:

[0012] 1. Significant suction lift advantage: Through the combination design of vacuum pump and centrifugal pump, the pump body suction lift reaches 8-10 meters, which is much higher than that of traditional self-priming pumps. It can efficiently pump deep liquids and has a wider range of applications.

[0013] 2. No foot valve required: The self-priming centrifugal pump structure utilizes the vacuum created by the vacuum pump to prevent liquid backflow, eliminating the need for a foot valve installation, reducing pipeline resistance and equipment costs, and minimizing blockage failures.

[0014] 3. Precise and reliable control: The miniature float in the float box can monitor the liquid status in real time and send signals to the control box in a timely manner to realize the automatic start and stop of the centrifugal pump. The response speed is fast and avoids damage from dry running.

[0015] 4. Compact and reasonable structure: All components are integrated and assembled on the chassis, with a compact layout, small space occupation, and easy installation and movement. At the same time, the cooperation between the circulating water tank and the vacuum pump ensures the stability of vacuum formation.

[0016] 5. High efficiency and stable operation: The check valve further prevents liquid backflow, and the centrifugal pump impeller pressure discharge ensures continuous delivery. The overall structural design reduces the failure rate and extends the service life of the equipment. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a perspective view of a powerful self-priming pump according to the present invention.

[0019] Figure 2 The facade of a powerful self-priming pump according to this utility model. Figure 1 .

[0020] Figure 3 The facade of a powerful self-priming pump according to this utility model. Figure 2 .

[0021] In the picture:

[0022] 1. Chassis; 2. Centrifugal pump; 3. Vacuum pump; 4. Control box; 5. Circulating water tank; 6. Suction pipe; 7. Liquid inlet; 8. Liquid outlet; 9. Float box; 10. Check valve; 11. Solenoid valve; 12. Exhaust pipe. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The technical background of this application fully explains the problems of the prior art, and there are no overarching or general issues. The following utility model content and specific embodiments describe in detail the problems that this application needs to solve, clarify the technical problems that the technical solution needs to solve, and determine that the technical solution of this application has beneficial effects compared with the objective prior art.

[0025] Please see Figure 1-3 As shown: This utility model provides a powerful self-priming pump, including a chassis 1, on which a centrifugal pump 2, a vacuum pump 3, a control box 4, and a circulating water tank 5 are mounted; one end of the centrifugal pump 2 is provided with an inlet pipe, and the other end is provided with an outlet pipe, with a float box 9 and a check valve 10 above the outlet pipe; the vacuum pump 3 is connected to a solenoid valve 11 and the float box 9 through an air suction pipe 6, and a miniature float is installed inside the float box 9; the vacuum pump 3 is also connected to the circulating water tank 5 through a water suction pipe.

[0026] The powerful self-priming pump is a self-priming centrifugal pump 2 formed by combining a vacuum pump 3 and a centrifugal pump 2, and the pipeline does not require a foot valve.

[0027] The miniature float is used to send signals to the control box 4 to control the start of the centrifugal pump 2.

[0028] The suction lift of the powerful self-priming pump is 8-10 meters.

[0029] The centrifugal pump 2 discharges the liquid in the float box 9 into the pump chamber under the action of impeller pressure.

[0030] The vacuum pump 3 uses the air in the exhaust pipe 12 to create a vacuum in the pump body.

[0031] The principle of this utility model of a powerful self-priming pump is as follows:

[0032] After the equipment is started, the control box 4 first controls the vacuum pump 3 to start, and the solenoid valve 11 opens. The vacuum pump 3 draws air from the float box 9 and pipeline through the suction pipe 6 and discharges it through the exhaust pipe 12, creating a vacuum in the pipeline. When the liquid in the inlet pipe is drawn into the float box 9 under atmospheric pressure and the liquid level reaches the preset height, the micro float triggers a signal and sends it to the control box 4. After receiving the signal, the control box 4 controls the centrifugal pump 2 to start, and at the same time controls the vacuum pump 3 to stop working and the solenoid valve 11 to close. After the centrifugal pump 2 starts, the impeller rotates and generates pressure, which discharges the liquid in the float box 9 and pump chamber through the outlet pipe. The check valve 10 prevents the liquid from flowing back. When the liquid extraction is completed or the liquid level is lower than the preset value, the micro float sends a stop signal, and the control box 4 controls the centrifugal pump 2 to stop working, completing one working cycle.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A strong self-priming pump characterized in that, The system includes a chassis (1), on which a centrifugal pump (2), a vacuum pump (3), a control box (4), and a circulating water tank (5) are mounted. One end of the centrifugal pump (2) is provided with an inlet pipe, and the other end is provided with an outlet pipe. A float box (9) and a check valve (10) are provided above the outlet pipe. The vacuum pump (3) is connected to a solenoid valve (11) and the float box (9) through an air suction pipe (6). A miniature float is installed inside the float box (9). The vacuum pump (3) is also connected to the circulating water tank (5) through a water suction pipe.

2. A strong self-priming pump according to claim 1, characterized in that: The powerful self-priming pump is a self-priming centrifugal pump (2) formed by combining a vacuum pump (3) and a centrifugal pump (2), and the pipeline does not need to be equipped with a foot valve.

3. The powerful self-priming pump according to claim 1, characterized in that: The miniature float is used to send a signal to the control box (4) to control the start of the centrifugal pump (2).

4. A strong self-priming pump according to claim 1, characterized in that: The suction lift of the powerful self-priming pump is 8-10 meters.

5. A strong self-priming pump according to claim 1, characterized in that: The centrifugal pump (2) discharges the liquid in the float box (9) into the pump chamber under the action of impeller pressure.

6. A strong self-priming pump according to claim 1, characterized in that: The vacuum pump (3) creates a vacuum in the pump body by passing air through the exhaust pipe (12).

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