CN214577770U - Centrifugal water pump device capable of improving water absorption height - Google Patents

Abstract

The utility model discloses a can improve centrifugal water pump device of height of absorbing water, including fixing the installation base at the well limit that absorbs water, install the centrifugal water pump body and motor on the installation base, the centrifugal water pump body is connected with the motor, be connected with the inlet tube on the water inlet of the centrifugal water pump body, the inlet tube is connected with the suction pipe through the elbow that intakes, the suction pipe stretches into in the suction well and the bottom of suction pipe is connected with the deep well immersible pump through the elbow that absorbs water, the delivery port of the centrifugal water pump body is connected with discharge gate valve and wet return respectively, the last drain pipe that is connected with of discharge gate valve, install the return gate valve on the upper end of wet return and drain connection and the wet return, still be connected with the overflow pipe on the drain pipe, install the overflow gate valve on the overflow pipe. The utility model discloses can improve the height of absorbing water of the centrifugal pump body, especially in some high altitude area, under the extremely low environment of atmospheric pressure, can realize that the centrifugal pump body normally inhales, the drainage, the practicality is strong.

Description

Centrifugal water pump device capable of improving water absorption height

Technical Field

The utility model belongs to the technical field of the water pump, concretely relates to can improve centrifugal water pump device of height that absorbs water.

Background

Before the centrifugal water pump works, the air in the pump body and the water suction pipe needs to be exhausted and is in a vacuum state. When the centrifugal water pump operates normally, liquid in the water suction well is pressed into the water suction pipe under the action of external atmospheric pressure and enters the pump body (like the liquid is sucked into the pump body by the water pump), and the liquid is quickly thrown away from the pump body through the water discharge pipe under the action of centrifugal force generated by high-speed rotation of the impeller of the centrifugal water pump, so that normal water drainage is realized. By the formula: the water absorption height = local atmospheric pressure-cavitation allowance-other factors can be known, and the theoretical water absorption height of the local can be calculated under the environment of standard atmospheric pressure, but in the actual engineering, the water absorption height is smaller due to the influences of local altitude, atmospheric pressure, cavitation allowance of the pump body, pipe resistance of the water absorption pipe, air tightness of the water absorption pipe and the like, and even the problem that the water cannot be absorbed normally in some areas due to extremely low atmospheric pressure exists. In addition, sundries in the water absorption well easily block a water absorption pipe of the centrifugal water pump, and the sundries are not easy to clean.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem existing in the prior art and providing a centrifugal water pump device which has simple structure, convenient installation and high working efficiency and can improve the water absorption height.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a can improve centrifugal pump device of height of absorbing water, is including fixing the installation base at the well limit of the well that absorbs water, install the centrifugal pump body and motor on the installation base, the centrifugal pump body is connected with the motor, be connected with the inlet tube on the water inlet of the centrifugal pump body, the inlet tube is connected with the pipe that absorbs water through the elbow of intaking, the pipe that absorbs water stretches into in the well that absorbs water and the bottom of the pipe that absorbs water is connected with the deep well immersible pump through the elbow that absorbs water, the delivery port of the centrifugal pump body is connected with discharge gate valve and wet return respectively, the last drain pipe that is connected with of discharge gate valve, install the return gate valve on the upper end of wet return and drain connection and the wet return, still be connected with the overflow pipe on the drain pipe, install the overflow gate valve on the overflow pipe.

Further, a check valve is installed between the drain gate valve and the drain pipe.

Furthermore, the water inlet pipe and the water suction pipe are respectively connected with the water inlet elbow through flanges, the water inlet pipe is horizontally arranged, and the water inlet pipe is vertical to the water suction pipe.

Furthermore, a pipeline support is horizontally fixed on the inner side wall of the suction well, and the suction pipe is fixed on the pipeline support.

Furthermore, a water inlet filter screen is arranged on a water inlet of the deep well submersible pump.

The utility model discloses relative prior art has following beneficial effect: the utility model discloses can improve the centrifugal pump device of height that absorbs water mainly includes the centrifugal pump body, including a motor, an end cap, a controller, and a cover plate, the pipe absorbs water, inlet tube and drain pipe, connect the deep well immersible pump through the elbow that absorbs water in the bottom of the pipe that absorbs water, can improve the height that absorbs water of the centrifugal pump body, especially in some high altitude area, under the extremely low environment of atmospheric pressure, can realize the normal absorption of the centrifugal pump body, the drainage, simultaneously in drain pipe and centrifugal pump body water leakage back, through opening the deep well immersible pump earlier with water through the pipe that absorbs water and pouring into the centrifugal pump body, can exhaust the air in the centrifugal pump body, ensure the normal work of the centrifugal pump body. In addition, the utility model is provided with the overflow pipe and the return pipe on the drain pipe, on one hand, the return pipe can pour the water reserved in the drain pipe into the centrifugal water pump body through the return pipe and the return gate valve before starting the centrifugal water pump body, so that the air in the centrifugal water pump body can be effectively emptied, and the centrifugal water pump body can be ensured to be normally started; on the other hand, when the water inlet of the deep well submersible pump is blocked by the sludge or the impurities, the sludge or the impurities are cleaned by reversely flowing water stored in the drainage pipe through the water return pipeline and the water return gate valve. The utility model has the advantages of being simple in structure and convenient in installation, work efficiency is high, has solved the actual difficult problem that highly is less than theoretical height of absorbing water or even unable normal absorption of absorbing water of job site centrifugal pump body, and the practicality is strong.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The utility model discloses the reference sign is as follows: 1. an electric motor; 2. a centrifugal water pump body; 3. a water return pipe; 4. a drain gate valve; 5. a check valve; 6. a drain pipe; 7. an overflow gate valve; 8. an overflow pipe; 9. a pipeline support; 10. a suction pipe; 11. deep well submersible pumps; 12. a water inlet filter screen; 13. a water suction elbow; 14. a suction well; 15. a flange; 16. installing a base; 17. a water inlet pipe; 18. a water inlet elbow; 19. a backwater gate valve.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in figure 1, a centrifugal water pump device capable of improving the water absorption height comprises an installation base 16 fixed at the well edge of a water absorption well 14, a centrifugal water pump body 2 and a motor 1 are installed on the installation base 16, the centrifugal water pump body 2 is connected with the motor 1, a water inlet pipe 17 is connected on a water inlet of the centrifugal water pump body 2, the water inlet pipe 17 is connected with a water absorption pipe 10 through a water inlet elbow 18, the water inlet pipe 17 and the water absorption pipe 10 are respectively connected with the water inlet elbow 18 through a flange 15, the water inlet pipe 17 is horizontally arranged, the water inlet pipe 17 is mutually vertical to the water absorption pipe 10, the water absorption pipe 10 extends into the water absorption well 14, a pipeline support 9 is horizontally fixed on the inner side wall of the water absorption well 14 (one end of the pipeline support 9 is fixed on the inner side wall of the water absorption well 14, the other end of the pipeline support 9 is suspended, and a plurality of pipeline supports 9 can be arranged as required), the water suction pipe 10 is fixed on the pipeline support 9, the bottom end of the water suction pipe 10 is connected with a deep well submersible pump 11 through a water suction elbow 13 (the deep well submersible pump 11 is a high-flow and low-lift deep well submersible pump), a water inlet filter screen 12 is installed on a water inlet of the deep well submersible pump 11, a water outlet of a centrifugal pump body 2 is respectively connected with a drain gate valve 4 and a water return pipe 3 (the water outlet of the centrifugal pump body 2 is arranged upwards, the water outlet of the centrifugal pump body 2 can be connected with the drain gate valve 4 and the water return pipe 3 through a tee joint, the drain gate valve 4 is arranged upwards), a drain pipe 6 is connected on the drain gate valve 4 (the drain pipe 6 is arranged upwards), a check valve 5 is installed between the drain gate valve 4 and the drain pipe 6, the upper end of the water return pipe 3 is connected with the drain pipe 6, a return gate valve 19 is installed on the water return pipe 3, and an overflow pipe 8 is also connected on the drain pipe 6 (the overflow pipe 8 is arranged horizontally), an overflow gate valve 7 is mounted on the overflow pipe 8.

Before starting the centrifugal water pump body 2, the check valve 5 and the drain gate valve 4 are closed, the backwater gate valve 19 is opened, the water reserved in the drain pipe 6 flows back into the centrifugal water pump body 2 through the backwater pipe 3, air in the centrifugal water pump body 2 is emptied, and the centrifugal water pump body 2 can be started smoothly and normally. When the centrifugal water pump body 2 is started, the deep well submersible pump 11 is started firstly, and water in the water suction well 14 is discharged through the deep well submersible pump 11 and then enters the centrifugal water pump body 2 through the water suction elbow 13, the water suction pipe 10, the water inlet elbow 18 and the water inlet pipe 17. And then the motor 1 is started to drive the centrifugal water pump body 2 to enable water to pass through the drainage gate valve 4, the check valve 5 and the drainage pipe 6 and then to be thrown away from the centrifugal water pump body 2 for drainage. When the sludge or the impurities block the water inlet filter screen 12 on the water inlet of the deep well submersible pump 11, the check valve 5 and the drain gate valve 4 are closed, the return gate valve 19 is opened, and the sludge or the impurities on the water inlet filter screen 12 are cleaned by utilizing the backflow of the water stored in the drain pipe 6 through the return pipe 3 and the return gate valve 19.

Claims (5)

1. The utility model provides a can improve centrifugal water pump device of height of absorbing water, is including fixing installation base (16) at well limit of well (14) that absorbs water, install centrifugal water pump body (2) and motor (1) on installation base (16), centrifugal water pump body (2) are connected with motor (1), be connected with inlet tube (17) on the water inlet of centrifugal water pump body (2), inlet tube (17) are connected with through elbow of intaking (18) and absorb water tub (10), its characterized in that: the water suction pipe (10) stretches into in the suction well (14) and the bottom of water suction pipe (10) is connected with deep well immersible pump (11) through elbow (13) of absorbing water, the delivery port of the centrifugal water pump body (2) is connected with drain gate valve (4) and wet return (3) respectively, be connected with drain pipe (6) on drain gate valve (4), install on the upper end and drain pipe (6) of wet return (3) and wet return (3) return gate valve (19), still be connected with overflow pipe (8) on drain pipe (6), install overflow gate valve (7) on overflow pipe (8).

2. A centrifugal water pump apparatus capable of increasing a water suction height according to claim 1, wherein: and a check valve (5) is arranged between the drainage gate valve (4) and the drainage pipe (6).

3. A centrifugal water pump apparatus capable of increasing a water suction height according to claim 1, wherein: the water inlet pipe (17) and the water suction pipe (10) are respectively connected with a water inlet elbow (18) through a flange (15), the water inlet pipe (17) is horizontally arranged, and the water inlet pipe (17) and the water suction pipe (10) are mutually perpendicular.

4. A centrifugal water pump apparatus capable of increasing a water suction height according to claim 1, wherein: a pipeline support (9) is horizontally fixed on the inner side wall of the suction well (14), and the suction pipe (10) is fixed on the pipeline support (9).

5. A centrifugal water pump apparatus capable of increasing a water suction height according to claim 1, wherein: and a water inlet filter screen (12) is arranged on a water inlet of the deep well submersible pump (11).

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