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a centrifugal pump

A centrifugal pump and pump cavity technology, applied in the field of centrifugal pumps, can solve the problems of affecting pump efficiency, high cost, energy waste, etc., and achieve the effect of simple structure and low cost

Active Publication Date: 2021-08-24
SHANGHAI LIANCHENG(GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing centrifugal pump can only change the displacement of the pump by adjusting the speed, which will not only affect the efficiency of the pump, the head of the pump, but also need a speed regulating mechanism to control
Due to the high cost of speed regulating mechanisms such as frequency converters, when different flow rates are required, it is now widely used to control them by changing the pipeline characteristics through throttle valves, resulting in a lot of energy waste

Method used

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  • a centrifugal pump
  • a centrifugal pump
  • a centrifugal pump

Examples

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Embodiment Construction

[0025] see Figure 1-15 As shown, a centrifugal pump includes a pump body 1, a pump chamber 1a is arranged inside the pump body 1, a pump cover 11 is fixedly installed on the opening of the pump chamber 1a, and a pump cover 11 is installed inside the pump cover 11. There is a power shaft 4 with one end extending into the pump chamber 1a, the impeller assembly is fixedly installed on the power shaft 4 in the pump chamber 1a, and the side of the pump body 1 is provided with a pump chamber 1a communicating with The inlet pipe 1b of the impeller assembly is provided with the outlet pipe 1c communicating with the pump chamber 1a along the radial direction of the impeller assembly; the impeller assembly includes a first cover plate 21 and a second cover plate 22, and the first cover plate 21 is fixedly installed On the power shaft 4, the first cover plate 21 is fixedly installed with a deflector cap 23 at one end of the power shaft 4 extending into the pump cavity 1a; There are six...

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Abstract

The invention discloses a centrifugal pump, which comprises a pump body, a pump cavity is arranged in the pump body, a pump cover is installed on the pump body, a power shaft is arranged in the pump cover, and a power shaft is fixed in the pump cavity. An impeller assembly is installed, and the side of the pump body is provided with a water inlet pipe and an outlet pipe; the impeller assembly includes a first cover plate and a second cover plate, the first cover plate is fixedly installed on the power shaft, and the The first cover plate is provided with a plurality of first blades, and the second cover plate is fixedly installed on the first blades; each first blade is provided with an arc-shaped blade groove, and each blade groove is slidably connected There is a second blade; the first cover plate is provided with a limit groove communicating with the blade groove; the first cover plate is provided with a first bushing, and an adjusting disc is rotatably connected to the first bushing, The radial chute on the adjustment plate is provided with a protruding post on one side of each second vane; the centrifugal pump not only has a simple structure, but also can adjust and change the displacement as required.

Description

technical field [0001] The invention belongs to the technical field of centrifugal pumps, in particular to a variable displacement centrifugal water pump. Background technique [0002] A centrifugal pump is a machine that transports or pressurizes a liquid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali, emulsion, suspension, etc. Emulsions and liquid metals, etc., can also transport liquids, gas mixtures, and liquids containing suspended solids; the technical parameters to measure the performance of centrifugal pumps include flow rate, suction lift, head, shaft power, water power, efficiency, etc. Existing centrifugal pumps can only change the displacement of the pump by adjusting the rotational speed, which not only affects the efficiency and head of the pump, but also requires a speed regulating mechanism to contr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D1/00F04D15/00F04D29/22F04D29/24
CPCF04D1/00F04D15/0055F04D29/2261F04D29/242
Inventor 宋来瑞盛庆梅其他发明人请求不公开姓名
Owner SHANGHAI LIANCHENG(GRP) CO LTD