Novel horizontal cantilever energy-saving two-stage pump

Abstract

The invention discloses a novel horizontal cantilever energy-saving two-stage pump. The novel horizontal cantilever energy-saving two-stage pump comprises a water inlet, a heat preservation jacket, awater inlet flange, a pump body, a rotor, a support leg and a first impeller. The two-stage pump adopts a horizontal cantilever structure; the water inlet flange is arranged at one end of the two-stage pump; the heat preservation jacket is arranged on the flange face of the water inlet flange; the water inlet is formed in the water inlet flange; the water inlet flange is connected with the pump body; the water inlet flange and the pump body are connected through a bolt; a sealing ring is arranged at the joint of the water inlet flange and the pump body; a water outlet is arranged at the upperend of the pump body; a water flow channel and an annular water pressing chamber are arranged in the pump body; a bearing support is arranged on the right side of the pump body; the pump body is connected with the bearing support through a bolt; a bearing gland is connected to the right side of the bearing support; a double-row centripetal ball bearing is arranged in the bearing gland; the rotor is arranged in the pump body; and the support leg is connected below the bearing gland. The two-stage pump runs stably and has good structural stability.

Description

technical field [0001] The invention relates to a novel energy-saving water pump, in particular to a novel horizontal cantilever energy-saving two-stage pump, which belongs to the technical field of water pumps. Background technique [0002] A 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, suspoemulsion and liquid metal. Liquids, gas mixtures and liquids containing suspended solids can also be transported. The technical parameters of pump performance include flow rate, suction lift, lift, shaft power, water power, efficiency, etc.; according to different working principles, it can be divided into volumetric pumps, vane pumps and other types. Positive displacement pumps use the change in the volume of their working chambers to transfer energy; van...

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Problems solved by technology

[0003] The pump is a large power consumer. According to the calculation of the General Machinery Industry Association, the power consumption of the pump accounts for about 20% of the country's power generation. The improvement of the pump power is of great significance for energy saving and emission reduction. The traditional vertical pipeline pump has only one impeller, the head is low, and the efficiency is low. Low energy consumption; the axial force of traditional multistage pumps is unbalanced, and auxiliary balancing devices are needed, otherwise the operation will be unstable, affecting efficiency, increasing production design costs, and occupying a large area, inconvenient installation, and low efficiency. High energy consumption, for this reason, we propose a new horizontal cantilever energy-saving two-stage pump

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