Medium heat preservation device and magnetic drive pump applied to medium heat preservation device

Abstract

The invention belongs to the technical field of magnetic drive pumps, and particularly relates to a medium heat preservation device. The medium heat preservation device comprises a heat preservation cavity for avoiding crystallization of a medium conveyed by a magnetic drive pump; the heat preservation cavity comprises a front heat preservation cavity body, a middle heat preservation cavity body and a rear heat preservation cavity body; the front heat preservation cavity body communicates with the middle heat preservation cavity body through a steam conveying pipe; the middle heat preservation cavity body is provided with a first steam hole; the rear heat preservation cavity body is provided with a second steam hole; and the first steam hole and the second steam hole jointly form a steam conveying hole for communicating with the middle heat preservation cavity body and the rear heat preservation cavity body. The medium heat preservation device has the beneficial effect that the problem that by means of a traditional magnetic drive pump, only an impeller of a working cavity, a feeding inlet and a discharging outlet are subjected to heat preservation, and heat preservation of a power cavity is ignored is solved. According to the medium heat preservation device, the heat preservation cavity is creatively divided into the three sections, namely, the front heat preservation cavity body, the middle heat preservation cavity body and the rear heat preservation cavity body, thus, a whole power cavity and a rotary shaft of the magnetic drive pump can be covered, and the situation that the magnetic drive pump is influenced after the medium entering the power cavity is condensed is avoided.

Description

technical field [0001] The invention belongs to the technical field of magnetic pumps, and in particular relates to a medium heat preservation device and a magnetic pump applied thereto. Background technique [0002] Magnetic pump is a commonly used fluid conveying machine. It is widely used in medicine, chemical industry, sanitary ware and other industries due to its advantages of no leakage, low noise and stable operation. The magnetic pump consists of three parts: pump, magnetic sensor and motor. The pump includes casing, impeller, pump cover and pump shaft. The magnetic sensor includes outer magnetic rotor, inner magnetic rotor and isolation sleeve. The outer magnetic rotor is fixedly connected to the motor shaft, and the inner magnetic rotor is fixedly connected to the pump shaft. The motor drives the outer magnetic rotor to rotate, and then drives the inner magnetic rotor to rotate. The inner magnetic rotor is a follower. The isolation sleeve is composed of a flange, ...

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