Improved soaking type vertical pump structure

Abstract

The invention relates to an improved soaking type vertical pump structure which comprises a positive pressure exhaust shaft seal device, a pumping connection group, an outlet pipe fixing group and the like, wherein the positive pressure exhaust shaft seal device is installed in a support tube accommodating chamber and on the upper end of an axle center and can be used for isolating and reducing the crystallization generated through the liquid vapour molecule depositing and the surface cover ratio, prolonging the time history of the periodic corrective maintenance is prolonged and reducing the times of replacing shaft seal parts; and the pump connection group is installed above the support tube and used for connecting with a support plate, and can be rapidly dismounted so as to increase the convenience of the maintenance service, and the outlet pipe fixing group is also used for improving the removable convenience of a pump during maintenance. The improved soaking type vertical pump structure provided by the invention has the advantages of reducing the crystallization generation ratio and the damage to a motor axis shaft seal, preventing the corrosive vapor from entering into the motor to further lead breakdown, providing a convenient dismounting structure and improving the manpower burden of cleaning crystals at regular intervals.

Description

technical field [0001] The present invention relates to the improvement of the submerged vertical pump structure. Background technique [0002] In terms of splash prevention and liquid level control, Taiwan Patent No. M360944 has achieved good results and effectively prolongs the service life of the pump. However, under long-term use, there will still be crystals on the surface of parts near the shaft seal due to the deposition of high-temperature liquid vapor molecules. Such crystals have high hardness and surface adhesion and are not easy to remove. Therefore, regular maintenance and cleaning are required. Ensure the service life of the shaft seal. In the regular cleaning procedure, the entire pump must be fully disassembled, thus increasing the working time and manpower load for regular maintenance. [0003] Such as figure 1 Citation case 1 shown in common use: In terms of improving the convenience of product maintenance, it is a known technology that some manufacturer...

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Problems solved by technology

[0009] (2) Under the condition of high temperature and high pressure, the structural strength of the Yuren made of plastic is reduced, which leads to the leakage of the Yuren joint.

[0011] (1) The problem of gas molecule deposition: the positive pressure exhaust shaft seal device made of low adhesion material is used to introduce external air to reduce the concentration of chemical liquid vapor to reduce the deposition of vapor molecules. Escaping vapor molecules are completely exhausted out of the pump

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