Novel gear pump

Abstract

The invention relates to a novel gear pump, belongs to the technical field of pumps, and particularly relates to a novel gear pump which can be used for conveying various chemical mediums, oil, water, or poisonous and harmful or inflammable and explosive liquids, and is corrosion resistant, acid and alkali resistant, heat resistant, high pressure resistant and wearproof. The gear pump provided by the invention overcomes the defects in the prior art through an innovatively designed structure, improved processing technique and reasonable selection of metal and non-metal combined materials, thereby ensuring that the novel gear pump can meet working conditions of high temperature and high pressure as well as various viscosities, and can be used for efficiently conveying chemical mediums which are poisonous, harmful, volatile, corrosive, or easy-to-crystallize or relatively oppressive. The novel gear pump is connected with a motor for driving through a designed coupler with a double flange elastic body self-alignment structure; self alignment connection between the pump and the motor is really ensured; radial load caused by misalignment is eliminated; troubles in manual adjustment and non-compliance can be solved; and the novel gear pump can be extensively applied to various industries of tobaccos, petroleum, chemical engineering, papermaking, foods, beverages, pharmaceutical manufacturing, laboratories and the like.

Description

technical field [0001] The present invention relates to the technical field of pumps, in particular to a pump for transporting various chemical media or oil or water or toxic, harmful or inflammable and explosive liquids, which has the characteristics of corrosion resistance, acid and alkali resistance, high temperature resistance, high pressure resistance and wear resistance. A new type of gear pump. Background technique [0002] Most of the current gear pumps are gear oil pumps, which barely deliver low-pressure and low-temperature (such as about 70°C) oils with self-lubricating liquids. It is difficult to transport normally; in addition, due to the simplicity of the current design and processing and the inability to select the appropriate combination of materials, it is basically impossible to transport correctly and effectively for toxic, harmful, volatile, easy to corrode, easy to crystallize, and various harsh chemical media; On the one hand, due to the lack of many a...

AI Technical Summary

Problems solved by technology

[0002] Most of the current gear pumps are gear oil pumps, which barely deliver low-pressure and low-temperature (such as about 70°C) oils with self-lubricating liquids. It is difficult to transport normally; in addition, due to the simplicity of the current design and processing and the inability to select the appropriate combination of materials, it is basically impossible to transport correctly and effectively for toxic, harmful, volatile, easy to corrode, easy to crystallize, and various harsh chemical media; On the one hand, due to the lack of many aspects such as design, processing and materials, the scope of use is very limited. Its use accuracy, measurement level, cycle efficiency, transmission performance, installation and maintenance are difficult to meet the requirements of current production and life, and the wear and tear of pumps and gears Very powerful, difficult to maintain, high cost of use, low efficiency of the pump, so the service life of the pump is very short

[0003] Most of the current gear pumps use a simple mechanical coupling to connect the pump and the motor through the long shaft, and convert the mechanical energy output by the motor into hydraulic energy through the gears, but this simple connection will cause the gear pump and the motor The centering of the shaft cannot be guaranteed, resulting in unbalanced pressure on the pump shaft and mechanical seal, resulting in a large radial load, which limits the increase in pressure, resulting in low working pressure, easy leakage, and poor fluid flow. Stable, large pulsation, the interface or pipes will vibrate, the noise is particularly loud, the equipment is easily damaged, and directly affects the normal service life of the pump, especially the toxic, harmful, volatile, corrosive, and crystallized medium, which will cause damage to the pump. The destruction of the environment, the waste of resources, and more seriously, the injury of personnel, so it cannot be widely and effectively used

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