O2 purifying system, and gas treatment system

Abstract

The invention discloses an O2 purifying system, and a gas treatment system, and belongs to the technical field of O2 purifying. The O2 purifying system comprises a raw material gas pipeline, a product gas pipeline, a vacuumizing pipeline, a rotary valve, and an adsorption tower; the rotary valve comprises a non-rotational part and a rotational part; the non-rotational part is provided with a first runner; the rotational part is provided with a second runner; the rotational part is driven to rotate so as to realize communication of the raw material gas pipeline, the product gas pipeline, the vacuumizing pipeline, and the adsorption tower via the second runner; and the gas treatment system comprises the O2 purifying system. Both the O2 purifying system and the gas treatment system are used for realizing control of multiple pipelines via the same rotary valve; cost is reduced; and control is convenient.

Description

technical field [0001] The present invention relates to O 2 Purification technical field, specifically, relate to a kind of O 2 Purification system and gas treatment system. Background technique [0002] Purification of O by pressure swing adsorption 2 Because the system includes many operating steps, the number of program-controlled valves is very large, which increases the investment cost and equipment installation cost of the entire device, and the valve rack area occupies a large area, which is not conducive to the prying of the device. [0003] Purification of O by pressure swing adsorption 2 Due to the short cycle time of the system, the switching frequency of the program-controlled valve is high, and the failure probability of each component of the valve is greatly increased. At the same time, during the pressure balance process of pressure swing adsorption, the valve core is washed by high-speed air flow, and the valve sealing surface is easily damaged, causing i...

AI Technical Summary

Problems solved by technology

[0002] Purification of O by pressure swing adsorption 2 Because the system contains many operating steps, the number of program-controlled valves is very large, which increases the investment cost and equipment installation cost of the entire device, and the valve rack area occupies a large area, which is not conducive to the prying of the device.

[0003] Purification of O by pressure swing adsorption 2 Due to the short cycle time of the system, the switching frequency of the program-controlled valve is high, and the failure probability of each component of the valve is greatly increased.

At the same time, during the pressure balance process of pressure swing adsorption, the valve core is washed by high-speed air flow, and the valve sealing surface is easily damaged, causing internal leakage of the valve, affecting the operation of the device, increasing the daily maintenance cost and difficulty of repairing the device, and prolonging the production time. increased production costs

[0004] Purification of O from present pressure swing adsorption 2 From the perspective of the operation of the device, the failure of the program-controlled valve or internal leakage of the sealing surface is the biggest bottleneck affecting the stable operation of the entire device

Although the service life of the programmable valve can be extended by improving the valve design and optimizing the structure of the sealing surface, the problems of the fault of the programmable valve and internal leakage of the sealing surface cannot be avoided fundamentally

[0005] Generally, O 2 In the adsorption process, the adsorption operation time is short (less than one second). Such a short time requires that the program-controlled valve must be able to respond quickly, which has very high requirements for the program-controlled valve, which greatly increases the cost of the program-controlled valve.

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