A SYSTEM FOR OBTAINING HIGH PURITY NITROGEN IN NITROGEN GAS PURIFICATION APPLICATIONS AND A METHOD THEREOF
20230227310 ยท 2023-07-20
Inventors
Cpc classification
International classification
Abstract
Disclosed is a system developed for obtaining high purity (minimum 99.999%) nitrogen gas in nitrogen gas purification applications and drying obtained nitrogen gas before applying it on areas of use, and to an operating method of said system.
Claims
1. A system for nitrogen gas purification applications, characterized by comprising; a nitrogen inlet port, for the inlet of nitrogen gas from a nitrogen generator connected, which allows connection to the nitrogen generator, a catalyst tank containing at least one catalyst, which allows eliminating of the oxygen molecules in the nitrogen gas, a hydrogen inlet port for the inlet of hydrogen gas into the catalyst tank, at least one solenoid valve for controlling the flow of hydrogen gas entered the catalyst tank, and closing the inlet of hydrogen gas to the system, a hydrogen flowmeter for monitoring the flow of hydrogen gas, at least one proportional valve that allows passing of the hydrogen gas at the correct flow rate, a control unit for setting the flow rate of hydrogen and controlling the temperature, a first cooler (aftercooler) that condense the water therein by cooling nitrogen gas, a water separator for separating the liquid water formed in the nitrogen gas, at least one discharge member and at least one discharge port for discharging the water separated by the water separator, a refrigerant type dryer unit comprising an exchanger for heating and cooling the gas, a compressor for compressing refrigerant gas and a thermostatic expansion valve for cooling the fluid by reducing its pressure, at least one temperature sensor for controlling the temperature, a control system panel for controlling the system and a nitrogen outlet port for the exhaust of obtained nitrogen gas from the system.
2. The system according to claim 1, wherein the refrigerant type dryer unit comprises a regulator for setting gas pressure.
3. The system according to claim 1, wherein the refrigerant type dryer unit comprises a condenser that allows cooling of compressed hot refrigerant gas.
4. The system according to claim 1, wherein the refrigerant type dryer unit comprises an eliminator filter dryer for eliminating harmful particles in the refrigerant fluid.
5. The system according to claim 1, wherein the exchanger has a plate.
6. The system according to claim 5, wherein the exchanger comprises an aluminum plate.
7. The system according claim 1, wherein the control unit is PID control unit.
8. The system according to claim 1, wherein it comprises at least two egg-shaped discharge -members.
9. The system according to claim 8, wherein it comprises two egg-shaped discharge members.
10. The system according to claim 1, wherein it comprises an oxygen analyzer for measuring purity of nitrogen gas.
11. The system according to claim 1, wherein it comprises a dew point analyzer for measuring dryness of nitrogen gas.
12. The system according to claim 1, wherein it comprises a housing surrounding the system.
13. The system according to claim 12, wherein the housing comprises a plurality of openings for the inlet and outlet of nitrogen and hydrogen gas.
14. The system according to claim 12, wherein at least two surfaces of the housing have a perforated structure for allowing air inlet and outlet.
15. The system according to claim 12, wherein the control system panel is located on the housing.
16. The system according to claim 12, wherein it comprises a connection cable on the housing that allows driving of energy required for the operation of the system.
17. The system according to claim 1, wherein the catalyst in the catalyst tank comprises a metal coating.
18. The system according to claim 17, wherein the metal is palladium.
19. A working method of a system of according to claim 1, the method comprising: sending nitrogen gas from a nitrogen generator into the catalyst tank, sending hydrogen gas set at a desired flow rate into the catalyst tank to react it with oxygen in nitrogen gas, cooling nitrogen gas obtained at the outlet of the catalyst tank by sending it to the first cooler (aftercooler), and condensing water contained in it, separating the resulting liquid water by means of the water separator, discharging the water separated by the water separator, transmitting nitrogen gas from the water separator to the exchanger, compressing the refrigerant gas by the refrigerant compressor, cooling compressed gas by sending it to the condenser, eliminating harmful particles by passing refrigerant fluid through an eliminator filter dryer, transmitting refrigerant fluid passing through the eliminator filter dryer to the thermostatic expansion valve, and cooling it by reducing its pressure, transmitting refrigerant fluid to the exchanger, condensing water contained in the pure nitrogen and turning the refrigerant fluid from liquid to gas form and sending refrigerant gas to the refrigerant compressor.
20. The method according to claim 19, wherein nitrogen gas that has 99.5% purity and contains 0.5% oxygen is mixed with 1% hydrogen gas.
21. The system according to claim 19, wherein the nitrogen generator is PID nitrogen generator.
22.-24. (canceled)
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0083]
[0084]
[0085]
[0086]
[0087]
[0088]
[0089]
[0090]
[0091]
[0092]
[0093]
[0094]
Descriptions of Reference Numbers in Figures
[0095]
[0096]
[0097]
[0098]
[0099]
[0100]
[0101]
[0102]
[0103]
[0104]
[0105]
[0106]
[0107]
[0108]
[0109]
[0110]
[0111]
[0112]
[0113]
[0114]
[0115]