High-flow plateau oxygen generation system

Abstract

The invention relates to the field of gas separation, in particular to a high-flow plateau oxygen generation system which comprises an air compression part, a primary air filter part, a secondary air filter part and a high-flow oxygen generation part, and the air inlet end of the air compression part is detachably connected with the primary air filter part; the air inlet end of the air buffer tank is communicated with the air outlet end of the air compression part; the air inlet end of the filter I is communicated with the air outlet end of the air buffer tank; the sewage draining exit is communicated with the sewage draining end of the filter I; the air inlet end of the oxygen generation part is communicated with the air outlet end of the filter I; the gas inlet end of the oxygen buffer tank is communicated with the gas outlet end of the oxygen generation part; and the first stop valve is connected in series between the oxygen buffer tank and the oxygen generation part. According to the invention, the combination of the two air compression refrigeration and drying all-in-one machines and the molecular sieve tower is adopted, the pressure swing adsorption principle is utilized, the plateau test verifies that the oxygen production concentration can reach more than 90% at the altitude of more than 4500m, and the oxygen can be quickly produced in a short time to meet the use of multiple persons.

Description

Technical Field

[0001] The invention relates to the field of gas separation, and in particular to a large-flow plateau oxygen production system. Background Art

[0002] Hypoxia in plateau areas has a great impact on human health and combat operations. Soldiers living in the plateau for a long time will cause irreversible chronic altitude sickness such as high-altitude polycythemia and high-altitude heart disease, and respiratory, digestive, mental, and reproductive system diseases are prevalent, which seriously affects the quality of life of garrisoned soldiers and restricts the combat effectiveness and support capabilities of the troops. Oxygen inhalation is the most effective and direct method to prevent and treat altitude sickness. By increasing the oxygen concentration and raising the oxygen partial pressure in the body, the incidence of altitude sickness can be significantly reduced. By rapidly improving the oxygen production capacity, the oxygen support of the troops has been significantly improved, effectively ensuring the physical health of plateau officers and soldiers and improving military operational capabilities. In order to solve the problem that the plateau oxygen production volume is small and cannot meet the rapid and large-flow oxygen production in a short period of time, this program studies a large-flow plateau oxygen production system. Summary of the invention

[0003] The present application provides a high-flow plateau oxygen production system, which solves the problem in the prior art by using a combination of two air compressors and cold dryers and two molecular sieve towers, and utilizing the principle of pressure swing adsorption. The oxygen concentration can reach more than 90% at an altitude of more than 4,500 meters, and oxygen can be produced quickly in a short time to meet the needs of multiple people.

[0004] The technical problem solved by the present invention can be achieved by adopting the following technical solutions: A large-flow plateau oxygen production system, comprising: Air compression unit; An air buffer tank, wherein the air inlet end of the air buffer tank is connected to the air outlet end of the air compression unit; Filter 1, wherein the air inlet end of the filter 1 is connected to the air outlet end of the air buffer tank; A sewage outlet, the sewage outlet being connected to a sewage outlet end of the filter; An oxygen generator, wherein an air inlet end of the oxygen generator is connected to an air outlet end of the filter; An oxygen buffer tank, wherein an air inlet end of the oxygen buffer tank is connected to an air outlet end of the oxygen production unit; A stop valve 1, wherein the stop valve 1 is connected in series between the oxygen buffer tank and the oxygen production part; Filter 2, wherein the air inlet end of the filter 2 is connected to the air outlet end of the oxygen buffer tank; A second stop valve, wherein the second stop valve air inlet end is connected to the second filter air outlet end; A plurality of stop valves three, wherein the air inlet ends of the plurality of stop valves three are all connected to the air outlet end of the stop valve two; A safety valve 1 and a pressure relief valve are connected in sequence between the stop valve 2 and the plurality of stop valves 3, and a pressure sensor 3 and a pressure gauge 2 are connected between the plurality of stop valves 3 and the safety valve 1. Furthermore, the air compression unit is composed of at least two air-compressing and cold-drying integrated machines, the air inlet end of the air-compressing and cold-drying integrated machines is detachably connected to an air filter, and the air outlet ends of the two air-compressing and cold-drying integrated machines are both connected to an air buffer tank.

[0005] Furthermore, the air buffer tank is detachably connected with a safety valve 2, a pressure sensor 1 and a pressure gauge 1, and the bottom of the air buffer tank is detachably connected with a drain valve 1.

[0006] Furthermore, the oxygen production section is composed of two molecular sieve towers connected in parallel, and the air inlet end, exhaust end and air outlet end of the molecular sieve tower are respectively connected with an air inlet valve, an exhaust valve and an air outlet valve, the air inlet end of the air inlet valve of the two molecular sieve towers is connected with the air outlet end of filter one, a stop valve four is connected in series between the air inlet valve of the two molecular sieve towers and filter one, a muffler is connected to the air outlet end of the exhaust valve of the two molecular sieve towers, the air outlet end of the air outlet valve of the two molecular sieve towers is connected with the air inlet end of stop valve one, and a stop valve five is also connected in series between the air outlet valve of the two molecular sieve towers and stop valve one.

[0007] Furthermore, a pressure equalizing valve is connected in series between the gas outlet ends of the two molecular sieve towers, and the gas outlet end of the pressure equalizing valve is connected to the gas inlet end of the stop valve 5.

[0008] Furthermore, a vent valve and a one-way valve are connected in series between the stop valve one and the stop valve five.

[0009] Furthermore, the oxygen buffer tank is detachably connected with a safety valve three, a pressure sensor two and a pressure gauge three, and the bottom end of the air buffer tank is detachably connected with a drain valve two.

[0010] Furthermore, an oxygen booster is connected in series between the oxygen buffer tank and the second filter.

[0011] Furthermore, the filter one is a four-stage precision filter, and a one-way valve two is connected in series between the filter two and the stop valve two.

[0012] A cabin for a high-flow plateau oxygen production system, at least the high-flow plateau oxygen production system and cabin described above, wherein the high-flow plateau oxygen production system is detachably connected in the cabin, and a hot air blower and a temperature sensor are detachably connected in the cabin.

[0013] The beneficial effects of the present invention are: using two air compressor cold-drying integrated machines and a molecular sieve tower combination, using the pressure swing adsorption principle, and verified by plateau tests, the oxygen production concentration can reach more than 90% at an altitude of more than 4,500 meters, and oxygen can be produced quickly in a short time to meet the needs of multiple people.

[0014] The oxygen production unit of the present invention adopts a double molecular sieve tower design, which adopts a seven-valve two-tower process procedure, that is, the control system switches through seven solenoid valves to realize the double-tower pressure swing adsorption principle and achieve continuous oxygen supply. Select efficient molecular sieve adsorption materials to improve the oxygen production efficiency in the low-pressure environment of the plateau, and the oxygen production concentration and flow rate are output stably.

[0015] The present invention adopts a hot air blower to realize automatic heating of the hot air blower in a low-temperature environment until the ambient temperature is above 0°C, thereby ensuring that the oxygen production system can operate normally in a low-temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of a hot air blower and a temperature sensor of the present invention.

[0019] In the figure: 1-molecular sieve tower; 2-air buffer tank; 3-filter 1; 4-drain port; 5-oxygen production unit; 6-oxygen buffer tank; 7-stop valve 1; 8-filter 2; 9-stop valve 2; 10-stop valve 3; 11-safety valve 1; 12-pressure relief valve; 13-air compressor and dryer; 14-air filter; 15-safety valve 2; 16-pressure sensor 1; 17-pressure gauge 1; 18-drain valve 1; 19-intake valve ; 20-exhaust valve; 21-exhaust valve; 22-stop valve four; 23-muffler; 24-stop valve five; 25-equalizing valve; 26-vent valve; 27-check valve one; 28-safety valve three; 29-pressure sensor two; 30-pressure gauge three; 31-drain valve two; 32-oxygen booster; 33-check valve two; 34-cabin; 35-hot air blower; 36-temperature sensor; 37-pressure sensor three; 38-pressure gauge. DETAILED DESCRIPTION

[0020] Embodiment 1: Reference Figure 1 , is a schematic diagram of the structure of Example 1 of the present invention, a large flow plateau oxygen production system, comprising: Air compression unit; An air buffer tank 2, wherein the air inlet end of the air buffer tank 2 is connected to the air outlet end of the air compression part; A filter 3, wherein the air inlet end of the filter 3 is connected to the air outlet end of the air buffer tank 2; A sewage outlet 4, wherein the sewage outlet 4 is connected to a sewage outlet end of a filter 3; The oxygen generator 5, the air inlet end of the oxygen generator 5 is connected to the air outlet end of the filter 3; An oxygen buffer tank 6, wherein an air inlet end of the oxygen buffer tank 6 is connected to an air outlet end of the oxygen generator 5; A stop valve 7, wherein the stop valve 7 is connected in series between the oxygen buffer tank 6 and the oxygen production unit 5; A second filter 8, wherein the air inlet end of the second filter 8 is connected to the air outlet end of the oxygen buffer tank 6; A stop valve 2 9, wherein the air inlet end of the stop valve 2 9 is connected to the air outlet end of the filter 2 8; A plurality of stop valves 3 10, wherein the air inlet ends of the plurality of stop valves 3 10 are connected to the air outlet ends of the stop valve 2 9; A safety valve 11 and a pressure relief valve 12 are connected in sequence between the stop valve 2 9 and the plurality of stop valves 3 10 , and a pressure sensor 3 37 and a pressure gauge 2 38 are connected between the plurality of stop valves 3 10 and the safety valve 1 11 .

[0021] In actual use: the air compression unit sucks in the air and pressurizes it into the air buffer tank 2. The air buffer tank 2 is used for stabilization and storage. The air is then filtered through the filter 3 to remove impurities such as dust particles, water mist and oil mist. These impurities are discharged through the sewage outlet 4. The filtered air is separated from the oxygen by the oxygen production unit 5. At the same time, the stop valve 7 is opened to inject the oxygen into the oxygen buffer tank 6. The oxygen produced is temporarily stored and buffered by the oxygen buffer tank 6. When filling, the oxygen tank is connected to one of the stop valves 10 and opened at the same time. Open the stop valve 29 and the stop valve 3 10, and oxygen is injected into the tank from the oxygen buffer tank 6 through the filter 28, the stop valve 29 and the stop valve 3 10. At the same time, the safety valve 11 can prevent the air pressure in the tank from exceeding the limit and release the pressure in time. After filling, close the stop valve 3 10, connect it to the empty tank, and open it for filling again, or connect the pipeline that needs oxygen supply to one of the stop valves 3 10. Different oxygen supply needs can be met by several stop valves 3 10. The oxygen in the stop valve 3 10 to the oxygen buffer tank 6 can be emptied through the pressure relief valve 12 to prevent long-distance transportation from being in a sustained pressure state.

[0022] The air pressure in the pipeline between the stop valve three 10 and the stop valve two 9 can be monitored by the pressure sensor three 37 and the pressure gauge two 38, so that intuitive display and linkage control can be achieved.

[0023] Embodiment 2: Reference Figure 1 The difference of this embodiment is that the air compression part is composed of at least two air compression and cold-drying integrated machines 13, the air inlet end of the air compression and cold-drying integrated machines 13 is detachably connected to an air filter 14, and the air outlet ends of the two air compression and cold-drying integrated machines 13 are connected to the air buffer tank 2.

[0024] In actual use: the air compressor and cold-drying integrated machine 13 is mainly composed of a screw air compressor and an air-cooled refrigerated dryer. It can dry and purify the moisture in the gas through the internal freeze-drying module, and the dry compressed air is transmitted to the air buffer tank 2 through the gas pipeline. The use of the air compressor and cold-drying integrated machine 13 is beneficial to saving floor space. When starting up, the two air compressor and cold-drying integrated machines 13 are started at staggered peaks to reduce the starting current and protect the power supply. Under abnormal circumstances, if one machine fails, the other can be used as an emergency.

[0025] The air compressor in the air compressor and refrigeration dryer 13 provides the gas separation component with raw air with a certain pressure; the freeze dryer cools and lowers the temperature of the air with pressure and temperature discharged from the air compressor, and by cooling, reduces the water saturation in the compressed air, thereby reducing the pollution of the raw air to the molecular sieve. The outside air is first filtered through the filter 3, and then enters the compressor main head for supercharging. The supercharged air is then separated from the oil and compressed gas by the oil-gas separator, and the separated products are discharged. Then, the gas reaches the exhaust port of the air compressor through the exhaust valve inside the air compressor and refrigeration dryer 13; at this time, the compressed air with a certain pressure and temperature discharged enters the refrigeration dryer for pre-cooling and cooling, and at the same time, a large amount of water will be discharged from the compressed air after cooling. The exhaust capacity of the air compressor and refrigeration dryer 13 is slightly greater than the air consumption under the rated output of the gas separation component. Since its start and stop are controlled by the exhaust pressure, when the exhaust volume is greater than the gas consumption, the exhaust pressure rises, and the air compressor and refrigeration dryer 13 is unloaded; otherwise, the air compressor and refrigeration dryer 13 is loaded. Through such a cycle, the exhaust volume of the air-compressing cold-drying integrated machine 13 matches the gas consumption requirement of the oxygen production unit 5 and adapts to the operation needs under variable working conditions.

[0026] The air filter 14 can prevent large particles from entering the air compression part, preventing the internal seal from being loose and causing equipment damage. Embodiment 3: Reference Figure 1 The difference of this embodiment is that: the air buffer tank 2 is detachably connected with a safety valve 15, a pressure sensor 16 and a pressure gauge 17, and the bottom of the air buffer tank 2 is detachably connected with a drain valve 18.

[0027] In actual use: a safety valve 15 is designed on the top of the air buffer tank 2 to prevent the internal working pressure of the buffer tank from exceeding the design pressure and causing a safety accident; an air inlet and an air outlet are provided on the side wall, and the connection size is both internal thread DN25; a drain port is provided at the bottom and is connected to a drain valve 18, and the connection size is both external thread DN15 to discharge the oil-water condensate from the compressed air source; a pressure gauge is also provided to observe the pressure in the air buffer tank 2 and adjust the equipment operation status in time if any abnormality occurs.

[0028] The size of the air buffer tank 2 must be selected to ensure that a large amount of air is consumed instantly when the oxygen production section 5 is switched to adsorption, and to ensure that there is sufficient air flow and pressure during adsorption of the oxygen production section 5.

[0029] The selected air buffer tank 2 has a water volume of 0.3m³, a design pressure of 0.84MPa, and is made of Q235B material, which meets the design requirements.

[0030] Embodiment 4: Reference Figure 1 The difference of this embodiment is that: the oxygen production part 5 is composed of two molecular sieve towers 1 connected in parallel, the air inlet end, the exhaust end and the air outlet end of the molecular sieve tower 1 are respectively connected with an air inlet valve 19, an exhaust valve 20 and an air outlet valve 21, the air inlet end of the air inlet valve 19 of the two molecular sieve towers 1 is connected with the air outlet end of the filter 3, a stop valve 4 22 is connected in series between the air inlet valve 19 of the two molecular sieve towers 1 and the filter 3, the air outlet end of the exhaust valve 20 of the two molecular sieve towers 1 is connected with a muffler 23, the air outlet end of the air outlet valve 21 of the two molecular sieve towers 1 is connected with the air inlet end of the stop valve 7, and a stop valve 5 24 is also connected in series between the air outlet valve 21 of the two molecular sieve towers 1 and the stop valve 7.

[0031] A pressure equalizing valve 25 is connected in series between the gas outlet ends of the two molecular sieve towers 1 , and the gas outlet end of the pressure equalizing valve 25 is connected to the gas inlet end of the stop valve 5 24 .

[0032] In actual use: The molecular sieve tower 1 adopts pressure swing adsorption gas separation technology, and is mainly composed of two parts: molecular sieve adsorption material and tower body, and is used to adsorb and separate oxygen and nitrogen in the air.

[0033] The clean air filtered by the filter 2 8 is the raw material for oxygen production. The polarity of oxygen molecules and nitrogen molecules themselves and the difference in adsorption rate and adsorption capacity in the molecular sieve are utilized. The two atoms of the nitrogen molecule share 3 pairs of electrons and 3 covalent bonds, and have strong polarity and large van der Waals force, and are easily adsorbed by the molecular sieve material in large quantities; the two atoms of the oxygen molecule share 2 pairs of electrons and 2 covalent bonds, and have relatively weak polarity and relatively small van der Waals force, and are not easily adsorbed by the molecular sieve material; when the raw air enters the molecular sieve bed of the molecular sieve tower 1, oxygen is produced by the principle of pressurized adsorption and decompression analysis.

[0034] The two molecular sieve towers 1 are both provided with an inlet valve 19, an exhaust valve 20, an outlet valve 21, and a pressure equalizing valve 25 at the outlet ends of the two molecular sieve towers 1, forming seven logic valves, which are opened and closed by an external control system.

[0035] The oxygen production section 5 adopts a double molecular sieve tower 1 design, which is divided into group A and group B. Each group consists of 4 customized sieve towers. The tower structure is an aluminum alloy cylindrical cylinder with a height-to-diameter ratio of 8:1, and is equipped with upper and lower end covers. When the adsorption tower of group A is taking in air, adsorbing and separating, and discharging oxygen, group B is discharging nitrogen at the same time; then, the working conditions of the adsorption towers of groups A and B are swapped to complete an adsorption oxygen production cycle; within an oxygen production cycle, the adsorption towers of groups A and B alternately discharge oxygen. The specific process is as follows: Air intake: The air compressor and dryer 13 compresses air of a certain pressure into the conveying pipeline, and then uses the characteristics of the air compressor and dryer 13 to separate oil, water and impurities to remove water, oil, dust and other impurities, and reaches the air buffer tank 2. Then, it is transported to the filter 2 8 through the air buffer tank 2 for filtering again, and then sent to one of the molecular sieve towers 1.

[0036] The following distinguishes two molecular sieve towers 1 as a group A molecular sieve tower and a group B molecular sieve tower. When the two molecular sieve towers 1 are working: The air inlet valves 19 of the molecular sieve towers of group A and group B are opened at the same time, and the molecular sieve towers of group A and group B are inflated and pressurized. The compressed air flows through the adsorption towers from bottom to top. Under the action of pressure, nitrogen is rapidly adsorbed by the sieve material, and oxygen molecules form enriched oxygen near the gas outlet in the tower. When the pressure reaches the preset value, the air inlet valves 19 of the molecular sieve towers of group A and group B are closed at the same time; Then, the outlet valve 21 of the molecular sieve tower of group A is opened first, and the separated oxygen is injected into the oxygen buffer tank 6. When the pressure in the molecular sieve tower of group A drops to a preset value, the outlet valve 21 of the molecular sieve tower of group A is closed, and the outlet valve 21 of the molecular sieve tower of group B is opened at the same time, so as to realize continuous oxygen supply; At the same time, the exhaust valve 20 of the molecular sieve tower of group A is opened, the pressure in the molecular sieve tower of group A is reduced, the sieve material releases nitrogen, and is discharged through the exhaust valve 20 of the molecular sieve tower of group A, and then discharged and silenced through the muffler 23. At this time, the oxygen-nitrogen mixed gas still remains in the molecular sieve tower of group A. During the period when the molecular sieve tower of group B is depressurized and oxygen is discharged, the equalizing valve 25 is controlled to open and close, so that the oxygen in the molecular sieve tower of group B passes through the outlet valve 21 of the molecular sieve tower of group B, and then flows through the equalizing valve 25 into the outlet of the molecular sieve tower of group A. At the gas end, the molecular sieve tower of group A is back-blown, and the oxygen entering causes the mixed gas in the molecular sieve tower of group A to be discharged through the exhaust valve 20 of the molecular sieve tower of group A. After the purge is completed, the equalizing valve 25 and the exhaust valve 20 of the molecular sieve tower of group A are closed, and the air inlet valve 19 of the molecular sieve tower of group A is opened. The molecular sieve tower of group A is inflated and pressurized with compressed air, and the compressed air flows through the adsorption tower from bottom to top. Under the action of pressure, nitrogen is rapidly adsorbed by the sieve material, and oxygen molecules form enriched oxygen near the air outlet in the tower. At the same time, when the pressure in the molecular sieve tower of group B is reduced to a preset value, the outlet valve 21 of the molecular sieve tower of group B is closed, and the outlet valve 21 of the molecular sieve tower of group A is opened to replace the oxygen supply, and the exhaust valve 20 of the molecular sieve tower of group B is opened at the same time. The internal gas is discharged through the exhaust valve 20 of the molecular sieve tower of group B under the action of pressure, and flows through the muffler 23 to achieve silencing discharge. At the same time, the opening and closing of the equalizing pressure valve 25 is controlled, and the oxygen in the molecular sieve tower of group A passes through the outlet valve 21 of the molecular sieve tower of group A, and then flows through the equalizing pressure valve 25 into the outlet end of the molecular sieve tower of group B, and back-blowing is performed in the molecular sieve tower of group B; Through the above steps, the molecular sieve towers of group A and group B can alternately supply oxygen and discharge nitrogen and nitrogen-oxygen mixed gas, thereby achieving continuous oxygen supply.

[0037] The sieve material uses medical-grade small-particle sodium-lithium mixed molecular sieve. The sodium-based sieve material has good compressive resistance and is placed in the lower layer of the sieve tower. The lithium-based sieve material is placed in the upper layer. The mixing ratio of the two materials is 1:3. A clamping device and a buffer device are installed inside the sieve tower to realize self-compression technology.

[0038] When the pressure inside the molecular sieve tower 1 increases, the sieve material has the ability to adsorb nitrogen. When the pressure decreases, the adsorption capacity of the sieve material decreases, and the nitrogen is discharged during the continuous pressure reduction process.

[0039] Embodiment 5: Reference Figure 1 The difference of this embodiment is that a vent valve 26 and a one-way valve 27 are connected in series between the stop valve 1 7 and the stop valve 5 24 .

[0040] In actual use: the gas in the pipeline and the oxygen production part can be discharged through the vent valve 26 to relieve the pressure in the pipeline and empty it. At the same time, the oxygen produced by the oxygen production part in the initial stage does not meet the standard, and it is discharged through the vent valve 26. After meeting the standard, the vent valve 26 is closed, and the one-way valve 27 can prevent the oxygen from flowing back.

[0041] Embodiment 6: Reference Figure 1 The difference of this embodiment is that: the oxygen buffer tank 6 is detachably connected with a safety valve 3 28, a pressure sensor 29 and a pressure gauge 3 30, and the bottom of the air buffer tank 2 is detachably connected with a drain valve 2 31.

[0042] In actual use: a safety valve 28 is designed on the top of the oxygen buffer tank 6 to prevent the internal working pressure of the buffer tank from exceeding the design pressure and causing a safety accident; an air inlet and an air outlet are provided on the side wall, and the connection size is both internal thread DN25; a sewage outlet is provided at the bottom, and is connected to a sewage outlet valve 31, and the connection size is both external thread DN15, to discharge impurities such as oil that compresses the compressed oxygen; at the same time, a pressure gauge 30 is provided to observe the pressure in the oxygen buffer tank 6, and to adjust the equipment operation status in time if an abnormality occurs. The oxygen buffer tank 6 is used for temporary storage and buffering, and its specifications are a water volume of 0.3m³, a design pressure of 0.84MPa, and the material selected is Q235B, and the structure is the same as that of the air buffer tank 2.

[0043] Embodiment 7: Reference Figure 1 The difference of this embodiment is that an oxygen booster 32 is connected in series between the oxygen buffer tank 6 and the filter 2 8 .

[0044] In actual use: In order to prevent insufficient pressure when oxygen is tanked or continuously supplied, the pressure of oxygen output is increased by the oxygen booster 32 .

[0045] Embodiment 8: Reference Figure 1 The difference of this embodiment is that the filter 1 3 is a four-stage precision filter, and a one-way valve 2 33 is connected in series between the filter 2 8 and the stop valve 2 9 .

[0046] In actual use: In order to meet the quality requirements of the gas separation component for compressed air, a four-stage precision filter 3 is set after the air compression and cold-drying machine 5, and the air output from the air buffer tank 1 is transported to the four-stage precision filter 3 through a DN25 stainless steel pipe. The air handling capacity of the four-stage precision filter 3 meets the requirements of the plateau air supply; the selected filter element grades are AA, AO, AX, and ACS, and their functions are: AA-level high-efficiency general protection, removing dust particles larger than 1μm, water mist and oil mist, and the residual oil content of oil mist does not exceed 0.6mg / m3; A0-level high-efficiency oil removal filtration, removing dust particles larger than 0.01μm, water mist and oil mist, and the residual oil content of oil mist does not exceed 0.01mg / m3; AX-level ultra-high-efficiency removal of dust particles larger than 0.01μm, water mist and oil mist, and the residual oil content of oil mist does not exceed 0.001mg / m3; ACS-level removal of dust particles larger than 0.01μm, oil vapor and odor, and the residual oil vapor does not exceed 0.003mg / m3. The gas quality after precision filtration can reach air oil content ≤0.01PPm, particle content ≤3g / m3, and moisture content ≤5g / m3.

[0047] Embodiment 9: Reference Figure 1-2 , a cabin for a high-flow plateau oxygen production system, at least the high-flow plateau oxygen production system and cabin 34 described above, the high-flow plateau oxygen production system can be detachably connected in the cabin 34, and the cabin 34 is detachably connected with a hot air blower 35 and a temperature sensor 36.

[0048] In actual use: In areas with low temperatures, it is necessary to start the hot air blower 35 to heat the cabin 34. By increasing the temperature, the large-flow plateau oxygen production system can meet the starting conditions to prevent the problem of insufficient nitrogen and oxygen separation. By linking with the temperature sensor 36, it can automatically start when the internal temperature is below zero degrees.

[0049] The above is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Within the knowledge scope of ordinary technicians in the field, various changes can be made without departing from the purpose of the present invention, which are all within the protection scope of this technology.

Claims

1. A high-flow plateau oxygen production system, characterized in that: include: Air compression unit; An air buffer tank (2), wherein an air inlet end of the air buffer tank (2) is connected to an air outlet end of the air compression unit; Filter one (3), the air inlet end of the filter one (3) being in communication with the air outlet end of the air buffer tank (2); A sewage outlet (4), the sewage outlet (4) being connected to a sewage outlet end of the filter 1 (3); An oxygen production section (5), wherein an air inlet end of the oxygen production section (5) is connected to an air outlet end of the filter 1 (3); An oxygen buffer tank (6), wherein an air inlet end of the oxygen buffer tank (6) is connected to an air outlet end of the oxygen production unit (5); A stop valve (7), wherein the stop valve (7) is connected in series between the oxygen buffer tank (6) and the oxygen production unit (5); Filter 2 (8), the air inlet end of the filter 2 (8) is connected to the air outlet end of the oxygen buffer tank (6); A second stop valve (9), wherein the air inlet end of the second stop valve (9) is connected to the air outlet end of the second filter (8); A plurality of stop valves three (10), wherein the air inlet ends of the plurality of stop valves three (10) are all connected to the air outlet end of the stop valve two (9); A safety valve (11) and a pressure relief valve (12) are connected in sequence between the stop valve 2 (9) and the plurality of stop valves 3 (10), and a pressure sensor 3 (37) and a pressure gauge 2 (38) are connected between the plurality of stop valves 3 (10) and the safety valve 1 (11).

2. A high-flow plateau oxygen production system according to claim 1, characterized in that: The air compression unit is composed of at least two air compressor and cold-drying integrated machines (13), the air inlet end of the air compressor and cold-drying integrated machine (13) is detachably connected to an air filter (14), and the air outlet ends of the two air compressor and cold-drying integrated machines (13) are both connected to the air buffer tank (2).

3. A high-flow plateau oxygen production system according to claim 1, characterized in that: The air buffer tank (2) is detachably connected to a second safety valve (15), a first pressure sensor (16) and a first pressure gauge (17), and the bottom end of the air buffer tank (2) is detachably connected to a first drain valve (18).

4. A high-flow plateau oxygen production system according to claim 1, characterized in that: The oxygen production section (5) is formed by two molecular sieve towers (1) connected in parallel. The air inlet end, the air exhaust end and the air outlet end of the molecular sieve tower (1) are respectively connected to an air inlet valve (19), an air exhaust valve (20) and an air outlet valve (21). The air inlet end of the air inlet valve (19) of the two molecular sieve towers (1) is connected to the air outlet end of the filter one (3). A stop valve four (22) is connected in series between the air inlet valve (19) of the two molecular sieve towers (1) and the filter one (3). The air outlet end of the air exhaust valve (20) of the two molecular sieve towers (1) is connected to a muffler (23). The air outlet end of the air outlet valve (21) of the two molecular sieve towers (1) is connected to the air inlet end of the stop valve one (7). A stop valve five (24) is also connected in series between the air outlet valve (21) of the two molecular sieve towers (1) and the stop valve one (7).

5. A high-flow plateau oxygen production system according to claim 4, characterized in that: A pressure equalizing valve (25) is connected in series between the gas outlet ends of the two molecular sieve towers (1), and the gas outlet end of the pressure equalizing valve (25) is connected to the gas inlet end of the stop valve five (24).

6. A high-flow plateau oxygen production system according to claim 4, characterized in that: A vent valve (26) and a one-way valve (27) are connected in series between the stop valve 1 (7) and the stop valve 5 (24).

7. A high-flow plateau oxygen production system according to claim 1, characterized in that: The oxygen buffer tank (6) is detachably connected to a safety valve three (28), a pressure sensor two (29) and a pressure gauge three (30), and the bottom end of the air buffer tank (2) is detachably connected to a drain valve two (31).

8. A high-flow plateau oxygen production system according to claim 1, characterized in that: An oxygen booster (32) is connected in series between the oxygen buffer tank (6) and the second filter (8).

9. A high-flow plateau oxygen production system according to claim 1, characterized in that: The filter one (3) is a four-stage precision filter, and a check valve two (33) is connected in series between the filter two (8) and the stop valve two (9).

10. A shelter for a high-flow plateau oxygen production system, comprising at least a high-flow plateau oxygen production system and a shelter (34) as claimed in any one of claims 1 to 9, characterized in that: The high-flow plateau oxygen production system is detachably connected in the cabin (34), and a hot air blower (35) and a temperature sensor (36) are detachably connected in the cabin (34).

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