[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0019] The purpose of the present invention is to solve the above-mentioned problems in the prior art, and provide a new type of oxygen supply shelter suitable for high altitude areas, convenient installation and stable operation.
[0020] The present invention provides a new type of oxygen production and supply shelter, which includes a shelter and an oxygen production and supply system arranged in the shelter. The oxygen production and supply system includes a power distribution cabinet and an air compressor and air The pretreatment system, the nitrogen-oxygen separation module, the circulating process compressor, and the oxygen-argon separation module. The circulating process compressor is also connected with an oil-free oxygen compressor through a pipeline, and the oil-free oxygen compressor is connected with oxygen through a pipeline Bottle; the square cabin is provided with a number of pairs of opposite axial fans on the side wall, the square cabin is provided with an air inlet grille on the side wall facing the inlet of the air compressor, the power distribution cabinet A power source is connected and the power distribution cabinet provides power for the oxygen production and supply system.
[0021] The oxygen production and supply system in the new oxygen production and supply shelter of the present invention adopts a modular design. On the one hand, it is simple to disassemble and assemble, easy to install, and convenient to maintain. On the other hand, it is convenient for users to expand easily. On the other hand, the modular design reduces The buffer volume of the gas reduces the volume of the oxygen supply system and is convenient for transportation and transfer.
[0022] In order to make the above objectives, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0023] The novel oxygen production and supply shelter of this embodiment includes a shelter 10 and an oxygen production and supply system set in the shelter 10.
[0024] Such as figure 1 As shown, the oxygen production and supply system includes a power distribution cabinet 2 and an air compressor 3 connected by pipelines in sequence, an air pretreatment system, a nitrogen and oxygen separation module 4, a circulating process compressor 5, an oxygen argon separation module 6, and air pretreatment The system includes a freeze dryer set inside the air compressor 3, a filter and a gas-water separator for the freeze dryer. The circulating process compressor 5 is also connected with oil-free oxygen compression 7 and oil-free oxygen compression 7 through pipelines. An oxygen cylinder 8 is connected through the pipeline. In this embodiment, the oil-free oxygen compression 7 uses a diaphragm compressor. The diaphragm compressor can ensure that the pressurized oxygen is not polluted, and meets the requirements of the national medical oxygen standard. The machine itself is equipped with multiple automatic protection and alarm devices such as diaphragm rupture, low oil pressure, high oil temperature, etc.; there is a back pressure valve on the connecting pipeline of the oil-free oxygen compression 7 and the oxygen cylinder 8 to prevent overcurrent, overpressure and accidental temperature. L may cause the danger. Both the oxygen-nitrogen separation module 4 and the oxygen-argon separation module 6 are modularly designed aluminum alloy separators, which produce high-purity oxygen through a coupling process. The nitrogen-oxygen separation module 4 is a pressure swing adsorption device, and the oxygen-argon separation module 6 is Membrane separation and purification device; nitrogen adsorbent (zeolite molecular sieve) is installed in the nitrogen and oxygen separation module 4, which can separate nitrogen and oxygen in the air to obtain oxygen-enriched air with 93% oxygen purity; oxygen and argon separation module 6 is equipped with inorganic membrane materials , The separation technology with inorganic membrane material as the core can remove argon in oxygen-enriched air to obtain high-purity oxygen (medical oxygen) with an oxygen purity of 99.5% or more.
[0025] The power distribution cabinet 2 is electrically connected to the power supply at the power interface 1 and the power distribution cabinet 2 is the power distribution of the oxygen production and supply system; the power distribution cabinet 2 is equipped with a controller, and the pipeline of the oxygen production and supply system is equipped with a controller respectively Electrically connected pressure sensor and temperature sensor, the controller can monitor the temperature and pressure of the system, set the necessary alarm, interlock, protection, shutdown and other functions, and can also turn on the cooling device in the distribution cabinet after detecting the over-temperature. The electric cabinet quickly cools the temperature, which can avoid the possibility of overpressure and overtemperature of oil-free oxygen compression, and is equipped with a filling hose, which can easily complete the exchange and mutual preparation process of oxygen cylinders 8 or busbars.
[0026] The side wall of the shelter 10 is provided with a fireproof material interlayer, and the shelter 10 provided with a fireproof material interlayer has superior thermal insulation, ensuring a stable operating environment in the shelter 10, and minimizing the high and low temperature in high altitude areas Impact on the normal operation of the oxygen production and supply system; reference figure 1 The side walls of the shelter 10 are provided with two pairs of opposite axial fans 11, and the surrounding side walls of the shelter 10 are provided with shutters. When the two sets of axial fans 11 are turned on, the gas flow in the shelter 10 can be accelerated. Speed up the discharge of exhaust gas generated by the oxygen supply system, and help reduce the temperature in the shelter 10, and prevent the temperature in the shelter 10 from being too high; the shelter 10 is provided on the side wall facing the inlet of the air compressor 3 The air intake grille 9 ensures that the air compressor 3 can quickly inhale air; the side walls of the shelter 10 are provided with side-by-side doors 12 to facilitate the entry and exit of the shelter 10 by workers.
[0027] When the new oxygen supply shelter of this embodiment is working, the screw-type air compressor 3 sucks in air through the intake grid, and the compressed air reaches 0.5-0.9 MPa and then enters the air pretreatment system. After that, the solid particles, oil and water entrained in the air will be removed to provide a separated gas source for oxygen extraction. At the same time, the compressed air deeply purified by the air pretreatment system also provides instrument air for subsequent equipment. The air enters the nitrogen and oxygen separation module 4 after being processed by the air pretreatment system. Nitrogen is preferentially adsorbed on the surface of the zeolite within a certain period of time in the porous structure of the zeolite molecular sieve and has a smaller adsorption capacity than oxygen. Therefore, the oxygen will be The nitrogen and oxygen separation module 4 is enriched at the outlet end, while nitrogen is left in the zeolite molecular sieve and evacuated as the pressure decreases, and is discharged to the outside of the cabin through the axial fan 11 of the cabin; the oxygen enrichment produced by the nitrogen and oxygen separation module 4 The air is pressurized by the circulating process compressor 5 and then flows to the oxygen-argon separation module 6. The inorganic membrane material in the oxygen-argon separation module 6 can remove argon and a small amount of nitrogen from the oxygen-enriched air. The membrane separation purification is mainly performed by the membrane separator, The gas buffer tank, modular standard gas circuit switching combination valve and control system are composed; the circulating process compressor 5 provides compressed kinetic energy for the continuous circulating membrane separation process in the oxygen-argon separation module 6 to purify the concentration of high-purity oxygen in a circulating manner. At the same time, the oxygen-enriched air containing argon is continuously guided back into the purification system as a purge carrier gas for secondary separation and recovery; finally, oil-free oxygen compression 7 separates the circulating process compressor 5 from the oxygen-argon separation module 6 The high-purity oxygen is pressurized to a high pressure of 15MPa and stored in the oxygen cylinder 8.
