Medical oxygen generation equipment

Abstract

The utility model provides medical oxygen generation equipment which comprises a molecular sieve tank, a first separation chamber and a second separation chamber are arranged in the molecular sieve tank, a first molecular sieve membrane is arranged in the first separation chamber, and a second molecular sieve membrane is arranged in the second separation chamber. According to the utility model, gas is introduced along the gas inlet interface, after the gas enters the first molecular sieve membrane, oxygen is adsorbed and separated, and the separated gas enters the inner cavity of the first separation chamber, is introduced into the gas storage chamber through the first exhaust hole, and is finally exhausted through the exhaust interface; by sliding the hollow sliding sleeve, the vent hole in the hollow sliding sleeve is communicated with the second air guide channel, so that air in the inner cavity of the first molecular sieve membrane can be guided into the inner cavity of the second molecular sieve membrane, adsorption separation is performed by the second molecular sieve membrane, frequent disassembly and replacement are avoided, and the service life is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of oxygen generator technology, and in particular to a medical oxygen generator. Background Technology

[0002] Molecular sieve oxygen concentrators typically employ a pressurized adsorption / atmospheric desorption method, with two adsorption towers performing the same cyclic process to achieve continuous gas supply. When the oxygen concentrator operates for extended periods, fine dust, dirt, and other impurities from the air gradually accumulate on the molecular sieve membrane. As the blockage worsens, it affects oxygen production, leading to reduced oxygen output and concentration, thus degrading the overall performance of the oxygen concentrator. When the molecular sieve membrane becomes severely clogged, the oxygen concentrator needs to be disassembled and the molecular sieve tank replaced. Traditional molecular sieve tanks have short lifespans and require frequent maintenance. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes a medical oxygen generator to more accurately resolve the problems described above.

[0004] This utility model is achieved through the following technical solution:

[0005] This utility model proposes a medical oxygen generator, including a molecular sieve tank. The molecular sieve tank has a first separation chamber and a second separation chamber inside. A first molecular sieve membrane is located inside the first separation chamber, and a second molecular sieve membrane is located inside the second separation chamber. A gas storage chamber is located above the first and second separation chambers. An air inlet is located at the top of the gas storage chamber, communicating with the inner cavity of the first molecular sieve membrane inside the first separation chamber. An exhaust port is located at the top of the gas storage chamber, communicating with the gas storage chamber. Several first exhaust holes are located at the top of the first separation chamber, on the outer edge of the first molecular sieve membrane, connecting the gas storage chamber and the first separation chamber. A switch chamber is located at the bottom of the molecular sieve tank, communicating with the inner cavity of the first molecular sieve membrane inside the molecular sieve tank via a first air guide channel. The switch chamber is also connected to the inner cavity of the second molecular sieve membrane inside the molecular sieve tank via a second air guide channel. Several second exhaust holes are located at the top of the second separation chamber, on the outer edge of the second molecular sieve membrane, connecting the gas storage chamber and the second separation chamber.

[0006] Furthermore, the switch chamber is a cylindrical channel, and a hollow sliding sleeve is slidably connected inside the switch chamber. A vent hole is provided on the hollow sliding sleeve at the position corresponding to the second air guide channel.

[0007] Furthermore, an armature is provided at one end of the hollow sliding sleeve near the second separation chamber, and an electromagnet is provided on the bottom outer wall of the molecular sieve tank at the position corresponding to the hollow sliding sleeve, with the magnetized end of the electromagnet corresponding to the armature.

[0008] Furthermore, a tension spring is connected between the end of the hollow sliding sleeve away from the armature and the inner wall of the switch chamber.

[0009] Furthermore, the bottom side of the molecular sieve tank is provided with a first pressure measuring channel that communicates with the inner cavity of the first molecular sieve membrane inside the first separation chamber, and a first pressure gauge is connected to the outer end of the first pressure measuring channel.

[0010] Furthermore, the top side of the molecular sieve tank is provided with a second pressure measuring channel that communicates with the gas storage chamber, and the outer end of the second pressure measuring channel is connected to a second pressure gauge.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model introduces gas through the air inlet. After the gas enters the first molecular sieve membrane, oxygen is adsorbed and separated. The separated gas enters the first separation chamber and is introduced into the gas storage chamber through the first exhaust port. Finally, it is discharged through the exhaust port. When the first molecular sieve membrane becomes blocked after long-term operation, the air vent on the hollow sleeve is connected to the second air guide channel by sliding the hollow sleeve. This allows the gas in the inner cavity of the first molecular sieve membrane to be introduced into the inner cavity of the second molecular sieve membrane, where it is adsorbed and separated by the second molecular sieve membrane. This avoids the need for frequent disassembly and replacement and greatly extends the service life.

[0013] 2. This utility model detects the air pressure in the inner cavity of the first molecular sieve membrane by using a first pressure gauge and the air pressure inside the storage chamber by using a second pressure gauge. When the difference between the measured air pressure values ​​of the first and second pressure gauges exceeds a certain range, the existing PLC control chip is used to control the electromagnet to work, so that the magnetized end of the electromagnet attracts the armature until the vent hole on the hollow sliding sleeve is connected to the second air guide channel, thereby automatically realizing the second molecular sieve membrane being incorporated into the air channel. Attached Figure Description

[0014] Figure 1 This is a three-dimensional half-sectional view of the present invention;

[0015] Figure 2 This is a front sectional view of the structure of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the present invention.

[0017] In the diagram: 1. Molecular sieve tank; 101. First separation chamber; 1011. First exhaust port; 1012. First air guide channel; 1013. First pressure measuring air channel; 102. Second separation chamber; 1021. Second exhaust port; 1022. Second air guide channel; 103. Air inlet; 104. Gas storage chamber; 1041. Exhaust port; 1042. Second pressure measuring air channel; 105. First molecular sieve membrane; 1051. Second molecular sieve membrane; 106. Switch chamber; 1061. Hollow sliding sleeve; 1062. Tension spring; 1063. Armature; 107. Electromagnet. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0019] A medical oxygen generator includes a molecular sieve tank 1. The molecular sieve tank 1 has a first separation chamber 101 and a second separation chamber 102 inside. The first separation chamber 101 contains a first molecular sieve membrane 105, and the second separation chamber 102 contains a second molecular sieve membrane 1051. A gas storage chamber 104 is located above the first and second separation chambers 101 and 102. An air inlet 103 is located at the top of the gas storage chamber 104 and communicates with the inner cavity of the first molecular sieve membrane 105 inside the first separation chamber 101. An exhaust port 1041 is located at the top of the gas storage chamber 104 and communicates with the gas storage chamber 104. Several first exhaust holes 1011 are located at the top of the first separation chamber 101 and around the outer edge of the first molecular sieve membrane 105, and these first exhaust holes 1011 connect the gas storage chamber 104 and the first separation chamber 101. During operation, gas is introduced through the air inlet 103. After entering the first molecular sieve membrane 105, oxygen is adsorbed and separated. The separated gas enters the inner cavity of the first separation chamber 101 and is introduced into the gas storage chamber 104 through the first exhaust port 1011. Finally, it is discharged through the exhaust port 1041.

[0020] A switch chamber 106 is provided at the bottom of the molecular sieve tank 1, and the switch chamber 106 is connected to the inner cavity of the first molecular sieve membrane 105 inside the molecular sieve tank 1 through the first gas guide channel 1012. The switch chamber 106 is connected to the inner cavity of the second molecular sieve membrane 1051 inside the molecular sieve tank 1 through the second gas guide channel 1022. Several second exhaust holes 1021 are provided at the top of the second separation chamber 102 and at the outer ring of the second molecular sieve membrane 1051. The second exhaust holes 1021 connect the gas storage chamber 104 and the second separation chamber 102. The switch chamber 106 is a cylindrical channel, and a hollow sliding sleeve 1061 is slidably connected inside the switch chamber 106. A vent hole is provided on the hollow sliding sleeve 1061 at the position corresponding to the second gas guide channel 1022. When the first molecular sieve membrane 105 becomes clogged after prolonged operation, the vent hole on the hollow sliding sleeve 1061 is connected to the second air guide channel 1022 by sliding the hollow sliding sleeve 1061. This allows the gas in the inner cavity of the first molecular sieve membrane 105 to be introduced into the inner cavity of the second molecular sieve membrane 1051, where it is adsorbed and separated. The separated gas is then introduced into the gas storage chamber 104 through the second exhaust port 1021.

[0021] The technical solutions described in the above embodiments of this application have at least the following technical effects or advantages: This utility model introduces gas through the inlet port 103. After the gas enters the first molecular sieve membrane 105, oxygen is adsorbed and separated. The separated gas then enters the inner cavity of the first separation chamber 101 and is introduced into the gas storage chamber 104 through the first exhaust port 1011, and finally discharged through the exhaust port 1041. When the first molecular sieve membrane 105 becomes clogged after prolonged operation, the vent hole on the hollow sliding sleeve 1061 is connected to the second air guide channel 1022 by sliding the hollow sliding sleeve 1061. This allows the gas in the inner cavity of the first molecular sieve membrane 105 to be introduced into the inner cavity of the second molecular sieve membrane 1051, where it is adsorbed and separated by the second molecular sieve membrane 1051. This avoids the need for frequent disassembly and replacement, greatly extending the service life. Example 2

[0022] An armature 1063 is provided at one end of the hollow sliding sleeve 1061 near the second separation chamber 102. An electromagnet 107 is provided on the bottom outer wall of the molecular sieve tank 1 at the position corresponding to the hollow sliding sleeve 1061, and the magnetized end of the electromagnet 107 corresponds to the armature 1063. A tension spring 1062 is connected between the end of the hollow sliding sleeve 1061 away from the armature 1063 and the inner wall of the switch chamber 106. A first pressure measuring air channel 1013 is provided on one side of the bottom of the molecular sieve tank 1, which is connected to the inner cavity of the first molecular sieve membrane 105 provided inside the first separation chamber 101, and a first pressure gauge is connected to the outer end of the first pressure measuring air channel 1013. A second pressure measuring air channel 1042 is provided on one side of the top of the molecular sieve tank 1, which is connected to the gas storage chamber 104, and a second pressure gauge is connected to the outer end of the second pressure measuring air channel 1042. The first pressure gauge detects the air pressure inside the first molecular sieve membrane 105, and the second pressure gauge detects the air pressure inside the gas storage chamber 104. When the first molecular sieve membrane 105 is blocked, the air pressure inside the first molecular sieve membrane 105 increases. When the difference between the air pressure values ​​measured by the first pressure and the second pressure exceeds a certain range, the existing PLC control chip controls the electromagnet 107 to work, so that the magnetized end of the electromagnet 107 attracts the armature 1063 until the vent hole opened on the hollow sliding sleeve 1061 is connected to the second air guide channel 1022, thereby automatically realizing the second molecular sieve membrane 1051 to be incorporated into the air channel.

[0023] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A medical oxygen generating apparatus comprising a molecular sieve tank (1), characterized in that, The molecular sieve tank (1) is internally provided with a first separation chamber (101) and a second separation chamber (102), the first separation chamber (101) is internally provided with a first molecular sieve membrane (105), the second separation chamber (102) is internally provided with a second molecular sieve membrane (1051), the upper portion of the first separation chamber (101) and the second separation chamber (102) is provided with a gas storage chamber (104), the top of the gas storage chamber (104) is provided with a gas inlet interface (103), the gas inlet interface (103) is communicated with the inner cavity of the first molecular sieve membrane (105) arranged in the first separation chamber (101), the top of the gas storage chamber (104) is provided with a gas outlet interface (1041), the gas outlet interface (1041) is communicated with the gas storage chamber (104), a plurality of first gas discharge holes (1011) are arranged at the top of the first separation chamber (101) and located at the outer circle position of the first molecular sieve membrane (105), the first gas discharge holes (1011) are communicated with the gas storage chamber (104) and the first separation chamber (101), the bottom of the molecular sieve tank (1) is provided with an opening and closing chamber (106), the opening and closing chamber (106) is communicated with the inner cavity of the first molecular sieve membrane (105) arranged in the molecular sieve tank (1) through a first gas guide channel (1012), the opening and closing chamber (106) is communicated with the inner cavity of the second molecular sieve membrane (1051) arranged in the molecular sieve tank (1) through a second gas guide channel (1022), a plurality of second gas discharge holes (1021) are arranged at the top of the second separation chamber (102) and located at the outer circle position of the second molecular sieve membrane (1051), the second gas discharge holes (1021) are communicated with the gas storage chamber (104) and the second separation chamber (102).

2. The medical oxygen generating apparatus according to claim 1, wherein The opening and closing chamber (106) is a cylindrical channel, and a hollow sliding sleeve (1061) is slidably connected in the opening and closing chamber (106), and a ventilation hole is arranged in the hollow sliding sleeve (1061) and corresponds to the position of the second gas guide channel (1022).

3. The medical oxygen generating apparatus according to claim 2, wherein The end of the hollow sliding sleeve (1061) close to the second separation chamber (102) is provided with an armature (1063), the bottom outer wall of the molecular sieve tank (1) and corresponding to the position of the hollow sliding sleeve (1061) is provided with an electromagnet (107), and the magnetization end of the electromagnet (107) corresponds to the armature (1063).

4. The medical oxygen generating apparatus according to claim 3, wherein The end of the hollow sliding sleeve (1061) away from the armature (1063) is connected with the inner cavity wall of the opening and closing chamber (106) through a tension spring (1062).

5. The medical oxygen generating apparatus according to claim 1, wherein The bottom side of the molecular sieve tank (1) is provided with a first pressure measuring gas channel (1013) communicated with the inner cavity of the first molecular sieve membrane (105) arranged in the first separation chamber (101), and the outer end of the first pressure measuring gas channel (1013) is connected with a first air pressure gauge.

6. The medical oxygen generating apparatus according to claim 1, wherein The top side of the molecular sieve tank (1) is provided with a second pressure measuring gas channel (1042) communicated with the gas storage chamber (104), and the outer end of the second pressure measuring gas channel (1042) is connected with a second air pressure gauge.

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