Integrated adsorption tower of oxygen generator

Abstract

The integrated adsorption tower of the oxygenerator comprises an adsorption tower main body, a gas inlet integrated cover part and a gas outlet integrated cover part which are arranged at two ends of the adsorption tower main body, and a reversing valve arranged on the gas inlet integrated cover part, two molecular sieve cylinders and two air storage tanks are arranged in the adsorption tower main body, the nitrogen removal and noise reduction cylinder is positioned in the middles of the two molecular sieve cylinders and the two air storage tanks, the molecular sieve cylinders are communicated with the air storage tanks, the molecular sieve cylinders can be communicated with the nitrogen removal and noise reduction cylinder under the control of a reversing valve, the reversing valve controls air to alternately enter and remove nitrogen, the molecular sieve cylinders are filled with adsorbents, and the adsorbents are communicated with the nitrogen removal and noise reduction cylinder. The two molecular sieve barrels are integrated on one adsorption tower, so that the assembly difficulty is reduced, the production efficiency is improved, the space utilization rate is improved, and the nitrogen discharge noise is reduced by arranging the silencing barrel.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of oxygen production, in particular to an integrated adsorption tower of oxygen generator. BACKGROUND

[0002] At present, the commonly used oxygen generator on the market is mostly a molecular sieve oxygen generator, which generally adopts a cycle period of pressurized adsorption and depressurized desorption to make compressed air alternately enter the adsorption tower to realize oxygen and nitrogen separation, thereby continuously outputting high-purity oxygen.

[0003] Generally, the oxygen generator adopts two independent adsorption towers, and the traditional method has the following disadvantages: 1. The two adsorption towers are separated, and it is difficult to uniformly adjust the parameters, so the working efficiency is not high; 2. The two adsorption towers need to be combined into one through a connecting piece, which requires more assembly space, more parts, complex assembly and cooperation, and inconvenient installation. For example, in the Chinese utility model with the publication number CN221015274U, an adsorption tower device of an oxygen generator is disclosed, which is used for oxygen production by setting two adsorption towers. The device has more parts, complex pipelines, troublesome assembly, and large assembly space.

[0004] Moreover, the noise of the pressure swing adsorption oxygen generator is mainly low-frequency noise, and the sound sources mainly include the following aspects: intake noise, exhaust noise and compressor noise, among which the exhaust noise is the most obvious. At the exhaust pipe opening, the high-speed airflow is ejected from the pipe, impacting and shearing the surrounding stationary air, causing severe airflow disturbance near the nozzle, thereby generating high-level aerodynamic noise, forming exhaust jet noise, which is the largest noise source. The exhaust silencer of the traditional oxygen generator is usually connected to the nitrogen exhaust port of the adsorption tower through a pipeline, which does not eliminate noise in time, and the noise is large. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an integrated adsorption tower of oxygen generator, which reduces the assembly and assembly difficulty and improves the oxygen production efficiency.

[0006] To achieve the above-mentioned purpose, the utility model realizes the following technical scheme: an integrated adsorption tower of oxygen generator, which comprises an adsorption tower main body, an intake integrated cover component and an exhaust integrated cover component installed at both ends of the adsorption tower main body, and a reversing valve installed on the intake integrated cover component, wherein the adsorption tower main body is provided with a molecular sieve cylinder, a gas storage tank and a nitrogen exhaust silencer; the molecular sieve cylinder is in communication with the gas storage tank, the molecular sieve cylinder can be in communication with the nitrogen exhaust silencer under the control of the reversing valve, and the molecular sieve cylinder is filled with an adsorbent.

[0007] The adsorption tower is provided with four main parts, which is convenient for disassembly and installation, and the nitrogen exhaust silencer is provided, which can reduce the exhaust noise when the adsorption tower exhausts.

[0008] Further technical solutions, the molecular sieve cylinder is provided with at least two, and is arranged on both sides of the nitrogen exhaust muffler.

[0009] Beneficial effects, two molecular sieve cylinders can alternately carry out oxygen production operation, and the oxygen production efficiency is improved.

[0010] Further technical solutions, the gas storage tank is provided with at least one, and the gas storage tank is located on one side of the nitrogen exhaust muffler.

[0011] Further technical solutions, the air inlet integrated cover component is provided with an air inlet channel and a nitrogen exhaust channel, the air inlet channel is used for introducing compressed air into the molecular sieve cylinder, and the nitrogen exhaust channel is used for exhausting gas in the molecular sieve cylinder into the nitrogen exhaust muffler.

[0012] Further technical solutions, the molecular sieve cylinder is provided with two, the air inlet integrated cover component includes an air inlet cover, two air inlet molecular sieve cylinder cavities are arranged on the air inlet cover, the two air inlet molecular sieve cylinder cavities are respectively arranged on the two molecular sieve cylinders, and the two air inlet molecular sieve cylinder cavities are respectively communicated with the two molecular sieve cylinders, a nitrogen inlet is arranged on the air inlet cover, the nitrogen inlet is located between the two air inlet molecular sieve cylinder cavities and is communicated with the nitrogen exhaust muffler, a first gas storage cavity and a second gas storage cavity are arranged on the air inlet cover, the first gas storage cavity and the second gas storage cavity are located on both sides of the nitrogen inlet and are communicated with the gas storage tank.

[0013] Further technical solutions, the air inlet cover is fixed with a valve seat, the air inlet channel includes a first air inlet hole and a second air inlet hole arranged on the valve seat, the nitrogen exhaust channel is an exhaust hole arranged on the valve seat, the exhaust hole is communicated with the nitrogen inlet, the air inlet cover is provided with two air inlet hole channels, and the first air inlet hole and the second air inlet hole are respectively communicated with the two air inlet molecular sieve cylinder cavities through the two air inlet hole channels.

[0014] Beneficial effects, the air inlet pipeline and the like of the air inlet part are integrated on the air inlet cover, the number of parts is reduced, subsequent installation is facilitated, and assembly difficulty is reduced.

[0015] Further technical solutions, the air outlet integrated cover component is provided with an oxygen storage channel for communicating the molecular sieve cylinder and the gas storage tank, the air outlet integrated cover component is provided with a communication passage away from one side of the adsorption tower main body, and the communication passage is used for communicating at least two molecular sieve cylinders.

[0016] Further technical solutions, the molecular sieve cylinder is provided with two, the outlet gas integrated cover component includes an outlet gas cover, two outlet gas molecular sieve cylinder cavities are opened on the outlet gas cover, two outlet gas molecular sieve cylinder cavities are covered on two molecular sieve cylinders respectively, two outlet gas molecular sieve cylinder cavities are communicated with two molecular sieve cylinders respectively, a third gas storage cavity and a fourth gas storage cavity are opened on the outlet gas cover, a gas storage through hole is arranged between the third gas storage cavity and the fourth gas storage cavity, the gas storage through hole communicates the third gas storage cavity and the fourth gas storage cavity, two oxygen outlets are arranged in the third gas storage cavity, an outlet gas hole is opened on the side wall of two outlet gas molecular sieve cylinder cavities, the outlet gas hole is communicated with the oxygen outlet, the oxygen outlet is communicated with the third gas storage cavity, a one-way valve is fixed in the oxygen outlet, a nitrogen outlet cavity is opened on the outlet gas cover, a nitrogen discharge port is arranged in the nitrogen outlet cavity, the communication passage is provided with two upward mounting holes, two mounting holes are communicated with two outlet gas holes respectively, and a throttle valve is arranged in two mounting holes.

[0017] Beneficial effects, the outlet gas part is integrated with the outlet gas cover, the number of parts is reduced, subsequent installation is facilitated, part of oxygen can flow out through the throttle valve, and the other molecular sieve cylinder is backwashed and cleaned.

[0018] Further technical solutions, the first oxygen outlet and the second oxygen outlet are arranged on the inlet gas cover, the first oxygen outlet and the second oxygen outlet are communicated with the first gas storage cavity, and a concentration sensor is arranged on the second oxygen outlet.

[0019] The concentration sensor can detect the concentration of discharged oxygen in real time, so as to judge whether the oxygen produced by the adsorption tower meets the standard.

[0020] Further technical solutions, the reversing valve includes a gas valve body, an adsorption tower inlet is mounted on the gas valve body, a gas valve left gas port, a gas valve right gas port and a gas valve nitrogen discharge port are opened on the gas valve body, the gas valve left gas port and the gas valve right gas port can be communicated with the adsorption tower inlet respectively, the gas valve left gas port and the gas valve right gas port can be communicated with the gas valve nitrogen discharge port respectively, the exhaust hole is communicated with the gas valve nitrogen discharge port, the first inlet hole is communicated with the gas valve left gas port, and the second inlet hole is communicated with the gas valve right gas port.

[0021] Beneficial effects, the reversing valve can alternately control air to enter two molecular sieve cylinders and discharge nitrogen, so as to control oxygen production operation and improve oxygen production efficiency.

[0022] Further technical solutions, the upper of the air outlet integrated cover component and the air inlet integrated cover component is provided with several threaded holes, the periphery of the adsorption tower body is provided with several threaded pipes, the air inlet integrated cover component and the air outlet integrated cover component are fixed on the two ends of the adsorption tower body through bolts.

[0023] Beneficial effects, by setting corresponding threaded holes and threaded pipes on the two sides of the adsorption tower body and the air inlet cover and the air outlet cover, the assembly of the whole adsorption tower is facilitated, the adsorption tower body and the air inlet cover and the air outlet cover are quickly assembled by screwing the bolts, and the assembly speed is improved.

[0024] Further technical solutions, the reversing valve and the air inlet integrated cover component are installed with an air valve sealing ring, the air inlet integrated cover component and the adsorption tower body, and the air outlet integrated cover component and the adsorption tower body are all installed with a first sealing ring.

[0025] Beneficial effects, by setting the sealing ring, the sealing effect can be improved, and air leakage is prevented.

[0026] Further technical solutions, the nitrogen discharge muffler is installed with a sound attenuation material.

[0027] Beneficial effects, by installing the sound attenuation material, the noise reduction effect can be improved.

[0028] In summary, the utility model has the following beneficial effects: the adsorption tower integrates the air inlet integrated cover component, the air outlet integrated cover component, the molecular sieve cylinder, the nitrogen discharge muffler, the gas storage tank and the threaded pipe together, reduces the number of parts, has simple structure, reduces the assembly difficulty, improves the production efficiency, and improves the space utilization.

[0029] The nitrogen discharged from the oxygen generator integrated adsorption tower of the application is directly output to the nitrogen discharge muffler, the nitrogen discharge muffler is filled with a sound attenuation material, the exhaust noise is treated in time, the exhaust noise is greatly reduced, the molecular sieve cylinder and the gas storage tank are distributed around the nitrogen discharge muffler, and the exhaust noise is also isolated, further reducing the exhaust noise.

[0030] By integrating two molecular sieve cylinders on one adsorption tower body, the assembly difficulty is reduced, and the two molecular sieve cylinders are controlled by the reversing valve to alternately produce oxygen, improving the oxygen production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0032] Figure 1 It is a three-dimensional structure diagram of the integrated adsorption tower of the oxygen generator in the application;

[0033] Figure 2 It is an exploded view of the integrated adsorption tower of the oxygen generator in the application;

[0034] Figure 3 It is a first three-dimensional structure diagram of the integrated inlet cover component in the application;

[0035] Figure 4 It is a second three-dimensional structure diagram of the integrated inlet cover component in the application;

[0036] Figure 5 It is a sectional view of the integrated inlet cover component in the application;

[0037] Figure 6 It is a top view of the adsorption tower in the application;

[0038] Figure 7 It is an exploded view of the integrated outlet cover component in the application;

[0039] Figure 8 It is a three-dimensional structure diagram of the integrated outlet cover component in the application;

[0040] Figure 9 It is a sectional view of the integrated outlet cover component in the application;

[0041] Figure 10 It is a three-dimensional structure diagram of the reversing valve in the application.

[0042] In the figure: 100, integrated cover component of air inlet; 101, air inlet cover; 111, first molecular sieve cylinder cavity; 112, second molecular sieve cylinder cavity; 113, air inlet channel; 114, first gas storage cavity; 115, second gas storage cavity; 131, first oxygen outlet connector; 132, second oxygen outlet connector; 133, nitrogen inlet; 140, valve seat; 141, first air inlet hole; 142, second air inlet hole; 143, exhaust hole; 144, valve fixing column; 200, adsorption tower main body; 210, molecular sieve cylinder; 211, first molecular sieve cylinder; 212, second molecular sieve cylinder; 220, threaded pipe; 230, nitrogen exhaust muffler; 240, gas storage tank; 241, first gas storage tank; 242, second gas storage tank; 300, integrated cover component of air outlet; 301, air outlet cover; 302, communication passage; 303, mounting hole; 311, third molecular sieve cylinder cavity; 312, fourth molecular sieve cylinder cavity; 313, third gas storage cavity; 314, fourth gas storage cavity; 315, nitrogen exhaust port; 316, gas storage through hole; 317, oxygen outlet port; 318, air outlet channel; 319, nitrogen outlet; 320, one-way valve; 330, throttle valve; 340, pressing plate; 350, second sealing ring; 360, screw; 400, reversing valve; 410, valve main body; 420, valve pressing plate; 430, adsorption tower air inlet; 440, left gas port of valve; 450, nitrogen exhaust port of valve; 460, right gas port of valve; 470, electromagnetic valve group; 480, positioning groove; 500, first sealing ring; 600, sealing ring of valve. DETAILED DESCRIPTION

[0043] The utility model will be further described in detail in connection with the embodiments, but the implementation mode of the utility model is not limited to this, the technical scheme in the application example is clearly and completely described, obviously, the described embodiment is only a part of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the application.

[0044] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0045] In addition, the descriptions such as "first", "second", etc. in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features indicated or implying the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0046] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing", etc. should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In addition, the technical solutions of various embodiments of the present application can be combined with each other, but it must be based on the fact that those skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the present application.

[0048] The accompanying drawings Figures 1-10 As shown in the drawings, it is an integrated adsorption tower of an oxygen generator, which comprises an adsorption tower body 200, an air inlet integrated cover part 100 and an air outlet integrated cover part 300 installed at both ends of the adsorption tower body 200, and a reversing valve 400 installed on the air inlet integrated cover part 100, wherein the adsorption tower body 200 comprises a molecular sieve cylinder 210, a gas storage tank 240 and a nitrogen exhaust muffler 230 opened in the adsorption tower body 200, the molecular sieve cylinder 210 is provided with an adsorbent filled therein, and the adsorbent is used to adsorb the nitrogen component in the air pumped into the molecular sieve cylinder 210.

[0049] In the present embodiment, as Figure 6As shown, the molecular sieve cylinder 210 is provided with two, one is a first molecular sieve cylinder 211, and the other is a second molecular sieve cylinder 212, the first molecular sieve cylinder 211 and the second molecular sieve cylinder 212 are the same in size and shape, the first molecular sieve cylinder 211 and the second molecular sieve cylinder 212 are symmetrically arranged relative to the nitrogen exhaust muffler 230, the nitrogen exhaust muffler 230 is arranged between the first molecular sieve cylinder 211 and the second molecular sieve cylinder 212, the gas tank 240 is provided with two, which are a first gas tank 241 and a second gas tank 242, the first gas tank 241 and the second gas tank 242 are symmetrically arranged relative to the nitrogen exhaust muffler 230, the second gas tank 242 is used for storing oxygen, the nitrogen exhaust muffler 230 is provided with a sound-absorbing material, in this embodiment, the sound-absorbing material can be sound-absorbing cotton, the first molecular sieve cylinder 211, the second molecular sieve cylinder 212, the first gas tank 241 and the second gas tank 242 are distributed around the nitrogen exhaust muffler 230, and the exhaust sound is isolated, so that the exhaust noise is reduced.

[0050] In one embodiment, as shown in Figures 2-6 As shown, the air inlet integrated cover component 100 includes an air inlet cover 101, two air inlet molecular sieve cylinder cavities 110 opened on the air inlet cover 101, a nitrogen inlet 133 opened in the middle part of the air inlet cover 101, and the two air inlet molecular sieve cylinder cavities 110 are a first molecular sieve cylinder cavity 111 and a second molecular sieve cylinder cavity 112, which are symmetrically arranged relative to the nitrogen inlet 133 and located on the two sides of the nitrogen inlet 133, respectively, the air inlet cover 101 is provided with a first gas storage cavity 114 and a second gas storage cavity 115, which are symmetrically arranged relative to the air inlet channel 113, the air inlet cover 101 is provided with a first oxygen outlet connector 131 and a second oxygen outlet connector 132, the first oxygen outlet connector 131 and the second oxygen outlet connector 132 communicate with the first gas storage cavity 114, and the first oxygen outlet connector 131 and the second oxygen outlet connector 132 are arranged on the side opposite to the air inlet molecular sieve cylinder cavity 110.

[0051] Specifically, the air inlet cover 101 covers one end of the adsorption tower body 200, so that the air inlet molecular sieve cylinder cavities 110 cover the molecular sieve cylinders 210, that is, the first molecular sieve cylinder cavity 111 covers the second molecular sieve cylinder 212, the second molecular sieve cylinder cavity 112 covers the first molecular sieve cylinder 211, the first gas storage cavity 114 covers the second gas tank 242, and the second gas storage cavity 115 covers the first gas tank 241, so as to close the top end of the adsorption tower body 200.

[0052] The first oxygen outlet joint 131 delivers oxygen in the second gas tank 242 and the first gas tank 241 to the oxygen outlet of the oxygen generator for the user to use. The second oxygen outlet joint 132 is connected to the concentration sensor, which is specifically an oxygen concentration sensor, for detecting the concentration of oxygen.

[0053] In one embodiment, a valve seat 140 is fixed on the side of the air inlet cover 101, which is integrally cast with the air inlet cover 101. The valve seat 140 is provided with an exhaust hole 143, and first and second air inlet holes 141 and 142 are arranged on both sides of the exhaust hole 143. The exhaust hole 143 is connected to the nitrogen inlet 133. The air inlet cover 101 is provided with two air inlet channels 113. The first air inlet channel 113 is connected to the first molecular sieve cylinder cavity 111 and the second air inlet hole 142, and the second air inlet channel 113 is connected to the first air inlet hole 141 and the second molecular sieve cylinder cavity 112.

[0054] In one embodiment, as shown in Figure 3 、 Figure 4 、 Figure 5 and Figure 10 , the reversing valve 400 is an electromagnetic valve, which includes a valve body 410. The valve body 410 is provided with four ports, namely an adsorption tower air inlet 430, a valve nitrogen outlet 450, a valve left air port 440, and a valve right air port 460. The four ports correspond to the pressure port, the return air port, the A working port, and the B working port of the reversing valve 400 in sequence. The valve nitrogen outlet 450, the valve left air port 440, and the valve right air port 460 are on the same installation side of the reversing valve 400. In the assembled state, the installation side of the reversing valve 400 is sealed and fixed with the installation side of the valve seat 140.

[0055] Specifically, the valve nitrogen outlet 450 is aligned with the exhaust hole 143, the valve left air port 440 is aligned with the first air inlet hole 141, and the valve right air port 460 is aligned with the second air inlet hole 142. The lower side of the valve body 410 is provided with a valve pressing plate 420, and the valve pressing plate 420 is provided with an electromagnetic valve group 470.

[0056] In one embodiment, as shown in Figure 2 、 Figure 3 and Figure 4 , the edges of the first air inlet hole 141, the second air inlet hole 142, and the exhaust hole 143 are provided with a closed-loop valve sealing groove. The valve sealing groove is provided with a valve sealing ring 600. In the assembled state, the installation surface of the reversing valve 400 is sealed and fixed with the installation surface of the valve seat 140 through the valve sealing groove and the valve sealing ring 600.

[0057] In one embodiment, two symmetrical air valve fixing columns 144 are arranged on the mounting surface of the valve seat 140, and two symmetrical positioning grooves 480 are arranged on the air valve body 410, and the mounting surface of the valve seat 140 is positioned by the air valve fixing column 144 and the positioning groove 480 in the assembled state.

[0058] In one embodiment, as shown in Figures 6-9 , the air outlet integrated cover component 300 includes an air outlet cover 301, a one-way valve 320, a throttle valve 330, a pressing plate 340, a second sealing ring 350, and a screw 360. Two air outlet molecular sieve cylinder cavities 310 are arranged on the air outlet cover 301, and the two air outlet molecular sieve cylinder cavities 310 are respectively a third molecular sieve cylinder cavity 311 and a fourth molecular sieve cylinder cavity 312. A nitrogen outlet cavity 319 is also arranged on the air outlet cover 301, and a nitrogen discharge port 315 is arranged in the nitrogen outlet cavity. A third gas storage cavity 313 and a fourth gas storage cavity 314 are arranged on both sides of the nitrogen discharge port 315. A gas storage through hole 316 is arranged in the air outlet cover 301, and the gas storage through hole 316 communicates the third gas storage cavity 313 and the fourth gas storage cavity 314, thereby ensuring the air pressure balance of the two molecular sieve cylinders 210. Two oxygen outlets 317 are fixed in the third gas storage cavity 313, and a one-way valve 320 is fixedly installed in the oxygen outlet 317. An air outlet channel 318 is arranged on the side wall of the third molecular sieve cylinder cavity 311 and the fourth molecular sieve cylinder cavity 312. One air outlet channel 318 communicates the third molecular sieve cylinder cavity 311 and one oxygen outlet 317, and the other air outlet channel 318 communicates the fourth molecular sieve cylinder cavity 312 and the other oxygen outlet 317.

[0059] An air outlet cover 301 is arranged on the side of the air outlet cover 301 away from the adsorption tower body 200, and a communication passage 302 is arranged on the air outlet cover 301. Two mounting holes 303 extending upward are arranged on the communication passage 302, and the two mounting holes 303 respectively communicate with the two air outlet channels 318. A throttle valve 330 is installed in the communication passage 302, and a pressing plate 340 is installed at the bottom of the communication passage 302 by a screw 360. A second sealing ring 350 is installed between the pressing plate 340 and the air outlet cover 301, and the air outlet cover 301 seals the bottom of the communication passage 302.

[0060] As shown in Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8As shown, a portion of the oxygen flows from the outlet 318 through the throttle valve 330 to backflush and clean the other molecular sieve cylinder 210, while the other portion enters the gas storage tank 240 through the one-way valve 320. When the pressure at the inlet of the adsorption tower reaches the set switching pressure, the control board sends a control signal, and the reversing valve 400 actuates, connecting the inlets of the two molecular sieve cylinders 210 to achieve pressure equalization. After pressure equalization, the remaining gas in the adsorption tower is discharged into the atmosphere through the nitrogen purging silencer 230, completing the depressurization desorption and backflushing cleaning.

[0061] In one embodiment, such as Figures 1-9 As shown, several threaded holes are provided around the periphery of the air outlet cover 301 and the air inlet cover 101. Several threaded tubes 220 are provided around the periphery of the adsorption tower body 200. In this embodiment, there are eight threaded holes and eight threaded tubes 220. The air inlet integrated cover component 100 and the air outlet integrated cover component 300 are fixed between the air inlet integrated cover component 100 and the air outlet integrated cover component 300 by tightening screws into the threaded tubes 220 and the threaded holes. A first sealing ring 500 is installed at the connection between the air inlet integrated cover component 100 and the adsorption tower body 200, and between the air outlet integrated cover component 300 and the adsorption tower body 200 to ensure airtightness.

[0062] Specifically, such as Figures 1-10 As shown, when the oxygen generator is working, air enters the gas valve body 410 through the adsorption tower inlet 430. The reversing valve 400 controls the air to alternately enter the two molecular sieve cylinders 210. For example, high-pressure air enters the first molecular sieve cylinder 211, and the pressure inside the first molecular sieve cylinder 211 increases. This is the pressurization stage of the first molecular sieve cylinder 211. As the pressure increases, the adsorbent preferentially adsorbs nitrogen, and oxygen is discharged into the gas storage tank 240 through the oxygen outlet 317. When the adsorbent in the first molecular sieve cylinder 211 is saturated, the first molecular sieve cylinder 211 is connected to the nitrogen discharge port 450 of the gas valve. Nitrogen is discharged from the nitrogen discharge port 450 of the gas valve through the exhaust hole 143 on the air inlet cover 101 to the nitrogen inlet 133. At this time, the reversing valve 400 switches to reverse, the second molecular sieve cylinder 212 is connected to the high-pressure air, and the first molecular sieve cylinder 211 is connected to the nitrogen discharge port 450 of the gas valve. The high-pressure gas in the first molecular sieve cylinder 211 is discharged into the atmosphere, and the pressure drops sharply. This is the desorption stage of the first molecular sieve cylinder 211.

[0063] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand and implement the content of this utility model. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An integrated adsorption column for an oxygen generator, characterized by comprising: The application relates to an adsorption tower, which comprises an adsorption tower body (200), air inlet integrated cover components (100) and air outlet integrated cover components (300) installed at two ends of the adsorption tower body (200), and a reversing valve (400) installed on the air inlet integrated cover components (100), wherein a molecular sieve cylinder (210), a gas storage tank (240) and a nitrogen discharge muffler (230) are arranged in the adsorption tower body (200); the molecular sieve cylinder (210) is communicated with the gas storage tank (240); the molecular sieve cylinder (210) is communicated with the nitrogen discharge muffler (230) under the control of the reversing valve (400); and the molecular sieve cylinder (210) is filled with adsorbents.

2. The integrated adsorption column of claim 1, wherein, The molecular sieve cylinder (210) is provided with at least two molecular sieve cylinders and is arranged on both sides of the nitrogen discharge muffler (230).

3. The integrated adsorption column of claim 1, wherein, The gas storage tank (240) is provided with at least one gas storage tank, and the gas storage tank (240) is arranged on one side of the nitrogen discharge muffler (230).

4. The integrated adsorption column of claim 1, wherein, The air inlet integrated cover components (100) are provided with an air inlet channel and a nitrogen discharge channel, the air inlet channel is used for introducing compressed air into the molecular sieve cylinder (210), and the nitrogen discharge channel is used for discharging gas in the molecular sieve cylinder (210) into the nitrogen discharge muffler (230).

5. The integrated adsorption column of claim 4, wherein, The molecular sieve cylinder (210) is provided with two molecular sieve cylinders, the air inlet integrated cover components (100) comprise an air inlet cover (101), two air inlet molecular sieve cylinder cavities (110) are arranged on the air inlet cover (101), the two air inlet molecular sieve cylinder cavities (110) are respectively arranged on the two molecular sieve cylinders (210) and are respectively communicated with the two molecular sieve cylinders (210), a nitrogen inlet (133) is arranged on the air inlet cover (101), the nitrogen inlet (133) is arranged between the two air inlet molecular sieve cylinder cavities (110) and is communicated with the nitrogen discharge muffler (230), a first gas storage cavity (114) and a second gas storage cavity (115) are arranged on the air inlet cover (101), the first gas storage cavity (114) and the second gas storage cavity (115) are arranged on both sides of the nitrogen inlet (133) and are communicated with the gas storage tank (240).

6. The integrated adsorption column of claim 5, wherein, The air inlet cover (101) is fixed with a valve seat (140), the air inlet channel comprises a first air inlet hole (141) and a second air inlet hole (142) arranged on the valve seat (140), the nitrogen discharge channel is an exhaust hole (143) arranged on the valve seat (140), the exhaust hole (143) is communicated with the nitrogen inlet (133), the air inlet cover (101) is provided with two air inlet hole channels (113), the first air inlet hole (141) and the second air inlet hole (142) are respectively communicated with the two air inlet molecular sieve cylinder cavities (110) through the two air inlet hole channels (113).

7. The integrated adsorption column of claim 2, wherein, The out-gas integrated cover component (300) is provided with an oxygen storage channel for connecting the molecular sieve cylinder (210) and the gas storage tank (240), and is provided with a communication passage (302) away from the adsorption tower body (200), which is used for connecting at least two molecular sieve cylinders (210).

8. The integrated adsorption column of claim 7, wherein, The molecular sieve cylinder (210) is provided with two out-gas integrated cover components (300), which include an out-gas cover (301) provided with two out-gas molecular sieve cylinder cavities (310) covering two molecular sieve cylinders (210) respectively, and the out-gas cover (301) is provided with a third gas storage cavity (313) and a fourth gas storage cavity (314), and a gas storage through hole (316) is arranged between the third gas storage cavity (313) and the fourth gas storage cavity (314), the gas storage through hole (316) connects the third gas storage cavity (313) and the fourth gas storage cavity (314), two oxygen outlets (317) are arranged in the third gas storage cavity (313), an out-gas hole (318) is arranged on the side wall of each of the two out-gas molecular sieve cylinder cavities (310), the out-gas hole (318) is in communication with the oxygen outlet (317), the oxygen outlet (317) is in communication with the third gas storage cavity (313), a one-way valve (320) is fixed in the oxygen outlet (317), a nitrogen outlet cavity (319) is arranged on the out-gas cover (301), and a nitrogen outlet (315) is arranged in the nitrogen outlet cavity (319), the communication passage (302) is provided with two upward mounting holes (303), the two mounting holes (303) are respectively in communication with the two out-gas holes (318), and a throttle valve (330) is arranged in each of the two mounting holes (303).

9. The integrated adsorption column of claim 5, wherein, The first oxygen outlet (131) and the second oxygen outlet (132) are arranged on the inlet cover (101) and are in communication with the first gas storage cavity (114), and a concentration sensor is arranged on the second oxygen outlet (132).

10. The integrated adsorption column of claim 6, wherein, The reversing valve (400) comprises a gas valve body (410) on which an adsorption tower gas inlet (430) is mounted, and on which a gas valve left gas port (440), a gas valve right gas port (460) and a gas valve nitrogen discharge port (450) are formed, the gas valve left gas port (440) and the gas valve right gas port (460) can respectively communicate with the adsorption tower gas inlet (430), the gas valve left gas port (440) and the gas valve right gas port (460) can respectively communicate with the gas valve nitrogen discharge port (450), the exhaust hole (143) communicates with the gas valve nitrogen discharge port (450), the first gas inlet hole (141) communicates with the gas valve left gas port (440), and the second gas inlet hole (142) communicates with the gas valve right gas port (460).

11. The integrated adsorption column of claim 1, wherein, The gas outlet integrated cover component (300) and the gas inlet integrated cover component (100) are both provided with a plurality of threaded holes, the adsorption tower body (200) is provided with a plurality of threaded pipes (220) around, and the gas inlet integrated cover component (100) and the gas outlet integrated cover component (300) are fixed on both ends of the adsorption tower body (200) by bolts.

12. The integrated adsorption column of claim 1, wherein, The gas valve sealing ring (600) is mounted between the reversing valve (400) and the gas inlet integrated cover component (100), and the first sealing ring (500) is mounted between the gas inlet integrated cover component (100) and the adsorption tower body (200) and between the gas outlet integrated cover component (300) and the adsorption tower body (200).

13. The integrated adsorption column of claim 1-12, wherein, The nitrogen discharge silencer (230) is provided with silencing materials.

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