A high efficiency air flow distribution device and method for an oxygen generation system

Abstract

The present application relates to oxygen production equipment technical field, especially in kind of high -efficient air flow distribution device and method for oxygen production system, a kind of high -efficient air flow distribution device for oxygen production system, including adsorption tank and carousel, adsorption tank is vertically arranged, carousel is rotationally arranged in adsorption tank around its axis, multiple chambers are arranged in adsorption tank, multiple chambers are located above carousel and spiral upwards, sieve plate is arranged between two adjacent chambers in the circumferential direction of adsorption tank, first gas inlet is arranged on carousel, and first gas inlet is communicated with the chamber adjacent to carousel.In the adjacent two chambers, sieve plate is arranged, which improves the effect of gas adsorption. The gas is mixed again when it enters each chamber, which is beneficial to the subsequent adsorption of sieve plate. The carousel is rotationally arranged. When the first sieve plate through which the gas passes is saturated, the rotation of the carousel can make the first gas inlet directly ventilate into the next chamber, avoiding the influence of the saturated sieve plate on the flow speed of the gas.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oxygen production equipment, in particular to a high-efficiency airflow distribution device and method for an oxygen production system. BACKGROUND

[0002] In the field of industrial oxygen production, the adsorption method has become one of the current mainstream oxygen production technologies due to its significant advantages of simple operation and controllable cost. The core of this technology lies in the adsorption tower of the oxygen production system. The molecular sieve adsorbent filled in the tower can selectively adsorb nitrogen and other impurity gases, thereby realizing oxygen purification.

[0003] In the existing oxygen production system, the airflow passing through the molecular sieve needs to diffuse along a fixed path, which causes the area of the molecular sieve that first contacts the airflow to reach the adsorption saturation state first and lose the adsorption capacity. However, the subsequent airflow will continue to flow through this saturated area, which not only cannot complete the adsorption of impurities, but also hinders the airflow flow due to the lack of adsorption function, resulting in unnecessary resistance and increasing the energy consumption of airflow transmission. At the same time, it also causes the utilization rate of the molecular sieve in other unsaturated areas to be low, and the overall adsorption efficiency is greatly reduced. SUMMARY

[0004] Therefore, it is necessary to provide a high-efficiency airflow distribution device and method for an oxygen production system to solve the problem of local overload of the molecular sieve in the current oxygen production system during use.

[0005] The above-mentioned purpose is achieved by the following technical solutions:

[0006] A high-efficiency airflow distribution device for an oxygen production system, comprising an adsorption tank, a rotating disc, a monitoring mechanism, and a one-way mechanism. The adsorption tank is vertically arranged, the rotating disc is rotationally arranged in the adsorption tank coaxially with the adsorption tank, the adsorption tank is provided with a plurality of chambers, the plurality of chambers are arranged in sequence in a spiral upward direction around the axis of the adsorption tank above the rotating disc, and the rotation direction of the plurality of chambers from bottom to top is consistent with the rotation direction of the rotating disc. A sieve plate for allowing gas to pass through and purifying the gas is arranged between two adjacent chambers in the circumferential direction of the adsorption tank. A first gas inlet is arranged on the rotating disc and communicates with the chamber adjacent to the rotating disc in the vertical direction. The one-way mechanism is arranged on the sieve plate and located in the chamber adjacent to the rotating disc, and is used to control the gas flow in the chamber in the spiral direction of the plurality of chambers. An air outlet is arranged in the adsorption tank for discharging the gas purified by the sieve plate in the chamber. The monitoring mechanism is used to monitor the impurity concentration in the purified gas. The one-way mechanism is used to control the flow direction of the gas in the chamber communicating with the first gas inlet, so that the gas flows spirally upward.

[0007] Preferably, the plurality of sieve plates are arranged along a circumferential direction of the adsorption tank, and an enclosing plate is arranged between two adjacent sieve plates.

[0008] Preferably, the number of one-way mechanisms is consistent with the number of sieve plates, each one-way mechanism includes a bracket, a flap and a coil spring; the rotating direction of the rotating disc is forward, the bracket is arranged on the sieve plate and located on the front side of the sieve plate, the bracket is located in one chamber adjacent to the rotating disc, the flap is rotationally arranged on the bracket, the flap can abut against the bracket after rotation, and separate two adjacent sieve plates in the chamber; and the coil spring is arranged on the bracket and connected with the flap and the bracket, so that the flap always has a tendency to approach the bracket.

[0009] Preferably, a filter screen is arranged on the bracket, and the filter screen is located between the corresponding sieve plate and the flap and in contact with the flap.

[0010] Preferably, a cavity is arranged in the sieve plate, and the cavity is filled with zeolite, and the adsorption tank is provided with a pressure regulating mechanism for controlling the extrusion pressure between the zeolites in the sieve plate.

[0011] Preferably, the pressure regulating mechanism includes a positioning column, a plurality of telescopic rods and a reset member, the positioning column is rotationally arranged in the adsorption tank and located above the plurality of sieve plates, a first annular groove, a through groove and a second annular groove are arranged on the circumferential surface of the positioning column and arranged along a vertical direction, the through groove connects the first annular groove and the second annular groove, the through groove and the first gas inlet are located between the same two sieve plates, and the through groove is located at the rear side of the first gas inlet; the plurality of telescopic rods are arranged along the vertical direction and arranged around the positioning column, the lower end of each telescopic rod is slidingly arranged in the cavity in one sieve plate and abuts against the zeolite, and the upper end of the telescopic rod is slidingly arranged in the first annular groove or the second annular groove; the telescopic rod always has a tendency to extend, and the upper end of the telescopic rod is switched in the first annular groove and the second annular groove through the through groove; in the initial state, one end of the telescopic rod is located in the second annular groove; and the reset member is used to drive the telescopic rod to reset.

[0012] Preferably, the reset member includes an electromagnetic ring and a plurality of magnetic plates, the electromagnetic ring is arranged on the positioning column and located below the second annular groove, and each magnetic plate is arranged on one telescopic rod; the electromagnetic ring can attract the magnetic plates to approach after generating magnetism.

[0013] Preferably, the monitoring mechanism includes a first sensor and a second sensor, the first sensor is located in the chamber communicating with the gas outlet and monitors the impurity concentration in the exhaust gas; the second sensor is located in one of the chambers, and there is at least one chamber between the two chambers where the first sensor and the second sensor are located; and the rotating disc no longer rotates after the second sensor detects that the impurity concentration of the gas in the chamber exceeds a preset value.

[0014] Preferably, the high-efficiency gas flow distribution device for the oxygen production system further comprises an air compressor, a purifier, a pressure tank and a collection tank, the air compressor, the purifier and the pressure tank are sequentially arranged and communicated, the pressure tank and the adsorption tank are communicated, the pressure tank is used for introducing gas into the adsorption tank, and the adsorption tank and the collection tank are communicated.

[0015] The application further provides a use method of the high-efficiency gas flow distribution device for the oxygen production system, comprising the following steps:

[0016] S1, introducing air into the adsorption tank.

[0017] S2, after the gas enters one of the chambers, the gas passes through the sieve plate and flows into the next chamber.

[0018] S3, the monitoring mechanism detects the impurity concentration in the gas near the gas outlet, and controls the rotation of the rotating disc according to the impurity concentration.

[0019] S4, when the monitoring mechanism is normal, the rotating disc rotates into the next chamber every preset time, and rotates a circle along the circumferential direction.

[0020] The beneficial effects of the application are as follows: the spiral arrangement of the chambers can increase the path of the gas flow, the sieve plate is arranged between the adjacent two chambers, the effect of gas adsorption is improved, the gas is mixed again when entering into each chamber, which is beneficial to the subsequent adsorption of the sieve plate. The rotating disc is arranged, when the first sieve plate through which the gas passes is saturated, the rotation of the rotating disc can make the first gas inlet directly introduce gas into the next chamber, so as to avoid the influence of the saturated sieve plate on the flow speed of the gas and the purification efficiency; the one-way mechanism is arranged, so as to avoid the flow of the gas to the saturated sieve plate, and further improve the purification efficiency of the gas. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A structural schematic view of a high-efficiency gas flow distribution device for an oxygen production system is provided for the embodiment of the application;

[0022] Figure 2 A top view of an adsorption tank of a high-efficiency gas flow distribution device for an oxygen production system is provided for the embodiment of the application;

[0023] Figure 3 A Figure 2 sectional view in the direction of A-A;

[0024] Figure 4 A Figure 2 sectional view in the direction of B-B;

[0025] Figure 5 A Figure 4 enlarged view of E;

[0026] Figure 6 A front view of an adsorption tank of a high-efficiency airflow distribution device for an oxygen production system according to an embodiment of the present application;

[0027] Figure 7 A sectional view of the C-C direction in the adsorption tank of the high-efficiency airflow distribution device for the oxygen production system according to the embodiment of the present application; Figure 6 A sectional view of the D direction in the adsorption tank of the high-efficiency airflow distribution device for the oxygen production system according to the embodiment of the present application;

[0028] Figure 8 An enlarged view of the D direction in the adsorption tank of the high-efficiency airflow distribution device for the oxygen production system according to the embodiment of the present application; Figure 7 An enlarged view of the D direction in the adsorption tank of the high-efficiency airflow distribution device for the oxygen production system according to the embodiment of the present application; An enlarged view of the D direction in the adsorption tank of the high-efficiency airflow distribution device for the oxygen production system according to the embodiment of the present application;

[0029] An enlarged view of the D direction in the adsorption tank of the high-efficiency airflow distribution device for the oxygen production system according to the embodiment of the present application; Figure 9 An internal structure split view of the adsorption tank of the high-efficiency airflow distribution device for the oxygen production system according to the embodiment of the present application; An internal structure split view of the adsorption tank of the high-efficiency airflow distribution device for the oxygen production system according to the embodiment of the present application;

[0030] An internal structure split view of the adsorption tank of the high-efficiency airflow distribution device for the oxygen production system according to the embodiment of the present application; Figure 10 An internal structure split view of the adsorption tank of the high-efficiency airflow distribution device for the oxygen production system according to the embodiment of the present application; An internal structure split view of the adsorption tank of the high-efficiency airflow distribution device for the oxygen production system according to the embodiment of the present application;

[0031] Wherein:

[0032] 101, adsorption tank; 102, rotary disc; 103, sieve plate; 104, first air inlet; 105, air outlet; 106, sealing plate; 107, partition plate; 108, second air inlet; 109, connecting cylinder; 110, support; 111, flap; 112, coil spring; 113, motor; 114, filter screen; 115, cavity; 116, connecting rod; 117, zeolite; 120, positioning column; 121, telescopic rod; 122, first ring groove; 123, through groove; 124, second ring groove; 125, pressing plate; 126, protruding block; 127, electromagnetic ring; 128, spring; 200, air compressor; 201, purifier; 202, pressure tank; 203, collection tank. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions, and advantages of the present application clearer, further detailed explanations will be given below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely used to explain the present application and should not be used to limit the present application.

[0034] The serial numbers of components in the present application, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. Unless otherwise specified, the "connection" and "coupling" in the present application include direct and indirect connection (coupling). In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0036] As shown in Figures 1 to 10 The embodiment of the present application provides a high-efficiency airflow distribution device for an oxygen production system, which comprises an adsorption tank 101, a rotating disc 102, a monitoring mechanism and a one-way mechanism. The adsorption tank 101 is vertically arranged, the rotating disc 102 is rotationally arranged in the adsorption tank 101 and coaxial with the adsorption tank 101, a plurality of chambers are arranged in the adsorption tank 101, the plurality of chambers are arranged in sequence in a spiral upward direction above the rotating disc 102 and around the axis of the adsorption tank 101, and the rotation direction of the plurality of chambers from bottom to top is consistent with the rotation direction of the rotating disc 102. A sieve plate 103 for gas passing and purifying gas is arranged between two adjacent chambers in the circumferential direction of the adsorption tank 101, a first gas inlet 104 is arranged on the rotating disc 102 and communicates with the chamber adjacent to the rotating disc 102 in the vertical direction. The one-way mechanism is arranged on the sieve plate 103 and located in the chamber adjacent to the rotating disc 102, and is used for controlling the gas in the chamber to flow in the spiral direction of the plurality of chambers. An air outlet 105 is arranged in the adsorption tank 101 and used for discharging the gas purified by the sieve plate 103 in the chamber. The monitoring mechanism is used for monitoring the impurity concentration in the purified gas. The one-way mechanism is used for controlling the flow direction of the gas in the chamber communicating with the first gas inlet 104, so that the gas flows spirally upward.

[0037] The spiral-arranged chambers can increase the path of gas flow, and the sieve plate 103 is arranged between two adjacent chambers, which improves the effect of gas adsorption, and the gas is mixed again when entering each chamber, which is beneficial to the subsequent adsorption of the sieve plate 103. The rotating disc 102 is arranged to rotate, so that when the first sieve plate 103 through which the gas passes is saturated with adsorption, the rotation of the rotating disc 102 can make the first gas inlet 104 directly ventilate into the next chamber, avoiding the influence of the saturated sieve plate 103 on the flow speed of the gas and the purification efficiency; the one-way mechanism is arranged to avoid the flow of the gas to the saturated sieve plate 103, further improving the purification efficiency of the gas.

[0038] In the embodiment, the sieve plate 103 is provided with a plurality of sieve plates 103 arranged along the circumferential direction of the adsorption tank 101, and the adjacent two sieve plates 103 are provided with a sealing plate 106. The number of chambers in the vertical direction between the adjacent two sieve plates 103 is a plurality, and the plurality of chambers between the adjacent two sieve plates 103 are arranged in the vertical direction. The adjacent two chambers arranged in the vertical direction are provided with a partition plate 107, and the plurality of partition plates 107 extend upward in a spiral shape close to the sealing plate 106.

[0039] Specifically, the adsorption tank 101 is provided with a connecting cylinder 109 coaxial with the adsorption tank 101 and in contact with the rotating disc 102. The connecting cylinder 109 is arranged between the plurality of sieve plates 103 and in contact with the plurality of sieve plates 103. The plurality of chambers are spirally arranged around the connecting cylinder 109 under the action of the plurality of partition plates 107. Since the plurality of chambers are arranged in a spiral shape, the plurality of chambers arranged around the connecting cylinder 109 for one revolution are considered as one layer, which is divided into a plurality of layers in the vertical direction. The plurality of chambers located in the lowermost layer can be directly communicated with the first gas inlet 104 and blocked by the rotating disc 102, and the plurality of chambers located in the uppermost layer are blocked by the sealing plate 106. The gas entering the chamber from the first gas inlet 104 is purified and discharged from the gas outlet 105.

[0040] In the embodiment, the number of one-way mechanisms is consistent with the number of sieve plates 103. Each one-way mechanism includes a bracket 110, a flap 111, and a coil spring 112. The rotating direction of the rotating disc 102 is forward, the bracket 110 is arranged on the sieve plate 103 and located on the front side of the sieve plate 103, the bracket 110 is located in one chamber adjacent to the rotating disc 102, the flap 111 is rotationally arranged on the bracket 110, the flap 111 can rotate and abut against the bracket 110, and the abutment separates the adjacent two sieve plates 103 in the chamber, and the coil spring 112 is arranged on the bracket 110 and connects the flap 111 and the bracket 110, so that the flap 111 always has a tendency to approach the bracket 110.

[0041] Specifically, the rotation axis of the flap 111 extends in the vertical direction, and the flap 111 can be close to another sieve plate 103 in the chamber under the action of the airflow. A plurality of flaps 111 are arranged on each support 110, and when the plurality of flaps 111 abut against the support 110 under the action of the coil spring 112, the two flaps 111 in the chamber can be separated to prevent the gas in the chamber from flowing into the chamber behind. When the gas is filled into one of the chambers through the first gas inlet 104, the gas in the chamber can flow into the chamber in front of it and push the flap 111 in the front chamber to rotate until it reaches the chamber communicating with the gas outlet 105.

[0042] The adsorption tank 101 is provided with a motor 113 for driving the rotation of the turntable 102. The motor 113 is started once every predetermined time, and each time it drives the one-way rotation of the turntable 102, so that the first gas inlet 104 on the turntable 102 is communicated with the next chamber. The predetermined time of the motor 113 is controlled by the size of the sieve plate 103 in the chamber and the gas flow rate, so as to ensure that the sieve plate 103 can be fully utilized but not overused.

[0043] In this embodiment, the support 110 is provided with a filter screen 114, which is located between the corresponding sieve plate 103 and the flap 111 and in contact with the flap 111. The filter screen 114 is used to filter the gas passing through the sieve plate 103, intercept the zeolite 117 powder in the gas, and collect it to prevent the powder from affecting the purification effect of the subsequent sieve plate 103.

[0044] In this embodiment, the sieve plate 103 is provided with a cavity 115, and the cavity 115 is filled with zeolite 117. The adsorption tank 101 is provided with a pressure regulating mechanism for controlling the extrusion pressure between the zeolites 117 in the sieve plate 103.

[0045] Specifically, the zeolite 117 in the cavity 115 is in a granular form, and the cavity 115 is filled with a plurality of zeolites 117. The sieve plate 103 is provided with a through hole penetrating the sieve plate 103 in the circumferential direction of the adsorption tank 101, and the height of the through hole in the vertical direction is lower than the height of the zeolite 117 in the cavity 115. After long-term circulation, the sieve plate 103 will be worn by the impact of the airflow, resulting in gaps and affecting the purification effect. The pressure regulating mechanism is arranged to adjust the extrusion pressure between the zeolites 117 in the sieve plate 103, reduce the gap between the zeolites 117, and improve the purification effect.

[0046] In the embodiment, the pressure regulating mechanism comprises a positioning column 120, a telescopic rod 121 and a reset member. The positioning column 120 is rotationally arranged above the plurality of sieve plates 103 in the adsorption tank 101. A connecting rod 116 is arranged in the connecting cylinder 109. The connecting rod 116 is coaxial with the connecting cylinder 109 and is in spline connection with the positioning column 120 and the rotating disc 102 respectively. One end of the connecting rod 116 is connected with the output shaft of the motor 113. The motor 113 drives the rotating disc 102 to rotate and synchronously drives the positioning column 120 to rotate through the connecting rod 116. A first annular groove 122, a through groove 123 and a second annular groove 124 are arranged on the circumferential surface of the positioning column 120 in the vertical direction. The through groove 123 connects the first annular groove 122 and the second annular groove 124. The through groove 123 and the first gas inlet 104 are located between the same two sieve plates 103. The through groove 123 is located at the rear side of the first gas inlet 104. A plurality of telescopic rods 121 are arranged in the vertical direction and around the positioning column 120. The lower end of each telescopic rod 121 is slidingly arranged in the cavity 115 in one sieve plate 103 and abuts against the zeolite 117. The upper end of the telescopic rod 121 is slidingly arranged in the first annular groove 122 or the second annular groove 124. The telescopic rod 121 always has an elongation trend. The upper end of the telescopic rod 121 is switched in the first annular groove 122 and the second annular groove 124 through the through groove 123. In the initial state, one end of the telescopic rod 121 is located in the second annular groove 124. The reset member is used to drive the telescopic rod 121 to reset.

[0047] Specifically, one end of the telescopic rod 121 located in the cavity 115 is provided with a pressing plate 125. The pressing plate 125 is arranged in the cavity 115 and is in sliding connection with the sieve plate 103. The other end of the telescopic rod 121 is provided with a protruding block 126 extending in the radial direction of the telescopic rod 121. The telescopic rod 121 is in sliding connection with the positioning column 120 through the protruding block 126. The protruding block 126 is slidingly arranged in the first annular groove 122 or the second annular groove 124 and can be switched in the first annular groove 122 and the second annular groove 124 through the through groove 123. A spring 128 is sleeved on the telescopic rod 121. The spring 128 provides the telescopic rod 121 in the initial state with the elongation energy, so that the pressing plate 125 exerts pressure on the zeolite 117 in the cavity 115.

[0048] When the protruding block 126 is located in the first annular groove 122, the telescopic rod 121 still has an elongation trend. At this time, the pressure exerted by the pressing plate 125 on the zeolite 117 can still ensure that the zeolite 117 will not shake under the blowing of the gas flow.

[0049] In the initial state, the protrusions 126 on all the telescopic rods 121 are located in the second ring groove 124, at this time the zeolite 117 in the sieve plate 103 is subjected to the pre-pressure applied by the normal purified gas, which can ensure the purification effect of the zeolite 117 and improve the service life thereof. The first gas inlet 104 is initially located in the chamber corresponding to the lowermost partition plate 107, when the first gas inlet 104 enters the next chamber from the chamber, the end of the telescopic rod 121 corresponding to the sieve plate 103 between the two chambers and provided with the protrusion 126 will enter the first ring groove 122, the elastic energy of the spring 128 on the telescopic rod 121 will relatively decrease, and the extrusion force of the pressing plate 125 on the zeolite 117 in the sieve plate 103 will decrease, thereby avoiding the zeolite 117 in the sieve plate 103 from being easily broken due to long-term high extrusion force. The gas will pass through the zeolite 117 in the sieve plate 103 again after rotating one round around the connecting cylinder 109, at this time, the impact force generated by the gas flow when passing through multiple sieve plates 103 is reduced, and the zeolite 117 subjected to the reduced extrusion force will not be subjected to a large impact. When the zeolite 117 subjected to a large impact is abraded and generates a large gap, the pressing plate 125 in the sieve plate 103 will make the zeolite 117 close to each other to reduce the gap and improve the purification effect.

[0050] The upper surface of the first ring groove 122 is a spiral inclined surface, after the protrusion 126 on the telescopic rod 121 enters the first ring groove 122 through the through groove 123, the telescopic rod 121 is in the longest length, with the rotation of the positioning column 120, the protrusion 126 in the first ring groove 122 will gradually drive the telescopic rod 121 to contract, until the protrusion 126 comes to the position of the through groove 123 again, and the length of the telescopic rod 121 returns to the longest state; when the first gas inlet 104 switches in the multiple chambers in the lowermost layer, the zeolite 117 in the sieve plate 103 corresponding to the chamber close to the first gas inlet 104 in the direction of the gas flow still retains a certain extrusion force, thereby reducing the gap caused by the abrasion of the zeolite 117 due to the impact of the strong gas flow.

[0051] In the embodiment, the reset member includes an electromagnetic ring 127 and magnetic plates, the electromagnetic ring 127 is arranged on the positioning column 120 and located below the second ring groove 124, and the magnetic plates are provided in plurality and each arranged on a telescopic rod 121; the electromagnetic ring 127 can attract the magnetic plates to be close to each other after generating magnetism.

[0052] Specifically, each magnetic plate is arranged on a protrusion 126 and located directly above the electromagnetic ring 127, after the electromagnetic ring 127 generates magnetism after being electrified, the protrusion 126 is subjected to an attractive force through the magnetic plate, so that the end of the telescopic rod 121 away from the sieve plate 103 has a tendency to compress the spring 128, at this time, the protrusion 126 in the first ring groove 122 will slide into the second ring groove 124 when passing through the through groove 123, so that the telescopic rod 121 returns to the initial state.

[0053] In the embodiment, the monitoring mechanism comprises a first sensor and a second sensor, the first sensor is located in the chamber communicating with the gas outlet 105 and monitors the impurity concentration in the exhaust gas, and the second sensor is located in one of the chambers, and there are at least one chamber between the two chambers where the first sensor and the second sensor are located. The rotating disc 102 stops rotating after the second sensor monitors that the impurity concentration in the chamber exceeds the preset value.

[0054] Specifically, the gas in the adsorption tank 101 flows through the chambers where the second sensor and the first sensor are located in turn, and there are three chambers between the second sensor and the first sensor. With the rotation of the rotating disc 102, the number of chambers through which the gas flows decreases, the area of the sieve plate 103 capable of purifying the gas decreases, and the position of the last chamber in which the gas is purified shifts backward. If the second sensor monitors that the impurity concentration in the chamber where it is located exceeds the preset value, the rotating disc 102 stops rotating, i.e., the area of the sieve plate 103 capable of purifying the gas no longer decreases, thereby improving the utilization rate of the sieve plate 103. If the first sensor monitors that the impurity concentration in the chamber where it is located exceeds the preset value, it indicates that all the sieve plates 103 in the adsorption tank 101 are invalid and need to be replaced.

[0055] In the embodiment, the high-efficiency gas flow distribution device for the oxygen production system further comprises an air compressor 200, a purifier 201, a pressure tank 202, and a collection tank 203. The air compressor 200, the purifier 201, and the pressure tank 202 are arranged in sequence and communicate with each other. The pressure tank 202 communicates with the adsorption tank 101 and is used to introduce gas into the adsorption tank 101. The adsorption tank 101 communicates with the collection tank 203.

[0056] Specifically, the air compressor 200, the purifier 201, and the pressure tank 202 are all existing technologies, and thus will not be described in detail. The adsorption tank 101 is provided with a second gas inlet 108 located below the first gas inlet 104 and communicating with the first gas inlet 104. The pressure tank 202 is connected to the second gas inlet 108 by a pipeline and introduces gas into the adsorption tank 101. The gas enters the chamber through the first gas inlet 104. The adsorption tank 101 and the collection tank 203 are also connected by a pipeline. There are two adsorption tanks 101, and the two adsorption tanks 101 are used alternately.

[0057] When one of the adsorption tanks 101 is saturated, the pressure tank 202 will deliver gas into the other adsorption tank 101. The saturated adsorption tank 101 will be regenerated by reducing the pressure in the tank to desorb the zeolite 117, so as to be recycled.

[0058] The working principle of the high-efficiency gas flow distribution device for the oxygen production system provided in the above embodiment is as follows:

[0059] Firstly, the air compressor 200, the purifier 201 and the pressure tank 202 are used to pretreat the gas. The treated gas is transported into an adsorption tank 101 under the action of the pressure tank 202. The gas entering the adsorption tank 101 flows into a chamber communicating with the first gas inlet 104. Under the action of the turning plate 111 in the chamber, the gas can only flow in one direction. The gas in the chamber passes through the corresponding sieve plate 103 and is purified by the zeolite 117 in the sieve plate 103, and then pushes the turning plate 111 in the next chamber. The turning plate 111 in the next chamber rotates, thereby the two adjacent chambers are communicated, and the gas can flow.

[0060] The gas passes through the sieve plate 103 once and is purified once every time it passes through a chamber. After passing through the sieve plate 103, the gas is mixed in the next chamber, which improves the uniformity when passing through the sieve plate 103 next time and can be better purified. As the gas passes through one chamber after another, the gas gradually approaches the chamber provided with the second sensor and the first sensor. The qualified gas is discharged from the gas outlet 105 into the collection tank 203 after being monitored by the second sensor and the first sensor.

[0061] When the gas is introduced for a preset time, the motor 113 is started and drives the rotating disc 102 to rotate by a certain angle, so that the first gas inlet 104 on the rotating disc 102 communicates with the next chamber. At this time, the pressure in the chamber directly connected with the first gas inlet 104 increases, and the turning plate 111 in the chamber abuts against the turning plate 111 in the next chamber. The chamber no longer communicates with the previous chamber, and the gas starts from the chamber and approaches the gas outlet 105. While the rotating disc 102 rotates, the positioning column 120 is driven to rotate by the connecting rod 116. The positioning column 120 rotates relative to the telescopic rod 121, and the position of the through slot 123 on the positioning column 120 changes accordingly. The through slot 123 also moves into the next chamber. When the through slot 123 moves to the top of the sieve plate 103 between the two chambers, the telescopic rod 121 corresponding to the sieve plate 103 is elongated under the action of the spring 128. The protrusion 126 on the telescopic rod 121 slides from the second ring groove 124 to the first ring groove 122 through the through slot 123, the compression amount of the spring 128 decreases, the pressure generated by the pressure plate 125 on the zeolite 117 decreases, and the gas entering from the first gas inlet 104 enters the upper chamber after being buffered by the sieve plate 103 corresponding to the lowermost other chamber. At this time, the impact force of the gas on the sieve plate 103 is low, and the zeolite 117 in the sieve plate 103 does not need to be extruded too much to avoid accelerating the fragmentation of the zeolite 117 due to long-term excessive extrusion force.

[0062] With the rotation of the rotating disc 102, the positioning column 120 rotates, and the telescopic rod 121 passing through the slot 123 enters the first ring slot 122 under the action of the corresponding spring 128. The rotation of the rotating disc 102 makes the first air inlet 104 pass through the lowermost layer of the plurality of chambers in turn, and finally stays in the chamber communicating with the upper layer chamber; the first air inlet 104 passes through a chamber every time, and the zeolite 117 in the sieve plate 103 behind the first air inlet 104 in the chamber is subjected to a decreasing extrusion force, and then the zeolite 117 is subjected to an increasing extrusion force with the rotation of the positioning column 120. So as to cope with the gradually increasing airflow.

[0063] When the second sensor detects that the concentration of impurities in the gas in the corresponding chamber exceeds the preset value, it indicates that the gas has not been sufficiently purified before, and the rotating disc 102 will no longer rotate to improve the effect of the gas in the chamber where the first sensor is located after purification. If the first sensor monitors that the concentration of impurities in the gas in the chamber where it is located exceeds the preset value, the adsorption tank 101 is in a saturated purification state, and the adsorption tank 101 needs to be replaced for continuous purification.

[0064] The purified gas is collected into the collection tank 203.

[0065] The application also provides a use method of the high-efficiency airflow distribution device for the oxygen production system, comprising the following steps:

[0066] S1, air is introduced into the adsorption tank 101; the gas is pretreated by the air compressor 200, the purifier 201 and the pressure tank 202, and then introduced into the adsorption tank 101 through the pipeline.

[0067] S2, the gas enters one of the chambers, passes through the sieve plate 103 and flows into the next chamber; the gas entering the adsorption tank 101 enters one of the chambers in the lowermost layer from the first air inlet 104, then passes through the corresponding sieve plate 103 and pushes the flap 111 in the next chamber into the next chamber, and the gas passes through the zeolite 117 when passing through the sieve plate 103, and the zeolite 117 adsorbs other impurity gases in the gas except oxygen.

[0068] S3, the monitoring mechanism detects the concentration of impurities in the gas near the gas outlet 105, and controls the rotation of the rotating disc 102 according to the concentration of impurities; the first sensor and the second sensor respectively monitor the concentration of impurities in the gas in the chamber; when the data measured by the first sensor exceeds the preset value, it indicates that the adsorption capacity of the adsorption tank 101 is saturated, and another adsorption tank 101 needs to be switched to work. When the data measured by the second sensor exceeds the preset value, it indicates that the corresponding sieve plate 103 in the chamber before cannot completely purify the gas, and the rotating disc 102 no longer rotates to reduce the number of chambers capable of purifying the gas.

[0069] S4, when the monitoring mechanism is normal, the turntable 102 rotates into the next chamber every preset time until it rotates one circle along the circumferential direction. When the data measured by the first sensor and the second sensor is normal, the turntable 102 rotates once every preset time under the driving of the motor 113, so that the first air inlet 104 is communicated with the next chamber, and the purification degree of the zeolite 117 in the corresponding sieve plate 103 in the previous chamber is close to the saturation state, which effectively improves the purification efficiency.

[0070] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0071] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A high-efficiency airflow distribution device for an oxygen generation system, characterized in that, include: The system comprises an adsorption tank, a rotating disc, a monitoring mechanism, and a one-way mechanism. The adsorption tank is vertically positioned, and the rotating disc is coaxial with the adsorption tank and rotates around its own axis within the adsorption tank. The adsorption tank contains multiple chambers located above the rotating disc and arranged spirally upwards around the axis of the adsorption tank, with the upward rotation direction of the chambers consistent with the rotation direction of the rotating disc. A sieve plate is positioned between adjacent chambers in the circumferential direction of the adsorption tank to allow gas to pass through and purify it. The rotating disc has a first air inlet, which communicates vertically with the chamber adjacent to the rotating disc. The one-way mechanism is located on the sieve plate within the chamber adjacent to the rotating disc and controls the flow of gas within that chamber along the spiral direction of the multiple chambers. The adsorption tank has an outlet for discharging the purified gas from the chambers. The monitoring mechanism monitors the concentration of impurities in the purified gas, and the one-way mechanism controls the flow direction of the gas in the chamber connected to the first air inlet, ensuring the gas flows spirally upwards.

2. The high-efficiency airflow distribution device for an oxygen generation system according to claim 1, characterized in that, There are multiple sieve plates arranged along the circumferential direction of the adsorption tank. A sealing plate is provided between two adjacent sieve plates. There are multiple chambers in the vertical direction between two adjacent sieve plates, and these chambers are arranged vertically. A partition is provided between two adjacent chambers arranged vertically, and the partitions extend upward in a spiral shape close to the sealing plate.

3. The high-efficiency airflow distribution device for an oxygen generation system according to claim 2, characterized in that, The number of one-way mechanisms is the same as the number of sieve plates. Each one-way mechanism includes a support, a flap, and a coil spring. Assuming the rotation direction of the turntable is forward, the support is set on the sieve plate and located on the front side of the sieve plate. The support is located in a chamber adjacent to the turntable. The flap is rotatably set on the support. The flap can rotate and abut against the support. After abutting, it separates two adjacent sieve plates in the chamber. The coil spring is set on the support and connects the flap and the support, so that the flap always tends to move closer to the support.

4. The high-efficiency airflow distribution device for an oxygen generation system according to claim 3, characterized in that, The support frame is equipped with a filter screen, which is located between the corresponding sieve plate and the flap plate and is in contact with the flap plate.

5. The high-efficiency airflow distribution device for an oxygen generation system according to claim 1, characterized in that, The sieve plate has a cavity filled with zeolite, and the adsorption tank is equipped with a pressure regulating mechanism to control the extrusion pressure between the zeolite in the sieve plate.

6. A high-efficiency airflow distribution device for an oxygen generation system according to claim 5, characterized in that, The pressure regulating mechanism includes a positioning column, a telescopic rod, and a reset component. The positioning column is rotatably mounted on the adsorption tank and located above multiple sieve plates. A first annular groove, a through groove, and a second annular groove are vertically arranged on the circumference of the positioning column. The through groove connects the first and second annular grooves. The through groove and the first air inlet are located between two identical sieve plates, with the through groove located behind the first air inlet. Multiple telescopic rods are provided, all vertically arranged around the positioning column. The lower end of each telescopic rod slides within a cavity in one of the sieve plates and abuts against the zeolite. The upper end of the telescopic rod slides within either the first or second annular groove. The telescopic rod always has a tendency to extend, and its upper end switches between the first and second annular grooves via the through groove. Initially, one end of the telescopic rod is located in the second annular groove. The reset component is used to drive the telescopic rod to reset.

7. A high-efficiency airflow distribution device for an oxygen generation system according to claim 6, characterized in that, The reset component includes an electromagnetic ring and a magnetic plate. The electromagnetic ring is disposed on the positioning post and located below the second annular groove. Multiple magnetic plates are provided, and each magnetic plate is disposed on a telescopic rod. Once the electromagnetic ring generates magnetism, it can attract the magnetic plate.

8. A high-efficiency airflow distribution device for an oxygen generation system according to claim 1, characterized in that, The monitoring mechanism includes a first sensor and a second sensor. The first sensor is located in a chamber connected to the gas outlet and monitors the concentration of impurities in the exhaust gas. The second sensor is located in one of the chambers. There is at least one chamber between the two chambers where the first sensor and the second sensor are located. The turntable stops rotating after the second sensor detects that the concentration of gas impurities in the chamber exceeds a preset value.

9. A high-efficiency airflow distribution device for an oxygen generation system according to claim 1, characterized in that, It also includes an air compressor, a purifier, a pressure tank, and a collection tank. The air compressor, purifier, and pressure tank are arranged in sequence and connected. The pressure tank and the adsorption tank are connected to each other and used to introduce gas into the adsorption tank. The adsorption tank and the collection tank are connected to each other.

10. A method of using a high-efficiency airflow distribution device for an oxygen generation system, comprising the high-efficiency airflow distribution device for an oxygen generation system as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1. Introduce air into the adsorption tank; S2. After the gas enters one of the chambers, it passes through the sieve plate and flows into the next chamber. S3. The monitoring agency detects the concentration of impurities in the gas near the outlet and controls the rotation of the turntable according to the concentration of impurities. S4. When there is no abnormality in the monitoring mechanism, the turntable rotates to the next chamber every preset time until it rotates one full revolution in its circumferential direction.

Images