CN220834821U

CN220834821U - High-efficient six adsorption tower oxygenerator

Info

Publication number: CN220834821U
Application number: CN202322554980.7U
Authority: CN
Inventors: 呼延军; 赵开利; 冯洋; 赵佐
Original assignee: Tianjin Rimalandun Technology Co ltd
Current assignee: Tianjin Rimalandun Technology Co ltd
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2024-04-26
Anticipated expiration: 2033-09-19

Abstract

The utility model relates to high-efficiency six-adsorption tower oxygen production equipment; the multi-channel rotary distribution valve comprises a base, a fixed valve, a rotary valve, a bearing cover, a connecting shaft and a rotary valve, wherein the connecting shaft is connected with a rotating mechanism, and an air inlet and a nitrogen outlet are arranged on an enclosure; the fixed valve is provided with a fixed valve air hole, an oxygen guide hole, a fixed valve oxygen discharge hole, a fixed valve air port and an oxygen inlet, and the side wall of the fixed valve is provided with an oxygen collecting port; the rotary valve is provided with a rotary valve air hole, a nitrogen exhaust air hole, a rotary valve total air inlet hole, a rotary valve oxygen inlet hole and a rotary valve oxygen exhaust hole; the oxygen outlet of the adsorption tower is communicated with the oxygen collecting port, the air inlet and outlet of the adsorption tower is communicated with the fixed valve port, and the air inlet is communicated with the air compressor; the obtained high-efficiency six-adsorption tower oxygen generating equipment has small volume, the oxygen yield reaches 58-65%, the oxygen concentration is more than 93%, and the high-efficiency six-adsorption tower oxygen generating equipment is suitable for being used on the plateau.

Description

High-efficient six adsorption tower oxygenerator

Technical Field

The utility model relates to the technical field of oxygen production equipment, in particular to high-efficiency six-adsorption-tower oxygen production equipment.

Background

The medical oxygenerator mainly comprises a two-bed structure oxygenerator, a four-bed structure oxygenerator and a six-bed structure oxygenerator, wherein the oxygen yield of the two-bed structure oxygenerator is generally about 25-35%, and the oxygen yield of the four-bed oxygen generator can reach 45-50%; the oxygen generator with the six-bed structure generally adopts electromagnetic valves to control the oxygen production flow due to the increase of the adsorption towers, but the electromagnetic valves are too many in number, difficult to assemble and have a large number of fault points, so that the yield of oxygen is often influenced. In addition, when the oxygen concentration in one of the adsorption towers is lower than the standard requirement in the operation of the oxygen generator with the six-bed structure, the oxygen yield can be reduced, the whole machine is required to stop moving, the oxygen is supplemented in the adsorption towers, the working procedure is complex, and the working efficiency is low.

Therefore, in order to solve the problems, the utility model needs to provide an efficient oxygen generating device with six adsorption towers.

Disclosure of utility model

The utility model aims to provide high-efficiency six-adsorption-tower oxygen generating equipment, which solves the technical problems that the existing six-bed-structure oxygen generator is controlled by electromagnetic valves due to the increase of adsorption towers, but the number of electromagnetic valves is too large, the assembly is difficult, the failure points are too many, the oxygen yield is often influenced, and the six-bed-structure oxygen generator is in operation, when the oxygen concentration in one adsorption tower is lower than the standard requirement, the oxygen yield is reduced, the whole machine is required to stop moving, oxygen supplementation is carried out in the adsorption tower, the process is complex and the working efficiency is low.

The utility model provides high-efficiency six-adsorption tower oxygen generating equipment, which comprises an oxygen storage tank, a multi-channel rotary distribution valve and six adsorption towers, wherein each adsorption tower is provided with an adsorption tower oxygen outlet communicated with the inside of the adsorption tower and an adsorption tower air inlet and outlet for air inlet or nitrogen outlet from bottom to top,

The multichannel rotary distribution valve comprises a first base, a fixed valve, a rotary valve, a bearing and a bearing cover which are concentrically arranged from bottom to top, wherein a connecting shaft penetrates through the first base, one end of the connecting shaft penetrates through the fixed valve upwards to be connected with the rotary valve, the other end of the connecting shaft penetrates through the first base downwards to be connected with a rotating mechanism, an enclosure sleeved with the rotary valve, the bearing and the bearing cover is detachably connected with the fixed valve, and an air inlet hole and a nitrogen gas outlet hole are formed in the enclosure;

The center of the fixed valve is provided with a fixed valve shaft perforation for penetrating the connecting shaft, the side wall of the fixed valve is circumferentially provided with fixed valve air ports which are communicated with the air inlet and the air outlet of each adsorption tower in a one-to-one correspondence manner, the upper end surface of the fixed valve is circumferentially provided with fixed valve air holes which are communicated with the air ports of each fixed valve in a one-to-one correspondence manner at intervals, the upper end surface of the fixed valve is circumferentially provided with a plurality of groups of fixed valve oxygen discharge holes at intervals, and the side wall of the fixed valve is also provided with oxygen collection ports which are communicated with the fixed valve oxygen discharge holes;

The bottom of the rotary valve is provided with a clamping groove connected with the connecting shaft, a plurality of rotary valve air holes for air inlet or nitrogen exhaust are distributed at intervals along the circumferential direction of the clamping groove, the side wall of the rotary valve is provided with a nitrogen exhaust hole, and the upper end surface of the rotary valve is provided with a rotary valve total air inlet hole communicated with the rotary valve air holes; the bottom of the rotary valve is also provided with a rotary valve oxygen inlet hole corresponding to the oxygen guide hole, the bottom of the rotary valve is also provided with a rotary valve oxygen discharge hole corresponding to the fixed valve oxygen discharge hole, and the rotary valve oxygen discharge hole is communicated with the rotary valve oxygen inlet hole through a gas channel positioned in the rotary valve;

The oxygen outlet of each adsorption tower is communicated with the oxygen collecting port through an oxygen collecting pipeline, the air inlet and outlet of each adsorption tower is communicated with the fixed valve air port through an inlet and outlet pipeline, and the air inlet is communicated with the air compressor through a pipeline.

Further, the adsorption tower also comprises a second base, and each adsorption tower is fixed on the second base.

Further, each adsorption tower is filled with a molecular sieve.

Further, six adsorption towers are included.

Further, the bottom of the rotary valve is also provided with oxygen pressure regulating holes at intervals, and each oxygen pressure regulating hole corresponds to the oxygen guide hole of the fixed valve one by one;

The friction plate is arranged between the fixed valve and the rotary valve, the friction plate is provided with friction plate shaft perforations corresponding to the fixed valve shaft perforations, friction plate air holes corresponding to the fixed valve air holes one by one, friction plate oxygen outlet holes corresponding to the fixed valve oxygen guide holes one by one and friction plate oxygen outlet holes corresponding to the fixed valve oxygen outlet holes.

Further, the seal cover comprises a seal ring, the seal head is covered on the seal ring, the seal ring is detachably connected with the fixed valve, the nitrogen gas discharge hole is arranged on the seal ring, and the air inlet hole is arranged on the seal head.

Further, a sealing gasket is arranged between the sealing ring and the sealing head.

Further, a rotary valve compression spring is arranged between the sealing ring and the sealing head.

Further, the rotating mechanism comprises a shaft sleeve sleeved with the connecting shaft, a gear is fixedly connected outside the shaft sleeve, a shifting tooth meshed with the gear tooth for shifting the gear is further included, one end of the shifting tooth is connected with the spring mechanism, the rotating mechanism further comprises a reciprocating plate which is positioned below the gear and sleeved on the shaft sleeve, a pushing rod is further arranged on the reciprocating plate, and the pushing rod is connected with a telescopic rod of the air cylinder through a connecting piece.

Further, the spring mechanism comprises a shell fixed on the reciprocating plate, a moving block is arranged in the shell, two opposite sides of the moving block are respectively connected with the poking teeth and the moving rod, one end of the moving rod penetrates out of the shell, and a moving rod compression spring is sleeved on the moving rod; six fixed valve air holes and six groups of oxygen guide holes are arranged on the fixed valve; the first base comprises a supporting plate, a through hole is formed in the center of the supporting plate, and a supporting leg is arranged at the lower end of the supporting plate; still include the bottom plate, base one and slewing mechanism are all fixed in on the bottom plate.

Compared with the prior art, the high-efficiency six-adsorption-tower oxygen generating equipment provided by the utility model has the following steps:

1. The utility model has the structural design of high-efficiency six-adsorption-tower oxygen production equipment, and the six adsorption towers can be communicated by adopting one mechanical valve, so that compared with the control of the oxygen production flow by adopting a plurality of electromagnetic valves, the oxygen production equipment has the advantages of simple assembly and fewer faults, can effectively ensure the oxygen production yield of the adsorption towers, and has the oxygen yield of 58-65% and the oxygen concentration of more than 93%. The six adsorption towers are used for preparing oxygen, the volume is small, the weight is light, the occupied area is small, and the device is very suitable for being used on the plateau.

2. The utility model discloses a structural design of high-efficiency six-adsorption-tower oxygen generating equipment, wherein at least two oxygen pressure regulating holes are arranged at intervals at the bottom of a rotary valve, and each oxygen pressure regulating hole corresponds to a fixed valve oxygen guide hole one by one, so that the mutual injection of oxygen into six adsorption towers can be realized, the oxygen concentration in the adsorption towers is ensured to reach more than 90%, the normal operation of the adsorption towers is ensured, and the oxygen yield is improved. The oxygen supplementing is carried out on the adsorption tower without stopping, the working procedure is simple, and the working efficiency is high.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram (perspective view) of an oxygen plant with a six-adsorption tower according to the present utility model;

FIG. 2 is a schematic diagram (perspective view) of an oxygen plant with six efficient adsorption towers according to the present utility model;

FIG. 3 is a schematic view (perspective view) of a rotary distribution valve for channels according to the present utility model;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a schematic view (perspective view) of the fixed valve according to the present utility model;

FIG. 6 is a schematic view (perspective view) of a rotary valve according to the present utility model;

FIG. 7 is an exploded view of the fixed valve, rotary valve and friction plate of the present utility model;

FIG. 8 is a schematic view (perspective view) of a first base of the present utility model;

Fig. 9 is a schematic structural view (perspective view) of the rotating mechanism according to the present utility model;

Fig. 10 is a schematic view (transverse cross-sectional view) of the spring mechanism according to the present utility model.

Reference numerals illustrate:

1. A first base; 101. a support plate; 102. a through hole; 103. a support leg; 2. a fixed valve; 21. perforating the fixed valve shaft; 22. a fixed valve air hole; 23. an oxygen guide hole; 24. a fixed valve air port; 25. an oxygen inlet; 26. an oxygen collection port; 27. a valve-fixed oxygen discharge hole; 3. a friction plate; 31. perforating a friction plate shaft; 32. air holes of the friction plate; 33. an oxygen outlet hole of the friction plate; 34. an oxygen discharge hole of the friction plate; 4. a rotary valve; 41. a clamping groove; 42. a rotary valve air hole; 43. a rotary valve total air inlet; 44. nitrogen vent holes; 45. oxygen inlet of rotary valve; 46. a rotary valve oxygen discharge hole; 47. an oxygen pressure regulating hole; 5. a bearing; 6. a bearing cap; 7. a rotating mechanism; 71. a shaft sleeve; 72. a gear; 73. tooth shifting; 74. a spring mechanism; 741. a housing; 742. a moving block; 743. a moving rod; 744. a movable rod compression spring; 75. a shuttle plate; 76. a push rod; 77. a cylinder; 78. a connecting piece; 8. an enclosure; 81. sealing rings; 82. a seal head; 801. an air inlet; 802. a nitrogen gas discharge hole; 9. a connecting shaft; 10. a sealing gasket; 11. a rotary valve compression spring; 12. a bottom plate; 13. an adsorption tower; 14. an oxygen storage tank; 15. an oxygen collection line; 16. a pipeline inlet and outlet; 17. and a second base.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, 2, 3, 4, 5, 6 and 7, the present embodiment provides a high-efficiency six-adsorption-tower oxygen generating apparatus, which includes an oxygen storage tank 14, a multi-channel rotary distribution valve and six adsorption towers 13, each adsorption tower 13 is provided with an adsorption tower oxygen outlet communicated with the inside of the adsorption tower 13 and an adsorption tower air inlet and outlet for air inlet or nitrogen outlet from bottom to top; the multichannel rotary distribution valve comprises a first base 1, a fixed valve 2, a rotary valve 4, a bearing 5 and a bearing cover 6 which are concentrically arranged from bottom to top, wherein a connecting shaft 9 is arranged on the first base 1 in a penetrating manner, one end of the connecting shaft 9 upwards penetrates through the fixed valve 2 and is connected with the rotary valve 4, the other end of the connecting shaft 9 downwards penetrates out of the first base 1 and is connected with a rotating mechanism 7, the multichannel rotary distribution valve also comprises a cover 8 which is sleeved with the rotary valve 4, the bearing 5 and the bearing cover 6, the cover 8 is detachably connected with the fixed valve 2, and an air inlet 801 and a nitrogen outlet 802 are formed in the cover 8; the center of the fixed valve 2 is provided with fixed valve shaft perforations 21 for penetrating the connecting shaft 9, the side wall of the fixed valve 2 is circumferentially provided with fixed valve air ports 24 which are communicated with the air inlet and outlet ports of each adsorption tower in a one-to-one correspondence manner, oxygen inlets 25 which are communicated with the oxygen outlets of each adsorption tower in a one-to-one correspondence manner, the upper end surface of the fixed valve 2 is circumferentially provided with fixed valve air holes 22 which are communicated with the fixed valve air ports 24 in a one-to-one correspondence manner, the oxygen guide holes 23 which are communicated with the oxygen inlets 25 are circumferentially spaced, the upper end surface of the fixed valve 2 is circumferentially provided with a plurality of groups of fixed valve oxygen outlet holes 27 in a spaced manner, and the side wall of the fixed valve 2 is also provided with oxygen collecting ports 26 which are communicated with the fixed valve oxygen outlet holes 27; the bottom of the rotary valve 4 is provided with a clamping groove 41 connected with the connecting shaft 9, a plurality of rotary valve air holes 42 for air inlet or nitrogen discharge are distributed at intervals along the circumferential direction of the clamping groove 41 at the bottom of the rotary valve 4, the side wall of the rotary valve 4 is provided with a nitrogen discharge air hole 44, and the upper end surface of the rotary valve 4 is provided with a rotary valve total air inlet hole 43 communicated with the rotary valve air hole 42; the bottom of the rotary valve 4 is also provided with a rotary valve oxygen inlet hole 45 corresponding to the oxygen guide hole 23, the bottom of the rotary valve 4 is also provided with a rotary valve oxygen outlet hole 46 corresponding to the fixed valve oxygen outlet hole 27, and the rotary valve oxygen outlet hole 46 is communicated with the rotary valve oxygen inlet hole 45 through a gas channel positioned in the rotary valve; the oxygen outlet of each adsorption tower is communicated with an oxygen collecting port 26 through an oxygen collecting pipeline 15, the air inlet and outlet of each adsorption tower 13 is communicated with a fixed valve air port 24 through an inlet and outlet pipeline 16, and an air inlet 801 is communicated with an air compressor through a pipeline.

The utility model has the structural design of high-efficiency six-adsorption-tower oxygen production equipment, and the six adsorption towers can be communicated by adopting one mechanical valve, so that compared with the control of the oxygen production flow by adopting a plurality of electromagnetic valves, the oxygen production equipment has the advantages of simple assembly and fewer faults, can effectively ensure the oxygen production yield of the adsorption towers, and has the oxygen yield of 58-65% and the oxygen concentration of more than 93%. The six adsorption towers are used for preparing oxygen, the volume is small, the weight is light, the occupied area is small, and the device is very suitable for being used on the plateau.

The working process comprises the following steps:

The air inlet and outlet ports of the adsorption towers of the six adsorption towers 13 are communicated with the fixed valve air ports of the multi-channel rotary distribution valve through an inlet and outlet pipeline 16, and the oxygen outlets of the adsorption towers of the six adsorption towers 13 are communicated with the oxygen inlet through an oxygen collecting pipeline 15;

The air compressor sends air into the multi-channel rotary distribution valve, the air enters the multi-channel rotary distribution valve from an air inlet 801 of the multi-channel distribution valve, enters the multi-channel rotary distribution valve from an air inlet 43 of the rotary valve, sequentially passes through an air inlet 42 of the rotary valve and an air outlet 22 of the fixed valve, and is output from an air outlet 24 of the fixed valve, enters corresponding adsorption towers, after being treated by the adsorption towers 13, oxygen is separated in the adsorption towers 13, is discharged from an oxygen outlet of the adsorption towers 13, enters the multi-channel distribution valve through an oxygen collecting pipeline 15 and an oxygen inlet 25, passes through an air inlet 23 of the fixed valve, an oxygen inlet 45 of the rotary valve, an oxygen outlet 46 of the rotary valve and an oxygen outlet 27, and is conveyed out from an oxygen collecting port 26 into an oxygen storage tank 14;

When the adsorption tower needs to discharge nitrogen, the air is stopped from being conveyed into the adsorption tower, the nitrogen at the bottom of the adsorption tower 13 can enter the fixed valve 2 from the fixed valve air port 24, and is discharged from the nitrogen discharge hole 802 through the fixed valve air hole 22, the rotary valve air hole 42 and the nitrogen discharge hole 44.

After one adsorption tower works, the rotary valve is mechanically rotated to recover oxygen from the next adsorption tower.

As shown in fig. 1 and 2, the present embodiment further includes a second base 17, and each adsorption tower 13 is fixed to the second base 17.

The adsorption towers 13 of the present utility model are filled with molecular sieves.

As shown in fig. 5 and 6, the bottom of the rotary valve 4 of the present embodiment is further provided with at least two oxygen pressure regulating holes 47 arranged at intervals, and each oxygen pressure regulating hole 47 corresponds to a fixed valve oxygen guide hole 23 one by one.

According to the utility model, through the design that the bottom of the rotary valve 4 is also provided with at least two oxygen pressure regulating holes 47 which are arranged at intervals, and each oxygen pressure regulating hole 47 corresponds to the fixed valve oxygen guide hole 23 one by one, the mutual oxygen injection of six adsorption towers can be realized, and the oxygen concentration in the adsorption towers is ensured to reach more than 90%, so that the normal operation of the adsorption towers is ensured, and the oxygen yield is improved. The oxygen supplementing is carried out on the adsorption tower without stopping, the working procedure is simple, and the working efficiency is high.

Specifically, for example, when the oxygen concentration in the first adsorption tower is lower than 90%, the rotary valve 4 rotates, so that the two oxygen pressure adjusting holes 47 are in one-to-one correspondence with the two fixed valve oxygen guide holes 23, oxygen in the second adsorption tower with high concentration oxygen enters from the corresponding oxygen inlet 25, enters the corresponding oxygen pressure adjusting hole 47 through the fixed valve oxygen guide hole 23, enters the other fixed valve oxygen guide hole 23 from the other oxygen pressure adjusting hole 47, enters the first adsorption tower through the corresponding oxygen inlet 25, and supplements oxygen to the interior of the first adsorption tower, so as to increase the oxygen concentration in the first adsorption tower.

As shown in fig. 5, a friction plate 3 is provided between the fixed valve 2 and the rotary valve 4 in the present embodiment, a friction plate shaft hole 31 corresponding to the fixed valve shaft hole 21 is provided on the friction plate 3, a friction plate air hole 32 corresponding to the fixed valve air hole 22 one by one, a friction plate oxygen outlet hole 33 corresponding to the fixed valve oxygen guide hole 23 one by one, and a friction plate oxygen outlet hole 34 corresponding to the fixed valve oxygen outlet hole 27 are provided on the friction plate 3; the design of friction disc can protect fixed valve 2, has sealed effect simultaneously, improves the collection rate of oxygen.

As shown in fig. 3 and 4, the enclosure 8 of the present embodiment includes a seal ring 81, a seal head 82 covering the seal ring 81, the seal ring 81 and the fixed valve 2 are detachably connected, a nitrogen gas discharge hole 802 is provided on the seal ring 81, and an air inlet hole 801 is provided on the seal head 82.

The sealing cover 8 comprises the sealing ring 81, the sealing head 82 is covered on the sealing ring 81, the sealing ring 81 is detachably connected with the fixed valve 2, the nitrogen gas discharge hole 802 is formed in the sealing ring 81, and the air inlet hole 801 is formed in the sealing head 82, so that the sealing cover is convenient to install and overhaul, and the working efficiency is improved.

As shown in fig. 4, a sealing gasket 10 is arranged between the sealing ring 81 and the sealing head 82 in the embodiment, so that the sealing effect is achieved, and the collection rate of oxygen is ensured.

As shown in fig. 4, a rotary valve compression spring 11 is arranged between the sealing ring 81 and the sealing head 82 to compress the rotary valve, so that the tightness between the fixed valve and the rotary valve is ensured.

As shown in fig. 9 and 10, the rotating mechanism 7 of the embodiment comprises a shaft sleeve 71 sleeved with a connecting shaft 9, a gear 72 is fixedly connected outside the shaft sleeve 71, a shifting tooth 73 for shifting the gear 72 and meshed with the gear 72 is further included, one end of the shifting tooth 73 is connected with a spring mechanism 74, a reciprocating plate 75 sleeved on the shaft sleeve 71 and positioned below the gear 72 is further included, a pushing rod 76 is further arranged on the reciprocating plate 75, and the pushing rod 76 is connected with a telescopic rod of an air cylinder 77 through a connecting piece 78; the spring mechanism 74 comprises a casing 741 fixed on the reciprocating plate 75, a moving block 742 is arranged in the casing 741, opposite sides of the moving block 742 are respectively connected with the poking teeth 73 and the moving rod 743, one end of the moving rod 743 penetrates out of the casing 741, and a moving rod compression spring 744 is sleeved on the moving rod 743; can realize the automatic rotation of connecting axle 9, need not manual control, the precision is high, saves the manual work simultaneously, work efficiency is high.

Specifically, when the connecting shaft 9 is required to rotate, the telescopic rod of the air cylinder 77 is pushed forward, the push rod 76 drives the reciprocating plate 75 to rotate clockwise for 30 degrees, the poking teeth 73 enter the shell 741 under the pressure action of the teeth of the gear 72, after the gear 72 rotates for 30 degrees, the poking teeth 73 are clamped in tooth grooves of the teeth of the gear 72, and the operation can realize the rotation and accurate control of the connecting shaft 9.

The fixed valve 2 is provided with six fixed valve air holes 22 and six groups of oxygen guide holes 23, so that the fixed valve can be applied to six integrated adsorption towers, and has high working efficiency.

As shown in fig. 8, the first base 1 of the present embodiment includes a support plate 101, a through hole 102 is formed in the center of the support plate 101, and a leg 103 is provided at the lower end of the support plate 101.

As shown in fig. 3, the present embodiment further includes a bottom plate 12, and the first base 1 and the rotating mechanism 7 are fixed on the bottom plate 12.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. An efficient six-adsorption tower oxygen generating device is characterized in that: the device comprises an oxygen storage tank (14), a multi-channel rotary distribution valve and six adsorption towers (13), wherein each adsorption tower (13) is provided with an adsorption tower oxygen outlet communicated with the inside of the adsorption tower (13) and an adsorption tower air inlet and outlet for air inlet or nitrogen outlet from bottom to top;

The multichannel rotary distribution valve comprises a first base (1), a fixed valve (2), a rotary valve (4), a bearing (5) and a bearing cover (6) which are concentrically arranged from bottom to top, wherein a connecting shaft (9) is arranged on the first base (1) in a penetrating manner, one end of the connecting shaft (9) upwards penetrates through the fixed valve (2) and is connected with the rotary valve (4), the other end of the connecting shaft (9) downwards penetrates out of the first base (1) and is connected with a rotary mechanism (7), the multichannel rotary distribution valve also comprises an enclosure (8) which is sleeved with the rotary valve (4), the bearing (5) and the bearing cover (6), the enclosure (8) is detachably connected with the fixed valve (2), and an air inlet hole (801) and a nitrogen gas outlet hole (802) are formed in the enclosure (8);

The center of the fixed valve (2) is provided with fixed valve shaft perforations (21) for penetrating the connecting shaft (9), the side wall of the fixed valve (2) is circumferentially provided with fixed valve air ports (24) which are communicated with the air inlet and outlet ports of each adsorption tower in a one-to-one correspondence manner, the oxygen inlets (25) which are communicated with the oxygen outlets of each adsorption tower in a one-to-one correspondence manner, the upper end surface of the fixed valve (2) is circumferentially provided with fixed valve air holes (22) which are communicated with the fixed valve air ports (24) in a spaced manner, the oxygen guide holes (23) which are communicated with the oxygen inlets (25) in a one-to-one correspondence manner, the upper end surface of the fixed valve (2) is circumferentially provided with a plurality of groups of fixed valve oxygen outlet holes (27) in a spaced manner, and the side wall of the fixed valve (2) is also provided with oxygen collecting ports (26) which are communicated with the fixed valve oxygen outlet holes (27);

The bottom of the rotary valve (4) is provided with a clamping groove (41) connected with the connecting shaft (9), a plurality of rotary valve air holes (42) for air inlet or nitrogen exhaust are distributed at intervals along the circumferential direction of the clamping groove (41) at the bottom of the rotary valve (4), the side wall of the rotary valve (4) is provided with a nitrogen exhaust air hole (44), and the upper end surface of the rotary valve (4) is provided with a rotary valve total air inlet hole (43) communicated with the rotary valve air hole (42); the bottom of the rotary valve (4) is also provided with a rotary valve oxygen inlet hole (45) corresponding to the oxygen guide hole (23), the bottom of the rotary valve (4) is also provided with a rotary valve oxygen outlet hole (46) corresponding to the fixed valve oxygen outlet hole (27), and the rotary valve oxygen outlet hole (46) is communicated with the rotary valve oxygen inlet hole (45) through a gas channel positioned in the rotary valve;

The oxygen outlet of each adsorption tower is communicated with an oxygen collecting opening (26) through an oxygen collecting pipeline (15), the air inlet and outlet of each adsorption tower (13) is communicated with a corresponding fixed valve air port (24) through an inlet and outlet pipeline (16), and the air inlet hole (801) is communicated with an air compressor through a pipeline.

2. The high efficiency six adsorption tower oxygen plant of claim 1 wherein: the adsorption tower also comprises a second base (17), and each adsorption tower (13) is fixed on the second base (17).

3. The high efficiency six adsorption tower oxygen plant of claim 2 wherein: molecular sieves are filled in the adsorption towers (13).

4. A high efficiency six adsorption tower oxygen plant according to claim 3 wherein: the bottom of the rotary valve (4) is also provided with oxygen pressure regulating holes (47) at intervals, and each oxygen pressure regulating hole (47) corresponds to the fixed valve oxygen guide hole (23) one by one;

A friction plate (3) is arranged between the fixed valve (2) and the rotary valve (4), friction plate shaft perforations (31) corresponding to the fixed valve shaft perforations (21) are arranged on the friction plate (3), friction plate air holes (32) corresponding to the fixed valve air holes (22) one by one, friction plate oxygen outlet holes (33) corresponding to the fixed valve oxygen guide holes (23) one by one, and friction plate oxygen outlet holes (34) corresponding to the fixed valve oxygen outlet holes (27) are arranged on the friction plate (3).

5. The high efficiency six adsorption tower oxygen plant of claim 4 wherein: the seal cover (8) comprises a seal ring (81), a seal head (82) which is covered on the seal ring (81), the seal ring (81) is detachably connected with the fixed valve (2), the nitrogen gas discharge hole (802) is arranged on the seal ring (81), and the air inlet hole (801) is arranged on the seal head (82).

6. The high efficiency six adsorption tower oxygen plant of claim 5 wherein: a sealing gasket (10) is arranged between the sealing ring (81) and the sealing head (82).

7. The high efficiency six adsorption tower oxygen plant of claim 6 wherein: a rotary valve compression spring (11) is arranged between the sealing ring (81) and the sealing head (82).

8. The high efficiency six adsorption tower oxygen plant of claim 7 wherein: the rotating mechanism (7) comprises a shaft sleeve (71) sleeved with the connecting shaft (9), a gear (72) is fixedly connected outside the shaft sleeve (71), a poking tooth (73) meshed with the gear (72) is further included, one end of the poking tooth (73) is connected with the spring mechanism (74), the reciprocating plate (75) is sleeved on the shaft sleeve (71) and located below the gear (72), a pushing rod (76) is further arranged on the reciprocating plate (75), and the pushing rod (76) is connected with a telescopic rod of the air cylinder (77) through a connecting piece (78).

9. The high efficiency six adsorption tower oxygen plant of claim 8 wherein: the spring mechanism (74) comprises a shell (741) fixed on the reciprocating plate (75), a moving block (742) is arranged in the shell (741), two opposite sides of the moving block (742) are respectively connected with the shifting teeth (73) and the moving rod (743), one end of the moving rod (743) penetrates out of the shell (741), and a moving rod compression spring (744) is sleeved on the moving rod (743).

10. The high efficiency six adsorption tower oxygen plant of claim 9 wherein: six fixed valve air holes (22) and six groups of oxygen guide holes (23) are arranged on the fixed valve (2); the first base (1) comprises a supporting plate (101), a through hole (102) is formed in the center of the supporting plate (101), and a supporting leg (103) is arranged at the lower end of the supporting plate (101); the device also comprises a bottom plate (12), and the first base (1) and the rotating mechanism (7) are both fixed on the bottom plate (12).