Adsorption type nitrogen making machine for packaging traditional Chinese medicine decoction pieces

By introducing a centrifugal separation component into the adsorption nitrogen generator, and utilizing a multi-layer annular baffle and rotating plate structure, the problem of concentrated compressed air passing through the adsorber is solved, the nitrogen-oxygen separation efficiency is improved, and the production of high-purity nitrogen for packaging Chinese herbal medicine pieces is ensured.

CN223683288UActive Publication Date: 2025-12-19广东汇群中药饮片股份有限公司
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Patent Information

Application Number
CN202522390430.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-11
Publication Date
2025-12-19
Estimated Expiration
2035-11-11

AI Technical Summary

Technical Problem

Existing adsorption-type nitrogen generators have a simple internal structure for the adsorber, with compressed air passing through the center in a concentrated manner. This results in the adsorbent on the inner wall not being fully utilized, thus reducing the nitrogen-oxygen separation efficiency.

Method used

The centrifugal separation component uses a multi-layered annular baffle and rotating plate structure to make compressed air flow around the inner wall of the adsorbent layer, increasing the contact between air and adsorbent. The combined action of the arc-shaped wedge and rotating plate ensures that the air flows tightly against the inner wall, improving oxygen adsorption efficiency.

Benefits of technology

It improves nitrogen purity and separation efficiency, meets the high-purity nitrogen requirements for packaging Chinese herbal medicine pieces, and ensures the shelf life and safety of the pieces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an adsorption type nitrogen making machine for packaging traditional Chinese medicine decoction pieces, which relates to the technical field of nitrogen making machines and comprises a machine room, two adsorbers are arranged in the machine room, the lower ends of the two adsorbers are connected with the same shunt tube in an inserted manner, and adsorbent layers are respectively arranged on the inner walls of the two adsorbers; and the two centrifugal separation assemblies are respectively arranged in the corresponding adsorbers. According to the adsorption type nitrogen making machine for packaging the traditional Chinese medicine decoction pieces, the centrifugal separation assembly is used for enabling compressed air in a multi-layer structure of the centrifugal separation assembly to flow in a surrounding mode along the inner wall of the adsorbent layer under the action of the corresponding arc-shaped wedge blocks and the multiple rotating plates, and meanwhile due to blocking of the multiple rotating plates, the compressed air can be separated from the inner wall of the adsorbent layer. Air can only flow in a surrounding manner by clinging to the inner wall of the adsorbent layer, and under the action, the contact degree of the air and the adsorbent layer is improved, so that the oxygen component in the air is more sufficiently adsorbed by the adsorbent layer, the purity of nitrogen is improved, and the production requirement is ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogen making machine technical field especially relates to a kind of adsorption type nitrogen making machine for traditional Chinese medicine decoction pieces packaging. BACKGROUND

[0002] Traditional Chinese medicine decoction pieces are processed Chinese medicinal materials, which can be directly used for clinical dispensing or preparation production in traditional Chinese medicine. Nitrogen is injected during packaging, mainly to replace the air in the container and reduce the oxygen content, thereby effectively preventing the effective components in the decoction pieces from deteriorating due to oxidation, while inhibiting the growth of microorganisms, prolonging the shelf life of the medicine and ensuring its efficacy and safety. The nitrogen making machine is a device that separates nitrogen from air through physical methods such as pressure swing adsorption (PSA) or membrane separation technology, which can efficiently produce high-purity nitrogen.

[0003] The adsorber in the existing adsorption type nitrogen making machine only has a simple grid and a layer of gasket inside. After compressed air enters, it tends to pass through the path with the smallest central resistance, so that the adsorbent layer on the inner wall of the adsorber cannot fully contact the air, resulting in a decrease in the separation efficiency of nitrogen and oxygen. SUMMARY

[0004] The utility model discloses a kind of adsorption type nitrogen making machines for traditional Chinese medicine decoction pieces packaging, to solve the technical problem that adsorption type nitrogen making machine is due to the simple internal structure of adsorber, only set up grid and gasket, compressed air is concentrated from the center, inner wall adsorbent cannot be fully utilized, thereby reducing the nitrogen-oxygen separation efficiency.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: an adsorption type nitrogen making machine for traditional Chinese medicine decoction pieces packaging, comprising: a warehouse, two adsorbers are arranged inside the warehouse, a same shunt pipe is inserted into the lower end of the two adsorbers, and adsorbent layers are arranged on the inner walls of the two adsorbers, respectively; two centrifugal separation assemblies are arranged in the interiors of the corresponding adsorbers, respectively, and the centrifugal separation assemblies are used to provide annular flow tracks for the compressed air entering the interiors of the adsorbers, so that the compressed air always flows close to the inner walls of the adsorbent layers.

[0006] In one preferred embodiment, the centrifugal separation assembly comprises: a top fixed ring fixedly connected to the inner wall of the adsorbent layer, top layer annular partition plates are fixedly connected to the upper and lower ends of the top fixed ring, respectively; a middle fixed ring fixedly connected to the inner wall of the adsorbent layer, middle layer annular partition plates are fixedly connected to the upper and lower ends of the middle fixed ring, respectively, and the middle fixed ring is located below the top fixed ring; and a bottom fixed ring fixedly connected to the inner wall of the adsorbent layer. Bottom layer annular partition plates are fixedly connected to the upper and lower ends of the bottom fixed ring, respectively, and the bottom fixed ring is located below the middle fixed ring.

[0007] In a preferred embodiment, the centrifugal separation assembly further comprises: an adjusting shaft, one end of the adjusting shaft is equidistantly connected to the inside of the adjusting hole on the opposite side of the two bottom annular partitions through a bearing, the other end of the adjusting shaft respectively passes through the two middle annular partitions and the two top annular partitions, and the outer wall of the adjusting shaft is fixedly provided with a rotating plate, and the rotating plate is located between the two bottom annular partitions, the two middle annular partitions and the two top annular partitions.

[0008] In a preferred embodiment, the centrifugal separation assembly further comprises: a driven gear fixedly connected to the outer wall of the corresponding adjusting shaft between the top annular partition and the middle annular partition; a rotating shaft connected to the rotating hole on the side of the lowermost bottom annular partition through a bearing, the outer wall of one end of the rotating shaft is fixedly connected with a brake gear, and the brake gear is engaged with the driven gear; and an adjusting motor fixedly connected to the lower side of the lowermost bottom annular partition, the drive end of the adjusting motor is connected to the other end of the rotating shaft through a shaft coupling.

[0009] In a preferred embodiment, the centrifugal separation assembly further comprises: an arc-shaped wedge, a plurality of arc-shaped wedges are arranged in the two bottom annular partitions, the two middle annular partitions and the two top annular partitions; an air inlet pipe inserted into the inner wall of the bottom fixed ring, the air outlet end of the air inlet pipe is located in the two bottom annular partitions and close to the arc surface of the corresponding arc-shaped wedge, and the air inlet end of the air inlet pipe is connected with the shunt pipe; and a gas conveying groove pipe, two gas conveying groove pipes are respectively inserted into the middle annular partition and the top annular partition, the air inlet end of the gas conveying groove pipe located in the middle annular partition is inserted into the two bottom annular partitions and communicated, the air inlet end of the gas conveying groove pipe located in the top annular partition is inserted into the two middle annular partitions and communicated, and the air outlet groove holes of the two gas conveying groove pipes are respectively close to the arc surface of the corresponding arc-shaped wedge.

[0010] In a preferred embodiment, one end of the air pipe is inserted into one side of the machine warehouse, the other end of the air pipe is communicated with the shunt pipe, the upper side of the two adsorbers is provided with the same pressure equalizing delivery pipe, the inside of the machine warehouse is respectively provided with a gas storage tank and a nitrogen measurement instrument, one end of the waste oxygen discharge pipe is arranged and communicated on the upper side of the two adsorbers, the other end of the two waste oxygen discharge pipes respectively passes through the inner wall of the machine warehouse and is located outside, the other end of the pressure equalizing delivery pipe is communicated with the gas storage tank, one end of the nitrogen conveying pipe is arranged on the upper side of the gas storage tank, the other end of the nitrogen conveying pipe is inserted into the inside of the nitrogen measurement instrument, and the nitrogen measurement instrument is provided with a nitrogen outlet pipe on one side.

[0011] From the above, the utility model provides a kind of adsorption type nitrogen generator for traditional chinese medicine decoction pieces packaging has using centrifugal separation component to be located in its multilayer structure inside compressed air under the action of corresponding arc wedge and multiple rotating plate, compressed air circulates along adsorbent layer inner wall, simultaneously, air can only stick adsorbent layer inner wall circulation under the blocking of multiple rotating plate, under this action, improve the contact degree of air and adsorbent layer, so that oxygen component in air is more fully adsorbed by adsorbent layer, to this, improve nitrogen gas purity, guarantee the technical effect required in subsequent production. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the overall structure schematic diagram of the utility model provides a kind of adsorption type nitrogen generator for traditional chinese medicine decoction pieces packaging;

[0013] Figure 2 It is the internal structure schematic diagram of the utility model provides a kind of adsorption type nitrogen generator for traditional chinese medicine decoction pieces packaging;

[0014] Figure 3 It is the internal structure schematic diagram of the adsorber of the utility model provides a kind of adsorption type nitrogen generator for traditional chinese medicine decoction pieces packaging;

[0015] Figure 4 It is the overall structure schematic diagram of the centrifugal separation component of the utility model provides a kind of adsorption type nitrogen generator for traditional chinese medicine decoction pieces packaging;

[0016] Figure 5 It is the internal section structure schematic diagram of the centrifugal separation component of the utility model provides a kind of adsorption type nitrogen generator for traditional chinese medicine decoction pieces packaging.

[0017] In the drawing, 1, machine warehouse;2, nitrogen meter;3, nitrogen outlet pipe;4, pressure equalizing delivery pipe;5, adsorber;6, shunt pipe;7, breather pipe;8, gas storage tank;9, nitrogen delivery pipe;10, adsorbent layer;11, centrifugal separation component;1101, arc wedge;1102, gas delivery groove pipe;1103, adjusting shaft;1104, air inlet pipe;1105, adjusting motor;1106, bottom fixed ring;1107, bottom annular baffle;1108, middle fixed ring;1109, middle annular baffle;1110, top fixed ring;1111, top annular baffle;1112, brake gear;1113, rotating plate;1114, driven gear;1115, rotating shaft;12, waste oxygen discharge pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0019] The utility model discloses a kind of adsorption type nitrogen generator for traditional Chinese medicine decoction pieces packaging, mainly applied to the scene that adsorption type nitrogen generator is due to adsorber internal structure is simple, only be provided with grid and gasket, leading compressed air is concentrated from center, inner wall adsorbent cannot be fully utilized, to reduce the nitrogen-oxygen separation efficiency.

[0020] With reference to Figures 1-3 An adsorption type nitrogen generator for traditional Chinese medicine decoction pieces packaging, comprising: a warehouse 1, two adsorbers 5 are arranged inside the warehouse 1, the lower end of the two adsorbers 5 is inserted with the same shunt pipe 6, and the inner wall of the two adsorbers 5 is respectively provided with an adsorbent layer 10; a centrifugal separation assembly 11, two centrifugal separation assemblies 11 are respectively arranged inside the corresponding adsorber 5, and the centrifugal separation assembly 11 is used to provide an annular flow track for the compressed air entering the inside of the adsorber 5, so that the compressed air always flows close to the inner wall of the adsorbent layer 10.

[0021] With reference to Figures 1-5 In a preferred scheme, the centrifugal separation assembly 11 comprises: a top fixed ring 1110, which is fixedly connected to the inner wall of the adsorbent layer 10, and the upper and lower ends of the top fixed ring 1110 are respectively fixedly connected with a top annular partition plate 1111; a middle fixed ring 1108, which is fixedly connected to the inner wall of the adsorbent layer 10, and the upper and lower ends of the middle fixed ring 1108 are respectively fixedly connected with a middle annular partition plate 1109, and the middle fixed ring 1108 is located below the top fixed ring 1110; and a bottom fixed ring 1106, which is fixedly connected to the inner wall of the adsorbent layer 10. The upper and lower ends of the bottom fixed ring 1106 are respectively fixedly connected with a bottom annular partition plate 1107, and the bottom fixed ring 1106 is located below the middle fixed ring 1108.

[0022] In the scheme, the centrifugal separation assembly 11 further comprises: an adjusting shaft 1103, one end of the plurality of adjusting shafts 1103 is connected to the inside of the plurality of adjusting holes opened on the opposite side of the two bottom annular partition plates 1107 through bearings at equal intervals, the other end of the plurality of adjusting shafts 1103 respectively passes through the two middle annular partition plates 1109 and the two top annular partition plates 1111, the outer wall of the plurality of adjusting shafts 1103 is fixedly provided with a rotating plate 1113, and the plurality of rotating plates 1113 are respectively located between the two bottom annular partition plates 1107, the two middle annular partition plates 1109 and the two top annular partition plates 1111.

[0023] In the scheme, the centrifugal separation assembly 11 further comprises: a plurality of driven gears 1114, each of which is fixedly connected to the outer wall of the corresponding adjusting shaft 1103 between the bottom annular partition plate 1107 and the middle annular partition plate 1109; a rotating shaft 1115, which is connected to the rotating hole opened on one side of the lowermost bottom annular partition plate 1107 through a bearing, and one end of the rotating shaft 1115 is fixedly connected with a brake gear 1112 which is engaged with the plurality of driven gears 1114; and an adjusting motor 1105, which is fixedly connected to the lower side of the lowermost bottom annular partition plate 1107, and the driving end of the adjusting motor 1105 is connected to the other end of the rotating shaft 1115 through a shaft coupling.

[0024] In the scheme, the centrifugal separation assembly 11 further comprises: a plurality of arc-shaped wedges 1101, each of which is arranged inside the two bottom annular partition plates 1107, the two middle annular partition plates 1109 and the two top annular partition plates 1111; an air inlet pipe 1104, which is inserted into the inner wall of the bottom fixed ring 1106, and the air outlet end of the air inlet pipe 1104 is located inside the two bottom annular partition plates 1107 and close to the arc surface of the corresponding arc-shaped wedge 1101, and the air inlet end of the air inlet pipe 1104 is connected with the flow divider 6; and two gas conveying groove pipes 1102, each of which is inserted into the middle annular partition plate 1109 and the top annular partition plate 1111, the air inlet end of the gas conveying groove pipe 1102 located in the middle annular partition plate 1109 is inserted into the two bottom annular partition plates 1107 and connected, the air inlet end of the gas conveying groove pipe 1102 located in the top annular partition plate 1111 is inserted into the two middle annular partition plates 1109 and connected, and the air outlet grooves of the two gas conveying groove pipes 1102 are close to the arc surfaces of the corresponding arc-shaped wedges 1101 respectively.

[0025] When the nitrogen and oxygen are separated, the air first entering the inside of the two bottom annular partitions 1107 flows out from the air outlet end corresponding to the air inlet pipe 1104, and under the action of the corresponding arc-shaped wedge 1101, the compressed air flows along the inner wall of the adsorbent layer 10 in a circular manner. At the same time, due to the blocking of the plurality of rotating plates 1113, the air can only flow in a circular manner close to the inner wall of the adsorbent layer 10. Under this action, the contact degree of the air and the adsorbent layer 10 is improved, so that the oxygen component in the air is more fully adsorbed by the adsorbent layer 10, thereby improving the purity of nitrogen and ensuring the needs of subsequent production. When the air circulates around the two bottom annular partitions 1107, it is transported to the inside of the two middle annular partitions 1109 through one of the gas conveying groove pipes 1102. The air flowing out from the gas conveying groove pipe 1102 still flows in a circular manner close to the inner wall of the adsorbent layer 10 in the middle annular partition 1109 under the action of the corresponding arc-shaped wedge 1101 and the corresponding plurality of rotating plates 1113. Subsequently, the air enters the inside of the two top annular partitions 1111 through the other gas conveying groove pipe 1102. In this process, by arranging multiple partitions, the contact time of the air and the adsorbent layer 10 is increased, so that the oxygen is more fully adsorbed. At the same time, by adjusting the motor 1105 to drive the plurality of driven gears 1114 to rotate, the included angle between the plurality of rotating plates 1113 and the adsorbent layer 10 can be adjusted at the same time, so as to adjust the flow amount and rate of the air according to the needs.

[0026] Referring to Figures 1-3 In a preferred embodiment, one end of the air pipe 7 is inserted into one side of the machine house 1, the other end of the air pipe 7 is connected in communication with the shunt pipe 6, the upper side of the two adsorbers 5 is provided with the same pressure equalizing delivery pipe 4, the inside of the machine house 1 is respectively provided with a gas storage tank 8 and a nitrogen measuring instrument 2, the upper side of the two adsorbers 5 is respectively provided with and connected with one end of the waste oxygen discharge pipe 12, the other end of the two waste oxygen discharge pipes 12 respectively penetrates through the inner wall of the machine house 1 and is located outside, the other end of the pressure equalizing delivery pipe 4 is connected in communication with the gas storage tank 8, the upper side of the gas storage tank 8 is provided with one end of the nitrogen conveying pipe 9 and is connected in communication, the other end of the nitrogen conveying pipe 9 is inserted into the inside of the nitrogen measuring instrument 2, one side of the nitrogen measuring instrument 2 is provided with the nitrogen outlet pipe 3.

[0027] Working principle: in use, first of all, the compressed air system is made of air through the air pipe 7 into the device inside, then through the shunt pipe 6, finally through two air inlet pipe 1104 respectively into the two adsorber 5 inside, first into two bottom layer annular partition 1107 inside the air from the corresponding air inlet pipe 1104 outflow after the corresponding arc wedge 1101 under the action of air along the adsorbent layer 10 inner wall around flow, at the same time, due to the blocking of a plurality of rotating plate 1113, air can only closely adsorbent layer 10 inner wall around flow, under the action of, improve the contact degree of air and adsorbent layer 10, so that the oxygen component in the air is more fully adsorbed by adsorbent layer 10, so as to improve the purity of nitrogen, ensure the follow-up production needs, when the air in two bottom layer annular partition 1107 around a week after, through one of the gas groove pipe 1102 is transported to the inside of two middle layer annular partition 1109, while from one of the gas groove pipe 1102 outflow air under the action of corresponding arc wedge 1101 and corresponding plurality of rotating plate 1113, still make air in the middle layer annular partition 1109 inside closely adsorbent layer 10 inner wall around flow, then through the other gas groove pipe 1102 into two top layer annular partition 1111 inside, in the process, by setting up multiple partition to increase the air and adsorbent layer 10 contact duration so that the oxygen is more fully adsorbed, at the same time, by adjusting the motor 1105 make brake gear 1112 driven gear 1114 rotation, so as to adjust the angle between the plurality of rotating plate 1113 and adsorbent layer 10, so as to adjust the flow and rate of air according to the required, after the same process, two adsorption gas inside the nitrogen through the uniform delivery pipe 4 into the gas storage tank 8 inside balance pressure and purity fluctuation, the prepared storage tank stored nitrogen gas can meet the requirements of the workshop finally through the nitrogen outlet pipe 3 is transported to the workshop each gas point, in order to meet the requirements of the decoction piece workshop nitrogen filled packaging, when closing the uniform delivery pipe 4 to two adsorber 5 for pressure reduction, the adsorbent layer 10 in the adsorbed oxygen from which desorption, then through two exhaust oxygen pipe 12 respectively, so that the adsorbent in the adsorbent layer 10 is regenerated, so as to achieve the purpose of continuous oxygen delivery.

[0028] The above description is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this. The replacement can be the replacement of part of the structure, device, method step, or the complete technical solution. According to the technical scheme and the utility model concept of the present application, equivalent replacement or change should be covered in the protection scope of the present application.

Claims

1. A kind of adsorption type nitrogen generator for traditional Chinese medicine decoction pieces packaging, it is characterized by, Include: Machine bin (1), the inside of machine bin (1) is provided with two adsorbers (5), the lower end of two adsorbers (5) is inserted with the same shunt pipe (6), and the inner wall of two adsorbers (5) is provided with adsorbent layer (10) respectively;Centrifugal separation assembly (11), two centrifugal separation assemblies (11) are arranged in the inside of corresponding adsorber (5) respectively, and centrifugal separation assembly (11) is used for providing annular flow track for compressed air entering the inside of adsorber (5), so that compressed air always flows close to the inner wall of adsorbent layer (10).

2. The adsorption type nitrogen generator for packaging traditional Chinese medicine decoction pieces according to claim 1, characterized in that, The centrifugal separation assembly (11) includes: a top fixed ring (1110) fixedly connected to the inner wall of the adsorbent layer (10), the upper and lower ends of the top fixed ring (1110) are fixedly connected with a top annular partition plate (1111) respectively;A middle fixed ring (1108) is fixedly connected to the inner wall of the adsorbent layer (10), the upper and lower ends of the middle fixed ring (1108) are fixedly connected with a middle annular partition plate (1109) respectively, and the middle fixed ring (1108) is located below the top fixed ring (1110);A bottom fixed ring (1106) is fixedly connected to the inner wall of the adsorbent layer (10), the upper and lower ends of the bottom fixed ring (1106) are fixedly connected with a bottom annular partition plate (1107) respectively, and the bottom fixed ring (1106) is located below the middle fixed ring (1108).

3. The adsorption type nitrogen generator for packaging traditional Chinese medicine decoction pieces according to claim 2, characterized in that, The centrifugal separation assembly (11) further includes: a plurality of adjustment shafts (1103), one end of the plurality of adjustment shafts (1103) is connected to a plurality of adjustment holes opened on the opposite side of the two bottom annular partition plates (1107) through bearings, the other end of the plurality of adjustment shafts (1103) passes through the two middle annular partition plates (1109) and the two top annular partition plates (1111) respectively, the outer wall of the plurality of adjustment shafts (1103) is fixedly connected with a rotating plate (1113), and the plurality of rotating plates (1113) are located between the two bottom annular partition plates (1107), the two middle annular partition plates (1109) and the two top annular partition plates (1111) respectively.

4. The adsorption type nitrogen generator for packaging traditional Chinese medicine decoction pieces according to claim 3, characterized in that, The centrifugal separation assembly (11) further includes: a plurality of driven gears (1114) fixedly connected to the outer wall of the corresponding adjustment shaft (1103) between the bottom annular partition plate (1107) and the middle annular partition plate (1109);A rotating shaft (1115) is connected to a rotating hole opened on one side of the lowermost bottom annular partition plate (1107) through a bearing, one end of the rotating shaft (1115) is fixedly connected with a brake gear (1112), the brake gear (1112) is engaged with a plurality of driven gears (1114);An adjusting motor (1105) is fixedly connected to the lower side of the lowermost bottom annular partition plate (1107), and the driving end of the adjusting motor (1105) is connected to the other end of the rotating shaft (1115) through a shaft coupling.

5. The adsorption type nitrogen generator for packaging traditional Chinese medicine decoction pieces according to claim 4, characterized in that, The centrifugal separation assembly (11) further comprises: arc-shaped wedges (1101), a plurality of arc-shaped wedges (1101) are respectively arranged inside the two bottom layer annular partitions (1107), the two middle layer annular partitions (1109) and the two top layer annular partitions (1111); an air inlet pipe (1104) is inserted into the inner wall of the bottom layer fixed ring (1106), the air outlet end of the air inlet pipe (1104) is located inside the two bottom layer annular partitions (1107) and close to the arc surface of the corresponding arc-shaped wedge (1101), the air inlet end of the air inlet pipe (1104) is connected with the shunt pipe (6); two gas conveying groove pipes (1102) are respectively inserted into the middle layer annular partitions (1109) and the top layer annular partitions (1111), the air inlet end of the gas conveying groove pipe (1102) located in the middle layer annular partition (1109) is inserted into the two bottom layer annular partitions (1107) and is communicated, the air inlet end of the gas conveying groove pipe (1102) located in the top layer annular partition (1111) is inserted into the two middle layer annular partitions (1109) and is communicated, the air outlet grooves of the two gas conveying groove pipes (1102) are respectively close to the arc surface of the corresponding arc-shaped wedge (1101).

6. The adsorption type nitrogen generator for packaging traditional Chinese medicine decoction pieces according to claim 1, characterized in that, One end of the air pipe (7) is inserted into one side of the machine bin (1), the other end of the air pipe (7) is communicated with the shunt pipe (6), the upper side of the two adsorbers (5) is provided with the same pressure equalizing delivery pipe (4), the inside of the machine bin (1) is respectively provided with the gas storage tank (8) and the nitrogen measuring instrument (2), one end of the waste oxygen discharge pipe (12) is respectively arranged and communicated on the upper side of the two adsorbers (5), the other end of the two waste oxygen discharge pipes (12) respectively passes through the inner wall of the machine bin (1) and is located outside.

7. The adsorption type nitrogen generator for packaging traditional Chinese medicine decoction pieces according to claim 6, characterized in that, The other end of the pressure equalizing delivery pipe (4) is communicated with the gas storage tank (8), one end of the nitrogen conveying pipe (9) is arranged on the upper side of the gas storage tank (8) and is communicated, the other end of the nitrogen conveying pipe (9) is inserted into the inside of the nitrogen measuring instrument (2), the nitrogen outlet pipe (3) is arranged on one side of the nitrogen measuring instrument (2).